Added test case for string escaping
diff --git a/pkgs/shelf_router_generator/test/server/api.dart b/pkgs/shelf_router_generator/test/server/api.dart
index a8247f6..43f9f1e 100644
--- a/pkgs/shelf_router_generator/test/server/api.dart
+++ b/pkgs/shelf_router_generator/test/server/api.dart
@@ -29,5 +29,10 @@
     return Response.ok(word.toUpperCase());
   }
 
+  @Route.get(r'/$string-escape')
+  Response _stringEscapingWorks(Request request) {
+    return Response.ok('Just testing string escaping');
+  }
+
   Router get router => _$ApiRouter(this);
 }