Fix Tests

• Changed how post notifications works in the previous commits. Also changed the type of tags from Map<dynamic, dynamic> to Map<String, dynamic>.

Author: Nightsd01

test/mock_channel.dart

@@ -24,7 +24,7 @@ class OneSignalMockChannelController {
     state = OneSignalState();
   }
 
-  Future<Null> _handleMethod(MethodCall call) async {
+  Future<dynamic> _handleMethod(MethodCall call) async {
     print("Mock method called: ${call.method}");
     switch (call.method) {
       case "OneSignal#init":
@@ -59,10 +59,10 @@ class OneSignalMockChannelController {
         break;
       case "OneSignal#sendTags":
         this.state.tags = call.arguments;
-        break;
+        return {"success" : true};
       case "OneSignal#deleteTags":
         this.state.deleteTags = call.arguments;
-        break;
+        return {"success" : true};
     }
   }
 }

test/onesignal_test.dart

@@ -55,7 +55,7 @@ void main() {
   });
 
   test ('post notification', () {
-    onesignal.postNotification({"content_available" : true, "include_player_ids" : [testPlayerId]}).then(expectAsync1((v) {
+    onesignal.postNotificationWithJson({"content_available" : true, "include_player_ids" : [testPlayerId]}).then(expectAsync1((v) {
       expect(channelController.state.postNotificationJson['content_available'], true);
       expect(channelController.state.postNotificationJson['include_player_ids'], [testPlayerId]);
     }));