[issue18919] Unify audio modules tests

[Roundup Robot]

Roundup Robot added the comment:

New changeset 164a60cce934 by Serhiy Storchaka in branch '2.7':
Issue #18919: Catch and check warnings in the aifc module tests.
http://hg.python.org/cpython/rev/164a60cce934

New changeset 9eecd00ffc28 by Serhiy Storchaka in branch '3.3':
Issue #18919: Check warnings messages in the aifc module tests.
http://hg.python.org/cpython/rev/9eecd00ffc28

New changeset d168f094d16d by Serhiy Storchaka in branch 'default':
Issue #18919: Check warnings messages in the aifc module tests.
http://hg.python.org/cpython/rev/d168f094d16d

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<http://bugs.python.org/issue18919>
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