require "../../../src/engine/gravity/moving_body"

describe Gravity::MovingBody do
  it "accelerate arbitrary points" do
    earth = Gravity::MovingBody.new(
      mass: 5972200000000000000000000.0,
      position: Vector[0.0, 0.0],
      acceleration: Vector[1.0, 0.0],
      speed: Vector[2.0, 0.0],
    )
    earth.acceleration.should eq(Vector[1.0, 0.0])
    earth.speed.should eq(Vector[2.0, 0.0])
  end
end