--- /dev/null
+<?php
+
+namespace Drupal\Tests\Core\Controller;
+
+use Drupal\Core\Controller\ControllerResolver;
+use Drupal\Core\Controller\HtmlFormController;
+use Drupal\Core\DependencyInjection\ClassResolverInterface;
+use Drupal\Core\Form\FormBuilderInterface;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * Tests the FormController class.
+ *
+ * @group Controller
+ */
+class FormControllerTest extends UnitTestCase {
+
+ /**
+ * @expectedDeprecation Using the 'controller_resolver' service as the first argument is deprecated, use the 'http_kernel.controller.argument_resolver' instead. If your subclass requires the 'controller_resolver' service add it as an additional argument. See https://www.drupal.org/node/2959408.
+ * @group legacy
+ */
+ public function testControllerResolverDeprecation() {
+ $controller_resolver = $this->getMockBuilder(ControllerResolver::class)->disableOriginalConstructor()->getMock();
+ $form_builder = $this->getMockBuilder(FormBuilderInterface::class)->getMock();
+ $class_resolver = $this->getMockBuilder(ClassResolverInterface::class)->getMock();
+ // Use the HtmlFormController as FormController is abstract.
+ new HtmlFormController($controller_resolver, $form_builder, $class_resolver);
+ }
+
+}