242 lines
9.7 KiB
Python
242 lines
9.7 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2010-2014 Bastian Kleineidam
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import unittest
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import os
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import shutil
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import patoolib
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from .. import basedir, datadir
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# All text files have '42' as content.
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TextFileContent = '42'
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class Content:
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"""The test archives have one of several set of content files.
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The different content file sets have each a constant defined
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by this class.
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"""
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# Recursive archives for extraction have a text file in a directory:
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# t/t.txt
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# Recursive archives for creation have two text files in directories:
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# foo dir/t.txt
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# foo dir/bar/t.txt
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Recursive = 'recursive'
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# Singlefile archives for extraction have a text file t.txt
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# Singlefile archives for creation have a text file `foo .txt'
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Singlefile = 'singlefile'
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# Multifile archives for extraction have two text files: t.txt and t2.txt
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# Multifile archives for creation have two text files: foo .txt and foo2 .txt
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Multifile = 'multifile'
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class ArchiveTest (unittest.TestCase):
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"""Helper class for archive tests, handling one commandline program."""
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# set program to use for archive handling in subclass
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program = None
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def archive_commands (self, filename, **kwargs):
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"""Run archive commands list, test, extract and create.
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All keyword arguments are delegated to the create test function."""
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self.archive_list(filename)
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if not kwargs.get('skip_test'):
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self.archive_test(filename)
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self.archive_extract(filename, check=kwargs.get('check', Content.Recursive))
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if not kwargs.get('skip_create'):
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self.archive_create(filename, **kwargs)
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def archive_extract (self, filename, check=Content.Recursive):
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"""Test archive extraction."""
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archive = os.path.join(datadir, filename)
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self.assertTrue(os.path.isabs(archive), "archive path is not absolute: %r" % archive)
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self._archive_extract(archive, check)
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# archive name relative to tmpdir
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relarchive = os.path.join("..", archive[len(basedir)+1:])
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self._archive_extract(relarchive, check, verbosity=1)
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def _archive_extract (self, archive, check, verbosity=0):
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# create a temporary directory for extraction
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tmpdir = patoolib.util.tmpdir(dir=basedir)
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try:
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olddir = patoolib.util.chdir(tmpdir)
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try:
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output = patoolib.extract_archive(archive, program=self.program, verbosity=verbosity)
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if check:
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self.check_extracted_archive(archive, output, check)
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finally:
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if olddir:
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os.chdir(olddir)
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finally:
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shutil.rmtree(tmpdir)
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def check_extracted_archive (self, archive, output, check):
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if check == Content.Recursive:
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# outdir is the 't' directory of the archive
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self.assertEqual(output, 't')
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self.check_directory(output, 't')
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txtfile = os.path.join(output, 't.txt')
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self.check_textfile(txtfile, 't.txt')
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elif check == Content.Singlefile:
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# a non-existing directory to ensure files do not exist in it
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ned = get_nonexisting_directory(os.getcwd())
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expected_output = os.path.basename(patoolib.util.get_single_outfile(ned, archive))
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self.check_textfile(output, expected_output)
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elif check == Content.Multifile:
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txtfile = os.path.join(output, 't.txt')
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self.check_textfile(txtfile, 't.txt')
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txtfile2 = os.path.join(output, 't2.txt')
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self.check_textfile(txtfile2, 't2.txt')
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def check_directory (self, dirname, expectedname):
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"""Check that directory exists."""
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self.assertTrue(os.path.isdir(dirname), dirname)
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self.assertEqual(os.path.basename(dirname), expectedname)
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def check_textfile (self, filename, expectedname):
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"""Check that filename exists and has the default content."""
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self.assertTrue(os.path.isfile(filename), repr(filename))
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self.assertEqual(os.path.basename(filename), expectedname)
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self.assertEqual(get_filecontent(filename), TextFileContent)
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def archive_list (self, filename):
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"""Test archive listing."""
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archive = os.path.join(datadir, filename)
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for verbosity in (-1, 0, 1, 2):
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patoolib.list_archive(archive, program=self.program, verbosity=verbosity)
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def archive_test (self, filename):
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"""Test archive testing."""
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archive = os.path.join(datadir, filename)
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for verbosity in (-1, 0, 1, 2):
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patoolib.test_archive(archive, program=self.program, verbosity=verbosity)
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def archive_create (self, archive, srcfiles=None, check=Content.Recursive):
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"""Test archive creation."""
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if srcfiles is None:
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if check == Content.Recursive:
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srcfiles = ('t',)
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elif check == Content.Singlefile:
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srcfiles = ('t.txt',)
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elif check == Content.Multifile:
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srcfiles = ('t.txt', 't2.txt',)
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else:
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raise ValueError('invalid check value %r' % check)
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olddir = patoolib.util.chdir(datadir)
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try:
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# The format and compression arguments are needed for creating
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# archives with unusual file extensions.
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for verbosity in (-1, 0, 1, 2):
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self._archive_create(archive, srcfiles, program=self.program, verbosity=verbosity)
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finally:
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if olddir:
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os.chdir(olddir)
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def _archive_create (self, archive, srcfiles, program=None, verbosity=0):
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"""Create archive from filename."""
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for srcfile in srcfiles:
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self.assertFalse(os.path.isabs(srcfile))
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self.assertTrue(os.path.exists(srcfile))
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# create a temporary directory for creation
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tmpdir = patoolib.util.tmpdir(dir=basedir)
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try:
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archive = os.path.join(tmpdir, archive)
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self.assertTrue(os.path.isabs(archive), "archive path is not absolute: %r" % archive)
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patoolib.create_archive(archive, srcfiles, verbosity=verbosity, program=program)
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self.assertTrue(os.path.isfile(archive))
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self.check_created_archive_with_test(archive)
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self.check_created_archive_with_diff(archive, srcfiles)
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finally:
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shutil.rmtree(tmpdir)
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def check_created_archive_with_test(self, archive):
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command = patoolib.test_archive
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program = self.program
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# special case for programs that cannot test what they create
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if self.program in ('compress', 'py_gzip'):
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program = 'gzip'
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elif self.program == 'py_bz2':
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program = 'bzip2'
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elif self.program == 'py_lzma':
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program = 'xz'
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elif self.program == 'zip':
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program = 'unzip'
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elif self.program in ('rzip', 'shorten'):
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program = 'py_echo'
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command = patoolib.list_archive
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elif self.program == 'lcab':
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program = 'cabextract'
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elif self.program == 'genisoimage':
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program = '7z'
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elif self.program == 'shar':
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return
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command(archive, program=program)
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def check_created_archive_with_diff(self, archive, srcfiles):
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"""Extract created archive again and compare the contents."""
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# diff srcfile and output
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diff = patoolib.util.find_program("diff")
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if not diff:
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return
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program = self.program
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# special case for programs that cannot extract what they create
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if self.program == 'compress':
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program = 'gzip'
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elif self.program == 'zip':
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program = 'unzip'
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elif self.program == 'lcab':
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program = 'cabextract'
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elif self.program == 'shar':
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program = 'unshar'
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elif self.program == 'genisoimage':
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program = '7z'
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tmpdir = patoolib.util.tmpdir(dir=basedir)
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try:
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olddir = patoolib.util.chdir(tmpdir)
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try:
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output = patoolib.extract_archive(archive, program=program)
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if len(srcfiles) == 1:
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source = os.path.join(datadir, srcfiles[0])
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patoolib.util.run_checked([diff, "-urN", source, output])
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else:
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for srcfile in srcfiles:
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source = os.path.join(datadir, srcfile)
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target = os.path.join(output, srcfile)
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patoolib.util.run_checked([diff, "-urN", source, target])
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finally:
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if olddir:
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os.chdir(olddir)
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finally:
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shutil.rmtree(tmpdir)
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def get_filecontent(filename):
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"""Get file data as text."""
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with open(filename) as fo:
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return fo.read()
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def get_nonexisting_directory(basedir):
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"""Note: this is _not_ intended to be used to create a directory."""
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d = os.path.join(basedir, "foo")
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while os.path.exists(d):
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d += 'a'
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if len(d) > 100:
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# wtf
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raise ValueError('could not construct unique directory name at %r' % basedir)
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return d
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