import { describe, expect, it } from "vite-plus/test"; import type { GitHubEvent } from "./events.ts";import { appendEvent, readEvents } from "./event-log.ts"; const event = {  version: 1,  deliveryId: "delivery-1",  event: "pull_request",  action: "opened",  repository: { id: 1, fullName: "pingdotgg/t3code", url: null },  pullRequestNumbers: [42],  headSha: "head-sha",  actor: null,  receivedAt: null,  occurredAt: "2026-08-18T12:00:00Z",  details: {},} satisfies GitHubEvent; describe("appendEvent", () => {  it("assigns ordered sequences and deduplicates github deliveries", () => {    const first = appendEvent(undefined, event, 100);    const duplicate = appendEvent(first.state, event, 100);    const second = appendEvent(      first.state,      { ...event, deliveryId: "delivery-2", action: "synchronize" },      100,    );     expect(first.storedEvent?.sequence).toBe(1);    expect(duplicate).toMatchObject({ duplicate: true, storedEvent: null });    expect(second.storedEvent?.sequence).toBe(2);    expect(second.state.events.map(({ sequence }) => sequence)).toEqual([1, 2]);  });   it("bounds retention, filters by pull request, and rejects expired cursors", () => {    let state = appendEvent(undefined, event, 2).state;    state = appendEvent(      state,      { ...event, deliveryId: "delivery-2", pullRequestNumbers: [43] },      2,    ).state;    state = appendEvent(      state,      { ...event, deliveryId: "delivery-3", pullRequestNumbers: [42] },      2,    ).state;     expect(state.events.map(({ sequence }) => sequence)).toEqual([2, 3]);    expect(readEvents(state, { after: 2, pullRequestNumber: 42 })).toEqual({      expired: false,      future: false,      earliestSequence: 2,      latestSequence: 3,      events: [state.events[1]],    });    expect(readEvents(state, { after: 0 })).toMatchObject({      expired: true,      future: false,      earliestSequence: 2,    });    expect(readEvents(state, { after: 4 })).toMatchObject({      expired: false,      future: true,      latestSequence: 3,      events: [],    });  });});