class EntityValidationTest

class EntityValidationTest extends EntityUnitTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = array(
    'filter',
    'text',
  );
  public static function getInfo() {
    return array(
      'name' => 'Entity Validation API',
      'description' => 'Tests the Entity Validation API',
      'group' => 'Entity API',
    );
  }

  /**
   * {@inheritdoc}
   */
  public function setUp() {
    parent::setUp();
    $this
      ->installSchema('user', array(
      'users_roles',
      'users_data',
    ));
    $this
      ->installSchema('entity_test', array(
      'entity_test_mul',
      'entity_test_mul_property_data',
      'entity_test_rev',
      'entity_test_rev_revision',
      'entity_test_mulrev',
      'entity_test_mulrev_property_data',
      'entity_test_mulrev_property_revision',
    ));

    // Create the test field.
    entity_test_install();

    // Install required default configuration for filter module.
    $this
      ->installConfig(array(
      'system',
      'filter',
    ));
  }

  /**
   * Creates a test entity.
   *
   * @param string $entity_type
   *   An entity type.
   *
   * @return \Drupal\Core\Entity\EntityInterface
   *   The created test entity.
   */
  protected function createTestEntity($entity_type) {
    $this->entity_name = $this
      ->randomName();
    $this->entity_user = $this
      ->createUser();
    $this->entity_field_text = $this
      ->randomName();

    // Pass in the value of the name field when creating. With the user
    // field we test setting a field after creation.
    $entity = entity_create($entity_type, array());
    $entity->user_id->target_id = $this->entity_user->uid;
    $entity->name->value = $this->entity_name;

    // Set a value for the test field.
    $entity->field_test_text->value = $this->entity_field_text;
    return $entity;
  }

  /**
   * Tests validating test entity types.
   */
  public function testValidation() {

    // All entity variations have to have the same results.
    foreach (entity_test_entity_types() as $entity_type) {
      $this
        ->checkValidation($entity_type);
    }
  }

  /**
   * Executes the validation test set for a defined entity type.
   *
   * @param string $entity_type
   *   The entity type to run the tests with.
   */
  protected function checkValidation($entity_type) {
    $entity = $this
      ->createTestEntity($entity_type);
    $violations = $entity
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 0, 'Validation passes.');

    // Test triggering a fail for each of the constraints specified.
    $test_entity = clone $entity;
    $test_entity->uuid->value = $this
      ->randomString(129);
    $violations = $test_entity
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1, 'Validation failed.');
    $this
      ->assertEqual($violations[0]
      ->getMessage(), t('This value is too long. It should have %limit characters or less.', array(
      '%limit' => '128',
    )));
    $test_entity = clone $entity;
    $test_entity->langcode->value = $this
      ->randomString(13);
    $violations = $test_entity
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1, 'Validation failed.');
    $this
      ->assertEqual($violations[0]
      ->getMessage(), t('This value is too long. It should have %limit characters or less.', array(
      '%limit' => '12',
    )));
    $test_entity = clone $entity;
    $test_entity->type->value = NULL;
    $violations = $test_entity
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1, 'Validation failed.');
    $this
      ->assertEqual($violations[0]
      ->getMessage(), t('This value should not be null.'));
    $test_entity = clone $entity;
    $test_entity->name->value = $this
      ->randomString(33);
    $violations = $test_entity
      ->validate();
    $this
      ->assertEqual($violations
      ->count(), 1, 'Validation failed.');
    $this
      ->assertEqual($violations[0]
      ->getMessage(), t('This value is too long. It should have %limit characters or less.', array(
      '%limit' => '32',
    )));

    // Make sure the information provided by a violation is correct.
    $violation = $violations[0];
    $this
      ->assertEqual($violation
      ->getRoot(), $test_entity, 'Violation root is entity.');
    $this
      ->assertEqual($violation
      ->getPropertyPath(), 'name.0.value', 'Violation property path is correct.');
    $this
      ->assertEqual($violation
      ->getInvalidValue(), $test_entity->name->value, 'Violation contains invalid value.');
  }

}