class ListNormalizerTest

class ListNormalizerTest extends UnitTestCase {
  
  /**
   * The ListNormalizer instance.
   *
   * @var \Drupal\serialization\Normalizer\ListNormalizer
   */
  protected $normalizer;
  
  /**
   * The mock list instance.
   *
   * @var \Drupal\Core\TypedData\ListInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $list;
  
  /**
   * The expected list values to use for testing.
   *
   * @var array
   */
  protected $expectedListValues = [
    'test',
    'test',
    'test',
  ];
  
  /**
   * The mocked typed data.
   *
   * @var \Drupal\Core\TypedData\TypedDataInterface|\PHPUnit\Framework\MockObject\Stub
   */
  protected $typedData;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    // Mock the TypedDataManager to return a TypedDataInterface mock.
    $this->typedData = $this->createStub(TypedDataInterface::class);
    $typed_data_manager = $this->createStub(TypedDataManagerInterface::class);
    $typed_data_manager->method('getPropertyInstance')
      ->willReturn($this->typedData);
    // Set up a container as ItemList() will call for the 'typed_data_manager'
    // service.
    $container = new ContainerBuilder();
    $container->set('typed_data_manager', $typed_data_manager);
    \Drupal::setContainer($container);
    $this->normalizer = new ListNormalizer();
    $this->list = new ItemList(new DataDefinition());
    $this->list
      ->setValue($this->expectedListValues);
  }
  
  /**
   * Tests the supportsNormalization() method.
   */
  public function testSupportsNormalization() : void {
    $this->assertTrue($this->normalizer
      ->supportsNormalization($this->list));
    $this->assertFalse($this->normalizer
      ->supportsNormalization(new \stdClass()));
  }
  
  /**
   * Tests the normalize() method.
   */
  public function testNormalize() : void {
    $serializer = $this->prophesize(Serializer::class);
    $serializer->normalize($this->typedData, 'json', [
      'mu' => 'nu',
    ])
      ->shouldBeCalledTimes(3)
      ->willReturn('test');
    $this->normalizer
      ->setSerializer($serializer->reveal());
    $normalized = $this->normalizer
      ->normalize($this->list, 'json', [
      'mu' => 'nu',
    ]);
    $this->assertEquals($this->expectedListValues, $normalized);
  }

}