Files
WRNexusJS/packages/pubsub/test/pubsub.test.ts
T
2026-07-27 12:42:18 +05:30

47 lines
1.4 KiB
TypeScript

import { test, expect } from "bun:test";
import { createPubSub, createResilientPubSub, PresenceChannel } from "../src/index.ts";
test("publish reaches exact + wildcard subscribers", async () => {
const bus = createPubSub();
const got: string[] = [];
bus.subscribe("order:created", (m: { id: number }) => {
got.push(`exact:${m.id}`);
});
bus.subscribe("order:*", (_m, topic) => {
got.push(`prefix:${topic}`);
});
bus.subscribe("*", (_m, topic) => {
got.push(`all:${topic}`);
});
await bus.publish("order:created", { id: 7 });
await bus.publish("user:login", { id: 1 });
expect(got).toContain("exact:7");
expect(got).toContain("prefix:order:created");
expect(got).toContain("all:order:created");
expect(got).toContain("all:user:login");
expect(got).not.toContain("prefix:user:login"); // order:* doesn't match user:*
});
test("unsubscribe stops delivery", async () => {
const bus = createPubSub();
let n = 0;
const off = bus.subscribe("t", () => {
n++;
});
await bus.publish("t", 1);
off();
await bus.publish("t", 2);
expect(n).toBe(1);
});
test("resilient pubsub validates retry and presence settings", () => {
const driver = {
publish: async () => {},
subscribe: () => () => {},
};
expect(() => createResilientPubSub(driver, { retries: -1 })).toThrow("retries");
expect(() => new PresenceChannel(0)).toThrow("ttlMs");
});