public function DisplayVariantTest::testPageDisplayVariantSelectionEvent in Drupal 9

Same name and namespace in other branches

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

Tests selecting the variant and passing configuration.

File

core/modules/system/tests/src/Functional/Render/DisplayVariantTest.php, line 29

Class

DisplayVariantTest

Tests selecting a display variant.

Namespace

Drupal\Tests\system\Functional\Render

Code

public function testPageDisplayVariantSelectionEvent() {

  // Tests that our display variant was selected, and that its configuration
  // was passed correctly. If the configuration wasn't passed, we'd get an
  // error page here.
  $this
    ->drupalGet('<front>');
  $this
    ->assertSession()
    ->pageTextContains('A very important, required value.');
  $this
    ->assertSession()
    ->pageTextContains('Explicitly passed in context.');
  $this
    ->assertSession()
    ->responseHeaderContains('X-Drupal-Cache-Tags', 'custom_cache_tag');
}