/brz/remove-bazaar

# Copyright (C) 2006 Canonical Ltd

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

#

# 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

from cStringIO import StringIO

import os

import bzrlib

import bzrlib.errors as errors

from bzrlib.tests import TestNotApplicable

from bzrlib.tests.workingtree_implementations import TestCaseWithWorkingTree

class TestBreakLock(TestCaseWithWorkingTree):

    def setUp(self):

        super(TestBreakLock, self).setUp()

        self.unused_workingtree = self.make_branch_and_tree('.')

        self.workingtree = self.unused_workingtree.bzrdir.open_workingtree()

        # we want a UI factory that accepts canned input for the tests:

        # while SilentUIFactory still accepts stdin, we need to customise

        # ours

        self.old_factory = bzrlib.ui.ui_factory

        self.addCleanup(self.restoreFactory)

        bzrlib.ui.ui_factory = bzrlib.ui.SilentUIFactory()

    def restoreFactory(self):

        bzrlib.ui.ui_factory = self.old_factory

    def test_unlocked(self):

        # break lock when nothing is locked should just return

        try:

            self.workingtree.break_lock()

        except NotImplementedError:

            pass

    def test_unlocked_repo_locked(self):

        # break lock on the workingtree should try on the branch even

        # if the workingtree isn't locked - and the easiest way

        # to see if that happened is to lock the repo.

        self.workingtree.branch.repository.lock_write()

        stdin = StringIO("y\n")

        bzrlib.ui.ui_factory.stdin = stdin

        try:

            self.unused_workingtree.break_lock()

        except NotImplementedError:

            # workingtree does not support break_lock

            self.workingtree.branch.repository.unlock()

            return

        remaining = stdin.read()

        if remaining == 'y\n':

            raise TestNotApplicable("repository does not physically lock.")

        self.assertRaises(errors.LockBroken,

            self.workingtree.branch.repository.unlock)

    def test_locked(self):

        # break_lock when locked should

        self.workingtree.lock_write()

        bzrlib.ui.ui_factory.stdin = StringIO("y\ny\ny\n")

        try:

            self.unused_workingtree.break_lock()

        except (NotImplementedError, errors.LockActive):

            # workingtree does not support break_lock,

            # or does not support breaking a lock held by an alive

            # object/process.

            self.workingtree.unlock()

            return

        self.assertRaises(errors.LockBroken, self.workingtree.unlock)