Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_transformer.py: 46%

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 

29 

30import libcst 

31from libcst import parse_module 

32from libcst import PartialParserConfig, ParserSyntaxError 

33from libcst.codemod._context import CodemodContext 

34from libcst.codemod._runner import SkipFile 

35from libcst.codemod.commands.unnecessary_format_string import UnnecessaryFormatString 

36 

37def TestOneInput(data): 

38 fdp = atheris.FuzzedDataProvider(data) 

39 

40 context = CodemodContext() 

41 transform_instance = UnnecessaryFormatString(context) 

42 inp = fdp.ConsumeUnicodeNoSurrogates(sys.maxsize) 

43 try: 

44 input_tree = parse_module( 

45 inp, 

46 config=PartialParserConfig() 

47 ) 

48 try: 

49 output_tree = transform_instance.transform_module(input_tree) 

50 except SkipFile: 

51 pass 

52 except ParserSyntaxError: 

53 pass 

54 except RecursionError: 

55 pass 

56 

57 

58def main(): 

59 atheris.instrument_all() 

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

61 atheris.Fuzz() 

62 

63 

64if __name__ == "__main__": 

65 main()