public function InvertTest::testInvertEffect in Image Effects 8

Same name and namespace in other branches

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

Invert 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/InvertTest.php, line 26

Class

InvertTest

Invert effect test.

Namespace

Drupal\Tests\image_effects\Functional\Effect

Code

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

  // Add Invert effect to the test image style.
  $effect = [
    'id' => 'image_effects_invert',
  ];
  $this
    ->addEffectToTestStyle($effect);

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

  // Expected colors after negate.
  $colors = [
    // Red is converted to cyan.
    $this->cyan,
    // Green is converted to fuchsia.
    $this->fuchsia,
    // Transparent remains transparent.
    $this->transparent,
    // Blue is converted to yellow.
    $this->yellow,
  ];

  // Check that ::applyEffect generates image with inverted colors.
  $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));
}