forked from M-Labs/nalgebra
120 lines
3.8 KiB
Rust
120 lines
3.8 KiB
Rust
use na::{DVector, Vector2, Vector3, Vector4, Vector5};
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use std::panic;
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//
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// Should mimic calculations in Python's scipy library
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// >>>from scipy.signal import convolve
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//
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// >>> convolve([1,2,3,4],[1,2],"same")
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// array([ 1, 4, 7, 10])
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#[test]
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fn convolve_same_check() {
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// Static Tests
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let actual_s = Vector4::new(1.0, 4.0, 7.0, 10.0);
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let expected_s = Vector4::new(1.0, 2.0, 3.0, 4.0).convolve_same(Vector2::new(1.0, 2.0));
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assert!(relative_eq!(actual_s, expected_s, epsilon = 1.0e-7));
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// Dynamic Tests
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let actual_d = DVector::from_vec(vec![1.0, 4.0, 7.0, 10.0]);
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let expected_d = DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0])
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.convolve_same(DVector::from_vec(vec![1.0, 2.0]));
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assert!(relative_eq!(actual_d, expected_d, epsilon = 1.0e-7));
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// Panic Tests
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// These really only apply to dynamic sized vectors
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assert!(panic::catch_unwind(|| {
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let _ = DVector::from_vec(vec![1.0, 2.0])
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.convolve_same(DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0]));
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})
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.is_err());
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assert!(panic::catch_unwind(|| {
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let _ = DVector::<f32>::from_vec(vec![])
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.convolve_same(DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0]));
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})
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.is_err());
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assert!(panic::catch_unwind(|| {
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let _ = DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0])
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.convolve_same(DVector::<f32>::from_vec(vec![]));
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})
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.is_err());
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}
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// >>> convolve([1,2,3,4],[1,2],"full")
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// array([ 1, 4, 7, 10, 8])
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#[test]
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fn convolve_full_check() {
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// Static Tests
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let actual_s = Vector5::new(1.0, 4.0, 7.0, 10.0, 8.0);
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let expected_s = Vector4::new(1.0, 2.0, 3.0, 4.0).convolve_full(Vector2::new(1.0, 2.0));
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assert!(relative_eq!(actual_s, expected_s, epsilon = 1.0e-7));
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// Dynamic Tests
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let actual_d = DVector::from_vec(vec![1.0, 4.0, 7.0, 10.0, 8.0]);
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let expected_d = DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0])
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.convolve_full(DVector::from_vec(vec![1.0, 2.0]));
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assert!(relative_eq!(actual_d, expected_d, epsilon = 1.0e-7));
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// Panic Tests
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// These really only apply to dynamic sized vectors
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assert!(panic::catch_unwind(|| {
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DVector::from_vec(vec![1.0, 2.0])
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.convolve_full(DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0]));
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})
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.is_err());
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assert!(panic::catch_unwind(|| {
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DVector::<f32>::from_vec(vec![]).convolve_full(DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0]));
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})
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.is_err());
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assert!(panic::catch_unwind(|| {
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DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0]).convolve_full(DVector::<f32>::from_vec(vec![]));
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})
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.is_err());
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}
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// >>> convolve([1, 2, 3, 4],[1, 2],"valid")
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// array([4, 7, 10])
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#[test]
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fn convolve_valid_check() {
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// Static Tests
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let actual_s = Vector3::from_vec(vec![4.0, 7.0, 10.0]);
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let expected_s = Vector4::new(1.0, 2.0, 3.0, 4.0).convolve_valid(Vector2::new(1.0, 2.0));
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assert!(relative_eq!(actual_s, expected_s, epsilon = 1.0e-7));
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// Dynamic Tests
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let actual_d = DVector::from_vec(vec![4.0, 7.0, 10.0]);
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let expected_d = DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0])
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.convolve_valid(DVector::from_vec(vec![1.0, 2.0]));
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assert!(relative_eq!(actual_d, expected_d, epsilon = 1.0e-7));
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// Panic Tests
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// These really only apply to dynamic sized vectors
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assert!(panic::catch_unwind(|| {
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DVector::from_vec(vec![1.0, 2.0])
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.convolve_valid(DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0]));
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})
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.is_err());
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assert!(panic::catch_unwind(|| {
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DVector::<f32>::from_vec(vec![])
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.convolve_valid(DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0]));
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})
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.is_err());
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assert!(panic::catch_unwind(|| {
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DVector::from_vec(vec![1.0, 2.0, 3.0, 4.0])
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.convolve_valid(DVector::<f32>::from_vec(vec![]));
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})
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.is_err());
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}
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