function AjaxTest::testDrupalSettingsCachingRegression

Tests that AJAX loaded libraries are not retained between requests.

See also

https://www.drupal.org/node/2647916

File

core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxTest.php, line 58

Class

AjaxTest

Tests AJAX responses.

Namespace

Code

public function testDrupalSettingsCachingRegression() : void {
  $this->drupalGet('ajax-test/dialog');
  $assert = $this->assertSession();
  $session = $this->getSession();
  // Insert a fake library into the already loaded library settings.
  $fake_library = 'fakeLibrary/fakeLibrary';
  $libraries = $session->evaluateScript("drupalSettings.ajaxPageState.libraries");
  $libraries = UrlHelper::compressQueryParameter(UrlHelper::uncompressQueryParameter($libraries) . ',' . $fake_library);
  $session->evaluateScript("drupalSettings.ajaxPageState.libraries = '{$libraries}';");
  $ajax_page_state = $session->evaluateScript("drupalSettings.ajaxPageState");
  $libraries = UrlHelper::uncompressQueryParameter($ajax_page_state['libraries']);
  // Test that the fake library is set.
  $this->assertStringContainsString($fake_library, $libraries);
  // Click on the AJAX link.
  $this->clickLink('Link 8 (ajax)');
  $assert->assertWaitOnAjaxRequest();
  // Test that the fake library is still set after the AJAX call.
  $ajax_page_state = $session->evaluateScript("drupalSettings.ajaxPageState");
  // Test that the fake library is set.
  $this->assertStringContainsString($fake_library, UrlHelper::uncompressQueryParameter($ajax_page_state['libraries']));
  // Reload the page, this should reset the loaded libraries and remove the
  // fake library.
  $this->drupalGet('ajax-test/dialog');
  $ajax_page_state = $session->evaluateScript("drupalSettings.ajaxPageState");
  $this->assertStringNotContainsString($fake_library, UrlHelper::uncompressQueryParameter($ajax_page_state['libraries']));
  // Click on the AJAX link again, and the libraries should still not contain
  // the fake library.
  $this->clickLink('Link 8 (ajax)');
  $assert->assertWaitOnAjaxRequest();
  $ajax_page_state = $session->evaluateScript("drupalSettings.ajaxPageState");
  $this->assertStringNotContainsString($fake_library, UrlHelper::uncompressQueryParameter($ajax_page_state['libraries']));
}