public function ToolkitGdTest::testResourceDestruction in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/KernelTests/Core/Image/ToolkitGdTest.php \Drupal\KernelTests\Core\Image\ToolkitGdTest::testResourceDestruction()

Tests that GD resources are freed from memory.

@todo Remove the method for PHP 8.0+ https://www.drupal.org/node/3179058

File

core/tests/Drupal/KernelTests/Core/Image/ToolkitGdTest.php, line 452

Class

ToolkitGdTest

Tests that core image manipulations work properly: scale, resize, rotate, crop, scale and crop, and desaturate.

Namespace

Drupal\KernelTests\Core\Image

Code

public function testResourceDestruction() {
  if (PHP_VERSION_ID >= 80000) {
    $this
      ->markTestSkipped('In PHP8 resources are no longer used. \\GdImage objects are used instead. These will be garbage collected like the regular objects they are.');
  }

  // Test that an Image object going out of scope releases its GD resource.
  $image = $this->imageFactory
    ->get('core/tests/fixtures/files/image-test.png');
  $res = $image
    ->getToolkit()
    ->getResource();
  $this
    ->assertIsResource($res);
  $image = NULL;

  // @todo In https://www.drupal.org/node/3133236 convert this to
  //   $this->assertIsNotResource($res).
  $this
    ->assertFalse(is_resource($res), 'Image resource was destroyed after losing scope.');

  // Test that 'create_new' operation does not leave orphaned GD resources.
  $image = $this->imageFactory
    ->get('core/tests/fixtures/files/image-test.png');
  $old_res = $image
    ->getToolkit()
    ->getResource();

  // Check if resource has been created successfully.
  $this
    ->assertIsResource($old_res);
  $image
    ->createNew(20, 20);
  $new_res = $image
    ->getToolkit()
    ->getResource();

  // Check if the original resource has been destroyed.
  // @todo In https://www.drupal.org/node/3133236 convert this to
  //   $this->assertIsNotResource($old_res).
  $this
    ->assertFalse(is_resource($old_res));

  // Check if a new resource has been created successfully.
  $this
    ->assertIsResource($new_res);
}