[Python-Dev] I need help with IO testuite (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Wed Nov 17 15:44:15 CET 2010

On Wed, 17 Nov 2010 15:31:02 +0100 Jesus Cea <jcea at jcea.es> wrote:

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Hi all. I am modifying IO module for Python 3.2, and I am unable to understand the mechanism used in IO testsuite to test both the C and the Python implementation. In particular I need to test that the implementation passes some parameters to the OS. The module uses "Mock" classes, but I think "Mock" is something else, and I don't see how it interpose between the C/Python code and the OS.

It doesn't interpose between Python and the OS: it mocks the OS. It is, therefore, a mock (!).

Consequently, if you want to test that parameters are passed to the OS, you shouldn't use a mock, but an actual file. There are several tests which already do that, it shouldn't be too hard to write your own.

Regards

Antoine.

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