Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_attrs.py: 58%

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 

14# Copyright 2025 Google LLC 

15# 

16# Licensed under the Apache License, Version 2.0 (the "License"); 

17# you may not use this file except in compliance with the License. 

18# You may obtain a copy of the License at 

19# 

20# http://www.apache.org/licenses/LICENSE-2.0 

21# 

22# Unless required by applicable law or agreed to in writing, software 

23# distributed under the License is distributed on an "AS IS" BASIS, 

24# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

25# See the License for the specific language governing permissions and 

26# limitations under the License. 

27# 

28########################################################################## 

29import sys 

30import atheris 

31 

32import attrs 

33from string import ascii_letters 

34 

35def consumeIdentifier(fdp): 

36 return fdp.ConsumeUnicode(8) 

37 

38@atheris.instrument_func 

39def TestOneInput(data): 

40 fdp = atheris.FuzzedDataProvider(data) 

41 clsname = consumeIdentifier(fdp) 

42 attrcount = fdp.ConsumeIntInRange(0, 12) 

43 attrnames = [consumeIdentifier(fdp) 

44 for _ in range(attrcount)] 

45 attrvalues = [None] * attrcount 

46 

47 # Create class from attrs.make_class 

48 try: 

49 C0 = attrs.make_class(clsname, attrnames) 

50 except Exception as e: 

51 if any(not name.isidentifier() for name in [clsname] + attrnames): 

52 return 

53 raise 

54 c0 = C0(**{k: v for k, v in zip(attrnames, attrvalues)}) 

55 d0 = attrs.asdict(c0) 

56 c0_p = C0(**d0) 

57 assert c0 == c0_p 

58 

59 # Create class from attrs.define 

60 C1 = attrs.define(type(clsname, (), {f: attrs.field() for f in attrnames})) 

61 c1 = C1(**{k: v for k, v in zip(attrnames, attrvalues)}) 

62 d1 = attrs.asdict(c1) 

63 c1_p = C1(**d1) 

64 assert c1 == c1_p 

65 

66 

67def main(): 

68 atheris.instrument_all() 

69 atheris.Setup(sys.argv, TestOneInput) 

70 atheris.Fuzz() 

71 

72 

73if __name__ == "__main__": 

74 main()