hermes-agent/scripts/whatsapp-bridge/outbound_ids.test.mjs
Kong 6d6702ef50 fix(whatsapp-bridge): clarify FIFO outbound-id tracker semantics
Rename LRU/refresh wording to match Set insertion-order eviction and
reject non-positive maxSize at construction time.
2026-06-30 03:41:43 -07:00

68 lines
2.4 KiB
JavaScript

import test from 'node:test';
import assert from 'node:assert/strict';
import { createOutboundIdTracker } from './outbound_ids.js';
test('remembers and recognises an outbound id', () => {
const tracker = createOutboundIdTracker();
tracker.remember('msg-1');
assert.equal(tracker.has('msg-1'), true);
assert.equal(tracker.has('msg-2'), false);
});
test('ignores empty / falsy ids', () => {
const tracker = createOutboundIdTracker();
tracker.remember(undefined);
tracker.remember('');
tracker.remember(null);
assert.equal(tracker.size(), 0);
assert.equal(tracker.has(''), false);
assert.equal(tracker.has(undefined), false);
});
test('evicts oldest entry once the cap is exceeded', () => {
const tracker = createOutboundIdTracker(3);
tracker.remember('a');
tracker.remember('b');
tracker.remember('c');
tracker.remember('d'); // cap=3 → 'a' should be evicted
assert.equal(tracker.has('a'), false);
assert.equal(tracker.has('b'), true);
assert.equal(tracker.has('c'), true);
assert.equal(tracker.has('d'), true);
assert.equal(tracker.size(), 3);
});
test('cap holds across many inserts (bounded memory)', () => {
const tracker = createOutboundIdTracker(8);
for (let i = 0; i < 100; i += 1) {
tracker.remember(`id-${i}`);
}
assert.equal(tracker.size(), 8);
// Oldest (id-0..id-91) should be gone, latest 8 retained.
assert.equal(tracker.has('id-0'), false);
assert.equal(tracker.has('id-91'), false);
assert.equal(tracker.has('id-92'), true);
assert.equal(tracker.has('id-99'), true);
});
test('re-remembering an existing id does not promote it (FIFO, not LRU)', () => {
// Insertion-order semantics: re-adding doesn't move it forward in
// Set iteration order. This is intentional — we don't need recency,
// just bounded membership. Pin the actual behaviour so future
// refactors don't accidentally introduce LRU refresh semantics.
const tracker = createOutboundIdTracker(2);
tracker.remember('a');
tracker.remember('b');
tracker.remember('a'); // no-op for ordering
tracker.remember('c'); // evicts 'a' (oldest by insertion)
assert.equal(tracker.has('a'), false);
assert.equal(tracker.has('b'), true);
assert.equal(tracker.has('c'), true);
});
test('rejects non-positive maxSize', () => {
assert.throws(() => createOutboundIdTracker(0), RangeError);
assert.throws(() => createOutboundIdTracker(-1), RangeError);
assert.throws(() => createOutboundIdTracker(1.5), RangeError);
});