class ContentEntityNormalizerTest

class ContentEntityNormalizerTest extends UnitTestCase {
    
    /**
     * The mock serializer.
     *
     * @var \Symfony\Component\Serializer\SerializerInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $serializer;
    
    /**
     * The normalizer under test.
     *
     * @var \Drupal\serialization\Normalizer\ContentEntityNormalizer
     */
    protected $contentEntityNormalizer;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        $entity_field_manager = $this->createMock(EntityFieldManagerInterface::class);
        $entity_type_manager = $this->createMock(EntityTypeManagerInterface::class);
        $entity_type_repository = $this->createMock(EntityTypeRepositoryInterface::class);
        $this->contentEntityNormalizer = new ContentEntityNormalizer($entity_type_manager, $entity_type_repository, $entity_field_manager);
        $this->serializer = $this->getMockBuilder('Symfony\\Component\\Serializer\\Serializer')
            ->disableOriginalConstructor()
            ->onlyMethods([
            'normalize',
        ])
            ->getMock();
        $this->contentEntityNormalizer
            ->setSerializer($this->serializer);
    }
    
    /**
     * @covers ::supportsNormalization
     */
    public function testSupportsNormalization() {
        $content_mock = $this->createMock('Drupal\\Core\\Entity\\ContentEntityInterface');
        $config_mock = $this->createMock('Drupal\\Core\\Config\\Entity\\ConfigEntityInterface');
        $this->assertTrue($this->contentEntityNormalizer
            ->supportsNormalization($content_mock));
        $this->assertFalse($this->contentEntityNormalizer
            ->supportsNormalization($config_mock));
    }
    
    /**
     * Tests the normalize() method.
     *
     * @covers ::normalize
     */
    public function testNormalize() {
        $this->serializer
            ->expects($this->any())
            ->method('normalize')
            ->with($this->containsOnlyInstancesOf('Drupal\\Core\\Field\\FieldItemListInterface'), 'test_format', [
            'account' => NULL,
        ])
            ->willReturn('test');
        $definitions = [
            'field_accessible_external' => $this->createMockFieldListItem(TRUE, FALSE),
            'field_non-accessible_external' => $this->createMockFieldListItem(FALSE, FALSE),
            'field_accessible_internal' => $this->createMockFieldListItem(TRUE, TRUE),
            'field_non-accessible_internal' => $this->createMockFieldListItem(FALSE, TRUE),
        ];
        $content_entity_mock = $this->createMockForContentEntity($definitions);
        $normalized = $this->contentEntityNormalizer
            ->normalize($content_entity_mock, 'test_format');
        $this->assertArrayHasKey('field_accessible_external', $normalized);
        $this->assertEquals('test', $normalized['field_accessible_external']);
        $this->assertArrayNotHasKey('field_non-accessible_external', $normalized);
        $this->assertArrayNotHasKey('field_accessible_internal', $normalized);
        $this->assertArrayNotHasKey('field_non-accessible_internal', $normalized);
    }
    
    /**
     * Tests the normalize() method with account context passed.
     *
     * @covers ::normalize
     */
    public function testNormalizeWithAccountContext() {
        $mock_account = $this->createMock('Drupal\\Core\\Session\\AccountInterface');
        $context = [
            'account' => $mock_account,
        ];
        $this->serializer
            ->expects($this->any())
            ->method('normalize')
            ->with($this->containsOnlyInstancesOf('Drupal\\Core\\Field\\FieldItemListInterface'), 'test_format', $context)
            ->willReturn('test');
        // The mock account should get passed directly into the access() method on
        // field items from $context['account'].
        $definitions = [
            'field_1' => $this->createMockFieldListItem(TRUE, FALSE, $mock_account),
            'field_2' => $this->createMockFieldListItem(FALSE, FALSE, $mock_account),
        ];
        $content_entity_mock = $this->createMockForContentEntity($definitions);
        $normalized = $this->contentEntityNormalizer
            ->normalize($content_entity_mock, 'test_format', $context);
        $this->assertArrayHasKey('field_1', $normalized);
        $this->assertEquals('test', $normalized['field_1']);
        $this->assertArrayNotHasKey('field_2', $normalized);
    }
    
    /**
     * Creates a mock content entity.
     *
     * @param $definitions
     *   The properties the will be returned.
     *
     * @return \PHPUnit\Framework\MockObject\MockObject
     */
    public function createMockForContentEntity($definitions) {
        $content_entity_mock = $this->getMockBuilder('Drupal\\Core\\Entity\\ContentEntityBase')
            ->disableOriginalConstructor()
            ->onlyMethods([
            'getTypedData',
        ])
            ->getMockForAbstractClass();
        $typed_data = $this->prophesize(ComplexDataInterface::class);
        $typed_data->getProperties(TRUE)
            ->willReturn($definitions)
            ->shouldBeCalled();
        $content_entity_mock->expects($this->any())
            ->method('getTypedData')
            ->willReturn($typed_data->reveal());
        return $content_entity_mock;
    }
    
    /**
     * Creates a mock field list item.
     *
     * @param bool $access
     *   The value that access() will return.
     * @param bool $internal
     *   The value that isInternal() will return.
     * @param \Drupal\Core\Session\AccountInterface $user_context
     *   The user context used for the access check.
     *
     * @return \Drupal\Core\Field\FieldItemListInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected function createMockFieldListItem($access, $internal, AccountInterface $user_context = NULL) {
        $data_definition = $this->prophesize(DataDefinitionInterface::class);
        $mock = $this->createMock('Drupal\\Core\\Field\\FieldItemListInterface');
        $mock->expects($this->once())
            ->method('getDataDefinition')
            ->willReturn($data_definition->reveal());
        $data_definition->isInternal()
            ->willReturn($internal)
            ->shouldBeCalled();
        if (!$internal) {
            $mock->expects($this->once())
                ->method('access')
                ->with('view', $user_context)
                ->willReturn($access);
        }
        return $mock;
    }

}