mirror of
https://github.com/python/cpython.git
synced 2024-12-01 11:15:56 +01:00
d2c5b4b549
that behaves as if both lists has an empty string in each of them. Closes bug #979794 (and duplicate bug #980117).
25 lines
792 B
Python
25 lines
792 B
Python
import difflib
|
|
from test import test_support
|
|
import unittest
|
|
import doctest
|
|
|
|
class TestSFbugs(unittest.TestCase):
|
|
|
|
def test_ratio_for_null_seqn(self):
|
|
# Check clearing of SF bug 763023
|
|
s = difflib.SequenceMatcher(None, [], [])
|
|
self.assertEqual(s.ratio(), 1)
|
|
self.assertEqual(s.quick_ratio(), 1)
|
|
self.assertEqual(s.real_quick_ratio(), 1)
|
|
|
|
def test_comparing_empty_lists(self):
|
|
# Check fix for bug #979794
|
|
group_gen = difflib.SequenceMatcher(None, [], []).get_grouped_opcodes()
|
|
self.assertRaises(StopIteration, group_gen.next)
|
|
diff_gen = difflib.unified_diff([], [])
|
|
self.assertRaises(StopIteration, diff_gen.next)
|
|
|
|
Doctests = doctest.DocTestSuite(difflib)
|
|
|
|
test_support.run_unittest(TestSFbugs, Doctests)
|