class TimestampItemNormalizerTest

class TimestampItemNormalizerTest extends UnitTestCase {
  
  /**
   * @var \Drupal\serialization\Normalizer\TimestampItemNormalizer
   */
  protected $normalizer;
  
  /**
   * The test TimestampItem.
   *
   * @var \Drupal\Core\Field\Plugin\Field\FieldType\TimestampItem
   */
  protected $item;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->normalizer = new TimestampItemNormalizer();
  }
  
  /**
   * @covers ::supportsNormalization
   */
  public function testSupportsNormalization() : void {
    $timestamp_item = $this->createTimestampItemProphecy();
    $this->assertTrue($this->normalizer
      ->supportsNormalization($timestamp_item->reveal()));
    $entity_ref_item = $this->prophesize(EntityReferenceItem::class);
    $this->assertFalse($this->normalizer
      ->supportsNormalization($entity_ref_item->reveal()));
  }
  
  /**
   * @covers ::supportsDenormalization
   */
  public function testSupportsDenormalization() : void {
    $timestamp_item = $this->createTimestampItemProphecy();
    $this->assertTrue($this->normalizer
      ->supportsDenormalization($timestamp_item->reveal(), TimestampItem::class));
    // CreatedItem extends regular TimestampItem.
    $timestamp_item = $this->prophesize(CreatedItem::class);
    $this->assertTrue($this->normalizer
      ->supportsDenormalization($timestamp_item->reveal(), TimestampItem::class));
    $entity_ref_item = $this->prophesize(EntityReferenceItem::class);
    $this->assertFalse($this->normalizer
      ->supportsNormalization($entity_ref_item->reveal(), TimestampItem::class));
  }
  
  /**
   * @covers ::normalize
   * @see \Drupal\Tests\serialization\Unit\Normalizer\TimestampNormalizerTest
   */
  public function testNormalize() : void {
    // Mock TimestampItem @FieldType, which contains a Timestamp @DataType,
    // which has a DataDefinition.
    $data_definition = $this->prophesize(DataDefinitionInterface::class);
    $data_definition->isInternal()
      ->willReturn(FALSE)
      ->shouldBeCalled();
    $timestamp = $this->prophesize(Timestamp::class);
    $timestamp->getDataDefinition()
      ->willReturn($data_definition->reveal())
      ->shouldBeCalled();
    $timestamp = $timestamp->reveal();
    $timestamp_item = $this->createTimestampItemProphecy();
    $timestamp_item->getProperties(TRUE)
      ->willReturn([
      'value' => $timestamp,
    ])
      ->shouldBeCalled();
    // Mock Serializer service, to assert that the Timestamp @DataType
    // normalizer would be called.
    $timestamp_datetype_normalization = $this->randomMachineName();
    $serializer_prophecy = $this->prophesize(Serializer::class);
    // This is where \Drupal\serialization\Normalizer\TimestampNormalizer would
    // be called.
    $serializer_prophecy->normalize($timestamp, NULL, [])
      ->willReturn($timestamp_datetype_normalization)
      ->shouldBeCalled();
    $this->normalizer
      ->setSerializer($serializer_prophecy->reveal());
    $normalized = $this->normalizer
      ->normalize($timestamp_item->reveal());
    $this->assertSame([
      'value' => $timestamp_datetype_normalization,
      'format' => \DateTime::RFC3339,
    ], $normalized);
  }
  
  /**
   * @covers ::denormalize
   */
  public function testDenormalize() : void {
    $timestamp_item_normalization = [
      'value' => $this->randomMachineName(),
      'format' => \DateTime::RFC3339,
    ];
    $timestamp_data_denormalization = $this->randomMachineName();
    $timestamp_item = $this->createTimestampItemProphecy();
    // The field item should get the Timestamp @DataType denormalization set as
    // a value, in FieldItemNormalizer::denormalize().
    $timestamp_item->setValue([
      'value' => $timestamp_data_denormalization,
    ])
      ->shouldBeCalled();
    // Avoid a static method call by returning dummy serialized property data.
    $field_definition = $this->prophesize(FieldDefinitionInterface::class);
    $timestamp_item->getFieldDefinition()
      ->willReturn($field_definition->reveal())
      ->shouldBeCalled();
    $timestamp_item->getPluginDefinition()
      ->willReturn([
      'serialized_property_names' => [
        'foo' => 'bar',
      ],
    ])
      ->shouldBeCalled();
    $entity = $this->prophesize(EntityInterface::class);
    $entity_type = $this->prophesize(EntityTypeInterface::class);
    $entity->getEntityType()
      ->willReturn($entity_type->reveal())
      ->shouldBeCalled();
    $timestamp_item->getEntity()
      ->willReturn($entity->reveal())
      ->shouldBeCalled();
    $context = [
      'target_instance' => $timestamp_item->reveal(),
      'datetime_allowed_formats' => [
        \DateTime::RFC3339,
      ],
    ];
    // Mock Serializer service, to assert that the Timestamp @DataType
    // denormalizer would be called.
    $serializer_prophecy = $this->prophesize(Serializer::class);
    // This is where \Drupal\serialization\Normalizer\TimestampNormalizer would
    // be called.
    $serializer_prophecy->denormalize($timestamp_item_normalization['value'], Timestamp::class, NULL, $context)
      ->willReturn($timestamp_data_denormalization)
      ->shouldBeCalled();
    $this->normalizer
      ->setSerializer($serializer_prophecy->reveal());
    $denormalized = $this->normalizer
      ->denormalize($timestamp_item_normalization, TimestampItem::class, NULL, $context);
    $this->assertInstanceOf(TimestampItem::class, $denormalized);
  }
  
  /**
   * Creates a TimestampItem prophecy.
   *
   * @return \Prophecy\Prophecy\ObjectProphecy|\Drupal\Core\Field\Plugin\Field\FieldType\TimestampItem
   */
  protected function createTimestampItemProphecy() {
    $timestamp_item = $this->prophesize(TimestampItem::class);
    $timestamp_item->getParent()
      ->willReturn(TRUE);
    return $timestamp_item;
  }

}