public function BrightnessTest::testBrightnessEffect in Image Effects 8

Same name and namespace in other branches

1. 8.3 tests/src/Functional/Effect/BrightnessTest.php \Drupal\Tests\image_effects\Functional\Effect\BrightnessTest::testBrightnessEffect()
2. 8.2 tests/src/Functional/Effect/BrightnessTest.php \Drupal\Tests\image_effects\Functional\Effect\BrightnessTest::testBrightnessEffect()

Brightness 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/BrightnessTest.php, line 36

Class

BrightnessTest

Brightness effect test.

Namespace

Drupal\Tests\image_effects\Functional\Effect

Code

public function testBrightnessEffect($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('/files/image-test.png', 'simpletest');

  // Test data.
  $test_data = [
    // No brightness change.
    '0' => [
      $this->red,
      $this->green,
      $this->transparent,
      $this->blue,
    ],
    // Adjust brightness by -100%.
    '-100' => [
      $this->black,
      $this->black,
      $this->transparent,
      $this->black,
    ],
    // Adjust brightness by 100%.
    '100' => [
      $this->white,
      $this->white,
      $this->transparent,
      $this->white,
    ],
  ];
  foreach ($test_data as $key => $colors) {

    // Add Brightness effect to the test image style.
    $effect = [
      'id' => 'image_effects_brightness',
      'data' => [
        'level' => $key,
      ],
    ];
    $uuid = $this
      ->addEffectToTestStyle($effect);

    // Check that ::applyEffect generates image with expected brightness.
    $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);
  }
}