--- /dev/null
+<?php
+
+namespace Drupal\form_test\Form;
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Form constructor to test the #required property without #title.
+ */
+class FormTestValidateRequiredNoTitleForm extends FormBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFormId() {
+ return 'form_test_validate_required_form_no_title';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildForm(array $form, FormStateInterface $form_state) {
+ $form['textfield'] = [
+ '#type' => 'textfield',
+ '#required' => TRUE,
+ ];
+ $form['actions'] = ['#type' => 'actions'];
+ $form['actions']['submit'] = ['#type' => 'submit', '#value' => 'Submit'];
+ return $form;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ drupal_set_message('The form_test_validate_required_form_no_title form was submitted successfully.');
+ }
+
+}