~bzr-pqm/bzr/bzr.dev

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# 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])