homeio

1import { describe, expect, it } from "vitest";
2import { toSseChunk } from "@/lib/server/realtime/sse";
3
4describe("toSseChunk", () => {
5  it("formats SSE payload with event and data", () => {
6    const chunk = toSseChunk("metrics.updated", { value: 1 });
7
8    expect(chunk).toContain("event: metrics.updated");
9    expect(chunk).toContain('data: {"value":1}');
10    expect(chunk.endsWith("\n\n")).toBe(true);
11  });
12
13  it("includes optional id", () => {
14    const chunk = toSseChunk("heartbeat", { ok: true }, { id: "abc" });
15
16    expect(chunk).toContain("id: abc");
17  });
18});
19