File size: 2,256 Bytes
7a1ad33 | 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 | /**
* @license
* Copyright 2026 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import { DeadlineTimer } from './deadlineTimer.js';
describe('DeadlineTimer', () => {
beforeEach(() => {
vi.useFakeTimers();
});
afterEach(() => {
vi.restoreAllMocks();
});
it('should abort when timeout is reached', () => {
const timer = new DeadlineTimer(1000);
const signal = timer.signal;
expect(signal.aborted).toBe(false);
vi.advanceTimersByTime(1000);
expect(signal.aborted).toBe(true);
expect(signal.reason).toBeInstanceOf(Error);
expect((signal.reason as Error).message).toBe('Timeout exceeded.');
});
it('should allow extending the deadline', () => {
const timer = new DeadlineTimer(1000);
const signal = timer.signal;
vi.advanceTimersByTime(500);
expect(signal.aborted).toBe(false);
timer.extend(1000); // New deadline is 1000 + 1000 = 2000 from start
vi.advanceTimersByTime(600); // 1100 total
expect(signal.aborted).toBe(false);
vi.advanceTimersByTime(900); // 2000 total
expect(signal.aborted).toBe(true);
});
it('should allow pausing and resuming the timer', () => {
const timer = new DeadlineTimer(1000);
const signal = timer.signal;
vi.advanceTimersByTime(500);
timer.pause();
vi.advanceTimersByTime(2000); // Wait a long time while paused
expect(signal.aborted).toBe(false);
timer.resume();
vi.advanceTimersByTime(400);
expect(signal.aborted).toBe(false);
vi.advanceTimersByTime(200); // Total active time 500 + 400 + 200 = 1100
expect(signal.aborted).toBe(true);
});
it('should abort immediately when abort() is called', () => {
const timer = new DeadlineTimer(1000);
const signal = timer.signal;
timer.abort('cancelled');
expect(signal.aborted).toBe(true);
expect(signal.reason).toBe('cancelled');
});
it('should not fire timeout if aborted manually', () => {
const timer = new DeadlineTimer(1000);
const signal = timer.signal;
timer.abort();
vi.advanceTimersByTime(1000);
// Already aborted, but shouldn't re-abort or throw
expect(signal.aborted).toBe(true);
});
});
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