Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_lexers.py: 34%

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 2020 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 

29 

30import sys 

31import pygments 

32from pygments.formatters import * 

33import pygments.lexers 

34import pygments.filters 

35 

36# pygments.LEXERS.values() is a list of tuples like this, with some of then empty: 

37# (textual class name, longname, tuple of aliases, tuple of filename patterns, tuple of mimetypes) 

38LEXERS = [l[2][0] for l in pygments.lexers.LEXERS.values() if l[2]] 

39FORMATTERS = [BBCodeFormatter(), GroffFormatter(), HtmlFormatter(), 

40 IRCFormatter(), LatexFormatter(), NullFormatter(), 

41 PangoMarkupFormatter(), RawTokenFormatter(), RtfFormatter(), 

42 SvgFormatter(), Terminal256Formatter(), TerminalFormatter(), 

43 TerminalTrueColorFormatter()] 

44 

45def TestOneInput(data: bytes) -> int: 

46 if len(data) > (2 << 18): 

47 return 

48 fdp = atheris.FuzzedDataProvider(data) 

49 random_lexer = pygments.lexers.get_lexer_by_name(fdp.PickValueInList(LEXERS)) 

50 random_lexer.add_filter(fdp.PickValueInList(list(pygments.filters.FILTERS.keys()))) 

51 formatter = fdp.PickValueInList(FORMATTERS) 

52 str_data = fdp.ConsumeUnicode(atheris.ALL_REMAINING) 

53 

54 pygments.highlight(str_data, random_lexer, formatter) 

55 return 0 

56 

57 

58atheris.instrument_all() 

59atheris.Setup(sys.argv, TestOneInput) 

60atheris.Fuzz()