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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from bzrlib.tests import TestCaseInTempDir, TestCase
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from bzrlib.selftest import InTempDir, TestBase
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from bzrlib.merge3 import Merge3
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from bzrlib.errors import CantReprocessAndShowBase, BinaryFile
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from cStringIO import StringIO
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return StringIO(t).readlines()
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############################################################
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# test case data from the gnu diffutils manual
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TZU = split_lines(""" The Nameless is the origin of Heaven and Earth;
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The named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their outcome.
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But after they are produced,
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they have different names.
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They both may be called deep and profound.
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Deeper and more profound,
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The door of all subtleties!
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LAO = split_lines(""" The Way that can be told of is not the eternal Way;
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The name that can be named is not the eternal name.
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The Nameless is the origin of Heaven and Earth;
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The Named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their outcome.
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But after they are produced,
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they have different names.
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TAO = split_lines(""" The Way that can be told of is not the eternal Way;
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The name that can be named is not the eternal name.
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The Nameless is the origin of Heaven and Earth;
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The named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their result.
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But after they are produced,
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they have different names.
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-- The Way of Lao-Tzu, tr. Wing-tsit Chan
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MERGED_RESULT = split_lines(""" The Way that can be told of is not the eternal Way;
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The name that can be named is not the eternal name.
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The Nameless is the origin of Heaven and Earth;
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The Named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their result.
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But after they are produced,
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they have different names.
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-- The Way of Lao-Tzu, tr. Wing-tsit Chan
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class TestMerge3(TestCase):
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def test_no_changes(self):
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"""No conflicts because nothing changed"""
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class NoChanges(TestBase):
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"""No conflicts because nothing changed"""
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m3 = Merge3(['aaa', 'bbb'],
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(4,4, 5,5, 6,6),])
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def test_merge_poem(self):
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"""Test case from diff3 manual"""
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from cStringIO import StringIO
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return StringIO(t).readlines()
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############################################################
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# test case from the gnu diffutils manual
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TZU = split_lines(""" The Nameless is the origin of Heaven and Earth;
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The named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their outcome.
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The two are the same,
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But after they are produced,
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they have different names.
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They both may be called deep and profound.
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Deeper and more profound,
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The door of all subtleties!
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LAO = split_lines(""" The Way that can be told of is not the eternal Way;
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The name that can be named is not the eternal name.
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The Nameless is the origin of Heaven and Earth;
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The Named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their outcome.
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The two are the same,
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But after they are produced,
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they have different names.
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TAO = split_lines(""" The Way that can be told of is not the eternal Way;
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The name that can be named is not the eternal name.
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The Nameless is the origin of Heaven and Earth;
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The named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their result.
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The two are the same,
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But after they are produced,
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they have different names.
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-- The Way of Lao-Tzu, tr. Wing-tsit Chan
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MERGED_RESULT = split_lines(""" The Way that can be told of is not the eternal Way;
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The name that can be named is not the eternal name.
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The Nameless is the origin of Heaven and Earth;
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The Named is the mother of all things.
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Therefore let there always be non-being,
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so we may see their subtlety,
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And let there always be being,
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so we may see their result.
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The two are the same,
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But after they are produced,
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they have different names.
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-- The Way of Lao-Tzu, tr. Wing-tsit Chan
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class MergePoem(TestBase):
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"""Test case from diff3 manual"""
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m3 = Merge3(TZU, LAO, TAO)
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ml = list(m3.merge_lines('LAO', 'TAO'))
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self.log('merge result:')
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self.log(''.join(ml))
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self.assertEquals(ml, MERGED_RESULT)
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def test_minimal_conflicts(self):
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base_text = ("a\n" * 20).splitlines(True)
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this_text = ("a\n"*10+"b\n" * 10).splitlines(True)
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other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True)
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m3 = Merge3(base_text, other_text, this_text)
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m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True)
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merged_text = "".join(list(m_lines))
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optimal_text = "a\n" * 10 + "<<<<<<< OTHER\nc\n=======\n>>>>>>> THIS"\
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+ "\n" + 8* "b\n" + "<<<<<<< OTHER\nc\n=======\nb\nb\n>>>>>>>"\
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self.assertEqualDiff(merged_text, optimal_text)
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def test_reprocess_and_base(self):
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"""Reprocessing and showing base breaks correctly"""
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base_text = ("a\n" * 20).splitlines(True)
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this_text = ("a\n"*10+"b\n" * 10).splitlines(True)
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other_text = ("a\n"*10+"c\n"+"b\n" * 8 + "c\n").splitlines(True)
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m3 = Merge3(base_text, other_text, this_text)
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m_lines = m3.merge_lines('OTHER', 'THIS', reprocess=True,
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base_marker='|||||||')
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self.assertRaises(CantReprocessAndShowBase, list, m_lines)
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def test_binary(self):
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self.assertRaises(BinaryFile, Merge3, ['\x00'], ['a'], ['b'])