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#11763: don't use difflib in TestCase.assertMultiLineEqual if the strings are too long.

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Ezio Melotti 2011-04-27 09:45:46 +03:00
parent 5dc6868f25
commit 34b32d62f8
3 changed files with 47 additions and 0 deletions
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8
Lib/unittest/case.py
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@ -169,6 +169,10 @@ class TestCase(object):
maxDiff = 80*8
# If a string is longer than _diffThreshold, use normal comparison instead
# of difflib. See #11763.
_diffThreshold = 2**16
# Attribute used by TestSuite for classSetUp
_classSetupFailed = False
@ -900,6 +904,10 @@ class TestCase(object):
'Second argument is not a string')
if first != second:
# don't use difflib if the strings are too long
if (len(first) > self._diffThreshold or
len(second) > self._diffThreshold):
self._baseAssertEqual(first, second, msg)
firstlines = first.splitlines(True)
secondlines = second.splitlines(True)
if len(firstlines) == 1 and first.strip('\r\n') == first: