def testAddRemoveListener(self):
"""
Tests add/remove listener methods
"""
registry = []
values = (42, "test", (1, 2, 3))
# None value
self.assertFalse(utilities.add_listener(registry, None),
"None value must not be accepted")
self.assertFalse(utilities.remove_listener(registry, None),
"None value must not be accepted")
for value in values:
# Non-present value
self.assertFalse(utilities.remove_listener(registry, value),
"Non-present value removed")
# Add value
self.assertTrue(utilities.add_listener(registry, value),
"Value has been refused")
self.assertEqual(registry.count(value), 1,
"Value not inserted in registry")
# Second add
self.assertFalse(utilities.add_listener(registry, value),
"Value has been added twice")
self.assertEqual(registry.count(value), 1,
"Value has been added twice")
for value in values:
# Remove value
self.assertTrue(utilities.remove_listener(registry, value),
"Value has not been removed")
# Ensure the value has been remove
self.assertEqual(registry.count(value), 0,
"Value has not been removed")
# Second removal
self.assertFalse(utilities.remove_listener(registry, value),
"Value has been removed twice")
def testAddRemoveListener(self):
"""
Tests add/remove listener methods
"""
registry = []
values = (42, "test", (1, 2, 3))
# None value
self.assertFalse(utilities.add_listener(registry, None),
"None value must not be accepted")
self.assertFalse(utilities.remove_listener(registry, None),
"None value must not be accepted")
for value in values:
# Non-present value
self.assertFalse(utilities.remove_listener(registry, value),
"Non-present value removed")
# Add value
self.assertTrue(utilities.add_listener(registry, value),
"Value has been refused")
self.assertEqual(registry.count(value), 1,
"Value not inserted in registry")
# Second add
self.assertFalse(utilities.add_listener(registry, value),
"Value has been added twice")
self.assertEqual(registry.count(value), 1,
"Value has been added twice")
for value in values:
# Remove value
self.assertTrue(utilities.remove_listener(registry, value),
"Value has not been removed")
# Ensure the value has been remove
self.assertEqual(registry.count(value), 0,
"Value has not been removed")
# Second removal
self.assertFalse(utilities.remove_listener(registry, value),
"Value has been removed twice")
def add_listener(self, listener):
"""
Register an iPOPO event listener.
The event listener must have a method with the following prototype::
def handle_ipopo_event(self, event):
'''
event: A IPopoEvent object
'''
# ...
:param listener: The listener to register
:return: True if the listener has been added to the registry
"""
with self.__listeners_lock:
return add_listener(self.__listeners, listener)
def add_listener(self, listener):
"""
Register an iPOPO event listener.
The event listener must have a method with the following prototype::
def handle_ipopo_event(self, event):
'''
event: A IPopoEvent object
'''
# ...
:param listener: The listener to register
:return: True if the listener has been added to the registry
"""
with self.__listeners_lock:
return add_listener(self.__listeners, listener)
