class ImageStyleTest

class ImageStyleTest extends UnitTestCase {
  
  /**
   * The entity type used for testing.
   *
   * @var \Drupal\Core\Entity\EntityTypeInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $entityType;
  
  /**
   * The entity type manager used for testing.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $entityTypeManager;
  
  /**
   * The ID of the type of the entity under test.
   *
   * @var string
   */
  protected $entityTypeId;
  
  /**
   * Gets a mocked image style for testing.
   *
   * @param string $image_effect_id
   *   The image effect ID.
   * @param \Drupal\image\ImageEffectInterface|\PHPUnit\Framework\MockObject\MockObject $image_effect
   *   The image effect used for testing.
   * @param array $stubs
   *   An array of additional method names to mock.
   *
   * @return \Drupal\image\ImageStyleInterface
   *   The mocked image style.
   */
  protected function getImageStyleMock($image_effect_id, $image_effect, $stubs = []) {
    $effectManager = $this->getMockBuilder('\\Drupal\\image\\ImageEffectManager')
      ->disableOriginalConstructor()
      ->getMock();
    $effectManager->expects($this->any())
      ->method('createInstance')
      ->with($image_effect_id)
      ->willReturn($image_effect);
    $default_stubs = [
      'getImageEffectPluginManager',
      'fileDefaultScheme',
    ];
    $image_style = $this->getMockBuilder('\\Drupal\\image\\Entity\\ImageStyle')
      ->setConstructorArgs([
      [
        'effects' => [
          $image_effect_id => [
            'id' => $image_effect_id,
          ],
        ],
      ],
      $this->entityTypeId,
    ])
      ->onlyMethods(array_merge($default_stubs, $stubs))
      ->getMock();
    $image_style->expects($this->any())
      ->method('getImageEffectPluginManager')
      ->willReturn($effectManager);
    $image_style->expects($this->any())
      ->method('fileDefaultScheme')
      ->willReturnCallback([
      $this,
      'fileDefaultScheme',
    ]);
    return $image_style;
  }
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->entityTypeId = $this->randomMachineName();
    $provider = $this->randomMachineName();
    $this->entityType = $this->createMock('\\Drupal\\Core\\Entity\\EntityTypeInterface');
    $this->entityType
      ->expects($this->any())
      ->method('getProvider')
      ->willReturn($provider);
    $this->entityTypeManager = $this->createMock('\\Drupal\\Core\\Entity\\EntityTypeManagerInterface');
    $this->entityTypeManager
      ->expects($this->any())
      ->method('getDefinition')
      ->with($this->entityTypeId)
      ->willReturn($this->entityType);
  }
  
  /**
   * @covers ::getDerivativeExtension
   */
  public function testGetDerivativeExtension() : void {
    $image_effect_id = $this->randomMachineName();
    $logger = $this->getMockBuilder('\\Psr\\Log\\LoggerInterface')
      ->getMock();
    $image_effect = $this->getMockBuilder('\\Drupal\\image\\ImageEffectBase')
      ->setConstructorArgs([
      [],
      $image_effect_id,
      [],
      $logger,
    ])
      ->getMock();
    $image_effect->expects($this->any())
      ->method('getDerivativeExtension')
      ->willReturn('png');
    $image_style = $this->getImageStyleMock($image_effect_id, $image_effect);
    $extensions = [
      'jpeg',
      'gif',
      'png',
    ];
    foreach ($extensions as $extension) {
      $extensionReturned = $image_style->getDerivativeExtension($extension);
      $this->assertEquals('png', $extensionReturned);
    }
  }
  
  /**
   * @covers ::buildUri
   */
  public function testBuildUri() : void {
    // Image style that changes the extension.
    $image_effect_id = $this->randomMachineName();
    $logger = $this->getMockBuilder('\\Psr\\Log\\LoggerInterface')
      ->getMock();
    $image_effect = $this->getMockBuilder('\\Drupal\\image\\ImageEffectBase')
      ->setConstructorArgs([
      [],
      $image_effect_id,
      [],
      $logger,
    ])
      ->getMock();
    $image_effect->expects($this->any())
      ->method('getDerivativeExtension')
      ->willReturn('png');
    $image_style = $this->getImageStyleMock($image_effect_id, $image_effect);
    $this->assertEquals($image_style->buildUri('public://test.jpeg'), 'public://styles/' . $image_style->id() . '/public/test.jpeg.png');
    // Image style that doesn't change the extension.
    $image_effect_id = $this->randomMachineName();
    $image_effect = $this->getMockBuilder('\\Drupal\\image\\ImageEffectBase')
      ->setConstructorArgs([
      [],
      $image_effect_id,
      [],
      $logger,
    ])
      ->getMock();
    $image_effect->expects($this->any())
      ->method('getDerivativeExtension')
      ->willReturnArgument(0);
    $image_style = $this->getImageStyleMock($image_effect_id, $image_effect);
    $this->assertEquals($image_style->buildUri('public://test.jpeg'), 'public://styles/' . $image_style->id() . '/public/test.jpeg');
  }
  
  /**
   * @covers ::getPathToken
   */
  public function testGetPathToken() : void {
    $logger = $this->getMockBuilder('\\Psr\\Log\\LoggerInterface')
      ->getMock();
    $private_key = $this->randomMachineName();
    $hash_salt = $this->randomMachineName();
    // Image style that changes the extension.
    $image_effect_id = $this->randomMachineName();
    $image_effect = $this->getMockBuilder('\\Drupal\\image\\ImageEffectBase')
      ->setConstructorArgs([
      [],
      $image_effect_id,
      [],
      $logger,
    ])
      ->getMock();
    $image_effect->expects($this->any())
      ->method('getDerivativeExtension')
      ->willReturn('png');
    $image_style = $this->getImageStyleMock($image_effect_id, $image_effect, [
      'getPrivateKey',
      'getHashSalt',
    ]);
    $image_style->expects($this->any())
      ->method('getPrivateKey')
      ->willReturn($private_key);
    $image_style->expects($this->any())
      ->method('getHashSalt')
      ->willReturn($hash_salt);
    // Assert the extension has been added to the URI before creating the token.
    $this->assertEquals($image_style->getPathToken('public://test.jpeg.png'), $image_style->getPathToken('public://test.jpeg'));
    $this->assertEquals(substr(Crypt::hmacBase64($image_style->id() . ':' . 'public://test.jpeg.png', $private_key . $hash_salt), 0, 8), $image_style->getPathToken('public://test.jpeg'));
    $this->assertNotEquals(substr(Crypt::hmacBase64($image_style->id() . ':' . 'public://test.jpeg', $private_key . $hash_salt), 0, 8), $image_style->getPathToken('public://test.jpeg'));
    // Image style that doesn't change the extension.
    $image_effect_id = $this->randomMachineName();
    $image_effect = $this->getMockBuilder('\\Drupal\\image\\ImageEffectBase')
      ->setConstructorArgs([
      [],
      $image_effect_id,
      [],
      $logger,
    ])
      ->getMock();
    $image_effect->expects($this->any())
      ->method('getDerivativeExtension')
      ->willReturnArgument(0);
    $image_style = $this->getImageStyleMock($image_effect_id, $image_effect, [
      'getPrivateKey',
      'getHashSalt',
    ]);
    $image_style->expects($this->any())
      ->method('getPrivateKey')
      ->willReturn($private_key);
    $image_style->expects($this->any())
      ->method('getHashSalt')
      ->willReturn($hash_salt);
    // Assert no extension has been added to the uri before creating the token.
    $this->assertNotEquals($image_style->getPathToken('public://test.jpeg.png'), $image_style->getPathToken('public://test.jpeg'));
    $this->assertNotEquals(substr(Crypt::hmacBase64($image_style->id() . ':' . 'public://test.jpeg.png', $private_key . $hash_salt), 0, 8), $image_style->getPathToken('public://test.jpeg'));
    $this->assertEquals(substr(Crypt::hmacBase64($image_style->id() . ':' . 'public://test.jpeg', $private_key . $hash_salt), 0, 8), $image_style->getPathToken('public://test.jpeg'));
  }
  
  /**
   * @covers ::flush
   */
  public function testFlush() : void {
    $cache_tag_invalidator = $this->createMock('\\Drupal\\Core\\Cache\\CacheTagsInvalidator');
    $file_system = $this->createMock('\\Drupal\\Core\\File\\FileSystemInterface');
    $module_handler = $this->createMock('\\Drupal\\Core\\Extension\\ModuleHandlerInterface');
    $stream_wrapper_manager = $this->createMock('\\Drupal\\Core\\StreamWrapper\\StreamWrapperManagerInterface');
    $stream_wrapper_manager->expects($this->any())
      ->method('getWrappers')
      ->will($this->returnValue([]));
    $theme_registry = $this->createMock('\\Drupal\\Core\\Theme\\Registry');
    $container = new ContainerBuilder();
    $container->set('cache_tags.invalidator', $cache_tag_invalidator);
    $container->set('file_system', $file_system);
    $container->set('module_handler', $module_handler);
    $container->set('stream_wrapper_manager', $stream_wrapper_manager);
    $container->set('theme.registry', $theme_registry);
    \Drupal::setContainer($container);
    $image_effect_id = $this->randomMachineName();
    $image_effect = $this->getMockBuilder('\\Drupal\\image\\ImageEffectBase');
    $image_style = $this->getImageStyleMock($image_effect_id, $image_effect, [
      'buildUri',
      'getCacheTagsToInvalidate',
    ]);
    $image_style->expects($this->any())
      ->method('buildUri')
      ->willReturn('test.jpg');
    $image_style->expects($this->any())
      ->method('getCacheTagsToInvalidate')
      ->willReturn([]);
    // Assert the theme registry is reset.
    $theme_registry->expects($this->once())
      ->method('reset');
    // Assert the cache tags are invalidated.
    $cache_tag_invalidator->expects($this->once())
      ->method('invalidateTags');
    $image_style->flush();
    // Assert the theme registry is not reset a path is flushed.
    $theme_registry->expects($this->never())
      ->method('reset');
    // Assert the cache tags are not reset a path is flushed.
    $cache_tag_invalidator->expects($this->never())
      ->method('invalidateTags');
    $image_style->flush('test.jpg');
  }
  
  /**
   * Mock function for ImageStyle::fileDefaultScheme().
   */
  public function fileDefaultScheme() {
    return 'public';
  }

}