message_test.py 文件源码

def testOneofWhichOneof(self, message_module):
    m = message_module.TestAllTypes()
    self.assertIs(None, m.WhichOneof('oneof_field'))
    if message_module is unittest_pb2:
      self.assertFalse(m.HasField('oneof_field'))

    m.oneof_uint32 = 11
    self.assertEqual('oneof_uint32', m.WhichOneof('oneof_field'))
    if message_module is unittest_pb2:
      self.assertTrue(m.HasField('oneof_field'))

    m.oneof_bytes = b'bb'
    self.assertEqual('oneof_bytes', m.WhichOneof('oneof_field'))

    m.ClearField('oneof_bytes')
    self.assertIs(None, m.WhichOneof('oneof_field'))
    if message_module is unittest_pb2:
      self.assertFalse(m.HasField('oneof_field'))