Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_wheel.py: 52%

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. 

26import sys 

27import atheris 

28import zipfile 

29from wheel.cli import unpack, WheelError 

30 

31 

32def TestOneInput(data): 

33 fdp = atheris.FuzzedDataProvider(data) 

34 wheel_path = "/tmp/fuzzwheelfile-1.0-py27-none-any.whl" 

35 with open(wheel_path, "wb") as fuzz_file: 

36 fuzz_file.write(data) 

37 

38 try: 

39 zipfile.ZipFile(wheel_path, "r", zipfile.ZIP_DEFLATED, allowZip64=True) 

40 except: 

41 # To focus on the wheel logic we only want to use zipfiles that 

42 # does not cause zipfile to break. This is because wheel does not 

43 # protect against this: e.g. https://github.com/pypa/wheel/blob/8dfef1355a8f19e773a08630613bd2da6c636c37/src/wheel/wheelfile.py#L47 

44 return 

45 

46 try: 

47 unpack.unpack(wheel_path) 

48 except WheelError: 

49 pass 

50 

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()