Re: QuickCheck properties for IntSet

On Wed, Apr 30, 2008 at 01:35:45PM -0700, David Benbennick wrote:

On Wed, Apr 30, 2008 at 10:34 AM, Ian Lynagh wrote:

...

I believe that a much smaller number of carefully chosen unit tests could test the library just as well

I think that if you remove any of the properties from my patch, I can break the implementation of IntSet in such a way that it still passes all the tests.

I don't mean that any of your QC tests were redundant, what I mean is that QC runs your tests with redundant values.

Anyway, the new QuickCheck properties are just comments, so they don't have any affect on the test suite.

I don't think there is much benefit in having the tests if we aren't going to run them. People making changes to the library will probably forget to check that they pass (or not know that they exist), and the tests will probably bitrot due to changes in other libraries etc. Thanks Ian