Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_crosstab.py: 36%

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 pandas crosstab function with fuzzing data to explore edge cases.""" 

27 

28import atheris 

29import sys 

30import pandas as pd 

31import numpy as np 

32 

33 

34def TestOneInput(data): 

35 fdp = atheris.FuzzedDataProvider(data) 

36 

37 try: 

38 num_elements = fdp.ConsumeIntInRange(1, 100) 

39 a = np.array( 

40 [fdp.ConsumeUnicode(fdp.ConsumeIntInRange(1, 100)) for _ in range(num_elements)], 

41 dtype=object 

42 ) 

43 

44 b = np.array( 

45 [fdp.ConsumeUnicode(fdp.ConsumeIntInRange(1, 100)) for _ in range(num_elements)], 

46 dtype=object 

47 ) 

48 

49 pd.crosstab( 

50 a, 

51 b, 

52 rownames=[fdp.ConsumeUnicode(fdp.ConsumeIntInRange(1, 100))], 

53 colnames=[fdp.ConsumeUnicode(fdp.ConsumeIntInRange(1, 100))] 

54 ) 

55 

56 except ( 

57 ValueError # If there is a mismatch in dimensions or inappropriate values are provided. 

58 ): 

59 pass 

60 

61 

62def main(): 

63 atheris.instrument_all() 

64 atheris.Setup(sys.argv, TestOneInput) 

65 atheris.Fuzz() 

66 

67 

68if __name__ == "__main__": 

69 main()