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SubUnit
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:date: 2005-12-20 18:36:49
:category: `Unit Testing in Python <index.html>`_

SubUnit's [`link <http://www.robertcollins.net/unittest/subunit/>`__ ] purpose appears to be to manage testing
via subprocesses.



Consequently, it can
run external tests not in Python, it can fork a subprocess to manage the Fixture
in an isolated process.



Adding this
subprocess execution context extends the
**Test Runner**  implementation of the built-in
unittest
module.  This can be useful in contexts where the Fixture includes
**Singletons** 
or connection pools or other per-process design features.