def _do_test_parse_tree(self, parse_tree):
dir = os.path.join(os.path.dirname(__file__), 'data', 'trees')
o = Tree.from_file(hex_to_filename(dir, tree_sha))
o._parse_file()
self.assertEquals([('a', 0100644, a_sha), ('b', 0100644, b_sha)],
list(parse_tree(o.as_raw_string())))
