public void When_person_in_lift_enters_a_floor_number_then_lift_notifies_its_current_location()
{
// Arrange
var testScheduler = new TestScheduler();
var theLiftEngine = new LiftEventGenerator(testScheduler);
var theLift = new ObservableLift(LiftConstants.GroundFloor, theLiftEngine);
_liftStatuses.Clear();
theLift.Subscribe(this);
// Act
theLift.OnNext(new LiftMoveRequest { Floor = LiftConstants.FirstFloor });
testScheduler.Start();
testScheduler.AdvanceBy(5);
// Assert
Assert.That(_liftStatuses.Count, Is.GreaterThan(0));
Assert.That(_liftStatuses[0].CurrentFloor, Is.EqualTo(LiftConstants.GroundFloor));
}
public void When_lift_arrives_at_new_floor_after_person_calls_lift_then_lift_stops_moving()
{
// Arrange
var theLift = new ObservableLift(LiftConstants.GroundFloor, this);
_liftEngineEvents.Clear();
theLift.Subscribe(this);
// Act
_currentObserver.OnNext(new LiftCall { Floor = LiftConstants.FourthFloor });
_currentObserver.OnNext(new LiftEngineUpwardsEvent { Floor = LiftConstants.FourthFloor });
// Assert
Assert.That(_liftEngineEvents.Count, Is.GreaterThan(1));
Assert.That(_liftEngineEvents[_liftEngineEvents.Count - 1].Direction, Is.EqualTo(Direction.None));
Assert.That(_liftEngineEvents[_liftEngineEvents.Count - 1].CurrentFloor, Is.EqualTo(LiftConstants.FloorIsIrrelevant));
}
public void When_person_in_lift_enters_a_lower_floor_number_then_lift_is_told_to_start_moving_downwards()
{
// Arrange
var theLift = new ObservableLift(LiftConstants.ThirdFloor, this);
_liftEngineEvents.Clear();
theLift.Subscribe(this);
// Act
_currentObserver.OnNext(new LiftMoveRequest { Floor = LiftConstants.FirstFloor });
// Assert
Assert.That(_liftEngineEvents.Count, Is.GreaterThan(0));
Assert.That(_liftEngineEvents[0].Direction, Is.EqualTo(Direction.Down));
Assert.That(_liftEngineEvents[0].CurrentFloor, Is.EqualTo(LiftConstants.ThirdFloor));
}
public void When_person_in_lift_enters_a_higher_floor_number_then_lift_engine_is_asked_to_move_upwards_and_then_stopped_when_it_reaches_destination()
{
// Arrange
var theLift = new ObservableLift(LiftConstants.GroundFloor, this);
_liftEngineEvents.Clear();
theLift.Subscribe(this);
// Act
_currentObserver.OnNext(new LiftMoveRequest { Floor = LiftConstants.ThirdFloor });
_currentObserver.OnNext(new LiftEngineUpwardsEvent { Floor = LiftConstants.ThirdFloor });
// Assert
Assert.That(_liftEngineEvents.Count, Is.EqualTo(2));
Assert.That(_liftEngineEvents[0].Direction, Is.EqualTo(Direction.Up));
Assert.That(_liftEngineEvents[0].CurrentFloor, Is.EqualTo(LiftConstants.GroundFloor));
Assert.That(_liftEngineEvents[1].Direction, Is.EqualTo(Direction.None));
Assert.That(_liftEngineEvents[1].CurrentFloor, Is.EqualTo(LiftConstants.FloorIsIrrelevant));
}
public void When_person_in_lift_enters_a_floor_number_then_lift_is_told_to_move_to_that_floor()
{
// Arrange
var theLift = new ObservableLift(LiftConstants.GroundFloor, this);
_liftEngineEvents.Clear();
theLift.Subscribe(this);
// Act
_currentObserver.OnNext(new LiftMoveRequest { Floor = LiftConstants.FourthFloor });
// Assert
Assert.That(_liftEngineEvents.Count, Is.GreaterThan(0));
Assert.That(_liftEngineEvents[0].Direction, Is.EqualTo(Direction.Up));
Assert.That(_liftEngineEvents[0].LastFloor, Is.EqualTo(LiftConstants.FourthFloor));
}
public void When_person_calls_lift_to_higher_floor_number_then_lift_is_told_to_start_moving_upwards()
{
// Arrange
var theLift = new ObservableLift(LiftConstants.GroundFloor, this);
_liftEngineEvents.Clear();
theLift.Subscribe(this);
// Act
_currentObserver.OnNext(new LiftCall { Floor = LiftConstants.ThirdFloor });
// Assert
Assert.That(_liftEngineEvents.Count, Is.GreaterThan(0));
Assert.That(_liftEngineEvents[0].Direction, Is.EqualTo(Direction.Up));
Assert.That(_liftEngineEvents[0].CurrentFloor, Is.EqualTo(LiftConstants.GroundFloor));
}
public void When_person_calls_lift_to_floor_number_then_lift_notifies_direction_and_location_for_every_floor_it_passes()
{
// Arrange
var theLift = new ObservableLift(LiftConstants.GroundFloor, this);
_liftStatuses.Clear();
theLift.Subscribe(this);
// Act
_currentObserver.OnNext(new LiftCall { Floor = LiftConstants.ThirdFloor });
_currentObserver.OnNext(new LiftEngineUpwardsEvent { Floor = LiftConstants.GroundFloor });
_currentObserver.OnNext(new LiftEngineUpwardsEvent { Floor = LiftConstants.FirstFloor });
_currentObserver.OnNext(new LiftEngineUpwardsEvent { Floor = LiftConstants.SecondFloor });
_currentObserver.OnNext(new LiftEngineUpwardsEvent { Floor = LiftConstants.ThirdFloor });
// Assert
Assert.That(_liftStatuses.Count, Is.EqualTo(4));
Assert.That(_liftStatuses[0].CurrentDirection, Is.EqualTo(Direction.Up));
Assert.That(_liftStatuses[0].CurrentFloor, Is.EqualTo(LiftConstants.GroundFloor));
Assert.That(_liftStatuses[1].CurrentDirection, Is.EqualTo(Direction.Up));
Assert.That(_liftStatuses[1].CurrentFloor, Is.EqualTo(LiftConstants.FirstFloor));
Assert.That(_liftStatuses[2].CurrentDirection, Is.EqualTo(Direction.Up));
Assert.That(_liftStatuses[2].CurrentFloor, Is.EqualTo(LiftConstants.SecondFloor));
Assert.That(_liftStatuses[3].CurrentDirection, Is.EqualTo(Direction.None));
Assert.That(_liftStatuses[3].CurrentFloor, Is.EqualTo(LiftConstants.ThirdFloor));
}