[Asunit-users] assertIsNaN

[Darren C. <da...@dc...>]

I finally found time to get back to the project I want to unit test, and
hit a bump when testing for an expected NaN.

I was going to propose extending assertEquals to handle NaN as a special
case but convinced myself that examples like this make that a bad idea:
  assertEquals("should this pass when x==0?", x/1, x/2);

So I wrote assertIsNaN(); I was going to send a patch but it is so short
that I just included it below. It goes somewhere in Assert.as (only
tested on as2 branch).

If you want a proper patch let me know.

Darren



/**
* Asserts that assertion isNaN(); any valid number or any other
* type of object will fail the test.
*/
public static function assertIsNaN(msg:Object, assertion:Object):Void {
 if(arguments.length == 1) addTestResult("", "assertIsNaN", isNaN(msg));
 else addTestResult(String(msg), "assertIsNaN", isNaN(assertion));
}