--- /dev/null
+<?php
+
+namespace Drupal\form_test\Form;
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+
+/**
+ * Form constructor for testing #type 'email' elements.
+ */
+class FormTestEmailForm extends FormBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFormId() {
+ return 'form_test_email';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildForm(array $form, FormStateInterface $form_state) {
+ $form['email'] = [
+ '#type' => 'email',
+ '#title' => 'Email address',
+ '#description' => 'An email address.',
+ ];
+ $form['email_required'] = [
+ '#type' => 'email',
+ '#title' => 'Address',
+ '#required' => TRUE,
+ '#description' => 'A required email address field.',
+ ];
+ $form['submit'] = [
+ '#type' => 'submit',
+ '#value' => 'Submit',
+ ];
+ return $form;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ $form_state->setResponse(new JsonResponse($form_state->getValues()));
+ }
+
+}