[issue19912] ntpath.splitunc() is broken and not tested

[Serhiy Storchaka]

New submission from Serhiy Storchaka:

ntpath.splitunc() returns illegal results when path contains redundant slashes.

>>> import ntpath
>>> ntpath.splitunc("\\\\\\conky\\mountpoint\\foo\\bar")
('\\\\\\conky', '\\mountpoint\\foo\\bar')
>>> ntpath.splitunc("///conky/mountpoint/foo/bar")
('///conky', '/mountpoint/foo/bar')
>>> ntpath.splitunc("\\\\conky\\\\mountpoint\\foo\\bar")
('\\\\conky\\', '\\mountpoint\\foo\\bar')

It also affected by a bug from issue19911.

It also emits warnings in wrong place (from stdlib, not from places where it is used).

It has no tests.

Proposed patch fixes these issues.

----------
assignee: serhiy.storchaka
components: Library (Lib), Tests
files: ntpath_splitunc.patch
keywords: patch
messages: 205394
nosy: serhiy.storchaka
priority: normal
severity: normal
stage: patch review
status: open
title: ntpath.splitunc() is broken and not tested
type: behavior
versions: Python 2.7, Python 3.3, Python 3.4
Added file: http://bugs.python.org/file33010/ntpath_splitunc.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19912>
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