def setUp(self):
self.dispatcher = SignalDispatcher()
self.objects = None
self.filtered = None
def handler(objects):
self.objects = objects
def filtered(objects):
self.filtered = objects
self._filtered = filtered
self.dispatcher.channel('/test/', handler)
self.dispatcher.channel('/args/', handler)
self.dispatcher.channel('/args/', filtered, filters=[lambda x: x > 0])
class SignalsTestCase(unittest.TestCase):
'''Test case for signals implementation
'''
def setUp(self):
self.dispatcher = SignalDispatcher()
self.objects = None
self.filtered = None
def handler(objects):
self.objects = objects
def filtered(objects):
self.filtered = objects
self._filtered = filtered
self.dispatcher.channel('/test/', handler)
self.dispatcher.channel('/args/', handler)
self.dispatcher.channel('/args/', filtered, filters=[lambda x: x > 0])
def testEmptySignal(self):
'''Test handler applied for signal with no objects passed
'''
self.dispatcher.signal('/test/')
assert self.objects == [], (
'Error dispatchin signal with no objects: %s' % self.objects)
def testObjectsSignal(self):
'''Test handler with objects passed into signals
'''
self.dispatcher.signal('/args/', [0, 1, 2, 3])
assert self.objects == [0, 1, 2, 3], (
'Error dispatchin signal with objects: %s' % self.objects)
assert self.filtered == [1, 2, 3], ('Error dispatchin signal with '
'objects filtered: %s' % self.filtered)
def testRemoveHandler(self):
'''Test handler removing
'''
self.dispatcher.close('/args/', self._filtered)
self.dispatcher.signal('/args/', [0, 1, 2, 3])
assert self.objects == [0, 1, 2, 3], (
'Error dispatching signal with objects: %s' % self.objects)
assert self.filtered == None, ('Error removing handler: %s' %
self.filtered)
def testCloseChannel(self):
'''Test closing channels
'''
self.dispatcher.close('/args/')
self.dispatcher.signal('/args/', [0, 1, 2, 3])
assert self.objects == None, 'Error closing channel: %s' % self.objects
assert self.filtered == None, ('Error closing channel: %s' %
self.filtered)
