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Viewing changes to bzrlib/selftest/testrevision.py

  • Committer: Aaron Bentley
  • Date: 2005-08-25 22:05:37 UTC
  • mto: (1092.1.42) (1185.3.4)
  • mto: This revision was merged to the branch mainline in revision 1178.
  • Revision ID: abentley@panoramicfeedback.com-20050825220537-3a8e6ffc843ad8ca
Improved intermediate revision tracer
Now, when asked, it always finds the longest lines.
It maximizes the number of revision-history lines and, secondarily, minimizes
the number of non-revision-history lines.

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bzrlib/selftest/testrevision.py
 
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# (C) 2005 Canonical Ltd
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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from bzrlib.selftest import InTempDir
 
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def make_branches():
 
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    from bzrlib.branch import Branch
 
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    from bzrlib.commit import commit
 
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    from bzrlib.revision import validate_revision_id
 
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    import os
 
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    os.mkdir("branch1")
 
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    br1 = Branch("branch1", init=True)
 
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    commit(br1, "Commit one", rev_id="a@u-0-0")
 
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    commit(br1, "Commit two", rev_id="a@u-0-1")
 
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    commit(br1, "Commit three", rev_id="a@u-0-2")
 
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    os.mkdir("branch2")
 
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    br2 = Branch("branch2", init=True)
 
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    br2.update_revisions(br1)
 
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    commit(br2, "Commit four", rev_id="b@u-0-3")
 
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    commit(br2, "Commit five", rev_id="b@u-0-4")
 
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    revisions_2 = br2.revision_history()
 
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    br1.add_pending_merge(revisions_2[4])
 
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    commit(br1, "Commit six", rev_id="a@u-0-3")
 
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    commit(br1, "Commit seven", rev_id="a@u-0-4")
 
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    commit(br2, "Commit eight", rev_id="b@u-0-5")
 
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    br1.add_pending_merge(br2.revision_history()[5])
 
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    commit(br1, "Commit nine", rev_id="a@u-0-5")
 
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    br2.add_pending_merge(br1.revision_history()[4])
 
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    commit(br2, "Commit ten", rev_id="b@u-0-6")
 
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    return br1, br2
 
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class TestIsAncestor(InTempDir):
 
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    """Test checking whether a revision is an ancestor of another revision"""
 
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    def runTest(self):
 
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        from bzrlib.revision import is_ancestor, MultipleRevisionSources
 
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        from bzrlib.errors import NoSuchRevision
 
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        br1, br2 = make_branches()
 
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        revisions = br1.revision_history()
 
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        revisions_2 = br2.revision_history()
 
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        sources = MultipleRevisionSources(br1, br2)
 
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        assert is_ancestor(revisions[0], revisions[0], sources)
 
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        assert is_ancestor(revisions[1], revisions[0], sources)
 
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        assert not is_ancestor(revisions[0], revisions[1], sources)
 
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        assert is_ancestor(revisions_2[3], revisions[0], sources)
 
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        self.assertRaises(NoSuchRevision, is_ancestor, revisions_2[3],
 
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                          revisions[0], br1)        
 
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        assert is_ancestor(revisions[3], revisions_2[4], sources)
 
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        assert is_ancestor(revisions[3], revisions_2[4], br1)
 
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        assert is_ancestor(revisions[3], revisions_2[3], sources)
 
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        assert not is_ancestor(revisions[3], revisions_2[3], br1)
 
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class TestIntermediateRevisions(InTempDir):
 
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    def setUp(self):
 
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        from bzrlib.commit import commit
 
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        self.br1, self.br2 = make_branches()
 
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        commit(self.br2, "Commit eleven", rev_id="b@u-0-7")
 
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        commit(self.br2, "Commit twelve", rev_id="b@u-0-8")
 
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        commit(self.br2, "Commit thirtteen", rev_id="b@u-0-9")
 
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        self.br1.add_pending_merge(self.br2.revision_history()[6])
 
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        commit(self.br1, "Commit fourtten", rev_id="a@u-0-6")
 
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        self.br2.add_pending_merge(self.br1.revision_history()[6])
 
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        commit(self.br2, "Commit fifteen", rev_id="b@u-0-10")
 
81
 
 
82
        from bzrlib.revision import MultipleRevisionSources
 
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        self.sources = MultipleRevisionSources(self.br1, self.br2)
 
84
 
 
85
    def intervene(self, ancestor, revision, revision_history=None):
 
86
        from bzrlib.revision import get_intervening_revisions
 
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        return get_intervening_revisions(ancestor,revision, self.sources, 
 
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                                         revision_history)
 
89
 
 
90
    def runTest(self):
 
91
        """Find intermediate revisions, without requiring history"""
 
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        from bzrlib.errors import NotAncestor, NoSuchRevision
 
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        assert len(self.intervene('a@u-0-0', 'a@u-0-0')) == 0
 
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        self.assertEqual(self.intervene('a@u-0-0', 'a@u-0-1'), ['a@u-0-1'])
 
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        self.assertEqual(self.intervene('a@u-0-0', 'a@u-0-2'), 
 
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                         ['a@u-0-1', 'a@u-0-2'])
 
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        self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-3'), 
 
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                         ['a@u-0-1', 'a@u-0-2', 'b@u-0-3'])
 
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        self.assertEqual(self.intervene('b@u-0-3', 'a@u-0-3'), 
 
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                         ['b@u-0-4', 'a@u-0-3'])
 
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        self.assertEqual(self.intervene('a@u-0-2', 'a@u-0-3', 
 
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                                        self.br1.revision_history()), 
 
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                         ['a@u-0-3'])
 
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        self.assertEqual(self.intervene('a@u-0-0', 'a@u-0-5', 
 
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                                        self.br1.revision_history()), 
 
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                         ['a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4', 
 
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                          'a@u-0-5'])
 
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        self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-6', 
 
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                         self.br1.revision_history()), 
 
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                         ['a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4', 
 
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                          'b@u-0-6'])
 
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        self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-5'), 
 
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                         ['a@u-0-1', 'a@u-0-2', 'b@u-0-3', 'b@u-0-4', 
 
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                          'b@u-0-5'])
 
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        self.assertEqual(self.intervene('b@u-0-3', 'b@u-0-6', 
 
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                         self.br2.revision_history()), 
 
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                         ['b@u-0-4', 'b@u-0-5', 'b@u-0-6'])
 
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        self.assertEqual(self.intervene('b@u-0-6', 'b@u-0-10'), 
 
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                         ['b@u-0-7', 'b@u-0-8', 'b@u-0-9', 'b@u-0-10'])
 
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        self.assertEqual(self.intervene('b@u-0-6', 'b@u-0-10', 
 
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                                        self.br2.revision_history()), 
 
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                         ['b@u-0-7', 'b@u-0-8', 'b@u-0-9', 'b@u-0-10'])
 
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        self.assertRaises(NotAncestor, self.intervene, 'b@u-0-10', 'b@u-0-6', 
 
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                          self.br2.revision_history())
 
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        self.assertRaises(NoSuchRevision, self.intervene, 'c@u-0-10', 
 
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                          'b@u-0-6', self.br2.revision_history())
 
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        self.assertRaises(NoSuchRevision, self.intervene, 'b@u-0-10', 
 
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                          'c@u-0-6', self.br2.revision_history())
 
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130
 
 
131
class TestCommonAncestor(InTempDir):
 
132
    """Test checking whether a revision is an ancestor of another revision"""
 
133
    def runTest(self):
 
134
        from bzrlib.revision import find_present_ancestors, common_ancestor
 
135
        from bzrlib.revision import MultipleRevisionSources
 
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        br1, br2 = make_branches()
 
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        revisions = br1.revision_history()
 
138
        revisions_2 = br2.revision_history()
 
139
        sources = MultipleRevisionSources(br1, br2)
 
140
 
 
141
        expected_ancestors_list = {revisions[3]:(0, 0), 
 
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                                   revisions[2]:(1, 1),
 
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                                   revisions_2[4]:(2, 1), 
 
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                                   revisions[1]:(3, 2),
 
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                                   revisions_2[3]:(4, 2),
 
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                                   revisions[0]:(5, 3) }
 
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        ancestors_list = find_present_ancestors(revisions[3], sources)
 
148
        assert len(expected_ancestors_list) == len(ancestors_list)
 
149
        for key, value in expected_ancestors_list.iteritems():
 
150
            self.assertEqual(ancestors_list[key], value, 
 
151
                              "key %r, %r != %r" % (key, ancestors_list[key],
 
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                                                    value))
 
153
 
 
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        self.assertEqual(common_ancestor(revisions[0], revisions[0], sources),
 
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                          revisions[0])
 
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        self.assertEqual(common_ancestor(revisions[1], revisions[2], sources),
 
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                          revisions[1])
 
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        self.assertEqual(common_ancestor(revisions[1], revisions[1], sources),
 
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                          revisions[1])
 
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        self.assertEqual(common_ancestor(revisions[2], revisions_2[4], sources),
 
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                          revisions[2])
 
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        self.assertEqual(common_ancestor(revisions[3], revisions_2[4], sources),
 
163
                          revisions_2[4])
 
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        self.assertEqual(common_ancestor(revisions[4], revisions_2[5], sources),
 
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                          revisions_2[4])
 
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        self.assertEqual(common_ancestor(revisions[5], revisions_2[6], sources),
 
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                          revisions[4])
 
168
        self.assertEqual(common_ancestor(revisions_2[6], revisions[5], sources),
 
169
                          revisions_2[5])
 
170
 
 
171
TEST_CLASSES = [
 
172
    TestIsAncestor,
 
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    TestCommonAncestor,
 
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    TestIntermediateRevisions,
 
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    ]