public void DeactivateTest()
{
LightSensor ls = new LightSensor();
FireSensor fs = new FireSensor();
DoorSensor ds = new DoorSensor();
ls.Activate();
fs.Activate();
ds.Activate();
Assert.IsNotNull(ls.alarm);
Assert.IsNotNull(fs.alarm);
Assert.IsNotNull(ds.alarm);
bool lsStatus = ls.checkStatus();
bool fsStatus = fs.checkStatus();
bool dsStatus = ds.checkStatus();
Assert.IsTrue(lsStatus);
Assert.IsTrue(fsStatus);
Assert.IsTrue(dsStatus);
ls.Deactivate();
fs.Deactivate();
ds.Deactivate();
Assert.IsNull(ls.alarm);
Assert.IsNull(fs.alarm);
Assert.IsNull(ds.alarm);
}
