diff options
Diffstat (limited to 'Lib/unittest/case.py')
| -rw-r--r-- | Lib/unittest/case.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py index 01c5a7b..3f2f37d 100644 --- a/Lib/unittest/case.py +++ b/Lib/unittest/case.py @@ -263,6 +263,10 @@ 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 @@ -1048,6 +1052,10 @@ class TestCase(object): self.assertIsInstance(second, str, '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: |