From 66515307800887e0bf56845dbeb05b6d8c9e2eb0 Mon Sep 17 00:00:00 2001
From: Raza Mehdi <srmk@outlook.com>
Date: Tue, 18 Jun 2024 14:52:19 +0500
Subject: [PATCH] Start build from PHP 8.0.

Signed-off-by: Raza Mehdi <srmk@outlook.com>
---
 .github/workflows/static-analysis.yml         |   2 +-
 .github/workflows/tests.yml                   |   2 +-
 .../AdapterBillingPlansPricingHelpersTest.php |  15 +-
 tests/Feature/AdapterConfigTest.php           |  53 +-
 .../AdapterCreateSubscriptionHelpersTest.php  |  87 +--
 .../Feature/AdapterExperienceContextTest.php  |  11 +-
 tests/Feature/AdapterFeatureTest.php          | 511 +++++++++---------
 tests/Feature/AdapterOrdersHelperTest.php     |  11 +-
 .../AdapterPaymentMethodTokensHelpersTest.php |  27 +-
 tests/Unit/Adapter/BillingPlansTest.php       |  29 +-
 tests/Unit/Adapter/CatalogProductsTest.php    |  17 +-
 tests/Unit/Adapter/DisputeActionsTest.php     |  13 +-
 tests/Unit/Adapter/DisputesTest.php           |  13 +-
 tests/Unit/Adapter/IdentityTest.php           |   5 +-
 tests/Unit/Adapter/InvoicesSearchTest.php     |   9 +-
 tests/Unit/Adapter/InvoicesTemplatesTest.php  |  21 +-
 tests/Unit/Adapter/InvoicesTest.php           |  57 +-
 tests/Unit/Adapter/OrdersTest.php             |   9 +-
 tests/Unit/Adapter/PartnerReferralsTest.php   |   9 +-
 .../Adapter/PaymentAuthorizationsTest.php     |  17 +-
 tests/Unit/Adapter/PaymentCapturesTest.php    |   9 +-
 .../PaymentExperienceWebProfilesTest.php      |  25 +-
 tests/Unit/Adapter/PaymentRefundsTest.php     |   5 +-
 tests/Unit/Adapter/PayoutsTest.php            |  17 +-
 tests/Unit/Adapter/ReferencedPayoutsTest.php  |  17 +-
 tests/Unit/Adapter/ReportingTest.php          |   9 +-
 tests/Unit/Adapter/SubscriptionsTest.php      |  37 +-
 tests/Unit/Adapter/TrackersTest.php           |  13 +-
 tests/Unit/Adapter/WebHooksEventsTest.php     |  17 +-
 tests/Unit/Adapter/WebHooksTest.php           |  25 +-
 .../Unit/Adapter/WebHooksVerificationTest.php |   5 +-
 tests/Unit/AdapterTest.php                    |  25 +-
 tests/Unit/Client/BillingPlansTest.php        |  29 +-
 tests/Unit/Client/CatalogProductsTest.php     |  17 +-
 tests/Unit/Client/DisputeActionsTest.php      |  13 +-
 tests/Unit/Client/DisputesTest.php            |  13 +-
 tests/Unit/Client/IdentityTest.php            |   5 +-
 tests/Unit/Client/InvoicesSearchTest.php      |   5 +-
 tests/Unit/Client/InvoicesTemplatesTest.php   |  21 +-
 tests/Unit/Client/InvoicesTest.php            |  57 +-
 tests/Unit/Client/OrdersTest.php              |   5 +-
 tests/Unit/Client/PartnerReferralsTest.php    |   9 +-
 .../Unit/Client/PaymentAuthorizationsTest.php |  17 +-
 tests/Unit/Client/PaymentCapturesTest.php     |   9 +-
 .../PaymentExperienceWebProfilesTest.php      |  25 +-
 tests/Unit/Client/PaymentRefundsTest.php      |   5 +-
 tests/Unit/Client/PayoutsTest.php             |  17 +-
 tests/Unit/Client/ReferencedPayoutsTest.php   |  17 +-
 tests/Unit/Client/ReportingTest.php           |   9 +-
 tests/Unit/Client/SubscriptionsTest.php       |  37 +-
 tests/Unit/Client/TrackersTest.php            |  13 +-
 tests/Unit/Client/WebHooksEventsTest.php      |  17 +-
 tests/Unit/Client/WebHooksTest.php            |  25 +-
 .../Unit/Client/WebHooksVerificationTest.php  |   5 +-
 tests/Unit/ClientTest.php                     |   9 +-
 55 files changed, 780 insertions(+), 721 deletions(-)

diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index b2dfa1ac..fdb19c0a 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
+        php-versions: ['8.0', '8.1', '8.2', '8.3']
     steps:
     - name: Checkout
       uses: actions/checkout@v2
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 61d1ac23..5f04e855 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
+        php-versions: ['8.0', '8.1', '8.2', '8.3']
     steps:
     - name: Checkout
       uses: actions/checkout@v2
diff --git a/tests/Feature/AdapterBillingPlansPricingHelpersTest.php b/tests/Feature/AdapterBillingPlansPricingHelpersTest.php
index bfd2967f..024b1a0a 100644
--- a/tests/Feature/AdapterBillingPlansPricingHelpersTest.php
+++ b/tests/Feature/AdapterBillingPlansPricingHelpersTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Feature;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -13,10 +14,10 @@ class AdapterBillingPlansPricingHelpersTest extends TestCase
     use MockResponsePayloads;
 
     /** @var string */
-    protected static $access_token = '';
+    protected static string $access_token = '';
 
-    /** @var \Srmklive\PayPal\Services\PayPal */
-    protected $client;
+    /** @var PayPalClient */
+    protected PayPalClient $client;
 
     protected function setUp(): void
     {
@@ -34,8 +35,8 @@ protected function setUp(): void
         parent::setUp();
     }
 
-    /** @test */
-    public function it_can_update_pricing_schemes_for_a_billing_plan()
+    #[Test]
+    public function it_can_update_pricing_schemes_for_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -55,8 +56,8 @@ public function it_can_update_pricing_schemes_for_a_billing_plan()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_set_custom_limits_when_listing_billing_plans()
+    #[Test]
+    public function it_can_set_custom_limits_when_listing_billing_plans(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
diff --git a/tests/Feature/AdapterConfigTest.php b/tests/Feature/AdapterConfigTest.php
index 3e603175..6ee7d3e5 100644
--- a/tests/Feature/AdapterConfigTest.php
+++ b/tests/Feature/AdapterConfigTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Feature;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -10,8 +11,8 @@ class AdapterConfigTest extends TestCase
 {
     use MockClientClasses;
 
-    /** @var \Srmklive\PayPal\Services\PayPal */
-    protected $client;
+    /** @var PayPalClient */
+    protected PayPalClient $client;
 
     protected function setUp(): void
     {
@@ -20,8 +21,8 @@ protected function setUp(): void
         parent::setUp();
     }
 
-    /** @test */
-    public function it_throws_exception_if_invalid_credentials_are_provided()
+    #[Test]
+    public function it_throws_exception_if_invalid_credentials_are_provided(): void
     {
         $this->expectException(\RuntimeException::class);
         $this->expectExceptionMessage('Invalid configuration provided. Please provide valid configuration for PayPal API. You can also refer to the documentation at https://srmklive.github.io/laravel-paypal/docs.html to setup correct configuration.');
@@ -29,8 +30,8 @@ public function it_throws_exception_if_invalid_credentials_are_provided()
         $this->client = new PayPalClient([]);
     }
 
-    /** @test */
-    public function it_throws_exception_if_invalid_mode_is_provided()
+    #[Test]
+    public function it_throws_exception_if_invalid_mode_is_provided(): void
     {
         $this->expectException(\RuntimeException::class);
         $this->expectExceptionMessage('Invalid configuration provided. Please provide valid configuration for PayPal API. You can also refer to the documentation at https://srmklive.github.io/laravel-paypal/docs.html to setup correct configuration.');
@@ -41,8 +42,8 @@ public function it_throws_exception_if_invalid_mode_is_provided()
         $this->client = new PayPalClient($credentials);
     }
 
-    /** @test */
-    public function it_throws_exception_if_empty_credentials_are_provided()
+    #[Test]
+    public function it_throws_exception_if_empty_credentials_are_provided(): void
     {
         $this->expectException(\RuntimeException::class);
         $this->expectExceptionMessage('Invalid configuration provided. Please provide valid configuration for PayPal API. You can also refer to the documentation at https://srmklive.github.io/laravel-paypal/docs.html to setup correct configuration.');
@@ -53,8 +54,8 @@ public function it_throws_exception_if_empty_credentials_are_provided()
         $this->client = new PayPalClient($credentials);
     }
 
-    /** @test */
-    public function it_throws_exception_if_credentials_items_are_not_provided()
+    #[Test]
+    public function it_throws_exception_if_credentials_items_are_not_provided(): void
     {
         $item = 'client_id';
 
@@ -67,30 +68,30 @@ public function it_throws_exception_if_credentials_items_are_not_provided()
         $client = new PayPalClient($credentials);
     }
 
-    /** @test */
-    public function it_can_take_valid_credentials_and_return_the_client_instance()
+    #[Test]
+    public function it_can_take_valid_credentials_and_return_the_client_instance(): void
     {
         $this->assertInstanceOf(PayPalClient::class, $this->client);
     }
 
-    /** @test */
-    public function it_throws_exception_if_invalid_credentials_are_provided_through_method()
+    #[Test]
+    public function it_throws_exception_if_invalid_credentials_are_provided_through_method(): void
     {
         $this->expectException(\RuntimeException::class);
 
         $this->client->setApiCredentials([]);
     }
 
-    /** @test */
-    public function it_returns_the_client_instance_if_valid_credentials_are_provided_through_method()
+    #[Test]
+    public function it_returns_the_client_instance_if_valid_credentials_are_provided_through_method(): void
     {
         $this->client->setApiCredentials($this->getApiCredentials());
 
         $this->assertInstanceOf(PayPalClient::class, $this->client);
     }
 
-    /** @test */
-    public function it_throws_exception_if_invalid_currency_is_set()
+    #[Test]
+    public function it_throws_exception_if_invalid_currency_is_set(): void
     {
         $this->expectException(\RuntimeException::class);
 
@@ -99,8 +100,8 @@ public function it_throws_exception_if_invalid_currency_is_set()
         $this->assertNotEquals('PKR', $this->client->getCurrency());
     }
 
-    /** @test */
-    public function it_can_set_a_valid_currency()
+    #[Test]
+    public function it_can_set_a_valid_currency(): void
     {
         $this->client->setCurrency('EUR');
 
@@ -108,8 +109,8 @@ public function it_can_set_a_valid_currency()
         $this->assertEquals('EUR', $this->client->getCurrency());
     }
 
-    /** @test */
-    public function it_can_set_a_request_header()
+    #[Test]
+    public function it_can_set_a_request_header(): void
     {
         $this->client->setRequestHeader('Prefer', 'return=representation');
 
@@ -117,8 +118,8 @@ public function it_can_set_a_request_header()
         $this->assertEquals($this->client->getRequestHeader('Prefer'), 'return=representation');
     }
 
-    /** @test */
-    public function it_can_set_multiple_request_headers()
+    #[Test]
+    public function it_can_set_multiple_request_headers(): void
     {
         $this->client->setRequestHeaders([
             'PayPal-Request-Id'             => 'some-request-id',
@@ -129,8 +130,8 @@ public function it_can_set_multiple_request_headers()
         $this->assertEquals($this->client->getRequestHeader('PayPal-Partner-Attribution-Id'), 'some-attribution-id');
     }
 
-    /** @test */
-    public function it_throws_exception_if_options_header_not_set()
+    #[Test]
+    public function it_throws_exception_if_options_header_not_set(): void
     {
         $this->expectException(\RuntimeException::class);
         $this->expectExceptionCode('0');
diff --git a/tests/Feature/AdapterCreateSubscriptionHelpersTest.php b/tests/Feature/AdapterCreateSubscriptionHelpersTest.php
index 550fa520..47934d16 100644
--- a/tests/Feature/AdapterCreateSubscriptionHelpersTest.php
+++ b/tests/Feature/AdapterCreateSubscriptionHelpersTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Feature;
 
 use Carbon\Carbon;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -14,10 +15,10 @@ class AdapterCreateSubscriptionHelpersTest extends TestCase
     use MockResponsePayloads;
 
     /** @var string */
-    protected static $access_token = '';
+    protected static string $access_token = '';
 
-    /** @var \Srmklive\PayPal\Services\PayPal */
-    protected $client;
+    /** @var PayPalClient */
+    protected PayPalClient $client;
 
     protected function setUp(): void
     {
@@ -35,8 +36,8 @@ protected function setUp(): void
         parent::setUp();
     }
 
-    /** @test */
-    public function it_can_create_a_monthly_subscription()
+    #[Test]
+    public function it_can_create_a_monthly_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -76,8 +77,8 @@ public function it_can_create_a_monthly_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_daily_subscription()
+    #[Test]
+    public function it_can_create_a_daily_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -117,8 +118,8 @@ public function it_can_create_a_daily_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_weekly_subscription()
+    #[Test]
+    public function it_can_create_a_weekly_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -158,8 +159,8 @@ public function it_can_create_a_weekly_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_create_an_annual_subscription()
+    #[Test]
+    public function it_can_create_an_annual_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -199,8 +200,8 @@ public function it_can_create_an_annual_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_subscription_with_custom_defined_interval()
+    #[Test]
+    public function it_can_create_a_subscription_with_custom_defined_interval(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -240,8 +241,8 @@ public function it_can_create_a_subscription_with_custom_defined_interval()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_throws_exception_when_invalid_interval_is_provided_for_creating_a_subscription()
+    #[Test]
+    public function it_throws_exception_when_invalid_interval_is_provided_for_creating_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -255,8 +256,8 @@ public function it_throws_exception_when_invalid_interval_is_provided_for_creati
         $this->client = $this->client->addCustomPlan('Demo Plan', 'Demo Plan', 100, 'MONTHLY', 3);
     }
 
-    /** @test */
-    public function it_throws_exception_when_get_error_for_creating_a_billing_plan()
+    #[Test]
+    public function it_throws_exception_when_get_error_for_creating_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -282,8 +283,8 @@ public function it_throws_exception_when_get_error_for_creating_a_billing_plan()
         $this->client = $this->client->addMonthlyPlan('Demo Plan', 'Demo Plan', 100);
     }
 
-    /** @test */
-    public function it_throws_exception_when_get_error_for_creating_a_product()
+    #[Test]
+    public function it_throws_exception_when_get_error_for_creating_a_product(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -301,8 +302,8 @@ public function it_throws_exception_when_get_error_for_creating_a_product()
         $this->client = $this->client->addProduct('Demo Product', 'Demo Product', 'SERVICE', 'SOFTWARE');
     }
 
-    /** @test */
-    public function it_can_create_a_subscription_without_trial()
+    #[Test]
+    public function it_can_create_a_subscription_without_trial(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -340,8 +341,8 @@ public function it_can_create_a_subscription_without_trial()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_subscription_by_existing_product_and_billing_plan()
+    #[Test]
+    public function it_can_create_a_subscription_by_existing_product_and_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -365,8 +366,8 @@ public function it_can_create_a_subscription_by_existing_product_and_billing_pla
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_daily_subscription()
+    #[Test]
+    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_daily_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -393,8 +394,8 @@ public function it_skips_product_and_billing_plan_creation_if_already_set_when_c
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_weekly_subscription()
+    #[Test]
+    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_weekly_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -421,8 +422,8 @@ public function it_skips_product_and_billing_plan_creation_if_already_set_when_c
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_monthly_subscription()
+    #[Test]
+    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_monthly_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -449,8 +450,8 @@ public function it_skips_product_and_billing_plan_creation_if_already_set_when_c
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_an_annual_subscription()
+    #[Test]
+    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_an_annual_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -477,8 +478,8 @@ public function it_skips_product_and_billing_plan_creation_if_already_set_when_c
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_subscription_with_custom_intervals()
+    #[Test]
+    public function it_skips_product_and_billing_plan_creation_if_already_set_when_creating_a_subscription_with_custom_intervals(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -505,8 +506,8 @@ public function it_skips_product_and_billing_plan_creation_if_already_set_when_c
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_add_setup_fees_when_creating_subscription()
+    #[Test]
+    public function it_can_add_setup_fees_when_creating_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -533,8 +534,8 @@ public function it_can_add_setup_fees_when_creating_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_add_shipping_address_when_creating_subscription()
+    #[Test]
+    public function it_can_add_shipping_address_when_creating_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -560,8 +561,8 @@ public function it_can_add_shipping_address_when_creating_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_add_custom_payment_failure_threshold_value_when_creating_subscription()
+    #[Test]
+    public function it_can_add_custom_payment_failure_threshold_value_when_creating_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -588,8 +589,8 @@ public function it_can_add_custom_payment_failure_threshold_value_when_creating_
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_set_tax_percentage_when_creating_subscription()
+    #[Test]
+    public function it_can_set_tax_percentage_when_creating_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -616,8 +617,8 @@ public function it_can_set_tax_percentage_when_creating_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_subscription_with_fixed_installments()
+    #[Test]
+    public function it_can_create_a_subscription_with_fixed_installments(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
diff --git a/tests/Feature/AdapterExperienceContextTest.php b/tests/Feature/AdapterExperienceContextTest.php
index 7018e2f3..9615cbf0 100644
--- a/tests/Feature/AdapterExperienceContextTest.php
+++ b/tests/Feature/AdapterExperienceContextTest.php
@@ -5,6 +5,7 @@
 namespace Srmklive\PayPal\Tests\Feature;
 
 use Carbon\Carbon;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -18,10 +19,10 @@ class AdapterExperienceContextTest extends TestCase
     use MockResponsePayloads;
 
     /** @var string */
-    protected static $access_token = '';
+    protected static string $access_token = '';
 
-    /** @var \Srmklive\PayPal\Services\PayPal */
-    protected $client;
+    /** @var PayPalClient */
+    protected PayPalClient $client;
 
     protected function setUp(): void
     {
@@ -39,8 +40,8 @@ protected function setUp(): void
         parent::setUp();
     }
 
-    /** @test */
-    public function it_can_set_payment_experience_context_before_performing_api_call()
+    #[Test]
+    public function it_can_set_payment_experience_context_before_performing_api_call(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
diff --git a/tests/Feature/AdapterFeatureTest.php b/tests/Feature/AdapterFeatureTest.php
index a22750c6..e4b04600 100644
--- a/tests/Feature/AdapterFeatureTest.php
+++ b/tests/Feature/AdapterFeatureTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Feature;
 
 use Carbon\Carbon;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -16,23 +17,26 @@ class AdapterFeatureTest extends TestCase
     use MockResponsePayloads;
 
     /** @var string */
-    protected static $access_token = '';
+    protected static string $access_token = '';
 
     /** @var string */
-    protected static $product_id = '';
+    protected static string $product_id = '';
 
-    /** @var \Srmklive\PayPal\Services\PayPal */
-    protected $client;
+    /** @var PayPalClient */
+    protected PayPalClient $client;
 
     protected function setUp(): void
     {
-        $this->client = new PayPalClient($this->getApiCredentials());
+        try {
+            $this->client = new PayPalClient($this->getApiCredentials());
+        } catch (\Exception $e) {
+        }
 
         parent::setUp();
     }
 
-    /** @test */
-    public function it_returns_error_if_invalid_credentials_are_used_to_get_access_token()
+    #[Test]
+    public function it_returns_error_if_invalid_credentials_are_used_to_get_access_token(): void
     {
         $this->client = new PayPalClient($this->getMockCredentials());
         $response = $this->client->getAccessToken();
@@ -41,8 +45,8 @@ public function it_returns_error_if_invalid_credentials_are_used_to_get_access_t
         $this->assertArrayHasKey('error', $response);
     }
 
-    /** @test */
-    public function it_can_get_access_token()
+    #[Test]
+    public function it_can_get_access_token(): void
     {
         $this->client->setClient(
             $this->mock_http_client(
@@ -57,8 +61,8 @@ public function it_can_get_access_token()
         $this->assertNotEmpty($response['access_token']);
     }
 
-    /** @test */
-    public function it_can_create_a_billing_plan()
+    #[Test]
+    public function it_can_create_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -73,14 +77,17 @@ public function it_can_create_a_billing_plan()
 
         $expectedParams = $this->createPlanParams();
 
-        $response = $this->client->setRequestHeader('PayPal-Request-Id', 'some-request-id')->createPlan($expectedParams);
+        try {
+            $response = $this->client->setRequestHeader('PayPal-Request-Id', 'some-request-id')->createPlan($expectedParams);
+        } catch (\Throwable $e) {
+        }
 
         $this->assertNotEmpty($response);
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_list_billing_plans()
+    #[Test]
+    public function it_can_list_billing_plans(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -99,8 +106,8 @@ public function it_can_list_billing_plans()
         $this->assertArrayHasKey('plans', $response);
     }
 
-    /** @test */
-    public function it_can_update_a_billing_plan()
+    #[Test]
+    public function it_can_update_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -118,8 +125,8 @@ public function it_can_update_a_billing_plan()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_billing_plan()
+    #[Test]
+    public function it_can_show_details_for_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -138,8 +145,8 @@ public function it_can_show_details_for_a_billing_plan()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_activate_a_billing_plan()
+    #[Test]
+    public function it_can_activate_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -155,8 +162,8 @@ public function it_can_activate_a_billing_plan()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_deactivate_a_billing_plan()
+    #[Test]
+    public function it_can_deactivate_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -172,8 +179,8 @@ public function it_can_deactivate_a_billing_plan()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_update_pricing_for_a_billing_plan()
+    #[Test]
+    public function it_can_update_pricing_for_a_billing_plan(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -191,8 +198,8 @@ public function it_can_update_pricing_for_a_billing_plan()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_list_products()
+    #[Test]
+    public function it_can_list_products(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -211,8 +218,8 @@ public function it_can_list_products()
         $this->assertArrayHasKey('products', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_product()
+    #[Test]
+    public function it_can_create_a_product(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -235,8 +242,8 @@ public function it_can_create_a_product()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_update_a_product()
+    #[Test]
+    public function it_can_update_a_product(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -254,8 +261,8 @@ public function it_can_update_a_product()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_get_details_for_a_product()
+    #[Test]
+    public function it_can_get_details_for_a_product(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -274,8 +281,8 @@ public function it_can_get_details_for_a_product()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_acknowledge_item_is_returned_for_raised_dispute()
+    #[Test]
+    public function it_can_acknowledge_item_is_returned_for_raised_dispute(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -298,8 +305,8 @@ public function it_can_acknowledge_item_is_returned_for_raised_dispute()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_list_disputes()
+    #[Test]
+    public function it_can_list_disputes(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -318,8 +325,8 @@ public function it_can_list_disputes()
         $this->assertArrayHasKey('items', $response);
     }
 
-    /** @test */
-    public function it_can_partially_update_a_dispute()
+    #[Test]
+    public function it_can_partially_update_a_dispute(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -337,8 +344,8 @@ public function it_can_partially_update_a_dispute()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_get_details_for_a_dispute()
+    #[Test]
+    public function it_can_get_details_for_a_dispute(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -357,8 +364,8 @@ public function it_can_get_details_for_a_dispute()
         $this->assertArrayHasKey('dispute_id', $response);
     }
 
-    /** @test */
-    public function it_can_provide_evidence_for_a_dispute_claim()
+    #[Test]
+    public function it_can_provide_evidence_for_a_dispute_claim(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -388,8 +395,8 @@ public function it_can_provide_evidence_for_a_dispute_claim()
         $this->markTestIncomplete('Skipping the test');
     }
 
-    /** @test */
-    public function it_throws_exception_if_invalid_file_as_evidence_is_provided_for_a_dispute_claim()
+    #[Test]
+    public function it_throws_exception_if_invalid_file_as_evidence_is_provided_for_a_dispute_claim(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -417,8 +424,8 @@ public function it_throws_exception_if_invalid_file_as_evidence_is_provided_for_
         );
     }
 
-    /** @test */
-    public function it_throws_exception_if_file_size_as_evidence_exceeds_per_file_limit_for_a_dispute_claim()
+    #[Test]
+    public function it_throws_exception_if_file_size_as_evidence_exceeds_per_file_limit_for_a_dispute_claim(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -445,8 +452,8 @@ public function it_throws_exception_if_file_size_as_evidence_exceeds_per_file_li
         );
     }
 
-    /** @test */
-    public function it_throws_exception_if_file_size_as_evidence_exceeds_overall_limit_for_a_dispute_claim()
+    #[Test]
+    public function it_throws_exception_if_file_size_as_evidence_exceeds_overall_limit_for_a_dispute_claim(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -473,8 +480,8 @@ public function it_throws_exception_if_file_size_as_evidence_exceeds_overall_lim
         );
     }
 
-    /** @test */
-    public function it_can_offer_to_resolve_dispute_claim()
+    #[Test]
+    public function it_can_offer_to_resolve_dispute_claim(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -498,8 +505,8 @@ public function it_can_offer_to_resolve_dispute_claim()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_escalate_dispute_claim()
+    #[Test]
+    public function it_can_escalate_dispute_claim(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -521,8 +528,8 @@ public function it_can_escalate_dispute_claim()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_accept_dispute_claim()
+    #[Test]
+    public function it_can_accept_dispute_claim(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -544,8 +551,8 @@ public function it_can_accept_dispute_claim()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_accept_dispute_offer_resolution()
+    #[Test]
+    public function it_can_accept_dispute_offer_resolution(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -567,8 +574,8 @@ public function it_can_accept_dispute_offer_resolution()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_update_dispute_status()
+    #[Test]
+    public function it_can_update_dispute_status(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -590,8 +597,8 @@ public function it_can_update_dispute_status()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_settle_dispute()
+    #[Test]
+    public function it_can_settle_dispute(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -613,8 +620,8 @@ public function it_can_settle_dispute()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_decline_dispute_offer_resolution()
+    #[Test]
+    public function it_can_decline_dispute_offer_resolution(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -636,8 +643,8 @@ public function it_can_decline_dispute_offer_resolution()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_generate_unique_invoice_number()
+    #[Test]
+    public function it_can_generate_unique_invoice_number(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -656,8 +663,8 @@ public function it_can_generate_unique_invoice_number()
         $this->assertArrayHasKey('invoice_number', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_draft_invoice()
+    #[Test]
+    public function it_can_create_a_draft_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -678,8 +685,8 @@ public function it_can_create_a_draft_invoice()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_list_invoices()
+    #[Test]
+    public function it_can_list_invoices(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -698,8 +705,8 @@ public function it_can_list_invoices()
         $this->assertArrayHasKey('total_items', $response);
     }
 
-    /** @test */
-    public function it_can_delete_an_invoice()
+    #[Test]
+    public function it_can_delete_an_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -715,8 +722,8 @@ public function it_can_delete_an_invoice()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_update_an_invoice()
+    #[Test]
+    public function it_can_update_an_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -737,8 +744,8 @@ public function it_can_update_an_invoice()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_an_invoice()
+    #[Test]
+    public function it_can_show_details_for_an_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -757,8 +764,8 @@ public function it_can_show_details_for_an_invoice()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_cancel_an_invoice()
+    #[Test]
+    public function it_can_cancel_an_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -786,8 +793,8 @@ public function it_can_cancel_an_invoice()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_generate_qr_code_for_invoice()
+    #[Test]
+    public function it_can_generate_qr_code_for_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -805,8 +812,8 @@ public function it_can_generate_qr_code_for_invoice()
         $this->assertNotEmpty($response);
     }
 
-    /** @test */
-    public function it_can_register_payment_for_invoice()
+    #[Test]
+    public function it_can_register_payment_for_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -825,8 +832,8 @@ public function it_can_register_payment_for_invoice()
         $this->assertArrayHasKey('payment_id', $response);
     }
 
-    /** @test */
-    public function it_can_delete_payment_for_invoice()
+    #[Test]
+    public function it_can_delete_payment_for_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -842,8 +849,8 @@ public function it_can_delete_payment_for_invoice()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_refund_payment_for_invoice()
+    #[Test]
+    public function it_can_refund_payment_for_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -862,8 +869,8 @@ public function it_can_refund_payment_for_invoice()
         $this->assertArrayHasKey('refund_id', $response);
     }
 
-    /** @test */
-    public function it_can_delete_refund_for_invoice()
+    #[Test]
+    public function it_can_delete_refund_for_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -879,8 +886,8 @@ public function it_can_delete_refund_for_invoice()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_send_an_invoice()
+    #[Test]
+    public function it_can_send_an_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -906,8 +913,8 @@ public function it_can_send_an_invoice()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_send_reminder_for_an_invoice()
+    #[Test]
+    public function it_can_send_reminder_for_an_invoice(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -933,8 +940,8 @@ public function it_can_send_reminder_for_an_invoice()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_create_invoice_template()
+    #[Test]
+    public function it_can_create_invoice_template(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -955,8 +962,8 @@ public function it_can_create_invoice_template()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_list_invoice_templates()
+    #[Test]
+    public function it_can_list_invoice_templates(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -975,8 +982,8 @@ public function it_can_list_invoice_templates()
         $this->assertArrayHasKey('templates', $response);
     }
 
-    /** @test */
-    public function it_can_delete_an_invoice_template()
+    #[Test]
+    public function it_can_delete_an_invoice_template(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -992,8 +999,8 @@ public function it_can_delete_an_invoice_template()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_update_an_invoice_template()
+    #[Test]
+    public function it_can_update_an_invoice_template(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1014,8 +1021,8 @@ public function it_can_update_an_invoice_template()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_get_details_for_an_invoice_template()
+    #[Test]
+    public function it_can_get_details_for_an_invoice_template(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1034,8 +1041,8 @@ public function it_can_get_details_for_an_invoice_template()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_search_invoices()
+    #[Test]
+    public function it_can_search_invoices(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1054,8 +1061,8 @@ public function it_can_search_invoices()
         $this->assertArrayHasKey('total_items', $response);
     }
 
-    /** @test */
-    public function it_can_search_invoices_with_custom_filters()
+    #[Test]
+    public function it_can_search_invoices_with_custom_filters(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1088,8 +1095,8 @@ public function it_can_search_invoices_with_custom_filters()
         $this->assertArrayHasKey('items', $response);
     }
 
-    /** @test */
-    public function it_throws_exception_on_search_invoices_with_invalid_status()
+    #[Test]
+    public function it_throws_exception_on_search_invoices_with_invalid_status(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1109,8 +1116,8 @@ public function it_throws_exception_on_search_invoices_with_invalid_status()
             ->searchInvoices();
     }
 
-    /** @test */
-    public function it_throws_exception_on_search_invoices_with_invalid_amount_ranges()
+    #[Test]
+    public function it_throws_exception_on_search_invoices_with_invalid_amount_ranges(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1132,8 +1139,8 @@ public function it_throws_exception_on_search_invoices_with_invalid_amount_range
             ->searchInvoices();
     }
 
-    /** @test */
-    public function it_throws_exception_on_search_invoices_with_invalid_date_ranges()
+    #[Test]
+    public function it_throws_exception_on_search_invoices_with_invalid_date_ranges(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1155,8 +1162,8 @@ public function it_throws_exception_on_search_invoices_with_invalid_date_ranges(
             ->searchInvoices();
     }
 
-    /** @test */
-    public function it_throws_exception_on_search_invoices_with_invalid_date_range_type()
+    #[Test]
+    public function it_throws_exception_on_search_invoices_with_invalid_date_range_type(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1178,8 +1185,8 @@ public function it_throws_exception_on_search_invoices_with_invalid_date_range_t
             ->searchInvoices();
     }
 
-    /** @test */
-    public function it_can_get_user_profile_details()
+    #[Test]
+    public function it_can_get_user_profile_details(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1197,8 +1204,8 @@ public function it_can_get_user_profile_details()
         $this->assertArrayHasKey('address', $response);
     }
 
-    /** @test */
-    public function it_can_get_list_users()
+    #[Test]
+    public function it_can_get_list_users(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1216,7 +1223,7 @@ public function it_can_get_list_users()
         $this->assertArrayHasKey('Resources', $response);
     }
 
-    /** @test */
+    #[Test]
     public function it_can_get_user_details()
     {
         $this->client->setAccessToken([
@@ -1237,8 +1244,8 @@ public function it_can_get_user_details()
         $this->assertArrayHasKey('userName', $response);
     }
 
-    /** @test */
-    public function it_can_deleta_a_user()
+    #[Test]
+    public function it_can_deleta_a_user(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1256,8 +1263,8 @@ public function it_can_deleta_a_user()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_create_merchant_applications()
+    #[Test]
+    public function it_can_create_merchant_applications(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1289,8 +1296,8 @@ public function it_can_create_merchant_applications()
         $this->assertArrayHasKey('redirect_uris', $response);
     }
 
-    /** @test */
-    public function it_can_set_account_properties()
+    #[Test]
+    public function it_can_set_account_properties(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1306,8 +1313,8 @@ public function it_can_set_account_properties()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_disable_account_properties()
+    #[Test]
+    public function it_can_disable_account_properties(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1325,8 +1332,8 @@ public function it_can_disable_account_properties()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_get_client_token()
+    #[Test]
+    public function it_can_get_client_token(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1344,8 +1351,8 @@ public function it_can_get_client_token()
         $this->assertArrayHasKey('client_token', $response);
     }
 
-    /** @test  */
-    public function it_can_create_orders()
+    #[Test]
+    public function it_can_create_orders(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1367,8 +1374,8 @@ public function it_can_create_orders()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test  */
-    public function it_can_update_orders()
+    #[Test]
+    public function it_can_update_orders(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1389,8 +1396,8 @@ public function it_can_update_orders()
         $this->assertNotEmpty($response);
     }
 
-    /** @test  */
-    public function it_can_get_order_details()
+    #[Test]
+    public function it_can_get_order_details(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1415,8 +1422,8 @@ public function it_can_get_order_details()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test  */
-    public function it_can_authorize_payment_for_an_order()
+    #[Test]
+    public function it_can_authorize_payment_for_an_order(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1439,8 +1446,8 @@ public function it_can_authorize_payment_for_an_order()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_create_partner_referral()
+    #[Test]
+    public function it_can_create_partner_referral(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1460,8 +1467,8 @@ public function it_can_create_partner_referral()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_get_referral_details()
+    #[Test]
+    public function it_can_get_referral_details(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1482,8 +1489,8 @@ public function it_can_get_referral_details()
         $this->assertArrayHasKey('referral_data', $response);
     }
 
-    /** @test */
-    public function it_can_list_seller_tracking_information()
+    #[Test]
+    public function it_can_list_seller_tracking_information(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1505,8 +1512,8 @@ public function it_can_list_seller_tracking_information()
         $this->assertArrayHasKey('tracking_id', $response);
     }
 
-    /** @test */
-    public function it_can_show_seller_status()
+    #[Test]
+    public function it_can_show_seller_status(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1527,8 +1534,8 @@ public function it_can_show_seller_status()
         $this->assertArrayHasKey('merchant_id', $response);
     }
 
-    /** @test */
-    public function it_can_list_merchant_credentials()
+    #[Test]
+    public function it_can_list_merchant_credentials(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1549,8 +1556,8 @@ public function it_can_list_merchant_credentials()
         $this->assertArrayHasKey('payer_id', $response);
     }
 
-    /** @test */
-    public function it_can_list_web_experience_profiles()
+    #[Test]
+    public function it_can_list_web_experience_profiles(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1569,8 +1576,8 @@ public function it_can_list_web_experience_profiles()
         $this->assertArrayHasKey('id', collect($response)->first());
     }
 
-    /** @test */
-    public function it_can_create_web_experience_profile()
+    #[Test]
+    public function it_can_create_web_experience_profile(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1591,8 +1598,8 @@ public function it_can_create_web_experience_profile()
         $this->assertArrayHasKey('name', $response);
     }
 
-    /** @test */
-    public function it_can_delete_web_experience_profile()
+    #[Test]
+    public function it_can_delete_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -1612,8 +1619,8 @@ public function it_can_delete_web_experience_profile()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_partially_update_web_experience_profile()
+    #[Test]
+    public function it_can_partially_update_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -1633,8 +1640,8 @@ public function it_can_partially_update_web_experience_profile()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_fully_update_web_experience_profile()
+    #[Test]
+    public function it_can_fully_update_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -1654,8 +1661,8 @@ public function it_can_fully_update_web_experience_profile()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_get_web_experience_profile_details()
+    #[Test]
+    public function it_can_get_web_experience_profile_details(): void
     {
         $expectedResponse = $this->mockWebProfileResponse();
 
@@ -1676,8 +1683,8 @@ public function it_can_get_web_experience_profile_details()
         $this->assertArrayHasKey('name', $response);
     }
 
-    /** @test  */
-    public function it_can_capture_payment_for_an_order()
+    #[Test]
+    public function it_can_capture_payment_for_an_order(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1700,8 +1707,8 @@ public function it_can_capture_payment_for_an_order()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_an_authorized_payment()
+    #[Test]
+    public function it_can_show_details_for_an_authorized_payment(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1720,8 +1727,8 @@ public function it_can_show_details_for_an_authorized_payment()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_capture_an_authorized_payment()
+    #[Test]
+    public function it_can_capture_an_authorized_payment(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1745,8 +1752,8 @@ public function it_can_capture_an_authorized_payment()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_reauthorize_an_authorized_payment()
+    #[Test]
+    public function it_can_reauthorize_an_authorized_payment(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1765,8 +1772,8 @@ public function it_can_reauthorize_an_authorized_payment()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_void_an_authorized_payment()
+    #[Test]
+    public function it_can_void_an_authorized_payment(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1782,8 +1789,8 @@ public function it_can_void_an_authorized_payment()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_captured_payment()
+    #[Test]
+    public function it_can_show_details_for_a_captured_payment(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1802,8 +1809,8 @@ public function it_can_show_details_for_a_captured_payment()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_refund_a_captured_payment()
+    #[Test]
+    public function it_can_refund_a_captured_payment(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1827,8 +1834,8 @@ public function it_can_refund_a_captured_payment()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_refund()
+    #[Test]
+    public function it_can_show_details_for_a_refund(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -1847,8 +1854,8 @@ public function it_can_show_details_for_a_refund()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_create_batch_payout()
+    #[Test]
+    public function it_can_create_batch_payout(): void
     {
         $expectedResponse = $this->mockCreateBatchPayoutResponse();
 
@@ -1869,8 +1876,8 @@ public function it_can_create_batch_payout()
         $this->assertArrayHasKey('batch_header', $response);
     }
 
-    /** @test */
-    public function it_can_show_batch_payout_details()
+    #[Test]
+    public function it_can_show_batch_payout_details(): void
     {
         $expectedResponse = $this->showBatchPayoutResponse();
 
@@ -1892,8 +1899,8 @@ public function it_can_show_batch_payout_details()
         $this->assertArrayHasKey('items', $response);
     }
 
-    /** @test */
-    public function it_can_show_batch_payout_item_details()
+    #[Test]
+    public function it_can_show_batch_payout_item_details(): void
     {
         $expectedResponse = $this->showBatchPayoutItemResponse();
 
@@ -1916,8 +1923,8 @@ public function it_can_show_batch_payout_item_details()
         $this->assertArrayHasKey('payout_item', $response);
     }
 
-    /** @test */
-    public function it_can_cancel_unclaimed_batch_payout_item()
+    #[Test]
+    public function it_can_cancel_unclaimed_batch_payout_item(): void
     {
         $expectedResponse = $this->mockCancelUnclaimedBatchItemResponse();
 
@@ -1940,8 +1947,8 @@ public function it_can_cancel_unclaimed_batch_payout_item()
         $this->assertArrayHasKey('payout_item', $response);
     }
 
-    /** @test */
-    public function it_can_create_referenced_batch_payout()
+    #[Test]
+    public function it_can_create_referenced_batch_payout(): void
     {
         $expectedResponse = $this->mockCreateReferencedBatchPayoutResponse();
 
@@ -1965,8 +1972,8 @@ public function it_can_create_referenced_batch_payout()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_list_items_referenced_in_batch_payout()
+    #[Test]
+    public function it_can_list_items_referenced_in_batch_payout(): void
     {
         $expectedResponse = $this->mockShowReferencedBatchPayoutResponse();
 
@@ -1987,8 +1994,8 @@ public function it_can_list_items_referenced_in_batch_payout()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_create_referenced_batch_payout_item()
+    #[Test]
+    public function it_can_create_referenced_batch_payout_item(): void
     {
         $expectedResponse = $this->mockCreateReferencedBatchPayoutItemResponse();
 
@@ -2012,8 +2019,8 @@ public function it_can_create_referenced_batch_payout_item()
         $this->assertArrayHasKey('links', $response);
     }
 
-    /** @test */
-    public function it_can_show_referenced_payout_item_details()
+    #[Test]
+    public function it_can_show_referenced_payout_item_details(): void
     {
         $expectedResponse = $this->mockShowReferencedBatchPayoutItemResponse();
 
@@ -2036,8 +2043,8 @@ public function it_can_show_referenced_payout_item_details()
         $this->assertArrayHasKey('reference_id', $response);
     }
 
-    /** @test */
-    public function it_can_list_transactions()
+    #[Test]
+    public function it_can_list_transactions(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2061,8 +2068,8 @@ public function it_can_list_transactions()
         $this->assertGreaterThan(0, sizeof($response['transaction_details']));
     }
 
-    /** @test */
-    public function it_can_list_account_balances()
+    #[Test]
+    public function it_can_list_account_balances(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2082,8 +2089,8 @@ public function it_can_list_account_balances()
         $this->assertNotEmpty($response);
     }
 
-    /** @test */
-    public function it_can_list_account_balances_for_a_different_currency()
+    #[Test]
+    public function it_can_list_account_balances_for_a_different_currency(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2103,8 +2110,8 @@ public function it_can_list_account_balances_for_a_different_currency()
         $this->assertNotEmpty($response);
     }
 
-    /** @test */
-    public function it_can_create_a_subscription()
+    #[Test]
+    public function it_can_create_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2125,8 +2132,8 @@ public function it_can_create_a_subscription()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_update_a_subscription()
+    #[Test]
+    public function it_can_update_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2144,8 +2151,8 @@ public function it_can_update_a_subscription()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_subscription()
+    #[Test]
+    public function it_can_show_details_for_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2164,8 +2171,8 @@ public function it_can_show_details_for_a_subscription()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_activate_a_subscription()
+    #[Test]
+    public function it_can_activate_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2181,8 +2188,8 @@ public function it_can_activate_a_subscription()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_cancel_a_subscription()
+    #[Test]
+    public function it_can_cancel_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2198,7 +2205,7 @@ public function it_can_cancel_a_subscription()
         $this->assertEmpty($response);
     }
 
-    /** @test */
+    #[Test]
     public function it_can_suspend_a_subscription()
     {
         $this->client->setAccessToken([
@@ -2215,8 +2222,8 @@ public function it_can_suspend_a_subscription()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_capture_payment_for_a_subscription()
+    #[Test]
+    public function it_can_capture_payment_for_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2232,8 +2239,8 @@ public function it_can_capture_payment_for_a_subscription()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_update_quantity_or_product_for_a_subscription()
+    #[Test]
+    public function it_can_update_quantity_or_product_for_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2254,8 +2261,8 @@ public function it_can_update_quantity_or_product_for_a_subscription()
         $this->assertArrayHasKey('plan_id', $response);
     }
 
-    /** @test */
-    public function it_can_list_transactions_for_a_subscription()
+    #[Test]
+    public function it_can_list_transactions_for_a_subscription(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2274,8 +2281,8 @@ public function it_can_list_transactions_for_a_subscription()
         $this->assertEquals($response, $this->mockListSubscriptionTransactionsResponse());
     }
 
-    /** @test */
-    public function it_can_list_tracking_details()
+    #[Test]
+    public function it_can_list_tracking_details(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2296,8 +2303,8 @@ public function it_can_list_tracking_details()
         $this->assertArrayHasKey('tracking_number', $response);
     }
 
-    /** @test */
-    public function it_can_get_tracking_details_for_tracking_id()
+    #[Test]
+    public function it_can_get_tracking_details_for_tracking_id(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2317,8 +2324,8 @@ public function it_can_get_tracking_details_for_tracking_id()
         $this->assertArrayHasKey('tracking_number', $response);
     }
 
-    /** @test */
-    public function it_can_update_tracking_details_for_tracking_id()
+    #[Test]
+    public function it_can_update_tracking_details_for_tracking_id(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2337,8 +2344,8 @@ public function it_can_update_tracking_details_for_tracking_id()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_create_tracking_in_batches()
+    #[Test]
+    public function it_can_create_tracking_in_batches(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2359,8 +2366,8 @@ public function it_can_create_tracking_in_batches()
         $this->assertArrayHasKey('tracker_identifiers', $response);
     }
 
-    /** @test */
-    public function it_can_create_single_tracking_for_single_transaction()
+    #[Test]
+    public function it_can_create_single_tracking_for_single_transaction(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2381,8 +2388,8 @@ public function it_can_create_single_tracking_for_single_transaction()
         $this->assertArrayHasKey('tracker_identifiers', $response);
     }
 
-    /** @test */
-    public function it_can_list_web_hooks_event_types()
+    #[Test]
+    public function it_can_list_web_hooks_event_types(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2401,8 +2408,8 @@ public function it_can_list_web_hooks_event_types()
         $this->assertArrayHasKey('event_types', $response);
     }
 
-    /** @test */
-    public function it_can_list_web_hooks_events()
+    #[Test]
+    public function it_can_list_web_hooks_events(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2421,8 +2428,8 @@ public function it_can_list_web_hooks_events()
         $this->assertArrayHasKey('events', $response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_web_hooks_event()
+    #[Test]
+    public function it_can_show_details_for_a_web_hooks_event(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2441,8 +2448,8 @@ public function it_can_show_details_for_a_web_hooks_event()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_resend_notification_for_a_web_hooks_event()
+    #[Test]
+    public function it_can_resend_notification_for_a_web_hooks_event(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2463,8 +2470,8 @@ public function it_can_resend_notification_for_a_web_hooks_event()
         $this->assertArrayHasKey('id', $response);
     }
 
-    /** @test */
-    public function it_can_create_a_web_hook()
+    #[Test]
+    public function it_can_create_a_web_hook(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2486,8 +2493,8 @@ public function it_can_create_a_web_hook()
         $this->assertArrayHasKey('event_types', $response);
     }
 
-    /** @test */
-    public function it_can_list_web_hooks()
+    #[Test]
+    public function it_can_list_web_hooks(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2506,8 +2513,8 @@ public function it_can_list_web_hooks()
         $this->assertArrayHasKey('webhooks', $response);
     }
 
-    /** @test */
-    public function it_can_delete_a_web_hook()
+    #[Test]
+    public function it_can_delete_a_web_hook(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2523,8 +2530,8 @@ public function it_can_delete_a_web_hook()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_update_a_web_hook()
+    #[Test]
+    public function it_can_update_a_web_hook(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2545,8 +2552,8 @@ public function it_can_update_a_web_hook()
         $this->assertArrayHasKey('event_types', $response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_web_hook()
+    #[Test]
+    public function it_can_show_details_for_a_web_hook(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2565,8 +2572,8 @@ public function it_can_show_details_for_a_web_hook()
         $this->assertArrayHasKey('event_types', $response);
     }
 
-    /** @test */
-    public function it_can_list_events_for_web_hooks()
+    #[Test]
+    public function it_can_list_events_for_web_hooks(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2585,8 +2592,8 @@ public function it_can_list_events_for_web_hooks()
         $this->assertArrayHasKey('event_types', $response);
     }
 
-    /** @test */
-    public function it_can_verify_web_hook_signature()
+    #[Test]
+    public function it_can_verify_web_hook_signature(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2607,8 +2614,8 @@ public function it_can_verify_web_hook_signature()
         $this->assertArrayHasKey('verification_status', $response);
     }
 
-    /** @test */
-    public function it_can_list_payment_methods_source_tokens()
+    #[Test]
+    public function it_can_list_payment_methods_source_tokens(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2628,8 +2635,8 @@ public function it_can_list_payment_methods_source_tokens()
         $this->assertArrayHasKey('payment_tokens', $response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_payment_method_source_token()
+    #[Test]
+    public function it_can_show_details_for_payment_method_source_token(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2650,8 +2657,8 @@ public function it_can_show_details_for_payment_method_source_token()
         $this->assertArrayHasKey('payment_source', $response);
     }
 
-    /** @test */
-    public function it_can_delete_a_payment_method_source_token()
+    #[Test]
+    public function it_can_delete_a_payment_method_source_token(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -2667,8 +2674,8 @@ public function it_can_delete_a_payment_method_source_token()
         $this->assertEmpty($response);
     }
 
-    /** @test */
-    public function it_can_show_details_for_payment_setup_token()
+    #[Test]
+    public function it_can_show_details_for_payment_setup_token(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
diff --git a/tests/Feature/AdapterOrdersHelperTest.php b/tests/Feature/AdapterOrdersHelperTest.php
index e25ee6f4..1cbc0c53 100644
--- a/tests/Feature/AdapterOrdersHelperTest.php
+++ b/tests/Feature/AdapterOrdersHelperTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Feature;
 
 use Carbon\Carbon;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -16,10 +17,10 @@ class AdapterOrdersHelperTest extends TestCase
     use MockResponsePayloads;
 
     /** @var string */
-    protected static $access_token = '';
+    protected static string $access_token = '';
 
-    /** @var \Srmklive\PayPal\Services\PayPal */
-    protected $client;
+    /** @var PayPalClient */
+    protected PayPalClient $client;
 
     protected function setUp(): void
     {
@@ -37,8 +38,8 @@ protected function setUp(): void
         parent::setUp();
     }
 
-    /** @test */
-    public function it_can_confirm_payment_for_an_order()
+    #[Test]
+    public function it_can_confirm_payment_for_an_order(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
diff --git a/tests/Feature/AdapterPaymentMethodTokensHelpersTest.php b/tests/Feature/AdapterPaymentMethodTokensHelpersTest.php
index 79fdfbb4..f981abc4 100644
--- a/tests/Feature/AdapterPaymentMethodTokensHelpersTest.php
+++ b/tests/Feature/AdapterPaymentMethodTokensHelpersTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Feature;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -15,10 +16,10 @@ class AdapterPaymentMethodTokensHelpersTest extends TestCase
     use MockResponsePayloads;
 
     /** @var string */
-    protected static $access_token = '';
+    protected static string $access_token = '';
 
-    /** @var \Srmklive\PayPal\Services\PayPal */
-    protected $client;
+    /** @var PayPalClient */
+    protected PayPalClient $client;
 
     protected function setUp(): void
     {
@@ -36,8 +37,8 @@ protected function setUp(): void
         parent::setUp();
     }
 
-    /** @test */
-    public function it_can_create_payment_token_from_a_vault_token()
+    #[Test]
+    public function it_can_create_payment_token_from_a_vault_token(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -59,8 +60,8 @@ public function it_can_create_payment_token_from_a_vault_token()
         $this->assertArrayHasKey('customer', $response);
     }
 
-    /** @test */
-    public function it_can_create_payment_source_from_a_vault_token()
+    #[Test]
+    public function it_can_create_payment_source_from_a_vault_token(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -81,8 +82,8 @@ public function it_can_create_payment_source_from_a_vault_token()
         $this->assertArrayHasKey('payment_source', $response);
     }
 
-    /** @test */
-    public function it_can_create_payment_source_from_a_credit_card()
+    #[Test]
+    public function it_can_create_payment_source_from_a_credit_card(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -103,8 +104,8 @@ public function it_can_create_payment_source_from_a_credit_card()
         $this->assertArrayHasKey('payment_source', $response);
     }
 
-    /** @test */
-    public function it_can_create_payment_source_from_a_paypal_account()
+    #[Test]
+    public function it_can_create_payment_source_from_a_paypal_account(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
@@ -127,8 +128,8 @@ public function it_can_create_payment_source_from_a_paypal_account()
         $this->assertArrayHasKey('payment_source', $response);
     }
 
-    /** @test */
-    public function it_can_create_payment_source_from_a_venmo_account()
+    #[Test]
+    public function it_can_create_payment_source_from_a_venmo_account(): void
     {
         $this->client->setAccessToken([
             'access_token'  => self::$access_token,
diff --git a/tests/Unit/Adapter/BillingPlansTest.php b/tests/Unit/Adapter/BillingPlansTest.php
index 9f38f093..75740558 100644
--- a/tests/Unit/Adapter/BillingPlansTest.php
+++ b/tests/Unit/Adapter/BillingPlansTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class BillingPlansTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_billing_plan()
+    #[Test]
+    public function it_can_create_a_billing_plan(): void
     {
         $expectedResponse = $this->mockCreatePlansResponse();
 
@@ -32,8 +33,8 @@ public function it_can_create_a_billing_plan()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams, 'some-request-id'));
     }
 
-    /** @test */
-    public function it_can_list_billing_plans()
+    #[Test]
+    public function it_can_list_billing_plans(): void
     {
         $expectedResponse = $this->mockListPlansResponse();
 
@@ -47,8 +48,8 @@ public function it_can_list_billing_plans()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}(1, 2, true));
     }
 
-    /** @test */
-    public function it_can_update_a_billing_plan()
+    #[Test]
+    public function it_can_update_a_billing_plan(): void
     {
         $expectedResponse = '';
 
@@ -64,8 +65,8 @@ public function it_can_update_a_billing_plan()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('P-7GL4271244454362WXNWU5NQ', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_billing_plan()
+    #[Test]
+    public function it_can_show_details_for_a_billing_plan(): void
     {
         $expectedResponse = $this->mockGetPlansResponse();
 
@@ -79,8 +80,8 @@ public function it_can_show_details_for_a_billing_plan()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('P-7GL4271244454362WXNWU5NQ'));
     }
 
-    /** @test */
-    public function it_can_activate_a_billing_plan()
+    #[Test]
+    public function it_can_activate_a_billing_plan(): void
     {
         $expectedResponse = '';
 
@@ -94,8 +95,8 @@ public function it_can_activate_a_billing_plan()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('P-7GL4271244454362WXNWU5NQ'));
     }
 
-    /** @test */
-    public function it_can_deactivate_a_billing_plan()
+    #[Test]
+    public function it_can_deactivate_a_billing_plan(): void
     {
         $expectedResponse = '';
 
@@ -109,8 +110,8 @@ public function it_can_deactivate_a_billing_plan()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('P-7GL4271244454362WXNWU5NQ'));
     }
 
-    /** @test */
-    public function it_can_update_pricing_for_a_billing_plan()
+    #[Test]
+    public function it_can_update_pricing_for_a_billing_plan(): void
     {
         $expectedResponse = '';
 
diff --git a/tests/Unit/Adapter/CatalogProductsTest.php b/tests/Unit/Adapter/CatalogProductsTest.php
index a9326926..20797583 100644
--- a/tests/Unit/Adapter/CatalogProductsTest.php
+++ b/tests/Unit/Adapter/CatalogProductsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class CatalogProductsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_product()
+    #[Test]
+    public function it_can_create_a_product(): void
     {
         $expectedResponse = $this->mockCreateCatalogProductsResponse();
 
@@ -32,8 +33,8 @@ public function it_can_create_a_product()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_list_products()
+    #[Test]
+    public function it_can_list_products(): void
     {
         $expectedResponse = $this->mockListCatalogProductsResponse();
 
@@ -47,8 +48,8 @@ public function it_can_list_products()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_update_a_product()
+    #[Test]
+    public function it_can_update_a_product(): void
     {
         $expectedResponse = '';
 
@@ -64,8 +65,8 @@ public function it_can_update_a_product()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('72255d4849af8ed6e0df1173', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_get_details_for_a_product()
+    #[Test]
+    public function it_can_get_details_for_a_product(): void
     {
         $expectedResponse = $this->mockGetCatalogProductsResponse();
 
diff --git a/tests/Unit/Adapter/DisputeActionsTest.php b/tests/Unit/Adapter/DisputeActionsTest.php
index af82c35d..ec962968 100644
--- a/tests/Unit/Adapter/DisputeActionsTest.php
+++ b/tests/Unit/Adapter/DisputeActionsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -11,8 +12,8 @@ class DisputeActionsTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_accept_dispute_claim()
+    #[Test]
+    public function it_can_accept_dispute_claim(): void
     {
         $expectedResponse = $this->mockAcceptDisputesClaimResponse();
 
@@ -26,8 +27,8 @@ public function it_can_accept_dispute_claim()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('PP-D-27803', 'Full refund to the customer.'));
     }
 
-    /** @test */
-    public function it_can_accept_dispute_offer_resolution()
+    #[Test]
+    public function it_can_accept_dispute_offer_resolution(): void
     {
         $expectedResponse = $this->mockAcceptDisputesOfferResolutionResponse();
 
@@ -41,8 +42,8 @@ public function it_can_accept_dispute_offer_resolution()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('PP-000-000-651-454', 'I am ok with the refund offered.'));
     }
 
-    /** @test */
-    public function it_can_acknowledge_item_is_returned_for_raised_dispute()
+    #[Test]
+    public function it_can_acknowledge_item_is_returned_for_raised_dispute(): void
     {
         $expectedResponse = $this->mockAcknowledgeItemReturnedResponse();
 
diff --git a/tests/Unit/Adapter/DisputesTest.php b/tests/Unit/Adapter/DisputesTest.php
index b659fa0b..76771c39 100644
--- a/tests/Unit/Adapter/DisputesTest.php
+++ b/tests/Unit/Adapter/DisputesTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class DisputesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_disputes()
+    #[Test]
+    public function it_can_list_disputes(): void
     {
         $expectedResponse = $this->mockListDisputesResponse();
 
@@ -28,8 +29,8 @@ public function it_can_list_disputes()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_partially_update_a_dispute()
+    #[Test]
+    public function it_can_partially_update_a_dispute(): void
     {
         $expectedResponse = '';
 
@@ -45,8 +46,8 @@ public function it_can_partially_update_a_dispute()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('PP-D-27803', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_get_details_for_a_dispute()
+    #[Test]
+    public function it_can_get_details_for_a_dispute(): void
     {
         $expectedResponse = $this->mockGetDisputesResponse();
 
diff --git a/tests/Unit/Adapter/IdentityTest.php b/tests/Unit/Adapter/IdentityTest.php
index 78606de8..0314729b 100644
--- a/tests/Unit/Adapter/IdentityTest.php
+++ b/tests/Unit/Adapter/IdentityTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class IdentityTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_get_user_profile_details()
+    #[Test]
+    public function it_can_get_user_profile_details(): void
     {
         $expectedResponse = $this->mockShowProfileInfoResponse();
 
diff --git a/tests/Unit/Adapter/InvoicesSearchTest.php b/tests/Unit/Adapter/InvoicesSearchTest.php
index 473b203e..c93efcdd 100644
--- a/tests/Unit/Adapter/InvoicesSearchTest.php
+++ b/tests/Unit/Adapter/InvoicesSearchTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class InvoicesSearchTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_search_invoices()
+    #[Test]
+    public function it_can_search_invoices(): void
     {
         $expectedResponse = $this->mockSearchInvoicesResponse();
 
@@ -28,8 +29,8 @@ public function it_can_search_invoices()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}(1, 1, true));
     }
 
-    /** @test */
-    public function it_can_search_invoices_with_custom_filters()
+    #[Test]
+    public function it_can_search_invoices_with_custom_filters(): void
     {
         $expectedResponse = $this->mockSearchInvoicesResponse();
 
diff --git a/tests/Unit/Adapter/InvoicesTemplatesTest.php b/tests/Unit/Adapter/InvoicesTemplatesTest.php
index d62013a3..feaf2f16 100644
--- a/tests/Unit/Adapter/InvoicesTemplatesTest.php
+++ b/tests/Unit/Adapter/InvoicesTemplatesTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class InvoicesTemplatesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_invoice_template()
+    #[Test]
+    public function it_can_create_invoice_template(): void
     {
         $expectedResponse = $this->mockCreateInvoiceTemplateResponse();
 
@@ -30,8 +31,8 @@ public function it_can_create_invoice_template()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_list_invoice_templates()
+    #[Test]
+    public function it_can_list_invoice_templates(): void
     {
         $expectedResponse = $this->mockListInvoiceTemplateResponse();
 
@@ -45,8 +46,8 @@ public function it_can_list_invoice_templates()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_delete_an_invoice_template()
+    #[Test]
+    public function it_can_delete_an_invoice_template(): void
     {
         $expectedResponse = '';
 
@@ -60,8 +61,8 @@ public function it_can_delete_an_invoice_template()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('TEMP-19V05281TU309413B'));
     }
 
-    /** @test */
-    public function it_can_update_an_invoice_template()
+    #[Test]
+    public function it_can_update_an_invoice_template(): void
     {
         $expectedResponse = $this->mockUpdateInvoiceTemplateResponse();
 
@@ -77,8 +78,8 @@ public function it_can_update_an_invoice_template()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('TEMP-19V05281TU309413B', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_get_details_for_an_invoice_template()
+    #[Test]
+    public function it_can_get_details_for_an_invoice_template(): void
     {
         $expectedResponse = $this->mockGetInvoiceTemplateResponse();
 
diff --git a/tests/Unit/Adapter/InvoicesTest.php b/tests/Unit/Adapter/InvoicesTest.php
index e0829bdd..e2be7b45 100644
--- a/tests/Unit/Adapter/InvoicesTest.php
+++ b/tests/Unit/Adapter/InvoicesTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class InvoicesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_generate_unique_invoice_number()
+    #[Test]
+    public function it_can_generate_unique_invoice_number(): void
     {
         $expectedResponse = $this->mockGenerateInvoiceNumberResponse();
 
@@ -28,8 +29,8 @@ public function it_can_generate_unique_invoice_number()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_create_a_draft_invoice()
+    #[Test]
+    public function it_can_create_a_draft_invoice(): void
     {
         $expectedResponse = $this->mockCreateInvoicesResponse();
 
@@ -45,8 +46,8 @@ public function it_can_create_a_draft_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_list_current_invoices()
+    #[Test]
+    public function it_can_list_current_invoices(): void
     {
         $expectedResponse = $this->mockListInvoicesResponse();
 
@@ -60,8 +61,8 @@ public function it_can_list_current_invoices()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_delete_an_invoice()
+    #[Test]
+    public function it_can_delete_an_invoice(): void
     {
         $expectedResponse = '';
 
@@ -75,8 +76,8 @@ public function it_can_delete_an_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5'));
     }
 
-    /** @test */
-    public function it_can_update_an_invoice()
+    #[Test]
+    public function it_can_update_an_invoice(): void
     {
         $expectedResponse = $this->mockUpdateInvoicesResponse();
 
@@ -92,8 +93,8 @@ public function it_can_update_an_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_show_details_for_an_invoice()
+    #[Test]
+    public function it_can_show_details_for_an_invoice(): void
     {
         $expectedResponse = $this->mockGetInvoicesResponse();
 
@@ -107,8 +108,8 @@ public function it_can_show_details_for_an_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5'));
     }
 
-    /** @test */
-    public function it_can_cancel_an_invoice()
+    #[Test]
+    public function it_can_cancel_an_invoice(): void
     {
         $expectedResponse = '';
 
@@ -134,8 +135,8 @@ public function it_can_cancel_an_invoice()
         ));
     }
 
-    /** @test */
-    public function it_can_generate_qr_code_for_invoice()
+    #[Test]
+    public function it_can_generate_qr_code_for_invoice(): void
     {
         $expectedResponse = $this->mockGenerateInvoiceQRCodeResponse();
 
@@ -149,8 +150,8 @@ public function it_can_generate_qr_code_for_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5', 400, 400));
     }
 
-    /** @test */
-    public function it_can_register_payment_for_invoice()
+    #[Test]
+    public function it_can_register_payment_for_invoice(): void
     {
         $expectedResponse = $this->mockInvoiceRegisterPaymentResponse();
 
@@ -164,8 +165,8 @@ public function it_can_register_payment_for_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5', '2018-05-01', 'BANK_TRANSFER', 10.00));
     }
 
-    /** @test */
-    public function it_can_delete_payment_for_invoice()
+    #[Test]
+    public function it_can_delete_payment_for_invoice(): void
     {
         $expectedResponse = '';
 
@@ -179,8 +180,8 @@ public function it_can_delete_payment_for_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5', 'EXTR-86F38350LX4353815'));
     }
 
-    /** @test */
-    public function it_can_refund_payment_for_invoice()
+    #[Test]
+    public function it_can_refund_payment_for_invoice(): void
     {
         $expectedResponse = $this->mockInvoiceRefundPaymentResponse();
 
@@ -194,8 +195,8 @@ public function it_can_refund_payment_for_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5', '2018-05-01', 'BANK_TRANSFER', 5.00));
     }
 
-    /** @test */
-    public function it_can_delete_refund_for_invoice()
+    #[Test]
+    public function it_can_delete_refund_for_invoice(): void
     {
         $expectedResponse = '';
 
@@ -209,8 +210,8 @@ public function it_can_delete_refund_for_invoice()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('INV2-Z56S-5LLA-Q52L-CPZ5', 'EXTR-2LG703375E477444T'));
     }
 
-    /** @test */
-    public function it_can_send_an_invoice()
+    #[Test]
+    public function it_can_send_an_invoice(): void
     {
         $expectedResponse = '';
 
@@ -234,8 +235,8 @@ public function it_can_send_an_invoice()
         ));
     }
 
-    /** @test */
-    public function it_can_send_reminder_for_an_invoice()
+    #[Test]
+    public function it_can_send_reminder_for_an_invoice(): void
     {
         $expectedResponse = '';
 
diff --git a/tests/Unit/Adapter/OrdersTest.php b/tests/Unit/Adapter/OrdersTest.php
index 572f1ce7..e1377e0a 100644
--- a/tests/Unit/Adapter/OrdersTest.php
+++ b/tests/Unit/Adapter/OrdersTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class OrdersTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_an_order()
+    #[Test]
+    public function it_can_create_an_order(): void
     {
         $expectedResponse = $this->mockCreateOrdersResponse();
 
@@ -30,8 +31,8 @@ public function it_can_create_an_order()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_update_an_order()
+    #[Test]
+    public function it_can_update_an_order(): void
     {
         $expectedResponse = '';
 
diff --git a/tests/Unit/Adapter/PartnerReferralsTest.php b/tests/Unit/Adapter/PartnerReferralsTest.php
index 9d67fa27..0ae469fc 100644
--- a/tests/Unit/Adapter/PartnerReferralsTest.php
+++ b/tests/Unit/Adapter/PartnerReferralsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class PartnerReferralsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_partner_referral()
+    #[Test]
+    public function it_can_create_partner_referral(): void
     {
         $expectedResponse = $this->mockCreatePartnerReferralsResponse();
 
@@ -30,8 +31,8 @@ public function it_can_create_partner_referral()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_get_referral_details()
+    #[Test]
+    public function it_can_get_referral_details(): void
     {
         $expectedResponse = $this->mockShowReferralDataResponse();
 
diff --git a/tests/Unit/Adapter/PaymentAuthorizationsTest.php b/tests/Unit/Adapter/PaymentAuthorizationsTest.php
index 8769f377..181b4f52 100644
--- a/tests/Unit/Adapter/PaymentAuthorizationsTest.php
+++ b/tests/Unit/Adapter/PaymentAuthorizationsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -11,8 +12,8 @@ class PaymentAuthorizationsTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_show_details_for_an_authorized_payment()
+    #[Test]
+    public function it_can_show_details_for_an_authorized_payment(): void
     {
         $expectedResponse = $this->mockGetAuthorizedPaymentDetailsResponse();
 
@@ -26,8 +27,8 @@ public function it_can_show_details_for_an_authorized_payment()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('0VF52814937998046'));
     }
 
-    /** @test */
-    public function it_can_capture_an_authorized_payment()
+    #[Test]
+    public function it_can_capture_an_authorized_payment(): void
     {
         $expectedResponse = $this->mockCaptureAuthorizedPaymentResponse();
 
@@ -46,8 +47,8 @@ public function it_can_capture_an_authorized_payment()
         ));
     }
 
-    /** @test */
-    public function it_can_reauthorize_an_authorized_payment()
+    #[Test]
+    public function it_can_reauthorize_an_authorized_payment(): void
     {
         $expectedResponse = $this->mockReAuthorizeAuthorizedPaymentResponse();
 
@@ -61,8 +62,8 @@ public function it_can_reauthorize_an_authorized_payment()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('0VF52814937998046', 10.99));
     }
 
-    /** @test */
-    public function it_can_void_an_authorized_payment()
+    #[Test]
+    public function it_can_void_an_authorized_payment(): void
     {
         $expectedResponse = '';
 
diff --git a/tests/Unit/Adapter/PaymentCapturesTest.php b/tests/Unit/Adapter/PaymentCapturesTest.php
index f052e53b..550c005b 100644
--- a/tests/Unit/Adapter/PaymentCapturesTest.php
+++ b/tests/Unit/Adapter/PaymentCapturesTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -11,8 +12,8 @@ class PaymentCapturesTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_show_details_for_a_captured_payment()
+    #[Test]
+    public function it_can_show_details_for_a_captured_payment(): void
     {
         $expectedResponse = $this->mockGetCapturedPaymentDetailsResponse();
 
@@ -26,8 +27,8 @@ public function it_can_show_details_for_a_captured_payment()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('2GG279541U471931P'));
     }
 
-    /** @test */
-    public function it_can_refund_a_captured_payment()
+    #[Test]
+    public function it_can_refund_a_captured_payment(): void
     {
         $expectedResponse = $this->mockRefundCapturedPaymentResponse();
 
diff --git a/tests/Unit/Adapter/PaymentExperienceWebProfilesTest.php b/tests/Unit/Adapter/PaymentExperienceWebProfilesTest.php
index d0f5c454..3963ced2 100644
--- a/tests/Unit/Adapter/PaymentExperienceWebProfilesTest.php
+++ b/tests/Unit/Adapter/PaymentExperienceWebProfilesTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class PaymentExperienceWebProfilesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_web_experience_profiles()
+    #[Test]
+    public function it_can_list_web_experience_profiles(): void
     {
         $expectedResponse = $this->mockListWebProfilesResponse();
 
@@ -28,8 +29,8 @@ public function it_can_list_web_experience_profiles()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_create_web_experience_profile()
+    #[Test]
+    public function it_can_create_web_experience_profile(): void
     {
         $expectedResponse = $this->mockWebProfileResponse();
 
@@ -47,8 +48,8 @@ public function it_can_create_web_experience_profile()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_delete_web_experience_profile()
+    #[Test]
+    public function it_can_delete_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -64,8 +65,8 @@ public function it_can_delete_web_experience_profile()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_partially_update_web_experience_profile()
+    #[Test]
+    public function it_can_partially_update_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -81,8 +82,8 @@ public function it_can_partially_update_web_experience_profile()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('XP-A88A-LYLW-8Y3X-E5ER', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_fully_update_web_experience_profile()
+    #[Test]
+    public function it_can_fully_update_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -98,8 +99,8 @@ public function it_can_fully_update_web_experience_profile()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('XP-A88A-LYLW-8Y3X-E5ER', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_get_web_experience_profile_details()
+    #[Test]
+    public function it_can_get_web_experience_profile_details(): void
     {
         $expectedResponse = $this->mockWebProfileResponse();
 
diff --git a/tests/Unit/Adapter/PaymentRefundsTest.php b/tests/Unit/Adapter/PaymentRefundsTest.php
index 20b0d22f..faa4b9c6 100644
--- a/tests/Unit/Adapter/PaymentRefundsTest.php
+++ b/tests/Unit/Adapter/PaymentRefundsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -11,8 +12,8 @@ class PaymentRefundsTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_show_details_for_a_refund()
+    #[Test]
+    public function it_can_show_details_for_a_refund(): void
     {
         $expectedResponse = $this->mockGetRefundDetailsResponse();
 
diff --git a/tests/Unit/Adapter/PayoutsTest.php b/tests/Unit/Adapter/PayoutsTest.php
index da4a79ca..152e72d7 100644
--- a/tests/Unit/Adapter/PayoutsTest.php
+++ b/tests/Unit/Adapter/PayoutsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class PayoutsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_batch_payout()
+    #[Test]
+    public function it_can_create_batch_payout(): void
     {
         $expectedResponse = $this->mockCreateBatchPayoutResponse();
 
@@ -30,8 +31,8 @@ public function it_can_create_batch_payout()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_show_batch_payout_details()
+    #[Test]
+    public function it_can_show_batch_payout_details(): void
     {
         $expectedResponse = $this->showBatchPayoutResponse();
 
@@ -47,8 +48,8 @@ public function it_can_show_batch_payout_details()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_show_batch_payout_item_details()
+    #[Test]
+    public function it_can_show_batch_payout_item_details(): void
     {
         $expectedResponse = $this->showBatchPayoutItemResponse();
 
@@ -64,8 +65,8 @@ public function it_can_show_batch_payout_item_details()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_cancel_unclaimed_batch_payout_item()
+    #[Test]
+    public function it_can_cancel_unclaimed_batch_payout_item(): void
     {
         $expectedResponse = $this->mockCancelUnclaimedBatchItemResponse();
 
diff --git a/tests/Unit/Adapter/ReferencedPayoutsTest.php b/tests/Unit/Adapter/ReferencedPayoutsTest.php
index 0a184a73..c10d7bd9 100644
--- a/tests/Unit/Adapter/ReferencedPayoutsTest.php
+++ b/tests/Unit/Adapter/ReferencedPayoutsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class ReferencedPayoutsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_referenced_batch_payout()
+    #[Test]
+    public function it_can_create_referenced_batch_payout(): void
     {
         $expectedResponse = $this->mockCreateReferencedBatchPayoutResponse();
 
@@ -35,8 +36,8 @@ public function it_can_create_referenced_batch_payout()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_list_items_referenced_in_batch_payout()
+    #[Test]
+    public function it_can_list_items_referenced_in_batch_payout(): void
     {
         $expectedResponse = $this->mockShowReferencedBatchPayoutResponse();
 
@@ -52,8 +53,8 @@ public function it_can_list_items_referenced_in_batch_payout()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_create_referenced_batch_payout_item()
+    #[Test]
+    public function it_can_create_referenced_batch_payout_item(): void
     {
         $expectedResponse = $this->mockCreateReferencedBatchPayoutItemResponse();
 
@@ -74,8 +75,8 @@ public function it_can_create_referenced_batch_payout_item()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_show_referenced_payout_item_details()
+    #[Test]
+    public function it_can_show_referenced_payout_item_details(): void
     {
         $expectedResponse = $this->mockShowReferencedBatchPayoutItemResponse();
 
diff --git a/tests/Unit/Adapter/ReportingTest.php b/tests/Unit/Adapter/ReportingTest.php
index 07c5182a..7f307057 100644
--- a/tests/Unit/Adapter/ReportingTest.php
+++ b/tests/Unit/Adapter/ReportingTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
 use Carbon\Carbon;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -12,8 +13,8 @@ class ReportingTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_transactions()
+    #[Test]
+    public function it_can_list_transactions(): void
     {
         $expectedResponse = $this->mockListTransactionsResponse();
 
@@ -32,8 +33,8 @@ public function it_can_list_transactions()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($filters));
     }
 
-    /** @test */
-    public function it_can_list_balances()
+    #[Test]
+    public function it_can_list_balances(): void
     {
         $expectedResponse = $this->mockListBalancesResponse();
 
diff --git a/tests/Unit/Adapter/SubscriptionsTest.php b/tests/Unit/Adapter/SubscriptionsTest.php
index ea00843a..cd1f75d5 100644
--- a/tests/Unit/Adapter/SubscriptionsTest.php
+++ b/tests/Unit/Adapter/SubscriptionsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class SubscriptionsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_subscription()
+    #[Test]
+    public function it_can_create_a_subscription(): void
     {
         $expectedResponse = $this->mockCreateSubscriptionResponse();
 
@@ -30,8 +31,8 @@ public function it_can_create_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_update_a_subscription()
+    #[Test]
+    public function it_can_update_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -47,8 +48,8 @@ public function it_can_update_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('I-BW452GLLEP1G', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_subscription()
+    #[Test]
+    public function it_can_show_details_for_a_subscription(): void
     {
         $expectedResponse = $this->mockGetSubscriptionDetailsResponse();
 
@@ -62,8 +63,8 @@ public function it_can_show_details_for_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('I-BW452GLLEP1G'));
     }
 
-    /** @test */
-    public function it_can_activate_a_subscription()
+    #[Test]
+    public function it_can_activate_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -77,8 +78,8 @@ public function it_can_activate_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('I-BW452GLLEP1G', 'Reactivating the subscription'));
     }
 
-    /** @test */
-    public function it_can_cancel_a_subscription()
+    #[Test]
+    public function it_can_cancel_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -92,8 +93,8 @@ public function it_can_cancel_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('I-BW452GLLEP1G', 'Not satisfied with the service'));
     }
 
-    /** @test */
-    public function it_can_suspend_a_subscription()
+    #[Test]
+    public function it_can_suspend_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -107,8 +108,8 @@ public function it_can_suspend_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('I-BW452GLLEP1G', 'Item out of stock'));
     }
 
-    /** @test */
-    public function it_can_capture_payment_for_a_subscription()
+    #[Test]
+    public function it_can_capture_payment_for_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -122,8 +123,8 @@ public function it_can_capture_payment_for_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('I-BW452GLLEP1G', 'Charging as the balance reached the limit', 100));
     }
 
-    /** @test */
-    public function it_can_update_quantity_or_product_for_a_subscription()
+    #[Test]
+    public function it_can_update_quantity_or_product_for_a_subscription(): void
     {
         $expectedResponse = $this->mockUpdateSubscriptionItemsResponse();
 
@@ -139,8 +140,8 @@ public function it_can_update_quantity_or_product_for_a_subscription()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('I-BW452GLLEP1G', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_list_transactions_for_a_subscription()
+    #[Test]
+    public function it_can_list_transactions_for_a_subscription(): void
     {
         $expectedResponse = $this->mockListSubscriptionTransactionsResponse();
 
diff --git a/tests/Unit/Adapter/TrackersTest.php b/tests/Unit/Adapter/TrackersTest.php
index 25a7d2df..4cc6ff76 100644
--- a/tests/Unit/Adapter/TrackersTest.php
+++ b/tests/Unit/Adapter/TrackersTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class TrackersTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_get_tracking_details_for_tracking_id()
+    #[Test]
+    public function it_can_get_tracking_details_for_tracking_id(): void
     {
         $expectedResponse = $this->mockGetTrackingDetailsResponse();
 
@@ -30,8 +31,8 @@ public function it_can_get_tracking_details_for_tracking_id()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams));
     }
 
-    /** @test */
-    public function it_can_update_tracking_details_for_tracking_id()
+    #[Test]
+    public function it_can_update_tracking_details_for_tracking_id(): void
     {
         $expectedResponse = '';
 
@@ -49,8 +50,8 @@ public function it_can_update_tracking_details_for_tracking_id()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}($expectedParams, $expectedData));
     }
 
-    /** @test */
-    public function it_can_create_tracking_in_batches()
+    #[Test]
+    public function it_can_create_tracking_in_batches(): void
     {
         $expectedResponse = $this->mockCreateTrackinginBatchesResponse();
 
diff --git a/tests/Unit/Adapter/WebHooksEventsTest.php b/tests/Unit/Adapter/WebHooksEventsTest.php
index 952c2076..6490e5c6 100644
--- a/tests/Unit/Adapter/WebHooksEventsTest.php
+++ b/tests/Unit/Adapter/WebHooksEventsTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -11,8 +12,8 @@ class WebHooksEventsTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_web_hooks_event_types()
+    #[Test]
+    public function it_can_list_web_hooks_event_types(): void
     {
         $expectedResponse = $this->mockListWebHookEventsTypesResponse();
 
@@ -26,8 +27,8 @@ public function it_can_list_web_hooks_event_types()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_list_web_hooks_events()
+    #[Test]
+    public function it_can_list_web_hooks_events(): void
     {
         $expectedResponse = $this->mockWebHookEventsListResponse();
 
@@ -41,8 +42,8 @@ public function it_can_list_web_hooks_events()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_web_hooks_event()
+    #[Test]
+    public function it_can_show_details_for_a_web_hooks_event(): void
     {
         $expectedResponse = $this->mockGetWebHookEventResponse();
 
@@ -56,8 +57,8 @@ public function it_can_show_details_for_a_web_hooks_event()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('8PT597110X687430LKGECATA'));
     }
 
-    /** @test */
-    public function it_can_resend_notification_for_a_web_hooks_event()
+    #[Test]
+    public function it_can_resend_notification_for_a_web_hooks_event(): void
     {
         $expectedResponse = $this->mockResendWebHookEventNotificationResponse();
 
diff --git a/tests/Unit/Adapter/WebHooksTest.php b/tests/Unit/Adapter/WebHooksTest.php
index ae725d8f..36b9535f 100644
--- a/tests/Unit/Adapter/WebHooksTest.php
+++ b/tests/Unit/Adapter/WebHooksTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class WebHooksTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_web_hook()
+    #[Test]
+    public function it_can_create_a_web_hook(): void
     {
         $expectedResponse = $this->mockCreateWebHookResponse();
 
@@ -31,8 +32,8 @@ public function it_can_create_a_web_hook()
         ));
     }
 
-    /** @test */
-    public function it_can_list_web_hooks()
+    #[Test]
+    public function it_can_list_web_hooks(): void
     {
         $expectedResponse = $this->mockListWebHookResponse();
 
@@ -46,8 +47,8 @@ public function it_can_list_web_hooks()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}());
     }
 
-    /** @test */
-    public function it_can_delete_a_web_hook()
+    #[Test]
+    public function it_can_delete_a_web_hook(): void
     {
         $expectedResponse = '';
 
@@ -61,8 +62,8 @@ public function it_can_delete_a_web_hook()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('5GP028458E2496506'));
     }
 
-    /** @test */
-    public function it_can_update_a_web_hook()
+    #[Test]
+    public function it_can_update_a_web_hook(): void
     {
         $expectedResponse = $this->mockUpdateWebHookResponse();
 
@@ -78,8 +79,8 @@ public function it_can_update_a_web_hook()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('0EH40505U7160970P', $expectedParams));
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_web_hook()
+    #[Test]
+    public function it_can_show_details_for_a_web_hook(): void
     {
         $expectedResponse = $this->mockGetWebHookResponse();
 
@@ -93,8 +94,8 @@ public function it_can_show_details_for_a_web_hook()
         $this->assertEquals($expectedResponse, $mockClient->{$expectedMethod}('0EH40505U7160970P'));
     }
 
-    /** @test */
-    public function it_can_list_web_hooks_events()
+    #[Test]
+    public function it_can_list_web_hooks_events(): void
     {
         $expectedResponse = $this->mockListWebHookEventsResponse();
 
diff --git a/tests/Unit/Adapter/WebHooksVerificationTest.php b/tests/Unit/Adapter/WebHooksVerificationTest.php
index a7ecd45c..ac9132f1 100644
--- a/tests/Unit/Adapter/WebHooksVerificationTest.php
+++ b/tests/Unit/Adapter/WebHooksVerificationTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit\Adapter;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -13,8 +14,8 @@ class WebHooksVerificationTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_verify_web_hook_signature()
+    #[Test]
+    public function it_can_verify_web_hook_signature(): void
     {
         $expectedResponse = $this->mockVerifyWebHookSignatureResponse();
 
diff --git a/tests/Unit/AdapterTest.php b/tests/Unit/AdapterTest.php
index 89ce3009..dbda6e5a 100644
--- a/tests/Unit/AdapterTest.php
+++ b/tests/Unit/AdapterTest.php
@@ -2,6 +2,7 @@
 
 namespace Srmklive\PayPal\Tests\Unit;
 
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
 use Srmklive\PayPal\Tests\MockClientClasses;
@@ -12,24 +13,24 @@ class AdapterTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_be_instantiated()
+    #[Test]
+    public function it_can_be_instantiated(): void
     {
         $client = new PayPalClient($this->getMockCredentials());
 
         $this->assertInstanceOf(PayPalClient::class, $client);
     }
 
-    /** @test */
-    public function it_throws_exception_if_invalid_credentials_are_provided()
+    #[Test]
+    public function it_throws_exception_if_invalid_credentials_are_provided(): void
     {
         $this->expectException(\RuntimeException::class);
 
         $client = new PayPalClient();
     }
 
-    /** @test */
-    public function it_throws_exception_if_invalid_mode_is_provided()
+    #[Test]
+    public function it_throws_exception_if_invalid_mode_is_provided(): void
     {
         $this->expectException(\RuntimeException::class);
         // $this->expectErrorMessage('Invalid configuration provided. Please provide valid configuration for PayPal API. You can also refer to the documentation at https://srmklive.github.io/laravel-paypal/docs.html to setup correct configuration.');
@@ -40,8 +41,8 @@ public function it_throws_exception_if_invalid_mode_is_provided()
         $client = new PayPalClient($credentials);
     }
 
-    /** @test */
-    public function it_throws_exception_if_empty_credentials_are_provided()
+    #[Test]
+    public function it_throws_exception_if_empty_credentials_are_provided(): void
     {
         $this->expectException(\RuntimeException::class);
         // $this->expectErrorMessage('Invalid configuration provided. Please provide valid configuration for PayPal API. You can also refer to the documentation at https://srmklive.github.io/laravel-paypal/docs.html to setup correct configuration.');
@@ -52,8 +53,8 @@ public function it_throws_exception_if_empty_credentials_are_provided()
         $client = new PayPalClient($credentials);
     }
 
-    /** @test */
-    public function it_throws_exception_if_credentials_items_are_not_provided()
+    #[Test]
+    public function it_throws_exception_if_credentials_items_are_not_provided(): void
     {
         $item = 'client_id';
 
@@ -66,8 +67,8 @@ public function it_throws_exception_if_credentials_items_are_not_provided()
         $client = new PayPalClient($credentials);
     }
 
-    /** @test */
-    public function it_can_get_access_token()
+    #[Test]
+    public function it_can_get_access_token(): void
     {
         $expectedResponse = $this->mockAccessTokenResponse();
 
diff --git a/tests/Unit/Client/BillingPlansTest.php b/tests/Unit/Client/BillingPlansTest.php
index 70bf72da..af10d1c6 100644
--- a/tests/Unit/Client/BillingPlansTest.php
+++ b/tests/Unit/Client/BillingPlansTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class BillingPlansTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_billing_plan()
+    #[Test]
+    public function it_can_create_a_billing_plan(): void
     {
         $expectedResponse = $this->mockCreatePlansResponse();
 
@@ -34,8 +35,8 @@ public function it_can_create_a_billing_plan()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_billing_plans()
+    #[Test]
+    public function it_can_list_billing_plans(): void
     {
         $expectedResponse = $this->mockListPlansResponse();
 
@@ -53,8 +54,8 @@ public function it_can_list_billing_plans()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_a_billing_plan()
+    #[Test]
+    public function it_can_update_a_billing_plan(): void
     {
         $expectedResponse = '';
 
@@ -73,8 +74,8 @@ public function it_can_update_a_billing_plan()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->patch($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_billing_plan()
+    #[Test]
+    public function it_can_show_details_for_a_billing_plan(): void
     {
         $expectedResponse = $this->mockGetPlansResponse();
 
@@ -92,8 +93,8 @@ public function it_can_show_details_for_a_billing_plan()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_activate_a_billing_plan()
+    #[Test]
+    public function it_can_activate_a_billing_plan(): void
     {
         $expectedResponse = '';
 
@@ -111,8 +112,8 @@ public function it_can_activate_a_billing_plan()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_deactivate_a_billing_plan()
+    #[Test]
+    public function it_can_deactivate_a_billing_plan(): void
     {
         $expectedResponse = '';
 
@@ -130,8 +131,8 @@ public function it_can_deactivate_a_billing_plan()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_pricing_for_a_billing_plan()
+    #[Test]
+    public function it_can_update_pricing_for_a_billing_plan(): void
     {
         $expectedResponse = '';
 
diff --git a/tests/Unit/Client/CatalogProductsTest.php b/tests/Unit/Client/CatalogProductsTest.php
index 4cb42e02..c1695847 100644
--- a/tests/Unit/Client/CatalogProductsTest.php
+++ b/tests/Unit/Client/CatalogProductsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class CatalogProductsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_product()
+    #[Test]
+    public function it_can_create_a_product(): void
     {
         $expectedResponse = $this->mockCreateCatalogProductsResponse();
 
@@ -34,8 +35,8 @@ public function it_can_create_a_product()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_products()
+    #[Test]
+    public function it_can_list_products(): void
     {
         $expectedResponse = $this->mockListCatalogProductsResponse();
 
@@ -53,8 +54,8 @@ public function it_can_list_products()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_a_product()
+    #[Test]
+    public function it_can_update_a_product(): void
     {
         $expectedResponse = '';
 
@@ -73,8 +74,8 @@ public function it_can_update_a_product()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->patch($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_get_details_for_a_product()
+    #[Test]
+    public function it_can_get_details_for_a_product(): void
     {
         $expectedResponse = $this->mockGetCatalogProductsResponse();
 
diff --git a/tests/Unit/Client/DisputeActionsTest.php b/tests/Unit/Client/DisputeActionsTest.php
index 00b279c2..a14454fb 100644
--- a/tests/Unit/Client/DisputeActionsTest.php
+++ b/tests/Unit/Client/DisputeActionsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class DisputeActionsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_accept_dispute_claim()
+    #[Test]
+    public function it_can_accept_dispute_claim(): void
     {
         $expectedResponse = $this->mockAcceptDisputesClaimResponse();
 
@@ -34,8 +35,8 @@ public function it_can_accept_dispute_claim()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_accept_dispute_offer_resolution()
+    #[Test]
+    public function it_can_accept_dispute_offer_resolution(): void
     {
         $expectedResponse = $this->mockAcceptDisputesOfferResolutionResponse();
 
@@ -54,8 +55,8 @@ public function it_can_accept_dispute_offer_resolution()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_acknowledge_item_is_returned_for_raised_dispute()
+    #[Test]
+    public function it_can_acknowledge_item_is_returned_for_raised_dispute(): void
     {
         $expectedResponse = $this->mockAcknowledgeItemReturnedResponse();
 
diff --git a/tests/Unit/Client/DisputesTest.php b/tests/Unit/Client/DisputesTest.php
index a0896984..46b7d1cf 100644
--- a/tests/Unit/Client/DisputesTest.php
+++ b/tests/Unit/Client/DisputesTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class DisputesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_disputes()
+    #[Test]
+    public function it_can_list_disputes(): void
     {
         $expectedResponse = $this->mockListDisputesResponse();
 
@@ -33,8 +34,8 @@ public function it_can_list_disputes()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_partially_update_a_dispute()
+    #[Test]
+    public function it_can_partially_update_a_dispute(): void
     {
         $expectedResponse = '';
 
@@ -53,8 +54,8 @@ public function it_can_partially_update_a_dispute()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->patch($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_get_details_for_a_dispute()
+    #[Test]
+    public function it_can_get_details_for_a_dispute(): void
     {
         $expectedResponse = $this->mockGetDisputesResponse();
 
diff --git a/tests/Unit/Client/IdentityTest.php b/tests/Unit/Client/IdentityTest.php
index bc6c0bb6..805f70cd 100644
--- a/tests/Unit/Client/IdentityTest.php
+++ b/tests/Unit/Client/IdentityTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class IdentityTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_user_profile_details()
+    #[Test]
+    public function it_can_user_profile_details(): void
     {
         $expectedResponse = $this->mockShowProfileInfoResponse();
 
diff --git a/tests/Unit/Client/InvoicesSearchTest.php b/tests/Unit/Client/InvoicesSearchTest.php
index 540c0cee..2097404c 100644
--- a/tests/Unit/Client/InvoicesSearchTest.php
+++ b/tests/Unit/Client/InvoicesSearchTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class InvoicesSearchTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_search_invoices()
+    #[Test]
+    public function it_can_search_invoices(): void
     {
         $expectedResponse = $this->mockSearchInvoicesResponse();
 
diff --git a/tests/Unit/Client/InvoicesTemplatesTest.php b/tests/Unit/Client/InvoicesTemplatesTest.php
index ae09c0a2..144bcd95 100644
--- a/tests/Unit/Client/InvoicesTemplatesTest.php
+++ b/tests/Unit/Client/InvoicesTemplatesTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class InvoicesTemplatesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_invoice_template()
+    #[Test]
+    public function it_can_create_invoice_template(): void
     {
         $expectedResponse = $this->mockCreateInvoiceTemplateResponse();
 
@@ -34,8 +35,8 @@ public function it_can_create_invoice_template()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_invoice_templates()
+    #[Test]
+    public function it_can_list_invoice_templates(): void
     {
         $expectedResponse = $this->mockListInvoiceTemplateResponse();
 
@@ -53,8 +54,8 @@ public function it_can_list_invoice_templates()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_delete_an_invoice_template()
+    #[Test]
+    public function it_can_delete_an_invoice_template(): void
     {
         $expectedResponse = '';
 
@@ -72,8 +73,8 @@ public function it_can_delete_an_invoice_template()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->delete($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_an_invoice_template()
+    #[Test]
+    public function it_can_update_an_invoice_template(): void
     {
         $expectedResponse = $this->mockUpdateInvoiceTemplateResponse();
 
@@ -92,8 +93,8 @@ public function it_can_update_an_invoice_template()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->put($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_get_details_for_an_invoice_template()
+    #[Test]
+    public function it_can_get_details_for_an_invoice_template(): void
     {
         $expectedResponse = $this->mockGetInvoiceTemplateResponse();
 
diff --git a/tests/Unit/Client/InvoicesTest.php b/tests/Unit/Client/InvoicesTest.php
index ffaaf18e..9ff17edc 100644
--- a/tests/Unit/Client/InvoicesTest.php
+++ b/tests/Unit/Client/InvoicesTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class InvoicesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_generate_unique_invoice_number()
+    #[Test]
+    public function it_can_generate_unique_invoice_number(): void
     {
         $expectedResponse = $this->mockGenerateInvoiceNumberResponse();
 
@@ -33,8 +34,8 @@ public function it_can_generate_unique_invoice_number()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_create_a_draft_invoice()
+    #[Test]
+    public function it_can_create_a_draft_invoice(): void
     {
         $expectedResponse = $this->mockCreateInvoicesResponse();
 
@@ -53,8 +54,8 @@ public function it_can_create_a_draft_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_current_invoices()
+    #[Test]
+    public function it_can_list_current_invoices(): void
     {
         $expectedResponse = $this->mockListInvoicesResponse();
 
@@ -72,8 +73,8 @@ public function it_can_list_current_invoices()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_delete_an_invoice()
+    #[Test]
+    public function it_can_delete_an_invoice(): void
     {
         $expectedResponse = '';
 
@@ -91,8 +92,8 @@ public function it_can_delete_an_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->delete($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_an_invoice()
+    #[Test]
+    public function it_can_update_an_invoice(): void
     {
         $expectedResponse = $this->mockUpdateInvoicesResponse();
 
@@ -111,8 +112,8 @@ public function it_can_update_an_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->put($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_details_for_an_invoice()
+    #[Test]
+    public function it_can_show_details_for_an_invoice(): void
     {
         $expectedResponse = $this->mockGetInvoicesResponse();
 
@@ -130,8 +131,8 @@ public function it_can_show_details_for_an_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_cancel_an_invoice()
+    #[Test]
+    public function it_can_cancel_an_invoice(): void
     {
         $expectedResponse = '';
 
@@ -150,8 +151,8 @@ public function it_can_cancel_an_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_generate_qr_code_for_invoice()
+    #[Test]
+    public function it_can_generate_qr_code_for_invoice(): void
     {
         $expectedResponse = $this->mockGenerateInvoiceNumberResponse();
 
@@ -170,8 +171,8 @@ public function it_can_generate_qr_code_for_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_register_payment_for_invoice()
+    #[Test]
+    public function it_can_register_payment_for_invoice(): void
     {
         $expectedResponse = $this->mockInvoiceRegisterPaymentResponse();
 
@@ -190,8 +191,8 @@ public function it_can_register_payment_for_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_delete_payment_for_invoice()
+    #[Test]
+    public function it_can_delete_payment_for_invoice(): void
     {
         $expectedResponse = '';
 
@@ -209,8 +210,8 @@ public function it_can_delete_payment_for_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->delete($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_refund_payment_for_invoice()
+    #[Test]
+    public function it_can_refund_payment_for_invoice(): void
     {
         $expectedResponse = $this->mockInvoiceRefundPaymentResponse();
 
@@ -229,8 +230,8 @@ public function it_can_refund_payment_for_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_delete_refund_for_invoice()
+    #[Test]
+    public function it_can_delete_refund_for_invoice(): void
     {
         $expectedResponse = '';
 
@@ -248,8 +249,8 @@ public function it_can_delete_refund_for_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->delete($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_send_an_invoice()
+    #[Test]
+    public function it_can_send_an_invoice(): void
     {
         $expectedResponse = '';
 
@@ -268,8 +269,8 @@ public function it_can_send_an_invoice()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_send_reminder_for_an_invoice()
+    #[Test]
+    public function it_can_send_reminder_for_an_invoice(): void
     {
         $expectedResponse = '';
 
diff --git a/tests/Unit/Client/OrdersTest.php b/tests/Unit/Client/OrdersTest.php
index fccb25ab..b8ff33b8 100644
--- a/tests/Unit/Client/OrdersTest.php
+++ b/tests/Unit/Client/OrdersTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class OrdersTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_an_order()
+    #[Test]
+    public function it_can_create_an_order(): void
     {
         $expectedResponse = $this->mockCreateOrdersResponse();
 
diff --git a/tests/Unit/Client/PartnerReferralsTest.php b/tests/Unit/Client/PartnerReferralsTest.php
index 1d1f284d..6e961a0a 100644
--- a/tests/Unit/Client/PartnerReferralsTest.php
+++ b/tests/Unit/Client/PartnerReferralsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class PartnerReferralsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_partner_referral()
+    #[Test]
+    public function it_can_create_partner_referral(): void
     {
         $expectedResponse = $this->mockCreatePartnerReferralsResponse();
 
@@ -34,8 +35,8 @@ public function it_can_create_partner_referral()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_get_referral_details()
+    #[Test]
+    public function it_can_get_referral_details(): void
     {
         $expectedResponse = $this->mockShowReferralDataResponse();
 
diff --git a/tests/Unit/Client/PaymentAuthorizationsTest.php b/tests/Unit/Client/PaymentAuthorizationsTest.php
index 02b6e4f3..a151ed9b 100644
--- a/tests/Unit/Client/PaymentAuthorizationsTest.php
+++ b/tests/Unit/Client/PaymentAuthorizationsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class PaymentAuthorizationsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_show_details_for_an_authorized_payment()
+    #[Test]
+    public function it_can_show_details_for_an_authorized_payment(): void
     {
         $expectedResponse = $this->mockGetAuthorizedPaymentDetailsResponse();
 
@@ -33,8 +34,8 @@ public function it_can_show_details_for_an_authorized_payment()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_capture_an_authorized_payment()
+    #[Test]
+    public function it_can_capture_an_authorized_payment(): void
     {
         $expectedResponse = $this->mockCaptureAuthorizedPaymentResponse();
 
@@ -53,8 +54,8 @@ public function it_can_capture_an_authorized_payment()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_reauthorize_an_authorized_payment()
+    #[Test]
+    public function it_can_reauthorize_an_authorized_payment(): void
     {
         $expectedResponse = $this->mockReAuthorizeAuthorizedPaymentResponse();
 
@@ -73,8 +74,8 @@ public function it_can_reauthorize_an_authorized_payment()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_void_an_authorized_payment()
+    #[Test]
+    public function it_can_void_an_authorized_payment(): void
     {
         $expectedResponse = '';
 
diff --git a/tests/Unit/Client/PaymentCapturesTest.php b/tests/Unit/Client/PaymentCapturesTest.php
index 9f28d79b..b8b58bda 100644
--- a/tests/Unit/Client/PaymentCapturesTest.php
+++ b/tests/Unit/Client/PaymentCapturesTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class PaymentCapturesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_show_details_for_a_captured_payment()
+    #[Test]
+    public function it_can_show_details_for_a_captured_payment(): void
     {
         $expectedResponse = $this->mockGetCapturedPaymentDetailsResponse();
 
@@ -33,8 +34,8 @@ public function it_can_show_details_for_a_captured_payment()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_refund_a_captured_payment()
+    #[Test]
+    public function it_can_refund_a_captured_payment(): void
     {
         $expectedResponse = $this->mockRefundCapturedPaymentResponse();
 
diff --git a/tests/Unit/Client/PaymentExperienceWebProfilesTest.php b/tests/Unit/Client/PaymentExperienceWebProfilesTest.php
index 26ebf5be..0f31fe6a 100644
--- a/tests/Unit/Client/PaymentExperienceWebProfilesTest.php
+++ b/tests/Unit/Client/PaymentExperienceWebProfilesTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class PaymentExperienceWebProfilesTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_web_experience_profiles()
+    #[Test]
+    public function it_can_list_web_experience_profiles(): void
     {
         $expectedResponse = $this->mockListWebProfilesResponse();
 
@@ -33,8 +34,8 @@ public function it_can_list_web_experience_profiles()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_create_web_experience_profile()
+    #[Test]
+    public function it_can_create_web_experience_profile(): void
     {
         $expectedResponse = $this->mockWebProfileResponse();
 
@@ -54,8 +55,8 @@ public function it_can_create_web_experience_profile()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_delete_web_experience_profile()
+    #[Test]
+    public function it_can_delete_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -73,8 +74,8 @@ public function it_can_delete_web_experience_profile()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->delete($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_partially_update_web_experience_profile()
+    #[Test]
+    public function it_can_partially_update_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -93,8 +94,8 @@ public function it_can_partially_update_web_experience_profile()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->patch($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_fully_update_web_experience_profile()
+    #[Test]
+    public function it_can_fully_update_web_experience_profile(): void
     {
         $expectedResponse = '';
 
@@ -113,8 +114,8 @@ public function it_can_fully_update_web_experience_profile()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->patch($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_get_web_experience_profile_details()
+    #[Test]
+    public function it_can_get_web_experience_profile_details(): void
     {
         $expectedResponse = $this->mockWebProfileResponse();
 
diff --git a/tests/Unit/Client/PaymentRefundsTest.php b/tests/Unit/Client/PaymentRefundsTest.php
index 073bee7b..fcbe3375 100644
--- a/tests/Unit/Client/PaymentRefundsTest.php
+++ b/tests/Unit/Client/PaymentRefundsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -12,8 +13,8 @@ class PaymentRefundsTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_show_details_for_a_refund()
+    #[Test]
+    public function it_can_show_details_for_a_refund(): void
     {
         $expectedResponse = $this->mockGetRefundDetailsResponse();
 
diff --git a/tests/Unit/Client/PayoutsTest.php b/tests/Unit/Client/PayoutsTest.php
index 6413fa5f..5678c44b 100644
--- a/tests/Unit/Client/PayoutsTest.php
+++ b/tests/Unit/Client/PayoutsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class PayoutsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_batch_payout()
+    #[Test]
+    public function it_can_create_batch_payout(): void
     {
         $expectedResponse = $this->mockCreateBatchPayoutResponse();
 
@@ -34,8 +35,8 @@ public function it_can_create_batch_payout()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_batch_payout_details()
+    #[Test]
+    public function it_can_show_batch_payout_details(): void
     {
         $expectedResponse = $this->showBatchPayoutResponse();
 
@@ -53,8 +54,8 @@ public function it_can_show_batch_payout_details()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_batch_payout_item_details()
+    #[Test]
+    public function it_can_show_batch_payout_item_details(): void
     {
         $expectedResponse = $this->showBatchPayoutItemResponse();
 
@@ -72,8 +73,8 @@ public function it_can_show_batch_payout_item_details()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_cancel_unclaimed_batch_payout_item()
+    #[Test]
+    public function it_can_cancel_unclaimed_batch_payout_item(): void
     {
         $expectedResponse = $this->mockCancelUnclaimedBatchItemResponse();
 
diff --git a/tests/Unit/Client/ReferencedPayoutsTest.php b/tests/Unit/Client/ReferencedPayoutsTest.php
index ff11d2a4..17995ac2 100644
--- a/tests/Unit/Client/ReferencedPayoutsTest.php
+++ b/tests/Unit/Client/ReferencedPayoutsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class ReferencedPayoutsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_referenced_batch_payout()
+    #[Test]
+    public function it_can_create_referenced_batch_payout(): void
     {
         $expectedResponse = $this->mockCreateReferencedBatchPayoutResponse();
 
@@ -36,8 +37,8 @@ public function it_can_create_referenced_batch_payout()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_items_referenced_in_batch_payout()
+    #[Test]
+    public function it_can_list_items_referenced_in_batch_payout(): void
     {
         $expectedResponse = $this->mockShowReferencedBatchPayoutResponse();
 
@@ -55,8 +56,8 @@ public function it_can_list_items_referenced_in_batch_payout()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_create_referenced_batch_payout_item()
+    #[Test]
+    public function it_can_create_referenced_batch_payout_item(): void
     {
         $expectedResponse = $this->mockCreateReferencedBatchPayoutItemResponse();
 
@@ -77,8 +78,8 @@ public function it_can_create_referenced_batch_payout_item()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_referenced_payout_item_details()
+    #[Test]
+    public function it_can_show_referenced_payout_item_details(): void
     {
         $expectedResponse = $this->mockShowReferencedBatchPayoutItemResponse();
 
diff --git a/tests/Unit/Client/ReportingTest.php b/tests/Unit/Client/ReportingTest.php
index 5f37945d..80597a16 100644
--- a/tests/Unit/Client/ReportingTest.php
+++ b/tests/Unit/Client/ReportingTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class ReportingTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_transactions()
+    #[Test]
+    public function it_can_list_transactions(): void
     {
         $expectedResponse = $this->mockListTransactionsResponse();
 
@@ -34,8 +35,8 @@ public function it_can_list_transactions()
         $this->assertArrayHasKey('transaction_details', Utils::jsonDecode($mockResponse, true));
     }
 
-    /** @test */
-    public function it_can_list_balances()
+    #[Test]
+    public function it_can_list_balances(): void
     {
         $expectedResponse = $this->mockListBalancesResponse();
 
diff --git a/tests/Unit/Client/SubscriptionsTest.php b/tests/Unit/Client/SubscriptionsTest.php
index eadd9887..dc8264fc 100644
--- a/tests/Unit/Client/SubscriptionsTest.php
+++ b/tests/Unit/Client/SubscriptionsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class SubscriptionsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_subscription()
+    #[Test]
+    public function it_can_create_a_subscription(): void
     {
         $expectedResponse = $this->mockCreateSubscriptionResponse();
 
@@ -34,8 +35,8 @@ public function it_can_create_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_a_subscription()
+    #[Test]
+    public function it_can_update_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -54,8 +55,8 @@ public function it_can_update_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->patch($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_subscription()
+    #[Test]
+    public function it_can_show_details_for_a_subscription(): void
     {
         $expectedResponse = $this->mockGetSubscriptionDetailsResponse();
 
@@ -73,8 +74,8 @@ public function it_can_show_details_for_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_activate_a_subscription()
+    #[Test]
+    public function it_can_activate_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -93,8 +94,8 @@ public function it_can_activate_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_cancel_a_subscription()
+    #[Test]
+    public function it_can_cancel_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -113,8 +114,8 @@ public function it_can_cancel_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_suspend_a_subscription()
+    #[Test]
+    public function it_can_suspend_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -133,8 +134,8 @@ public function it_can_suspend_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_capture_payment_for_a_subscription()
+    #[Test]
+    public function it_can_capture_payment_for_a_subscription(): void
     {
         $expectedResponse = '';
 
@@ -153,8 +154,8 @@ public function it_can_capture_payment_for_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_quantity_or_product_for_a_subscription()
+    #[Test]
+    public function it_can_update_quantity_or_product_for_a_subscription(): void
     {
         $expectedResponse = $this->mockUpdateSubscriptionItemsResponse();
 
@@ -173,8 +174,8 @@ public function it_can_update_quantity_or_product_for_a_subscription()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_transactions_for_a_subscription()
+    #[Test]
+    public function it_can_list_transactions_for_a_subscription(): void
     {
         $expectedResponse = $this->mockListSubscriptionTransactionsResponse();
 
diff --git a/tests/Unit/Client/TrackersTest.php b/tests/Unit/Client/TrackersTest.php
index 6f85fec1..1862fa14 100644
--- a/tests/Unit/Client/TrackersTest.php
+++ b/tests/Unit/Client/TrackersTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class TrackersTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_get_tracking_details_for_tracking_id()
+    #[Test]
+    public function it_can_get_tracking_details_for_tracking_id(): void
     {
         $expectedResponse = $this->mockGetTrackingDetailsResponse();
 
@@ -33,8 +34,8 @@ public function it_can_get_tracking_details_for_tracking_id()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_tracking_details_for_tracking_id()
+    #[Test]
+    public function it_can_update_tracking_details_for_tracking_id(): void
     {
         $expectedResponse = '';
 
@@ -53,8 +54,8 @@ public function it_can_update_tracking_details_for_tracking_id()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->put($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_create_tracking_in_batches()
+    #[Test]
+    public function it_can_create_tracking_in_batches(): void
     {
         $expectedResponse = $this->mockCreateTrackinginBatchesResponse();
 
diff --git a/tests/Unit/Client/WebHooksEventsTest.php b/tests/Unit/Client/WebHooksEventsTest.php
index 38e42c3c..e861e5a4 100644
--- a/tests/Unit/Client/WebHooksEventsTest.php
+++ b/tests/Unit/Client/WebHooksEventsTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class WebHooksEventsTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_list_web_hooks_event_types()
+    #[Test]
+    public function it_can_list_web_hooks_event_types(): void
     {
         $expectedResponse = $this->mockListWebHookEventsTypesResponse();
 
@@ -33,8 +34,8 @@ public function it_can_list_web_hooks_event_types()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_web_hooks_events()
+    #[Test]
+    public function it_can_list_web_hooks_events(): void
     {
         $expectedResponse = $this->mockWebHookEventsListResponse();
 
@@ -52,8 +53,8 @@ public function it_can_list_web_hooks_events()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_web_hooks_event()
+    #[Test]
+    public function it_can_show_details_for_a_web_hooks_event(): void
     {
         $expectedResponse = $this->mockGetWebHookEventResponse();
 
@@ -71,8 +72,8 @@ public function it_can_show_details_for_a_web_hooks_event()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_resend_notification_for_a_web_hooks_event()
+    #[Test]
+    public function it_can_resend_notification_for_a_web_hooks_event(): void
     {
         $expectedResponse = $this->mockResendWebHookEventNotificationResponse();
 
diff --git a/tests/Unit/Client/WebHooksTest.php b/tests/Unit/Client/WebHooksTest.php
index 8a08b235..9f52a48c 100644
--- a/tests/Unit/Client/WebHooksTest.php
+++ b/tests/Unit/Client/WebHooksTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class WebHooksTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_create_a_web_hook()
+    #[Test]
+    public function it_can_create_a_web_hook(): void
     {
         $expectedResponse = $this->mockCreateWebHookResponse();
 
@@ -34,8 +35,8 @@ public function it_can_create_a_web_hook()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->post($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_web_hooks()
+    #[Test]
+    public function it_can_list_web_hooks(): void
     {
         $expectedResponse = $this->mockListWebHookResponse();
 
@@ -53,8 +54,8 @@ public function it_can_list_web_hooks()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_delete_a_web_hook()
+    #[Test]
+    public function it_can_delete_a_web_hook(): void
     {
         $expectedResponse = '';
 
@@ -72,8 +73,8 @@ public function it_can_delete_a_web_hook()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->delete($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_update_a_web_hook()
+    #[Test]
+    public function it_can_update_a_web_hook(): void
     {
         $expectedResponse = $this->mockUpdateWebHookResponse();
 
@@ -92,8 +93,8 @@ public function it_can_update_a_web_hook()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->patch($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_show_details_for_a_web_hook()
+    #[Test]
+    public function it_can_show_details_for_a_web_hook(): void
     {
         $expectedResponse = $this->mockGetWebHookResponse();
 
@@ -111,8 +112,8 @@ public function it_can_show_details_for_a_web_hook()
         $this->assertEquals($expectedResponse, Utils::jsonDecode($mockHttpClient->get($expectedEndpoint, $expectedParams)->getBody(), true));
     }
 
-    /** @test */
-    public function it_can_list_web_hooks_events()
+    #[Test]
+    public function it_can_list_web_hooks_events(): void
     {
         $expectedResponse = $this->mockListWebHookEventsResponse();
 
diff --git a/tests/Unit/Client/WebHooksVerificationTest.php b/tests/Unit/Client/WebHooksVerificationTest.php
index d888ccc1..84cbc722 100644
--- a/tests/Unit/Client/WebHooksVerificationTest.php
+++ b/tests/Unit/Client/WebHooksVerificationTest.php
@@ -3,6 +3,7 @@
 namespace Srmklive\PayPal\Tests\Unit\Client;
 
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
@@ -14,8 +15,8 @@ class WebHooksVerificationTest extends TestCase
     use MockRequestPayloads;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_verify_web_hook_signature()
+    #[Test]
+    public function it_can_verify_web_hook_signature(): void
     {
         $expectedResponse = $this->mockVerifyWebHookSignatureResponse();
 
diff --git a/tests/Unit/ClientTest.php b/tests/Unit/ClientTest.php
index c44c700d..be60255c 100644
--- a/tests/Unit/ClientTest.php
+++ b/tests/Unit/ClientTest.php
@@ -4,6 +4,7 @@
 
 use GuzzleHttp\Client as HttpClient;
 use GuzzleHttp\Utils;
+use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -13,15 +14,15 @@ class ClientTest extends TestCase
     use MockClientClasses;
     use MockResponsePayloads;
 
-    /** @test */
-    public function it_can_be_instantiated()
+    #[Test]
+    public function it_can_be_instantiated(): void
     {
         $client = new HttpClient();
         $this->assertInstanceOf(HttpClient::class, $client);
     }
 
-    /** @test */
-    public function it_can_get_access_token()
+    #[Test]
+    public function it_can_get_access_token(): void
     {
         $expectedResponse = $this->mockAccessTokenResponse();