changing order of unit tests in Python

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You can change the default sorting behavior by setting a custom comparison function. In unittest.py you can find the class variable unittest.TestLoader.sortTestMethodsUsing which is set to the builtin function cmp by default.

For example you can revert the execution order of your tests with doing this:

import unittest
unittest.TestLoader.sortTestMethodsUsing = lambda _, x, y: cmp(y, x)

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