release: WRNexusJS 0.8.0

packages/pubsub/test/brokers.test.ts

@@ -0,0 +1,51 @@
+import { expect, test } from "bun:test";
+import { createPubSub, kafkaDriver, natsDriver } from "../src/index.ts";
+
+test("NATS adapter serializes messages and maps namespace wildcards", async () => {
+  let subscription = "";
+  let receive: ((data: Uint8Array, subject: string) => void) | undefined;
+  const bus = createPubSub(
+    natsDriver({
+      async publish(subject, data) {
+        receive?.(data, subject);
+      },
+      subscribe(subject, handler) {
+        subscription = subject;
+        receive = handler;
+        return () => {
+          receive = undefined;
+        };
+      },
+    }),
+  );
+  const values: unknown[] = [];
+  bus.subscribe("room:*", (value) => {
+    values.push(value);
+  });
+  await bus.publish("room:one", { online: 2 });
+  expect(subscription).toBe("room:>");
+  expect(values).toEqual([{ online: 2 }]);
+});
+
+test("Kafka adapter preserves topic and JSON payload contracts", async () => {
+  let receive: ((value: string, topic: string) => void) | undefined;
+  const bus = createPubSub(
+    kafkaDriver({
+      async publish(topic, value) {
+        receive?.(value, topic);
+      },
+      subscribe(_pattern, handler) {
+        receive = handler;
+        return () => {
+          receive = undefined;
+        };
+      },
+    }),
+  );
+  let received = "";
+  bus.subscribe("events", (value, topic) => {
+    received = `${topic}:${(value as { id: number }).id}`;
+  });
+  await bus.publish("events", { id: 7 });
+  expect(received).toBe("events:7");
+});