public function FormBuilderTest::testUniqueHtmlId in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/Tests/Core/Form/FormBuilderTest.php \Drupal\Tests\Core\Form\FormBuilderTest::testUniqueHtmlId()

Tests that HTML IDs are unique when rebuilding a form with errors.

File

core/tests/Drupal/Tests/Core/Form/FormBuilderTest.php, line 465

Contains \Drupal\Tests\Core\Form\FormBuilderTest.

Class

FormBuilderTest

@coversDefaultClass \Drupal\Core\Form\FormBuilder @group Form

Namespace

Drupal\Tests\Core\Form

Code

public function testUniqueHtmlId() {
  $form_id = 'test_form_id';
  $expected_form = $form_id();
  $expected_form['test']['#required'] = TRUE;

  // Mock a form object that will be built two times.
  $form_arg = $this
    ->createMock('Drupal\\Core\\Form\\FormInterface');
  $form_arg
    ->expects($this
    ->exactly(2))
    ->method('getFormId')
    ->will($this
    ->returnValue($form_id));
  $form_arg
    ->expects($this
    ->exactly(2))
    ->method('buildForm')
    ->will($this
    ->returnValue($expected_form));
  $form_state = new FormState();
  $form = $this
    ->simulateFormSubmission($form_id, $form_arg, $form_state);
  $this
    ->assertSame('test-form-id', $form['#id']);
  $form_state = new FormState();
  $form = $this
    ->simulateFormSubmission($form_id, $form_arg, $form_state);
  $this
    ->assertSame('test-form-id--2', $form['#id']);
}