nalgebra/tests/core/matrixcompare.rs

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2019-08-12 00:26:12 +08:00
//! Tests for `matrixcompare` integration.
//!
//! The `matrixcompare` crate itself is responsible for testing the actual comparison.
//! The tests here only check that the necessary trait implementations are correctly implemented,
//! in addition to some sanity checks with example input.
use nalgebra::{U4, U5, MatrixMN, DMatrix};
use matrixcompare::{assert_matrix_eq, DenseAccess};
#[cfg(feature = "arbitrary")]
quickcheck! {
fn fetch_single_is_equivalent_to_index_f64(matrix: DMatrix<f64>) -> bool {
for i in 0 .. matrix.nrows() {
for j in 0 .. matrix.ncols() {
if matrix.fetch_single(i, j) != *matrix.index((i, j)) {
return false;
}
}
}
true
}
fn matrixcompare_shape_agrees_with_matrix(matrix: DMatrix<f64>) -> bool {
matrix.nrows() == <DMatrix<f64> as matrixcompare::Matrix<f64>>::rows(&matrix)
&&
matrix.ncols() == <DMatrix<f64> as matrixcompare::Matrix<f64>>::cols(&matrix)
}
}
#[test]
fn assert_matrix_eq_dense_positive_comparison() {
let a = MatrixMN::<_, U4, U5>::from_row_slice(&[
1210, 1320, 1430, 1540, 1650,
2310, 2420, 2530, 2640, 2750,
3410, 3520, 3630, 3740, 3850,
4510, 4620, 4730, 4840, 4950,
]);
let b = MatrixMN::<_, U4, U5>::from_row_slice(&[
1210, 1320, 1430, 1540, 1650,
2310, 2420, 2530, 2640, 2750,
3410, 3520, 3630, 3740, 3850,
4510, 4620, 4730, 4840, 4950,
]);
// Test matrices of static size
assert_matrix_eq!(a, b);
assert_matrix_eq!(&a, b);
assert_matrix_eq!(a, &b);
assert_matrix_eq!(&a, &b);
// Test matrices of dynamic size
let a_dyn = a.index((0..4, 0..5));
let b_dyn = b.index((0..4, 0..5));
assert_matrix_eq!(a_dyn, b_dyn);
assert_matrix_eq!(a_dyn, &b_dyn);
assert_matrix_eq!(&a_dyn, b_dyn);
assert_matrix_eq!(&a_dyn, &b_dyn);
}
#[test]
#[should_panic]
fn assert_matrix_eq_dense_negative_comparison() {
let a = MatrixMN::<_, U4, U5>::from_row_slice(&[
1210, 1320, 1430, 1540, 1650,
2310, 2420, 2530, 2640, 2750,
3410, 3520, 3630, 3740, 3850,
4510, 4620, -4730, 4840, 4950,
]);
let b = MatrixMN::<_, U4, U5>::from_row_slice(&[
1210, 1320, 1430, 1540, 1650,
2310, 2420, 2530, 2640, 2750,
3410, 3520, 3630, 3740, 3850,
4510, 4620, 4730, 4840, 4950,
]);
assert_matrix_eq!(a, b);
}