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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2008-12-12 01:24:50 UTC
  • mfrom: (3882.4.2 doc-hacking)
  • Revision ID: pqm@pqm.ubuntu.com-20081212012450-3gw576prpztxziib
(mbp) Developer documentation about when to add new exception classes

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bzrlib/tests/test_foreign.py
 
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# Copyright (C) 2008 Canonical Ltd
 
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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 foreign VCS utility code."""
 
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from bzrlib import errors, foreign
 
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from bzrlib.revision import Revision
 
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from bzrlib.tests import TestCase
 
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class DummyForeignVcsMapping(foreign.VcsMapping):
 
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    """A simple mapping for the dummy Foreign VCS, for use with testing."""
 
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    def __eq__(self, other):
 
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        return type(self) == type(other)
 
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    def show_foreign_revid(self, foreign_revid):
 
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        return { "dummy ding": "%s/%s\\%s" % foreign_revid }
 
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    def revision_id_bzr_to_foreign(self, bzr_revid):
 
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        return tuple(bzr_revid[len("dummy-v1:"):].split("-")), self
 
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    def revision_id_foreign_to_bzr(self, foreign_revid):
 
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        return "dummy-v1:%s-%s-%s" % foreign_revid
 
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class DummyForeignVcsMappingRegistry(foreign.VcsMappingRegistry):
 
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    def revision_id_bzr_to_foreign(self, revid):
 
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        if not revid.startswith("dummy-"):
 
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            raise errors.InvalidRevisionId(revid, None)
 
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        mapping_version = revid[len("dummy-"):len("dummy-vx")]
 
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        mapping = self.get(mapping_version)
 
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        return mapping.revision_id_bzr_to_foreign(revid)
 
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class DummyForeignVcs(foreign.ForeignVcs):
 
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    """A dummy Foreign VCS, for use with testing.
 
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    It has revision ids that are a tuple with three strings.
 
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    """
 
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    def __init__(self):
 
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        self.mapping_registry = DummyForeignVcsMappingRegistry()
 
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        self.mapping_registry.register("v1", DummyForeignVcsMapping(), 
 
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                                       "Version 1")
 
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class ForeignVcsRegistryTests(TestCase):
 
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    def test_parse_revision_id_no_dash(self):       
 
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        reg = foreign.ForeignVcsRegistry()
 
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        self.assertRaises(errors.InvalidRevisionId, 
 
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                          reg.parse_revision_id, "invalid")
 
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    def test_parse_revision_id_unknown_mapping(self):       
 
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        reg = foreign.ForeignVcsRegistry()
 
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        self.assertRaises(errors.InvalidRevisionId, 
 
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                          reg.parse_revision_id, "unknown-foreignrevid")
 
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    def test_parse_revision_id(self):
 
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        reg = foreign.ForeignVcsRegistry()
 
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        reg.register("dummy", DummyForeignVcs(), "Dummy VCS")
 
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        self.assertEquals((("some", "foreign", "revid"), DummyForeignVcsMapping()),
 
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                          reg.parse_revision_id("dummy-v1:some-foreign-revid"))
 
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class ForeignRevisionTests(TestCase):
 
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    """Tests for the ForeignRevision class."""
 
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    def test_create(self):
 
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        mapp = DummyForeignVcsMapping()
 
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        rev = foreign.ForeignRevision(("a", "foreign", "revid"), 
 
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                                      mapp, "roundtripped-revid")
 
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        self.assertEquals("", rev.inventory_sha1)
 
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        self.assertEquals(("a", "foreign", "revid"), rev.foreign_revid)
 
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        self.assertEquals(mapp, rev.mapping)
 
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class ShowForeignPropertiesTests(TestCase):
 
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    """Tests for the show_foreign_properties() function."""
 
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    def setUp(self):
 
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        super(ShowForeignPropertiesTests, self).setUp()
 
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        foreign.foreign_vcs_registry.register("dummy", 
 
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            DummyForeignVcs(), "Dummy VCS")
 
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    def tearDown(self):
 
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        super(ShowForeignPropertiesTests, self).tearDown()
 
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        foreign.foreign_vcs_registry.remove("dummy")
 
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    def test_show_non_foreign(self):
 
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        """Test use with a native (non-foreign) bzr revision."""
 
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        self.assertEquals({}, foreign.show_foreign_properties(Revision("arevid")))
 
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    def test_show_imported(self):
 
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        rev = Revision("dummy-v1:my-foreign-revid")
 
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        self.assertEquals({ "dummy ding": "my/foreign\\revid" },
 
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                          foreign.show_foreign_properties(rev))
 
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    def test_show_direct(self):
 
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        rev = foreign.ForeignRevision(("some", "foreign", "revid"), 
 
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                                      DummyForeignVcsMapping(), 
 
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                                      "roundtrip-revid")
 
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        self.assertEquals({ "dummy ding": "some/foreign\\revid" },
 
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                          foreign.show_foreign_properties(rev))