Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_serialization_roundtrip.py: 3%

1###### Coverage stub 

2import atexit 

3import coverage 

4cov = coverage.coverage(data_file='.coverage', cover_pylib=True) 

5cov.start() 

6# Register an exist handler that will print coverage 

7def exit_handler(): 

8 cov.stop() 

9 cov.save() 

10atexit.register(exit_handler) 

11####### End of coverage stub 

12#!/usr/bin/python3 

13# Copyright 2023 Google LLC 

14# 

15# Licensed under the Apache License, Version 2.0 (the "License"); 

16# you may not use this file except in compliance with the License. 

17# You may obtain a copy of the License at 

18# 

19# http://www.apache.org/licenses/LICENSE-2.0 

20# 

21# Unless required by applicable law or agreed to in writing, software 

22# distributed under the License is distributed on an "AS IS" BASIS, 

23# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

24# See the License for the specific language governing permissions and 

25# limitations under the License. 

26import sys 

27import atheris 

28import ipykernel 

29from ipykernel.serialize import deserialize_object, serialize_object 

30 

31 

32def ConsumeRandomLengthBufferList(fdp): 

33 """Creates a list of buffers of various lengths""" 

34 buffers = [] 

35 max_range = fdp.ConsumeIntInRange(1, 50) 

36 for _ in range(1, max_range): 

37 buffers.append(fdp.ConsumeBytes(fdp.ConsumeIntInRange(0, 200))) 

38 return buffers 

39 

40 

41def TestOneInput(data): 

42 fdp = atheris.FuzzedDataProvider(data) 

43 

44 try: 

45 deserialized_obj = deserialize_object(ConsumeRandomLengthBufferList(fdp)) 

46 except Exception: 

47 return 

48 

49 # Any deserizlied object should be serializable 

50 serialize_object(deserialized_obj) 

51 

52 

53def main(): 

54 atheris.instrument_all() 

55 atheris.Setup(sys.argv, TestOneInput) 

56 atheris.Fuzz() 

57 

58 

59if __name__ == "__main__": 

60 main()