/usr/lib/python3/dist-packages/plainbox/impl/test_signal.py is in python3-plainbox 0.5.3-2.
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#
# Copyright 2013 Canonical Ltd.
# Written by:
# Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
#
# Checkbox is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# Checkbox 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 Checkbox. If not, see <http://www.gnu.org/licenses/>.
"""
plainbox.impl.test_signal
=========================
Test definitions for plainbox.impl.signal module
"""
from unittest import TestCase
from plainbox.impl.signal import Signal, remove_signals_listeners
class SignalTests(TestCase):
def setUp(self):
class C:
@Signal.define
def on_foo(self):
self.first_responder_called = True
@Signal.define
def on_bar(self):
self.first_responder_called = True
self.c = C()
def test_smoke(self):
self.c.on_foo.connect(lambda: setattr(self, 'signal_called', True))
self.c.on_foo()
self.assertEqual(self.c.first_responder_called, True)
self.assertEqual(self.signal_called, True)
def test_remove_signals_listeners(self):
c = self.c
class R:
def __init__(self):
c.on_foo.connect(self._foo)
c.on_bar.connect(self._bar)
c.on_bar.connect(self._baz)
def _foo(self):
pass
def _bar(self):
pass
def _baz(self):
pass
a = R()
b = R()
self.assertEqual(len(a.__listeners__), 3)
self.assertEqual(len(b.__listeners__), 3)
remove_signals_listeners(a)
self.assertEqual(len(a.__listeners__), 0)
self.assertEqual(len(b.__listeners__), 3)
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