[issue12428] functools test coverage

[Brian Thorne]

New submission from Brian Thorne <hardbyte at gmail.com>:

The test coverage for functools was down around ~60%, this is a patch to bring that up to ~98%.

Made two changes to the Lib/functools.py file itself:

1) Moved the Python implementation of partial into Lib/functools.py from Lib/test/test_functools.py which gets imported over the same as the Python implementation of cmp_to_key.

2) In order to allow the blocking of _functools, I grouped and moved the import functions from of _functools to the end of the file.

In the test_functools.py file:

3) Added two new tests to TestLRU.

4) Add testing of Python implementation of cmp_to_key. I copied how test_warnings.py tests C and Python implementations of the same function.

5) Made the importing of functools itself far less clear

----------
components: Tests
files: functools.diff
keywords: patch
messages: 139353
nosy: Thorney, ncoghlan, rhettinger
priority: normal
severity: normal
status: open
title: functools test coverage
type: behavior
versions: Python 3.2
Added file: http://bugs.python.org/file22505/functools.diff

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