public void Properly_releases_planes()
{
Airport airport = new Airport(1);
Plane plane1 = airport.AcquirePlane();
airport.ReleasePlane(plane1);
Assert.DoesNotThrow(delegate { Plane plane1again = airport.AcquirePlane(); });
}
public void Raises_exception_when_invalid_plane_is_released()
{
Airport airport = new Airport(1);
Plane planeInvalid = new Plane();
airport.ReleasePlane(planeInvalid);
}
