| 1 | import { act } from "react"; |
| 2 | import { getTranscriptStore } from "../lib/transcriptStore"; |
| 3 | import type { HistorySlice } from "../lib/types"; |
| 4 | import { historySliceFromMessages } from "./mockHistorySlice"; |
| 5 | |
| 6 | type DeferredHistory = { |
| 7 | promise: Promise<HistorySlice>; |
| 8 | resolve: (value: HistorySlice) => void; |
| 9 | }; |
| 10 | |
| 11 | type OlderHistoryState = { |
| 12 | items: Array<{ kind: string; text?: string }>; |
| 13 | historyOlderLoading: boolean; |
| 14 | historyOlderError?: string; |
| 15 | }; |
| 16 | |
| 17 | export async function verifyStaleHistoryFingerprint({ |
| 18 | olderPage, |
| 19 | loadOlderHistory, |
| 20 | historyCalls, |
| 21 | waitFor, |
| 22 | flushPromises, |
| 23 | equal, |
| 24 | getState, |
| 25 | }: { |
| 26 | olderPage: DeferredHistory; |
| 27 | loadOlderHistory: () => Promise<boolean> | undefined; |
| 28 | historyCalls: () => number; |
| 29 | waitFor: (label: string, predicate: () => boolean) => Promise<void>; |
| 30 | flushPromises: () => Promise<void>; |
| 31 | equal: (actual: unknown, expected: unknown, label: string) => void; |
| 32 | getState: () => OlderHistoryState | undefined; |
| 33 | }) { |
| 34 | let olderLoad: Promise<boolean> | undefined; |
| 35 | await act(async () => { |
| 36 | olderLoad = loadOlderHistory(); |
| 37 | await flushPromises(); |
| 38 | }); |
| 39 | await waitFor("tab-l older page request", () => historyCalls() === 2); |
| 40 | olderPage.resolve({ |
| 41 | ...historySliceFromMessages( |
| 42 | "tab-l", |
| 43 | [{ role: "user", content: "stale older L" }], |
| 44 | { cursor: "", turns: 12 }, |
| 45 | { revision: 1, digest: "digest-l-v1" }, |
| 46 | ), |
| 47 | hasOlder: true, |
| 48 | stale: true, |
| 49 | nextCursor: btoa(JSON.stringify({ v: 1, before: 2 })), |
| 50 | }); |
| 51 | await act(async () => { |
| 52 | await olderLoad; |
| 53 | await flushPromises(); |
| 54 | }); |
| 55 | const state = getState(); |
| 56 | equal(state?.items.some((item) => item.kind === "user" && item.text === "stale older L") ?? false, false, "stale older page is discarded after session fingerprint changes"); |
| 57 | equal(state?.historyOlderLoading, false, "stale older page releases its loading state"); |
| 58 | equal(state?.historyOlderError, "history snapshot expired", "stale older page enters the explicit retry state instead of silently auto-retrying"); |
| 59 | } |
| 60 | |
| 61 | export async function verifyDeferredHistoryCloseRace({ |
| 62 | olderPage, |
| 63 | loadOlderHistory, |
| 64 | closeTab, |
| 65 | historyCalls, |
| 66 | waitFor, |
| 67 | flushPromises, |
| 68 | equal, |
| 69 | sessionPath, |
| 70 | }: { |
| 71 | olderPage: DeferredHistory; |
| 72 | loadOlderHistory: () => Promise<boolean> | undefined; |
| 73 | closeTab: () => Promise<boolean>; |
| 74 | historyCalls: () => number; |
| 75 | waitFor: (label: string, predicate: () => boolean) => Promise<void>; |
| 76 | flushPromises: () => Promise<void>; |
| 77 | equal: (actual: unknown, expected: unknown, label: string) => void; |
| 78 | sessionPath: string; |
| 79 | }) { |
| 80 | let closingOlderLoad: Promise<boolean> | undefined; |
| 81 | await act(async () => { |
| 82 | closingOlderLoad = loadOlderHistory(); |
| 83 | await flushPromises(); |
| 84 | }); |
| 85 | await waitFor("tab-l closing older page request", () => historyCalls() === 3); |
| 86 | |
| 87 | const transcriptStore = getTranscriptStore(); |
| 88 | const originalSetPinned = transcriptStore.setPinned.bind(transcriptStore); |
| 89 | let releasedTabStateCommits = 0; |
| 90 | transcriptStore.setPinned = (tabId: string, pinned: boolean) => { |
| 91 | if (tabId === "tab-l") releasedTabStateCommits += 1; |
| 92 | originalSetPinned(tabId, pinned); |
| 93 | }; |
| 94 | let tabClosed = false; |
| 95 | await act(async () => { |
| 96 | tabClosed = await closeTab(); |
| 97 | await flushPromises(); |
| 98 | }); |
| 99 | equal(tabClosed, true, "tab-l closes while its older page is deferred"); |
| 100 | |
| 101 | olderPage.resolve(historySliceFromMessages( |
| 102 | "tab-l", |
| 103 | [{ role: "user", content: "late page after close" }], |
| 104 | { cursor: "", turns: 12 }, |
| 105 | { revision: 2, digest: "digest-l-v2" }, |
| 106 | )); |
| 107 | await act(async () => { |
| 108 | await closingOlderLoad; |
| 109 | await flushPromises(); |
| 110 | }); |
| 111 | transcriptStore.setPinned = originalSetPinned; |
| 112 | equal(releasedTabStateCommits, 0, "late older-page completion cannot recreate the released tab state"); |
| 113 | equal(transcriptStore.isResident("tab-l", sessionPath), false, "late older-page completion cannot restore the evicted transcript"); |
| 114 | } |
| 115 |