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

I recently ran into the same thing, and suggest this function for MSTest:

public bool AssertThrows(Action action) where T : Exception
{
    try {action();
}
catch(Exception exception)
{
    if (exception.GetType() == typeof(T))
        return true;
}
    return false;
}

Usage:

Assert.IsTrue(AssertThrows(delegate{ newMyMethod(MyParameter); }));

There is more in Assert that a particular exception has occured (Assert.Throws in MSTest).