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# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.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 3 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, see <http://www.gnu.org/licenses/>.
import os.path
import sys
rangerpath = os.path.join(os.path.dirname(__file__), '..')
if sys.path[1] != rangerpath:
sys.path[1:1] = [rangerpath]
from ranger.container import History
from unittest import TestCase, main
import unittest
class Test(TestCase):
def test_history(self):
hist = History(3)
for i in range(6):
hist.add(i)
self.assertEqual([3,4,5], list(hist))
hist.back()
self.assertEqual(4, hist.current())
self.assertEqual([3,4], list(hist._left()))
self.assertEqual(5, hist.top())
hist.back()
self.assertEqual(3, hist.current())
self.assertEqual([3], list(hist._left()))
# no change if current == bottom
self.assertEqual(hist.current(), hist.bottom())
last = hist.current()
hist.back()
self.assertEqual(hist.current(), last)
self.assertEqual(5, hist.top())
hist.forward()
hist.forward()
self.assertEqual(5, hist.current())
self.assertEqual([3,4,5], list(hist._left()))
self.assertEqual(3, hist.bottom())
hist.add(6)
self.assertEqual(4, hist.bottom())
self.assertEqual([4,5,6], list(hist._left()))
hist.back()
hist.fast_forward()
self.assertEqual([4,5,6], list(hist._left()))
hist.back()
hist.back()
hist.fast_forward()
self.assertEqual([4,5,6], list(hist._left()))
hist.back()
hist.back()
hist.back()
hist.fast_forward()
self.assertEqual([4,5,6], list(hist._left()))
hist.back()
hist.back()
hist.back()
hist.back()
hist.fast_forward()
self.assertEqual([4,5,6], list(hist._left()))
if __name__ == '__main__': main()