92 lines
3.4 KiB
TypeScript
92 lines
3.4 KiB
TypeScript
// @vitest-environment jsdom
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import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
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import { ChimeTone } from '../../../../src/card-controller/call/tones/chime';
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import { useAudioMocks } from './test-utils';
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const audio = useAudioMocks();
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// Each strike emits a 3-layer bell stack in the order: sparkle (one octave
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// above the fundamental), fundamental, hum (one octave below). The frequencies
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// here are the per-layer values derived from each strike's fundamental.
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describe('ChimeTone', () => {
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it('should play DING (Eb5) then DOOOOONG (B4) 0.5s later', () => {
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new ChimeTone(0).start();
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// 2 strikes × 3 layers = 6 oscillators.
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expect(audio.oscillators).toHaveLength(6);
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// DING -- Eb5 (622.25Hz) at t=0.
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expect(audio.oscillators[0].frequency.value).toBe(622.25 * 2);
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expect(audio.oscillators[1].frequency.value).toBe(622.25);
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expect(audio.oscillators[2].frequency.value).toBe(622.25 / 2);
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expect(audio.oscillators[0].start).toHaveBeenCalledWith(0);
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expect(audio.oscillators[1].start).toHaveBeenCalledWith(0);
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expect(audio.oscillators[2].start).toHaveBeenCalledWith(0);
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// DOOOOONG -- B4 (493.88Hz) at t=0.5.
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expect(audio.oscillators[3].frequency.value).toBe(493.88 * 2);
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expect(audio.oscillators[4].frequency.value).toBe(493.88);
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expect(audio.oscillators[5].frequency.value).toBe(493.88 / 2);
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expect(audio.oscillators[3].start).toHaveBeenCalledWith(0.5);
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expect(audio.oscillators[4].start).toHaveBeenCalledWith(0.5);
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expect(audio.oscillators[5].start).toHaveBeenCalledWith(0.5);
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});
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it('should give DING a brighter, shorter bell envelope', () => {
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new ChimeTone(0).start();
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// Sparkle / fundamental / hum peaks for DING.
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expect(audio.gainParams[0].linearRampToValueAtTime).toHaveBeenCalledWith(0.1, 0.005);
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expect(audio.gainParams[1].linearRampToValueAtTime).toHaveBeenCalledWith(
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0.22,
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0.005,
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);
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expect(audio.gainParams[2].linearRampToValueAtTime).toHaveBeenCalledWith(
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0.08,
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0.005,
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);
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// Decay constants (sparkle fades fastest, hum lingers).
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expect(audio.gainParams[0].setTargetAtTime).toHaveBeenCalledWith(0, 0.005, 0.3);
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expect(audio.gainParams[1].setTargetAtTime).toHaveBeenCalledWith(0, 0.005, 0.8);
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expect(audio.gainParams[2].setTargetAtTime).toHaveBeenCalledWith(0, 0.005, 1.2);
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});
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it('should give DOOOOONG a fuller, longer bell envelope', () => {
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new ChimeTone(0).start();
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expect(audio.gainParams[3].linearRampToValueAtTime).toHaveBeenCalledWith(
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0.11,
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0.505,
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);
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expect(audio.gainParams[4].linearRampToValueAtTime).toHaveBeenCalledWith(
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0.28,
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0.505,
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);
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expect(audio.gainParams[5].linearRampToValueAtTime).toHaveBeenCalledWith(0.1, 0.505);
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expect(audio.gainParams[3].setTargetAtTime).toHaveBeenCalledWith(0, 0.505, 0.5);
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expect(audio.gainParams[4].setTargetAtTime).toHaveBeenCalledWith(0, 0.505, 1.3);
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expect(audio.gainParams[5].setTargetAtTime).toHaveBeenCalledWith(0, 0.505, 1.8);
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});
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describe('with fake timers', () => {
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beforeEach(() => {
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vi.useFakeTimers();
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});
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afterEach(() => {
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vi.useRealTimers();
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});
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it('should schedule the next iteration 5 seconds after a strike pair', () => {
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new ChimeTone(0).start();
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expect(audio.oscillators).toHaveLength(6);
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vi.advanceTimersByTime(5_000);
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// A second iteration ran, producing another 6 oscillators.
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expect(audio.oscillators).toHaveLength(12);
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});
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});
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});
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