def testPositiveInfinity(self, message_module):
    if message_module is unittest_pb2:
      golden_data = (b'\x5D\x00\x00\x80\x7F'
                     b'\x61\x00\x00\x00\x00\x00\x00\xF0\x7F'
                     b'\xCD\x02\x00\x00\x80\x7F'
                     b'\xD1\x02\x00\x00\x00\x00\x00\x00\xF0\x7F')
    else:
      golden_data = (b'\x5D\x00\x00\x80\x7F'
                     b'\x61\x00\x00\x00\x00\x00\x00\xF0\x7F'
                     b'\xCA\x02\x04\x00\x00\x80\x7F'
                     b'\xD2\x02\x08\x00\x00\x00\x00\x00\x00\xF0\x7F')

    golden_message = message_module.TestAllTypes()
    golden_message.ParseFromString(golden_data)
    self.assertTrue(IsPosInf(golden_message.optional_float))
    self.assertTrue(IsPosInf(golden_message.optional_double))
    self.assertTrue(IsPosInf(golden_message.repeated_float[0]))
    self.assertTrue(IsPosInf(golden_message.repeated_double[0]))
    self.assertEqual(golden_data, golden_message.SerializeToString())