public function AttachedAssetsTest::testAggregation in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/KernelTests/Core/Asset/AttachedAssetsTest.php \Drupal\KernelTests\Core\Asset\AttachedAssetsTest::testAggregation()

Integration test for CSS/JS aggregation.

File

core/tests/Drupal/KernelTests/Core/Asset/AttachedAssetsTest.php, line 170

Class

AttachedAssetsTest

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

Namespace

Drupal\KernelTests\Core\Asset

Code

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.');
  list($header_js, $footer_js) = $this->assetResolver
    ->getJsAssets($assets, TRUE);
  $this
    ->assertEqual([], \Drupal::service('asset.js.collection_renderer')
    ->render($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
    ->assertEqual('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.');
}