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self.assertEqual([], tree.get_parent_ids())
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"""Tests specific to WorkingTreeFormat3."""
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def test_disk_layout(self):
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tree = self.make_branch_and_tree('.', format='experimental-knit3')
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# inventory = 1 entry for root
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t = control.get_workingtree_transport(None)
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self.assertContainsRe(t.get('inventory').read(),
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'<inventory format="7">\n'