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use ndarray::*;
use super::norm::*;
use super::types::*;
pub fn rclose<A: Scalar>(test: A, truth: A, rtol: A::Real) -> Result<A::Real, A::Real> {
let dev = (test - truth).abs() / truth.abs();
if dev < rtol {
Ok(dev)
} else {
Err(dev)
}
}
pub fn aclose<A: Scalar>(test: A, truth: A, atol: A::Real) -> Result<A::Real, A::Real> {
let dev = (test - truth).abs();
if dev < atol {
Ok(dev)
} else {
Err(dev)
}
}
pub fn close_max<A, S1, S2, D>(
test: &ArrayBase<S1, D>,
truth: &ArrayBase<S2, D>,
atol: A::Real,
) -> Result<A::Real, A::Real>
where
A: Scalar,
S1: Data<Elem = A>,
S2: Data<Elem = A>,
D: Dimension,
{
let tol = (test - truth).norm_max();
if tol < atol {
Ok(tol)
} else {
Err(tol)
}
}
pub fn close_l1<A, S1, S2, D>(
test: &ArrayBase<S1, D>,
truth: &ArrayBase<S2, D>,
rtol: A::Real,
) -> Result<A::Real, A::Real>
where
A: Scalar,
S1: Data<Elem = A>,
S2: Data<Elem = A>,
D: Dimension,
{
let tol = (test - truth).norm_l1() / truth.norm_l1();
if tol < rtol {
Ok(tol)
} else {
Err(tol)
}
}
pub fn close_l2<A, S1, S2, D>(
test: &ArrayBase<S1, D>,
truth: &ArrayBase<S2, D>,
rtol: A::Real,
) -> Result<A::Real, A::Real>
where
A: Scalar,
S1: Data<Elem = A>,
S2: Data<Elem = A>,
D: Dimension,
{
let tol = (test - truth).norm_l2() / truth.norm_l2();
if tol < rtol {
Ok(tol)
} else {
Err(tol)
}
}
macro_rules! generate_assert {
($assert:ident, $close:path) => {
#[macro_export]
macro_rules! $assert {
($test: expr,$truth: expr,$tol: expr) => {
$crate::$close($test, $truth, $tol).unwrap();
};
($test: expr,$truth: expr,$tol: expr; $comment: expr) => {
$crate::$close($test, $truth, $tol).expect($comment);
};
}
};
}
generate_assert!(assert_rclose, rclose);
generate_assert!(assert_aclose, aclose);
generate_assert!(assert_close_max, close_max);
generate_assert!(assert_close_l1, close_l1);
generate_assert!(assert_close_l2, close_l2);