--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Kernel\Form;
+
+use Drupal\form_test\FormTestObject;
+use Drupal\KernelTests\ConfigFormTestBase;
+
+/**
+ * Tests building a form from an object.
+ *
+ * @group Form
+ */
+class FormObjectTest extends ConfigFormTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['form_test'];
+
+ protected function setUp() {
+ parent::setUp();
+
+ $this->form = new FormTestObject($this->container->get('config.factory'));
+ $this->values = [
+ 'bananas' => [
+ '#value' => $this->randomString(10),
+ '#config_name' => 'form_test.object',
+ '#config_key' => 'bananas',
+ ],
+ ];
+ }
+
+}