[TwigComponent] Add tests ComponentRenderer should pass

Author: smnandre

src/TwigComponent/tests/Fixtures/Component/FooBar/Baz.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\TwigComponent\Tests\Fixtures\Component\FooBar;
+
+use Symfony\UX\TwigComponent\Attribute\AsTwigComponent;
+
+/**
+ * @author Simon André <[email protected]>
+ */
+#[AsTwigComponent('FooBar:Baz')]
+final class Baz
+{
+}

src/TwigComponent/tests/Fixtures/EventListener/FooBarComponentTemplateListener.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\TwigComponent\Tests\Fixtures\EventListener;
+
+use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
+use Symfony\UX\TwigComponent\Event\PreRenderEvent;
+
+/**
+ * Change the template of "FooBarBaz:" components during PrePrenderEvent.
+ * Before:
+ *      FooBar:Baz -> FooBar/Baz.html.twig
+ * After:
+ *      FooBar:Baz -> FooBar/Baz.foo_bar.html.twig
+ *
+ * @see PreRenderEvent
+ */
+class FooBarComponentTemplateListener
+{
+    #[AsEventListener]
+    public function onPreRender(PreRenderEvent $event): void
+    {
+        $metadata = $event->getMetadata();
+        if (!str_starts_with($metadata->getName(), 'FooBar:')) {
+            return;
+        }
+
+        if (!str_ends_with($event->getTemplate(), '.html.twig')) {
+            return;
+        }
+
+        $template = substr($event->getTemplate(), 0, -strlen('.html.twig')).'.foo_bar.html.twig';
+        $event->setTemplate($template);
+    }
+}

src/TwigComponent/tests/Integration/ComponentEventTest.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\TwigComponent\Tests\Integration;
+
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use Twig\Environment;
+use Twig\Loader\ArrayLoader;
+
+/**
+ * The template can be updated by PreRender event listeners.
+ *
+ * @author Simon André <[email protected]>
+ */
+final class ComponentEventTest extends KernelTestCase
+{
+    /**
+     * @dataProvider provideFooBarSyntaxes
+     */
+    public function testTemplateIsUpdatedByEventListener(string $syntax): void
+    {
+        /** @var Environment $environment */
+        $environment = self::getContainer()->get(Environment::class);
+        $environment->setLoader(new ArrayLoader([
+            'components/FooBar/Baz.foo_bar.html.twig' => 'updated',
+            'components/FooBar/Baz.html.twig' => 'original',
+        ]));
+
+        $component = $environment->createTemplate($syntax);
+        $result = $component->render();
+
+        self::assertSame('updated', $result);
+    }
+
+    public static function provideFooBarSyntaxes(): iterable
+    {
+        yield 'TWIG component tag' => ['{% component "FooBar:Baz" %}{% endcomponent %}'];
+        yield 'TWIG component function' => ['{{ component("FooBar:Baz") }}'];
+        yield 'HTML self-closing tag' => ['<twig:FooBar:Baz />'];
+        yield 'HTML open-close tag' => ['<twig:FooBar:Baz></twig:FooBar:Baz>'];
+    }
+}