class AttachedAssetsTest in Drupal 10

Same name and namespace in other branches

8 core/tests/Drupal/KernelTests/Core/Asset/AttachedAssetsTest.php \Drupal\KernelTests\Core\Asset\AttachedAssetsTest
9 core/tests/Drupal/KernelTests/Core/Asset/AttachedAssetsTest.php \Drupal\KernelTests\Core\Asset\AttachedAssetsTest

Tests #attached assets: attached asset libraries and JavaScript settings.

I.e. tests:


$build['#attached']['library'] = …
$build['#attached']['drupalSettings'] = …

@group Common @group Asset

Hierarchy

class \Drupal\KernelTests\KernelTestBase extends \PHPUnit\Framework\TestCase implements ServiceProviderInterface uses \Drupal\Tests\PhpUnitCompatibilityTrait, \Symfony\Bridge\PhpUnit\ExpectDeprecationTrait, AssertContentTrait, ConfigTestTrait, ExtensionListTestTrait, RandomGeneratorTrait, TestRequirementsTrait, PhpUnitWarnings
- class \Drupal\KernelTests\Core\Asset\AttachedAssetsTest

Expanded class hierarchy of AttachedAssetsTest

File

core/tests/Drupal/KernelTests/Core/Asset/AttachedAssetsTest.php, line 22

Namespace

Drupal\KernelTests\Core\Asset

View source

class AttachedAssetsTest extends KernelTestBase {

  /**
   * The asset resolver service.
   *
   * @var \Drupal\Core\Asset\AssetResolverInterface
   */
  protected $assetResolver;

  /**
   * The renderer service.
   *
   * @var \Drupal\Core\Render\RendererInterface
   */
  protected $renderer;

  /**
   * The file URL generator.
   *
   * @var \Drupal\Core\File\FileUrlGeneratorInterface
   */
  protected $fileUrlGenerator;

  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'language',
    'common_test',
    'system',
  ];

  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->assetResolver = $this->container
      ->get('asset.resolver');
    $this->renderer = $this->container
      ->get('renderer');
    $this->fileUrlGenerator = $this->container
      ->get('file_url_generator');
  }

  /**
   * Tests that default CSS and JavaScript is empty.
   */
  public function testDefault() {
    $assets = new AttachedAssets();
    $this
      ->assertEquals([], $this->assetResolver
      ->getCssAssets($assets, FALSE), 'Default CSS is empty.');
    [
      $js_assets_header,
      $js_assets_footer,
    ] = $this->assetResolver
      ->getJsAssets($assets, FALSE);
    $this
      ->assertEquals([], $js_assets_header, 'Default header JavaScript is empty.');
    $this
      ->assertEquals([], $js_assets_footer, 'Default footer JavaScript is empty.');
  }

  /**
   * Tests non-existing libraries.
   */
  public function testLibraryUnknown() {
    $build['#attached']['library'][] = 'core/unknown';
    $assets = AttachedAssets::createFromRenderArray($build);
    $this
      ->assertSame([], $this->assetResolver
      ->getJsAssets($assets, FALSE)[0], 'Unknown library was not added to the page.');
  }

  /**
   * Tests adding a CSS and a JavaScript file.
   */
  public function testAddFiles() {
    $build['#attached']['library'][] = 'common_test/files';
    $assets = AttachedAssets::createFromRenderArray($build);
    $css = $this->assetResolver
      ->getCssAssets($assets, FALSE);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $this
      ->assertArrayHasKey('core/modules/system/tests/modules/common_test/bar.css', $css);
    $this
      ->assertArrayHasKey('core/modules/system/tests/modules/common_test/foo.js', $js);
    $css_render_array = \Drupal::service('asset.css.collection_renderer')
      ->render($css);
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_css = $this->renderer
      ->renderPlain($css_render_array);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $query_string = $this->container
      ->get('state')
      ->get('system.css_js_query_string') ?: '0';
    $this
      ->assertStringContainsString('<link rel="stylesheet" media="all" href="' . $this->fileUrlGenerator
      ->generateString('core/modules/system/tests/modules/common_test/bar.css') . '?' . $query_string . '" />', $rendered_css, 'Rendering an external CSS file.');
    $this
      ->assertStringContainsString('<script src="' . $this->fileUrlGenerator
      ->generateString('core/modules/system/tests/modules/common_test/foo.js') . '?' . $query_string . '"></script>', $rendered_js, 'Rendering an external JavaScript file.');
  }

  /**
   * Tests adding JavaScript settings.
   */
  public function testAddJsSettings() {

    // Add a file in order to test default settings.
    $build['#attached']['library'][] = 'core/drupalSettings';
    $assets = AttachedAssets::createFromRenderArray($build);
    $this
      ->assertEquals([], $assets
      ->getSettings(), 'JavaScript settings on $assets are empty.');
    $javascript = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $this
      ->assertArrayHasKey('currentPath', $javascript['drupalSettings']['data']['path']);
    $this
      ->assertArrayHasKey('currentPath', $assets
      ->getSettings()['path']);
    $assets
      ->setSettings([
      'drupal' => 'rocks',
      'dries' => 280342800,
    ]);
    $javascript = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $this
      ->assertEquals(280342800, $javascript['drupalSettings']['data']['dries'], 'JavaScript setting is set correctly.');
    $this
      ->assertEquals('rocks', $javascript['drupalSettings']['data']['drupal'], 'The other JavaScript setting is set correctly.');
  }

  /**
   * Tests adding external CSS and JavaScript files.
   */
  public function testAddExternalFiles() {
    $build['#attached']['library'][] = 'common_test/external';
    $assets = AttachedAssets::createFromRenderArray($build);
    $css = $this->assetResolver
      ->getCssAssets($assets, FALSE);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $this
      ->assertArrayHasKey('http://example.com/stylesheet.css', $css);
    $this
      ->assertArrayHasKey('http://example.com/script.js', $js);
    $css_render_array = \Drupal::service('asset.css.collection_renderer')
      ->render($css);
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_css = $this->renderer
      ->renderPlain($css_render_array);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $this
      ->assertStringContainsString('<link rel="stylesheet" media="all" href="http://example.com/stylesheet.css" />', $rendered_css, 'Rendering an external CSS file.');
    $this
      ->assertStringContainsString('<script src="http://example.com/script.js"></script>', $rendered_js, 'Rendering an external JavaScript file.');
  }

  /**
   * Tests adding JavaScript files with additional attributes.
   */
  public function testAttributes() {
    $build['#attached']['library'][] = 'common_test/js-attributes';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $expected_1 = '<script src="http://example.com/deferred-external.js" foo="bar" defer></script>';
    $expected_2 = '<script src="' . $this->fileUrlGenerator
      ->generateString('core/modules/system/tests/modules/common_test/deferred-internal.js') . '?v=1" defer bar="foo"></script>';
    $this
      ->assertStringContainsString($expected_1, $rendered_js, 'Rendered external JavaScript with correct defer and random attributes.');
    $this
      ->assertStringContainsString($expected_2, $rendered_js, 'Rendered internal JavaScript with correct defer and random attributes.');
  }

  /**
   * Tests that attributes are maintained when JS aggregation is enabled.
   */
  public function testAggregatedAttributes() {
    $build['#attached']['library'][] = 'common_test/js-attributes';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, TRUE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $expected_1 = '<script src="http://example.com/deferred-external.js" foo="bar" defer></script>';
    $expected_2 = '<script src="' . $this->fileUrlGenerator
      ->generateString('core/modules/system/tests/modules/common_test/deferred-internal.js') . '?v=1" defer bar="foo"></script>';
    $this
      ->assertStringContainsString($expected_1, $rendered_js, 'Rendered external JavaScript with correct defer and random attributes.');
    $this
      ->assertStringContainsString($expected_2, $rendered_js, 'Rendered internal JavaScript with correct defer and random attributes.');
  }

  /**
   * Integration test for CSS/JS aggregation.
   */
  public function testAggregation() {
    $build['#attached']['library'][] = 'core/drupal.timezone';
    $build['#attached']['library'][] = 'core/drupal.vertical-tabs';
    $assets = AttachedAssets::createFromRenderArray($build);
    $this
      ->assertCount(1, $this->assetResolver
      ->getCssAssets($assets, TRUE), 'There is a sole aggregated CSS asset.');
    [
      $header_js,
      $footer_js,
    ] = $this->assetResolver
      ->getJsAssets($assets, TRUE);
    $this
      ->assertEquals([], \Drupal::service('asset.js.collection_renderer')
      ->render($header_js), 'There are 0 JavaScript assets in the header.');
    $rendered_footer_js = \Drupal::service('asset.js.collection_renderer')
      ->render($footer_js);
    $this
      ->assertCount(2, $rendered_footer_js, 'There are 2 JavaScript assets in the footer.');
    $this
      ->assertEquals('drupal-settings-json', $rendered_footer_js[0]['#attributes']['data-drupal-selector'], 'The first of the two JavaScript assets in the footer has drupal settings.');
    $this
      ->assertStringStartsWith(base_path(), $rendered_footer_js[1]['#attributes']['src'], 'The second of the two JavaScript assets in the footer has the sole aggregated JavaScript asset.');
  }

  /**
   * Tests JavaScript settings.
   */
  public function testSettings() {
    $build = [];
    $build['#attached']['library'][] = 'core/drupalSettings';

    // Nonsensical value to verify if it's possible to override path settings.
    $build['#attached']['drupalSettings']['path']['pathPrefix'] = 'yarhar';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);

    // Cast to string since this returns a \Drupal\Core\Render\Markup object.
    $rendered_js = (string) $this->renderer
      ->renderPlain($js_render_array);

    // Parse the generated drupalSettings <script> back to a PHP representation.
    $startToken = '{';
    $endToken = '}';
    $start = strpos($rendered_js, $startToken);
    $end = strrpos($rendered_js, $endToken);

    // Convert to a string, as $renderer_js is a \Drupal\Core\Render\Markup
    // object.
    $json = mb_substr($rendered_js, $start, $end - $start + 1);
    $parsed_settings = Json::decode($json);

    // Test whether the settings for core/drupalSettings are available.
    $this
      ->assertTrue(isset($parsed_settings['path']['baseUrl']), 'drupalSettings.path.baseUrl is present.');
    $this
      ->assertSame('yarhar', $parsed_settings['path']['pathPrefix'], 'drupalSettings.path.pathPrefix is present and has the correct (overridden) value.');
    $this
      ->assertSame('', $parsed_settings['path']['currentPath'], 'drupalSettings.path.currentPath is present and has the correct value.');
    $this
      ->assertFalse($parsed_settings['path']['currentPathIsAdmin'], 'drupalSettings.path.currentPathIsAdmin is present and has the correct value.');
    $this
      ->assertFalse($parsed_settings['path']['isFront'], 'drupalSettings.path.isFront is present and has the correct value.');
    $this
      ->assertSame('en', $parsed_settings['path']['currentLanguage'], 'drupalSettings.path.currentLanguage is present and has the correct value.');

    // Tests whether altering JavaScript settings via hook_js_settings_alter()
    // is working as expected.
    // @see common_test_js_settings_alter()
    $this
      ->assertSame('☃', $parsed_settings['pluralDelimiter']);
    $this
      ->assertSame('bar', $parsed_settings['foo']);
  }

  /**
   * Tests JS assets depending on the 'core/<head>' virtual library.
   */
  public function testHeaderHTML() {
    $build['#attached']['library'][] = 'common_test/js-header';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[0];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $query_string = $this->container
      ->get('state')
      ->get('system.css_js_query_string') ?: '0';
    $this
      ->assertStringContainsString('<script src="' . $this->fileUrlGenerator
      ->generateString('core/modules/system/tests/modules/common_test/header.js') . '?' . $query_string . '"></script>', $rendered_js, 'The JS asset in common_test/js-header appears in the header.');
    $this
      ->assertStringContainsString('<script src="' . $this->fileUrlGenerator
      ->generateString('core/misc/drupal.js'), $rendered_js, 'The JS asset of the direct dependency (core/drupal) of common_test/js-header appears in the header.');
    $this
      ->assertStringContainsString('<script src="' . $this->fileUrlGenerator
      ->generateString('core/misc/drupalSettingsLoader.js'), $rendered_js, 'The JS asset of the indirect dependency (core/drupalSettings) of common_test/js-header appears in the header.');
  }

  /**
   * Tests that for assets with cache = FALSE, Drupal sets preprocess = FALSE.
   */
  public function testNoCache() {
    $build['#attached']['library'][] = 'common_test/no-cache';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $this
      ->assertFalse($js['core/modules/system/tests/modules/common_test/nocache.js']['preprocess'], 'Setting cache to FALSE sets preprocess to FALSE when adding JavaScript.');
  }

  /**
   * Tests JavaScript versioning.
   */
  public function testVersionQueryString() {
    $build['#attached']['library'][] = 'core/once';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $this
      ->assertStringContainsString('core/assets/vendor/once/once.min.js?v=1.0.1', $rendered_js, 'JavaScript version identifiers correctly appended to URLs');
  }

  /**
   * Tests JavaScript and CSS asset ordering.
   */
  public function testRenderOrder() {
    $build['#attached']['library'][] = 'common_test/order';
    $assets = AttachedAssets::createFromRenderArray($build);

    // Construct the expected result from the regex.
    $expected_order_js = [
      "-8_1",
      "-8_2",
      "-8_3",
      "-8_4",
      // The external script.
      "-5_1",
      "-3_1",
      "-3_2",
      "0_1",
      "0_2",
      "0_3",
    ];

    // Retrieve the rendered JavaScript and test against the regex.
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $matches = [];
    if (preg_match_all('/weight_([-0-9]+_[0-9]+)/', $rendered_js, $matches)) {
      $result = $matches[1];
    }
    else {
      $result = [];
    }
    $this
      ->assertSame($expected_order_js, $result, 'JavaScript is added in the expected weight order.');

    // Construct the expected result from the regex.
    $expected_order_css = [
      // Base.
      'base_weight_-101_1',
      'base_weight_-8_1',
      'layout_weight_-101_1',
      'base_weight_0_1',
      'base_weight_0_2',
      // Layout.
      'layout_weight_-8_1',
      'component_weight_-101_1',
      'layout_weight_0_1',
      'layout_weight_0_2',
      // Component.
      'component_weight_-8_1',
      'state_weight_-101_1',
      'component_weight_0_1',
      'component_weight_0_2',
      // State.
      'state_weight_-8_1',
      'theme_weight_-101_1',
      'state_weight_0_1',
      'state_weight_0_2',
      // Theme.
      'theme_weight_-8_1',
      'theme_weight_0_1',
      'theme_weight_0_2',
    ];

    // Retrieve the rendered CSS and test against the regex.
    $css = $this->assetResolver
      ->getCssAssets($assets, FALSE);
    $css_render_array = \Drupal::service('asset.css.collection_renderer')
      ->render($css);
    $rendered_css = $this->renderer
      ->renderPlain($css_render_array);
    $matches = [];
    if (preg_match_all('/([a-z]+)_weight_([-0-9]+_[0-9]+)/', $rendered_css, $matches)) {
      $result = $matches[0];
    }
    else {
      $result = [];
    }
    $this
      ->assertSame($expected_order_css, $result, 'CSS is added in the expected weight order.');
  }

  /**
   * Tests rendering the JavaScript with a file's weight above jQuery's.
   */
  public function testRenderDifferentWeight() {

    // If a library contains assets A and B, and A is listed first, then B can
    // still make itself appear first by defining a lower weight.
    $build['#attached']['library'][] = 'core/jquery';
    $build['#attached']['library'][] = 'common_test/weight';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);

    // Verify that lighter CSS assets are rendered first.
    $this
      ->assertLessThan(strpos($rendered_js, 'first.js'), strpos($rendered_js, 'lighter.css'));

    // Verify that lighter JavaScript assets are rendered first.
    $this
      ->assertLessThan(strpos($rendered_js, 'first.js'), strpos($rendered_js, 'lighter.js'));

    // Verify that a JavaScript file is rendered before jQuery.
    $this
      ->assertLessThan(strpos($rendered_js, 'core/assets/vendor/jquery/jquery.min.js'), strpos($rendered_js, 'before-jquery.js'));
  }

  /**
   * Tests altering a JavaScript's weight via hook_js_alter().
   *
   * @see common_test_js_alter()
   */
  public function testAlter() {

    // Add both tableselect.js and alter.js.
    $build['#attached']['library'][] = 'core/drupal.tableselect';
    $build['#attached']['library'][] = 'common_test/hook_js_alter';
    $assets = AttachedAssets::createFromRenderArray($build);

    // Render the JavaScript, testing if alter.js was altered to be before
    // tableselect.js. See common_test_js_alter() to see where this alteration
    // takes place.
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);

    // Verify that JavaScript weight is correctly altered by the alter hook.
    $this
      ->assertLessThan(strpos($rendered_js, 'core/misc/tableselect.js'), strpos($rendered_js, 'alter.js'));
  }

  /**
   * Adds a JavaScript library to the page and alters it.
   *
   * @see common_test_library_info_alter()
   */
  public function testLibraryAlter() {

    // Verify that common_test altered the title of Farbtastic.

    /** @var \Drupal\Core\Asset\LibraryDiscoveryInterface $library_discovery */
    $library_discovery = \Drupal::service('library.discovery');
    $library = $library_discovery
      ->getLibraryByName('core', 'jquery.farbtastic');
    $this
      ->assertEquals('0.0', $library['version'], 'Registered libraries were altered.');

    // common_test_library_info_alter() also added a dependency on jQuery Form.
    $build['#attached']['library'][] = 'core/jquery.farbtastic';
    $assets = AttachedAssets::createFromRenderArray($build);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $this
      ->assertStringContainsString('core/assets/vendor/jquery-form/jquery.form.min.js', (string) $rendered_js, 'Altered library dependencies are added to the page.');
  }

  /**
   * Dynamically defines an asset library and alters it.
   */
  public function testDynamicLibrary() {

    /** @var \Drupal\Core\Asset\LibraryDiscoveryInterface $library_discovery */
    $library_discovery = \Drupal::service('library.discovery');

    // Retrieve a dynamic library definition.
    // @see common_test_library_info_build()
    \Drupal::state()
      ->set('common_test.library_info_build_test', TRUE);
    $library_discovery
      ->clearCachedDefinitions();
    $dynamic_library = $library_discovery
      ->getLibraryByName('common_test', 'dynamic_library');
    $this
      ->assertIsArray($dynamic_library);
    $this
      ->assertArrayHasKey('version', $dynamic_library);
    $this
      ->assertSame('1.0', $dynamic_library['version']);

    // Make sure the dynamic library definition could be altered.
    // @see common_test_library_info_alter()
    $this
      ->assertArrayHasKey('dependencies', $dynamic_library);
    $this
      ->assertSame([
      'core/jquery',
    ], $dynamic_library['dependencies']);
  }

  /**
   * Tests that multiple modules can implement libraries with the same name.
   *
   * @see common_test.library.yml
   */
  public function testLibraryNameConflicts() {

    /** @var \Drupal\Core\Asset\LibraryDiscoveryInterface $library_discovery */
    $library_discovery = \Drupal::service('library.discovery');
    $farbtastic = $library_discovery
      ->getLibraryByName('common_test', 'jquery.farbtastic');
    $this
      ->assertEquals('0.1', $farbtastic['version'], 'Alternative libraries can be added to the page.');
  }

  /**
   * Tests JavaScript files that have query strings attached get added right.
   */
  public function testAddJsFileWithQueryString() {
    $build['#attached']['library'][] = 'common_test/querystring';
    $assets = AttachedAssets::createFromRenderArray($build);
    $css = $this->assetResolver
      ->getCssAssets($assets, FALSE);
    $js = $this->assetResolver
      ->getJsAssets($assets, FALSE)[1];
    $this
      ->assertArrayHasKey('core/modules/system/tests/modules/common_test/querystring.css?arg1=value1&arg2=value2', $css);
    $this
      ->assertArrayHasKey('core/modules/system/tests/modules/common_test/querystring.js?arg1=value1&arg2=value2', $js);
    $css_render_array = \Drupal::service('asset.css.collection_renderer')
      ->render($css);
    $rendered_css = $this->renderer
      ->renderPlain($css_render_array);
    $js_render_array = \Drupal::service('asset.js.collection_renderer')
      ->render($js);
    $rendered_js = $this->renderer
      ->renderPlain($js_render_array);
    $query_string = $this->container
      ->get('state')
      ->get('system.css_js_query_string') ?: '0';
    $this
      ->assertStringContainsString('<link rel="stylesheet" media="all" href="' . str_replace('&', '&amp;', $this->fileUrlGenerator
      ->generateString('core/modules/system/tests/modules/common_test/querystring.css?arg1=value1&arg2=value2')) . '&amp;' . $query_string . '" />', $rendered_css, 'CSS file with query string gets version query string correctly appended..');
    $this
      ->assertStringContainsString('<script src="' . str_replace('&', '&amp;', $this->fileUrlGenerator
      ->generateString('core/modules/system/tests/modules/common_test/querystring.js?arg1=value1&arg2=value2')) . '&amp;' . $query_string . '"></script>', $rendered_js, 'JavaScript file with query string gets version query string correctly appended.');
  }

}

Members

Name	Modifiers	Type	Description	Overrides
AssertContentTrait::$content	protected	property	The current raw content.
AssertContentTrait::$drupalSettings	protected	property	The drupalSettings value from the current raw $content.
AssertContentTrait::$elements	protected	property	The XML structure parsed from the current raw $content.	1
AssertContentTrait::$plainTextContent	protected	property	The plain-text content of raw $content (text nodes).
AssertContentTrait::assertEscaped	protected	function	Passes if the raw text IS found escaped on the loaded page, fail otherwise.
AssertContentTrait::assertField	protected	function	Asserts that a field exists with the given name or ID.
AssertContentTrait::assertFieldById	protected	function	Asserts that a field exists with the given ID and value.
AssertContentTrait::assertFieldByName	protected	function	Asserts that a field exists with the given name and value.
AssertContentTrait::assertFieldByXPath	protected	function	Asserts that a field exists in the current page by the given XPath.
AssertContentTrait::assertFieldChecked	protected	function	Asserts that a checkbox field in the current page is checked.
AssertContentTrait::assertFieldsByValue	protected	function	Asserts that a field exists in the current page with a given Xpath result.
AssertContentTrait::assertLink	protected	function	Passes if a link with the specified label is found.
AssertContentTrait::assertLinkByHref	protected	function	Passes if a link containing a given href (part) is found.
AssertContentTrait::assertNoDuplicateIds	protected	function	Asserts that each HTML ID is used for just a single element.
AssertContentTrait::assertNoEscaped	protected	function	Passes if the raw text IS NOT found escaped on the loaded page, fail otherwise.
AssertContentTrait::assertNoField	protected	function	Asserts that a field does not exist with the given name or ID.
AssertContentTrait::assertNoFieldById	protected	function	Asserts that a field does not exist with the given ID and value.
AssertContentTrait::assertNoFieldByName	protected	function	Asserts that a field does not exist with the given name and value.
AssertContentTrait::assertNoFieldByXPath	protected	function	Asserts that a field does not exist or its value does not match, by XPath.
AssertContentTrait::assertNoFieldChecked	protected	function	Asserts that a checkbox field in the current page is not checked.
AssertContentTrait::assertNoLink	protected	function	Passes if a link with the specified label is not found.
AssertContentTrait::assertNoLinkByHref	protected	function	Passes if a link containing a given href (part) is not found.
AssertContentTrait::assertNoLinkByHrefInMainRegion	protected	function	Passes if a link containing a given href is not found in the main region.
AssertContentTrait::assertNoOption	protected	function	Asserts that a select option in the current page does not exist.
AssertContentTrait::assertNoOptionSelected	protected	function	Asserts that a select option in the current page is not checked.
AssertContentTrait::assertNoPattern	protected	function	Triggers a pass if the perl regex pattern is not found in raw content.
AssertContentTrait::assertNoRaw	protected	function	Passes if the raw text is NOT found on the loaded page, fail otherwise.
AssertContentTrait::assertNoText	protected	function	Passes if the page (with HTML stripped) does not contains the text.
AssertContentTrait::assertNoTitle	protected	function	Pass if the page title is not the given string.
AssertContentTrait::assertNoUniqueText	protected	function	Passes if the text is found MORE THAN ONCE on the text version of the page.
AssertContentTrait::assertOption	protected	function	Asserts that a select option in the current page exists.
AssertContentTrait::assertOptionByText	protected	function	Asserts that a select option with the visible text exists.
AssertContentTrait::assertOptionSelected	protected	function	Asserts that a select option in the current page is checked.
AssertContentTrait::assertOptionSelectedWithDrupalSelector	protected	function	Asserts that a select option in the current page is checked.
AssertContentTrait::assertOptionWithDrupalSelector	protected	function	Asserts that a select option in the current page exists.
AssertContentTrait::assertPattern	protected	function	Triggers a pass if the Perl regex pattern is found in the raw content.
AssertContentTrait::assertRaw	protected	function	Passes if the raw text IS found on the loaded page, fail otherwise.
AssertContentTrait::assertText	protected	function	Passes if the page (with HTML stripped) contains the text.
AssertContentTrait::assertTextHelper	protected	function	Helper for assertText and assertNoText.
AssertContentTrait::assertTextPattern	protected	function	Asserts that a Perl regex pattern is found in the plain-text content.
AssertContentTrait::assertThemeOutput	protected	function	Asserts themed output.
AssertContentTrait::assertTitle	protected	function	Pass if the page title is the given string.
AssertContentTrait::assertUniqueText	protected	function	Passes if the text is found ONLY ONCE on the text version of the page.
AssertContentTrait::assertUniqueTextHelper	protected	function	Helper for assertUniqueText and assertNoUniqueText.
AssertContentTrait::buildXPathQuery	protected	function	Builds an XPath query.
AssertContentTrait::constructFieldXpath	protected	function	Helper: Constructs an XPath for the given set of attributes and value.
AssertContentTrait::cssSelect	protected	function	Searches elements using a CSS selector in the raw content.
AssertContentTrait::getAllOptions	protected	function	Get all option elements, including nested options, in a select.
AssertContentTrait::getDrupalSettings	protected	function	Gets the value of drupalSettings for the currently-loaded page.
AssertContentTrait::getRawContent	protected	function	Gets the current raw content.
AssertContentTrait::getSelectedItem	protected	function	Get the selected value from a select field.
AssertContentTrait::getTextContent	protected	function	Retrieves the plain-text content from the current raw content.
AssertContentTrait::parse	protected	function	Parse content returned from curlExec using DOM and SimpleXML.
AssertContentTrait::removeWhiteSpace	protected	function	Removes all white-space between HTML tags from the raw content.
AssertContentTrait::setDrupalSettings	protected	function	Sets the value of drupalSettings for the currently-loaded page.
AssertContentTrait::setRawContent	protected	function	Sets the raw content (e.g. HTML).
AssertContentTrait::xpath	protected	function	Performs an xpath search on the contents of the internal browser.
AttachedAssetsTest::$assetResolver	protected	property	The asset resolver service.
AttachedAssetsTest::$fileUrlGenerator	protected	property	The file URL generator.
AttachedAssetsTest::$modules	protected static	property	Modules to enable. Overrides KernelTestBase::$modules
AttachedAssetsTest::$renderer	protected	property	The renderer service.
AttachedAssetsTest::setUp	protected	function	Overrides KernelTestBase::setUp
AttachedAssetsTest::testAddExternalFiles	public	function	Tests adding external CSS and JavaScript files.
AttachedAssetsTest::testAddFiles	public	function	Tests adding a CSS and a JavaScript file.
AttachedAssetsTest::testAddJsFileWithQueryString	public	function	Tests JavaScript files that have query strings attached get added right.
AttachedAssetsTest::testAddJsSettings	public	function	Tests adding JavaScript settings.
AttachedAssetsTest::testAggregatedAttributes	public	function	Tests that attributes are maintained when JS aggregation is enabled.
AttachedAssetsTest::testAggregation	public	function	Integration test for CSS/JS aggregation.
AttachedAssetsTest::testAlter	public	function	Tests altering a JavaScript's weight via hook_js_alter().
AttachedAssetsTest::testAttributes	public	function	Tests adding JavaScript files with additional attributes.
AttachedAssetsTest::testDefault	public	function	Tests that default CSS and JavaScript is empty.
AttachedAssetsTest::testDynamicLibrary	public	function	Dynamically defines an asset library and alters it.
AttachedAssetsTest::testHeaderHTML	public	function	Tests JS assets depending on the 'core/<head>' virtual library.
AttachedAssetsTest::testLibraryAlter	public	function	Adds a JavaScript library to the page and alters it.
AttachedAssetsTest::testLibraryNameConflicts	public	function	Tests that multiple modules can implement libraries with the same name.
AttachedAssetsTest::testLibraryUnknown	public	function	Tests non-existing libraries.
AttachedAssetsTest::testNoCache	public	function	Tests that for assets with cache = FALSE, Drupal sets preprocess = FALSE.
AttachedAssetsTest::testRenderDifferentWeight	public	function	Tests rendering the JavaScript with a file's weight above jQuery's.
AttachedAssetsTest::testRenderOrder	public	function	Tests JavaScript and CSS asset ordering.
AttachedAssetsTest::testSettings	public	function	Tests JavaScript settings.
AttachedAssetsTest::testVersionQueryString	public	function	Tests JavaScript versioning.
ConfigTestTrait::configImporter	protected	function	Returns a ConfigImporter object to import test configuration.
ConfigTestTrait::copyConfig	protected	function	Copies configuration objects from source storage to target storage.
ExtensionListTestTrait::getModulePath	protected	function	Gets the path for the specified module.
ExtensionListTestTrait::getThemePath	protected	function	Gets the path for the specified theme.
KernelTestBase::$backupGlobals	protected	property	Back up and restore any global variables that may be changed by tests.
KernelTestBase::$backupStaticAttributes	protected	property	Back up and restore static class properties that may be changed by tests.
KernelTestBase::$backupStaticAttributesBlacklist	protected	property	Contains a few static class properties for performance.
KernelTestBase::$classLoader	protected	property
KernelTestBase::$configImporter	protected	property	@todo Move into Config test base class.	3
KernelTestBase::$configSchemaCheckerExclusions	protected static	property	An array of config object names that are excluded from schema checking.
KernelTestBase::$container	protected	property
KernelTestBase::$databasePrefix	protected	property
KernelTestBase::$preserveGlobalState	protected	property	Do not forward any global state from the parent process to the processes that run the actual tests.
KernelTestBase::$root	protected	property	The app root.
KernelTestBase::$runTestInSeparateProcess	protected	property	Kernel tests are run in separate processes because they allow autoloading of code from extensions. Running the test in a separate process isolates this behavior from other tests. Subclasses should not override this property.
KernelTestBase::$siteDirectory	protected	property
KernelTestBase::$strictConfigSchema	protected	property	Set to TRUE to strict check all configuration saved.	4
KernelTestBase::$vfsRoot	protected	property	The virtual filesystem root directory.
KernelTestBase::assertPostConditions	protected	function		1
KernelTestBase::bootEnvironment	protected	function	Bootstraps a basic test environment.
KernelTestBase::bootKernel	private	function	Bootstraps a kernel for a test.
KernelTestBase::config	protected	function	Configuration accessor for tests. Returns non-overridden configuration.
KernelTestBase::disableModules	protected	function	Disables modules for this test.
KernelTestBase::enableModules	protected	function	Enables modules for this test.
KernelTestBase::getConfigSchemaExclusions	protected	function	Gets the config schema exclusions for this test.
KernelTestBase::getDatabaseConnectionInfo	protected	function	Returns the Database connection info to be used for this test.	2
KernelTestBase::getDatabasePrefix	public	function
KernelTestBase::getExtensionsForModules	private	function	Returns Extension objects for $modules to enable.
KernelTestBase::getModulesToEnable	private static	function	Returns the modules to enable for this test.
KernelTestBase::initFileCache	protected	function	Initializes the FileCache component.
KernelTestBase::installConfig	protected	function	Installs default configuration for a given list of modules.
KernelTestBase::installEntitySchema	protected	function	Installs the storage schema for a specific entity type.
KernelTestBase::installSchema	protected	function	Installs database tables from a module schema definition.
KernelTestBase::prepareTemplate	protected	function
KernelTestBase::register	public	function	Registers test-specific services. Overrides ServiceProviderInterface::register	14
KernelTestBase::render	protected	function	Renders a render array.
KernelTestBase::setInstallProfile	protected	function	Sets the install profile and rebuilds the container to update it.
KernelTestBase::setSetting	protected	function	Sets an in-memory Settings variable.
KernelTestBase::setUpBeforeClass	public static	function
KernelTestBase::setUpFilesystem	protected	function	Sets up the filesystem, so things like the file directory.	1
KernelTestBase::stop	protected	function	Stops test execution.
KernelTestBase::tearDown	protected	function		3
KernelTestBase::tearDownCloseDatabaseConnection	public	function	@after
KernelTestBase::vfsDump	protected	function	Dumps the current state of the virtual filesystem to STDOUT.
KernelTestBase::__sleep	public	function	Prevents serializing any properties.
PhpUnitWarnings::$deprecationWarnings	private static	property	Deprecation warnings from PHPUnit to raise with @trigger_error().
PhpUnitWarnings::addWarning	public	function	Converts PHPUnit deprecation warnings to E_USER_DEPRECATED.
RandomGeneratorTrait::$randomGenerator	protected	property	The random generator.
RandomGeneratorTrait::getRandomGenerator	protected	function	Gets the random generator for the utility methods.
RandomGeneratorTrait::randomMachineName	protected	function	Generates a unique random string containing letters and numbers.
RandomGeneratorTrait::randomObject	public	function	Generates a random PHP object.
RandomGeneratorTrait::randomString	public	function	Generates a pseudo-random string of ASCII characters of codes 32 to 126.
RandomGeneratorTrait::randomStringValidate	public	function	Callback for random string validation.
StorageCopyTrait::replaceStorageContents	protected static	function	Copy the configuration from one storage to another and remove stale items.
TestRequirementsTrait::checkModuleRequirements	private	function	Checks missing module requirements.
TestRequirementsTrait::checkRequirements	protected	function	Check module requirements for the Drupal use case.
TestRequirementsTrait::getDrupalRoot	protected static	function	Returns the Drupal root directory.

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class AttachedAssetsTest in Drupal 10

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