~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006, 2008-2012 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

import bzrlib

from bzrlib import (

    errors,

    osutils,

    tests,

    )

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

class MoreTests(tests.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.

        """

        dtmp = osutils.mkdtemp()

        self.addCleanup(osutils.rmtree, dtmp)

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

        dtmp = realpath(dtmp)

        def rp(p):

            return relpath(dtmp, p)

        # check paths inside dtmp while standing outside it

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

        # root = nothing

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

        self.assertRaises(errors.PathNotChild, rp, '/etc')

        # now some near-miss operations -- note that

        # os.path.commonprefix gets these wrong!

        self.assertRaises(errors.PathNotChild, rp, dtmp.rstrip('\\/') + '2')

        self.assertRaises(errors.PathNotChild, rp, dtmp.rstrip('\\/') + '2/foo')

        # now operations based on relpath of files in current

        # directory, or nearby

        os.chdir(dtmp)

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

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

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

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

        self.assertRaises(errors.PathNotChild, rp, '../foo')