public function JavascriptGetDrupalSettingsTest::testGetDrupalSettings in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/FunctionalJavascriptTests/JavascriptGetDrupalSettingsTest.php \Drupal\FunctionalJavascriptTests\JavascriptGetDrupalSettingsTest::testGetDrupalSettings()

Tests retrieval of Drupal settings.

See also

\Drupal\FunctionalJavascriptTests\WebDriverTestBase::getDrupalSettings()

File

core/tests/Drupal/FunctionalJavascriptTests/JavascriptGetDrupalSettingsTest.php, line 27

Class

JavascriptGetDrupalSettingsTest

Tests Drupal settings retrieval in WebDriverTestBase tests.

Namespace

Drupal\FunctionalJavascriptTests

Code

public function testGetDrupalSettings() {
  $this
    ->drupalLogin($this
    ->drupalCreateUser());
  $this
    ->drupalGet('test-page');

  // Check that we can read the JS settings.
  $js_settings = $this
    ->getDrupalSettings();
  $this
    ->assertSame('azAZ09();.,\\\\/-_{}', $js_settings['test-setting']);

  // Dynamically change the setting using JavaScript.
  $script = <<<EndOfScript
(function () {
  drupalSettings['test-setting'] = 'foo';
})();
EndOfScript;
  $this
    ->getSession()
    ->evaluateScript($script);

  // Check that the setting has been changed.
  $js_settings = $this
    ->getDrupalSettings();
  $this
    ->assertSame('foo', $js_settings['test-setting']);
}