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tests/test_push.py
 
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# Copyright (C) 2010 Jelmer Vernooij <jelmer@samba.org>
 
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# -*- coding: utf-8 -*-
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""Tests for pushing revisions from Bazaar into Git."""
 
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from ....controldir import (
 
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    format_registry,
 
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    )
 
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from ....repository import (
 
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    InterRepository,
 
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    )
 
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from ....tests import (
 
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    TestCaseWithTransport,
 
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    )
 
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from ..mapping import (
 
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    BzrGitMappingExperimental,
 
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    BzrGitMappingv1,
 
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    )
 
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from ..errors import NoPushSupport
 
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from ..push import (
 
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    InterToGitRepository,
 
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    )
 
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class InterToGitRepositoryTests(TestCaseWithTransport):
 
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    def setUp(self):
 
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        super(InterToGitRepositoryTests, self).setUp()
 
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        self.git_repo = self.make_repository("git",
 
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                format=format_registry.make_controldir("git"))
 
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        self.bzr_repo = self.make_repository("bzr", shared=True)
 
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    def _get_interrepo(self, mapping=None):
 
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        self.bzr_repo.lock_read()
 
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        self.addCleanup(self.bzr_repo.unlock)
 
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        interrepo = InterRepository.get(self.bzr_repo, self.git_repo)
 
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        if mapping is not None:
 
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            interrepo.mapping = mapping
 
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        return interrepo
 
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    def test_instance(self):
 
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        self.assertIsInstance(self._get_interrepo(), InterToGitRepository)
 
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    def test_pointless_fetch_refs_old_mapping(self):
 
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        interrepo = self._get_interrepo(mapping=BzrGitMappingv1())
 
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        self.assertRaises(NoPushSupport, interrepo.fetch_refs, lambda x: {}, lossy=False)
 
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    def test_pointless_fetch_refs(self):
 
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        interrepo = self._get_interrepo(mapping=BzrGitMappingExperimental())
 
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        revidmap, old_refs, new_refs = interrepo.fetch_refs(lambda x: {}, lossy=False)
 
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        self.assertEquals(old_refs, {})
 
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        self.assertEquals(new_refs, {})
 
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    def test_pointless_lossy_fetch_refs(self):
 
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        revidmap, old_refs, new_refs = self._get_interrepo().fetch_refs(lambda x: {}, lossy=True)
 
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        self.assertEquals(old_refs, {})
 
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        self.assertEquals(new_refs, {})
 
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        self.assertEquals(revidmap, {})
 
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    def test_pointless_missing_revisions(self):
 
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        interrepo = self._get_interrepo()
 
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        interrepo.source_store.lock_read()
 
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        self.addCleanup(interrepo.source_store.unlock)
 
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        self.assertEquals([], list(interrepo.missing_revisions([])))
 
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    def test_missing_revisions_unknown_stop_rev(self):
 
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        interrepo = self._get_interrepo()
 
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        interrepo.source_store.lock_read()
 
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        self.addCleanup(interrepo.source_store.unlock)
 
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        self.assertEquals([],
 
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                list(interrepo.missing_revisions([(None, "unknown")])))
 
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    def test_odd_rename(self):
 
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        # Add initial revision to bzr branch.
 
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        branch = self.bzr_repo.controldir.create_branch()
 
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        tree = branch.controldir.create_workingtree()
 
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        self.build_tree(["bzr/bar/", "bzr/bar/foobar"])
 
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        tree.add(["bar", "bar/foobar"])
 
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        tree.commit("initial")
 
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        # Add new directory and perform move in bzr branch.
 
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        self.build_tree(["bzr/baz/"])
 
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        tree.add(["baz"])
 
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        tree.rename_one("bar", "baz/IrcDotNet")
 
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        last_revid = tree.commit("rename")
 
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        # Push bzr branch to git branch.
 
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        def decide(x):
 
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            return { "refs/heads/master": (None, last_revid) }
 
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        interrepo = self._get_interrepo()
 
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        revidmap, old_refs, new_refs = interrepo.fetch_refs(decide, lossy=True)
 
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        gitid = revidmap[last_revid][0]
 
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        store = self.git_repo._git.object_store
 
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        commit = store[gitid]
 
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        tree = store[commit.tree]
 
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        tree.check()
 
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        self.assertTrue(tree["baz"][1] in store)
 
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        baz = store[tree["baz"][1]]
 
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        baz.check()
 
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        ircdotnet = store[baz["IrcDotNet"][1]]
 
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        ircdotnet.check()
 
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        foobar = store[ircdotnet["foobar"][1]]
 
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        foobar.check()