__init__.py « tests - ranger - mirror of ranger - a simple, vim-like file manager

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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/>. if __name__ == '__main__': from __init__ import init; init() import unittest import gc from ranger.ext.signal_dispatcher import * class TestSignal(unittest.TestCase): def setUp(self): self.sd = SignalDispatcher() def test_signal_register_emit(self): sd = self.sd def poo(sig): self.assert_('works' in sig) self.assertEqual('yes', sig.works) handler = sd.signal_bind('x', poo) sd.signal_emit('x', works='yes') sd.signal_unbind(handler) sd.signal_emit('x') def test_signal_order(self): sd = self.sd lst = [] def addn(n): return lambda _: lst.append(n) sd.signal_bind('x', addn(6)) sd.signal_bind('x', addn(3), priority=1) sd.signal_bind('x', addn(2), priority=1) sd.signal_bind('x', addn(9), priority=0) sd.signal_bind('x', addn(1337), priority=0.7) sd.signal_emit('x') self.assert_(lst.index(3) < lst.index(6)) self.assert_(lst.index(2) < lst.index(6)) self.assert_(lst.index(6) < lst.index(9)) self.assert_(lst.index(1337) < lst.index(6)) self.assert_(lst.index(1337) < lst.index(9)) self.assert_(lst.index(1337) > lst.index(2)) def test_modifying_arguments(self): sd = self.sd lst = [] def modify(s): s.number = 5 def set_number(s): lst.append(s.number) def stopit(s): s.stop() sd.signal_bind('setnumber', set_number) sd.signal_emit('setnumber', number=100) self.assertEqual(100, lst[-1]) sd.signal_bind('setnumber', modify, priority=1) sd.signal_emit('setnumber', number=100) self.assertEqual(5, lst[-1]) lst.append(None) sd.signal_bind('setnumber', stopit, priority=1) sd.signal_emit('setnumber', number=100) self.assertEqual(None, lst[-1]) def test_weak_refs(self): sd = self.sd is_deleted = [False] class Foo(object): def __init__(self): self.alphabet = ['a'] def calc(self, signal): self.alphabet.append(chr(ord(self.alphabet[-1]) + 1)) def __del__(self): is_deleted[0] = True foo = Foo() alphabet = foo.alphabet calc = foo.calc del foo self.assertEqual('a', ''.join(alphabet)) sd.signal_bind('mysignal', calc, weak=True) sd.signal_emit('mysignal') self.assertEqual('ab', ''.join(alphabet)) self.assertFalse(is_deleted[0]) del calc self.assertTrue(is_deleted[0]) def test_weak_refs_dead_on_arrival(self): sd = self.sd is_deleted = [False] class Foo(object): def __init__(self): self.alphabet = ['a'] def calc(self, signal): self.alphabet.append(chr(ord(self.alphabet[-1]) + 1)) def __del__(self): is_deleted[0] = True foo = Foo() alphabet = foo.alphabet self.assertEqual('a', ''.join(alphabet)) sd.signal_bind('mysignal', foo.calc, weak=True) sd.signal_emit('mysignal') self.assertEqual('ab', ''.join(alphabet)) self.assertFalse(is_deleted[0]) del foo sd.signal_emit('mysignal') self.assertEqual('ab', ''.join(alphabet)) self.assertTrue(is_deleted[0]) if __name__ == '__main__': unittest.main()