我应该模拟ControllerContext来对我的JsonNetResult数据进行单元测试

Question

I am using the JsonNetResult class from here in my asp.net mvc 4.0 project:

http://james.newtonking.com/archive/2008/10/16/asp-net-mvc-and-json-net.aspx

How can I unit test wether my c# classes are converted correctly to json format?

The Json conversion is executed in the ExecuteResult method which seem to be impossible to

mock according to www.

Some people even say this is too much mock effort just for the json testing.

Some people say why not directly test the JsonConvert.SerializeObject(_data); method.

I would be grateful to hear some professional advises about that topic.

Answer 1

If you want to test if your C# class can be serialized, then try serializing it directly, remember unit testing focuses on testing one particular operation, that link you provided does several things. In order to unit test it you would have to create a method that does most of the work given the current state, rather than using implicit state.

To serialize it directly, just call the contents of if (Data != null) giving it the information you want to give. Note that one piece of information you will need to give it is the stream to write to, since it writes to the Response directly.