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 {
        $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() {
        $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);
    }

}