Xiaohan-Tian
65 lines
2.4 KiB
TypeScript
65 lines
2.4 KiB
TypeScript
import { describe, it, expect, beforeEach } from 'vitest';
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import { KGProject } from '../KGProject';
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import { KGMidiTrack } from '../track/KGMidiTrack';
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import { upgradeToV7 } from './upgradeToV7';
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import { AUDIO_INTERFACE_CONSTANTS } from '../../constants/coreConstants';
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function makeProject(volumes: number[]): KGProject {
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const tracks = volumes.map((v, i) => {
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const track = new KGMidiTrack(`Track ${i}`, i);
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// Bypass setVolume clamping to simulate old 0–1 linear values stored in JSON
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(track as unknown as { volume: number }).volume = v;
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return track;
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});
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const project = new KGProject('Test', 32, 0, 125, undefined, undefined, undefined, undefined, undefined, undefined, tracks, 6);
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return project;
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}
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describe('upgradeToV7', () => {
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it('converts 1.0 linear to 0 dB', () => {
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const project = makeProject([1.0]);
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upgradeToV7(project);
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expect(project.getTracks()[0].getVolume()).toBeCloseTo(0, 5);
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});
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it('converts 0.8 linear to ~−1.94 dB', () => {
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const project = makeProject([0.8]);
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upgradeToV7(project);
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expect(project.getTracks()[0].getVolume()).toBeCloseTo(20 * Math.log10(0.8), 3);
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});
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it('converts 0.5 linear to ~−6.02 dB', () => {
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const project = makeProject([0.5]);
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upgradeToV7(project);
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expect(project.getTracks()[0].getVolume()).toBeCloseTo(-6.021, 2);
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});
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it('converts 0.0 linear to MIN_TRACK_VOLUME_DB', () => {
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const project = makeProject([0.0]);
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upgradeToV7(project);
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expect(project.getTracks()[0].getVolume()).toBe(AUDIO_INTERFACE_CONSTANTS.MIN_TRACK_VOLUME_DB);
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});
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it('clamps values that exceed MAX_TRACK_VOLUME_DB', () => {
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// linear > 1.0 gives positive dB but 2.0 is still below the +12 dB ceiling
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const project = makeProject([2.0]);
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upgradeToV7(project);
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expect(project.getTracks()[0].getVolume()).toBeCloseTo(20 * Math.log10(2.0), 5);
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});
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it('bumps project structure version to 7', () => {
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const project = makeProject([1.0]);
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upgradeToV7(project);
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expect(project.getProjectStructureVersion()).toBe(7);
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});
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it('handles multiple tracks independently', () => {
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const project = makeProject([1.0, 0.5, 0.0]);
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upgradeToV7(project);
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const tracks = project.getTracks();
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expect(tracks[0].getVolume()).toBeCloseTo(0, 5);
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expect(tracks[1].getVolume()).toBeCloseTo(-6.021, 2);
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expect(tracks[2].getVolume()).toBe(AUDIO_INTERFACE_CONSTANTS.MIN_TRACK_VOLUME_DB);
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});
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});
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