If we do a
throw new ArgumentException("Cannot do that");
How do you Assert that this ArgumentException happened with Microsoft's Testing Framework?
views:
20answers:
1
+4
A:
You could decorate your unit test with the [ExpectedException] attribute:
[ExpectedException(typeof(ArgumentException))]
[TestMethod]
public void Foo()
{
throw new ArgumentException("foo");
}
Don't ask though about asserting the exception message :-)
Darin Dimitrov
2010-07-13 17:23:09
Thus why Unit tests shouldn't test more than one thing. What if you did a Try / Catch then processed the caught exception with an Assert?
Dr. Zim
2010-07-13 17:31:38
Well, of course you could do that but in this case you will be writing, let me count, 7 more lines of code (probably a bit less if you put the `{` on the same line), and every line of code you write is hiding a potential error and decreasing the readability of the code, so why doing it when you can avoid it :-)
Darin Dimitrov
2010-07-13 17:34:21