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226 lines
7.9 KiB
226 lines
7.9 KiB
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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"""
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gcp: Goffi's CoPier
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Copyright (C) 2010, 2011 Jérôme Poisson <goffi@goffi.org>
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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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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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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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"""
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from __future__ import with_statement
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import tempfile
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import unittest
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from os import getcwd, chdir, system, mkdir, makedirs, listdir
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from os.path import join, isdir
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from shutil import rmtree
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from random import randrange
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from hashlib import sha1
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#size shorcuts
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S10K = 1024 * 10
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S100K = 1024 * 100
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S1M = 1024 * 1024
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S10M = 1024 * 1024 * 10
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S100M = 1024 * 1024 * 100
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def sha1sum(filename, buf_size=4096):
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"""Return the SHA1 hash of a file
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@param filename: path to the file
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@param buf_size: size of the buffer to use for calculation"""
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csum = sha1()
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with open(filename) as fd:
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data = fd.read(buf_size)
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while data:
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csum.update(data)
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data = fd.read(buf_size)
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return csum.digest()
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def dirCheck(dir_path):
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"""Recursively calculate SHA1 sum of a dir
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@param path: path of the dir to check
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@return: a dict in the form [{filepath: sum,...}]
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"""
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def recursive_sum(directory, result):
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for current_path in listdir(directory):
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full_path = join(directory, current_path)
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if isdir(full_path):
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recursive_sum(full_path, result)
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else:
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result[full_path] = sha1sum(full_path)
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result = {}
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_ori_dir = getcwd()
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chdir(dir_path)
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recursive_sum(".", result)
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chdir(_ori_dir)
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return result
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#def makeRandomFile(path, size, buf_size=4096):
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# """Create a fake file
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# @param path: where the file is created
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# @param size: size of the file to create in bytes"""
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# def seq(size):
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# return ''.join(chr(randrange(256)) for i in range(size))
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# fd = open(path, 'w')
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# for byte in range(size//buf_size):
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# fd.write(seq(buf_size))
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# fd.write(seq(size%buf_size))
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# fd.close()
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def makeRandomFile(path, size=S10K, buf_size=4096):
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"""Create a fake file using /dev/urandom
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@param path: where the file must be created
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@param size: size of the file to create in bytes"""
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source = open('/dev/urandom','r')
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dest = open(path, 'w')
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for byte in range(size//buf_size):
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dest.write(source.read(buf_size))
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dest.write(source.read(size%buf_size))
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dest.close()
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def makeTestDir(path):
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"""Helper method to easily create a test dir
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@param path: where the dir must be created"""
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for i in range(2):
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subdir = join(path,'subdir_%d' % i)
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makedirs(subdir)
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for j in range(2):
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makeRandomFile(join(subdir, 'file_%d' % j), S10K)
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for i in range(2):
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makeRandomFile(join(path,'file_%d' % i), S10K)
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class TestCopyCases(unittest.TestCase):
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"""Test basic copy use cases, using gcp externally
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gcp must be available in the PATH"""
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#TODO: check journal
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def setUp(self):
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self.ori_dir = getcwd()
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self.tmp_dir = tempfile.mkdtemp()
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chdir(self.tmp_dir)
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def tearDown(self):
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chdir(self.ori_dir)
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rmtree(self.tmp_dir)
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def test_one_file_copy(self):
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"""Copy one file and test the result"""
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makeRandomFile('file_1', S10K)
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ori_sum = sha1sum('file_1')
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ret = system("gcp file_1 file_2")
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self.assertEqual(ret,0)
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dest_sum = sha1sum('file_2')
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self.assertEqual(ori_sum, dest_sum)
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def test_one_file_copy_already_exists(self):
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"""Check that an existing file is not overwritten"""
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makeRandomFile('file_1', S10K)
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makeRandomFile('file_2', S10K)
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file_2_sum = sha1sum('file_2')
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ret = system("gcp file_1 file_2")
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self.assertNotEqual(ret,0)
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file_2_sum_bis = sha1sum('file_2')
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self.assertEqual(file_2_sum, file_2_sum_bis)
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def test_one_file_copy_already_exists_force(self):
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"""Check that an existing file is overwritten with --force"""
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makeRandomFile('file_1', S10K)
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makeRandomFile('file_2', S10K)
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file_1_sum = sha1sum('file_1')
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ret = system("gcp -f file_1 file_2")
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self.assertEqual(ret,0)
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file_2_sum_bis = sha1sum('file_2')
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self.assertEqual(file_1_sum, file_2_sum_bis)
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def test_one_dir_copy(self):
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"""Check copy of one dir to a non existant path"""
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makeTestDir('dir_1')
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check_1 = dirCheck('dir_1')
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ret = system("gcp -r dir_1 dir_2")
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self.assertEqual(ret,0)
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check_2 = dirCheck('dir_2')
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self.assertEqual(check_1, check_2)
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def test_one_dir_copy_nocopy(self):
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"""Check that a dir is not copied without the recursive option"""
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makeTestDir('dir_1')
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check_before = dirCheck('.')
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ret = system("gcp dir_1 dir_2")
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self.assertEqual(ret,0)
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check_after = dirCheck('.')
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self.assertEqual(check_before, check_after)
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def test_one_dir_copy_existing_dest(self):
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"""Check that a dir is copied inside an existing destination"""
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makeTestDir('dir_1')
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mkdir('dir_2')
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check_1 = dirCheck('dir_1')
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ret = system("gcp -r dir_1 dir_2")
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self.assertEqual(ret,0)
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self.assertEqual(listdir('dir_2'), ['dir_1'])
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check_2 = dirCheck('dir_2/dir_1')
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self.assertEqual(check_1, check_2)
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def test_mixt_copy_existing_dest(self):
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"""Check that a mixt copy (files + dir) to an existing dest work as expected"""
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for i in range(2):
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makeRandomFile('file_%d' % i, S10K)
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makeTestDir('dir_%d' % i)
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check_1 = dirCheck('.')
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mkdir('dest_dir')
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ret = system("gcp -r file_0 file_1 dir_0 dir_1 dest_dir")
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self.assertEqual(ret,0)
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check_2 = dirCheck('dest_dir')
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self.assertEqual(check_1, check_2)
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def test_mixt_copy_nonexisting_dest(self):
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"""Check that a mixt copy (files + dir) to an non existing dest work as expected
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/!\\ the behavious is different of the one of cp in this case ! (cp doesn't copy at all, while gcp create the dest)"""
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for i in range(2):
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makeRandomFile('file_%d' % i, S10K)
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makeTestDir('dir_%d' % i)
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check_1 = dirCheck('.')
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ret = system("gcp -r file_0 file_1 dir_0 dir_1 dest_dir")
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self.assertEqual(ret,0)
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check_2 = dirCheck('dest_dir')
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self.assertEqual(check_1, check_2)
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def test_mixt_copy_existing_dest_nonrecursive(self):
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"""Check that a mixt copy (files + dir) to an existing dest without the recursive option work as expected"""
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for i in range(2):
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makeRandomFile('file_%d' % i, S10K)
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makeTestDir('dir_%d' % i)
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mkdir('dest_dir')
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ret = system("gcp file_0 file_1 dir_0 dir_1 dest_dir")
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self.assertEqual(ret,0)
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self.assertEqual(set(listdir('dest_dir')), set(['file_0', 'file_1']))
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self.assertEqual(sha1sum('file_0'), sha1sum('dest_dir/file_0'))
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self.assertEqual(sha1sum('file_1'), sha1sum('dest_dir/file_1'))
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def test_mixt_copy_nonexisting_dest_nonrecursive(self):
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"""Check that a mixt copy (files + dir) to an existing dest without the recursive option work as expected"""
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for i in range(2):
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makeRandomFile('file_%d' % i, S10K)
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makeTestDir('dir_%d' % i)
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check_before = dirCheck('.')
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ret = system("gcp file_0 file_1 dir_0 dir_1 dest_dir")
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self.assertEqual(ret >> 8, 1)
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check_after = dirCheck('.')
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self.assertEqual(check_before, check_after)
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if __name__ == '__main__':
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unittest.main()
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