function UpdateCacheTest::testCaches
Tests that caches are cleared during updates.
See also
\Drupal\Core\Update\UpdateServiceProvider
\Drupal\Core\Update\UpdateBackend
File
- 
              core/
modules/ system/ tests/ src/ Functional/ UpdateSystem/ UpdateCacheTest.php, line 32  
Class
- UpdateCacheTest
 - Tests caches during updates.
 
Namespace
Drupal\Tests\system\Functional\UpdateSystemCode
public function testCaches() : void {
  \Drupal::cache()->set('will_not_exist_after_update', TRUE);
  // The site might be broken at the time so logging in using the UI might
  // not work, so we use the API itself.
  $this->writeSettings([
    'settings' => [
      'update_free_access' => (object) [
        'value' => TRUE,
        'required' => TRUE,
      ],
    ],
  ]);
  // Clicking continue should clear the caches.
  $this->drupalGet(Url::fromRoute('system.db_update', [], [
    'path_processing' => FALSE,
  ]));
  $this->updateRequirementsProblem();
  $this->clickLink('Continue');
  $this->assertFalse(\Drupal::cache()->get('will_not_exist_after_update', FALSE));
}
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.