Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_unpack.py: 46%

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 2022 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. 

26 

27import sys 

28import atheris 

29 

30import io 

31import msgpack 

32 

33 

34def TestOneInput(data): 

35 b = io.BytesIO(data) 

36 r = None 

37 try: 

38 r = msgpack.unpack(b) 

39 except ( 

40 # Catch exceptions as indicated: 

41 # https://github.com/msgpack/msgpack-python/blob/main/msgpack/fallback.py#L110-L121 

42 ValueError, 

43 msgpack.exceptions.FormatError, 

44 msgpack.exceptions.StackError, 

45 msgpack.exceptions.ExtraData 

46 ) as e: 

47 pass 

48 

49 if r is not None: 

50 del r 

51 del b 

52 

53 

54def main(): 

55 atheris.instrument_all() 

56 atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True) 

57 atheris.Fuzz() 

58 

59 

60if __name__ == "__main__": 

61 main()