beadboard/tests/lib/coalescer.test.ts
2026-03-03 16:43:42 -08:00

33 lines
1.2 KiB
TypeScript

import test from 'node:test';
import assert from 'node:assert/strict';
import { ProjectEventCoalescer } from '../../src/lib/coalescer';
test('coalescer emits latest payload once per project within debounce window', async () => {
const flushed: Array<{ projectRoot: string; payload: { value: string } }> = [];
const coalescer = new ProjectEventCoalescer<{ value: string }>(20, (event) => {
flushed.push(event);
});
coalescer.queue('C:/Repo/One', { value: 'first' });
coalescer.queue('c:\\repo\\one', { value: 'second' });
await new Promise((resolve) => setTimeout(resolve, 45));
assert.equal(flushed.length, 1);
assert.equal(flushed[0].payload.value, 'second');
});
test('coalescer keeps distinct projects separated', async () => {
const flushed: Array<{ projectRoot: string; payload: { value: string } }> = [];
const coalescer = new ProjectEventCoalescer<{ value: string }>(20, (event) => {
flushed.push(event);
});
coalescer.queue('C:/Repo/One', { value: 'one' });
coalescer.queue('D:/Repo/Two', { value: 'two' });
await new Promise((resolve) => setTimeout(resolve, 45));
assert.equal(flushed.length, 2);
});