class ImageLoadingAttributeTest
Same name and namespace in other branches
- 11.x core/modules/system/tests/src/Functional/Theme/ImageLoadingAttributeTest.php \Drupal\Tests\system\Functional\Theme\ImageLoadingAttributeTest
- 10 core/modules/system/tests/src/Functional/Theme/ImageLoadingAttributeTest.php \Drupal\Tests\system\Functional\Theme\ImageLoadingAttributeTest
Tests lazy loading for images.
@group Theme
Hierarchy
- class \Drupal\Tests\BrowserTestBase uses \Drupal\Core\Test\FunctionalTestSetupTrait, \Drupal\Tests\UiHelperTrait, \Drupal\Core\Test\TestSetupTrait, \Drupal\Tests\block\Traits\BlockCreationTrait, \Drupal\FunctionalTests\AssertLegacyTrait, \Drupal\Tests\RandomGeneratorTrait, \Drupal\Tests\node\Traits\NodeCreationTrait, \Drupal\Tests\node\Traits\ContentTypeCreationTrait, \Drupal\Tests\ConfigTestTrait, \Drupal\Tests\TestRequirementsTrait, \Drupal\Tests\user\Traits\UserCreationTrait, \Drupal\Tests\XdebugRequestTrait, \Drupal\Tests\Traits\PhpUnitWarnings, \Drupal\Tests\PhpUnitCompatibilityTrait, \Symfony\Bridge\PhpUnit\ExpectDeprecationTrait, \Drupal\Tests\ExtensionListTestTrait implements \PHPUnit\Framework\TestCase
- class \Drupal\Tests\system\Functional\Theme\ImageLoadingAttributeTest implements \Drupal\Tests\BrowserTestBase
Expanded class hierarchy of ImageLoadingAttributeTest
File
-
core/
modules/ system/ tests/ src/ Functional/ Theme/ ImageLoadingAttributeTest.php, line 12
Namespace
Drupal\Tests\system\Functional\ThemeView source
class ImageLoadingAttributeTest extends BrowserTestBase {
/**
* Modules to enable.
*
* @var array
*/
protected static $modules = [
'image_lazy_load_test',
];
/**
* {@inheritdoc}
*/
protected $defaultTheme = 'stark';
/**
* Tests that loading attribute is enabled for images.
*/
public function testImageLoadingAttribute() {
$assert = $this->assertSession();
// Get page under test.
$this->drupalGet('image-lazy-load-test');
// Loading attribute is added when image dimensions has been set.
$assert->elementAttributeExists('css', '#with-dimensions img', 'loading');
$assert->elementAttributeContains('css', '#with-dimensions img', 'loading', 'lazy');
// Loading attribute with lazy default value can be overridden.
$assert->elementAttributeContains('css', '#override-loading-attribute img', 'loading', 'eager');
// Without image dimensions loading attribute is not generated.
$element = $assert->elementExists('css', '#without-dimensions img');
$this->assertFalse($element->hasAttribute('loading'));
}
}Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.