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Re: unit testing class hierarchies

Followups directed to: gmane.comp.python.general

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Peter Otten wrote:

> Ulrich Eckhardt wrote:
>> The problem here is that TestBase is not a complete test case (just 
as
>> class Base is not complete), but the unittest framework will still 
try
>> to run it on its own.
How exactly are you invoking the test runner? unittest? nose? You can 
tell the test discoverer which classes you want it to run and which 
ones you don't. For the unittest library, I use my own custom 
load_tests methods:
def load_tests(loader, tests, pattern):
    testcases = [TestD1, TestD2]
    return TestSuite([loader.loadTestsFromTestCase(testcase)
                      for testcase in testcases])
http://docs.python.org/library/unittest.html#load-tests-protocol

>> One way around this is to not derive class
>> TestBase from unittest.
> 
> Another is to remove it from the global namespace with
> 
> del TestBase
Removing the class from namespace may or may not help. Consider a 
scenario where someone decided to be creative with the cls.__bases__ 
attribute.

-- 
Fayaz Yusuf Khan
Cloud architect, Dexetra SS, India
fayaz.yusuf.khan_AT_gmail_DOT_com, fayaz_AT_dexetra_DOT_com
+91-9746-830-823

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unit testing class hierarchies Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-10-02 14:27 +0200
  Re: unit testing class hierarchies Demian Brecht <demianbrecht@gmail.com> - 2012-10-02 07:05 -0700
  Re: unit testing class hierarchies Thomas Bach <thbach@students.uni-mainz.de> - 2012-10-02 16:06 +0200
    Re: unit testing class hierarchies Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-10-02 17:24 +0200
    Re: unit testing class hierarchies Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-10-02 18:54 +0200
      Re: unit testing class hierarchies Peter Otten <__peter__@web.de> - 2012-10-02 19:38 +0200
      Re: unit testing class hierarchies Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-10-02 19:41 +0100
      Re: unit testing class hierarchies Ben Finney <ben+python@benfinney.id.au> - 2012-10-03 08:30 +1000
        Re: unit testing class hierarchies Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-10-03 01:20 +0000
          Re: unit testing class hierarchies Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2012-10-03 10:33 +0100
          Re: unit testing class hierarchies Terry Reedy <tjreedy@udel.edu> - 2012-10-03 16:14 -0400
  Re: unit testing class hierarchies Peter Otten <__peter__@web.de> - 2012-10-02 16:32 +0200
  Re: unit testing class hierarchies Fayaz Yusuf Khan <fayaz@dexetra.com> - 2012-10-02 20:35 +0530
  Re: unit testing class hierarchies Peter Otten <__peter__@web.de> - 2012-10-02 19:40 +0200
    Re: unit testing class hierarchies Roy Smith <roy@panix.com> - 2012-10-02 19:46 -0400

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