use ndarray::*;
use ndarray_linalg::*;

#[test]
fn n_columns() {
    let mut rng = rand_pcg::Mcg128Xsl64::new(0xcafef00dd15ea5e5);
    let a: Array2<f64> = random_using((3, 2), &mut rng);
    let (n, v) = normalize(a.clone(), NormalizeAxis::Column);
    assert_close_l2!(&n.dot(&from_diag(&v)), &a, 1e-7);
}

#[test]
fn n_rows() {
    let mut rng = rand_pcg::Mcg128Xsl64::new(0xcafef00dd15ea5e5);
    let a: Array2<f64> = random_using((3, 2), &mut rng);
    let (n, v) = normalize(a.clone(), NormalizeAxis::Row);
    assert_close_l2!(&from_diag(&v).dot(&n), &a, 1e-7);
}