def test_reload(self):
"""Tests if module is reload safe."""
b = B()
m = messenger.Messenger()
orig_len = len(m._signals)
reload(messenger)
m = messenger.Messenger()
self.assertEqual(len(m._signals), orig_len)
b.send(1, test=1)
self.assertEqual(b.a.event, 'method')
self.assertEqual(ret[0], 'function')
self.assertEqual(b.a.args, (1, ))
self.assertEqual(ret[1], (1, ))
self.assertEqual(b.a.kw, {'test': 1})
self.assertEqual(ret[2], {'test': 1})
def test_send_on_dead_ref(self):
"""Test if sending to a gc'd callback works gracefully."""
class C:
def foo(self, o, e):
pass
c = C()
c1 = C()
messenger.connect(c1, 'foo', c.foo)
messenger.send(c1, 'foo')
# Test if things behave sanely if a message was sent and one
# of the callbacks has been gc'd.
m = messenger.Messenger()
l1 = len(m._signals[hash(c1)]['foo'])
#
del c
messenger.send(c1, 'foo')
#
l2 = len(m._signals[hash(c1)]['foo'])
# Since 'c' is gc'd this callback should have been cleared
# out.
self.assertEqual(l2, l1 - 1)
# Clean up.
messenger.disconnect(c1)
def test_basic(self):
"""Test basic functionality of the messenger."""
m = messenger.Messenger()
orig_len = len(m._signals)
b = B()
b.send(1, test=1)
self.assertEqual(b.a.event, 'method')
self.assertEqual(ret[0], 'function')
self.assertEqual(b.a.args, (1, ))
self.assertEqual(ret[1], (1, ))
self.assertEqual(b.a.kw, {'test': 1})
self.assertEqual(ret[2], {'test': 1})
# Ensures that disconnect works and also that there are no
# reference cycles.
self.assertEqual(len(m._signals) > orig_len, True)
del b
self.assertEqual(len(m._signals), orig_len)