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bzrlib/tests/test_branchbuilder.py
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                              (u'dir', 'dir-id', 'directory'),
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                              (u'dir/a', 'a-id', 'file')], rev_tree)
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    def test_rename_out_of_unversioned_subdir(self):
 
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        builder = self.build_a_rev()
 
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        builder.build_snapshot('B-id', None,
 
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            [('add', ('dir', 'dir-id', 'directory', None)),
 
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             ('rename', ('a', 'dir/a'))])
 
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        builder.build_snapshot('C-id', None,
 
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            [('rename', ('dir/a', 'a')),
 
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             ('unversion', 'dir-id')])
 
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        rev_tree = builder.get_branch().repository.revision_tree('C-id')
 
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        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
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                              (u'a', 'a-id', 'file')], rev_tree)
 
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    def test_set_parent(self):
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        builder = self.build_a_rev()
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        builder.start_series()
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        self.addCleanup(b.unlock)
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        self.assertEqual(('ghost',),
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            b.repository.get_graph().get_parent_map(['tip'])['tip'])
 
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    def test_unversion_root_add_new_root(self):
 
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        builder = BranchBuilder(self.get_transport().clone('foo'))
 
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        builder.start_series()
 
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        builder.build_snapshot('rev-1', None,
 
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            [('add', ('', 'TREE_ROOT', 'directory', ''))])
 
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        builder.build_snapshot('rev-2', None,
 
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            [('unversion', 'TREE_ROOT'),
 
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             ('add', ('', 'my-root', 'directory', ''))])
 
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        builder.finish_series()
 
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        rev_tree = builder.get_branch().repository.revision_tree('rev-2')
 
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        self.assertTreeShape([(u'', 'my-root', 'directory')], rev_tree)
 
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    def test_empty_flush(self):
 
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        """A flush with no actions before it is a no-op."""
 
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        builder = BranchBuilder(self.get_transport().clone('foo'))
 
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        builder.start_series()
 
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        builder.build_snapshot('rev-1', None,
 
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            [('add', ('', 'TREE_ROOT', 'directory', ''))])
 
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        builder.build_snapshot('rev-2', None, [('flush', None)])
 
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        builder.finish_series()
 
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        rev_tree = builder.get_branch().repository.revision_tree('rev-2')
 
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        self.assertTreeShape([(u'', 'TREE_ROOT', 'directory')], rev_tree)
 
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    def test_kind_change(self):
 
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        """It's possible to change the kind of an entry in a single snapshot
 
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        with a bit of help from the 'flush' action.
 
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        """
 
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        builder = BranchBuilder(self.get_transport().clone('foo'))
 
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        builder.start_series()
 
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        builder.build_snapshot('A-id', None,
 
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            [('add', (u'', 'a-root-id', 'directory', None)),
 
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             ('add', (u'a', 'a-id', 'file', 'content\n'))])
 
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        builder.build_snapshot('B-id', None,
 
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            [('unversion', 'a-id'),
 
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             ('flush', None),
 
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             ('add', (u'a', 'a-id', 'directory', None))])
 
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        builder.finish_series()
 
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        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
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        self.assertTreeShape(
 
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            [(u'', 'a-root-id', 'directory'), (u'a', 'a-id', 'directory')],
 
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            rev_tree)
 
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    def test_pivot_root(self):
 
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        """It's possible (albeit awkward) to move an existing dir to the root
 
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        in a single snapshot by using unversion then flush then add.
 
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        """
 
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        builder = BranchBuilder(self.get_transport().clone('foo'))
 
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        builder.start_series()
 
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        builder.build_snapshot('A-id', None,
 
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            [('add', (u'', 'orig-root', 'directory', None)),
 
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             ('add', (u'dir', 'dir-id', 'directory', None))])
 
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        builder.build_snapshot('B-id', None,
 
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            [('unversion', 'orig-root'),  # implicitly unversions all children
 
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             ('flush', None),
 
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             ('add', (u'', 'dir-id', 'directory', None))])
 
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        builder.finish_series()
 
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        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
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        self.assertTreeShape([(u'', 'dir-id', 'directory')], rev_tree)
 
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