ten small Python programs - comp.lang.python

Message from discussion ten small Python programs
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NNTP-Posting-Date: Sun, 27 May 2007 13:39:29 -0500
Date: Sun, 27 May 2007 12:39:27 -0600
From: Steven Bethard <steven.beth...@gmail.com>
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Subject: Re: ten small Python programs
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Steve Howell wrote:
> --- 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?

That would be fine too. In the real world, I'd put the tests in a 
different module.

STeVe