diff --git a/tests/Routing/RoutingUrlGeneratorTest.php b/tests/Routing/RoutingUrlGeneratorTest.php
index <HASH>..<HASH> 100755
--- a/tests/Routing/RoutingUrlGeneratorTest.php
+++ b/tests/Routing/RoutingUrlGeneratorTest.php
@@ -4,6 +4,7 @@ namespace Illuminate\Tests\Routing;
 
 use Illuminate\Http\Request;
 use Illuminate\Routing\Route;
+use InvalidArgumentException;
 use PHPUnit\Framework\TestCase;
 use Illuminate\Routing\UrlGenerator;
 use Illuminate\Routing\RouteCollection;
@@ -547,6 +548,20 @@ class RoutingUrlGeneratorTest extends TestCase
 
         $this->assertEquals($url->to('/foo'), $url->previous('/foo'));
     }
+
+    /**
+     * @expectedException InvalidArgumentException
+     * @expectedExceptionMessage Route [not_exists_route] not defined.
+     */
+    public function testRouteNotDefinedException()
+    {
+        $url = new UrlGenerator(
+            $routes = new RouteCollection,
+            $request = Request::create('http://www.foo.com/')
+        );
+
+        $url->route('not_exists_route');
+    }
 }
 
 class RoutableInterfaceStub implements UrlRoutable
[<I>] add test for `Route [$routeName] not defined.` exception (#<I>)

- add test for `Route [$routeName] not defined.` exception since in <URL>