Testing exceptions... the best way! - T# Videos

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10/22/2010 8:13:49 AM

Ludovic Dubois
Administrator
Posts: 159

What is "the bests way"? (12:36)

Simple: one line of code to test that the right exception is thrown:
assert thrown <exception>;

Complete: test what ever you want on your exception, or any side effects you expect:
assert thrown <exception> e
{
assert e....;
assert e....;
...
}

Sure: test that stuff that must not change do not change
runtest p.Price = -1;
assert thrown <exception>;
assert p.Price == 0; // Still the same value

Right scope: the exception is thrown in the business code, not in the test, even if the same exception is thrown when preparing or verifying the test (before or after runtest statement).

Be sure your business code thrown the right exception at the right time! Cool

Access source code from our svn server at https://www.prettyobjects.com:7567/svn/public/TSharp/Products/?p=17
<em>edited by Ludovic Dubois on 28/10/2010</em>

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