public function ThemeTest::testThemeSettingsRenderCacheClear in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/system/tests/src/Functional/System/ThemeTest.php \Drupal\Tests\system\Functional\System\ThemeTest::testThemeSettingsRenderCacheClear()

Tests the 'rendered' cache tag is cleared when saving theme settings.

File

core/modules/system/tests/src/Functional/System/ThemeTest.php, line 263

Class

ThemeTest

Tests the theme interface functionality by enabling and switching themes, and using an administration theme.

Namespace

Drupal\Tests\system\Functional\System

Code

public function testThemeSettingsRenderCacheClear() {
  $this->container
    ->get('theme_installer')
    ->install([
    'bartik',
  ]);

  // Ensure the frontpage is cached for anonymous users. The render cache will
  // cleared by installing a theme.
  $this
    ->drupalLogout();
  $this
    ->drupalGet('');
  $this
    ->assertEquals('MISS', $this
    ->getSession()
    ->getResponseHeader('X-Drupal-Cache'));
  $this
    ->drupalGet('');
  $this
    ->assertEquals('HIT', $this
    ->getSession()
    ->getResponseHeader('X-Drupal-Cache'));
  $this
    ->drupalLogin($this->adminUser);

  // Save Bartik's theme settings which should invalidate the 'rendered' cache
  // tag in \Drupal\system\EventSubscriber\ConfigCacheTag.
  $this
    ->drupalPostForm('admin/appearance/settings/bartik', [], t('Save configuration'));
  $this
    ->drupalLogout();
  $this
    ->drupalGet('');
  $this
    ->assertEquals('MISS', $this
    ->getSession()
    ->getResponseHeader('X-Drupal-Cache'));
}