~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006-2010 Canonical Ltd

# Authors: Robert Collins <robert.collins@canonical.com>

#          and others

#

# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Branch implementation tests for bzr.

These test the conformance of all the branch variations to the expected API.

Specific tests for individual formats are in the `tests/test_branch` file

rather than in `tests/per_branch/*.py`.

"""

from bzrlib import (

    errors,

    tests,

    )

from bzrlib.branch import format_registry

from bzrlib.remote import RemoteBranchFormat

from bzrlib.tests import test_server

from bzrlib.tests.per_controldir.test_controldir import TestCaseWithControlDir

from bzrlib.transport import memory

def make_scenarios(transport_server, transport_readonly_server,

    formats, vfs_transport_factory=None, name_suffix=''):

    """Transform the input formats to a list of scenarios.

    :param formats: A list of (branch_format, bzrdir_format).

    """

    result = []

    for branch_format, bzrdir_format in formats:

        # some branches don't have separate format objects.

        # so we have a conditional here to handle them.

        scenario_name = getattr(branch_format, '__name__',

            branch_format.__class__.__name__)

        scenario_name += name_suffix

        scenario = (scenario_name, {

            "transport_server":transport_server,

            "transport_readonly_server":transport_readonly_server,

            "bzrdir_format":bzrdir_format,

            "branch_format":branch_format,

                })

        result.append(scenario)

    return result

class TestCaseWithBranch(TestCaseWithControlDir):

    """This helper will be parameterised in each per_branch test."""

    def setUp(self):

        super(TestCaseWithBranch, self).setUp()

        self.branch = None

    def get_branch(self):

        if self.branch is None:

            self.branch = self.make_branch('abranch')

        return self.branch

    def make_branch(self, relpath, format=None):

        if format is not None:

            return TestCaseWithControlDir.make_branch(self, relpath, format)

        repo = self.make_repository(relpath)

        # fixme RBC 20060210 this isnt necessarily a fixable thing,

        # Skipped is the wrong exception to raise.

        try:

            branch = self.branch_format.initialize(repo.bzrdir)

        except errors.UninitializableFormat:

            raise tests.TestSkipped('Uninitializable branch format')

        if (branch._format.supports_set_append_revisions_only() and

            branch.get_append_revisions_only()):

            branch.set_append_revisions_only(False)

        return branch

    def make_branch_builder(self, relpath, format=None):

        if format is None:

            format = self.branch_format._matchingbzrdir

        return super(TestCaseWithBranch, self).make_branch_builder(

            relpath, format=format)

    def make_repository(self, relpath, shared=False, format=None):

        made_control = self.make_bzrdir(relpath, format=format)

        return made_control.create_repository(shared=shared)

    def create_tree_with_merge(self):

        """Create a branch with a simple ancestry.

        The graph should look like:

            digraph H {

                "rev-1" -> "rev-2" -> "rev-3";

                "rev-1" -> "rev-1.1.1" -> "rev-3";

            }

        Or in ASCII:

            1

            |\

            2 1.1.1

            |/

            3

        """

        tree = self.make_branch_and_memory_tree('tree')

        tree.lock_write()

        try:

            tree.add('')

            tree.commit('first', rev_id='rev-1')

            tree.commit('second', rev_id='rev-1.1.1')

            # Uncommit that last commit and switch to the other line

            tree.branch.set_last_revision_info(1, 'rev-1')

            tree.set_parent_ids(['rev-1'])

            tree.commit('alt-second', rev_id='rev-2')

            tree.set_parent_ids(['rev-2', 'rev-1.1.1'])

            tree.commit('third', rev_id='rev-3')

        finally:

            tree.unlock()

        return tree

def branch_scenarios():

    """ """

    # Generate a list of branch formats and their associated bzrdir formats to

    # use.

    combinations = [(format, format._matchingbzrdir) for format in

         format_registry._get_all()]

    scenarios = make_scenarios(

        # None here will cause the default vfs transport server to be used.

        None,

        # None here will cause a readonly decorator to be created

        # by the TestCaseWithTransport.get_readonly_transport method.

        None,

        combinations)

    # Add RemoteBranch tests, which need a special server.

    remote_branch_format = RemoteBranchFormat()

    scenarios.extend(make_scenarios(

        test_server.SmartTCPServer_for_testing,

        test_server.ReadonlySmartTCPServer_for_testing,

        [(remote_branch_format, remote_branch_format._matchingbzrdir)],

        memory.MemoryServer,

        name_suffix='-default'))

    # Also add tests for RemoteBranch with HPSS protocol v2 (i.e. bzr <1.6)

    # server.

    scenarios.extend(make_scenarios(

        test_server.SmartTCPServer_for_testing_v2_only,

        test_server.ReadonlySmartTCPServer_for_testing_v2_only,

        [(remote_branch_format, remote_branch_format._matchingbzrdir)],

        memory.MemoryServer,

        name_suffix='-v2'))

    return scenarios

def load_tests(standard_tests, module, loader):

    per_branch_mod_names = [

        'bound_sftp',

        'branch',

        'break_lock',

        'check',

        'config',

        'create_checkout',

        'create_clone',

        'commit',

        'dotted_revno_to_revision_id',

        'get_revision_id_to_revno_map',

        'hooks',

        'http',

        'iter_merge_sorted_revisions',

        'last_revision_info',

        'locking',

        'parent',

        'permissions',

        'pull',

        'push',

        'reconcile',

        'revision_history',

        'revision_id_to_dotted_revno',

        'revision_id_to_revno',

        'sprout',

        'stacking',

        'tags',

        'uncommit',

        'update',

        ]

    sub_tests = loader.loadTestsFromModuleNames(

        ['bzrlib.tests.per_branch.test_' + name

         for name in per_branch_mod_names])

    return tests.multiply_tests(sub_tests, branch_scenarios(), standard_tests)