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34 changes: 0 additions & 34 deletions package-lock.json

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1 change: 0 additions & 1 deletion package.json
Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,6 @@
"lenis": "^1.3.15",
"ogl": "^1.0.11",
"react": "^19.2.4",
"react-color-palette": "^7.3.1",
"react-dom": "^19.2.4",
"three": "^0.180.0",
"zod": "^4.1.11",
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34 changes: 34 additions & 0 deletions src/renderer/__tests__/keyStatsDedupe.test.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
/**
* keyStatsService 유휴 통지 dedupe 회귀 테스트
* 50ms 주기 틱이 값 미변경 시 리스너 fan-out을 만들지 않아야 함
*/
import { describe, it, expect, vi } from 'vitest';
import { keyStatsService } from '@utils/keyStatsService';

type ServicePrivate = {
updateStats: () => void;
timestamps: number[];
};

describe('keyStatsService 유휴 통지 dedupe', () => {
it('값이 변하지 않으면 주기 틱이 리스너를 호출하지 않는다', () => {
const listener = vi.fn();
const unsubscribe = keyStatsService.subscribe(listener);
const svc = keyStatsService as unknown as ServicePrivate;

// 구독 즉시 1회 + 첫 틱(lastNotified 초기화) 허용
svc.updateStats();
listener.mockClear();

// 유휴 200틱 (수정 전: 200회 통지)
for (let i = 0; i < 200; i += 1) svc.updateStats();
expect(listener).toHaveBeenCalledTimes(0);

// 키 입력 발생 → 통지 재개
svc.timestamps.push(Date.now());
svc.updateStats();
expect(listener).toHaveBeenCalledTimes(1);

unsubscribe();
});
});
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