C#•4y 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\"");

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);

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

The EqualTo constraint always fails as the actual and the expected value cannot be equal

The EqualTo constraint always fails as the actual and the expected value cannot be equal

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);

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"
  -----------^

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

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

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.

Lisa•10/12/22, 9:51 AM

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

Lisa•10/12/22, 9:51 AM

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

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

Lisa•10/12/22, 9:51 AM

Or am I missing some context here?

Lisa•10/12/22, 9:55 AM

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.

AccordAPP•10/19/22, 6:49 AM

This post has been marked as answered!

How to assert HttpResponseMessage content in unit test [Answered]

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