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ten small Python programs
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Date: Sun, 27 May 2007 11:10:52 -0700 (PDT)
From: Steve Howell <showel...@yahoo.com>
Subject: Re: ten small Python programs
To: Steven Bethard <steven.beth...@gmail.com>, python-l...@python.org
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--- Steven Bethard <steven.beth...@gmail.com> wrote:
>
> I think I would rewrite the current unit-testing
> example to use the
> standard library unittest module::
>
> # Let's write reusable code, and unit test it.
> def add_money(amounts):
> # do arithmetic in pennies so as not to
> accumulate float errors
> pennies = sum([round(int(amount * 100)) for
> amount in amounts])
> return float(pennies / 100.0)
> import unittest
> class TestAddMoney(unittest.TestCase):
> def test_float_errors(self):
> self.failUnlessEqual(add_money([0.13,
> 0.02]), 0.15)
> self.failUnlessEqual(add_money([100.01,
> 99.99]), 200)
> self.failUnlessEqual(add_money([0,
> -13.00, 13.00]), 0)
> if __name__ == '__main__':
> unittest.main()
>
Just a minor quibble, but wouldn't you want the import
and test class to only get executed in the ___main__
context?
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