function AttachedAssetsTest::testAddExternalFiles

Tests adding external CSS and JavaScript files.

File

core/tests/Drupal/KernelTests/Core/Asset/AttachedAssetsTest.php, line 127

Class

AttachedAssetsTest

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

Namespace

Code

public function testAddExternalFiles() : void {
    $build['#attached']['library'][] = 'common_test/external';
    $assets = AttachedAssets::createFromRenderArray($build);
    $css = $this->assetResolver
        ->getCssAssets($assets, FALSE, \Drupal::languageManager()->getCurrentLanguage());
    $js = $this->assetResolver
        ->getJsAssets($assets, FALSE, \Drupal::languageManager()->getCurrentLanguage())[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 = (string) $this->renderer
        ->renderInIsolation($css_render_array);
    $rendered_js = (string) $this->renderer
        ->renderInIsolation($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.');
}