Get data from Json Response using C#

Question

I have the following code in a Unit Test:

        SomeModel test = new SomeModel();
        test.TestField = "Some Content Here"; //Where TestField is a String attribute of the SomeModel class

        var expected = Json(test, JsonRequestBehavior.AllowGet);

When I run

System.Diagnostics.Debug.WriteLine("Expected " + expected.Data.ToString());

I get this in the output: Expected Fake.Path.SomeModel

When I run the test through the debugger I am able to see the data:

How can I access the data through my unit test? I want to be able to verify that the data in it is correct through automated tests.

I am using Visual Studio 2012 Professional

Thanks!

The default ToString is just to show the type name, which is what you are seeing. If you want the message, it's going to be expected.Data.TestField — Matt Burland
– Matt Burland, Commented Jul 28, 2015 at 21:05
I get an error when I do that: 'Object' does not contain reference for 'TestField' — dan.m.kumar
– dan.m.kumar, Commented Jul 28, 2015 at 21:08

Matt Burland · Accepted Answer · 2015-07-28 21:20:27Z

1

The default implementation (in Object) of ToString is to display the type name. That's what you are seeing when you do this:

expected.Data.ToString()

If you want to get at the actual TestField, and Data is defined as object, then you need:

((SomeModel)expected.Data).TestField

answered Jul 28, 2015 at 21:20

Matt Burland

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Comments

Samuel Davidson · Accepted Answer · 2015-07-28 21:08:22Z

0

I would download Newtonsoft's JSON library from NuGet if you haven't already. This is the code I used on one of my applications which used that libraries JObject class:

var parsed = JObject.Parse(jsonString);
JToken token;
if (parsed.TryGetValue("Key", out token))
{
    var value = token.ToString();
    ... //Do stuff
}

answered Jul 28, 2015 at 21:08

Samuel Davidson

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3 Comments

dan.m.kumar Over a year ago

JObject.Parse only takes string arguments. Is there a way to parse the JsonResult?

Samuel Davidson Over a year ago

myJsonResult.ToString() or maybe myJsonResult.Data.ToString() whichever returns the JSON formatted string containing the data.

dan.m.kumar Over a year ago

See Matt's response in the original question. His solution worked perfectly for me!

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