~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

import bzrlib.errors

from bzrlib.selftest.testrevision import make_branches

from bzrlib.trace import mutter

from bzrlib.branch import Branch, find_branch

import gzip

import sys

import os

from bzrlib.selftest.HTTPTestUtil import TestCaseWithWebserver

class TestFetch(TestCaseWithWebserver):

    def runTest(self):

        from bzrlib.fetch import greedy_fetch

        from bzrlib.selftest.testfetch import has_revision

        def new_branch(name):

            os.mkdir(name)

            return Branch.initialize(name)

        #highest indices a: 5, b: 7

        br_a, br_b = make_branches()

        # unpack one of br_a's revision files to test .gz fallbacks

        to_unzip = br_a.revision_history()[-1]

        to_unzip_source = gzip.open(os.path.join(br_a.base, '.bzr', 

                                                  'revision-store',

                                                  to_unzip + '.gz'))

        content = to_unzip_source.read()

        to_unzip_source.close()

        os.unlink(os.path.join(br_a.base, '.bzr', 'revision-store',

                               to_unzip + '.gz'))

        to_unzip_output = open(os.path.join(br_a.base, '.bzr', 

                                             'revision-store', to_unzip), 'wb')

        to_unzip_output.write(content)

        to_unzip_output.close()

        import pdb;pdb.set_trace()

        br_rem = Branch.open(self.get_remote_url(br_a.base))

        assert not has_revision(br_b, br_rem.revision_history()[3])

        assert has_revision(br_b, br_rem.revision_history()[2])

        assert len(br_b.revision_history()) == 7

        assert greedy_fetch(br_b, br_rem, br_rem.revision_history()[2])[0] == 0

        # greedy_fetch is not supposed to alter the revision history

        assert len(br_b.revision_history()) == 7

        assert not has_revision(br_b, br_rem.revision_history()[3])

        assert len(br_b.revision_history()) == 7

        assert greedy_fetch(br_b, br_rem, br_rem.revision_history()[3])[0] == 1

        assert has_revision(br_b, br_a.revision_history()[3])

        assert not has_revision(br_rem, br_b.revision_history()[3])

        assert not has_revision(br_rem, br_b.revision_history()[4])

        # When a non-branch ancestor is missing, it should be a failure, not

        # exception

        br_a4 = new_branch('br_a4')

        count, failures = greedy_fetch(br_a4, br_rem)

        assert count == 6

        assert failures == set((br_b.revision_history()[4],

                                br_b.revision_history()[5])) 

        assert greedy_fetch(br_a, br_b)[0] == 4

        assert has_revision(br_a, br_b.revision_history()[3])

        assert has_revision(br_a, br_b.revision_history()[4])

        br_b2 = new_branch('br_b2')

        assert greedy_fetch(br_b2, br_b)[0] == 7

        assert has_revision(br_b2, br_b.revision_history()[4])

        assert has_revision(br_b2, br_a.revision_history()[2])

        assert not has_revision(br_b2, br_a.revision_history()[3])

        br_a2 = new_branch('br_a2')

        assert greedy_fetch(br_a2, br_rem)[0] == 9

        assert has_revision(br_a2, br_b.revision_history()[4])

        assert has_revision(br_a2, br_a.revision_history()[3])