public void TestGravitationalForceCalculation() { var xEntity = new Entity() { X = 800, Y = 800, Color = ColorExtensions.GenerateColor(), Mass = 1f }; var yEntity = new Entity() { X = 0, Y = 0, Color = ColorExtensions.GenerateColor(), Mass = 1f }; TestContext.WriteLine(PhysicsExtensions.CalculateGravitationalForce(xEntity, yEntity)); Assert.Greater(PhysicsExtensions.CalculateGravitationalForce(xEntity, yEntity), 0); }