Add tests for InteractsWithTwig

Author: bram-pkg

src/Traits/InteractsWithTwig.php

@@ -2,16 +2,17 @@
 
 namespace BlameButton\LaravelDockerBuilder\Traits;
 
-use RuntimeException;
 use Twig\Environment as TwigEnvironment;
-use Twig\Error\Error;
+use Twig\Error\LoaderError;
+use Twig\Error\RuntimeError;
+use Twig\Error\SyntaxError;
 use Twig\Loader\FilesystemLoader;
 
 trait InteractsWithTwig
 {
     private TwigEnvironment|null $twig = null;
 
-    private function twig(): TwigEnvironment
+    public function twig(): TwigEnvironment
     {
         if (! is_null($this->twig)) {
             return $this->twig;
@@ -29,13 +30,13 @@ private function twig(): TwigEnvironment
      * @param  string  $name
      * @param  array<string, mixed>  $context
      * @return string
+     *
+     * @throws LoaderError  when the template cannot be found
+     * @throws SyntaxError  when an error occurred during compilation
+     * @throws RuntimeError when an error occurred during rendering
      */
-    private function render(string $name, array $context): string
+    public function render(string $name, array $context): string
     {
-        try {
-            return $this->twig()->render($name, $context);
-        } catch (Error $error) {
-            throw new RuntimeException($error->getMessage());
-        }
+        return $this->twig()->render($name, $context);
     }
 }

tests/Objects/ConfigurationTest.php

@@ -17,15 +17,15 @@ public function provideCommandOptions(): array
         return [
             [
                 'php artisan docker:generate -n -p 8.2 -e bcmath,pdo_mysql -o -m npm -b vite',
-                new Configuration('8.2', ['bcmath', 'pdo_mysql'], true, 'npm', 'vite')
+                new Configuration('8.2', ['bcmath', 'pdo_mysql'], true, 'npm', 'vite'),
             ],
             [
                 'php artisan docker:generate -n -p 8.1 -e bcmath,pdo_pgsql,redis -o -m yarn -b vite',
-                new Configuration('8.1', ['bcmath', 'pdo_pgsql', 'redis'], true, 'yarn', 'vite')
+                new Configuration('8.1', ['bcmath', 'pdo_pgsql', 'redis'], true, 'yarn', 'vite'),
             ],
             [
                 'php artisan docker:generate -n -p 8.0 -e bcmath,pdo_pgsql,apcu -m yarn -b mix',
-                new Configuration('8.0', ['bcmath', 'pdo_pgsql', 'apcu'], false, 'yarn', 'mix')
+                new Configuration('8.0', ['bcmath', 'pdo_pgsql', 'apcu'], false, 'yarn', 'mix'),
             ],
         ];
     }

tests/Traits/InteractsWithTwigTest.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace BlameButton\LaravelDockerBuilder\Tests\Traits;
+
+use BlameButton\LaravelDockerBuilder\Tests\TestCase;
+use BlameButton\LaravelDockerBuilder\Traits\InteractsWithTwig;
+use Twig\Environment;
+use Twig\Error\LoaderError;
+use Twig\Loader\FilesystemLoader;
+
+/**
+ * @uses \BlameButton\LaravelDockerBuilder\DockerServiceProvider
+ * @uses package_path()
+ *
+ * @covers \BlameButton\LaravelDockerBuilder\Traits\InteractsWithTwig
+ */
+class InteractsWithTwigTest extends TestCase
+{
+    public function testItCreatesTwig(): void
+    {
+        /** @var InteractsWithTwig $class */
+        $class = $this->getObjectForTrait(InteractsWithTwig::class);
+
+        $twig = $class->twig();
+        self::assertInstanceOf(Environment::class, $twig);
+        $loader = $twig->getLoader();
+        self::assertInstanceOf(FilesystemLoader::class, $loader);
+        self::assertEquals([package_path('docker/template')], $loader->getPaths());
+    }
+
+    public function testItThrowsErrorOnMissingTemplates(): void
+    {
+        /** @var InteractsWithTwig $class */
+        $class = $this->getObjectForTrait(InteractsWithTwig::class);
+
+        $this->expectException(LoaderError::class);
+
+        $class->render('invalid-filename', []);
+    }
+
+    public function testItRendersNginxTemplate(): void
+    {
+        /** @var InteractsWithTwig $class */
+        $class = $this->getObjectForTrait(InteractsWithTwig::class);
+
+        $output = $class->render('nginx.dockerfile.twig', []);
+
+        self::assertStringContainsString('FROM nginx:1-alpine', $output);
+    }
+
+    public function testItRendersPhpTemplate(): void
+    {
+        /** @var InteractsWithTwig $class */
+        $class = $this->getObjectForTrait(InteractsWithTwig::class);
+
+        $output = $class->render('php.dockerfile.twig', [
+            'php_version' => '8.2',
+        ]);
+
+        self::assertStringContainsString('FROM php:8.2-fpm-alpine', $output);
+    }
+}