class ConfigFieldMapperTest

class ConfigFieldMapperTest extends UnitTestCase {
  
  /**
   * The configuration field mapper to test.
   *
   * @var \Drupal\config_translation\ConfigFieldMapper
   */
  protected $configFieldMapper;
  
  /**
   * The field config instance used for testing.
   *
   * @var \Drupal\field\FieldConfigInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $entity;
  
  /**
   * The entity type manager used for testing.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $entityTypeManager;
  
  /**
   * The mocked event dispatcher.
   *
   * @var \Symfony\Contracts\EventDispatcher\EventDispatcherInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $eventDispatcher;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->entityTypeManager = $this->createMock('Drupal\\Core\\Entity\\EntityTypeManagerInterface');
    $this->entity = $this->createMock('Drupal\\field\\FieldConfigInterface');
    $definition = [
      'class' => '\\Drupal\\config_translation\\ConfigFieldMapper',
      'base_route_name' => 'entity.field_config.node_field_edit_form',
      'title' => '@label field',
      'names' => [],
      'entity_type' => 'field_config',
    ];
    $locale_config_manager = $this->getMockBuilder('Drupal\\locale\\LocaleConfigManager')
      ->disableOriginalConstructor()
      ->getMock();
    $this->eventDispatcher = $this->createMock('Symfony\\Contracts\\EventDispatcher\\EventDispatcherInterface');
    $this->configFieldMapper = new ConfigFieldMapper('node_fields', $definition, $this->getConfigFactoryStub(), $this->createMock('Drupal\\Core\\Config\\TypedConfigManagerInterface'), $locale_config_manager, $this->createMock('Drupal\\config_translation\\ConfigMapperManagerInterface'), $this->createMock('Drupal\\Core\\Routing\\RouteProviderInterface'), $this->getStringTranslationStub(), $this->entityTypeManager, $this->createMock('Drupal\\Core\\Language\\LanguageManagerInterface'), $this->eventDispatcher);
  }
  
  /**
   * Tests ConfigFieldMapper::setEntity().
   *
   * @covers ::setEntity
   */
  public function testSetEntity() : void {
    $entity_type = $this->createMock('Drupal\\Core\\Config\\Entity\\ConfigEntityTypeInterface');
    $entity_type->expects($this->any())
      ->method('getConfigPrefix')
      ->willReturn('config_prefix');
    $this->entityTypeManager
      ->expects($this->any())
      ->method('getDefinition')
      ->willReturn($entity_type);
    $field_storage = $this->createMock('Drupal\\field\\FieldStorageConfigInterface');
    $field_storage->expects($this->any())
      ->method('id')
      ->willReturn('field_storage_id');
    $this->entity
      ->expects($this->any())
      ->method('getFieldStorageDefinition')
      ->willReturn($field_storage);
    $result = $this->configFieldMapper
      ->setEntity($this->entity);
    $this->assertTrue($result);
    // Ensure that the configuration name was added to the mapper.
    $plugin_definition = $this->configFieldMapper
      ->getPluginDefinition();
    $this->assertContains('config_prefix.field_storage_id', $plugin_definition['names']);
    // Make sure setEntity() returns FALSE when called a second time.
    $result = $this->configFieldMapper
      ->setEntity($this->entity);
    $this->assertFalse($result);
  }

}