mirror of
https://github.com/protocolbuffers/protobuf
synced 2026-08-26 02:23:14 -04:00
fb78c09e16
The main benefit here is enabling unpacking in an expression context whereas previously multiple statements were required. The return/raise API is also more idiomatic to Python than the current one using an out parameter and status return. PiperOrigin-RevId: 731911306
62 lines
1.9 KiB
Python
62 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
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# Protocol Buffers - Google's data interchange format
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# Copyright 2008 Google Inc. All rights reserved.
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#
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file or at
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# https://developers.google.com/open-source/licenses/bsd
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"""Tests proto Any APIs."""
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import unittest
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from google.protobuf import any as proto_any
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from google.protobuf import any_pb2
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from google.protobuf import unittest_pb2
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class AnyTest(unittest.TestCase):
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def test_pack_unpack(self):
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all_types = unittest_pb2.TestAllTypes()
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any_msg = proto_any.pack(all_types)
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all_descriptor = all_types.DESCRIPTOR
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self.assertEqual(
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any_msg.type_url, 'type.googleapis.com/%s' % all_descriptor.full_name
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)
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# Any can be successfully unpacked to the correct message type.
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unpacked_message = unittest_pb2.TestAllTypes()
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self.assertTrue(proto_any.unpack(any_msg, unpacked_message))
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proto_any.unpack_as(any_msg, unittest_pb2.TestAllTypes)
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# Any can't be unpacked to an incorrect message type.
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self.assertFalse(
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proto_any.unpack(any_msg, unittest_pb2.TestAllTypes.NestedMessage())
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)
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with self.assertRaises(TypeError) as catcher:
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proto_any.unpack_as(any_msg, unittest_pb2.TestAllTypes.NestedMessage)
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self.assertIn('Attempted to unpack', catcher.exception.args[0])
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def test_type_name(self):
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all_types = unittest_pb2.TestAllTypes()
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any_msg = proto_any.pack(all_types)
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self.assertEqual(
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proto_any.type_name(any_msg), 'proto2_unittest.TestAllTypes'
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)
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def test_is_type(self):
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all_types = unittest_pb2.TestAllTypes()
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any_msg = proto_any.pack(all_types)
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all_descriptor = all_types.DESCRIPTOR
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self.assertTrue(proto_any.is_type(any_msg, all_descriptor))
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empty_any = any_pb2.Any()
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self.assertFalse(proto_any.is_type(empty_any, all_descriptor))
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if __name__ == '__main__':
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unittest.main()
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