~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006-2011 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

"""Test read_bundle works properly across various transports."""

import cStringIO

import bzrlib.bundle

from bzrlib.bundle.serializer import write_bundle

import bzrlib.bzrdir

import bzrlib.errors as errors

from bzrlib import tests

from bzrlib.tests.test_transport import TestTransportImplementation

from bzrlib.tests.per_transport import transport_test_permutations

import bzrlib.transport

import bzrlib.urlutils

from bzrlib.tests.scenarios import load_tests_apply_scenarios

load_tests = load_tests_apply_scenarios

def create_bundle_file(test_case):

    test_case.build_tree(['tree/', 'tree/a', 'tree/subdir/'])

    format = bzrlib.bzrdir.BzrDirFormat.get_default_format()

    bzrdir = format.initialize('tree')

    repo = bzrdir.create_repository()

    branch = repo.bzrdir.create_branch()

    wt = branch.bzrdir.create_workingtree()

    wt.add(['a', 'subdir/'])

    wt.commit('new project', rev_id='commit-1')

    out = cStringIO.StringIO()

    rev_ids = write_bundle(wt.branch.repository,

                           wt.get_parent_ids()[0], 'null:', out)

    out.seek(0)

    return out, wt

class TestReadMergeableBundleFromURL(TestTransportImplementation):

    """Test that read_bundle works properly across multiple transports"""

    scenarios = transport_test_permutations()

    def setUp(self):

        super(TestReadMergeableBundleFromURL, self).setUp()

        self.bundle_name = 'test_bundle'

        # read_mergeable_from_url will invoke get_transport which may *not*

        # respect self._transport (i.e. returns a transport that is different

        # from the one we want to test, so we must inject a correct transport

        # into possible_transports first).

        self.possible_transports = [self.get_transport(self.bundle_name)]

        self.overrideEnv('BZR_NO_SMART_VFS', None)

        wt = self.create_test_bundle()

    def read_mergeable_from_url(self, url):

        return bzrlib.bundle.read_mergeable_from_url(

            url, possible_transports=self.possible_transports)

    def get_url(self, relpath=''):

        return bzrlib.urlutils.join(self._server.get_url(), relpath)

    def create_test_bundle(self):

        out, wt = create_bundle_file(self)

        if self.get_transport().is_readonly():

            self.build_tree_contents([(self.bundle_name, out.getvalue())])

        else:

            self.get_transport().put_file(self.bundle_name, out)

            self.log('Put to: %s', self.get_url(self.bundle_name))

        return wt

    def test_read_mergeable_from_url(self):

        info = self.read_mergeable_from_url(

            unicode(self.get_url(self.bundle_name)))

        revision = info.real_revisions[-1]

        self.assertEqual('commit-1', revision.revision_id)

    def test_read_fail(self):

        # Trying to read from a directory, or non-bundle file

        # should fail with NotABundle

        self.assertRaises(errors.NotABundle,

                          self.read_mergeable_from_url, self.get_url('tree'))

        self.assertRaises(errors.NotABundle,

                          self.read_mergeable_from_url, self.get_url('tree/a'))

    def test_read_mergeable_respects_possible_transports(self):

        if not isinstance(self.get_transport(self.bundle_name),

                          bzrlib.transport.ConnectedTransport):

            # There is no point testing transport reuse for not connected

            # transports (the test will fail even).

            raise tests.TestSkipped(

                'Need a ConnectedTransport to test transport reuse')

        url = unicode(self.get_url(self.bundle_name))

        info = self.read_mergeable_from_url(url)

        self.assertEqual(1, len(self.possible_transports))