NeuralAmpModeler-rs 3.0.2

An opinionated, high-performance Neural Amp Modeler (NAM) client and core implementation in Rust for Linux/PipeWire and CLAP plugins.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134

// SPDX-License-Identifier: Apache-2.0
// Copyright (c) 2026 Fábio Henrique de Lima Silva (fhl.bsb@gmail.com) All rights reserved.

use super::*;
use crate::models::StaticModel;

fn make_lstm() -> Box<StaticModel> {
    Box::new(StaticModel::Lstm1x8(Box::default()))
}

#[test]
fn test_valid_max_value_passes() {
    let submodels = vec![(0.5, make_lstm()), (1.0, make_lstm())];
    assert!(ContainerModel::new(submodels, 48000).is_ok());
}

#[test]
fn test_reject_max_value_nan() {
    let submodels = vec![(f32::NAN, make_lstm()), (1.0, make_lstm())];
    match ContainerModel::new(submodels, 48000) {
        Ok(_) => panic!("Expected NaN rejection"),
        Err(e) => assert!(
            e.to_string().contains("invalid max_value=NaN"),
            "Expected NaN rejection, got: {e}"
        ),
    }
}

#[test]
fn test_reject_max_value_inf() {
    let submodels = vec![(f32::INFINITY, make_lstm()), (1.0, make_lstm())];
    match ContainerModel::new(submodels, 48000) {
        Ok(_) => panic!("Expected Inf rejection"),
        Err(e) => assert!(
            e.to_string().contains("invalid max_value"),
            "Expected Inf rejection, got: {e}"
        ),
    }
}

#[test]
fn test_reject_max_value_neg_inf() {
    let submodels = vec![(f32::NEG_INFINITY, make_lstm()), (1.0, make_lstm())];
    match ContainerModel::new(submodels, 48000) {
        Ok(_) => panic!("Expected -Inf rejection"),
        Err(e) => assert!(
            e.to_string().contains("invalid max_value"),
            "Expected -Inf rejection, got: {e}"
        ),
    }
}

#[test]
fn test_reject_max_value_negative() {
    let submodels = vec![(-0.5, make_lstm()), (1.0, make_lstm())];
    match ContainerModel::new(submodels, 48000) {
        Ok(_) => panic!("Expected negative rejection"),
        Err(e) => assert!(
            e.to_string().contains("invalid max_value=-0.5"),
            "Expected negative rejection, got: {e}"
        ),
    }
}

#[test]
fn test_slimmable_size_zero_selects_first_submodel() {
    let submodels = vec![(0.3, make_lstm()), (0.6, make_lstm()), (1.0, make_lstm())];
    let mut container = ContainerModel::new(submodels, 48000).unwrap();

    container.set_slimmable_size(0.0, None);

    assert_eq!(container.pending_index(), Some(0));
}

#[test]
fn test_slimmable_size_one_selects_last_submodel() {
    let submodels = vec![(0.3, make_lstm()), (0.6, make_lstm()), (1.0, make_lstm())];
    let mut container = ContainerModel::new(submodels, 48000).unwrap();

    container.set_active_index(0);

    container.set_slimmable_size(1.0, None);

    assert_eq!(container.pending_index(), Some(2));
}

#[test]
fn test_slimmable_size_between_thresholds() {
    let submodels = vec![(0.3, make_lstm()), (0.6, make_lstm()), (1.0, make_lstm())];
    let mut container = ContainerModel::new(submodels, 48000).unwrap();

    container.set_slimmable_size(0.5, None);

    assert_eq!(container.pending_index(), Some(1));
}

#[test]
fn test_slimmable_size_same_value_noop() {
    let submodels = vec![(0.3, make_lstm()), (0.6, make_lstm()), (1.0, make_lstm())];
    let mut container = ContainerModel::new(submodels, 48000).unwrap();

    container.set_slimmable_size(0.5, None);
    assert_eq!(container.pending_index(), Some(1));

    container.set_slimmable_size(0.5, None);

    assert_eq!(container.pending_index(), Some(1));
}

#[test]
fn test_slimmable_size_same_active_noop() {
    let submodels = vec![(0.3, make_lstm()), (0.6, make_lstm()), (1.0, make_lstm())];
    let mut container = ContainerModel::new(submodels, 48000).unwrap();

    container.set_active_index(0);

    container.set_slimmable_size(0.2, None);

    assert!(container.pending_index().is_none());
}

#[test]
fn test_slimmable_size_change_during_crossfade() {
    let submodels = vec![(0.3, make_lstm()), (0.6, make_lstm()), (1.0, make_lstm())];
    let mut container = ContainerModel::new(submodels, 48000).unwrap();

    container.set_slimmable_size(0.2, None);
    assert_eq!(container.pending_index(), Some(0));

    container.set_slimmable_size(0.5, None);

    assert_eq!(container.pending_index(), Some(1));
    assert_eq!(container.active_index(), 0);
}