Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_html_parse.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 

14# Copyright 2022 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 

28import atheris 

29import sys 

30from test_utils import is_expected_error 

31 

32with atheris.instrument_imports(): 

33 from lxml import etree 

34 

35 

36def TestOneInput(data): 

37 try: 

38 root = etree.HTML(data) 

39 etree.tostring(root) 

40 except (etree.LxmlError, TypeError, ValueError) as e: 

41 expected_error_message_content = [ 

42 "C14N", 

43 "serialisation", 

44 "cannot be serialized", 

45 "unicode must not", 

46 ] 

47 if isinstance(e, etree.LxmlError) or ( 

48 isinstance(e, (TypeError, ValueError)) and 

49 is_expected_error(expected_error_message_content, e)): 

50 # Known exception raised by the source code are not interesting. 

51 return -1 # Reject so the input will not be added to the corpus. 

52 else: 

53 # Unexpected exceptions might be a bug in the source or in our test. 

54 raise e # Alert a human to take a closer look at what caused this. 

55 

56 

57def main(): 

58 atheris.Setup(sys.argv, TestOneInput) 

59 atheris.Fuzz() 

60 

61 

62if __name__ == "__main__": 

63 main()