Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_packaging.py: 49%

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"""Target several modules in the packaging project.""" 

27 

28import sys 

29import atheris 

30from packaging.utils import (canonicalize_version, parse_wheel_filename, 

31 parse_sdist_filename, InvalidSdistFilename, 

32 InvalidWheelFilename) 

33 

34from packaging.specifiers import InvalidSpecifier, Specifier 

35from packaging.version import InvalidVersion 

36 

37 

38def fuzz_utils(data): 

39 """Logic to hit routines in src/packaging/utils.""" 

40 fdp = atheris.FuzzedDataProvider(data) 

41 canonicalize_version( 

42 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024))) 

43 try: 

44 parse_sdist_filename( 

45 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024))) 

46 except InvalidSdistFilename: 

47 pass 

48 

49 try: 

50 parse_wheel_filename( 

51 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024))) 

52 except InvalidWheelFilename: 

53 pass 

54 

55 

56def fuzz_specifier(data): 

57 """Logic to hit routines in src/packaging/specifiers.""" 

58 fdp = atheris.FuzzedDataProvider(data) 

59 try: 

60 spec1 = Specifier( 

61 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024))) 

62 spec2 = Specifier( 

63 fdp.ConsumeUnicodeNoSurrogates(fdp.ConsumeIntInRange(0, 1024))) 

64 except InvalidSpecifier: 

65 return 

66 

67 b1 = spec1 == spec2 

68 b2 = spec1 != spec2 

69 try: 

70 b7 = spec1.contains(fdp.ConsumeUnicodeNoSurrogates(24)) 

71 except InvalidVersion: 

72 pass 

73 

74 

75def TestOneInput(data): 

76 """Fuzzer entrypoint, wrapper around fuzz_* routines.""" 

77 fuzz_utils(data) 

78 fuzz_specifier(data) 

79 

80 

81def main(): 

82 atheris.instrument_all() 

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

84 atheris.Fuzz() 

85 

86 

87if __name__ == "__main__": 

88 main()