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'''
Task Coach - Your friendly task manager
Copyright (C) 2004-2014 Task Coach developers <developers@taskcoach.org>
Task Coach 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 3 of the License, or
(at your option) any later version.
Task Coach 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, see <http://www.gnu.org/licenses/>.
'''
import test
from unittests import asserts
from taskcoachlib import patterns
class HistoryTest(test.TestCase, asserts.CommandAssertsMixin):
def setUp(self):
self.commands = patterns.CommandHistory()
self.command = patterns.Command()
def tearDown(self):
self.commands.clear()
def testSingleton(self):
another = patterns.CommandHistory()
self.failUnless(self.commands is another)
def testClear(self):
self.command.do()
self.commands.clear()
self.assertHistoryAndFuture([], [])
def testDo(self):
self.command.do()
self.assertHistoryAndFuture([self.command], [])
def testUndo(self):
self.command.do()
self.commands.undo()
self.assertHistoryAndFuture([], [self.command])
def testRedo(self):
self.command.do()
self.commands.undo()
self.commands.redo()
self.assertHistoryAndFuture([self.command], [])
def testUndoStr_EmptyHistory(self):
self.assertEqual('Undo', self.commands.undostr())
def testUndoStr(self):
self.command.do()
self.assertEqual('Undo %s'%self.command, self.commands.undostr())
def testRedoStr_EmptyFuture(self):
self.assertEqual('Redo', self.commands.redostr())
def testRedoStr(self):
self.command.do()
self.commands.undo()
self.assertEqual('Redo %s'%self.command, self.commands.redostr())
def testHasHistory(self):
self.failIf(self.commands.hasHistory())
self.command.do()
self.failUnless(self.commands.hasHistory())
self.commands.undo()
self.failIf(self.commands.hasHistory())
def testHasFuture(self):
self.command.do()
self.failIf(self.commands.hasFuture())
self.commands.undo()
self.failUnless(self.commands.hasFuture())
self.commands.redo()
self.failIf(self.commands.hasFuture())
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