Mercurial > genshi > mirror
view examples/trac/trac/versioncontrol/tests/diff.py @ 39:93b4dcbafd7b trunk
Copy Trac to main branch.
author | cmlenz |
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date | Mon, 03 Jul 2006 18:53:27 +0000 |
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from trac.versioncontrol import diff import unittest class DiffTestCase(unittest.TestCase): def test_get_change_extent(self): self.assertEqual((3, 0), diff._get_change_extent('xxx', 'xxx')) self.assertEqual((0, 0), diff._get_change_extent('', 'xxx')) self.assertEqual((0, 0), diff._get_change_extent('xxx', '')) self.assertEqual((0, 0), diff._get_change_extent('xxx', 'yyy')) self.assertEqual((1, -1), diff._get_change_extent('xxx', 'xyx')) self.assertEqual((1, -1), diff._get_change_extent('xxx', 'xyyyx')) self.assertEqual((1, 0), diff._get_change_extent('xy', 'xzz')) self.assertEqual((1, -1), diff._get_change_extent('xyx', 'xzzx')) self.assertEqual((1, -1), diff._get_change_extent('xzzx', 'xyx')) def test_insert_blank_line(self): opcodes = diff._get_opcodes(['A', 'B'], ['A', 'B', ''], ignore_blank_lines=0) self.assertEqual(('equal', 0, 2, 0, 2), opcodes.next()) self.assertEqual(('insert', 2, 2, 2, 3), opcodes.next()) opcodes = diff._get_opcodes(['A', 'B'], ['A', 'B', ''], ignore_blank_lines=1) self.assertEqual(('equal', 0, 2, 0, 3), opcodes.next()) opcodes = diff._get_opcodes(['A'], ['A', 'B', ''], ignore_blank_lines=1) self.assertEqual(('equal', 0, 1, 0, 1), opcodes.next()) self.assertEqual(('insert', 1, 1, 1, 3), opcodes.next()) def test_delete_blank_line(self): opcodes = diff._get_opcodes(['A', 'B', ''], ['A', 'B'], ignore_blank_lines=0) self.assertEqual(('equal', 0, 2, 0, 2), opcodes.next()) self.assertEqual(('delete', 2, 3, 2, 2), opcodes.next()) opcodes = diff._get_opcodes(['A', 'B', ''], ['A', 'B'], ignore_blank_lines=1) self.assertEqual(('equal', 0, 3, 0, 2), opcodes.next()) opcodes = diff._get_opcodes(['A', 'B', ''], ['A'], ignore_blank_lines=1) self.assertEqual(('equal', 0, 1, 0, 1), opcodes.next()) self.assertEqual(('delete', 1, 3, 1, 1), opcodes.next()) def test_space_changes(self): opcodes = diff._get_opcodes(['A', 'B b'], ['A', 'B b'], ignore_space_changes=0) self.assertEqual(('equal', 0, 1, 0, 1), opcodes.next()) self.assertEqual(('replace', 1, 2, 1, 2), opcodes.next()) opcodes = diff._get_opcodes(['A', 'B b'], ['A', 'B b'], ignore_space_changes=1) self.assertEqual(('equal', 0, 2, 0, 2), opcodes.next()) def test_case_changes(self): opcodes = diff._get_opcodes(['A', 'B b'], ['A', 'B B'], ignore_case=0) self.assertEqual(('equal', 0, 1, 0, 1), opcodes.next()) self.assertEqual(('replace', 1, 2, 1, 2), opcodes.next()) opcodes = diff._get_opcodes(['A', 'B b'], ['A', 'B B'], ignore_case=1) self.assertEqual(('equal', 0, 2, 0, 2), opcodes.next()) def test_space_and_case_changes(self): opcodes = diff._get_opcodes(['A', 'B b'], ['A', 'B B'], ignore_case=0, ignore_space_changes=0) self.assertEqual(('equal', 0, 1, 0, 1), opcodes.next()) self.assertEqual(('replace', 1, 2, 1, 2), opcodes.next()) opcodes = diff._get_opcodes(['A', 'B b'], ['A', 'B B'], ignore_case=1, ignore_space_changes=1) self.assertEqual(('equal', 0, 2, 0, 2), opcodes.next()) def test_grouped_opcodes_context1(self): opcodes = diff._get_opcodes(['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'], ['A', 'B', 'C', 'd', 'e', 'f', 'G', 'H']) groups = diff._group_opcodes(opcodes, n=1) group = groups.next() self.assertEqual(('equal', 2, 3, 2, 3), group[0]) self.assertEqual(('replace', 3, 6, 3, 6), group[1]) self.assertEqual(('equal', 6, 7, 6, 7), group[2]) def test_grouped_opcodes_insert_blank_line_at_top(self): """ Regression test for #2090. Make sure that the equal block following an insert at the top of a file is correct. """ opcodes = diff._get_opcodes(['B', 'C', 'D', 'E', 'F', 'G'], ['A', 'B', 'C', 'D', 'E', 'F', 'G']) groups = diff._group_opcodes(opcodes, n=3) self.assertEqual([('insert', 0, 0, 0, 1), ('equal', 0, 3, 1, 4)], groups.next()) def suite(): return unittest.makeSuite(DiffTestCase, 'test') if __name__ == '__main__': unittest.main()