Coverage for /pythoncovmergedfiles/medio/medio/src/fuzz_uploader.py: 60%

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 io 

30 

31# All code is instrumented by calling atheris.instrument_all below 

32from google.resumable_media import _upload 

33 

34def test_simple(data): 

35 upload = _upload.SimpleUpload("localhost:8008/index.html") 

36 upload._prepare_request(data, None) 

37 

38def test_multipart(data): 

39 fdp = atheris.FuzzedDataProvider(data) 

40 headers = {"spin": "doctors"} 

41 upload = _upload.MultipartUpload( 

42 "localhost:8008/index.html", 

43 headers=headers, 

44 checksum="md5" 

45 ) 

46 try: 

47 upload._prepare_request( 

48 fdp.ConsumeBytes(200), 

49 {}, 

50 fdp.ConsumeString(200) 

51 ) 

52 except UnicodeEncodeError: 

53 pass 

54 

55def _upload_in_flight(data, headers=None, checksum=None): 

56 upload = _upload.ResumableUpload( 

57 "localhost:8008://heyo", 

58 1024 * 1024, 

59 headers=headers, 

60 checksum=checksum 

61 ) 

62 upload._stream = io.BytesIO(data) 

63 upload._content_type = "text/plain" 

64 upload._total_bytes = len(data) 

65 upload._resumable_url = "localhost:8009/test.invalid?upload_id=not-none" 

66 return upload 

67 

68 

69def test_checksum(data): 

70 fdp = atheris.FuzzedDataProvider(data) 

71 for cs in ["md5", "crc32"]: 

72 upload = _upload_in_flight(fdp.ConsumeBytes(200), checksum=cs) 

73 try: 

74 start_byte, payload, _ = _upload.get_next_chunk( 

75 upload._stream, 

76 fdp.ConsumeIntInRange(1, 250), 

77 fdp.ConsumeIntInRange(1, 250) 

78 ) 

79 except ValueError: 

80 pass 

81 

82 

83def TestOneInput(data): 

84 test_simple(data) 

85 test_multipart(data) 

86 test_checksum(data) 

87 

88def main(): 

89 atheris.instrument_all() 

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

91 atheris.Fuzz() 

92 

93if __name__ == "__main__": 

94 main()