1#! /usr/bin/python
2# -*- coding: utf-8 -*-
3#
4# Protocol Buffers - Google's data interchange format
5# Copyright 2008 Google Inc.  All rights reserved.
6# https://developers.google.com/protocol-buffers/
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20# this software without specific prior written permission.
21#
22# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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33
34"""Unittest for reflection.py, which tests the generated C++ implementation."""
35
36__author__ = 'jasonh@google.com (Jason Hsueh)'
37
38import os
39os.environ['PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION'] = 'cpp'
40os.environ['PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION'] = '2'
41
42from google.apputils import basetest
43from google.protobuf.internal import api_implementation
44from google.protobuf.internal import more_extensions_dynamic_pb2
45from google.protobuf.internal import more_extensions_pb2
46from google.protobuf.internal.reflection_test import *
47
48
49class ReflectionCppTest(basetest.TestCase):
50  def testImplementationSetting(self):
51    self.assertEqual('cpp', api_implementation.Type())
52    self.assertEqual(2, api_implementation.Version())
53
54  def testExtensionOfGeneratedTypeInDynamicFile(self):
55    """Tests that a file built dynamically can extend a generated C++ type.
56
57    The C++ implementation uses a DescriptorPool that has the generated
58    DescriptorPool as an underlay. Typically, a type can only find
59    extensions in its own pool. With the python C-extension, the generated C++
60    extendee may be available, but not the extension. This tests that the
61    C-extension implements the correct special handling to make such extensions
62    available.
63    """
64    pb1 = more_extensions_pb2.ExtendedMessage()
65    # Test that basic accessors work.
66    self.assertFalse(
67        pb1.HasExtension(more_extensions_dynamic_pb2.dynamic_int32_extension))
68    self.assertFalse(
69        pb1.HasExtension(more_extensions_dynamic_pb2.dynamic_message_extension))
70    pb1.Extensions[more_extensions_dynamic_pb2.dynamic_int32_extension] = 17
71    pb1.Extensions[more_extensions_dynamic_pb2.dynamic_message_extension].a = 24
72    self.assertTrue(
73        pb1.HasExtension(more_extensions_dynamic_pb2.dynamic_int32_extension))
74    self.assertTrue(
75        pb1.HasExtension(more_extensions_dynamic_pb2.dynamic_message_extension))
76
77    # Now serialize the data and parse to a new message.
78    pb2 = more_extensions_pb2.ExtendedMessage()
79    pb2.MergeFromString(pb1.SerializeToString())
80
81    self.assertTrue(
82        pb2.HasExtension(more_extensions_dynamic_pb2.dynamic_int32_extension))
83    self.assertTrue(
84        pb2.HasExtension(more_extensions_dynamic_pb2.dynamic_message_extension))
85    self.assertEqual(
86        17, pb2.Extensions[more_extensions_dynamic_pb2.dynamic_int32_extension])
87    self.assertEqual(
88        24,
89        pb2.Extensions[more_extensions_dynamic_pb2.dynamic_message_extension].a)
90
91
92
93if __name__ == '__main__':
94  basetest.main()
95