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Barry Warsaw04f357c2002-07-23 19:04:11 +00001import difflib
2from test import test_support
Neal Norwitze7dfe212003-07-01 14:59:46 +00003import unittest
Raymond Hettinger43d790c2003-07-16 04:34:56 +00004import doctest
Neal Norwitze7dfe212003-07-01 14:59:46 +00005
6class TestSFbugs(unittest.TestCase):
7
8 def test_ratio_for_null_seqn(self):
9 # Check clearing of SF bug 763023
10 s = difflib.SequenceMatcher(None, [], [])
11 self.assertEqual(s.ratio(), 1)
12 self.assertEqual(s.quick_ratio(), 1)
13 self.assertEqual(s.real_quick_ratio(), 1)
14
Raymond Hettinger43d790c2003-07-16 04:34:56 +000015Doctests = doctest.DocTestSuite(difflib)
16
17test_support.run_unittest(TestSFbugs, Doctests)