function FormTest::testDisabledElements in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/modules/system/src/Tests/Form/FormTest.php \Drupal\system\Tests\Form\FormTest::testDisabledElements()

Test handling of disabled elements.

See also

_form_test_disabled_elements()

File

core/modules/system/src/Tests/Form/FormTest.php, line 575

Contains \Drupal\system\Tests\Form\FormTest.

Class

FormTest

Tests various form element validation mechanisms.

Namespace

Drupal\system\Tests\Form

Code

function testDisabledElements() {

  // Get the raw form in its original state.
  $form_state = new FormState();
  $form = (new FormTestDisabledElementsForm())
    ->buildForm(array(), $form_state);

  // Build a submission that tries to hijack the form by submitting input for
  // elements that are disabled.
  $edit = array();
  foreach (Element::children($form) as $key) {
    if (isset($form[$key]['#test_hijack_value'])) {
      if (is_array($form[$key]['#test_hijack_value'])) {
        foreach ($form[$key]['#test_hijack_value'] as $subkey => $value) {
          $edit[$key . '[' . $subkey . ']'] = $value;
        }
      }
      else {
        $edit[$key] = $form[$key]['#test_hijack_value'];
      }
    }
  }

  // Submit the form with no input, as the browser does for disabled elements,
  // and fetch the $form_state->getValues() that is passed to the submit handler.
  $this
    ->drupalPostForm('form-test/disabled-elements', array(), t('Submit'));
  $returned_values['normal'] = Json::decode($this->content);

  // Do the same with input, as could happen if JavaScript un-disables an
  // element. drupalPostForm() emulates a browser by not submitting input for
  // disabled elements, so we need to un-disable those elements first.
  $this
    ->drupalGet('form-test/disabled-elements');
  $disabled_elements = array();
  foreach ($this
    ->xpath('//*[@disabled]') as $element) {
    $disabled_elements[] = (string) $element['name'];
    unset($element['disabled']);
  }

  // All the elements should be marked as disabled, including the ones below
  // the disabled container.
  $actual_count = count($disabled_elements);
  $expected_count = 42;
  $this
    ->assertEqual($actual_count, $expected_count, SafeMarkup::format('Found @actual elements with disabled property (expected @expected).', array(
    '@actual' => count($disabled_elements),
    '@expected' => $expected_count,
  )));
  $this
    ->drupalPostForm(NULL, $edit, t('Submit'));
  $returned_values['hijacked'] = Json::decode($this->content);

  // Ensure that the returned values match the form's default values in both
  // cases.
  foreach ($returned_values as $values) {
    $this
      ->assertFormValuesDefault($values, $form);
  }
}