~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005 by Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Tests for the osutils wrapper.

"""

import os

import sys

import bzrlib

from bzrlib.errors import BzrBadParameter

import bzrlib.osutils as osutils

from bzrlib.tests import TestCaseInTempDir, TestCase

class TestOSUtils(TestCaseInTempDir):

    def test_fancy_rename(self):

        # This should work everywhere

        def rename(a, b):

            osutils.fancy_rename(a, b,

                    rename_func=os.rename,

                    unlink_func=os.unlink)

        open('a', 'wb').write('something in a\n')

        rename('a', 'b')

        self.failIfExists('a')

        self.failUnlessExists('b')

        self.check_file_contents('b', 'something in a\n')

        open('a', 'wb').write('new something in a\n')

        rename('b', 'a')

        self.check_file_contents('a', 'something in a\n')

    def test_rename(self):

        # Rename should be semi-atomic on all platforms

        open('a', 'wb').write('something in a\n')

        osutils.rename('a', 'b')

        self.failIfExists('a')

        self.failUnlessExists('b')

        self.check_file_contents('b', 'something in a\n')

        open('a', 'wb').write('new something in a\n')

        osutils.rename('b', 'a')

        self.check_file_contents('a', 'something in a\n')

    # TODO: test fancy_rename using a MemoryTransport

class TestSafeUnicode(TestCase):

    def test_from_ascii_string(self):

        self.assertEqual(u'foobar', osutils.safe_unicode('foobar'))

    def test_from_unicode_string_ascii_contents(self):

        self.assertEqual(u'bargam', osutils.safe_unicode(u'bargam'))

    def test_from_unicode_string_unicode_contents(self):

        self.assertEqual(u'bargam\xae', osutils.safe_unicode(u'bargam\xae'))

    def test_from_utf8_string(self):

        self.assertEqual(u'foo\xae', osutils.safe_unicode('foo\xc2\xae'))

    def test_bad_utf8_string(self):

        self.assertRaises(BzrBadParameter, osutils.safe_unicode, '\xbb\xbb')