function HtmlResponseAttachmentsTest::assertHead

Same name and namespace in other branches
  1. 9 core/modules/system/tests/src/Functional/Render/HtmlResponseAttachmentsTest.php \Drupal\Tests\system\Functional\Render\HtmlResponseAttachmentsTest::assertHead()
  2. 8.9.x core/modules/system/tests/src/Functional/Render/HtmlResponseAttachmentsTest.php \Drupal\Tests\system\Functional\Render\HtmlResponseAttachmentsTest::assertHead()
  3. 11.x 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.

@internal

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 145

Class

HtmlResponseAttachmentsTest
Functional tests for HtmlResponseAttachmentsProcessor.

Namespace

Drupal\Tests\system\Functional\Render

Code

protected function assertHead() : void {
  // Discover the DOM element for the meta link.
  $test_meta = $this->xpath('//head/meta[@test-attribute="test_value"]');
  $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('test_value', $test_meta->getAttribute('test-attribute'));
  }
}

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