forked from M-Labs/nalgebra
190 lines
6.3 KiB
Rust
190 lines
6.3 KiB
Rust
use nalgebra_sparse::{CooMatrix, SparsePatternError};
|
|
use nalgebra::DMatrix;
|
|
use crate::assert_panics;
|
|
|
|
#[test]
|
|
fn coo_construction_for_valid_data() {
|
|
// Test that construction with try_from_triplets succeeds, that the state of the
|
|
// matrix afterwards is as expected, and that the dense representation matches expectations.
|
|
|
|
{
|
|
// Zero matrix
|
|
let coo = CooMatrix::<i32>::try_from_triplets(3, 2, Vec::new(), Vec::new(), Vec::new())
|
|
.unwrap();
|
|
assert_eq!(coo.nrows(), 3);
|
|
assert_eq!(coo.ncols(), 2);
|
|
assert!(coo.triplet_iter().next().is_none());
|
|
assert!(coo.row_indices().is_empty());
|
|
assert!(coo.col_indices().is_empty());
|
|
assert!(coo.values().is_empty());
|
|
|
|
assert_eq!(coo.to_dense(), DMatrix::repeat(3, 2, 0));
|
|
}
|
|
|
|
{
|
|
// Arbitrary matrix, no duplicates
|
|
let i = vec![0, 1, 0, 0, 2];
|
|
let j = vec![0, 2, 1, 3, 3];
|
|
let v = vec![2, 3, 7, 3, 1];
|
|
let coo = CooMatrix::<i32>::try_from_triplets(3, 5, i.clone(), j.clone(), v.clone())
|
|
.unwrap();
|
|
assert_eq!(coo.nrows(), 3);
|
|
assert_eq!(coo.ncols(), 5);
|
|
|
|
assert_eq!(i.as_slice(), coo.row_indices());
|
|
assert_eq!(j.as_slice(), coo.col_indices());
|
|
assert_eq!(v.as_slice(), coo.values());
|
|
|
|
let expected_triplets: Vec<_> = i
|
|
.iter()
|
|
.zip(&j)
|
|
.zip(&v)
|
|
.map(|((i, j), v)| (*i, *j, *v))
|
|
.collect();
|
|
let actual_triplets: Vec<_> = coo.triplet_iter().map(|(i, j, v)| (i, j, *v)).collect();
|
|
assert_eq!(actual_triplets, expected_triplets);
|
|
|
|
#[rustfmt::skip]
|
|
let expected_dense = DMatrix::from_row_slice(3, 5, &[
|
|
2, 7, 0, 3, 0,
|
|
0, 0, 3, 0, 0,
|
|
0, 0, 0, 1, 0
|
|
]);
|
|
assert_eq!(coo.to_dense(), expected_dense);
|
|
}
|
|
|
|
{
|
|
// Arbitrary matrix, with duplicates
|
|
let i = vec![0, 1, 0, 0, 0, 0, 2, 1];
|
|
let j = vec![0, 2, 0, 1, 0, 3, 3, 2];
|
|
let v = vec![2, 3, 4, 7, 1, 3, 1, 5];
|
|
let coo = CooMatrix::<i32>::try_from_triplets(3, 5, i.clone(), j.clone(), v.clone())
|
|
.unwrap();
|
|
assert_eq!(coo.nrows(), 3);
|
|
assert_eq!(coo.ncols(), 5);
|
|
|
|
assert_eq!(i.as_slice(), coo.row_indices());
|
|
assert_eq!(j.as_slice(), coo.col_indices());
|
|
assert_eq!(v.as_slice(), coo.values());
|
|
|
|
let expected_triplets: Vec<_> = i
|
|
.iter()
|
|
.zip(&j)
|
|
.zip(&v)
|
|
.map(|((i, j), v)| (*i, *j, *v))
|
|
.collect();
|
|
let actual_triplets: Vec<_> = coo.triplet_iter().map(|(i, j, v)| (i, j, *v)).collect();
|
|
assert_eq!(actual_triplets, expected_triplets);
|
|
|
|
#[rustfmt::skip]
|
|
let expected_dense = DMatrix::from_row_slice(3, 5, &[
|
|
7, 7, 0, 3, 0,
|
|
0, 0, 8, 0, 0,
|
|
0, 0, 0, 1, 0
|
|
]);
|
|
assert_eq!(coo.to_dense(), expected_dense);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn coo_try_from_triplets_reports_out_of_bounds_indices() {
|
|
{
|
|
// 0x0 matrix
|
|
let result = CooMatrix::<i32>::try_from_triplets(0, 0, vec![0], vec![0], vec![2]);
|
|
assert!(matches!(result, Err(SparsePatternError::IndexOutOfBounds(_))));
|
|
}
|
|
|
|
{
|
|
// 1x1 matrix, row out of bounds
|
|
let result = CooMatrix::<i32>::try_from_triplets(1, 1, vec![1], vec![0], vec![2]);
|
|
assert!(matches!(result, Err(SparsePatternError::IndexOutOfBounds(_))));
|
|
}
|
|
|
|
{
|
|
// 1x1 matrix, col out of bounds
|
|
let result = CooMatrix::<i32>::try_from_triplets(1, 1, vec![0], vec![1], vec![2]);
|
|
assert!(matches!(result, Err(SparsePatternError::IndexOutOfBounds(_))));
|
|
}
|
|
|
|
{
|
|
// 1x1 matrix, row and col out of bounds
|
|
let result = CooMatrix::<i32>::try_from_triplets(1, 1, vec![1], vec![1], vec![2]);
|
|
assert!(matches!(result, Err(SparsePatternError::IndexOutOfBounds(_))));
|
|
}
|
|
|
|
{
|
|
// Arbitrary matrix, row out of bounds
|
|
let i = vec![0, 1, 0, 3, 2];
|
|
let j = vec![0, 2, 1, 3, 3];
|
|
let v = vec![2, 3, 7, 3, 1];
|
|
let result = CooMatrix::<i32>::try_from_triplets(3, 5, i, j, v);
|
|
assert!(matches!(result, Err(SparsePatternError::IndexOutOfBounds(_))));
|
|
}
|
|
|
|
{
|
|
// Arbitrary matrix, col out of bounds
|
|
let i = vec![0, 1, 0, 0, 2];
|
|
let j = vec![0, 2, 1, 5, 3];
|
|
let v = vec![2, 3, 7, 3, 1];
|
|
let result = CooMatrix::<i32>::try_from_triplets(3, 5, i, j, v);
|
|
assert!(matches!(result, Err(SparsePatternError::IndexOutOfBounds(_))));
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn coo_try_from_triplets_panics_on_mismatched_vectors() {
|
|
// Check that try_from_triplets panics when the triplet vectors have different lengths
|
|
macro_rules! assert_errs {
|
|
($result:expr) => {
|
|
assert!(matches!($result, Err(SparseFormatError::InvalidStructure(_))))
|
|
}
|
|
}
|
|
|
|
assert_errs!(CooMatrix::<i32>::try_from_triplets(3, 5, vec![1, 2], vec![0], vec![0]));
|
|
assert_errs!(CooMatrix::<i32>::try_from_triplets(3, 5, vec![1], vec![0, 0], vec![0]));
|
|
assert_errs!(CooMatrix::<i32>::try_from_triplets(3, 5, vec![1], vec![0], vec![0, 1]));
|
|
assert_errs!(CooMatrix::<i32>::try_from_triplets(3, 5, vec![1, 2], vec![0, 1], vec![0]));
|
|
assert_errs!(CooMatrix::<i32>::try_from_triplets(3, 5, vec![1], vec![0, 1], vec![0, 1]));
|
|
assert_errs!(CooMatrix::<i32>::try_from_triplets(3, 5, vec![1, 1], vec![0], vec![0, 1]));
|
|
}
|
|
|
|
#[test]
|
|
fn coo_push_valid_entries() {
|
|
let mut coo = CooMatrix::new(3, 3);
|
|
|
|
coo.push(0, 0, 1);
|
|
assert_eq!(coo.triplet_iter().collect::<Vec<_>>(), vec![(0, 0, &1)]);
|
|
|
|
coo.push(0, 0, 2);
|
|
assert_eq!(coo.triplet_iter().collect::<Vec<_>>(), vec![(0, 0, &1), (0, 0, &2)]);
|
|
|
|
coo.push(2, 2, 3);
|
|
assert_eq!(coo.triplet_iter().collect::<Vec<_>>(), vec![(0, 0, &1), (0, 0, &2), (2, 2, &3)]);
|
|
}
|
|
|
|
#[test]
|
|
fn coo_push_out_of_bounds_entries() {
|
|
{
|
|
// 0x0 matrix
|
|
let coo = CooMatrix::new(0, 0);
|
|
assert_panics!(coo.clone().push(0, 0, 1));
|
|
}
|
|
|
|
{
|
|
// 0x1 matrix
|
|
assert_panics!(CooMatrix::new(0, 1).push(0, 0, 1));
|
|
}
|
|
|
|
{
|
|
// 1x0 matrix
|
|
assert_panics!(CooMatrix::new(1, 0).push(0, 0, 1));
|
|
}
|
|
|
|
{
|
|
// Arbitrary matrix dimensions
|
|
let coo = CooMatrix::new(3, 2);
|
|
assert_panics!(coo.clone().push(3, 0, 1));
|
|
assert_panics!(coo.clone().push(2, 2, 1));
|
|
assert_panics!(coo.clone().push(3, 2, 1));
|
|
}
|
|
} |