Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_parser.py: 2%

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 atheris 

28import sys 

29import IPython 

30 

31with atheris.instrument_imports(): 

32 from google.cloud.bigquery.magics.line_arg_parser.lexer import Lexer 

33 from google.cloud.bigquery.magics.line_arg_parser.parser import Parser 

34 from google.cloud.bigquery.magics.line_arg_parser.parser import ParseError 

35 from google.cloud.bigquery.magics.line_arg_parser.parser import QueryParamsParseError 

36 

37def TestOneInput(data): 

38 fdp = atheris.FuzzedDataProvider(data) 

39 s1 = fdp.ConsumeString(sys.maxsize) 

40 

41 tokens = list(Lexer(s1)) 

42 if len(tokens) == 0: 

43 return 

44 

45 lexer = Lexer(s1) 

46 parser = Parser(lexer) 

47 try: 

48 parser.input_line() 

49 except ParseError: 

50 pass 

51 

52 lexer = Lexer(s1) 

53 parser = Parser(lexer) 

54 try: 

55 parser.collection_items() 

56 except QueryParamsParseError: 

57 pass 

58 

59 lexer = Lexer(s1) 

60 parser = Parser(lexer) 

61 try: 

62 parser.dict_items() 

63 except QueryParamsParseError: 

64 pass 

65 

66def main(): 

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

68 atheris.Fuzz() 

69 

70if __name__ == "__main__": 

71 main()