Coverage for tests/comm/test_utils.py: 100%

1# The MIT License (MIT) 

2# 

3# Copyright (c) 2021 RSK Labs Ltd 

4# 

5# Permission is hereby granted, free of charge, to any person obtaining a copy of 

6# this software and associated documentation files (the "Software"), to deal in 

7# the Software without restriction, including without limitation the rights to 

8# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 

9# of the Software, and to permit persons to whom the Software is furnished to do 

10# so, subject to the following conditions: 

11# 

12# The above copyright notice and this permission notice shall be included in all 

13# copies or substantial portions of the Software. 

14# 

15# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 

16# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 

17# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 

18# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 

19# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 

20# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 

21# SOFTWARE. 

22 

23from unittest import TestCase 

24from comm.utils import bitwise_and_bytes 

25 

26import logging 

27 

28logging.disable(logging.CRITICAL) 

29 

30 

31class TestBitwiseAndBytes(TestCase): 

32 def test_ones(self): 

33 self.assertEqual( 

34 "1234567890", 

35 bitwise_and_bytes(bytes.fromhex("1234567890"), 

36 bytes.fromhex("ffffffffff")).hex(), 

37 ) 

38 

39 def test_zeroes(self): 

40 self.assertEqual( 

41 "0000000000", 

42 bitwise_and_bytes(bytes.fromhex("1234567890"), 

43 bytes.fromhex("0000000000")).hex(), 

44 ) 

45 

46 def test_mixed(self): 

47 self.assertEqual( 

48 "020406080e", 

49 bitwise_and_bytes(bytes.fromhex("123456789e"), 

50 bytes.fromhex("0f0f0f0f0f")).hex(), 

51 ) 

52 

53 self.assertEqual( 

54 "0004000608", 

55 bitwise_and_bytes(bytes.fromhex("123456779a"), 

56 bytes.fromhex("0406080e0d")).hex(), 

57 )