Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_roundtrip.py: 44%

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 

30with atheris.instrument_imports(): 

31 import rsa 

32 

33@atheris.instrument_func 

34def TestOneInput(input_bytes): 

35 fdp = atheris.FuzzedDataProvider(input_bytes) 

36 key = fdp.ConsumeIntInRange(16, 9999) 

37 message = fdp.ConsumeBytes(atheris.ALL_REMAINING) 

38 

39 try: 

40 pub, priv = rsa.newkeys(key) 

41 except ValueError: 

42 return 

43 

44 try: 

45 encrypted = rsa.encrypt(message, pub) 

46 except OverflowError: 

47 return 

48 

49 decrypted = rsa.decrypt(encrypted, priv) 

50 assert(decrypted == message) 

51 

52def main(): 

53 atheris.instrument_all() 

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

55 atheris.Fuzz() 

56 

57 

58if __name__ == "__main__": 

59 main()