90fbf3e398
- Add a shared SSE event buffer utility and wire it into planning, subtask, mission interview, and task stream routes - Support Last-Event-ID replay semantics and robust event serialization so clients can recover missed stream events - Add a resilient client-side reconnect wrapper and surface reconnecting state in planning, subtask breakdown, and mission interview modals - Expand test coverage across API routes, SSE buffering behavior, reconnect handling, and mission/planning stream flows
70 lines
2.3 KiB
TypeScript
70 lines
2.3 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { SessionEventBuffer } from "../sse-buffer.js";
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describe("SessionEventBuffer", () => {
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it("push assigns monotonically increasing ids", () => {
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const buffer = new SessionEventBuffer(10);
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const id1 = buffer.push("thinking", JSON.stringify("a"));
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const id2 = buffer.push("question", JSON.stringify({ id: "q-1" }));
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expect(id1).toBe(1);
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expect(id2).toBe(2);
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});
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it("getEventsSince returns only events newer than lastEventId", () => {
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const buffer = new SessionEventBuffer(10);
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buffer.push("thinking", JSON.stringify("a"));
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buffer.push("thinking", JSON.stringify("b"));
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buffer.push("question", JSON.stringify({ id: "q-1" }));
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const events = buffer.getEventsSince(1);
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expect(events.map((event) => event.id)).toEqual([2, 3]);
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});
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it("drops oldest events when capacity overflows", () => {
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const buffer = new SessionEventBuffer(2);
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buffer.push("thinking", JSON.stringify("a"));
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buffer.push("thinking", JSON.stringify("b"));
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buffer.push("question", JSON.stringify({ id: "q-1" }));
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const events = buffer.getEventsSince(0);
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expect(events).toHaveLength(2);
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expect(events[0]?.id).toBe(2);
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expect(events[1]?.id).toBe(3);
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});
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it("returns empty array for an empty buffer", () => {
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const buffer = new SessionEventBuffer(10);
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expect(buffer.getEventsSince(0)).toEqual([]);
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});
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it("returns all buffered events for non-finite lastEventId", () => {
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const buffer = new SessionEventBuffer(10);
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buffer.push("thinking", JSON.stringify("a"));
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buffer.push("complete", JSON.stringify({}));
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expect(buffer.getEventsSince(Number.NaN)).toHaveLength(2);
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});
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it("supports interleaved push/read access without duplicate ids", async () => {
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const buffer = new SessionEventBuffer(20);
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await Promise.all(
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Array.from({ length: 10 }, (_, index) =>
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Promise.resolve().then(() => {
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const eventId = buffer.push("thinking", JSON.stringify(`event-${index + 1}`));
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const snapshot = buffer.getEventsSince(Math.max(0, eventId - 1));
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expect(snapshot[snapshot.length - 1]?.id).toBe(eventId);
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}),
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),
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);
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const events = buffer.getEventsSince(0);
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expect(events).toHaveLength(10);
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expect(events.map((event) => event.id)).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
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});
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});
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