How do I use Assert.Throws to assert the type of the exception?

Question

How do I use Assert.Throws to assert the type of the exception and the actual message wording?

Something like this:

Assert.Throws

        

Answer 1

Since I'm disturbed by the verbosity of some of the new NUnit patterns, I use something like this to create code that is cleaner for me personally:

public void AssertBusinessRuleException(TestDelegate code, string expectedMessage)
{
    var ex = Assert.Throws(code);
    Assert.AreEqual(ex.Message, expectedMessage);
}

public void AssertException(TestDelegate code, string expectedMessage) where T:Exception
{
    var ex = Assert.Throws(code);
    Assert.AreEqual(ex.Message, expectedMessage);
}

The usage is then:

AssertBusinessRuleException(() => user.MakeUserActive(), "Actual exception message");