def test_artifact_data_dict_to_numbered_dict():
artifact = Artifact()
artifact.data_dict = OrderedDict()
artifact.data_dict['a'] = 10
artifact.data_dict['b'] = 20
numbered_dict = artifact.convert_data_dict_to_numbered_dict()
assert numbered_dict.keys()[0] == '00000:a'
assert numbered_dict.keys()[1] == '00001:b'
assert numbered_dict['00000:a'] == 10
assert numbered_dict['00001:b'] == 20
