Coverage for /pythoncovmergedfiles/medio/medio/src/parso_extended_fuzz.py: 62%

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 

28import parso 

29 

30 

31def fuzz_dump(data): 

32 fdp = atheris.FuzzedDataProvider(data) 

33 try: 

34 module = parso.parse(fdp.ConsumeUnicodeNoSurrogates(sys.maxsize)) 

35 if module is not None: 

36 module.dump() 

37 except RecursionError: 

38 # Not interesting 

39 pass 

40 

41 

42def fuzz_errors(data, version): 

43 fdp = atheris.FuzzedDataProvider(data) 

44 try: 

45 grammar = parso.load_grammar(version = version) 

46 module = grammar.parse(fdp.ConsumeUnicodeNoSurrogates(sys.maxsize)) 

47 grammar.iter_errors(module) 

48 except RecursionError: 

49 # Not interesting 

50 pass 

51 

52 

53def TestOneInput(data): 

54 fuzz_dump(data) 

55 fuzz_errors(data, '3.6') 

56 fuzz_errors(data, '3.7') 

57 fuzz_errors(data, '3.8') 

58 fuzz_errors(data, '3.9') 

59 fuzz_errors(data, '3.10') 

60 fuzz_errors(data, '3.11') 

61 fuzz_errors(data, '3.12') 

62 

63 

64def main(): 

65 atheris.instrument_all() 

66 atheris.Setup(sys.argv, TestOneInput) 

67 atheris.Fuzz() 

68 

69 

70if __name__ == "__main__": 

71 main()