adds tests

packages/go_router_builder/lib/src/route_config.dart

@@ -280,7 +280,7 @@ routes: [${_children.map((RouteConfig e) => '${e._routeDefinition()},').join()}]
     return '''
 GoRouteData.\$route(
       path: ${escapeDartString(_path)},
-      name: ${_name == null ? null : escapeDartString(_name!)},
+      ${_name != null ? 'name: ${escapeDartString(_name!)},' : ''}
       factory: $_extensionName._fromState,
       $routesBit
 )

packages/go_router_builder/test/builder_test.dart

@@ -37,4 +37,5 @@ const Set<String> _expectedAnnotatedTests = <String>{
   'NullableDefaultValueRoute',
   'IterableWithEnumRoute',
   'IterableDefaultValueRoute',
+  'NamedRoute',
 };

packages/go_router_builder/test/test_inputs/_go_router_builder_test_input.dart

@@ -302,3 +302,28 @@ class IterableDefaultValueRoute extends GoRouteData {
   IterableDefaultValueRoute({this.param = const <int>[0]});
   final Iterable<int> param;
 }
+
+@ShouldGenerate(r'''
+GoRoute get $namedRoute => GoRouteData.$route(
+      path: '/named-route',
+      name: 'namedRoute',
+      factory: $NamedRouteExtension._fromState,
+    );
+
+extension $NamedRouteExtension on NamedRoute {
+  static NamedRoute _fromState(GoRouterState state) => NamedRoute();
+
+  String get location => GoRouteData.$location(
+        '/named-route',
+      );
+
+  void go(BuildContext context) => context.go(location);
+
+  void push(BuildContext context) => context.push(location);
+
+  void pushReplacement(BuildContext context) =>
+      context.pushReplacement(location);
+}
+''')
+@TypedGoRoute<NamedRoute>(path: '/named-route', name: 'namedRoute')
+class NamedRoute extends GoRouteData {}