Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_load.py: 42%

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 

27import atheris 

28import sys 

29with atheris.instrument_imports(): 

30 import zipfile 

31 import openpyxl 

32 

33def TestInput(data): 

34 temp_file = "test.xlsx" 

35 with open(temp_file, "wb") as fd: 

36 fd.write(data) 

37 

38 try: 

39 wb2 = openpyxl.load_workbook(temp_file) 

40 except (zipfile.BadZipFile ,OSError) as e: 

41 pass 

42 except KeyError as e: 

43 if "There is no item named '[Content_Types].xml' in the archive" in str(e): 

44 #Not related to this fuzzing - possibly caused by known issue of wrong exception type as below 

45 #https://foss.heptapod.net/openpyxl/openpyxl/-/issues/1061 

46 pass 

47 else: 

48 raise(e) 

49 

50def main(): 

51 atheris.Setup(sys.argv, TestInput, enable_python_coverage=True) 

52 atheris.Fuzz() 

53 

54if __name__ == "__main__": 

55 main()