--- /dev/null
+<?php
+
+/**
+ * @file
+ * Functions in the global namespace for \Drupal\Tests\Core\Form\FormTestBase.
+ */
+
+/**
+ * Creates a test form.
+ *
+ * @return array
+ * The form array
+ */
+function test_form_id() {
+ $form['test'] = [
+ '#type' => 'textfield',
+ '#title' => 'Test',
+ ];
+ $form['options'] = [
+ '#type' => 'radios',
+ '#options' => [
+ 'foo' => 'foo',
+ 'bar' => 'bar',
+ ],
+ ];
+ $form['value'] = [
+ '#type' => 'value',
+ '#value' => 'bananas',
+ ];
+ $form['actions'] = [
+ '#type' => 'actions',
+ ];
+ $form['actions']['submit'] = [
+ '#type' => 'submit',
+ '#value' => 'Submit',
+ ];
+ return $form;
+}