def test_only_one_instance_of_the_bus(self):
bus_a = Bus.get_or_create('bus_a')
bus_b = Bus.get_bus('bus_a')
bus_c = Bus.get_or_create('bus_c')
bus_d = Bus()
assert bus_a is bus_b
assert bus_a is not bus_c
assert bus_d is not bus_a
def test_only_one_instance_of_the_bus(self):
bus_a = Bus.get_or_create('bus_a')
bus_b = Bus.get_bus('bus_a')
bus_c = Bus.get_or_create('bus_c')
bus_d = Bus()
assert bus_a is bus_b
assert bus_a is not bus_c
assert bus_d is not bus_a
def __init__(self):
super(ThreadClass3, self).__init__()
self._should_stop = threading.Event()
self._is_running = threading.Event()
self._callback_counter = 0
self._latest_argument = ""
self._bus = Bus.get_or_create('bus_a')
def test_delete_bus_instances(self):
bus_x = Bus.get_or_create('bus_x')
assert bus_x in Bus._instances.values()
Bus.delete_bus('bus_x')
assert bus_x not in Bus._instances.values()
def test_delete_bus_instances(self):
bus_x = Bus.get_or_create('bus_x')
assert bus_x in Bus._instances.values()
Bus.delete_bus('bus_x')
assert bus_x not in Bus._instances.values()
with self.assertRaises(KeyError):
Bus.delete_bus('bus_x')
def test_messages_across_threads_thread_subscribe1(self):
# in this example we create a thread and then from outside that thread we create a subscription to one of the
# threads functions
bus_a = Bus.get_or_create('bus_a')
new_thread = ThreadClass1()
new_thread.start()
bus_a.subscribe('level1a.level2a', new_thread.message_callback)
# we have subscribed to a parent level thus we should receive this publish
bus_a.publish('level1a.level2a.level3a', argument="hello")
#assert self.has_run
assert new_thread.get_latest_argument() == "hello"
assert new_thread.get_bus() == bus_a
assert new_thread.get_latest_counter() == 1
new_thread.stop()
def test_messages_across_threads_thread_publish(self):
# in this example we create a thread and then from inside that thread we perform a publish which eventuates
# in this main thread
self.reset_test()
bus_a = Bus.get_or_create('bus_a')
bus_a.subscribe('level1a.level2a', self.callback)
new_thread = ThreadClass3()
new_thread.start()
while not new_thread.running():
time.sleep(0.05)
new_thread.stop()
assert self.has_run
assert self.argument == "hello from thread"
assert self.called_bus == bus_a
assert self.callback_count == 1
def test_messages_across_threads_thread_subscribe2(self):
# in this example we create a thread and then from outside that thread we create a subscription to one of the
# threads functions
bus_a = Bus.get_or_create('bus_a')
new_thread = ThreadClass2()
new_thread.start()
while not new_thread.running():
time.sleep(0.05)
# we have subscribed to a parent level thus we should receive this publish
bus_a.publish('level1a.level2a.level3a', argument="hello_there")
new_thread.stop()
#assert self.has_run
assert new_thread.get_latest_argument() == "hello_there"
assert new_thread.get_bus() == bus_a
assert new_thread.get_latest_counter() == 1
def test_bus_is_not_specific(self):
bus_y = Bus()
bus_z = Bus.get_or_create('bus_z')
assert bus_y is not bus_z
def test_get_or_create_only_once(self):
bus_a = Bus.get_or_create('bus_a')
bus_b = Bus.get_or_create('bus_a')
assert bus_a is bus_b
def test_bus_is_not_specific(self):
bus_y = Bus()
bus_z = Bus.get_or_create('bus_z')
assert bus_y is not bus_z