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from bzrlib.branch import Branch
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from bzrlib.commit import commit
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from bzrlib.selftest import TestCaseInTempDir
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from bzrlib.merge import merge
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from bzrlib.errors import UnrelatedBranches, NoCommits
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from bzrlib.revision import common_ancestor
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from bzrlib.fetch import fetch
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class TestMerge(TestCaseInTempDir):
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"""Test appending more than one revision"""
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def test_pending(self):
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br = Branch.initialize(".")
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self.assertEquals(len(br.pending_merges()), 0)
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merge(['.', -1], [None, None])
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self.assertEquals(len(br.pending_merges()), 0)
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def test_nocommits(self):
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br2 = Branch.initialize('branch2')
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self.assertRaises(NoCommits, merge, ['branch2', -1],
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def test_unrelated(self):
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br2 = self.test_nocommits()
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self.assertRaises(UnrelatedBranches, merge, ['branch2', -1],
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def test_pending_with_null(self):
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"""When base is forced to revno 0, pending_merges is set"""
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br2 = self.test_unrelated()
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br1 = Branch.open('.')
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fetch(from_branch=br2, to_branch=br1)
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# merge all of branch 2 into branch 1 even though they
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merge(['branch2', -1], ['branch2', 0])
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self.assertEquals(len(br1.pending_merges()), 1)
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def test_two_roots(self):
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"""Merge base is sane when two unrelated branches are merged"""
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br1, br2 = self.test_pending_with_null()
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last = br1.last_revision()
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self.assertEquals(common_ancestor(last, last, br1), last)