public function OpacityTest::testOpacityEffect in Image Effects 8.2

Same name and namespace in other branches

1. 8.3 tests/src/Functional/Effect/OpacityTest.php \Drupal\Tests\image_effects\Functional\Effect\OpacityTest::testOpacityEffect()
2. 8 tests/src/Functional/Effect/OpacityTest.php \Drupal\Tests\image_effects\Functional\Effect\OpacityTest::testOpacityEffect()

Opacity effect test.

@dataProvider providerToolkits

Parameters

string $toolkit_id: The id of the toolkit to set up.

string $toolkit_config: The config object of the toolkit to set up.

array $toolkit_settings: The settings of the toolkit to set up.

File

tests/src/Functional/Effect/OpacityTest.php, line 36

Class

OpacityTest

Opacity effect test.

Namespace

Drupal\Tests\image_effects\Functional\Effect

Code

public function testOpacityEffect($toolkit_id, $toolkit_config, array $toolkit_settings) {
  $this
    ->changeToolkit($toolkit_id, $toolkit_config, $toolkit_settings);

  // Test on the PNG test image.
  $original_uri = $this
    ->getTestImageCopyUri('core/tests/fixtures/files/image-test.png');

  // Test data.
  $test_data = [
    // No transparency change.
    '100' => [
      $this->red,
      $this->green,
      $this->transparent,
      $this->blue,
    ],
    // 50% transparency.
    '50' => [
      [
        255,
        0,
        0,
        63,
      ],
      [
        0,
        255,
        0,
        63,
      ],
      $this->transparent,
      [
        0,
        0,
        255,
        63,
      ],
    ],
    // 100% transparency.
    '0' => [
      $this->transparent,
      $this->transparent,
      $this->transparent,
      $this->transparent,
    ],
  ];
  foreach ($test_data as $opacity => $colors) {

    // Add Opacity effect to the test image style.
    $effect = [
      'id' => 'image_effects_opacity',
      'data' => [
        'opacity' => $opacity,
      ],
    ];
    $uuid = $this
      ->addEffectToTestStyle($effect);

    // Check that ::applyEffect generates image with expected opacity.
    $derivative_uri = $this->testImageStyle
      ->buildUri($original_uri);
    $this->testImageStyle
      ->createDerivative($original_uri, $derivative_uri);
    $image = $this->imageFactory
      ->get($derivative_uri, 'gd');
    $this
      ->assertColorsAreEqual($colors[0], $this
      ->getPixelColor($image, 0, 0));
    $this
      ->assertColorsAreEqual($colors[1], $this
      ->getPixelColor($image, 39, 0));
    $this
      ->assertColorsAreEqual($colors[2], $this
      ->getPixelColor($image, 0, 19));
    $this
      ->assertColorsAreEqual($colors[3], $this
      ->getPixelColor($image, 39, 19));

    // Remove effect.
    $uuid = $this
      ->removeEffectFromTestStyle($uuid);
  }
}