class ResponsiveImageFormatterTest

class ResponsiveImageFormatterTest extends FieldKernelTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'breakpoint',
    'file',
    'image',
    'responsive_image',
  ];
  
  /**
   * The entity type.
   */
  protected string $entityType;
  
  /**
   * The name of the image field to use for testing.
   */
  protected string $fieldName;
  
  /**
   * Entity view display.
   */
  protected EntityViewDisplayInterface $display;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installConfig([
      'field',
    ]);
    $this->installEntitySchema('entity_test');
    $this->installEntitySchema('file');
    $this->installSchema('file', [
      'file_usage',
    ]);
    $this->entityType = 'entity_test';
    $bundle = 'entity_test';
    $this->fieldName = $this->randomMachineName();
    // Create a responsive image style.
    ResponsiveImageStyle::create([
      'id' => 'foo',
      'label' => 'Foo',
    ])->save();
    // Create an image field to be used with a responsive image formatter.
    FieldStorageConfig::create([
      'entity_type' => $this->entityType,
      'field_name' => $this->fieldName,
      'type' => 'image',
      'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
    ])
      ->save();
    FieldConfig::create([
      'entity_type' => $this->entityType,
      'field_name' => $this->fieldName,
      'bundle' => $bundle,
      'settings' => [
        'file_extensions' => 'jpg',
      ],
    ])
      ->save();
    /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display */
    $this->display = EntityViewDisplay::create([
      'targetEntityType' => 'entity_test',
      'bundle' => 'entity_test',
      'mode' => 'default',
    ]);
    $this->display
      ->setComponent($this->fieldName, [
      'type' => 'responsive_image',
      'label' => 'hidden',
      'settings' => [
        'responsive_image_style' => 'foo',
        'image_link' => 'content',
      ],
    ])
      ->save();
  }
  
  /**
   * Tests Image Formatter URL options handling.
   */
  public function testImageFormatterUrlOptions() : void {
    // Create a test entity with the responsive image field set.
    $entity = EntityTest::create([
      'name' => $this->randomMachineName(),
    ]);
    $entity->{$this->fieldName}
      ->generateSampleItems(1);
    $entity->save();
    // Generate the render array to verify URL options are as expected.
    $build = $this->display
      ->build($entity);
    $this->assertInstanceOf(Url::class, $build[$this->fieldName][0]['#url']);
    $build[$this->fieldName][0]['#url']
      ->setOption('attributes', [
      'data-attributes-test' => 'test123',
    ]);
    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container
      ->get('renderer');
    $output = $renderer->renderRoot($build[$this->fieldName][0]);
    $this->assertStringContainsString('<a href="' . $entity->toUrl()
      ->toString() . '" data-attributes-test="test123"', (string) $output);
  }

}