MSTest Assert.AreEqual fails with string array

Question

I'm working up some unit tests and unsure why this particular test is failing.

The test is to assert that a custom view engine looks in the correct place for views.

In my custom view engine is this:

AreaMasterLocationFormats = new[]
{
    "~/Areas/{2}/App/{1}/Views/{0}.cshtml",
    "~/Areas/{2}/App/Shared/Views/{0}.cshtml"
};

And in my test is this:

string[] expected = new[]
{
    "~/Areas/{2}/App/{1}/Views/{0}.cshtml",
    "~/Areas/{2}/App/Shared/Views/{0}.cshtml"
};

CustomRazorViewEngine engine = new CustomRazorViewEngine();

Assert.AreEqual(expected, engine.AreaMasterLocationFormats);

The test fails with the message:

Message: Assert.AreEqual failed. Expected:<System.String[]>. Actual:<System.String[]>.

(s/o's quote format doesn't like the second lt in that...)

I'm unsure why, as when I debug the test all appears well.

Not sure why you deleted your answer (whoever you were), but it was correct... — jleach
– jleach, Commented May 29, 2016 at 17:21
For a moment, I wasn't sure string[] is actually a Collection. — haim770
– haim770, Commented May 29, 2016 at 17:23
@haim770 Apparently, seeing as how the test passes now :) I'll except when my timer's up, thanks. — jleach
– jleach, Commented May 29, 2016 at 17:24

haim770 · Accepted Answer · 2016-05-29 17:19:33Z

6

You need to use CollectionAssert instead:

CollectionAssert.AreEqual(expected, engine.AreaMasterLocationFormats);

See MSDN

answered May 29, 2016 at 17:19

haim770

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