def test_subscription_constructor(self):
callbacks = SubscriptionEventCallbacks()
liveliness_callback = Mock()
deadline_callback = Mock()
message_callback = Mock()
# No arg
subscription = self.node.create_subscription(EmptyMsg, 'test_topic', message_callback, 10)
self.assertEqual(len(subscription.event_handlers), 0)
self.node.destroy_subscription(subscription)
# Arg with no callbacks
subscription = self.node.create_subscription(
EmptyMsg, 'test_topic', message_callback, 10, event_callbacks=callbacks)
self.assertEqual(len(subscription.event_handlers), 0)
self.node.destroy_subscription(subscription)
# Arg with one of the callbacks
callbacks.deadline = deadline_callback
subscription = self.node.create_subscription(
EmptyMsg, 'test_topic', message_callback, 10, event_callbacks=callbacks)
self.assertEqual(len(subscription.event_handlers), 1)
self.node.destroy_subscription(subscription)
# Arg with both callbacks
callbacks.liveliness = liveliness_callback
subscription = self.node.create_subscription(
EmptyMsg, 'test_topic', message_callback, 10, event_callbacks=callbacks)
self.assertEqual(len(subscription.event_handlers), 2)
self.node.destroy_subscription(subscription)
def test_subscription_constructor(self):
callbacks = SubscriptionEventCallbacks()
liveliness_callback = Mock()
deadline_callback = Mock()
message_callback = Mock()
incompatible_qos_callback = Mock()
expected_num_event_handlers = 1
# No arg
subscription = self.node.create_subscription(EmptyMsg, self.topic_name,
message_callback, 10)
self.assertEqual(len(subscription.event_handlers),
expected_num_event_handlers)
self.node.destroy_subscription(subscription)
# Arg with no callbacks
subscription = self.node.create_subscription(EmptyMsg,
self.topic_name,
message_callback,
10,
event_callbacks=callbacks)
self.assertEqual(len(subscription.event_handlers),
expected_num_event_handlers)
self.node.destroy_subscription(subscription)
# Arg with one of the callbacks
callbacks.deadline = deadline_callback
expected_num_event_handlers += 1
subscription = self.node.create_subscription(EmptyMsg,
self.topic_name,
message_callback,
10,
event_callbacks=callbacks)
self.assertEqual(len(subscription.event_handlers),
expected_num_event_handlers)
self.node.destroy_subscription(subscription)
# Arg with two callbacks
callbacks.liveliness = liveliness_callback
expected_num_event_handlers += 1
subscription = self.node.create_subscription(EmptyMsg,
self.topic_name,
message_callback,
10,
event_callbacks=callbacks)
self.assertEqual(len(subscription.event_handlers),
expected_num_event_handlers)
self.node.destroy_subscription(subscription)
# Arg with three callbacks
callbacks.incompatible_qos = incompatible_qos_callback
subscription = self.node.create_subscription(EmptyMsg,
self.topic_name,
message_callback,
10,
event_callbacks=callbacks)
self.assertEqual(len(subscription.event_handlers), 3)
self.node.destroy_subscription(subscription)