ref: b78900486172244c39187e89a085b12f2b6abdb1
dir: /test_jbig2dec.py/
#! /usr/bin/env python
# this is the testtest script for jbig2dec
# $Id$
import os, re
import unittest
class KnownFileHash(unittest.TestCase):
# hashes of known test inputs
known_042_DECODED = "ebfdf6e2fc5ff3ee2271c2fa19de0e52712046e8"
# we do not have correct hashes for these
known_amb_DECODED = "ff32ffff0776ff66ff254129ff28ffffffff6bff"
# these are known test files in the form
# (filename, sha-1(file), sha-1(decoded document)
known_hashes = ( ('../ubc/042_1.jb2',
"673e1ee5c55ab241b171e476ba1168a42733ddaa",
known_042_DECODED),
('../ubc/042_2.jb2',
"9aa2804e2d220952035c16fb3c907547884067c5",
known_042_DECODED),
('../ubc/042_3.jb2',
"9663a5f35727f13e61a0a2f0a64207b1f79e7d67",
known_042_DECODED),
('../ubc/042_4.jb2',
"014df658c8b99b600c2ceac3f1d53c7cc2b4917c",
known_042_DECODED),
('../ubc/042_5.jb2',
"264720a6ccbbf72aa6a2cfb6343f43b8e6f2da4b",
known_042_DECODED),
('../ubc/042_6.jb2',
"96f7dc9df4a1b305f9ac082dd136f85ef5b108fe",
known_042_DECODED),
('../ubc/042_7.jb2',
"5526371ba9dc2b8743f20ae3e05a7e60b3dcba76",
known_042_DECODED),
('../ubc/042_8.jb2',
"4bf0c87dfaf40d67c36f2a083579eeda26d54641",
known_042_DECODED),
('../ubc/042_9.jb2',
"53e630e7fe2fe6e1d6164758e15fc93382e07f55",
known_042_DECODED),
('../ubc/042_10.jb2',
"5ca1364367e25cb8f642e9dc677a94d5cfed0c8b",
known_042_DECODED),
('../ubc/042_11.jb2',
"bc194caf022bc5345fc41259e05cea3c08245216",
known_042_DECODED),
('../ubc/042_12.jb2',
"f354df8eb4849bc707f088739e322d1fe3a14ef3",
known_042_DECODED),
('../ubc/042_13.jb2',
"7d428bd542f58591b254d9827f554b0552c950a7",
known_042_DECODED),
('../ubc/042_14.jb2',
"c40fe3a02acb6359baf9b40fc9c49bc0800be589",
known_042_DECODED),
('../ubc/042_15.jb2',
"a9e39fc1ecb178aec9f05039514d75ea3246246c",
known_042_DECODED),
('../ubc/042_16.jb2',
"4008bbca43670f3c90eaee26516293ba95baaf3d",
known_042_DECODED),
('../ubc/042_17.jb2',
"0ff95637b64c57d659a41c582da03e25321551fb",
known_042_DECODED),
('../ubc/042_18.jb2',
"87381d044f00c4329200e44decbe91bebfa31595",
known_042_DECODED),
('../ubc/042_19.jb2',
"387d95a140b456d4742622c788cf5b51cebbf438",
known_042_DECODED),
('../ubc/042_20.jb2',
"85c19e9ec42b8ddd6b860a1bebea1c67610e7a59",
known_042_DECODED),
('../ubc/042_21.jb2',
"ab535c7d7a61a7b9dc53d546e7419ca78ac7f447",
known_042_DECODED),
('../ubc/042_22.jb2',
"a9e2b365be63716dbde74b0661c3c6efd2a6844d",
known_042_DECODED),
('../ubc/042_23.jb2',
"8ffa40a05e93e10982b38a2233a8da58c1b5c343",
known_042_DECODED),
('../ubc/042_24.jb2',
"2553fe65111c58f6412de51d8cdc71651e778ccf",
known_042_DECODED),
('../ubc/042_25.jb2',
"52de4a3b86252d896a8d783ba71dd0699333dd69",
known_042_DECODED),
('../ubc/amb_1.jb2',
"d6d6d1c981dc37a09108c1e3ed990aa5b345fa6a",
known_amb_DECODED),
('../ubc/amb_2.jb2',
"9af6616a89eb03f8934de72626e301a716366c3c",
known_amb_DECODED),
('../str-p39',
"1a303e33d3ea57eb7e19a676a1b2f28baa29b045",
"ff373f070f5f405b732c53ffffff087eff22ff5b") )
def __init__(self, file, file_hash, decode_hash):
self.file = file
self.file_hash = file_hash
self.decode_hash = decode_hash
unittest.TestCase.__init__(self)
def shortDescription(self):
return "Checking '%s' for correct decoded document hash" % self.file
def runTest(self):
'''jbig2dec should return proper document hashes for known files'''
# invoke jbig2dec on our file
instance = os.popen('./jbig2dec -q -o /dev/null --hash ' + self.file)
lines = instance.readlines()
exit_code = instance.close()
self.failIf(exit_code, 'jbig2dec should exit normally')
# test here for correct hash
hash_pattern = re.compile('[0-9a-f]{%d}' % len(decode_hash))
for line in lines:
m = hash_pattern.search(line.lower())
if m:
self.assertEqual(self.decode_hash, m.group(),
'hash of known decoded document must be correct')
return
self.fail('document hash was not found in the output')
suite = unittest.TestSuite()
for filename, file_hash, decode_hash in KnownFileHash.known_hashes:
# only add tests for files we can find
if not os.access(filename, os.R_OK): continue
# todo: verify our file matches its encoded document hash
suite.addTest(KnownFileHash(filename, file_hash, decode_hash))
# run the defined tests if we're called as a script
if __name__ == "__main__":
import sys
verbosity = 2
runner = unittest.TextTestRunner(verbosity=verbosity)
result = runner.run(suite)
sys.exit(not result.wasSuccessful())