class TypedDataTest

class TypedDataTest extends DrupalUnitTestBase {

  /**
   * The typed data manager to use.
   *
   * @var \Drupal\Core\TypedData\TypedDataManager
   */
  protected $typedData;

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = array(
    'system',
    'file',
  );
  public static function getInfo() {
    return array(
      'name' => 'Test typed data objects',
      'description' => 'Tests the functionality of all core data types.',
      'group' => 'Typed Data API',
    );
  }
  public function setUp() {
    parent::setup();
    $this
      ->installSchema('file', array(
      'file_managed',
      "file_usage",
    ));
    $this->typedData = $this->container
      ->get('typed_data');
  }

  /**
   * Creates a typed data object and executes some basic assertions.
   *
   * @see Drupal\Core\TypedData\TypedDataManager::create().
   */
  protected function createTypedData($definition, $value = NULL, $name = NULL) {

    // Save the type that was passed in so we can compare with it later.
    $type = $definition['type'];

    // Construct the object.
    $data = $this->typedData
      ->create($definition, $value, $name);

    // Assert the definition of the wrapper.
    $this
      ->assertTrue($data instanceof \Drupal\Core\TypedData\TypedDataInterface, 'Typed data object is an instance of the typed data interface.');
    $definition = $data
      ->getDefinition();
    $this
      ->assertTrue(!empty($definition['type']), format_string('!type data definition was returned.', array(
      '!type' => $definition['type'],
    )));

    // Assert that the correct type was constructed.
    $this
      ->assertEqual($data
      ->getType(), $type, format_string('!type object returned type.', array(
      '!type' => $definition['type'],
    )));
    return $data;
  }

  /**
   * Tests the basics around constructing and working with typed data objects.
   */
  public function testGetAndSet() {

    // Boolean type.
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'boolean',
    ), TRUE);
    $this
      ->assertTrue($typed_data
      ->getValue() === TRUE, 'Boolean value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(FALSE);
    $this
      ->assertTrue($typed_data
      ->getValue() === FALSE, 'Boolean value was changed.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Boolean value was converted to string');
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'Boolean wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalid');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // String type.
    $value = $this
      ->randomString();
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'string',
    ), $value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $value, 'String value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $new_value = $this
      ->randomString();
    $typed_data
      ->setValue($new_value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $new_value, 'String value was changed.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);

    // Funky test.
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'String value was converted to string');
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'String wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(array(
      'no string',
    ));
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // Integer type.
    $value = rand();
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'integer',
    ), $value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $value, 'Integer value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $new_value = rand();
    $typed_data
      ->setValue($new_value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $new_value, 'Integer value was changed.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Integer value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'Integer wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalid');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // Float type.
    $value = 123.45;
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'float',
    ), $value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $value, 'Float value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $new_value = 678.9;
    $typed_data
      ->setValue($new_value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $new_value, 'Float value was changed.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Float value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'Float wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalid');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // Date type.
    $value = new DrupalDateTime();
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'date',
    ), $value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $value, 'Date value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $new_value = REQUEST_TIME + 1;
    $typed_data
      ->setValue($new_value);
    $this
      ->assertTrue($typed_data
      ->getValue()
      ->getTimestamp() === $new_value, 'Date value was changed and set by timestamp.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('2000-01-01');
    $this
      ->assertTrue($typed_data
      ->getValue()
      ->format('Y-m-d') == '2000-01-01', 'Date value was changed and set by date string.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Date value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'Date wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalid');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // Duration type.
    $value = new DateInterval('PT20S');
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'duration',
    ), $value);
    $this
      ->assertTrue($typed_data
      ->getValue() === $value, 'Duration value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(10);
    $this
      ->assertTrue($typed_data
      ->getValue()->s == 10, 'Duration value was changed and set by time span in seconds.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('P40D');
    $this
      ->assertTrue($typed_data
      ->getValue()->d == 40, 'Duration value was changed and set by duration string.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Duration value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);

    // Test getting the string and passing it back as value.
    $duration = $typed_data
      ->getString();
    $typed_data
      ->setValue($duration);
    $this
      ->assertEqual($typed_data
      ->getString(), $duration, 'Duration formatted as string can be used to set the duration value.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'Duration wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalid');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // URI type.
    $uri = 'http://example.com/foo/';
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'uri',
    ), $uri);
    $this
      ->assertTrue($typed_data
      ->getValue() === $uri, 'URI value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue($uri . 'bar.txt');
    $this
      ->assertTrue($typed_data
      ->getValue() === $uri . 'bar.txt', 'URI value was changed.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'URI value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'URI wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalid');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // Generate some files that will be used to test the binary data type.
    $files = array();
    for ($i = 0; $i < 3; $i++) {
      $path = "public://example_{$i}.png";
      file_unmanaged_copy(DRUPAL_ROOT . '/core/misc/druplicon.png', $path);
      $image = entity_create('file', array(
        'uri' => $path,
      ));
      $image
        ->save();
      $files[] = $image;
    }

    // Email type.
    $value = $this
      ->randomString();
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'email',
    ), $value);
    $this
      ->assertIdentical($typed_data
      ->getValue(), $value, 'E-mail value was fetched.');
    $new_value = 'test@example.com';
    $typed_data
      ->setValue($new_value);
    $this
      ->assertIdentical($typed_data
      ->getValue(), $new_value, 'E-mail value was changed.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'E-mail value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'E-mail wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalidATexample.com');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // Binary type.
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'binary',
    ), $files[0]->uri);
    $this
      ->assertTrue(is_resource($typed_data
      ->getValue()), 'Binary value was fetched.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);

    // Try setting by URI.
    $typed_data
      ->setValue($files[1]->uri);
    $this
      ->assertEqual(is_resource($typed_data
      ->getValue()), fopen($files[1]->uri, 'r'), 'Binary value was changed.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Binary value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);

    // Try setting by resource.
    $typed_data
      ->setValue(fopen($files[2]->uri, 'r'));
    $this
      ->assertEqual(is_resource($typed_data
      ->getValue()), fopen($files[2]->uri, 'r'), 'Binary value was changed.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Binary value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'Binary wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue('invalid');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 1, 'Validation detected invalid value.');

    // Any type.
    $value = array(
      'foo',
    );
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'any',
    ), $value);
    $this
      ->assertIdentical($typed_data
      ->getValue(), $value, 'Any value was fetched.');
    $new_value = 'test@example.com';
    $typed_data
      ->setValue($new_value);
    $this
      ->assertIdentical($typed_data
      ->getValue(), $new_value, 'Any value was changed.');
    $this
      ->assertTrue(is_string($typed_data
      ->getString()), 'Any value was converted to string');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue(), 'Any wrapper is null-able.');
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);

    // We cannot test invalid values as everything is valid for the any type,
    // but make sure an array or object value passes validation also.
    $typed_data
      ->setValue(array(
      'entry',
    ));
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
    $typed_data
      ->setValue((object) array(
      'entry',
    ));
    $this
      ->assertEqual($typed_data
      ->validate()
      ->count(), 0);
  }

  /**
   * Tests using typed data lists.
   */
  public function testTypedDataLists() {

    // Test working with an existing list of strings.
    $value = array(
      'one',
      'two',
      'three',
    );
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'string',
      'list' => TRUE,
    ), $value);
    $this
      ->assertEqual($typed_data
      ->getValue(), $value, 'List value has been set.');

    // Test iterating.
    $count = 0;
    foreach ($typed_data as $item) {
      $this
        ->assertTrue($item instanceof \Drupal\Core\TypedData\TypedDataInterface);
      $count++;
    }
    $this
      ->assertEqual($count, 3);

    // Test getting the string representation.
    $this
      ->assertEqual($typed_data
      ->getString(), 'one, two, three');
    $typed_data[1] = '';
    $this
      ->assertEqual($typed_data
      ->getString(), 'one, three');

    // Test using array access.
    $this
      ->assertEqual($typed_data[0]
      ->getValue(), 'one');
    $typed_data[4] = 'four';
    $this
      ->assertEqual($typed_data[4]
      ->getValue(), 'four');
    $typed_data[] = 'five';
    $this
      ->assertEqual($typed_data[5]
      ->getValue(), 'five');
    $this
      ->assertEqual($typed_data
      ->count(), 5);
    $this
      ->assertTrue(isset($typed_data[0]));
    $this
      ->assertTrue(!isset($typed_data[6]));

    // Test isEmpty and cloning.
    $this
      ->assertFalse($typed_data
      ->isEmpty());
    $clone = clone $typed_data;
    $this
      ->assertTrue($typed_data
      ->getValue() === $clone
      ->getValue());
    $this
      ->assertTrue($typed_data[0] !== $clone[0]);
    $clone
      ->setValue(array());
    $this
      ->assertTrue($clone
      ->isEmpty());

    // Make sure the difference between NULL (not set) and an empty array is
    // kept.
    $clone
      ->setValue(array());
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue());
    $this
      ->assertIdentical($clone
      ->getValue(), array());

    // Test dealing with NULL items.
    $typed_data[] = NULL;
    $this
      ->assertTrue($typed_data
      ->isEmpty());
    $this
      ->assertEqual(count($typed_data), 1);
    $typed_data[] = '';
    $this
      ->assertFalse($typed_data
      ->isEmpty());
    $this
      ->assertEqual(count($typed_data), 2);
    $typed_data[] = 'three';
    $this
      ->assertFalse($typed_data
      ->isEmpty());
    $this
      ->assertEqual(count($typed_data), 3);
    $this
      ->assertEqual($typed_data
      ->getValue(), array(
      NULL,
      '',
      'three',
    ));

    // Test unsetting.
    unset($typed_data[2]);
    $this
      ->assertEqual(count($typed_data), 2);
    $this
      ->assertNull($typed_data[3]
      ->getValue());

    // Getting a not set list item sets it.
    $this
      ->assertNull($typed_data[4]
      ->getValue());
    $this
      ->assertEqual(count($typed_data), 4);

    // Test setting the list with less values.
    $typed_data
      ->setValue(array(
      'one',
    ));
    $this
      ->assertEqual($typed_data
      ->count(), 1);

    // Test setting invalid values.
    try {
      $typed_data
        ->setValue(array(
        'not a list' => 'one',
      ));
      $this
        ->fail('No exception has been thrown when setting an invalid value.');
    } catch (\Exception $e) {
      $this
        ->pass('Exception thrown:' . $e
        ->getMessage());
    }
    try {
      $typed_data
        ->setValue('string');
      $this
        ->fail('No exception has been thrown when setting an invalid value.');
    } catch (\Exception $e) {
      $this
        ->pass('Exception thrown:' . $e
        ->getMessage());
    }
  }

  /**
   * Tests using a typed data map.
   */
  public function testTypedDataMaps() {

    // Test working with a simple map.
    $value = array(
      'one' => 'eins',
      'two' => 'zwei',
      'three' => 'drei',
    );
    $typed_data = $this
      ->createTypedData(array(
      'type' => 'map',
    ), $value);

    // Test iterating.
    $count = 0;
    foreach ($typed_data as $item) {
      $this
        ->assertTrue($item instanceof \Drupal\Core\TypedData\TypedDataInterface);
      $count++;
    }
    $this
      ->assertEqual($count, 3);

    // Test retrieving metadata.
    $this
      ->assertEqual(array_keys($typed_data
      ->getPropertyDefinitions()), array_keys($value));
    $definition = $typed_data
      ->getPropertyDefinition('one');
    $this
      ->assertEqual($definition['type'], 'any');
    $this
      ->assertFalse($typed_data
      ->getPropertyDefinition('invalid'));

    // Test getting and setting properties.
    $this
      ->assertEqual($typed_data
      ->get('one')
      ->getValue(), 'eins');
    $this
      ->assertEqual($typed_data
      ->getPropertyValues(), $value);
    $typed_data
      ->set('one', 'uno');
    $this
      ->assertEqual($typed_data
      ->get('one')
      ->getValue(), 'uno');

    // Make sure the update is reflected in the value of the map also.
    $value = $typed_data
      ->getValue();
    $this
      ->assertEqual($value, array(
      'one' => 'uno',
      'two' => 'zwei',
      'three' => 'drei',
    ));
    $properties = $typed_data
      ->getProperties();
    $this
      ->assertEqual(array_keys($properties), array_keys($value));
    $this
      ->assertIdentical($properties['one'], $typed_data
      ->get('one'), 'Properties are identical.');
    $typed_data
      ->setPropertyValues(array(
      'one' => 'eins',
    ));
    $this
      ->assertEqual($typed_data
      ->get('one')
      ->getValue(), 'eins');
    $this
      ->assertEqual($typed_data
      ->get('two')
      ->getValue(), 'zwei');
    $this
      ->assertEqual($typed_data
      ->get('three')
      ->getValue(), 'drei');
    $typed_data
      ->setValue(array(
      'foo' => 'bar',
    ));
    $this
      ->assertEqual(array_keys($typed_data
      ->getProperties()), array(
      'foo',
    ));

    // Test getting the string representation.
    $typed_data
      ->setValue(array(
      'one' => 'eins',
      'two' => '',
      'three' => 'drei',
    ));
    $this
      ->assertEqual($typed_data
      ->getString(), 'eins, drei');

    // Test isEmpty and cloning.
    $this
      ->assertFalse($typed_data
      ->isEmpty());
    $clone = clone $typed_data;
    $this
      ->assertTrue($typed_data
      ->getValue() === $clone
      ->getValue());
    $this
      ->assertTrue($typed_data
      ->get('one') !== $clone
      ->get('one'));
    $clone
      ->setValue(array());
    $this
      ->assertTrue($clone
      ->isEmpty());

    // Make sure the difference between NULL (not set) and an empty array is
    // kept.
    $typed_data
      ->setValue(NULL);
    $this
      ->assertNull($typed_data
      ->getValue());
    $typed_data
      ->setValue(array());
    $value = $typed_data
      ->getValue();
    $this
      ->assertTrue(isset($value) && is_array($value));

    // Test accessing invalid properties.
    $typed_data
      ->setValue($value);
    try {
      $typed_data
        ->get('invalid');
      $this
        ->fail('No exception has been thrown when getting an invalid value.');
    } catch (\Exception $e) {
      $this
        ->pass('Exception thrown:' . $e
        ->getMessage());
    }

    // Test setting invalid values.
    try {
      $typed_data
        ->setValue('invalid');
      $this
        ->fail('No exception has been thrown when setting an invalid value.');
    } catch (\Exception $e) {
      $this
        ->pass('Exception thrown:' . $e
        ->getMessage());
    }

    // Test adding a new entry to the map.
    $typed_data
      ->set('zero', 'null');
    $this
      ->assertEqual($typed_data
      ->get('zero')
      ->getValue(), 'null');
    $definition = $typed_data
      ->getPropertyDefinition('zero');
    $this
      ->assertEqual($definition['type'], 'any', 'Definition for a new map entry returned.');
  }

  /**
   * Tests typed data validation.
   */
  public function testTypedDataValidation() {
    $definition = array(
      'type' => 'integer',
      'constraints' => array(
        'Range' => array(
          'min' => 5,
        ),
      ),
    );
    $violations = $this->typedData
      ->create($definition, 10)
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 0);
    $integer = $this->typedData
      ->create($definition, 1);
    $violations = $integer
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1);

    // Test translating violation messages.
    $message = t('This value should be %limit or more.', array(
      '%limit' => 5,
    ));
    $this
      ->assertEqual($violations[0]
      ->getMessage(), $message, 'Translated violation message retrieved.');
    $this
      ->assertEqual($violations[0]
      ->getPropertyPath(), '');
    $this
      ->assertIdentical($violations[0]
      ->getRoot(), $integer, 'Root object returned.');

    // Test translating violation messages when pluralization is used.
    $definition = array(
      'type' => 'string',
      'constraints' => array(
        'Length' => array(
          'min' => 10,
        ),
      ),
    );
    $violations = $this->typedData
      ->create($definition, "short")
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1);
    $message = t('This value is too short. It should have %limit characters or more.', array(
      '%limit' => 10,
    ));
    $this
      ->assertEqual($violations[0]
      ->getMessage(), $message, 'Translated violation message retrieved.');

    // Test having multiple violations.
    $definition = array(
      'type' => 'integer',
      'constraints' => array(
        'Range' => array(
          'min' => 5,
        ),
        'Null' => array(),
      ),
    );
    $violations = $this->typedData
      ->create($definition, 10)
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1);
    $violations = $this->typedData
      ->create($definition, 1)
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 2);

    // Test validating property containers and make sure the NotNull and Null
    // constraints work with typed data containers.
    $definition = array(
      'type' => 'integer_field',
      'constraints' => array(
        'NotNull' => array(),
      ),
    );
    $field_item = $this->typedData
      ->create($definition, array(
      'value' => 10,
    ));
    $violations = $field_item
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 0);
    $field_item = $this->typedData
      ->create($definition, array(
      'value' => 'no integer',
    ));
    $violations = $field_item
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1);
    $this
      ->assertEqual($violations[0]
      ->getPropertyPath(), 'value');

    // Test that the field item may not be empty.
    $field_item = $this->typedData
      ->create($definition);
    $violations = $field_item
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1);

    // Test the Null constraint with typed data containers.
    $definition = array(
      'type' => 'integer_field',
      'constraints' => array(
        'Null' => array(),
      ),
    );
    $field_item = $this->typedData
      ->create($definition, array(
      'value' => 10,
    ));
    $violations = $field_item
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1);
    $field_item = $this->typedData
      ->create($definition);
    $violations = $field_item
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 0);

    // Test getting constraint definitions by type.
    $definitions = $this->typedData
      ->getValidationConstraintManager()
      ->getDefinitionsByType('entity');
    $this
      ->assertTrue(isset($definitions['EntityType']), 'Constraint plugin found for type entity.');
    $this
      ->assertTrue(isset($definitions['Null']), 'Constraint plugin found for type entity.');
    $this
      ->assertTrue(isset($definitions['NotNull']), 'Constraint plugin found for type entity.');
    $definitions = $this->typedData
      ->getValidationConstraintManager()
      ->getDefinitionsByType('string');
    $this
      ->assertFalse(isset($definitions['EntityType']), 'Constraint plugin not found for type string.');
    $this
      ->assertTrue(isset($definitions['Null']), 'Constraint plugin found for type string.');
    $this
      ->assertTrue(isset($definitions['NotNull']), 'Constraint plugin found for type string.');

    // Test automatic 'required' validation.
    $definition = array(
      'type' => 'integer',
      'required' => TRUE,
    );
    $violations = $this->typedData
      ->create($definition)
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1);
    $violations = $this->typedData
      ->create($definition, 0)
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 0);
  }

}