public function ToolkitGdTest::testResourceDestruction in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/KernelTests/Core/Image/ToolkitGdTest.php \Drupal\KernelTests\Core\Image\ToolkitGdTest::testResourceDestruction()

Tests that GD resources are freed from memory.

File

core/tests/Drupal/KernelTests/Core/Image/ToolkitGdTest.php, line 432

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() {

  // 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);
}