function FormBuilderTest::testGetCache

Tests the getCache() method.

File

core/tests/Drupal/Tests/Core/Form/FormBuilderTest.php, line 434

Class

FormBuilderTest

@coversDefaultClass \Drupal\Core\Form\FormBuilder[[api-linebreak]] @group Form

Namespace

Code

public function testGetCache() : void {
  $form_id = 'test_form_id';
  $expected_form = $form_id();
  $expected_form['#token'] = FALSE;
  // FormBuilder::buildForm() will be called twice, but the form object will
  // only be called once due to caching.
  $form_arg = $this->createMock('Drupal\\Core\\Form\\FormInterface');
  $form_arg->expects($this->exactly(2))
    ->method('getFormId')
    ->willReturn($form_id);
  $form_arg->expects($this->once())
    ->method('buildForm')
    ->willReturn($expected_form);
  // Do an initial build of the form and track the build ID.
  $form_state = (new FormState())->addBuildInfo('files', [
    [
      'module' => 'node',
      'type' => 'pages.inc',
    ],
  ])
    ->setRequestMethod('POST')
    ->setCached();
  $form = $this->formBuilder
    ->buildForm($form_arg, $form_state);
  $cached_form = $form;
  $cached_form['#cache_token'] = 'csrf_token';
  // The form cache, form_state cache, and CSRF token validation will only be
  // called on the cached form.
  $this->formCache
    ->expects($this->once())
    ->method('getCache')
    ->willReturn($form);
  // The final form build will not trigger any actual form building, but will
  // use the form cache.
  $form_state->setExecuted();
  $input['form_id'] = $form_id;
  $input['form_build_id'] = $form['#build_id'];
  $form_state->setUserInput($input);
  $this->formBuilder
    ->buildForm($form_arg, $form_state);
  $this->assertEmpty($form_state->getErrors());
}