function JsCollectionGrouperUnitTest::testGrouperWithAggregateTargets

Tests \Drupal\Core\Asset\CssCollectionGrouper.

File

core/tests/Drupal/Tests/Core/Asset/JsCollectionGrouperUnitTest.php, line 36

Class

JsCollectionGrouperUnitTest

Tests the CSS asset collection grouper.

Namespace

Code

public function testGrouperWithAggregateTargets() : void {
  $js_assets = [
    'a.js' => [
      'group' => -100,
      'type' => 'file',
      'weight' => 0,
      'preprocess' => TRUE,
      'aggregate_target' => [
        'js' => TRUE,
      ],
      'data' => 'a.js',
      'basename' => 'a.js',
      'library' => 'base',
    ],
    'b.js' => [
      'group' => -100,
      'type' => 'file',
      'weight' => 0.05,
      'preprocess' => TRUE,
      'aggregate_target' => [
        'js' => TRUE,
      ],
      'data' => 'b.js',
      'basename' => 'c.js',
      'library' => 'base',
    ],
    'c.js' => [
      'group' => -100,
      'type' => 'file',
      'weight' => 0.1,
      'preprocess' => TRUE,
      'aggregate_target' => [
        'js' => TRUE,
      ],
      'data' => 'c.js',
      'basename' => 'c.js',
      'library' => 'base',
    ],
  ];
  $groups = $this->grouper
    ->group($js_assets);
  // When all files are sequentially in the same library, the resultant group
  // should have the 'libraries' key set.
  $this->assertArrayHasKey('libraries', $groups[0]);
  $this->assertCount(1, $groups);
  // Now change b.js to be in a separate library. Because its position
  // is in-between a.js and c.js it will force a fallback in the
  // aggregate_target logic, resulting in three groups, and only b.js
  // having the 'libraries' key.
  $js_assets['b.js']['library'] = 'different';
  $groups = $this->grouper
    ->group($js_assets);
  $this->assertArrayNotHasKey('libraries', $groups[0]);
  $this->assertArrayHasKey('libraries', $groups[1]);
  $this->assertArrayNotHasKey('libraries', $groups[2]);
  $this->assertCount(3, $groups);
  // Now set aggregate_target FALSE for b.js.
  $js_assets['b.js']['aggregate_target']['js'] = FALSE;
  $groups = $this->grouper
    ->group($js_assets);
  $this->assertArrayNotHasKey('libraries', $groups[0]);
  // Even though the second asset doesn't specify an aggregate target,
  // the library is self contained in a single asset group so the libraries
  // key can be used.
  $this->assertArrayHasKey('libraries', $groups[1]);
  $this->assertArrayNotHasKey('libraries', $groups[2]);
  $this->assertCount(3, $groups);
  // With aggregate_target FALSE for all three files, there should be one
  // group. The libraries key is added even though there was no aggregate
  // target because all of the libraries were encapsulated within the asset
  // group.
  $js_assets['a.js']['aggregate_target']['js'] = FALSE;
  $js_assets['c.js']['aggregate_target']['js'] = FALSE;
  $groups = $this->grouper
    ->group($js_assets);
  $this->assertArrayHasKey('libraries', $groups[0]);
  $this->assertCount(1, $groups);
}