~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2007 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

"""OS Lock implementation tests for bzr.

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

"""

from copy import deepcopy

from bzrlib import (

    lock,

    tests,

    )

class TestCaseWithLock(tests.TestCaseWithTransport):

    write_lock = None

    read_lock = None

class LockTestProviderAdapter(object):

    """A tool to generate a suite testing multiple lock formats at once.

    This is done by copying the test once for each lock and injecting the

    read_lock and write_lock classes.

    They are also given a new test id.

    """

    def __init__(self, lock_classes):

        self._lock_classes = lock_classes

    def _clone_test(self, test, write_lock, read_lock, variation):

        """Clone test for adaption."""

        new_test = deepcopy(test)

        new_test.write_lock = write_lock

        new_test.read_lock = read_lock

        def make_new_test_id():

            new_id = "%s(%s)" % (test.id(), variation)

            return lambda: new_id

        new_test.id = make_new_test_id()

        return new_test

    def adapt(self, test):

        result = tests.TestSuite()

        for name, write_lock, read_lock in self._lock_classes:

            new_test = self._clone_test(test, write_lock, read_lock, name)

            result.addTest(new_test)

        return result

def test_suite():

    result = tests.TestSuite()

    test_lock_implementations = [

        'bzrlib.tests.per_lock.test_lock',

        'bzrlib.tests.per_lock.test_temporary_write_lock',

        ]

    adapter = LockTestProviderAdapter(lock._lock_classes)

    loader = tests.TestLoader()

    tests.adapt_modules(test_lock_implementations, adapter, loader, result)

    return result