~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006, 2008, 2009, 2011 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

import os

from bzrlib import (

    osutils,

    )

from bzrlib.tests import TestCaseWithTransport

from bzrlib.errors import PathNotChild

from bzrlib.osutils import relpath, pathjoin, abspath, realpath

class MoreTests(TestCaseWithTransport):

    def test_relpath(self):

        """test for branch path lookups

        bzrlib.osutils._relpath do a simple but subtle

        job: given a path (either relative to cwd or absolute), work out

        if it is inside a branch and return the path relative to the base.

        """

        import tempfile

        savedir = os.getcwdu()

        dtmp = osutils.mkdtemp()

        # On Mac OSX, /tmp actually expands to /private/tmp

        dtmp = realpath(dtmp)

        def rp(p):

            return relpath(dtmp, p)

        try:

            # check paths inside dtmp while standing outside it

            self.assertEqual(rp(pathjoin(dtmp, 'foo')), 'foo')

            # root = nothing

            self.assertEqual(rp(dtmp), '')

            self.assertRaises(PathNotChild,

                              rp,

                              '/etc')

            # now some near-miss operations -- note that

            # os.path.commonprefix gets these wrong!

            self.assertRaises(PathNotChild,

                              rp,

                              dtmp.rstrip('\\/') + '2')

            self.assertRaises(PathNotChild,

                              rp,

                              dtmp.rstrip('\\/') + '2/foo')

            # now operations based on relpath of files in current

            # directory, or nearby

            os.chdir(dtmp)

            self.assertEqual(rp('foo/bar/quux'), 'foo/bar/quux')

            self.assertEqual(rp('foo'), 'foo')

            self.assertEqual(rp('./foo'), 'foo')

            self.assertEqual(rp(abspath('foo')), 'foo')

            self.assertRaises(PathNotChild,

                              rp, '../foo')

        finally:

            os.chdir(savedir)

            osutils.rmtree(dtmp)