function ImageEffectsTest::testImageEffectsCaching

Tests image effect caching.

File

core/modules/image/tests/src/Kernel/ImageEffectsTest.php, line 197

Class

ImageEffectsTest

Tests image effects.

Namespace

Code

public function testImageEffectsCaching() {
  $state = $this->container
    ->get('state');
  // The 'image_module_test.counter' state variable value is incremented in
  // image_module_test_image_effect_info_alter() every time the image effect
  // plugin definitions are recomputed.
  // @see image_module_test_image_effect_info_alter()
  $state->set('image_module_test.counter', 0);
  // First call should grab a fresh copy of the data.
  $effects = $this->imageEffectPluginManager
    ->getDefinitions();
  $this->assertEquals(1, $state->get('image_module_test.counter'));
  // Second call should come from cache.
  $state->set('image_module_test.counter', 0);
  $cached_effects = $this->imageEffectPluginManager
    ->getDefinitions();
  $this->assertEquals(0, $state->get('image_module_test.counter'));
  // Check that cached effects are the same as the processed.
  $this->assertSame($effects, $cached_effects);
}