Coverage for /pythoncovmergedfiles/medio/medio/src/icalendar/src/icalendar/fuzzing/ical_fuzzer.py: 38%

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# 

27################################################################################ 

28import base64 

29import contextlib 

30import sys 

31 

32import atheris 

33 

34with atheris.instrument_imports(): 

35 import icalendar.cal.calendar 

36 from icalendar.tests.fuzzed import fuzz_v1_calendar 

37 

38 

39@atheris.instrument_func 

40def TestOneInput(data): 

41 fdp = atheris.FuzzedDataProvider(data) 

42 multiple = fdp.ConsumeBool() 

43 should_walk = fdp.ConsumeBool() 

44 calendar_string = fdp.ConsumeString(fdp.remaining_bytes()) 

45 print("--- start calendar ---") 

46 with contextlib.suppress(UnicodeEncodeError): 

47 # print the ICS file for the test case extraction 

48 # see https://stackoverflow.com/a/27367173/1320237 

49 print( 

50 base64.b64encode(calendar_string.encode("UTF-8", "surrogateescape")).decode( 

51 "ASCII" 

52 ) 

53 ) 

54 

55 fuzz_v1_calendar( 

56 icalendar.cal.calendar.Calendar.from_ical, 

57 calendar_string, 

58 multiple, 

59 should_walk, 

60 ) 

61 print("--- end calendar ---") 

62 

63 

64def main(): 

65 atheris.Setup(sys.argv, TestOneInput) 

66 atheris.Fuzz() 

67 

68 

69if __name__ == "__main__": 

70 main()