Mercurial > hg
view tests/test-simplemerge.py @ 35998:dce43aaaf209
lfs: allow a pointer to be extracted from a context that removes the file
This is needed to let 'set:lfs()' and '{lfs_files}' work normally on removed
files.
Yuya suggested returning a null pointer for removed files, instead of the
pointer from the parent. The first attempt at this was to return None for a non
LFS file, and a (pointer, ctx) tuple to hold the pointer and context (or parent
pointer and context for a removed file). But this complicated the callers, even
the ones that didn't care about removed files.
Instead, let's use {} to represent a removed pointer. This has the added
convenience of being a useful representation in the template language, and only
affects the callers that care about removed files (and only slightly). Since
pointers are explicitly serialized with a call to a member function, there is no
danger of writing these to disk.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sat, 27 Jan 2018 18:56:24 -0500 |
parents | 68c43a416585 |
children | f0b6fbea00cf |
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# Copyright (C) 2004, 2005 Canonical Ltd # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see <http://www.gnu.org/licenses/>. from __future__ import absolute_import import unittest from mercurial import ( error, simplemerge, util, ) TestCase = unittest.TestCase # bzr compatible interface, for the tests class Merge3(simplemerge.Merge3Text): """3-way merge of texts. Given BASE, OTHER, THIS, tries to produce a combined text incorporating the changes from both BASE->OTHER and BASE->THIS. All three will typically be sequences of lines.""" def __init__(self, base, a, b): basetext = '\n'.join([i.strip('\n') for i in base] + ['']) atext = '\n'.join([i.strip('\n') for i in a] + ['']) btext = '\n'.join([i.strip('\n') for i in b] + ['']) if util.binary(basetext) or util.binary(atext) or util.binary(btext): raise error.Abort("don't know how to merge binary files") simplemerge.Merge3Text.__init__(self, basetext, atext, btext, base, a, b) CantReprocessAndShowBase = simplemerge.CantReprocessAndShowBase def split_lines(t): return util.stringio(t).readlines() ############################################################ # test case data from the gnu diffutils manual # common base TZU = split_lines(""" The Nameless is the origin of Heaven and Earth; The named is the mother of all things. Therefore let there always be non-being, so we may see their subtlety, And let there always be being, so we may see their outcome. The two are the same, But after they are produced, they have different names. They both may be called deep and profound. Deeper and more profound, The door of all subtleties! """) LAO = split_lines(""" The Way that can be told of is not the eternal Way; The name that can be named is not the eternal name. The Nameless is the origin of Heaven and Earth; The Named is the mother of all things. Therefore let there always be non-being, so we may see their subtlety, And let there always be being, so we may see their outcome. The two are the same, But after they are produced, they have different names. """) TAO = split_lines(""" The Way that can be told of is not the eternal Way; The name that can be named is not the eternal name. The Nameless is the origin of Heaven and Earth; The named is the mother of all things. Therefore let there always be non-being, so we may see their subtlety, And let there always be being, so we may see their result. The two are the same, But after they are produced, they have different names. -- The Way of Lao-Tzu, tr. Wing-tsit Chan """) MERGED_RESULT = split_lines("""\ The Way that can be told of is not the eternal Way; The name that can be named is not the eternal name. The Nameless is the origin of Heaven and Earth; The Named is the mother of all things. Therefore let there always be non-being, so we may see their subtlety, And let there always be being, so we may see their result. The two are the same, But after they are produced, they have different names. <<<<<<< LAO ======= -- The Way of Lao-Tzu, tr. Wing-tsit Chan >>>>>>> TAO """) class TestMerge3(TestCase): def log(self, msg): pass def test_no_changes(self): """No conflicts because nothing changed""" m3 = Merge3(['aaa', 'bbb'], ['aaa', 'bbb'], ['aaa', 'bbb']) self.assertEquals(m3.find_unconflicted(), [(0, 2)]) self.assertEquals(list(m3.find_sync_regions()), [(0, 2, 0, 2, 0, 2), (2, 2, 2, 2, 2, 2)]) self.assertEquals(list(m3.merge_regions()), [('unchanged', 0, 2)]) self.assertEquals(list(m3.merge_groups()), [('unchanged', ['aaa', 'bbb'])]) def test_front_insert(self): m3 = Merge3(['zz'], ['aaa', 'bbb', 'zz'], ['zz']) # todo: should use a sentinel at end as from get_matching_blocks # to match without zz self.assertEquals(list(m3.find_sync_regions()), [(0, 1, 2, 3, 0, 1), (1, 1, 3, 3, 1, 1)]) self.assertEquals(list(m3.merge_regions()), [('a', 0, 2), ('unchanged', 0, 1)]) self.assertEquals(list(m3.merge_groups()), [('a', ['aaa', 'bbb']), ('unchanged', ['zz'])]) def test_null_insert(self): m3 = Merge3([], ['aaa', 'bbb'], []) # todo: should use a sentinel at end as from get_matching_blocks # to match without zz self.assertEquals(list(m3.find_sync_regions()), [(0, 0, 2, 2, 0, 0)]) self.assertEquals(list(m3.merge_regions()), [('a', 0, 2)]) self.assertEquals(list(m3.merge_lines()), ['aaa', 'bbb']) def test_no_conflicts(self): """No conflicts because only one side changed""" m3 = Merge3(['aaa', 'bbb'], ['aaa', '111', 'bbb'], ['aaa', 'bbb']) self.assertEquals(m3.find_unconflicted(), [(0, 1), (1, 2)]) self.assertEquals(list(m3.find_sync_regions()), [(0, 1, 0, 1, 0, 1), (1, 2, 2, 3, 1, 2), (2, 2, 3, 3, 2, 2)]) self.assertEquals(list(m3.merge_regions()), [('unchanged', 0, 1), ('a', 1, 2), ('unchanged', 1, 2)]) def test_append_a(self): m3 = Merge3(['aaa\n', 'bbb\n'], ['aaa\n', 'bbb\n', '222\n'], ['aaa\n', 'bbb\n']) self.assertEquals(''.join(m3.merge_lines()), 'aaa\nbbb\n222\n') def test_append_b(self): m3 = Merge3(['aaa\n', 'bbb\n'], ['aaa\n', 'bbb\n'], ['aaa\n', 'bbb\n', '222\n']) self.assertEquals(''.join(m3.merge_lines()), 'aaa\nbbb\n222\n') def test_append_agreement(self): m3 = Merge3(['aaa\n', 'bbb\n'], ['aaa\n', 'bbb\n', '222\n'], ['aaa\n', 'bbb\n', '222\n']) self.assertEquals(''.join(m3.merge_lines()), 'aaa\nbbb\n222\n') def test_append_clash(self): m3 = Merge3(['aaa\n', 'bbb\n'], ['aaa\n', 'bbb\n', '222\n'], ['aaa\n', 'bbb\n', '333\n']) ml = m3.merge_lines(name_a='a', name_b='b', start_marker='<<', mid_marker='--', end_marker='>>') self.assertEquals(''.join(ml), 'aaa\n' 'bbb\n' '<< a\n' '222\n' '--\n' '333\n' '>> b\n' ) def test_insert_agreement(self): m3 = Merge3(['aaa\n', 'bbb\n'], ['aaa\n', '222\n', 'bbb\n'], ['aaa\n', '222\n', 'bbb\n']) ml = m3.merge_lines(name_a='a', name_b='b', start_marker='<<', mid_marker='--', end_marker='>>') self.assertEquals(''.join(ml), 'aaa\n222\nbbb\n') def test_insert_clash(self): """Both try to insert lines in the same place.""" m3 = Merge3(['aaa\n', 'bbb\n'], ['aaa\n', '111\n', 'bbb\n'], ['aaa\n', '222\n', 'bbb\n']) self.assertEquals(m3.find_unconflicted(), [(0, 1), (1, 2)]) self.assertEquals(list(m3.find_sync_regions()), [(0, 1, 0, 1, 0, 1), (1, 2, 2, 3, 2, 3), (2, 2, 3, 3, 3, 3)]) self.assertEquals(list(m3.merge_regions()), [('unchanged', 0, 1), ('conflict', 1, 1, 1, 2, 1, 2), ('unchanged', 1, 2)]) self.assertEquals(list(m3.merge_groups()), [('unchanged', ['aaa\n']), ('conflict', [], ['111\n'], ['222\n']), ('unchanged', ['bbb\n']), ]) ml = m3.merge_lines(name_a='a', name_b='b', start_marker='<<', mid_marker='--', end_marker='>>') self.assertEquals(''.join(ml), '''aaa << a 111 -- 222 >> b bbb ''') def test_replace_clash(self): """Both try to insert lines in the same place.""" m3 = Merge3(['aaa', '000', 'bbb'], ['aaa', '111', 'bbb'], ['aaa', '222', 'bbb']) self.assertEquals(m3.find_unconflicted(), [(0, 1), (2, 3)]) self.assertEquals(list(m3.find_sync_regions()), [(0, 1, 0, 1, 0, 1), (2, 3, 2, 3, 2, 3), (3, 3, 3, 3, 3, 3)]) def test_replace_multi(self): """Replacement with regions of different size.""" m3 = Merge3(['aaa', '000', '000', 'bbb'], ['aaa', '111', '111', '111', 'bbb'], ['aaa', '222', '222', '222', '222', 'bbb']) self.assertEquals(m3.find_unconflicted(), [(0, 1), (3, 4)]) self.assertEquals(list(m3.find_sync_regions()), [(0, 1, 0, 1, 0, 1), (3, 4, 4, 5, 5, 6), (4, 4, 5, 5, 6, 6)]) def test_merge_poem(self): """Test case from diff3 manual""" m3 = Merge3(TZU, LAO, TAO) ml = list(m3.merge_lines('LAO', 'TAO')) self.log('merge result:') self.log(''.join(ml)) self.assertEquals(ml, MERGED_RESULT) def test_binary(self): with self.assertRaises(error.Abort): Merge3(['\x00'], ['a'], ['b']) def test_dos_text(self): base_text = 'a\r\n' this_text = 'b\r\n' other_text = 'c\r\n' m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), this_text.splitlines(True)) m_lines = m3.merge_lines('OTHER', 'THIS') self.assertEqual('<<<<<<< OTHER\r\nc\r\n=======\r\nb\r\n' '>>>>>>> THIS\r\n'.splitlines(True), list(m_lines)) def test_mac_text(self): base_text = 'a\r' this_text = 'b\r' other_text = 'c\r' m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True), this_text.splitlines(True)) m_lines = m3.merge_lines('OTHER', 'THIS') self.assertEqual('<<<<<<< OTHER\rc\r=======\rb\r' '>>>>>>> THIS\r'.splitlines(True), list(m_lines)) if __name__ == '__main__': # hide the timer import time orig = time.time try: time.time = lambda: 0 unittest.main() finally: time.time = orig