本文整理汇总了Python中google.protobuf.unittest_pb2.optional_foreign_message_extension方法的典型用法代码示例。如果您正苦于以下问题：Python unittest_pb2.optional_foreign_message_extension方法的具体用法？Python unittest_pb2.optional_foreign_message_extension怎么用？Python unittest_pb2.optional_foreign_message_extension使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类google.protobuf.unittest_pb2的用法示例。
在下文中一共展示了unittest_pb2.optional_foreign_message_extension方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: testTopLevelExtensionsForOptionalMessage
# 需要导入模块: from google.protobuf import unittest_pb2 [as 别名]
# 或者: from google.protobuf.unittest_pb2 import optional_foreign_message_extension [as 别名]
def testTopLevelExtensionsForOptionalMessage(self):
extendee_proto = unittest_pb2.TestAllExtensions()
extension = unittest_pb2.optional_foreign_message_extension
self.assertTrue(not extendee_proto.HasExtension(extension))
self.assertEqual(0, extendee_proto.Extensions[extension].c)
# As with normal (non-extension) fields, merely reading from the
# thing shouldn't set the "has" bit.
self.assertTrue(not extendee_proto.HasExtension(extension))
extendee_proto.Extensions[extension].c = 23
self.assertEqual(23, extendee_proto.Extensions[extension].c)
self.assertTrue(extendee_proto.HasExtension(extension))
# Save a reference here.
foreign_message = extendee_proto.Extensions[extension]
extendee_proto.ClearExtension(extension)
self.assertTrue(foreign_message is not extendee_proto.Extensions[extension])
# Setting a field on foreign_message now shouldn't set
# any "has" bits on extendee_proto.
foreign_message.c = 42
self.assertEqual(42, foreign_message.c)
self.assertTrue(foreign_message.HasField('c'))
self.assertTrue(not extendee_proto.HasExtension(extension))
# Shouldn't be allowed to do Extensions[extension] = 'a'
self.assertRaises(TypeError, operator.setitem, extendee_proto.Extensions,
extension, 'a')