--- /dev/null
+<?php
+
+namespace Drupal\router_test\Access;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Routing\Access\AccessInterface;
+use Symfony\Component\Routing\Route;
+
+/**
+ * Defines an access checker similar to DefaultAccessCheck
+ */
+class DefinedTestAccessCheck implements AccessInterface {
+
+ /**
+ * Checks access.
+ *
+ * @param \Symfony\Component\Routing\Route $route
+ * The route to check against.
+ *
+ * @return \Drupal\Core\Access\AccessResultInterface
+ * The access result.
+ */
+ public function access(Route $route) {
+ if ($route->getRequirement('_test_access') === 'TRUE') {
+ return AccessResult::allowed();
+ }
+ elseif ($route->getRequirement('_test_access') === 'FALSE') {
+ return AccessResult::forbidden();
+ }
+ else {
+ return AccessResult::neutral();
+ }
+ }
+
+}