nalgebra/tests/linalg/hessenberg.rs
2021-03-01 10:02:45 +01:00

52 lines
1.7 KiB
Rust

#![cfg(feature = "proptest-support")]
use na::Matrix2;
#[test]
fn hessenberg_simple() {
let m = Matrix2::new(1.0, 0.0, 1.0, 3.0);
let hess = m.hessenberg();
let (p, h) = hess.unpack();
assert!(relative_eq!(m, p * h * p.transpose(), epsilon = 1.0e-7))
}
macro_rules! gen_tests(
($module: ident, $scalar: expr, $scalar_type: ty) => {
mod $module {
use na::DMatrix;
#[allow(unused_imports)]
use crate::core::helper::{RandScalar, RandComplex};
use crate::proptest::*;
use proptest::{prop_assert, proptest};
proptest! {
#[test]
fn hessenberg(n in PROPTEST_MATRIX_DIM) {
let m = DMatrix::<$scalar_type>::new_random(n, n).map(|e| e.0);
let hess = m.clone().hessenberg();
let (p, h) = hess.unpack();
prop_assert!(relative_eq!(m, &p * h * p.adjoint(), epsilon = 1.0e-7))
}
#[test]
fn hessenberg_static_mat2(m in matrix2_($scalar)) {
let hess = m.hessenberg();
let (p, h) = hess.unpack();
prop_assert!(relative_eq!(m, p * h * p.adjoint(), epsilon = 1.0e-7))
}
#[test]
fn hessenberg_static(m in matrix4_($scalar)) {
let hess = m.hessenberg();
let (p, h) = hess.unpack();
prop_assert!(relative_eq!(m, p * h * p.adjoint(), epsilon = 1.0e-7))
}
}
}
}
);
gen_tests!(complex, complex_f64(), RandComplex<f64>);
gen_tests!(f64, PROPTEST_F64, RandScalar<f64>);