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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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os.mkdir("branch1")
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br1 = Branch("branch1", init=True)
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commit(br1, "Commit one")
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commit(br1, "Commit two")
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commit(br1, "Commit three")
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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")
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commit(br2, "Commit five")
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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")
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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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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 TestCommonAncestor(InTempDir):
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"""Test checking whether a revision is an ancestor of another revision"""
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from bzrlib.revision import find_present_ancestors, common_ancestor
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from bzrlib.revision import MultipleRevisionSources
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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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expected_ancestors_list = {revisions[3]:(0, 0),
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revisions_2[4]:(2, 1),
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revisions_2[3]:(4, 2),
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ancestors_list = find_present_ancestors(revisions[3], sources)
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assert len(expected_ancestors_list) == len(ancestors_list)
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for key, value in expected_ancestors_list.iteritems():
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self.assertEqual(ancestors_list[key], value,
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"key %r, %r != %r" % (key, ancestors_list[key],
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self.assertEqual(common_ancestor(revisions[0], revisions[0], sources),
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self.assertEqual(common_ancestor(revisions[1], revisions[2], sources),
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self.assertEqual(common_ancestor(revisions[1], revisions[1], sources),
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self.assertEqual(common_ancestor(revisions[2], revisions_2[4], sources),
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self.assertEqual(common_ancestor(revisions[3], revisions_2[4], sources),
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self.assertEqual(common_ancestor(revisions[4], revisions_2[5], sources),
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self.assertEqual(common_ancestor(revisions[5], revisions_2[6], sources),
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self.assertEqual(common_ancestor(revisions_2[6], revisions[5], sources),