Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_metadata.py: 56%

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 

28 

29from distlib import DistlibException 

30from distlib.compat import StringIO 

31from distlib.metadata import (LegacyMetadata, Metadata) 

32 

33 

34def TestOneInput(data): 

35 fdp = atheris.FuzzedDataProvider(data) 

36 try: 

37 metadata = LegacyMetadata() 

38 metadata.read_file(StringIO(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))) 

39 except ValueError: 

40 # ValueErrors are raised varies places, e.g. 

41 # https://github.com/pypa/distlib/blob/05375908c1b2d6b0e74bdeb574569d3609db9f56/distlib/version.py#L106 

42 pass 

43 except SyntaxError: 

44 pass 

45 

46 try: 

47 metadata = Metadata(fileobj=StringIO(fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024)))) 

48 except ValueError: 

49 # ValueErrors are raised varies places, e.g. 

50 # https://github.com/pypa/distlib/blob/05375908c1b2d6b0e74bdeb574569d3609db9f56/distlib/version.py#L106 

51 pass 

52 except SyntaxError: 

53 pass 

54 except DistlibException: 

55 pass 

56 

57 

58def main(): 

59 atheris.instrument_all() 

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

61 atheris.Fuzz() 

62 

63 

64if __name__ == "__main__": 

65 main()