Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_config_pyprojecttoml.py: 38%

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. 

26 

27import sys 

28import os 

29import tempfile 

30import atheris 

31 

32with atheris.instrument_imports(): 

33 import tomli 

34 from setuptools.config.pyprojecttoml import (read_configuration) 

35 from setuptools.errors import FileError 

36 

37 

38def TestOneInput(data): 

39 """Fuzzer read_configuration assuming any valid toml file should not 

40 cause exceptions to happen. 

41 """ 

42 fdp = atheris.FuzzedDataProvider(data) 

43 with tempfile.TemporaryDirectory() as temp_dir: 

44 config_path = os.path.join(temp_dir, "pyproject.taml") 

45 with open(config_path, "w") as cf: 

46 cf.write(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(1, 4096))) 

47 

48 try: 

49 config = read_configuration(config_path) 

50 except (tomli.TOMLDecodeError, FileError): 

51 return -1 

52 

53 

54def main(): 

55 atheris.Setup(sys.argv, TestOneInput) 

56 atheris.Fuzz() 

57 

58 

59if __name__ == "__main__": 

60 main()