mirror of
https://github.com/SinTan1729/matrix-basic.git
synced 2024-12-27 14:18:37 -06:00
72 lines
2.3 KiB
Rust
72 lines
2.3 KiB
Rust
#[cfg(test)]
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use crate::Matrix;
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#[test]
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fn mul_test() {
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let a = Matrix::from(vec![vec![1, 2, 4], vec![3, 4, 9]]).unwrap();
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let b = Matrix::from(vec![vec![1, 2], vec![2, 3], vec![5, 1]]).unwrap();
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let c = Matrix::from(vec![vec![25, 12], vec![56, 27]]).unwrap();
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assert_eq!(a * b, c);
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}
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#[test]
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fn add_sub_test() {
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let a = Matrix::from(vec![vec![1, 2, 3], vec![0, 1, 2]]).unwrap();
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let b = Matrix::from(vec![vec![0, 0, 1], vec![2, 1, 3]]).unwrap();
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let c = Matrix::from(vec![vec![1, 2, 4], vec![2, 2, 5]]).unwrap();
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let d = Matrix::from(vec![vec![1, 2, 2], vec![-2, 0, -1]]).unwrap();
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let e = Matrix::from(vec![vec![-1, -2, -4], vec![-2, -2, -5]]).unwrap();
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assert_eq!(a.clone() + b.clone(), c);
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assert_eq!(a - b, d);
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assert_eq!(-c, e);
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}
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#[test]
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fn det_trace_test() {
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let a = Matrix::from(vec![vec![1, 2, 0], vec![0, 3, 5], vec![0, 0, 10]]).unwrap();
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let b = Matrix::from(vec![vec![1, 2, 0], vec![0, 3, 5]]).unwrap();
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let c = Matrix::from(vec![
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vec![0.0, 0.0, 10.0],
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vec![0.0, 3.0, 5.0],
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vec![1.0, 2.0, 0.0],
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])
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.unwrap();
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assert_eq!(a.det(), Ok(30));
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assert_eq!(c.det_in_field(), Ok(-30.0));
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assert!(b.det().is_err());
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assert_eq!(a.trace(), Ok(14));
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}
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#[test]
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fn zero_one_diag_test() {
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let a = Matrix::from(vec![vec![0, 0, 0], vec![0, 0, 0]]).unwrap();
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let b = Matrix::from(vec![vec![1, 0], vec![0, 1]]).unwrap();
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assert_eq!(Matrix::<i32>::zero(2, 3), a);
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assert_eq!(Matrix::<i32>::identity(2), b);
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assert_eq!(Matrix::diagonal_matrix(vec![1, 1]), b);
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}
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#[test]
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fn echelon_test() {
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let m = Matrix::from(vec![vec![1.0, 2.0, 3.0], vec![1.0, 0.0, 1.0]]).unwrap();
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let a = Matrix::from(vec![vec![1.0, 2.0, 3.0], vec![0.0, -2.0, -2.0]]).unwrap();
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let b = Matrix::from(vec![vec![1.0, 0.0, 0.0], vec![1.0, -2.0, 0.0]]).unwrap();
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let c = Matrix::from(vec![vec![1.0, 2.0, 3.0], vec![0.0, 1.0, 1.0]]).unwrap();
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assert_eq!(m.row_echelon(), a);
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assert_eq!(m.column_echelon(), b);
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assert_eq!(m.reduced_row_echelon(), c);
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}
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#[test]
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fn conversion_test() {
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let a = Matrix::from(vec![vec![1, 2, 3], vec![0, 1, 2]]).unwrap();
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let b = Matrix::from(vec![vec![1.0, 2.0, 3.0], vec![0.0, 1.0, 2.0]]).unwrap();
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use crate::MatrixInto;
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assert_eq!(a.matrix_into(), b);
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}
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