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Diffstat (limited to 'Lib/test/test_difflib.py')
| -rw-r--r-- | Lib/test/test_difflib.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Lib/test/test_difflib.py b/Lib/test/test_difflib.py index 6afd90a..bf6e5b1 100644 --- a/Lib/test/test_difflib.py +++ b/Lib/test/test_difflib.py @@ -272,6 +272,26 @@ class TestSFpatches(unittest.TestCase): self.assertIn('content="text/html; charset=us-ascii"', output) self.assertIn('ımplıcıt', output) +class TestDiffer(unittest.TestCase): + def test_close_matches_aligned(self): + # Of the 4 closely matching pairs, we want 1 to match with 3, + # and 2 with 4, to align with a "top to bottom" mental model. + a = ["cat\n", "dog\n", "close match 1\n", "close match 2\n"] + b = ["close match 3\n", "close match 4\n", "kitten\n", "puppy\n"] + m = difflib.Differ().compare(a, b) + self.assertEqual(list(m), + ['- cat\n', + '- dog\n', + '- close match 1\n', + '? ^\n', + '+ close match 3\n', + '? ^\n', + '- close match 2\n', + '? ^\n', + '+ close match 4\n', + '? ^\n', + '+ kitten\n', + '+ puppy\n']) class TestOutputFormat(unittest.TestCase): def test_tab_delimiter(self): |