class JsWebAssertTestForm

class JsWebAssertTestForm extends FormBase {
    
    /**
     * {@inheritdoc}
     */
    public function getFormId() {
        return 'js_webassert_test_form';
    }
    
    /**
     * Form for testing the addition of various types of elements via AJAX.
     */
    public function buildForm(array $form, FormStateInterface $form_state) {
        $form['#prefix'] = '<div id="js_webassert_test_form_wrapper">';
        $form['#suffix'] = '</div>';
        // Button to test for the waitForButton() assertion.
        $form['test_button'] = [
            '#type' => 'submit',
            '#value' => $this->t('Add button'),
            '#button_type' => 'primary',
            '#ajax' => [
                'callback' => 'Drupal\\js_webassert_test\\Form\\JsWebAssertTestForm::addButton',
                'progress' => [
                    'type' => 'throbber',
                    'message' => NULL,
                ],
                'wrapper' => 'js_webassert_test_form_wrapper',
            ],
        ];
        // Button to test for the waitForLink() assertion.
        $form['test_link'] = [
            '#type' => 'submit',
            '#value' => $this->t('Add link'),
            '#button_type' => 'primary',
            '#ajax' => [
                'callback' => 'Drupal\\js_webassert_test\\Form\\JsWebAssertTestForm::addLink',
                'progress' => [
                    'type' => 'throbber',
                    'message' => NULL,
                ],
                'wrapper' => 'js_webassert_test_form_wrapper',
            ],
        ];
        // Button to test for the waitForField() assertion.
        $form['test_field'] = [
            '#type' => 'submit',
            '#value' => $this->t('Add field'),
            '#button_type' => 'primary',
            '#ajax' => [
                'callback' => 'Drupal\\js_webassert_test\\Form\\JsWebAssertTestForm::addField',
                'progress' => [
                    'type' => 'throbber',
                    'message' => NULL,
                ],
                'wrapper' => 'js_webassert_test_form_wrapper',
            ],
        ];
        // Button to test for the waitForId() assertion.
        $form['test_id'] = [
            '#type' => 'submit',
            '#value' => $this->t('Add ID'),
            '#button_type' => 'primary',
            '#ajax' => [
                'callback' => 'Drupal\\js_webassert_test\\Form\\JsWebAssertTestForm::addId',
                'progress' => [
                    'type' => 'throbber',
                    'message' => NULL,
                ],
                'wrapper' => 'js_webassert_test_form_wrapper',
            ],
        ];
        // Button to test the assertWaitOnAjaxRequest() assertion.
        $form['test_wait_for_element_visible'] = [
            '#type' => 'submit',
            '#value' => $this->t('Test waitForElementVisible'),
            '#button_type' => 'primary',
            '#ajax' => [
                'callback' => 'Drupal\\js_webassert_test\\Form\\JsWebAssertTestForm::addWaitForElementVisible',
                'progress' => [
                    'type' => 'throbber',
                    'message' => NULL,
                ],
                'wrapper' => 'js_webassert_test_form_wrapper',
            ],
        ];
        // Button to test the assertWaitOnAjaxRequest() assertion.
        $form['test_assert_wait_on_ajax_request'] = [
            '#type' => 'submit',
            '#value' => $this->t('Test assertWaitOnAjaxRequest'),
            '#button_type' => 'primary',
            '#ajax' => [
                'callback' => 'Drupal\\js_webassert_test\\Form\\JsWebAssertTestForm::addAssertWaitOnAjaxRequest',
                'progress' => [
                    'type' => 'throbber',
                    'message' => NULL,
                ],
                'wrapper' => 'js_webassert_test_form_wrapper',
            ],
        ];
        // Button to test the assertNoElementAfterWait() assertion, will pass.
        $form['test_assert_no_element_after_wait_pass'] = [
            '#type' => 'submit',
            '#value' => $this->t('Test assertNoElementAfterWait: pass'),
            '#button_type' => 'primary',
            '#attached' => [
                'library' => 'js_webassert_test/no_element_after_wait',
            ],
        ];
        // Button to test the assertNoElementAfterWait() assertion, will fail.
        $form['test_assert_no_element_after_wait_fail'] = [
            '#type' => 'submit',
            '#value' => $this->t('Test assertNoElementAfterWait: fail'),
            '#button_type' => 'primary',
        ];
        return $form;
    }
    
    /**
     * Ajax callback for the "Add button" button.
     */
    public static function addButton(array $form, FormStateInterface $form_state) {
        $form['added_button'] = [
            '#type' => 'submit',
            '#value' => 'Added button',
            '#button_type' => 'primary',
        ];
        return $form;
    }
    
    /**
     * Ajax callback for the "Add link" button.
     */
    public static function addLink(array $form, FormStateInterface $form_state) {
        $form['added_link'] = [
            '#title' => 'Added link',
            '#type' => 'link',
            '#url' => Url::fromRoute('js_webassert_test.js_webassert_test_form'),
        ];
        return $form;
    }
    
    /**
     * Ajax callback for the "Add field" button.
     */
    public static function addField(array $form, FormStateInterface $form_state) {
        $form['added_field'] = [
            '#type' => 'textfield',
            '#title' => 'Added textfield',
            '#name' => 'added_field',
        ];
        return $form;
    }
    
    /**
     * Ajax callback for the "Add ID" button.
     */
    public static function addId(array $form, FormStateInterface $form_state) {
        $form['added_id'] = [
            '#id' => 'js_webassert_test_field_id',
            '#type' => 'submit',
            '#value' => 'Added ID',
            '#button_type' => 'primary',
        ];
        return $form;
    }
    
    /**
     * Ajax callback for the "Test waitForAjax" button.
     */
    public static function addAssertWaitOnAjaxRequest(array $form, FormStateInterface $form_state) {
        // Attach the library necessary for this test.
        $form['#attached']['library'][] = 'js_webassert_test/wait_for_ajax_request';
        $form['test_assert_wait_on_ajax_input'] = [
            '#type' => 'textfield',
            '#name' => 'test_assert_wait_on_ajax_input',
        ];
        return $form;
    }
    
    /**
     * Ajax callback for the "Test waitForElementVisible" button.
     */
    public static function addWaitForElementVisible(array $form, FormStateInterface $form_state) {
        // Attach the library necessary for this test.
        $form['#attached']['library'][] = 'js_webassert_test/wait_for_element';
        $form['element_invisible'] = [
            '#id' => 'js_webassert_test_element_invisible',
            '#type' => 'submit',
            '#value' => 'Added WaitForElementVisible',
            '#button_type' => 'primary',
            '#attributes' => [
                'style' => [
                    'display: none;',
                ],
            ],
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
    }

}