[issue15323] Provide target name in output message when Mock.assert_called_once_with fails

[Roundup Robot]

Roundup Robot added the comment:

New changeset 70d43fedb2d7 by Michael Foord in branch 'default':
Closes issue 15323. Improve failure message of Mock.assert_called_once_with
http://hg.python.org/cpython/rev/70d43fedb2d7

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nosy: +python-dev
resolution:  -> fixed
stage:  -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15323>
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