diff --git a/composer.json b/composer.json
index a9b1224..9fd143d 100644
--- a/composer.json
+++ b/composer.json
@@ -41,6 +41,7 @@
         "roave/infection-static-analysis-plugin": "^1.16",
         "spatie/phpunit-watcher": "^1.23",
         "vimeo/psalm": "^5.25",
+        "vlucas/phpdotenv": "^5.6",
         "yiisoft/aliases": "^2.0",
         "yiisoft/cache-file": "^3.1",
         "yiisoft/var-dumper": "^1.5"
@@ -54,7 +55,8 @@
         "psr-4": {
             "Yiisoft\\Db\\Oracle\\Tests\\": "tests",
             "Yiisoft\\Db\\Tests\\": "vendor/yiisoft/db/tests"
-        }
+        },
+        "files": ["tests/bootstrap.php"]
     },
     "config": {
         "sort-packages": true,
diff --git a/tests/.env b/tests/.env
new file mode 100644
index 0000000..a355b62
--- /dev/null
+++ b/tests/.env
@@ -0,0 +1,6 @@
+ENVIRONMENT=local
+YII_ORACLE_DATABASE=
+YII_ORACLE_HOST=oracle
+YII_ORACLE_PORT=
+YII_ORACLE_USER=system
+YII_ORACLE_PASSWORD=root
diff --git a/tests/Support/TestTrait.php b/tests/Support/TestTrait.php
index 8d5c73d..702ab79 100644
--- a/tests/Support/TestTrait.php
+++ b/tests/Support/TestTrait.php
@@ -5,6 +5,7 @@
 namespace Yiisoft\Db\Oracle\Tests\Support;
 
 use Yiisoft\Db\Driver\Pdo\PdoConnectionInterface;
+use Yiisoft\Db\Driver\Pdo\PdoDriverInterface;
 use Yiisoft\Db\Exception\Exception;
 use Yiisoft\Db\Exception\InvalidConfigException;
 use Yiisoft\Db\Oracle\Connection;
@@ -14,7 +15,7 @@
 
 trait TestTrait
 {
-    private string $dsn = 'oci:dbname=localhost/XE;';
+    private string $dsn = '';
 
     /**
      * @throws InvalidConfigException
@@ -22,7 +23,7 @@ trait TestTrait
      */
     protected function getConnection(bool $fixture = false): PdoConnectionInterface
     {
-        $db = new Connection(new Driver($this->getDsn(), 'system', 'root'), DbHelper::getSchemaCache());
+        $db = new Connection($this->getDriver(), DbHelper::getSchemaCache());
 
         if ($fixture) {
             DbHelper::loadFixture($db, __DIR__ . '/Fixture/oci.sql');
@@ -33,15 +34,25 @@ protected function getConnection(bool $fixture = false): PdoConnectionInterface
 
     protected static function getDb(): PdoConnectionInterface
     {
-        $dsn = (new Dsn(databaseName: 'XE', options: ['charset' => 'AL32UTF8']))->asString();
+        $dsn = (new Dsn(
+            host: self::getHost(),
+            databaseName: self::getDatabaseName(),
+            port: self::getPort(),
+            options: ['charset' => 'AL32UTF8'],
+        ))->asString();
 
-        return new Connection(new Driver($dsn, 'system', 'root'), DbHelper::getSchemaCache());
+        return new Connection(new Driver($dsn, self::getUsername(), self::getPassword()), DbHelper::getSchemaCache());
     }
 
     protected function getDsn(): string
     {
         if ($this->dsn === '') {
-            $this->dsn = (new Dsn(databaseName: 'XE', options: ['charset' => 'AL32UTF8']))->asString();
+            $this->dsn = (new Dsn(
+                host: self::getHost(),
+                databaseName: self::getDatabaseName(),
+                port: self::getPort(),
+                options: ['charset' => 'AL32UTF8'],
+            ))->asString();
         }
 
         return $this->dsn;
@@ -56,4 +67,34 @@ protected function setDsn(string $dsn): void
     {
         $this->dsn = $dsn;
     }
+
+    private function getDriver(): PdoDriverInterface
+    {
+        return new Driver($this->getDsn(), self::getUsername(), self::getPassword());
+    }
+
+    private static function getDatabaseName(): string
+    {
+        return getenv('YII_ORACLE_DATABASE') ?: 'XE';
+    }
+
+    private static function getHost(): string
+    {
+        return getenv('YII_ORACLE_HOST');
+    }
+
+    private static function getPort(): string
+    {
+        return getenv('YII_ORACLE_PORT') ?: '1521';
+    }
+
+    private static function getUsername(): string
+    {
+        return getenv('YII_ORACLE_USER');
+    }
+
+    private static function getPassword(): string
+    {
+        return getenv('YII_ORACLE_PASSWORD');
+    }
 }
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
new file mode 100644
index 0000000..0b8567e
--- /dev/null
+++ b/tests/bootstrap.php
@@ -0,0 +1,8 @@
+<?php
+
+declare(strict_types=1);
+
+if (getenv('ENVIRONMENT', local_only: true) === 'local') {
+    $dotenv = Dotenv\Dotenv::createUnsafeImmutable(__DIR__);
+    $dotenv->load();
+}