C#•2y ago

How to assert HttpResponseMessage content in unit test [Answered]

Let's say I have 2 variable like this:

var result = await sender.SendAsync(request);
var testResMess = new HttpResponseMessage();
testResMess.Content = new StringContent("\"test message\"");

var result = await sender.SendAsync(request);
var testResMess = new HttpResponseMessage();
testResMess.Content = new StringContent("\"test message\"");

I want to test them in unit test to see if they're equal (which I know they are but I still need to do it in the unit test), so I do something like this:

Assert.AreEqual(testResMess.Content, result.Value);

Assert.AreEqual(testResMess.Content, result.Value);

csharp but the IDE yields The EqualTo constraint always fails as the actual and the expected value cannot be equal So i tried to change it to

Assert.AreEqual(testResMess.Content.ToString(), result.Value);

Assert.AreEqual(testResMess.Content.ToString(), result.Value);

And this time, I got the error:

Expected string length 29 but was 12. Strings differ at index 0.
  Expected: "System.Net.Http.StringContent"
  But was:  "test message"
  -----------^

At this rate, I have no idea is the problem I got and how I can solve them. I'm also new to C# Unit Testing so any help from expert would be really appriciate.

3 Replies

Lisa•2y ago

If you are comparing to a string, what's the point of building a stringcontent object and then comparing to that?

Assert.AreEqual("test message", result.Value);

Assert.AreEqual("test message", result.Value);

Or am I missing some context here?

Lisa•2y ago

Anyway, if you aren't actually building and just need to get the string value. .ToString() won't help you. https://learn.microsoft.com/en-us/dotnet/api/system.net.http.stringcontent?view=net-6.0 And look at the Read methods, those will get ya what you want.

StringContent Class (System.Net.Http)

Provides HTTP content based on a string.

Accord•2y ago

✅ This post has been marked as answered!

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How to assert HttpResponseMessage content in unit test [Answered]