Python/apps/py-cutils: cutils/crcmod/python3/test.py annotate

annotate cutils/crcmod/python3/test.py @ 325:cd458e318553

treesum: break up TreesumWriter in TreesumWriter and a new base class WriterBase. An upcoming TabularTreesumWriter shall use the new base class also.

author	Franz Glasner <fzglas.hg@dom66.de>
date	Wed, 26 Mar 2025 22:47:59 +0100
parents	5c5c0c5a7402
children

rev	line source
180 d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	1 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	2 # Copyright (c) 2010 Raymond L. Buvel
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	3 # Copyright (c) 2010 Craig McQueen
186 5c5c0c5a7402 Sync with latest crcmod2 Franz Glasner <fzglas.hg@dom66.de> parents: 180 diff changeset	4 # Copyright (c) 2025 Franz Glasner
180 d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	5 #
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	6 # Permission is hereby granted, free of charge, to any person obtaining a copy
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	7 # of this software and associated documentation files (the "Software"), to deal
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	8 # in the Software without restriction, including without limitation the rights
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	9 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	10 # copies of the Software, and to permit persons to whom the Software is
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	11 # furnished to do so, subject to the following conditions:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	12 #
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	13 # The above copyright notice and this permission notice shall be included in
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	14 # all copies or substantial portions of the Software.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	15 #
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	19 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	22 # SOFTWARE.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	23 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	24 '''Unit tests for crcmod functionality'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	25
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	26
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	27 import unittest
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	28
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	29 from array import array
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	30 import binascii
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	31
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	32 from .crcmod import mkCrcFun, Crc
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	33 from .crcmod import _usingExtension
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	34 from .predefined import PredefinedCrc
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	35 from .predefined import mkPredefinedCrcFun
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	36 from .predefined import _crc_definitions as _predefined_crc_definitions
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	37
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	38
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	39 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	40 # This polynomial was chosen because it is the product of two irreducible
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	41 # polynomials.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	42 # g8 = (x^7+x+1)*(x+1)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	43 g8 = 0x185
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	44
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	45 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	46 # The following reproduces all of the entries in the Numerical Recipes table.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	47 # This is the standard CCITT polynomial.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	48 g16 = 0x11021
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	49
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	50 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	51 g24 = 0x15D6DCB
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	52
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	53 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	54 # This is the standard AUTODIN-II polynomial which appears to be used in a
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	55 # wide variety of standards and applications.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	56 g32 = 0x104C11DB7
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	57
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	58
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	59 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	60 # I was able to locate a couple of 64-bit polynomials on the web. To make it
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	61 # easier to input the representation, define a function that builds a
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	62 # polynomial from a list of the bits that need to be turned on.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	63
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	64 def polyFromBits(bits):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	65 p = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	66 for n in bits:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	67 p = p \| (1 << n)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	68 return p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	69
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	70 # The following is from the paper "An Improved 64-bit Cyclic Redundancy Check
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	71 # for Protein Sequences" by David T. Jones
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	72
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	73 g64a = polyFromBits([64, 63, 61, 59, 58, 56, 55, 52, 49, 48, 47, 46, 44, 41,
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	74 37, 36, 34, 32, 31, 28, 26, 23, 22, 19, 16, 13, 12, 10, 9, 6, 4,
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	75 3, 0])
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	76
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	77 # The following is from Standard ECMA-182 "Data Interchange on 12,7 mm 48-Track
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	78 # Magnetic Tape Cartridges -DLT1 Format-", December 1992.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	79
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	80 g64b = polyFromBits([64, 62, 57, 55, 54, 53, 52, 47, 46, 45, 40, 39, 38, 37,
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	81 35, 33, 32, 31, 29, 27, 24, 23, 22, 21, 19, 17, 13, 12, 10, 9, 7,
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	82 4, 1, 0])
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	83
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	84 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	85 # This class is used to check the CRC calculations against a direct
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	86 # implementation using polynomial division.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	87
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	88 class poly:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	89 '''Class implementing polynomials over the field of integers mod 2'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	90 def __init__(self,p):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	91 p = int(p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	92 if p < 0: raise ValueError('invalid polynomial')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	93 self.p = p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	94
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	95 def __int__(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	96 return self.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	97
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	98 def __eq__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	99 return self.p == other.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	100
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	101 def __ne__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	102 return self.p != other.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	103
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	104 # To allow sorting of polynomials, use their long integer form for
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	105 # comparison
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	106 def __cmp__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	107 return cmp(self.p, other.p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	108
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	109 def __bool__(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	110 return self.p != 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	111
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	112 def __neg__(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	113 return self # These polynomials are their own inverse under addition
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	114
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	115 def __invert__(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	116 n = max(self.deg() + 1, 1)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	117 x = (1 << n) - 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	118 return poly(self.p ^ x)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	119
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	120 def __add__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	121 return poly(self.p ^ other.p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	122
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	123 def __sub__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	124 return poly(self.p ^ other.p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	125
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	126 def __mul__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	127 a = self.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	128 b = other.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	129 if a == 0 or b == 0: return poly(0)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	130 x = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	131 while b:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	132 if b&1:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	133 x = x ^ a
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	134 a = a<<1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	135 b = b>>1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	136 return poly(x)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	137
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	138 def __divmod__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	139 u = self.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	140 m = self.deg()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	141 v = other.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	142 n = other.deg()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	143 if v == 0: raise ZeroDivisionError('polynomial division by zero')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	144 if n == 0: return (self,poly(0))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	145 if m < n: return (poly(0),self)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	146 k = m-n
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	147 a = 1 << m
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	148 v = v << k
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	149 q = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	150 while k > 0:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	151 if a & u:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	152 u = u ^ v
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	153 q = q \| 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	154 q = q << 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	155 a = a >> 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	156 v = v >> 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	157 k -= 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	158 if a & u:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	159 u = u ^ v
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	160 q = q \| 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	161 return (poly(q),poly(u))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	162
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	163 def __div__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	164 return self.__divmod__(other)[0]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	165
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	166 def __mod__(self,other):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	167 return self.__divmod__(other)[1]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	168
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	169 def __repr__(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	170 return 'poly(0x%XL)' % self.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	171
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	172 def __str__(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	173 p = self.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	174 if p == 0: return '0'
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	175 lst = { 0:[], 1:['1'], 2:['x'], 3:['1','x'] }[p&3]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	176 p = p>>2
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	177 n = 2
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	178 while p:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	179 if p&1: lst.append('x^%d' % n)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	180 p = p>>1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	181 n += 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	182 lst.reverse()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	183 return '+'.join(lst)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	184
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	185 def deg(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	186 '''return the degree of the polynomial'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	187 a = self.p
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	188 if a == 0: return -1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	189 n = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	190 while a >= 0x10000:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	191 n += 16
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	192 a = a >> 16
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	193 a = int(a)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	194 while a > 1:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	195 n += 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	196 a = a >> 1
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	197 return n
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	198
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	199 #-----------------------------------------------------------------------------
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	200 # The following functions compute the CRC using direct polynomial division.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	201 # These functions are checked against the result of the table driven
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	202 # algorithms.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	203
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	204 g8p = poly(g8)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	205 x8p = poly(1<<8)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	206 def crc8p(d):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	207 p = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	208 for i in d:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	209 p = p*256 + i
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	210 p = poly(p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	211 return int(p*x8p%g8p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	212
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	213 g16p = poly(g16)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	214 x16p = poly(1<<16)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	215 def crc16p(d):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	216 p = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	217 for i in d:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	218 p = p*256 + i
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	219 p = poly(p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	220 return int(p*x16p%g16p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	221
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	222 g24p = poly(g24)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	223 x24p = poly(1<<24)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	224 def crc24p(d):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	225 p = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	226 for i in d:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	227 p = p*256 + i
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	228 p = poly(p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	229 return int(p*x24p%g24p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	230
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	231 g32p = poly(g32)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	232 x32p = poly(1<<32)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	233 def crc32p(d):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	234 p = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	235 for i in d:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	236 p = p*256 + i
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	237 p = poly(p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	238 return int(p*x32p%g32p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	239
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	240 g64ap = poly(g64a)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	241 x64p = poly(1<<64)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	242 def crc64ap(d):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	243 p = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	244 for i in d:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	245 p = p*256 + i
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	246 p = poly(p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	247 return int(p*x64p%g64ap)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	248
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	249 g64bp = poly(g64b)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	250 def crc64bp(d):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	251 p = 0
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	252 for i in d:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	253 p = p*256 + i
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	254 p = poly(p)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	255 return int(p*x64p%g64bp)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	256
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	257
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	258 class KnownAnswerTests(unittest.TestCase):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	259 test_messages = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	260 b'T',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	261 b'CatMouse987654321',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	262 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	263
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	264 known_answers = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	265 [ (g8,0,0), (0xFE, 0x9D) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	266 [ (g8,-1,1), (0x4F, 0x9B) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	267 [ (g8,0,1), (0xFE, 0x62) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	268 [ (g16,0,0), (0x1A71, 0xE556) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	269 [ (g16,-1,1), (0x1B26, 0xF56E) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	270 [ (g16,0,1), (0x14A1, 0xC28D) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	271 [ (g24,0,0), (0xBCC49D, 0xC4B507) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	272 [ (g24,-1,1), (0x59BD0E, 0x0AAA37) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	273 [ (g24,0,1), (0xD52B0F, 0x1523AB) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	274 [ (g32,0,0), (0x6B93DDDB, 0x12DCA0F4) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	275 [ (g32,0xFFFFFFFF,1), (0x41FB859F, 0xF7B400A7) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	276 [ (g32,0,1), (0x6C0695ED, 0xC1A40EE5) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	277 [ (g32,0,1,0xFFFFFFFF), (0xBE047A60, 0x084BFF58) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	278 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	279
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	280 def test_known_answers(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	281 for crcfun_params, v in self.known_answers:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	282 crcfun = mkCrcFun(*crcfun_params)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	283 self.assertEqual(crcfun(b'',0), 0, "Wrong answer for CRC parameters %s, input ''" % (crcfun_params,))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	284 for i, msg in enumerate(self.test_messages):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	285 self.assertEqual(crcfun(msg), v[i], "Wrong answer for CRC parameters %s, input '%s'" % (crcfun_params,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	286 self.assertEqual(crcfun(msg[4:], crcfun(msg[:4])), v[i], "Wrong answer for CRC parameters %s, input '%s'" % (crcfun_params,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	287 self.assertEqual(crcfun(msg[-1:], crcfun(msg[:-1])), v[i], "Wrong answer for CRC parameters %s, input '%s'" % (crcfun_params,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	288
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	289
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	290 class CompareReferenceCrcTest(unittest.TestCase):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	291 test_messages = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	292 b'',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	293 b'T',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	294 b'123456789',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	295 b'CatMouse987654321',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	296 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	297
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	298 test_poly_crcs = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	299 [ (g8,0,0), crc8p ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	300 [ (g16,0,0), crc16p ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	301 [ (g24,0,0), crc24p ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	302 [ (g32,0,0), crc32p ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	303 [ (g64a,0,0), crc64ap ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	304 [ (g64b,0,0), crc64bp ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	305 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	306
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	307 @staticmethod
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	308 def reference_crc32(d, crc=0):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	309 """This function modifies the return value of binascii.crc32
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	310 to be an unsigned 32-bit value. I.e. in the range 0 to 2**32-1."""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	311 # Work around the future warning on constants.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	312 if crc > 0x7FFFFFFF:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	313 x = int(crc & 0x7FFFFFFF)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	314 crc = x \| -2147483648
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	315 x = binascii.crc32(d,crc)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	316 return int(x) & 0xFFFFFFFF
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	317
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	318 def test_compare_crc32(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	319 """The binascii module has a 32-bit CRC function that is used in a wide range
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	320 of applications including the checksum used in the ZIP file format.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	321 This test compares the CRC-32 implementation of this crcmod module to
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	322 that of binascii.crc32."""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	323 # The following function should produce the same result as
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	324 # self.reference_crc32 which is derived from binascii.crc32.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	325 crc32 = mkCrcFun(g32,0,1,0xFFFFFFFF)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	326
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	327 for msg in self.test_messages:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	328 self.assertEqual(crc32(msg), self.reference_crc32(msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	329
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	330 def test_compare_poly(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	331 """Compare various CRCs of this crcmod module to a pure
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	332 polynomial-based implementation."""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	333 for crcfun_params, crc_poly_fun in self.test_poly_crcs:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	334 # The following function should produce the same result as
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	335 # the associated polynomial CRC function.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	336 crcfun = mkCrcFun(*crcfun_params)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	337
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	338 for msg in self.test_messages:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	339 self.assertEqual(crcfun(msg), crc_poly_fun(msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	340
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	341
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	342 class CrcClassTest(unittest.TestCase):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	343 """Verify the Crc class"""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	344
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	345 msg = b'CatMouse987654321'
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	346
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	347 def test_simple_crc32_class(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	348 """Verify the CRC class when not using xorOut"""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	349 crc = Crc(g32)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	350
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	351 str_rep = \
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	352 '''poly = 0x104C11DB7
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	353 reverse = True
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	354 initCrc = 0xFFFFFFFF
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	355 xorOut = 0x00000000
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	356 crcValue = 0xFFFFFFFF'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	357 self.assertEqual(str(crc), str_rep)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	358 self.assertEqual(crc.digest(), b'\xff\xff\xff\xff')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	359 self.assertEqual(crc.hexdigest(), 'FFFFFFFF')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	360
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	361 crc.update(self.msg)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	362 self.assertEqual(crc.crcValue, 0xF7B400A7)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	363 self.assertEqual(crc.digest(), b'\xf7\xb4\x00\xa7')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	364 self.assertEqual(crc.hexdigest(), 'F7B400A7')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	365
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	366 # Verify the .copy() method
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	367 x = crc.copy()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	368 self.assertTrue(x is not crc)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	369 str_rep = \
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	370 '''poly = 0x104C11DB7
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	371 reverse = True
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	372 initCrc = 0xFFFFFFFF
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	373 xorOut = 0x00000000
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	374 crcValue = 0xF7B400A7'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	375 self.assertEqual(str(crc), str_rep)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	376 self.assertEqual(str(x), str_rep)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	377
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	378 def test_full_crc32_class(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	379 """Verify the CRC class when using xorOut"""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	380
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	381 crc = Crc(g32, initCrc=0, xorOut= ~0)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	382
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	383 str_rep = \
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	384 '''poly = 0x104C11DB7
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	385 reverse = True
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	386 initCrc = 0x00000000
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	387 xorOut = 0xFFFFFFFF
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	388 crcValue = 0x00000000'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	389 self.assertEqual(str(crc), str_rep)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	390 self.assertEqual(crc.digest(), b'\x00\x00\x00\x00')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	391 self.assertEqual(crc.hexdigest(), '00000000')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	392
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	393 crc.update(self.msg)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	394 self.assertEqual(crc.crcValue, 0x84BFF58)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	395 self.assertEqual(crc.digest(), b'\x08\x4b\xff\x58')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	396 self.assertEqual(crc.hexdigest(), '084BFF58')
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	397
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	398 # Verify the .copy() method
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	399 x = crc.copy()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	400 self.assertTrue(x is not crc)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	401 str_rep = \
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	402 '''poly = 0x104C11DB7
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	403 reverse = True
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	404 initCrc = 0x00000000
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	405 xorOut = 0xFFFFFFFF
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	406 crcValue = 0x084BFF58'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	407 self.assertEqual(str(crc), str_rep)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	408 self.assertEqual(str(x), str_rep)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	409
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	410 # Verify the .new() method
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	411 y = crc.new()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	412 self.assertTrue(y is not crc)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	413 self.assertTrue(y is not x)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	414 str_rep = \
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	415 '''poly = 0x104C11DB7
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	416 reverse = True
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	417 initCrc = 0x00000000
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	418 xorOut = 0xFFFFFFFF
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	419 crcValue = 0x00000000'''
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	420 self.assertEqual(str(y), str_rep)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	421
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	422
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	423 class PredefinedCrcTest(unittest.TestCase):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	424 """Verify the predefined CRCs"""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	425
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	426 test_messages_for_known_answers = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	427 b'', # Test cases below depend on this first entry being the empty string.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	428 b'T',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	429 b'CatMouse987654321',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	430 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	431
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	432 known_answers = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	433 [ 'crc-aug-ccitt', (0x1D0F, 0xD6ED, 0x5637) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	434 [ 'x-25', (0x0000, 0xE4D9, 0x0A91) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	435 [ 'crc-32', (0x00000000, 0xBE047A60, 0x084BFF58) ],
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	436 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	437
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	438 def test_known_answers(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	439 for crcfun_name, v in self.known_answers:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	440 crcfun = mkPredefinedCrcFun(crcfun_name)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	441 self.assertEqual(crcfun(b'',0), 0, "Wrong answer for CRC '%s', input ''" % crcfun_name)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	442 for i, msg in enumerate(self.test_messages_for_known_answers):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	443 self.assertEqual(crcfun(msg), v[i], "Wrong answer for CRC %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	444 self.assertEqual(crcfun(msg[4:], crcfun(msg[:4])), v[i], "Wrong answer for CRC %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	445 self.assertEqual(crcfun(msg[-1:], crcfun(msg[:-1])), v[i], "Wrong answer for CRC %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	446
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	447 def test_class_with_known_answers(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	448 for crcfun_name, v in self.known_answers:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	449 for i, msg in enumerate(self.test_messages_for_known_answers):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	450 crc1 = PredefinedCrc(crcfun_name)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	451 crc1.update(msg)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	452 self.assertEqual(crc1.crcValue, v[i], "Wrong answer for crc1 %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	453
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	454 crc2 = crc1.new()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	455 # Check that crc1 maintains its same value, after .new() call.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	456 self.assertEqual(crc1.crcValue, v[i], "Wrong state for crc1 %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	457 # Check that the new class instance created by .new() contains the initialisation value.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	458 # This depends on the first string in self.test_messages_for_known_answers being
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	459 # the empty string.
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	460 self.assertEqual(crc2.crcValue, v[0], "Wrong state for crc2 %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	461
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	462 crc2.update(msg)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	463 # Check that crc1 maintains its same value, after crc2 has called .update()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	464 self.assertEqual(crc1.crcValue, v[i], "Wrong state for crc1 %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	465 # Check that crc2 contains the right value after calling .update()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	466 self.assertEqual(crc2.crcValue, v[i], "Wrong state for crc2 %s, input '%s'" % (crcfun_name,msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	467
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	468 def test_function_predefined_table(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	469 for table_entry in _predefined_crc_definitions:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	470 # Check predefined function
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	471 crc_func = mkPredefinedCrcFun(table_entry['name'])
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	472 calc_value = crc_func(b"123456789")
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	473 self.assertEqual(calc_value, table_entry['check'], "Wrong answer for CRC '%s'" % table_entry['name'])
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	474
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	475 def test_class_predefined_table(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	476 for table_entry in _predefined_crc_definitions:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	477 # Check predefined class
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	478 crc1 = PredefinedCrc(table_entry['name'])
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	479 crc1.update(b"123456789")
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	480 self.assertEqual(crc1.crcValue, table_entry['check'], "Wrong answer for CRC '%s'" % table_entry['name'])
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	481
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	482
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	483 class InputTypesTest(unittest.TestCase):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	484 """Check the various input types that CRC functions can accept."""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	485
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	486 msg = b'CatMouse987654321'
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	487
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	488 check_crc_names = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	489 'crc-aug-ccitt',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	490 'x-25',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	491 'crc-32',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	492 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	493
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	494 array_check_types = [
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	495 'B',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	496 'H',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	497 'I',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	498 'L',
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	499 ]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	500
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	501 def test_bytearray_input(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	502 """Test that bytearray inputs are accepted, as an example
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	503 of a type that implements the buffer protocol."""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	504 for crc_name in self.check_crc_names:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	505 crcfun = mkPredefinedCrcFun(crc_name)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	506 for i in range(len(self.msg) + 1):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	507 test_msg = self.msg[:i]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	508 bytes_answer = crcfun(test_msg)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	509 bytearray_answer = crcfun(bytearray(test_msg))
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	510 self.assertEqual(bytes_answer, bytearray_answer)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	511
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	512 def test_array_input(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	513 """Test that array inputs are accepted, as an example
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	514 of a type that implements the buffer protocol."""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	515 for crc_name in self.check_crc_names:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	516 crcfun = mkPredefinedCrcFun(crc_name)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	517 for i in range(len(self.msg) + 1):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	518 test_msg = self.msg[:i]
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	519 bytes_answer = crcfun(test_msg)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	520 for array_type in self.array_check_types:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	521 if i % array(array_type).itemsize == 0:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	522 test_array = array(array_type, test_msg)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	523 array_answer = crcfun(test_array)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	524 self.assertEqual(bytes_answer, array_answer)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	525
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	526 def test_unicode_input(self):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	527 """Test that Unicode input raises TypeError"""
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	528 for crc_name in self.check_crc_names:
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	529 crcfun = mkPredefinedCrcFun(crc_name)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	530 with self.assertRaises(TypeError):
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	531 crcfun("123456789")
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	532
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	533
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	534 def runtests():
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	535 print("Using extension:", _usingExtension)
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	536 print()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	537 unittest.main()
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	538
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	539
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	540 if __name__ == '__main__':
d038f0a9ba49 Vendored crcmod2 into sub-package "cutils.crcmod" as pure-Python implementation of additional "digests": CRC sums. Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	541 runtests()

Mercurial > hgrepos > Python > apps > py-cutils

annotate cutils/crcmod/python3/test.py @ 325:cd458e318553