def test_monitor_collection_calls_two_monitors(mock_store):
mock_store.return_value = None
monitor_collection = MonitorComposite(MockMonitor(), MockMonitor())
state = {'air_temperature': 273.15}
monitor_collection.store(state)
assert mock_store.called
assert mock_store.call_count == 2
def test_empty_monitor_collection():
# mainly we're testing that nothing errors
monitor_collection = MonitorComposite()
state = {'air_temperature': 273.15}
monitor_collection.store(state)