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# Copyright (C) 2006-2012, 2016 Canonical Ltd
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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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# 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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# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Tests for the Branch facility that are not interface tests.
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For interface tests see `tests/per_branch/*.py`.
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For concrete class tests see this file, and for meta-branch tests
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from io import StringIO
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branch as _mod_branch,
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branch as _mod_bzrbranch,
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from ..bzr.fullhistory import (
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class TestErrors(tests.TestCase):
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def test_unstackable_branch_format(self):
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error = _mod_branch.UnstackableBranchFormat(format, url)
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"The branch '/foo'(foo) is not a stackable format. "
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"You will need to upgrade the branch to permit branch stacking.",
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class TestDefaultFormat(tests.TestCase):
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def test_default_format(self):
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# update this if you change the default branch format
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self.assertIsInstance(_mod_branch.format_registry.get_default(),
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_mod_bzrbranch.BzrBranchFormat7)
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def test_default_format_is_same_as_bzrdir_default(self):
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# XXX: it might be nice if there was only one place the default was
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# set, but at the moment that's not true -- mbp 20070814 --
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# https://bugs.launchpad.net/bzr/+bug/132376
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_mod_branch.format_registry.get_default(),
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bzrdir.BzrDirFormat.get_default_format().get_branch_format())
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def test_get_set_default_format(self):
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# set the format and then set it back again
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old_format = _mod_branch.format_registry.get_default()
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_mod_branch.format_registry.set_default(
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# the default branch format is used by the meta dir format
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# which is not the default bzrdir format at this point
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dir = bzrdir.BzrDirMetaFormat1().initialize('memory:///')
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result = dir.create_branch()
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self.assertEqual(result, 'A branch')
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_mod_branch.format_registry.set_default(old_format)
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self.assertEqual(old_format,
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_mod_branch.format_registry.get_default())
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class TestBranchFormat5(tests.TestCaseWithTransport):
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"""Tests specific to branch format 5"""
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def test_branch_format_5_uses_lockdir(self):
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bdir = bzrdir.BzrDirMetaFormat1().initialize(url)
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bdir.create_repository()
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branch = BzrBranchFormat5().initialize(bdir)
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t = self.get_transport()
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self.log("branch instance is %r" % branch)
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self.assertTrue(isinstance(branch, BzrBranch5))
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self.assertIsDirectory('.', t)
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self.assertIsDirectory('.bzr/branch', t)
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self.assertIsDirectory('.bzr/branch/lock', t)
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self.addCleanup(branch.unlock)
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self.assertIsDirectory('.bzr/branch/lock/held', t)
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def test_set_push_location(self):
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conf = config.LocationConfig.from_string('# comment\n', '.', save=True)
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branch = self.make_branch('.', format='knit')
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branch.set_push_location('foo')
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local_path = urlutils.local_path_from_url(branch.base[:-1])
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self.assertFileEqual(b"# comment\n"
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b"push_location = foo\n"
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b"push_location:policy = norecurse\n" % local_path.encode(
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bedding.locations_config_path())
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# TODO RBC 20051029 test getting a push location from a branch in a
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# recursive section - that is, it appends the branch name.
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class SampleBranchFormat(_mod_bzrbranch.BranchFormatMetadir):
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this format is initializable, unsupported to aid in testing the
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open and open_downlevel routines.
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def get_format_string(cls):
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"""See BzrBranchFormat.get_format_string()."""
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return b"Sample branch format."
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def initialize(self, a_controldir, name=None, repository=None,
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append_revisions_only=None):
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"""Format 4 branches cannot be created."""
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t = a_controldir.get_branch_transport(self, name=name)
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t.put_bytes('format', self.get_format_string())
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def is_supported(self):
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def open(self, transport, name=None, _found=False, ignore_fallbacks=False,
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possible_transports=None):
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return "opened branch."
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# Demonstrating how lazy loading is often implemented:
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# A constant string is created.
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SampleSupportedBranchFormatString = b"Sample supported branch format."
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# And the format class can then reference the constant to avoid skew.
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class SampleSupportedBranchFormat(_mod_bzrbranch.BranchFormatMetadir):
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"""A sample supported format."""
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def get_format_string(cls):
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"""See BzrBranchFormat.get_format_string()."""
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return SampleSupportedBranchFormatString
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def initialize(self, a_controldir, name=None, append_revisions_only=None):
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t = a_controldir.get_branch_transport(self, name=name)
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t.put_bytes('format', self.get_format_string())
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def open(self, transport, name=None, _found=False, ignore_fallbacks=False,
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possible_transports=None):
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return "opened supported branch."
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class SampleExtraBranchFormat(_mod_branch.BranchFormat):
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"""A sample format that is not usable in a metadir."""
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def get_format_string(self):
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# This format is not usable in a metadir.
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def network_name(self):
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# Network name always has to be provided.
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def initialize(self, a_controldir, name=None):
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raise NotImplementedError(self.initialize)
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def open(self, transport, name=None, _found=False, ignore_fallbacks=False,
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possible_transports=None):
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raise NotImplementedError(self.open)
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class TestBzrBranchFormat(tests.TestCaseWithTransport):
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"""Tests for the BzrBranchFormat facility."""
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def test_find_format(self):
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# is the right format object found for a branch?
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# create a branch with a few known format objects.
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# this is not quite the same as
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self.build_tree(["foo/", "bar/"])
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def check_format(format, url):
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dir = format._matchingcontroldir.initialize(url)
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dir.create_repository()
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format.initialize(dir)
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found_format = _mod_bzrbranch.BranchFormatMetadir.find_format(dir)
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self.assertIsInstance(found_format, format.__class__)
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check_format(BzrBranchFormat5(), "bar")
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def test_from_string(self):
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self.assertIsInstance(
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SampleBranchFormat.from_string(b"Sample branch format."),
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self.assertRaises(AssertionError,
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SampleBranchFormat.from_string, b"Different branch format.")
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def test_find_format_not_branch(self):
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dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
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self.assertRaises(errors.NotBranchError,
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_mod_bzrbranch.BranchFormatMetadir.find_format,
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def test_find_format_unknown_format(self):
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dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
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SampleBranchFormat().initialize(dir)
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self.assertRaises(errors.UnknownFormatError,
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_mod_bzrbranch.BranchFormatMetadir.find_format,
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def test_find_format_with_features(self):
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tree = self.make_branch_and_tree('.', format='2a')
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tree.branch.update_feature_flags({b"name": b"optional"})
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found_format = _mod_bzrbranch.BranchFormatMetadir.find_format(
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self.assertIsInstance(found_format, _mod_bzrbranch.BranchFormatMetadir)
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self.assertEqual(found_format.features.get(b"name"), b"optional")
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tree.branch.update_feature_flags({b"name": None})
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branch = _mod_branch.Branch.open('.')
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self.assertEqual(branch._format.features, {})
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class TestBranchFormatRegistry(tests.TestCase):
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super(TestBranchFormatRegistry, self).setUp()
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self.registry = _mod_branch.BranchFormatRegistry()
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def test_default(self):
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self.assertIs(None, self.registry.get_default())
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format = SampleBranchFormat()
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self.registry.set_default(format)
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self.assertEqual(format, self.registry.get_default())
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def test_register_unregister_format(self):
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format = SampleBranchFormat()
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self.registry.register(format)
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self.assertEqual(format,
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self.registry.get(b"Sample branch format."))
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self.registry.remove(format)
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self.assertRaises(KeyError, self.registry.get,
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b"Sample branch format.")
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def test_get_all(self):
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format = SampleBranchFormat()
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self.assertEqual([], self.registry._get_all())
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self.registry.register(format)
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self.assertEqual([format], self.registry._get_all())
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def test_register_extra(self):
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format = SampleExtraBranchFormat()
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self.assertEqual([], self.registry._get_all())
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self.registry.register_extra(format)
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self.assertEqual([format], self.registry._get_all())
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def test_register_extra_lazy(self):
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self.assertEqual([], self.registry._get_all())
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self.registry.register_extra_lazy("breezy.tests.test_branch",
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"SampleExtraBranchFormat")
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formats = self.registry._get_all()
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self.assertEqual(1, len(formats))
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self.assertIsInstance(formats[0], SampleExtraBranchFormat)
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class TestBranch67(object):
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"""Common tests for both branch 6 and 7 which are mostly the same."""
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def get_format_name(self):
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raise NotImplementedError(self.get_format_name)
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def get_format_name_subtree(self):
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raise NotImplementedError(self.get_format_name)
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raise NotImplementedError(self.get_class)
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def test_creation(self):
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format = bzrdir.BzrDirMetaFormat1()
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format.set_branch_format(_mod_bzrbranch.BzrBranchFormat6())
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branch = self.make_branch('a', format=format)
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self.assertIsInstance(branch, self.get_class())
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branch = self.make_branch('b', format=self.get_format_name())
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self.assertIsInstance(branch, self.get_class())
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branch = _mod_branch.Branch.open('a')
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self.assertIsInstance(branch, self.get_class())
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def test_layout(self):
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branch = self.make_branch('a', format=self.get_format_name())
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self.assertPathExists('a/.bzr/branch/last-revision')
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self.assertPathDoesNotExist('a/.bzr/branch/revision-history')
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self.assertPathDoesNotExist('a/.bzr/branch/references')
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def test_config(self):
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"""Ensure that all configuration data is stored in the branch"""
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branch = self.make_branch('a', format=self.get_format_name())
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branch.set_parent('http://example.com')
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self.assertPathDoesNotExist('a/.bzr/branch/parent')
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self.assertEqual('http://example.com', branch.get_parent())
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branch.set_push_location('sftp://example.com')
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conf = branch.get_config_stack()
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self.assertEqual('sftp://example.com', conf.get('push_location'))
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branch.set_bound_location('ftp://example.com')
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self.assertPathDoesNotExist('a/.bzr/branch/bound')
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self.assertEqual('ftp://example.com', branch.get_bound_location())
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def do_checkout_test(self, lightweight):
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tree = self.make_branch_and_tree('source',
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format=self.get_format_name_subtree())
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subtree = self.make_branch_and_tree('source/subtree',
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format=self.get_format_name_subtree())
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subsubtree = self.make_branch_and_tree('source/subtree/subsubtree',
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format=self.get_format_name_subtree())
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self.build_tree(['source/subtree/file',
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'source/subtree/subsubtree/file'])
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subsubtree.add('file')
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subtree.add_reference(subsubtree)
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subtree.set_reference_info('subsubtree', subsubtree.branch.user_url)
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tree.add_reference(subtree)
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tree.set_reference_info('subtree', subtree.branch.user_url)
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tree.commit('a revision')
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subtree.commit('a subtree file')
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subsubtree.commit('a subsubtree file')
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tree.branch.create_checkout('target', lightweight=lightweight)
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self.assertPathExists('target')
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self.assertPathExists('target/subtree')
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self.assertPathExists('target/subtree/file')
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self.assertPathExists('target/subtree/subsubtree/file')
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subbranch = _mod_branch.Branch.open('target/subtree/subsubtree')
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self.assertEndsWith(subbranch.base, 'source/subtree/subsubtree/')
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self.assertEndsWith(subbranch.base, 'target/subtree/subsubtree/')
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def test_checkout_with_references(self):
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self.do_checkout_test(lightweight=False)
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def test_light_checkout_with_references(self):
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self.do_checkout_test(lightweight=True)
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class TestBranch6(TestBranch67, tests.TestCaseWithTransport):
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return _mod_bzrbranch.BzrBranch6
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def get_format_name(self):
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return "dirstate-tags"
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def get_format_name_subtree(self):
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return "dirstate-with-subtree"
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def test_set_stacked_on_url_errors(self):
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branch = self.make_branch('a', format=self.get_format_name())
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self.assertRaises(_mod_branch.UnstackableBranchFormat,
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branch.set_stacked_on_url, None)
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def test_default_stacked_location(self):
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branch = self.make_branch('a', format=self.get_format_name())
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self.assertRaises(_mod_branch.UnstackableBranchFormat,
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branch.get_stacked_on_url)
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class TestBranch7(TestBranch67, tests.TestCaseWithTransport):
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return _mod_bzrbranch.BzrBranch7
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def get_format_name(self):
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def get_format_name_subtree(self):
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return "development-subtree"
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def test_set_stacked_on_url_unstackable_repo(self):
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repo = self.make_repository('a', format='dirstate-tags')
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control = repo.controldir
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branch = _mod_bzrbranch.BzrBranchFormat7().initialize(control)
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target = self.make_branch('b')
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self.assertRaises(errors.UnstackableRepositoryFormat,
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branch.set_stacked_on_url, target.base)
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def test_clone_stacked_on_unstackable_repo(self):
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repo = self.make_repository('a', format='dirstate-tags')
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control = repo.controldir
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branch = _mod_bzrbranch.BzrBranchFormat7().initialize(control)
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# Calling clone should not raise UnstackableRepositoryFormat.
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cloned_bzrdir = control.clone('cloned')
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def _test_default_stacked_location(self):
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branch = self.make_branch('a', format=self.get_format_name())
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self.assertRaises(errors.NotStacked, branch.get_stacked_on_url)
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def test_stack_and_unstack(self):
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branch = self.make_branch('a', format=self.get_format_name())
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target = self.make_branch_and_tree('b', format=self.get_format_name())
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branch.set_stacked_on_url(target.branch.base)
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self.assertEqual(target.branch.base, branch.get_stacked_on_url())
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revid = target.commit('foo')
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self.assertTrue(branch.repository.has_revision(revid))
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branch.set_stacked_on_url(None)
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self.assertRaises(errors.NotStacked, branch.get_stacked_on_url)
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self.assertFalse(branch.repository.has_revision(revid))
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def test_open_opens_stacked_reference(self):
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branch = self.make_branch('a', format=self.get_format_name())
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target = self.make_branch_and_tree('b', format=self.get_format_name())
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branch.set_stacked_on_url(target.branch.base)
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branch = branch.controldir.open_branch()
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revid = target.commit('foo')
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self.assertTrue(branch.repository.has_revision(revid))
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class BzrBranch8(tests.TestCaseWithTransport):
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def make_branch(self, location, format=None):
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format = controldir.format_registry.make_controldir('1.9')
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format.set_branch_format(_mod_bzrbranch.BzrBranchFormat8())
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return tests.TestCaseWithTransport.make_branch(
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self, location, format=format)
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def create_branch_with_reference(self):
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branch = self.make_branch('branch')
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branch._set_all_reference_info({'path': ('location', b'file-id')})
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def instrument_branch(branch, gets):
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old_get = branch._transport.get
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def get(*args, **kwargs):
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gets.append((args, kwargs))
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return old_get(*args, **kwargs)
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branch._transport.get = get
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def test_reference_info_caching_read_locked(self):
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branch = self.create_branch_with_reference()
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self.addCleanup(branch.unlock)
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self.instrument_branch(branch, gets)
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branch.get_reference_info('path')
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branch.get_reference_info('path')
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self.assertEqual(1, len(gets))
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def test_reference_info_caching_read_unlocked(self):
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branch = self.create_branch_with_reference()
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self.instrument_branch(branch, gets)
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branch.get_reference_info('path')
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branch.get_reference_info('path')
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self.assertEqual(2, len(gets))
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def test_reference_info_caching_write_locked(self):
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branch = self.make_branch('branch')
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self.instrument_branch(branch, gets)
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self.addCleanup(branch.unlock)
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branch._set_all_reference_info({'path2': ('location2', b'file-id')})
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location, file_id = branch.get_reference_info('path2')
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self.assertEqual(0, len(gets))
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self.assertEqual(b'file-id', file_id)
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self.assertEqual('location2', location)
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def test_reference_info_caches_cleared(self):
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branch = self.make_branch('branch')
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with branch.lock_write():
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branch.set_reference_info(b'file-id', 'location2', 'path2')
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doppelganger = _mod_branch.Branch.open('branch')
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doppelganger.set_reference_info(b'file-id', 'location3', 'path3')
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self.assertEqual(('location3', 'path3'),
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branch.get_reference_info(b'file-id'))
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def _recordParentMapCalls(self, repo):
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self._parent_map_calls = []
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orig_get_parent_map = repo.revisions.get_parent_map
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def get_parent_map(q):
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self._parent_map_calls.extend([e[0] for e in q])
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return orig_get_parent_map(q)
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repo.revisions.get_parent_map = get_parent_map
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class TestBranchReference(tests.TestCaseWithTransport):
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"""Tests for the branch reference facility."""
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def test_create_open_reference(self):
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bzrdirformat = bzrdir.BzrDirMetaFormat1()
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t = self.get_transport()
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dir = bzrdirformat.initialize(self.get_url('repo'))
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dir.create_repository()
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target_branch = dir.create_branch()
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branch_dir = bzrdirformat.initialize(self.get_url('branch'))
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made_branch = _mod_bzrbranch.BranchReferenceFormat().initialize(
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branch_dir, target_branch=target_branch)
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self.assertEqual(made_branch.base, target_branch.base)
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opened_branch = branch_dir.open_branch()
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self.assertEqual(opened_branch.base, target_branch.base)
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def test_get_reference(self):
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"""For a BranchReference, get_reference should return the location."""
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branch = self.make_branch('target')
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checkout = branch.create_checkout('checkout', lightweight=True)
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reference_url = branch.controldir.root_transport.abspath('') + '/'
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# if the api for create_checkout changes to return different checkout types
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# then this file read will fail.
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self.assertFileEqual(reference_url.encode('utf-8'),
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'checkout/.bzr/branch/location')
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self.assertEqual(reference_url,
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_mod_bzrbranch.BranchReferenceFormat().get_reference(checkout.controldir))
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class TestHooks(tests.TestCaseWithTransport):
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def test_constructor(self):
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"""Check that creating a BranchHooks instance has the right defaults."""
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hooks = _mod_branch.BranchHooks()
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self.assertTrue("post_push" in hooks, "post_push not in %s" % hooks)
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self.assertTrue("post_commit" in hooks,
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"post_commit not in %s" % hooks)
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self.assertTrue("pre_commit" in hooks, "pre_commit not in %s" % hooks)
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self.assertTrue("post_pull" in hooks, "post_pull not in %s" % hooks)
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self.assertTrue("post_uncommit" in hooks,
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"post_uncommit not in %s" % hooks)
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self.assertTrue("post_change_branch_tip" in hooks,
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"post_change_branch_tip not in %s" % hooks)
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self.assertTrue("post_branch_init" in hooks,
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"post_branch_init not in %s" % hooks)
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self.assertTrue("post_switch" in hooks,
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"post_switch not in %s" % hooks)
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def test_installed_hooks_are_BranchHooks(self):
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"""The installed hooks object should be a BranchHooks."""
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# the installed hooks are saved in self._preserved_hooks.
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self.assertIsInstance(self._preserved_hooks[_mod_branch.Branch][1],
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_mod_branch.BranchHooks)
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def test_post_branch_init_hook(self):
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_mod_branch.Branch.hooks.install_named_hook('post_branch_init',
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self.assertLength(0, calls)
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branch = self.make_branch('a')
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self.assertLength(1, calls)
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self.assertIsInstance(params, _mod_branch.BranchInitHookParams)
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self.assertTrue(hasattr(params, 'controldir'))
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self.assertTrue(hasattr(params, 'branch'))
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def test_post_branch_init_hook_repr(self):
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_mod_branch.Branch.hooks.install_named_hook('post_branch_init',
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lambda params: param_reprs.append(repr(params)), None)
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branch = self.make_branch('a')
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self.assertLength(1, param_reprs)
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param_repr = param_reprs[0]
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self.assertStartsWith(param_repr, '<BranchInitHookParams of ')
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def test_post_switch_hook(self):
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from .. import switch
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_mod_branch.Branch.hooks.install_named_hook('post_switch',
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tree = self.make_branch_and_tree('branch-1')
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self.build_tree(['branch-1/file-1'])
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to_branch = tree.controldir.sprout('branch-2').open_branch()
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self.build_tree(['branch-1/file-2'])
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tree.remove('file-1')
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checkout = tree.branch.create_checkout('checkout')
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self.assertLength(0, calls)
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switch.switch(checkout.controldir, to_branch)
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self.assertLength(1, calls)
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self.assertIsInstance(params, _mod_branch.SwitchHookParams)
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self.assertTrue(hasattr(params, 'to_branch'))
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self.assertTrue(hasattr(params, 'revision_id'))
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class TestBranchOptions(tests.TestCaseWithTransport):
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super(TestBranchOptions, self).setUp()
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self.branch = self.make_branch('.')
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self.config_stack = self.branch.get_config_stack()
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def check_append_revisions_only(self, expected_value, value=None):
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"""Set append_revisions_only in config and check its interpretation."""
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if value is not None:
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self.config_stack.set('append_revisions_only', value)
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self.assertEqual(expected_value,
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self.branch.get_append_revisions_only())
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def test_valid_append_revisions_only(self):
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self.assertEqual(None,
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self.config_stack.get('append_revisions_only'))
628
self.check_append_revisions_only(None)
629
self.check_append_revisions_only(False, 'False')
630
self.check_append_revisions_only(True, 'True')
631
# The following values will cause compatibility problems on projects
632
# using older bzr versions (<2.2) but are accepted
633
self.check_append_revisions_only(False, 'false')
634
self.check_append_revisions_only(True, 'true')
636
def test_invalid_append_revisions_only(self):
637
"""Ensure warning is noted on invalid settings"""
641
self.warnings.append(args[0] % args[1:])
642
self.overrideAttr(trace, 'warning', warning)
643
self.check_append_revisions_only(None, 'not-a-bool')
644
self.assertLength(1, self.warnings)
646
'Value "not-a-bool" is not valid for "append_revisions_only"',
649
def test_use_fresh_values(self):
650
copy = _mod_branch.Branch.open(self.branch.base)
653
copy.get_config_stack().set('foo', 'bar')
656
self.assertFalse(self.branch.is_locked())
657
# Since the branch is locked, the option value won't be saved on disk
658
# so trying to access the config of locked branch via another older
659
# non-locked branch object pointing to the same branch is not supported
660
self.assertEqual(None, self.branch.get_config_stack().get('foo'))
661
# Using a newly created branch object works as expected
662
fresh = _mod_branch.Branch.open(self.branch.base)
663
self.assertEqual('bar', fresh.get_config_stack().get('foo'))
665
def test_set_from_config_get_from_config_stack(self):
666
self.branch.lock_write()
667
self.addCleanup(self.branch.unlock)
668
self.branch.get_config().set_user_option('foo', 'bar')
669
result = self.branch.get_config_stack().get('foo')
670
# https://bugs.launchpad.net/bzr/+bug/948344
671
self.expectFailure('BranchStack uses cache after set_user_option',
672
self.assertEqual, 'bar', result)
674
def test_set_from_config_stack_get_from_config(self):
675
self.branch.lock_write()
676
self.addCleanup(self.branch.unlock)
677
self.branch.get_config_stack().set('foo', 'bar')
678
# Since the branch is locked, the option value won't be saved on disk
679
# so mixing get() and get_user_option() is broken by design.
680
self.assertEqual(None,
681
self.branch.get_config().get_user_option('foo'))
683
def test_set_delays_write_when_branch_is_locked(self):
684
self.branch.lock_write()
685
self.addCleanup(self.branch.unlock)
686
self.branch.get_config_stack().set('foo', 'bar')
687
copy = _mod_branch.Branch.open(self.branch.base)
688
result = copy.get_config_stack().get('foo')
689
# Accessing from a different branch object is like accessing from a
690
# different process: the option has not been saved yet and the new
691
# value cannot be seen.
692
self.assertIs(None, result)
695
class TestPullResult(tests.TestCase):
697
def test_report_changed(self):
698
r = _mod_branch.PullResult()
699
r.old_revid = b"old-revid"
701
r.new_revid = b"new-revid"
705
self.assertEqual("Now on revision 20.\n", f.getvalue())
707
def test_report_unchanged(self):
708
r = _mod_branch.PullResult()
709
r.old_revid = b"same-revid"
710
r.new_revid = b"same-revid"
713
self.assertEqual("No revisions or tags to pull.\n", f.getvalue())