Use NUnit Assert.Throws method or ExpectedException attribute?

Question

I have discovered that these seem to be the two main ways of testing for exceptions:

Assert.Throws(()=>MethodThatThrows());

[ExpectedExc         


        

Answer 1

I prefer assert.throws since it allows me to verify and assert other conditions after the exception is thrown.

    [Test]
    [Category("Slow")]
    public void IsValidLogFileName_nullFileName_ThrowsExcpetion()
    {
        var a = new MyTestObject();

        // the exception we expect thrown from the IsValidFileName method
        var ex = Assert.Throws(() => a.IsValidLogFileName(""));

        // now we can test the exception itself
        Assert.That(ex.Message == "Blah");

    }