Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_fuse.py: 57%

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 sys 

28import atheris 

29import dask 

30from dask.optimization import ( 

31 fuse, 

32 fuse_linear, 

33) 

34from dask.utils_test import dec, inc, add 

35 

36def get_fuse_dict(data): 

37 fdp = atheris.FuzzedDataProvider(data) 

38 fuse_dict = dict() 

39 number_of_entries = fdp.ConsumeIntInRange(1, 50) 

40 operations = [dec, inc, add] 

41 

42 previous_keys = list() 

43 

44 key="a" 

45 fuse_dict[key] = 1 

46 previous_keys.append(key) 

47 

48 for i in range(number_of_entries): 

49 newk=key+str(i) 

50 val_op = operations[fdp.ConsumeIntInRange(0, 2)] 

51 val_id = previous_keys[fdp.ConsumeIntInRange(0, len(previous_keys)-1)] 

52 

53 fuse_dict[newk] = (val_op, val_id) 

54 previous_keys.append(newk) 

55 return fuse_dict 

56 

57 

58 

59@atheris.instrument_func 

60def TestOneInput(data): 

61 if len(data) < 10: 

62 return 

63 fdp = atheris.FuzzedDataProvider(data) 

64 fuzzed_dict = get_fuse_dict(data) 

65 if len(fuzzed_dict) == 0: 

66 return 

67 

68 if fdp.ConsumeBool(): 

69 fuse( 

70 fuzzed_dict, 

71 rename_keys=fdp.ConsumeBool() 

72 ) 

73 else: 

74 fuse_linear( 

75 fuzzed_dict, 

76 rename_keys=fdp.ConsumeBool() 

77 ) 

78 

79 

80def main(): 

81 atheris.instrument_all() 

82 atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True) 

83 atheris.Fuzz() 

84 

85 

86if __name__ == "__main__": 

87 main()