class LinkNotExistingInternalConstraintValidatorTest

class LinkNotExistingInternalConstraintValidatorTest extends UnitTestCase {
  
  /**
   * @covers ::validate
   * @dataProvider providerValidate
   */
  public function testValidate($value, $valid) {
    $context = $this->createMock(ExecutionContextInterface::class);
    if ($valid) {
      $context->expects($this->never())
        ->method('addViolation');
    }
    else {
      $context->expects($this->once())
        ->method('addViolation');
    }
    $constraint = new LinkNotExistingInternalConstraint();
    $validator = new LinkNotExistingInternalConstraintValidator();
    $validator->initialize($context);
    $validator->validate($value, $constraint);
  }
  
  /**
   * Data provider for ::testValidate.
   */
  public function providerValidate() {
    $data = [];
    // External URL
    $data[] = [
      Url::fromUri('https://www.drupal.org'),
      TRUE,
    ];
    // Existing routed URL.
    $url = Url::fromRoute('example.existing_route');
    $url_generator = $this->createMock('Drupal\\Core\\Routing\\UrlGeneratorInterface');
    $url_generator->expects($this->any())
      ->method('generateFromRoute')
      ->with('example.existing_route', [], [])
      ->willReturn('/example/existing');
    $url->setUrlGenerator($url_generator);
    $data[] = [
      $url,
      TRUE,
    ];
    // Non-existent routed URL.
    $url = Url::fromRoute('example.not_existing_route');
    $url_generator = $this->createMock('Drupal\\Core\\Routing\\UrlGeneratorInterface');
    $url_generator->expects($this->any())
      ->method('generateFromRoute')
      ->with('example.not_existing_route', [], [])
      ->willThrowException(new RouteNotFoundException());
    $url->setUrlGenerator($url_generator);
    $data[] = [
      $url,
      FALSE,
    ];
    foreach ($data as &$single_data) {
      $link = $this->createMock('Drupal\\link\\LinkItemInterface');
      $link->expects($this->any())
        ->method('getUrl')
        ->willReturn($single_data[0]);
      $single_data[0] = $link;
    }
    return $data;
  }
  
  /**
   * @covers ::validate
   *
   * @see \Drupal\Core\Url::fromUri
   */
  public function testValidateWithMalformedUri() {
    $link = $this->createMock('Drupal\\link\\LinkItemInterface');
    $link->expects($this->any())
      ->method('getUrl')
      ->willThrowException(new \InvalidArgumentException());
    $context = $this->createMock(ExecutionContextInterface::class);
    $context->expects($this->never())
      ->method('addViolation');
    $constraint = new LinkNotExistingInternalConstraint();
    $validator = new LinkNotExistingInternalConstraintValidator();
    $validator->initialize($context);
    $validator->validate($link, $constraint);
  }

}