Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_textreader_parser.py: 33%

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"""Targets pandas parsers. Both native and python code.""" 

27 

28import os 

29import sys 

30import atheris 

31import io 

32 

33from pandas.errors import ( 

34 EmptyDataError, 

35 ParserError, 

36) 

37 

38from pandas.io.parsers import read_csv 

39 

40 

41def TestOneInput(data): 

42 fdp = atheris.FuzzedDataProvider(data) 

43 

44 try: 

45 read_csv(io.StringIO(fdp.ConsumeUnicodeNoSurrogates(sys.maxsize))) 

46 except ( 

47 EmptyDataError, 

48 ParserError, 

49 ValueError 

50 ): 

51 pass 

52 

53 

54def main(): 

55 atheris.instrument_all() 

56 atheris.Setup(sys.argv, TestOneInput) 

57 atheris.Fuzz() 

58 

59 

60if __name__ == "__main__": 

61 main()