Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_emitter.py: 32%

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"""Targets primarily code in lib/yaml/emitter.py. """ 

27import sys 

28import atheris 

29 

30import io 

31import yaml 

32 

33def TestOneInput(data): 

34 try: 

35 events = list(yaml.parse(io.BytesIO(data))) 

36 except yaml.YAMLError: 

37 return 

38 except RecursionError: 

39 return 

40 try: 

41 output = yaml.emit(events) 

42 except yaml.emitter.EmitterError: 

43 return 

44 except RecursionError: 

45 return 

46 

47 # At this point the output should be good to parse cleanly. 

48 yaml.parse(output) 

49 

50def main(): 

51 atheris.instrument_all() 

52 atheris.Setup(sys.argv, TestOneInput) 

53 atheris.Fuzz() 

54 

55if __name__ == "__main__": 

56 main()