protected function HtmlResponseAttachmentsTest::assertHead in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/system/tests/src/Functional/Render/HtmlResponseAttachmentsTest.php \Drupal\Tests\system\Functional\Render\HtmlResponseAttachmentsTest::assertHead()

Helper function to make assertions about HTML head elements.

2 calls to HtmlResponseAttachmentsTest::assertHead()

HtmlResponseAttachmentsTest::testAttachments in core/modules/system/tests/src/Functional/Render/HtmlResponseAttachmentsTest.php

Tests rendering of ['#attached'].

HtmlResponseAttachmentsTest::testRenderCachedBlock in core/modules/system/tests/src/Functional/Render/HtmlResponseAttachmentsTest.php

Tests caching of ['#attached'].

File

core/modules/system/tests/src/Functional/Render/HtmlResponseAttachmentsTest.php, line 134

Class

HtmlResponseAttachmentsTest

Functional tests for HtmlResponseAttachmentsProcessor.

Namespace

Drupal\Tests\system\Functional\Render

Code

protected function assertHead() {

  // Discover the DOM element for the meta link.
  $test_meta = $this
    ->xpath('//head/meta[@test-attribute="testvalue"]');
  $this
    ->assertCount(1, $test_meta, 'There\'s only one test attribute.');

  // Grab the only DOM element.
  $test_meta = reset($test_meta);
  if (empty($test_meta)) {
    $this
      ->fail('Unable to find the head meta.');
  }
  else {
    $this
      ->assertEquals('testvalue', $test_meta
      ->getAttribute('test-attribute'));
  }
}