ComponentPluginManagerTest.php

<?php

declare (strict_types=1);
namespace Drupal\KernelTests\Components;

use Drupal\Core\Render\Component\Exception\ComponentNotFoundException;

/**
 * Tests the component plugin manager.
 *
 * @group sdc
 */
class ComponentPluginManagerTest extends ComponentKernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'system',
        'sdc_test',
        'sdc_test_replacements',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected static $themes = [
        'sdc_theme_test',
    ];
    
    /**
     * Test that components render correctly.
     */
    public function testFindEmptyMetadataFile() : void {
        // Test that empty component metadata files are valid, since there is no
        // required property.
        $this->assertNotEmpty($this->manager
            ->find('sdc_theme_test:bar'));
        // Test that if the folder name does not match the machine name, the
        // component is still available.
        $this->assertNotEmpty($this->manager
            ->find('sdc_theme_test:foo'));
    }
    
    /**
     * Test that the machine name is grabbed from the *.component.yml.
     *
     * And not from the enclosing directory.
     */
    public function testMismatchingFolderName() : void {
        $this->expectException(ComponentNotFoundException::class);
        $this->manager
            ->find('sdc_theme_test:mismatching-folder-name');
    }

}