pub fn concat_random_test<C0, C1>(curve0: &C0, curve1: &C1, trials: usize)where
    C0: Concat<C1>,
    <C0 as ParametricCurve>::Point: Debug + Tolerance,
    <C0 as ParametricCurve>::Vector: Debug + Tolerance,
    <C0 as Concat<C1>>::Output: BoundedCurve<Point = <C0 as ParametricCurve>::Point, Vector = <C0 as ParametricCurve>::Vector> + Debug,
    C1: BoundedCurve<Point = <C0 as ParametricCurve>::Point, Vector = <C0 as ParametricCurve>::Vector>,
Expand description

positive test implementation for Concat.