Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_parse.py: 39%

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 

28 

29import pasta 

30 

31 

32def TestOneInput(data): 

33 fdp = atheris.FuzzedDataProvider(data) 

34 try: 

35 pasta.parse(fdp.ConsumeUnicodeNoSurrogates(8096)) 

36 except ( 

37 SyntaxError, # thrown by ast fast 

38 ValueError, # thrown by ast fast 

39 pasta.base.annotate.AnnotationError, # pasta-thrown error 

40 MemoryError, # For stack overflows 

41 RecursionError # Not interesting 

42 ): 

43 pass 

44 

45 

46def main(): 

47 atheris.instrument_all() 

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

49 atheris.Fuzz() 

50 

51 

52if __name__ == "__main__": 

53 main()