class MediaSourceTest in Drupal 10

Tests media source plugins related logic.

@group media

Hierarchy

• class \Drupal\KernelTests\KernelTestBase extends \PHPUnit\Framework\TestCase implements ServiceProviderInterface uses \Drupal\Tests\PhpUnitCompatibilityTrait, \Symfony\Bridge\PhpUnit\ExpectDeprecationTrait, AssertContentTrait, ConfigTestTrait, ExtensionListTestTrait, RandomGeneratorTrait, TestRequirementsTrait, PhpUnitWarnings
  • class \Drupal\Tests\media\Kernel\MediaKernelTestBase uses MediaTypeCreationTrait
    • class \Drupal\Tests\media\Kernel\MediaSourceTest

File

core/modules/media/tests/src/Kernel/MediaSourceTest.php, line 16

Namespace

Drupal\Tests\media\Kernel

class MediaSourceTest extends MediaKernelTestBase {

  /**
   * Tests that metadata is correctly mapped irrespective of how media is saved.
   */
  public function testSave() {
    $field_storage = FieldStorageConfig::create([
      'entity_type' => 'media',
      'field_name' => 'field_to_map_to',
      'type' => 'string',
    ]);
    $field_storage
      ->save();
    FieldConfig::create([
      'field_storage' => $field_storage,
      'bundle' => $this->testMediaType
        ->id(),
      'label' => 'Field to map to',
    ])
      ->save();

    // Set an arbitrary metadata value to be mapped.
    $this->container
      ->get('state')
      ->set('media_source_test_attributes', [
      'attribute_to_map' => [
        'title' => 'Attribute to map',
        'value' => 'Snowball',
      ],
      'thumbnail_uri' => [
        'value' => 'public://TheSisko.png',
      ],
    ]);
    $this->testMediaType
      ->setFieldMap([
      'attribute_to_map' => 'field_to_map_to',
    ])
      ->save();

    /** @var \Drupal\Core\Entity\EntityStorageInterface $storage */
    $storage = $this->container
      ->get('entity_type.manager')
      ->getStorage('media');

    /** @var \Drupal\media\MediaInterface $a */
    $a = $storage
      ->create([
      'bundle' => $this->testMediaType
        ->id(),
    ]);

    /** @var \Drupal\media\MediaInterface $b */
    $b = $storage
      ->create([
      'bundle' => $this->testMediaType
        ->id(),
    ]);

    // Set a random source value on both items.
    $a
      ->set($a
      ->getSource()
      ->getSourceFieldDefinition($a->bundle->entity)
      ->getName(), $this
      ->randomString());
    $b
      ->set($b
      ->getSource()
      ->getSourceFieldDefinition($b->bundle->entity)
      ->getName(), $this
      ->randomString());
    $a
      ->save();
    $storage
      ->save($b);

    // Assert that the default name was mapped into the name field for both
    // media items.
    $this
      ->assertFalse($a
      ->get('name')
      ->isEmpty());
    $this
      ->assertFalse($b
      ->get('name')
      ->isEmpty());

    // Assert that arbitrary metadata was mapped correctly.
    $this
      ->assertFalse($a
      ->get('field_to_map_to')
      ->isEmpty());
    $this
      ->assertFalse($b
      ->get('field_to_map_to')
      ->isEmpty());

    // Assert that the thumbnail was mapped correctly from the source.
    $this
      ->assertSame('public://TheSisko.png', $a->thumbnail->entity
      ->getFileUri());
    $this
      ->assertSame('public://TheSisko.png', $b->thumbnail->entity
      ->getFileUri());
  }

  /**
   * Tests default media name functionality.
   */
  public function testDefaultName() {

    // Make sure that the default name is set if not provided by the user.

    /** @var \Drupal\media\MediaInterface $media */
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
    ]);
    $media_source = $media
      ->getSource();
    $this
      ->assertSame('default_name', $media_source
      ->getPluginDefinition()['default_name_metadata_attribute'], 'Default metadata attribute is not used for the default name.');
    $this
      ->assertSame('media:' . $media
      ->bundle() . ':' . $media
      ->uuid(), $media_source
      ->getMetadata($media, 'default_name'), 'Value of the default name metadata attribute does not look correct.');
    $this
      ->assertSame('media:' . $media
      ->bundle() . ':' . $media
      ->uuid(), $media
      ->getName(), 'Default name was not used correctly by getName().');
    $this
      ->assertSame($media
      ->getName(), $media
      ->label(), 'Default name and label are not the same.');
    $media
      ->save();
    $this
      ->assertSame('media:' . $media
      ->bundle() . ':' . $media
      ->uuid(), $media
      ->getName(), 'Default name was not saved correctly.');
    $this
      ->assertSame($media
      ->getName(), $media
      ->label(), 'The label changed during save.');

    // Make sure that the user-supplied name is used.

    /** @var \Drupal\media\MediaInterface $media */
    $name = 'User-supplied name';
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'name' => $name,
    ]);
    $media_source = $media
      ->getSource();
    $this
      ->assertSame('default_name', $media_source
      ->getPluginDefinition()['default_name_metadata_attribute'], 'Default metadata attribute is not used for the default name.');
    $this
      ->assertSame('media:' . $media
      ->bundle() . ':' . $media
      ->uuid(), $media_source
      ->getMetadata($media, 'default_name'), 'Value of the default name metadata attribute does not look correct.');
    $media
      ->save();
    $this
      ->assertSame($name, $media
      ->getName(), 'User-supplied name was not set correctly.');
    $this
      ->assertSame($media
      ->getName(), $media
      ->label(), 'The user-supplied name does not match the label.');

    // Change the default name attribute and see if it is used to set the name.
    $name = 'Old Major';
    \Drupal::state()
      ->set('media_source_test_attributes', [
      'alternative_name' => [
        'title' => 'Alternative name',
        'value' => $name,
      ],
    ]);
    \Drupal::state()
      ->set('media_source_test_definition', [
      'default_name_metadata_attribute' => 'alternative_name',
    ]);

    /** @var \Drupal\media\MediaInterface $media */
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
    ]);
    $media_source = $media
      ->getSource();
    $this
      ->assertSame('alternative_name', $media_source
      ->getPluginDefinition()['default_name_metadata_attribute'], 'Correct metadata attribute is not used for the default name.');
    $this
      ->assertSame($name, $media_source
      ->getMetadata($media, 'alternative_name'), 'Value of the default name metadata attribute does not look correct.');
    $media
      ->save();
    $this
      ->assertSame($name, $media
      ->getName(), 'Default name was not set correctly.');
    $this
      ->assertSame($media
      ->getName(), $media
      ->label(), 'The default name does not match the label.');
  }

  /**
   * Tests metadata mapping functionality.
   */
  public function testMetadataMapping() {
    $field_name = 'field_to_map_to';
    $attribute_name = 'attribute_to_map';
    $storage = FieldStorageConfig::create([
      'entity_type' => 'media',
      'field_name' => $field_name,
      'type' => 'string',
    ]);
    $storage
      ->save();
    FieldConfig::create([
      'field_storage' => $storage,
      'bundle' => $this->testMediaType
        ->id(),
      'label' => 'Field to map to',
    ])
      ->save();

    // Save the entity without defining the metadata mapping and check that the
    // field stays empty.

    /** @var \Drupal\media\MediaInterface $media */
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'field_media_test' => 'some_value',
    ]);
    $media
      ->save();
    $this
      ->assertEmpty($media
      ->get($field_name)->value, 'Field stayed empty.');

    // Make sure that source plugin returns NULL for non-existing fields.
    $this->testMediaType
      ->setFieldMap([
      'not_here_at_all' => $field_name,
    ])
      ->save();
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'field_media_test' => 'some_value',
    ]);
    $media_source = $media
      ->getSource();
    $this
      ->assertNull($media_source
      ->getMetadata($media, 'not_here_at_all'), 'NULL is not returned if asking for a value of non-existing metadata.');
    $media
      ->save();
    $this
      ->assertTrue($media
      ->get($field_name)
      ->isEmpty(), 'Non-existing metadata attribute was wrongly mapped to the field.');

    // Define mapping and make sure that the value was stored in the field.
    \Drupal::state()
      ->set('media_source_test_attributes', [
      $attribute_name => [
        'title' => 'Attribute to map',
        'value' => 'Snowball',
      ],
    ]);
    $this->testMediaType
      ->setFieldMap([
      $attribute_name => $field_name,
    ])
      ->save();
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'field_media_test' => 'some_value',
    ]);
    $media_source = $media
      ->getSource();
    $this
      ->assertSame('Snowball', $media_source
      ->getMetadata($media, $attribute_name), 'Value of the metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('Snowball', $media
      ->get($field_name)->value, 'Metadata attribute was not mapped to the field.');

    // Change the metadata attribute value and re-save the entity. Field value
    // should stay the same.
    \Drupal::state()
      ->set('media_source_test_attributes', [
      $attribute_name => [
        'title' => 'Attribute to map',
        'value' => 'Pinkeye',
      ],
    ]);
    $this
      ->assertSame('Pinkeye', $media_source
      ->getMetadata($media, $attribute_name), 'Value of the metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('Snowball', $media
      ->get($field_name)->value, 'Metadata attribute was not mapped to the field.');

    // Now change the value of the source field and make sure that the mapped
    // values update too.
    $this
      ->assertSame('Pinkeye', $media_source
      ->getMetadata($media, $attribute_name), 'Value of the metadata attribute is not correct.');
    $media
      ->set('field_media_test', 'some_new_value');
    $media
      ->save();
    $this
      ->assertSame('Pinkeye', $media
      ->get($field_name)->value, 'Metadata attribute was not mapped to the field.');

    // Remove the value of the mapped field and make sure that it is re-mapped
    // on save.
    \Drupal::state()
      ->set('media_source_test_attributes', [
      $attribute_name => [
        'title' => 'Attribute to map',
        'value' => 'Snowball',
      ],
    ]);
    $media->{$field_name}->value = NULL;
    $this
      ->assertSame('Snowball', $media_source
      ->getMetadata($media, $attribute_name), 'Value of the metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('Snowball', $media
      ->get($field_name)->value, 'Metadata attribute was not mapped to the field.');
  }

  /**
   * Tests the getSourceFieldValue() method.
   */
  public function testGetSourceFieldValue() {

    /** @var \Drupal\media\MediaInterface $media */
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'field_media_test' => 'some_value',
    ]);
    $media
      ->save();
    $media_source = $media
      ->getSource();
    $this
      ->assertSame('some_value', $media_source
      ->getSourceFieldValue($media));

    // Test that NULL is returned if there is no value in the source field.
    $media
      ->set('field_media_test', NULL)
      ->save();
    $this
      ->assertNull($media_source
      ->getSourceFieldValue($media));
  }

  /**
   * Tests the thumbnail functionality.
   */
  public function testThumbnail() {
    file_put_contents('public://thumbnail1.jpg', '');
    file_put_contents('public://thumbnail2.jpg', '');

    // Save a media item and make sure thumbnail was added.
    \Drupal::state()
      ->set('media_source_test_attributes', [
      'thumbnail_uri' => [
        'value' => 'public://thumbnail1.jpg',
      ],
    ]);

    /** @var \Drupal\media\MediaInterface $media */
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'name' => 'Mr. Jones',
      'field_media_test' => 'some_value',
    ]);
    $media_source = $media
      ->getSource();
    $this
      ->assertSame('public://thumbnail1.jpg', $media_source
      ->getMetadata($media, 'thumbnail_uri'), 'Value of the thumbnail metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('public://thumbnail1.jpg', $media->thumbnail->entity
      ->getFileUri(), 'Thumbnail was not added to the media item.');

    // We expect the title not to be present on the Thumbnail.
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('', $media->thumbnail->alt);

    // Now change the metadata attribute and make sure that the thumbnail stays
    // the same.
    \Drupal::state()
      ->set('media_source_test_attributes', [
      'thumbnail_uri' => [
        'value' => 'public://thumbnail2.jpg',
      ],
    ]);
    $this
      ->assertSame('public://thumbnail2.jpg', $media_source
      ->getMetadata($media, 'thumbnail_uri'), 'Value of the thumbnail metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('public://thumbnail1.jpg', $media->thumbnail->entity
      ->getFileUri(), 'Thumbnail was not preserved.');
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('', $media->thumbnail->alt);

    // Remove the thumbnail and make sure that it is auto-updated on save.
    $media->thumbnail->target_id = NULL;
    $this
      ->assertSame('public://thumbnail2.jpg', $media_source
      ->getMetadata($media, 'thumbnail_uri'), 'Value of the thumbnail metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('public://thumbnail2.jpg', $media->thumbnail->entity
      ->getFileUri(), 'New thumbnail was not added to the media item.');
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('', $media->thumbnail->alt);

    // Change the metadata attribute again, change the source field value too
    // and make sure that the thumbnail updates.
    \Drupal::state()
      ->set('media_source_test_attributes', [
      'thumbnail_uri' => [
        'value' => 'public://thumbnail1.jpg',
      ],
    ]);
    $media->field_media_test->value = 'some_new_value';
    $this
      ->assertSame('public://thumbnail1.jpg', $media_source
      ->getMetadata($media, 'thumbnail_uri'), 'Value of the thumbnail metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('public://thumbnail1.jpg', $media->thumbnail->entity
      ->getFileUri(), 'New thumbnail was not added to the media item.');
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('', $media->thumbnail->alt);

    // Change the thumbnail metadata attribute and make sure that the thumbnail
    // is set correctly.
    \Drupal::state()
      ->set('media_source_test_attributes', [
      'thumbnail_uri' => [
        'value' => 'public://thumbnail1.jpg',
      ],
      'alternative_thumbnail_uri' => [
        'value' => 'public://thumbnail2.jpg',
      ],
    ]);
    \Drupal::state()
      ->set('media_source_test_definition', [
      'thumbnail_uri_metadata_attribute' => 'alternative_thumbnail_uri',
    ]);
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'name' => 'Mr. Jones',
      'field_media_test' => 'some_value',
    ]);
    $media_source = $media
      ->getSource();
    $this
      ->assertSame('public://thumbnail1.jpg', $media_source
      ->getMetadata($media, 'thumbnail_uri'), 'Value of the metadata attribute is not correct.');
    $this
      ->assertSame('public://thumbnail2.jpg', $media_source
      ->getMetadata($media, 'alternative_thumbnail_uri'), 'Value of the thumbnail metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('public://thumbnail2.jpg', $media->thumbnail->entity
      ->getFileUri(), 'Correct metadata attribute was not used for the thumbnail.');
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('', $media->thumbnail->alt);

    // Enable queued thumbnails and make sure that the entity gets the default
    // thumbnail initially.
    \Drupal::state()
      ->set('media_source_test_definition', []);
    \Drupal::state()
      ->set('media_source_test_attributes', [
      'thumbnail_uri' => [
        'value' => 'public://thumbnail1.jpg',
      ],
    ]);
    $this->testMediaType
      ->setQueueThumbnailDownloadsStatus(TRUE)
      ->save();
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'name' => 'Mr. Jones',
      'field_media_test' => 'some_value',
    ]);
    $this
      ->assertSame('public://thumbnail1.jpg', $media
      ->getSource()
      ->getMetadata($media, 'thumbnail_uri'), 'Value of the metadata attribute is not correct.');
    $media
      ->save();
    $this
      ->assertSame('public://media-icons/generic/generic.png', $media->thumbnail->entity
      ->getFileUri(), 'Default thumbnail was not set initially.');
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('', $media->thumbnail->alt);

    // Process the queue item and make sure that the thumbnail was updated too.
    $queue_name = 'media_entity_thumbnail';

    /** @var \Drupal\Core\Queue\QueueWorkerInterface $queue_worker */
    $queue_worker = \Drupal::service('plugin.manager.queue_worker')
      ->createInstance($queue_name);
    $queue = \Drupal::queue($queue_name);
    $this
      ->assertSame(1, $queue
      ->numberOfItems(), 'Item was not added to the queue.');
    $item = $queue
      ->claimItem();
    $this
      ->assertSame($media
      ->id(), $item->data['id'], 'Queue item that was created does not belong to the correct entity.');
    $queue_worker
      ->processItem($item->data);
    $queue
      ->deleteItem($item);
    $this
      ->assertSame(0, $queue
      ->numberOfItems(), 'Item was not removed from the queue.');
    $media = Media::load($media
      ->id());
    $this
      ->assertSame('public://thumbnail1.jpg', $media->thumbnail->entity
      ->getFileUri(), 'Thumbnail was not updated by the queue.');
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('', $media->thumbnail->alt);

    // Set the alt metadata attribute and make sure it's used for the thumbnail.
    \Drupal::state()
      ->set('media_source_test_definition', [
      'thumbnail_alt_metadata_attribute' => 'alt',
    ]);
    \Drupal::state()
      ->set('media_source_test_attributes', [
      'alt' => [
        'value' => 'This will be alt.',
      ],
    ]);
    $media = Media::create([
      'bundle' => $this->testMediaType
        ->id(),
      'name' => 'Boxer',
      'field_media_test' => 'some_value',
    ]);
    $media
      ->save();
    $this
      ->assertSame('Boxer', $media
      ->getName(), 'Correct name was not set on the media item.');
    $this
      ->assertEmpty($media->thumbnail->title);
    $this
      ->assertSame('This will be alt.', $media->thumbnail->alt);
  }

  /**
   * Tests the media item constraints functionality.
   */
  public function testConstraints() {

    // Test entity constraints.
    \Drupal::state()
      ->set('media_source_test_entity_constraints', [
      'MediaTestConstraint' => [],
    ]);

    // Create a media item media that uses a source plugin with constraints and
    // make sure the constraints works as expected when validating.

    /** @var \Drupal\media\MediaInterface $media */
    $media = Media::create([
      'bundle' => $this->testConstraintsMediaType
        ->id(),
      'name' => 'I do not like Drupal',
      'field_media_test_constraints' => 'Not checked',
    ]);

    // Validate the entity and make sure violation is reported.

    /** @var \Drupal\Core\Entity\EntityConstraintViolationListInterface $violations */
    $violations = $media
      ->validate();
    $this
      ->assertCount(1, $violations, 'Expected number of validations not found.');
    $this
      ->assertEquals('Inappropriate text.', $violations
      ->get(0)
      ->getMessage(), 'Incorrect constraint validation message found.');

    // Fix the violation and make sure it is not reported anymore.
    $media
      ->setName('I love Drupal!');
    $violations = $media
      ->validate();
    $this
      ->assertCount(0, $violations, 'Expected number of validations not found.');

    // Save and make sure it succeeded.
    $this
      ->assertEmpty($media
      ->id(), 'Entity ID was found.');
    $media
      ->save();
    $this
      ->assertNotEmpty($media
      ->id(), 'Entity ID was not found.');
    $this
      ->assertSame($media
      ->getName(), 'I love Drupal!');

    // Test source field constraints.
    \Drupal::state()
      ->set('media_source_test_field_constraints', [
      'MediaTestConstraint' => [],
    ]);
    \Drupal::state()
      ->set('media_source_test_entity_constraints', []);

    // Create media that uses source with constraints and make sure it can't
    // be saved without validating them.

    /** @var \Drupal\media\MediaInterface $media */
    $media = Media::create([
      'bundle' => $this->testConstraintsMediaType
        ->id(),
      'name' => 'Not checked',
      'field_media_test_constraints' => 'I do not like Drupal',
    ]);

    // Validate the entity and make sure violation is reported.

    /** @var \Drupal\Core\Entity\EntityConstraintViolationListInterface $violations */
    $violations = $media
      ->validate();
    $this
      ->assertCount(1, $violations, 'Expected number of validations not found.');
    $this
      ->assertEquals('Inappropriate text.', $violations
      ->get(0)
      ->getMessage(), 'Incorrect constraint validation message found.');

    // Fix the violation and make sure it is not reported anymore.
    $media
      ->set('field_media_test_constraints', 'I love Drupal!');
    $violations = $media
      ->validate();
    $this
      ->assertCount(0, $violations, 'Expected number of validations not found.');

    // Save and make sure it succeeded.
    $this
      ->assertEmpty($media
      ->id(), 'Entity ID was found.');
    $media
      ->save();
    $this
      ->assertNotEmpty($media
      ->id(), 'Entity ID was not found.');
  }

  /**
   * Tests logic related to the automated source field creation.
   */
  public function testSourceFieldCreation() {

    /** @var \Drupal\media\MediaTypeInterface $type */
    $type = MediaType::create([
      'id' => 'test_type',
      'label' => 'Test type',
      'source' => 'test',
    ]);

    /** @var \Drupal\field\Entity\FieldConfig $field */
    $field = $type
      ->getSource()
      ->createSourceField($type);

    /** @var \Drupal\field\Entity\FieldStorageConfig $field_storage */
    $field_storage = $field
      ->getFieldStorageDefinition();

    // Test field storage.
    $this
      ->assertTrue($field_storage
      ->isNew(), 'Field storage is saved automatically.');
    $this
      ->assertFalse($field_storage
      ->isLocked(), 'Field storage is not locked.');
    $this
      ->assertSame('string', $field_storage
      ->getType(), 'Field is not of correct type.');
    $this
      ->assertSame('field_media_test_1', $field_storage
      ->getName(), 'Incorrect field name is used.');
    $this
      ->assertSame('media', $field_storage
      ->getTargetEntityTypeId(), 'Field is not targeting media entities.');

    // Test field.
    $this
      ->assertTrue($field
      ->isNew(), 'Field is saved automatically.');
    $this
      ->assertSame('field_media_test_1', $field
      ->getName(), 'Incorrect field name is used.');
    $this
      ->assertSame('string', $field
      ->getType(), 'Field is of incorrect type.');
    $this
      ->assertTrue($field
      ->isRequired(), 'Field is not required.');
    $this
      ->assertEquals('Test source', $field
      ->label(), 'Incorrect label is used.');
    $this
      ->assertSame('test_type', $field
      ->getTargetBundle(), 'Field is not targeting correct bundle.');

    // Fields should be automatically saved only when creating the media type
    // using the media type creation form. Make sure that they are not saved
    // when creating a media type programmatically.
    // Drupal\Tests\media\FunctionalJavascript\MediaTypeCreationTest is testing
    // form part of the functionality.
    $type
      ->save();
    $storage = FieldStorageConfig::load('media.field_media_test_1');
    $this
      ->assertNull($storage, 'Field storage was not saved.');
    $field = FieldConfig::load('media.test_type.field_media_test_1');
    $this
      ->assertNull($field, 'Field storage was not saved.');

    // Test the plugin with a different default source field type.
    $type = MediaType::create([
      'id' => 'test_constraints_type',
      'label' => 'Test type with constraints',
      'source' => 'test_constraints',
    ]);
    $field = $type
      ->getSource()
      ->createSourceField($type);
    $field_storage = $field
      ->getFieldStorageDefinition();

    // Test field storage.
    $this
      ->assertTrue($field_storage
      ->isNew(), 'Field storage is saved automatically.');
    $this
      ->assertFalse($field_storage
      ->isLocked(), 'Field storage is not locked.');
    $this
      ->assertSame('string_long', $field_storage
      ->getType(), 'Field is of incorrect type.');
    $this
      ->assertSame('field_media_test_constraints_1', $field_storage
      ->getName(), 'Incorrect field name is used.');
    $this
      ->assertSame('media', $field_storage
      ->getTargetEntityTypeId(), 'Field is not targeting media entities.');

    // Test field.
    $this
      ->assertTrue($field
      ->isNew(), 'Field is saved automatically.');
    $this
      ->assertSame('field_media_test_constraints_1', $field
      ->getName(), 'Incorrect field name is used.');
    $this
      ->assertSame('string_long', $field
      ->getType(), 'Field is of incorrect type.');
    $this
      ->assertTrue($field
      ->isRequired(), 'Field is not required.');
    $this
      ->assertEquals('Test source with constraints', $field
      ->label(), 'Incorrect label is used.');
    $this
      ->assertSame('test_constraints_type', $field
      ->getTargetBundle(), 'Field is not targeting correct bundle.');
  }

  /**
   * Tests configuration form submit handler on the base media source plugin.
   */
  public function testSourceConfigurationSubmit() {

    /** @var \Drupal\media\MediaSourceManager $manager */
    $manager = $this->container
      ->get('plugin.manager.media.source');
    $form = [];
    $form_state = new FormState();
    $form_state
      ->setValues([
      'test_config_value' => 'Somewhere over the rainbow.',
    ]);

    /** @var \Drupal\media\MediaSourceInterface $source */
    $source = $manager
      ->createInstance('test', []);
    $source
      ->submitConfigurationForm($form, $form_state);
    $expected = [
      'source_field' => 'field_media_test_1',
      'test_config_value' => 'Somewhere over the rainbow.',
    ];
    $this
      ->assertSame($expected, $source
      ->getConfiguration(), 'Submitted values were saved correctly.');

    // Try to save a NULL value.
    $form_state
      ->setValue('test_config_value', NULL);
    $source
      ->submitConfigurationForm($form, $form_state);
    $expected['test_config_value'] = NULL;
    $this
      ->assertSame($expected, $source
      ->getConfiguration(), 'Submitted values were saved correctly.');

    // Make sure that the config keys are determined correctly even if the
    // existing value is NULL.
    $form_state
      ->setValue('test_config_value', 'Somewhere over the rainbow.');
    $source
      ->submitConfigurationForm($form, $form_state);
    $expected['test_config_value'] = 'Somewhere over the rainbow.';
    $this
      ->assertSame($expected, $source
      ->getConfiguration(), 'Submitted values were saved correctly.');

    // Make sure that a non-relevant value will be skipped.
    $form_state
      ->setValue('not_relevant', 'Should not be saved in the plugin.');
    $source
      ->submitConfigurationForm($form, $form_state);
    $this
      ->assertSame($expected, $source
      ->getConfiguration(), 'Submitted values were saved correctly.');
  }

  /**
   * Tests different display options for the source field.
   */
  public function testDifferentSourceFieldDisplays() {
    $id = 'test_different_displays';
    $field_name = 'field_media_different_display';
    $this
      ->createMediaTypeViaForm($id, $field_name);

    // Source field not in displays.
    $display = \Drupal::service('entity_display.repository')
      ->getViewDisplay('media', $id);
    $components = $display
      ->getComponents();
    $this
      ->assertArrayHasKey($field_name, $components);
    $this
      ->assertSame('entity_reference_entity_id', $components[$field_name]['type']);
    $display = \Drupal::service('entity_display.repository')
      ->getFormDisplay('media', $id);
    $components = $display
      ->getComponents();
    $this
      ->assertArrayHasKey($field_name, $components);
    $this
      ->assertSame('entity_reference_autocomplete_tags', $components[$field_name]['type']);
  }

  /**
   * Tests hidden source field in media type.
   */
  public function testHiddenSourceField() {
    $id = 'test_hidden_source_field';
    $field_name = 'field_media_hidden';
    $this
      ->createMediaTypeViaForm($id, $field_name);

    // Source field not in displays.
    $display = \Drupal::service('entity_display.repository')
      ->getViewDisplay('media', $id);
    $this
      ->assertArrayNotHasKey($field_name, $display
      ->getComponents());
    $display = \Drupal::service('entity_display.repository')
      ->getFormDisplay('media', $id);
    $this
      ->assertArrayNotHasKey($field_name, $display
      ->getComponents());
  }

  /**
   * Creates a media type via form submit.
   *
   * @param string $source_plugin_id
   *   Source plugin ID.
   * @param string $field_name
   *   Source field name.
   */
  protected function createMediaTypeViaForm($source_plugin_id, $field_name) {

    /** @var \Drupal\media\MediaTypeInterface $type */
    $type = MediaType::create([
      'source' => $source_plugin_id,
    ]);
    $form = $this->container
      ->get('entity_type.manager')
      ->getFormObject('media_type', 'add')
      ->setEntity($type);
    $form_state = new FormState();
    $form_state
      ->setValues([
      'label' => 'Test type',
      'id' => $source_plugin_id,
      'op' => 'Save',
    ]);

    /** @var \Drupal\Core\Entity\EntityFieldManagerInterface $field_manager */
    $field_manager = \Drupal::service('entity_field.manager');

    // Source field not created yet.
    $fields = $field_manager
      ->getFieldDefinitions('media', $source_plugin_id);
    $this
      ->assertArrayNotHasKey($field_name, $fields);
    \Drupal::formBuilder()
      ->submitForm($form, $form_state);

    // Source field exists now.
    $fields = $field_manager
      ->getFieldDefinitions('media', $source_plugin_id);
    $this
      ->assertArrayHasKey($field_name, $fields);
  }

}