Add tests for the JS serverless plugin

composer.json

@@ -42,7 +42,8 @@
         "guzzlehttp/guzzle": "^7.5",
         "phpstan/phpstan": "^1.10.26",
         "phpunit/phpunit": "^9.6.10",
-        "symfony/console": "^4.4|^5.0|^6.0|^7.0"
+        "symfony/console": "^4.4|^5.0|^6.0|^7.0",
+        "symfony/yaml": "^6.3"
     },
     "scripts": {
         "test": [

tests/Plugin/serverless-runtime-root.yml

@@ -0,0 +1,14 @@
+service: bref
+provider:
+    name: aws
+    runtime: php-83
+
+plugins:
+    - ../../index.js
+
+functions:
+    function:
+        handler: function.php
+    function-arm:
+        handler: function.php
+        architecture: arm64

tests/Plugin/serverless.yml

@@ -0,0 +1,30 @@
+service: bref
+provider:
+    name: aws
+
+plugins:
+    - ../../index.js
+
+functions:
+    function:
+        handler: function.php
+        runtime: php-83
+    fpm:
+        handler: fpm.php
+        runtime: php-83-fpm
+    console:
+        handler: console.php
+        runtime: php-83-console
+
+    function-arm:
+        handler: function.php
+        architecture: arm64
+        runtime: php-83
+    fpm-arm:
+        handler: fpm.php
+        architecture: arm64
+        runtime: php-83-fpm
+    console-arm:
+        handler: console.php
+        architecture: arm64
+        runtime: php-83-console

tests/PluginTest.php

@@ -0,0 +1,70 @@
+<?php declare(strict_types=1);
+
+namespace Bref\Test;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Process\Process;
+use Symfony\Component\Yaml\Yaml;
+
+class PluginTest extends TestCase
+{
+    public function test the plugin adds the layers(): void
+    {
+        $output = $this->slsPrint('serverless.yml');
+
+        self::assertFunction($output['functions']['function'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:php-83:',
+        ]);
+        self::assertFunction($output['functions']['fpm'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:php-83-fpm:',
+        ]);
+        self::assertFunction($output['functions']['console'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:php-83:',
+            'arn:aws:lambda:us-east-1:534081306603:layer:console:',
+        ]);
+
+        self::assertFunction($output['functions']['function-arm'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:arm-php-83:',
+        ]);
+        self::assertFunction($output['functions']['fpm-arm'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:arm-php-83-fpm:',
+        ]);
+        self::assertFunction($output['functions']['console-arm'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:arm-php-83:',
+            'arn:aws:lambda:us-east-1:534081306603:layer:console:',
+        ]);
+    }
+
+    public function test the plugin adds the layers when the runtime is set in the provider(): void
+    {
+        $output = $this->slsPrint('serverless-runtime-root.yml');
+
+        self::assertFunction($output['functions']['function'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:php-83:',
+        ]);
+        self::assertFunction($output['functions']['function-arm'], 'provided.al2', [
+            'arn:aws:lambda:us-east-1:534081306603:layer:arm-php-83:',
+        ]);
+    }
+
+    private function slsPrint(string $configFile): array
+    {
+        $process = (new Process(
+            ['serverless', 'print', '-c', $configFile],
+            cwd: __DIR__ . '/Plugin',
+            env: [
+                'SLS_TELEMETRY_DISABLED' => '1', // else we sometimes get HTTP errors (and its faster)
+            ],
+        ))->mustRun();
+        return Yaml::parse($process->getOutput());
+    }
+
+    private static function assertFunction(array $config, string $runtime, array $layers): void
+    {
+        self::assertEquals($runtime, $config['runtime']);
+        self::assertCount(count($layers), $config['layers']);
+        foreach ($layers as $index => $layer) {
+            self::assertStringStartsWith($layer, $config['layers'][$index]);
+        }
+    }
+}