Added seeCurrentActionIs function

Author: TavoNiievez

documentation.md

@@ -948,6 +948,19 @@ $I->seeCookie('PHPSESSID');
  * `param array` $params
 
 
+### seeCurrentActionIs
+ 
+Checks that current page matches action
+
+``` php
+<?php
+$I->seeCurrentActionIs('PostController::index');
+$I->seeCurrentActionIs('HomeController');
+```
+
+ * `param string` $action
+
+
 ### seeCurrentRouteIs
 
 Checks that current url matches route.

src/Codeception/Module/Symfony.php

@@ -1032,4 +1032,41 @@ public function dontSeeAuthentication($remembered = true)
             'There is an user authenticated'
         );
     }
+
+    /**
+     * Checks that current page matches action
+     *
+     * ``` php
+     * <?php
+     * $I->seeCurrentActionIs('PostController::index');
+     * $I->seeCurrentActionIs('HomeController');
+     * ```
+     *
+     * @param string $action
+     */
+    public function seeCurrentActionIs($action)
+    {
+        $container = $this->_getContainer();
+
+        if (!$container->has('router')) {
+            $this->fail("Symfony container doesn't have 'router' service");
+            return;
+        }
+
+        $router = $this->grabService('router');
+
+        $routes = $router->getRouteCollection()->getIterator();
+
+        foreach ($routes as $route) {
+            $controller = basename($route->getDefault('_controller'));
+            if ($controller === $action) {
+                $request = $this->client->getRequest();
+                $currentAction = basename($request->attributes->get('_controller'));
+
+                $this->assertEquals($currentAction, $action, "Current action is '$currentAction'.");
+                return;
+            }
+        }
+        $this->fail("Action '$action' does not exist");
+    }
 }