157 lines
5.3 KiB
Python
157 lines
5.3 KiB
Python
#!/usr/bin/env python3
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"""Test LZ4 interoperability between versions"""
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#
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# Copyright (C) 2011-present, Takayuki Matsuoka
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# All rights reserved.
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# GPL v2 License
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#
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import glob
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import subprocess
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import filecmp
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import os
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import shutil
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import sys
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import hashlib
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repo_url = 'https://github.com/lz4/lz4.git'
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tmp_dir_name = 'tests/versionsTest'
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make_cmd = 'make'
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git_cmd = 'git'
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test_dat_src = 'README.md'
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test_dat = 'test_dat'
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head = 'v999'
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def proc(cmd_args, pipe=True, dummy=False):
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if dummy:
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return
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if pipe:
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subproc = subprocess.Popen(cmd_args,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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else:
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subproc = subprocess.Popen(cmd_args)
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return subproc.communicate()
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def make(args, pipe=True):
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return proc([make_cmd] + args, pipe)
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def git(args, pipe=True):
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return proc([git_cmd] + args, pipe)
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def get_git_tags():
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stdout, stderr = git(['tag', '-l', 'r[0-9][0-9][0-9]'])
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tags = stdout.decode('utf-8').split()
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stdout, stderr = git(['tag', '-l', 'v[1-9].[0-9].[0-9]'])
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tags += stdout.decode('utf-8').split()
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return tags
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# https://stackoverflow.com/a/19711609/2132223
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def sha1_of_file(filepath):
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with open(filepath, 'rb') as f:
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return hashlib.sha1(f.read()).hexdigest()
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if __name__ == '__main__':
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error_code = 0
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base_dir = os.getcwd() + '/..' # /path/to/lz4
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tmp_dir = base_dir + '/' + tmp_dir_name # /path/to/lz4/tests/versionsTest
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clone_dir = tmp_dir + '/' + 'lz4' # /path/to/lz4/tests/versionsTest/lz4
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programs_dir = base_dir + '/programs' # /path/to/lz4/programs
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os.makedirs(tmp_dir, exist_ok=True)
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# since Travis clones limited depth, we should clone full repository
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if not os.path.isdir(clone_dir):
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git(['clone', repo_url, clone_dir])
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shutil.copy2(base_dir + '/' + test_dat_src, tmp_dir + '/' + test_dat)
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# Retrieve all release tags
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print('Retrieve all release tags :')
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os.chdir(clone_dir)
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tags = [head] + get_git_tags()
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print(tags);
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# Build all release lz4c and lz4c32
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for tag in tags:
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os.chdir(base_dir)
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dst_lz4c = '{}/lz4c.{}' .format(tmp_dir, tag) # /path/to/lz4/test/lz4test/lz4c.<TAG>
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dst_lz4c32 = '{}/lz4c32.{}'.format(tmp_dir, tag) # /path/to/lz4/test/lz4test/lz4c32.<TAG>
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if not os.path.isfile(dst_lz4c) or not os.path.isfile(dst_lz4c32) or tag == head:
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if tag != head:
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r_dir = '{}/{}'.format(tmp_dir, tag) # /path/to/lz4/test/lz4test/<TAG>
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os.makedirs(r_dir, exist_ok=True)
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os.chdir(clone_dir)
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git(['--work-tree=' + r_dir, 'checkout', tag, '--', '.'], False)
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os.chdir(r_dir + '/programs') # /path/to/lz4/lz4test/<TAG>/programs
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else:
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os.chdir(programs_dir)
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make(['clean', 'lz4c'], False)
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shutil.copy2('lz4c', dst_lz4c)
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make(['clean', 'lz4c32'], False)
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shutil.copy2('lz4c32', dst_lz4c32)
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# Compress test.dat by all released lz4c and lz4c32
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print('Compress test.dat by all released lz4c and lz4c32')
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os.chdir(tmp_dir)
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for lz4 in glob.glob("*.lz4"):
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os.remove(lz4)
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for tag in tags:
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proc(['./lz4c.' + tag, '-1fz', test_dat, test_dat + '_1_64_' + tag + '.lz4'])
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proc(['./lz4c.' + tag, '-9fz', test_dat, test_dat + '_9_64_' + tag + '.lz4'])
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proc(['./lz4c32.' + tag, '-1fz', test_dat, test_dat + '_1_32_' + tag + '.lz4'])
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proc(['./lz4c32.' + tag, '-9fz', test_dat, test_dat + '_9_32_' + tag + '.lz4'])
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print('Full list of compressed files')
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lz4s = sorted(glob.glob('*.lz4'))
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for lz4 in lz4s:
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print(lz4 + ' : ' + repr(os.path.getsize(lz4)))
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# Remove duplicated .lz4 files
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print('')
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print('Duplicated files')
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lz4s = sorted(glob.glob('*.lz4'))
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for i, lz4 in enumerate(lz4s):
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if not os.path.isfile(lz4):
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continue
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for j in range(i+1, len(lz4s)):
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lz4t = lz4s[j]
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if not os.path.isfile(lz4t):
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continue
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if filecmp.cmp(lz4, lz4t):
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os.remove(lz4t)
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print('{} == {}'.format(lz4, lz4t))
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print('Enumerate only different compressed files')
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lz4s = sorted(glob.glob('*.lz4'))
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for lz4 in lz4s:
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print(lz4 + ' : ' + repr(os.path.getsize(lz4)) + ', ' + sha1_of_file(lz4))
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# Decompress remained .lz4 files by all released lz4c and lz4c32
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print('Decompression tests and verifications')
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lz4s = sorted(glob.glob('*.lz4'))
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for dec in glob.glob("*.dec"):
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os.remove(dec)
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for lz4 in lz4s:
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print(lz4, end=" ")
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for tag in tags:
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print(tag, end=" ")
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proc(['./lz4c.' + tag, '-df', lz4, lz4 + '_d64_' + tag + '.dec'])
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proc(['./lz4c32.' + tag, '-df', lz4, lz4 + '_d32_' + tag + '.dec'])
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print(' OK') # well, here, decompression has worked; but file is not yet verified
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# Compare all '.dec' files with test_dat
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decs = glob.glob('*.dec')
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for dec in decs:
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if not filecmp.cmp(dec, test_dat):
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print('ERR : ' + dec)
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error_code = 1
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else:
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print('OK : ' + dec)
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os.remove(dec)
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if error_code != 0:
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print('ERROR')
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sys.exit(error_code)
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