I have discovered that these seem to be the two main ways of testing for exceptions:
Assert.Throws(()=>MethodThatThrows()); [ExpectedExc
The first allows you to test for more than one exception, with multiple calls:
Assert.Throws(()=>MethodThatThrows()); Assert.Throws(()=>Method2ThatThrows());
The second only allows you to test for one exception per test function.