public void Test_Thing_OptimalDeltaT2()
{
Field f = new Field();
Location2d loc = new Location2d();
Velocity2d vel = new Velocity2d(0, 28);
double size = 14.0;
Thing thing = new Thing(f.CurrentState, loc, vel, size);
decimal expectedDeltaT = 0.5m;
Assert.AreEqual(expectedDeltaT, thing.CalculateOptimalDeltaT());
}