ab748bfb9d
Three.js + Web Audio FFT visualizer with Constellation, Texture, Frequency and Modulation views. Vite build, node --test suite. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JABXBRLs9T6nqHKUVwoTHJ
29 lines
1.3 KiB
JavaScript
29 lines
1.3 KiB
JavaScript
import test from 'node:test';
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import assert from 'node:assert/strict';
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import { colorStyle } from '../src/color.js';
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test('each spatial axis changes the color at equal loudness', () => {
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const base = colorStyle(0, 3.5, 0, 0.5, 'spectrum', 'position');
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for (const position of [[3, 3.5, 0], [0, 6, 0], [0, 3.5, 4]]) {
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const next = colorStyle(...position, 0.5, 'spectrum', 'position');
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assert.notEqual(next.h, base.h);
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}
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});
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test('loudness changes brightness without moving spatial hue', () => {
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const quiet = colorStyle(0, 3.5, 0, 0.1, 'spectrum', 'position');
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const loud = colorStyle(0, 3.5, 0, 0.9, 'spectrum', 'position');
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assert.equal(quiet.h, loud.h);
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assert.ok(loud.energy > quiet.energy);
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});
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test('loudness mapping is independent of spatial position', () => {
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assert.deepEqual(colorStyle(-6, 0, -6, 0.4, 'ember', 'amplitude'), colorStyle(6, 7, 6, 0.4, 'ember', 'amplitude'));
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});
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test('all palette values remain finite and bounded at plot extremes', () => {
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for (const palette of ['ember', 'spectrum', 'glacier', 'orchid']) {
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for (const x of [-6, 0, 6]) for (const y of [0, 7]) for (const z of [-6, 6]) {
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const c = colorStyle(x, y, z, 1, palette, 'position');
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for (const key of ['h', 's', 'l']) assert.ok(c[key] >= 0 && c[key] <= 1);
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}
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}
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});
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