class DenormalizeTest

class DenormalizeTest extends NormalizerTestBase {
  
  /**
   * Tests that the type link relation in incoming data is handled correctly.
   */
  public function testTypeHandling() {
    // Valid type.
    $data_with_valid_type = [
      '_links' => [
        'type' => [
          'href' => Url::fromUri('base:rest/type/entity_test/entity_test', [
            'absolute' => TRUE,
          ])->toString(),
        ],
      ],
    ];
    $denormalized = $this->serializer
      ->denormalize($data_with_valid_type, $this->entityClass, $this->format);
    $this->assertEquals($this->entityClass, get_class($denormalized), 'Request with valid type results in creation of correct bundle.');
    // Multiple types.
    $data_with_multiple_types = [
      '_links' => [
        'type' => [
          [
            'href' => Url::fromUri('base:rest/types/foo', [
              'absolute' => TRUE,
            ])->toString(),
          ],
          [
            'href' => Url::fromUri('base:rest/type/entity_test/entity_test', [
              'absolute' => TRUE,
            ])->toString(),
          ],
        ],
      ],
    ];
    $denormalized = $this->serializer
      ->denormalize($data_with_multiple_types, $this->entityClass, $this->format);
    $this->assertEquals($this->entityClass, get_class($denormalized), 'Request with multiple types results in creation of correct bundle.');
    // Invalid type.
    $data_with_invalid_type = [
      '_links' => [
        'type' => [
          'href' => Url::fromUri('base:rest/types/foo', [
            'absolute' => TRUE,
          ])->toString(),
        ],
      ],
    ];
    try {
      $this->serializer
        ->denormalize($data_with_invalid_type, $this->entityClass, $this->format);
      $this->fail('Exception should be thrown when type is invalid.');
    } catch (UnexpectedValueException $e) {
      // Expected exception; just continue testing.
    }
    // No type.
    $data_with_no_type = [
      '_links' => [],
    ];
    try {
      $this->serializer
        ->denormalize($data_with_no_type, $this->entityClass, $this->format);
      $this->fail('Exception should be thrown when no type is provided.');
    } catch (UnexpectedValueException $e) {
      // Expected exception; just continue testing.
    }
  }
  
  /**
   * Tests link relation handling with an invalid type.
   */
  public function testTypeHandlingWithInvalidType() {
    $data_with_invalid_type = [
      '_links' => [
        'type' => [
          'href' => Url::fromUri('base:rest/type/entity_test/entity_test_invalid', [
            'absolute' => TRUE,
          ])->toString(),
        ],
      ],
    ];
    $this->expectException(UnexpectedValueException::class);
    $this->serializer
      ->denormalize($data_with_invalid_type, $this->entityClass, $this->format);
  }
  
  /**
   * Tests link relation handling with no types.
   */
  public function testTypeHandlingWithNoTypes() {
    $data_with_no_types = [
      '_links' => [
        'type' => [],
      ],
    ];
    $this->expectException(UnexpectedValueException::class);
    $this->serializer
      ->denormalize($data_with_no_types, $this->entityClass, $this->format);
  }
  
  /**
   * Tests that a field set to an empty array is different than an absent field.
   */
  public function testMarkFieldForDeletion() {
    // Add a default value for a field.
    $field = FieldConfig::loadByName('entity_test', 'entity_test', 'field_test_text');
    $field->setDefaultValue([
      [
        'value' => 'Llama',
      ],
    ]);
    $field->save();
    // Denormalize data that contains no entry for the field, and check that
    // the default value is present in the resulting entity.
    $data = [
      '_links' => [
        'type' => [
          'href' => Url::fromUri('base:rest/type/entity_test/entity_test', [
            'absolute' => TRUE,
          ])->toString(),
        ],
      ],
    ];
    $entity = $this->serializer
      ->denormalize($data, $this->entityClass, $this->format);
    $this->assertEquals(1, $entity->field_test_text
      ->count());
    $this->assertEquals('Llama', $entity->field_test_text->value);
    // Denormalize data that contains an empty entry for the field, and check
    // that the field is empty in the resulting entity.
    $data = [
      '_links' => [
        'type' => [
          'href' => Url::fromUri('base:rest/type/entity_test/entity_test', [
            'absolute' => TRUE,
          ])->toString(),
        ],
      ],
      'field_test_text' => [],
    ];
    $entity = $this->serializer
      ->denormalize($data, get_class($entity), $this->format, [
      'target_instance' => $entity,
    ]);
    $this->assertEquals(0, $entity->field_test_text
      ->count());
  }
  
  /**
   * Tests normalizing/denormalizing serialized columns.
   */
  public function testDenormalizeSerializedItem() {
    $entity = EntitySerializedField::create([
      'serialized' => 'boo',
    ]);
    $normalized = $this->serializer
      ->normalize($entity, $this->format);
    $this->expectException(\LogicException::class);
    $this->expectExceptionMessage('The generic FieldItemNormalizer cannot denormalize string values for "value" properties of the "serialized" field (field item class: Drupal\\entity_test\\Plugin\\Field\\FieldType\\SerializedItem).');
    $this->serializer
      ->denormalize($normalized, EntitySerializedField::class, $this->format);
  }
  
  /**
   * Tests normalizing/denormalizing invalid custom serialized fields.
   */
  public function testDenormalizeInvalidCustomSerializedField() {
    $entity = EntitySerializedField::create([
      'serialized_long' => serialize([
        'Hello world!',
      ]),
    ]);
    $normalized = $this->serializer
      ->normalize($entity);
    $this->assertEquals([
      'Hello world!',
    ], $normalized['serialized_long'][0]['value']);
    $normalized['serialized_long'][0]['value'] = 'boo';
    $this->expectException(\LogicException::class);
    $this->expectExceptionMessage('The generic FieldItemNormalizer cannot denormalize string values for "value" properties of the "serialized_long" field (field item class: Drupal\\Core\\Field\\Plugin\\Field\\FieldType\\StringLongItem).');
    $this->serializer
      ->denormalize($normalized, EntitySerializedField::class);
  }
  
  /**
   * Tests normalizing/denormalizing empty custom serialized fields.
   */
  public function testDenormalizeEmptyCustomSerializedField() {
    $entity = EntitySerializedField::create([
      'serialized_long' => serialize([]),
    ]);
    $normalized = $this->serializer
      ->normalize($entity);
    $this->assertEquals([], $normalized['serialized_long'][0]['value']);
    $entity = $this->serializer
      ->denormalize($normalized, EntitySerializedField::class);
    $this->assertEquals(serialize([]), $entity->get('serialized_long')->value);
  }
  
  /**
   * Tests normalizing/denormalizing valid custom serialized fields.
   */
  public function testDenormalizeValidCustomSerializedField() {
    $entity = EntitySerializedField::create([
      'serialized_long' => serialize([
        'key' => 'value',
      ]),
    ]);
    $normalized = $this->serializer
      ->normalize($entity);
    $this->assertEquals([
      'key' => 'value',
    ], $normalized['serialized_long'][0]['value']);
    $entity = $this->serializer
      ->denormalize($normalized, EntitySerializedField::class);
    $this->assertEquals(serialize([
      'key' => 'value',
    ]), $entity->get('serialized_long')->value);
  }

}