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bzrlib/tests/test_merge.py
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import os
 
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from StringIO import StringIO
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from bzrlib.branch import Branch
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from bzrlib.builtins import merge
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from bzrlib.commit import commit
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from bzrlib.errors import UnrelatedBranches, NoCommits, BzrCommandError
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from bzrlib.merge import transform_tree
 
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from bzrlib.merge import transform_tree, merge_inner
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from bzrlib.osutils import pathjoin
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from bzrlib.revision import common_ancestor
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from bzrlib.tests import TestCaseWithTransport
 
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from bzrlib.trace import (enable_test_log, disable_test_log)
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from bzrlib.workingtree import WorkingTree
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        tree.rename_one(filename, filename2)
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        tree.rename_one('dirname1', 'dirname2')
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        transform_tree(tree, tree.branch.basis_tree())
 
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    def test_ignore_zero_merge_inner(self):
 
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        # Test that merge_inner's ignore zero paramter is effective
 
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        tree_a =self.make_branch_and_tree('a')
 
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        tree_a.commit(message="hello")
 
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        dir_b = tree_a.bzrdir.sprout('b')
 
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        tree_b = dir_b.open_workingtree()
 
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        tree_a.commit(message="hello again")
 
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        log = StringIO()
 
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        merge_inner(tree_b.branch, tree_a, tree_b.basis_tree(), 
 
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                    this_tree=tree_b, ignore_zero=True)
 
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        lines = self._get_log().splitlines(True)[-1]
 
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        self.failUnless('All changes applied successfully.\n' not in lines)
 
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        tree_b.revert([])
 
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        merge_inner(tree_b.branch, tree_a, tree_b.basis_tree(), 
 
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                    this_tree=tree_b, ignore_zero=False)
 
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        lines = self._get_log().splitlines(True)[-1]
 
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        self.failUnless('All changes applied successfully.\n' in lines)