def testEmptyStructures(self):
structure = [list(), dict(), tuple()]
self.assertTrue(self._coder.can_encode(structure))
encoded = self._coder.encode_structure(structure)
expected = struct_pb2.StructuredValue()
expected.list_value.values.add().list_value.CopyFrom(struct_pb2.ListValue())
expected.list_value.values.add().dict_value.CopyFrom(struct_pb2.DictValue())
expected.list_value.values.add().tuple_value.CopyFrom(
struct_pb2.TupleValue())
self.assertEqual(expected, encoded)
decoded = self._coder.decode_proto(encoded)
self.assertEqual(structure, decoded)
def do_encode(self, list_value, encode_fn):
encoded_list = struct_pb2.StructuredValue()
encoded_list.list_value.CopyFrom(struct_pb2.ListValue())
for element in list_value:
encoded_list.list_value.values.add().CopyFrom(encode_fn(element))
return encoded_list
