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# Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Tests for WorkingTree.flush."""
import sys
from bzrlib import errors
from bzrlib.tests import TestSkipped
from bzrlib.tests.per_workingtree import TestCaseWithWorkingTree
class TestFlush(TestCaseWithWorkingTree):
def test_flush_fresh_tree(self):
tree = self.make_branch_and_tree('t1')
tree.lock_write()
try:
tree.flush()
finally:
tree.unlock()
def test_flush_when_inventory_is_modified(self):
if sys.platform == "win32":
raise TestSkipped("don't use oslocks on win32 in unix manner")
# This takes a write lock on the source tree, then opens a second copy
# and tries to grab a read lock. This works on Unix and is a reasonable
# way to detect when the file is actually written to, but it won't work
# (as a test) on Windows. It might be nice to instead stub out the
# functions used to write and that way do both less work and also be
# able to execute on Windows.
self.thisFailsStrictLockCheck()
# when doing a flush the inventory should be written if needed.
# we test that by changing the inventory (using
# _set_inventory for now until add etc have lazy writes of
# the inventory on unlock).
tree = self.make_branch_and_tree('tree')
# prepare for a series of changes that will modify the
# inventory
tree.lock_write()
try:
old_root = tree.get_root_id()
tree.set_root_id('new-root')
# to detect that the inventory is written by flush, we
# first check that it was not written yet.
reference_tree = tree.bzrdir.open_workingtree()
self.assertEqual(old_root, reference_tree.get_root_id())
# now flush the tree which should write the inventory.
tree.flush()
# and check it was written using another reference tree
reference_tree = tree.bzrdir.open_workingtree()
self.assertEqual('new-root', reference_tree.get_root_id())
finally:
tree.unlock()
def test_flush_with_read_lock_fails(self):
"""Flush cannot be used during a read lock."""
tree = self.make_branch_and_tree('t1')
tree.lock_read()
try:
self.assertRaises(errors.NotWriteLocked, tree.flush)
finally:
tree.unlock()
def test_flush_with_no_lock_fails(self):
tree = self.make_branch_and_tree('t1')
self.assertRaises(errors.NotWriteLocked, tree.flush)
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