| 1 | // Run: tsx src/__tests__/tab-switch-hydration.test.tsx |
| 2 | |
| 3 | import { JSDOM } from "jsdom"; |
| 4 | import React, { act } from "react"; |
| 5 | import { createRoot } from "react-dom/client"; |
| 6 | import type { AppBindings } from "../lib/bridge"; |
| 7 | import { useController } from "../lib/useController"; |
| 8 | import type { BalanceInfo, CheckpointMeta, ContextInfo, EffortInfo, HistoryMessage, JobView, Meta, TabMeta, WireEvent } from "../lib/types"; |
| 9 | |
| 10 | let passed = 0; |
| 11 | let failed = 0; |
| 12 | |
| 13 | function ok(value: boolean, label: string) { |
| 14 | if (value) { |
| 15 | process.stdout.write(` PASS ${label}\n`); |
| 16 | passed += 1; |
| 17 | } else { |
| 18 | process.stdout.write(` FAIL ${label}\n`); |
| 19 | failed += 1; |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | function eq(actual: unknown, expected: unknown, label: string) { |
| 24 | if (actual === expected) { |
| 25 | ok(true, label); |
| 26 | } else { |
| 27 | ok(false, `${label}: expected ${JSON.stringify(expected)}, got ${JSON.stringify(actual)}`); |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | function flushPromises(): Promise<void> { |
| 32 | return new Promise((resolve) => setTimeout(resolve, 0)); |
| 33 | } |
| 34 | |
| 35 | function deferred<T>() { |
| 36 | let resolve!: (value: T) => void; |
| 37 | let reject!: (reason?: unknown) => void; |
| 38 | const promise = new Promise<T>((res, rej) => { |
| 39 | resolve = res; |
| 40 | reject = rej; |
| 41 | }); |
| 42 | return { promise, resolve, reject }; |
| 43 | } |
| 44 | |
| 45 | async function waitFor(label: string, predicate: () => boolean) { |
| 46 | for (let attempt = 0; attempt < 30; attempt += 1) { |
| 47 | await act(async () => { |
| 48 | await flushPromises(); |
| 49 | }); |
| 50 | if (predicate()) return; |
| 51 | } |
| 52 | throw new Error(`timed out waiting for ${label}`); |
| 53 | } |
| 54 | |
| 55 | function tabMeta(id: string, overrides: Partial<TabMeta> = {}): TabMeta { |
| 56 | const workspaceRoot = `/repo/${id}`; |
| 57 | return { |
| 58 | id, |
| 59 | scope: "project", |
| 60 | workspaceRoot, |
| 61 | workspaceName: id, |
| 62 | workspacePath: workspaceRoot, |
| 63 | gitBranch: "main", |
| 64 | topicId: `topic-${id}`, |
| 65 | topicTitle: id, |
| 66 | sessionPath: `${workspaceRoot}/sessions/${id}.jsonl`, |
| 67 | label: `model-${id}`, |
| 68 | ready: true, |
| 69 | running: false, |
| 70 | mode: "normal", |
| 71 | toolApprovalMode: "ask", |
| 72 | tokenMode: "full", |
| 73 | active: false, |
| 74 | cwd: workspaceRoot, |
| 75 | ...overrides, |
| 76 | }; |
| 77 | } |
| 78 | |
| 79 | function metaFor(tab: TabMeta): Meta { |
| 80 | return { |
| 81 | label: tab.label, |
| 82 | ready: tab.ready, |
| 83 | startupErr: tab.startupErr, |
| 84 | eventChannel: "agent:event", |
| 85 | cwd: tab.cwd || tab.workspaceRoot, |
| 86 | workspaceRoot: tab.workspaceRoot, |
| 87 | workspaceName: tab.workspaceName, |
| 88 | workspacePath: tab.workspacePath, |
| 89 | gitBranch: tab.gitBranch, |
| 90 | autoApproveTools: false, |
| 91 | bypass: false, |
| 92 | collaborationMode: tab.collaborationMode ?? "normal", |
| 93 | toolApprovalMode: tab.toolApprovalMode ?? "ask", |
| 94 | tokenMode: tab.tokenMode ?? "full", |
| 95 | goal: "", |
| 96 | goalStatus: "stopped", |
| 97 | }; |
| 98 | } |
| 99 | |
| 100 | function userMessage(content: string): HistoryMessage { |
| 101 | return { role: "user", content }; |
| 102 | } |
| 103 | |
| 104 | console.log("\ntab switch hydration"); |
| 105 | |
| 106 | const dom = new JSDOM("<!doctype html><html><body><div id=\"root\"></div></body></html>", { |
| 107 | pretendToBeVisual: true, |
| 108 | url: "http://localhost/", |
| 109 | }); |
| 110 | (globalThis as typeof globalThis & { IS_REACT_ACT_ENVIRONMENT: boolean }).IS_REACT_ACT_ENVIRONMENT = true; |
| 111 | globalThis.window = dom.window as unknown as Window & typeof globalThis; |
| 112 | globalThis.document = dom.window.document; |
| 113 | Object.defineProperty(globalThis, "navigator", { configurable: true, value: dom.window.navigator }); |
| 114 | globalThis.Node = dom.window.Node; |
| 115 | globalThis.HTMLElement = dom.window.HTMLElement; |
| 116 | globalThis.Event = dom.window.Event; |
| 117 | globalThis.CustomEvent = dom.window.CustomEvent; |
| 118 | globalThis.KeyboardEvent = dom.window.KeyboardEvent; |
| 119 | globalThis.MouseEvent = dom.window.MouseEvent; |
| 120 | globalThis.localStorage = dom.window.localStorage; |
| 121 | globalThis.requestAnimationFrame = dom.window.requestAnimationFrame.bind(dom.window); |
| 122 | globalThis.cancelAnimationFrame = dom.window.cancelAnimationFrame.bind(dom.window); |
| 123 | |
| 124 | const context: ContextInfo = { used: 12, window: 100, sessionTokens: 12 }; |
| 125 | const effort: EffortInfo = { supported: true, current: "auto", default: "auto", levels: ["auto"] }; |
| 126 | const balance: BalanceInfo = { available: false, display: "" }; |
| 127 | const jobs: JobView[] = []; |
| 128 | const checkpoints: CheckpointMeta[] = []; |
| 129 | const tabA = tabMeta("tab-a", { active: true }); |
| 130 | const tabB = tabMeta("tab-b"); |
| 131 | const tabC = tabMeta("tab-c"); |
| 132 | const tabD = tabMeta("tab-d"); |
| 133 | const tabE = tabMeta("tab-e"); |
| 134 | const tabF = tabMeta("tab-f"); |
| 135 | const tabG = tabMeta("tab-g"); |
| 136 | const tabH = tabMeta("tab-h"); |
| 137 | const tabI = tabMeta("tab-i", { running: true, pendingPrompt: true, cancellable: true }); |
| 138 | const tabJ = tabMeta("tab-j"); |
| 139 | let backendActiveId = "tab-a"; |
| 140 | const historyB = deferred<HistoryMessage[]>(); |
| 141 | const historyD = deferred<HistoryMessage[]>(); |
| 142 | let metaH = deferred<Meta>(); |
| 143 | let historyH = deferred<HistoryMessage[]>(); |
| 144 | const contextDGate = deferred<ContextInfo>(); |
| 145 | const setActiveBGate = deferred<void>(); |
| 146 | const setActiveEGate = deferred<void>(); |
| 147 | const setActiveFGate = deferred<void>(); |
| 148 | const staleSwitchFGate = deferred<void>(); |
| 149 | const staleSwitchReassertGGate = deferred<void>(); |
| 150 | const submitTabCGate = deferred<void>(); |
| 151 | const forkResultGate = deferred<void>(); |
| 152 | const staleForkResultGate = deferred<void>(); |
| 153 | const staleForkReassertGGate = deferred<void>(); |
| 154 | const historyCalls: string[] = []; |
| 155 | const cancelCalls: string[] = []; |
| 156 | let contextDCalls = 0; |
| 157 | let metaHCalls = 0; |
| 158 | let holdNextContextForD = false; |
| 159 | let holdNextMetaForH = false; |
| 160 | let holdNextHistoryForH = false; |
| 161 | let setActiveCalls = 0; |
| 162 | let newSessionCalls = 0; |
| 163 | const newSessionTargets: string[] = []; |
| 164 | let replayPendingPromptCalls = 0; |
| 165 | let failSetActiveFor = ""; |
| 166 | let holdNextForkResult = false; |
| 167 | let forkStarted = false; |
| 168 | let holdStaleSwitchF = false; |
| 169 | let holdStaleSwitchReassertG = false; |
| 170 | let staleSwitchReassertGStarted = false; |
| 171 | let holdStaleForkResult = false; |
| 172 | let staleForkStarted = false; |
| 173 | let holdStaleForkReassertG = false; |
| 174 | let staleForkReassertGStarted = false; |
| 175 | const runningTabs = new Set<string>(); |
| 176 | const tabsById = new Map([tabA, tabB, tabC, tabD, tabE, tabF, tabG, tabH, tabI].map((tab) => [tab.id, tab])); |
| 177 | const eventHandlers: Array<(e: WireEvent) => void> = []; |
| 178 | const readyHandlers: Array<(tabId?: string) => void> = []; |
| 179 | |
| 180 | function currentTabs(): TabMeta[] { |
| 181 | return Array.from(tabsById.values()).map((tab) => { |
| 182 | const running = runningTabs.has(tab.id); |
| 183 | return { ...tab, active: tab.id === backendActiveId, running, cancellable: running }; |
| 184 | }); |
| 185 | } |
| 186 | |
| 187 | window.runtime = { |
| 188 | EventsOn: (name: string, cb: (...data: unknown[]) => void) => { |
| 189 | if (name === "agent:event") eventHandlers.push(cb as (e: WireEvent) => void); |
| 190 | if (name === "agent:ready") readyHandlers.push(cb as (tabId?: string) => void); |
| 191 | return () => {}; |
| 192 | }, |
| 193 | BrowserOpenURL: () => {}, |
| 194 | }; |
| 195 | window.go = { |
| 196 | main: { |
| 197 | App: { |
| 198 | ListTabs: async () => currentTabs(), |
| 199 | MetaForTab: async (tabID: string) => { |
| 200 | if (tabID === "tab-h" && holdNextMetaForH) { |
| 201 | metaHCalls += 1; |
| 202 | holdNextMetaForH = false; |
| 203 | return metaH.promise; |
| 204 | } |
| 205 | return metaFor(tabsById.get(tabID) ?? tabA); |
| 206 | }, |
| 207 | ContextUsageForTab: async (tabID: string) => { |
| 208 | if (tabID === "tab-d" && holdNextContextForD) { |
| 209 | contextDCalls += 1; |
| 210 | holdNextContextForD = false; |
| 211 | return contextDGate.promise; |
| 212 | } |
| 213 | if (tabID === "tab-d") contextDCalls += 1; |
| 214 | return context; |
| 215 | }, |
| 216 | EffortForTab: async () => effort, |
| 217 | BalanceForTab: async () => balance, |
| 218 | JobsForTab: async () => jobs, |
| 219 | CheckpointsForTab: async () => checkpoints, |
| 220 | HistoryForTab: async (tabID: string) => { |
| 221 | historyCalls.push(tabID); |
| 222 | if (tabID === "tab-b") return historyB.promise; |
| 223 | if (tabID === "tab-d") return historyD.promise; |
| 224 | if (tabID === "tab-e") return [userMessage("fork E")]; |
| 225 | if (tabID === "tab-g") return [userMessage("history G")]; |
| 226 | if (tabID === "tab-h" && holdNextHistoryForH) { |
| 227 | holdNextHistoryForH = false; |
| 228 | return historyH.promise; |
| 229 | } |
| 230 | if (tabID === "tab-h") return [userMessage("history H")]; |
| 231 | if (tabID === "tab-i") return [userMessage("fork I")]; |
| 232 | if (tabID === "tab-j") return [userMessage("fork J")]; |
| 233 | return [userMessage("cached A")]; |
| 234 | }, |
| 235 | HistoryPageForTab: async (tabID: string) => { |
| 236 | const messages = await window.go.main.App.HistoryForTab(tabID); |
| 237 | return { messages, startTurn: 0, endTurn: messages.filter((message) => message.role === "user").length, totalTurns: messages.filter((message) => message.role === "user").length, hasOlder: false }; |
| 238 | }, |
| 239 | HistoryCheckpointTurnsForTab: async () => [], |
| 240 | OpenProjectTab: async (workspaceRoot: string, topicId: string) => { |
| 241 | const target = Array.from(tabsById.values()).find((tab) => tab.workspaceRoot === workspaceRoot && tab.topicId === topicId) ?? tabD; |
| 242 | backendActiveId = target.id; |
| 243 | return { ...target, active: true }; |
| 244 | }, |
| 245 | ActivateTopic: async (_scope: string, workspaceRoot: string, topicId: string) => { |
| 246 | const target = Array.from(tabsById.values()).find((tab) => tab.workspaceRoot === workspaceRoot && tab.topicId === topicId) ?? tabG; |
| 247 | backendActiveId = target.id; |
| 248 | return { ...target, active: true }; |
| 249 | }, |
| 250 | NewSession: async () => { |
| 251 | newSessionCalls += 1; |
| 252 | }, |
| 253 | NewSessionForTab: async (tabID: string) => { |
| 254 | newSessionCalls += 1; |
| 255 | newSessionTargets.push(tabID); |
| 256 | }, |
| 257 | Fork: async () => { |
| 258 | tabsById.set("tab-e", tabE); |
| 259 | backendActiveId = "tab-e"; |
| 260 | runningTabs.add("tab-e"); |
| 261 | return { ...tabE, active: true, running: true }; |
| 262 | }, |
| 263 | ForkForTab: async () => { |
| 264 | const fork = holdNextForkResult || holdStaleForkResult ? tabJ : tabE; |
| 265 | tabsById.set(fork.id, fork); |
| 266 | backendActiveId = fork.id; |
| 267 | runningTabs.add(fork.id); |
| 268 | if (holdNextForkResult) { |
| 269 | holdNextForkResult = false; |
| 270 | forkStarted = true; |
| 271 | await forkResultGate.promise; |
| 272 | } |
| 273 | if (holdStaleForkResult) { |
| 274 | holdStaleForkResult = false; |
| 275 | staleForkStarted = true; |
| 276 | await staleForkResultGate.promise; |
| 277 | } |
| 278 | return { ...fork, active: true, running: true }; |
| 279 | }, |
| 280 | ReplayPendingPrompts: async () => { |
| 281 | replayPendingPromptCalls += 1; |
| 282 | const active = tabsById.get(backendActiveId); |
| 283 | if (!active?.pendingPrompt) return; |
| 284 | for (const handler of eventHandlers) { |
| 285 | handler({ |
| 286 | kind: "approval_request", |
| 287 | tabId: backendActiveId, |
| 288 | approval: { id: `pending-${backendActiveId}`, tool: "bash", subject: `pending ${backendActiveId}` }, |
| 289 | }); |
| 290 | } |
| 291 | }, |
| 292 | SetActiveTab: async (tabID: string) => { |
| 293 | setActiveCalls += 1; |
| 294 | if (tabID === "tab-b") await setActiveBGate.promise; |
| 295 | if (tabID === "tab-e") await setActiveEGate.promise; |
| 296 | if (tabID === "tab-f") await setActiveFGate.promise; |
| 297 | if (tabID === "tab-f" && holdStaleSwitchF) { |
| 298 | holdStaleSwitchF = false; |
| 299 | await staleSwitchFGate.promise; |
| 300 | } |
| 301 | if (tabID === "tab-g" && holdStaleSwitchReassertG) { |
| 302 | holdStaleSwitchReassertG = false; |
| 303 | staleSwitchReassertGStarted = true; |
| 304 | await staleSwitchReassertGGate.promise; |
| 305 | } |
| 306 | if (tabID === "tab-g" && holdStaleForkReassertG) { |
| 307 | holdStaleForkReassertG = false; |
| 308 | staleForkReassertGStarted = true; |
| 309 | await staleForkReassertGGate.promise; |
| 310 | } |
| 311 | if (tabID === failSetActiveFor) throw new Error("persist failed"); |
| 312 | backendActiveId = tabID; |
| 313 | }, |
| 314 | CancelTab: async (tabID: string) => { |
| 315 | cancelCalls.push(tabID); |
| 316 | runningTabs.delete(tabID); |
| 317 | }, |
| 318 | SubmitToTab: async (tabID: string) => { |
| 319 | runningTabs.add(tabID); |
| 320 | if (tabID === "tab-c") await submitTabCGate.promise; |
| 321 | }, |
| 322 | SubmitDisplayToTab: async (tabID: string) => { |
| 323 | runningTabs.add(tabID); |
| 324 | }, |
| 325 | } as Partial<AppBindings> as AppBindings, |
| 326 | }, |
| 327 | }; |
| 328 | |
| 329 | type Controller = ReturnType<typeof useController>; |
| 330 | let controller: Controller | undefined; |
| 331 | |
| 332 | function Probe() { |
| 333 | controller = useController(); |
| 334 | return null; |
| 335 | } |
| 336 | |
| 337 | const rootEl = document.getElementById("root"); |
| 338 | if (!rootEl) throw new Error("missing root"); |
| 339 | const root = createRoot(rootEl); |
| 340 | |
| 341 | await act(async () => { |
| 342 | root.render(<Probe />); |
| 343 | await flushPromises(); |
| 344 | }); |
| 345 | await waitFor("initial active tab", () => controller?.activeTabId === "tab-a" && controller.state.items.length === 1); |
| 346 | |
| 347 | await act(async () => { |
| 348 | for (const handler of eventHandlers) { |
| 349 | handler({ kind: "approval_request", tabId: "tab-b", approval: { id: "stale-tab-b", tool: "bash", subject: "stale tab B" } }); |
| 350 | } |
| 351 | await flushPromises(); |
| 352 | }); |
| 353 | |
| 354 | let switchToB: Promise<TabMeta[] | undefined> | undefined; |
| 355 | await act(async () => { |
| 356 | switchToB = controller?.switchTab("tab-b", tabB); |
| 357 | await flushPromises(); |
| 358 | }); |
| 359 | |
| 360 | eq(setActiveCalls, 1, "SetActiveTab is called for the selected tab"); |
| 361 | eq(controller?.activeTabId, "tab-b", "switchTab updates the active tab before backend activation resolves"); |
| 362 | eq(controller?.state.meta?.label, "model-tab-b", "switchTab applies optimistic tab metadata immediately"); |
| 363 | eq(controller?.state.items.length, 0, "uncached target tab does not keep the previous transcript visible"); |
| 364 | eq(controller?.state.hydrating, true, "target tab shows lightweight hydration state while backend activation is pending"); |
| 365 | eq(controller?.state.backendActivationPending, true, "target tab gates unscoped actions while backend activation is pending"); |
| 366 | ok(!historyCalls.includes("tab-b"), "HistoryForTab is not requested before SetActiveTab completes"); |
| 367 | eq(controller?.state.approval?.id, undefined, "tab activation clears a stale approval already stored on the target tab"); |
| 368 | eq(controller?.state.running, false, "tab activation clears the stale prompt lifecycle before backend status arrives"); |
| 369 | |
| 370 | await act(async () => { |
| 371 | for (const handler of eventHandlers) { |
| 372 | handler({ kind: "approval_request", approval: { id: "old-backend-approval", tool: "bash", subject: "old backend approval" } }); |
| 373 | } |
| 374 | await flushPromises(); |
| 375 | }); |
| 376 | eq(controller?.state.approval?.id, undefined, "tab-less events stay with the confirmed backend tab during optimistic activation"); |
| 377 | eq(controller?.state.running, false, "tab-less old-backend prompts cannot lock the optimistic target tab"); |
| 378 | |
| 379 | let newSessionWhileSwitching: Promise<void> | undefined; |
| 380 | await act(async () => { |
| 381 | newSessionWhileSwitching = controller?.newSession(); |
| 382 | await flushPromises(); |
| 383 | }); |
| 384 | eq(newSessionCalls, 1, "newSession can target the selected tab before backend focus activation settles"); |
| 385 | eq(newSessionTargets.join(","), "tab-b", "newSession keeps the selected tab as its explicit target"); |
| 386 | |
| 387 | await act(async () => { |
| 388 | setActiveBGate.resolve(); |
| 389 | await switchToB; |
| 390 | await newSessionWhileSwitching; |
| 391 | await flushPromises(); |
| 392 | }); |
| 393 | eq(newSessionCalls, 1, "backend focus completion does not duplicate the scoped new-session action"); |
| 394 | await waitFor("tab-b history request", () => historyCalls.includes("tab-b")); |
| 395 | |
| 396 | const historyCallsBeforeReturnToA = historyCalls.length; |
| 397 | await act(async () => { |
| 398 | await controller?.switchTab("tab-a", tabA); |
| 399 | await flushPromises(); |
| 400 | }); |
| 401 | await waitFor("tab-a restored", () => controller?.activeTabId === "tab-a" && controller.state.items.some((item) => item.kind === "user" && item.text === "cached A")); |
| 402 | eq(historyCalls.length, historyCallsBeforeReturnToA, "cached idle tab skips history hydration when reselected"); |
| 403 | |
| 404 | await act(async () => { |
| 405 | historyB.resolve([userMessage("late B")]); |
| 406 | await historyB.promise; |
| 407 | await flushPromises(); |
| 408 | }); |
| 409 | |
| 410 | eq(controller?.activeTabId, "tab-a", "late history for another tab does not change the active tab"); |
| 411 | ok(controller?.state.items.some((item) => item.kind === "user" && item.text === "cached A") ?? false, "late history for another tab does not overwrite the active transcript"); |
| 412 | ok(!(controller?.state.items.some((item) => item.kind === "user" && item.text === "late B") ?? false), "late history stays scoped to its tab state"); |
| 413 | |
| 414 | const historyCallsBeforeFallbackSync = historyCalls.length; |
| 415 | await act(async () => { |
| 416 | for (const handler of eventHandlers) handler({ kind: "approval_request", tabId: "tab-b", approval: { id: "stale-fallback-approval", tool: "bash", subject: "stale fallback approval" } }); |
| 417 | await flushPromises(); |
| 418 | }); |
| 419 | backendActiveId = "tab-b"; |
| 420 | await act(async () => { |
| 421 | await controller?.syncActiveTab(false); |
| 422 | await flushPromises(); |
| 423 | }); |
| 424 | eq(controller?.activeTabId, "tab-b", "backend fallback sync activates the backend-selected cached tab"); |
| 425 | ok(controller?.state.items.some((item) => item.kind === "user" && item.text === "late B") ?? false, "backend fallback sync keeps the cached transcript"); |
| 426 | eq(historyCalls.length, historyCallsBeforeFallbackSync, "backend fallback sync preserves cached history instead of reloading it"); |
| 427 | eq(controller?.state.approval?.id, undefined, "backend fallback sync reconciles stale approval state"); |
| 428 | eq(controller?.state.running, false, "backend fallback sync reconciles stale running state"); |
| 429 | await act(async () => { |
| 430 | await controller?.switchTab("tab-a", tabA); |
| 431 | await flushPromises(); |
| 432 | }); |
| 433 | await waitFor("tab-a restored after fallback sync", () => controller?.activeTabId === "tab-a" && controller.state.items.some((item) => item.kind === "user" && item.text === "cached A")); |
| 434 | |
| 435 | runningTabs.add("tab-e"); |
| 436 | let switchToE: Promise<TabMeta[] | undefined> | undefined; |
| 437 | await act(async () => { |
| 438 | switchToE = controller?.switchTab("tab-e", { ...tabE, running: true, cancellable: true }); |
| 439 | await flushPromises(); |
| 440 | }); |
| 441 | eq(controller?.activeTabId, "tab-e", "switching to a backend-running tab updates the active tab immediately"); |
| 442 | eq(controller?.state.running, true, "backend-running tab restores the stop state before backend activation settles"); |
| 443 | eq(controller?.state.cancellable, true, "backend-running tab remains cancellable before backend activation settles"); |
| 444 | await act(async () => { |
| 445 | controller?.cancel(); |
| 446 | await flushPromises(); |
| 447 | }); |
| 448 | eq(cancelCalls.join(","), "tab-e", "cancel targets the backend-running tab while activation is pending"); |
| 449 | await act(async () => { |
| 450 | setActiveEGate.resolve(); |
| 451 | await switchToE; |
| 452 | await flushPromises(); |
| 453 | }); |
| 454 | eq(controller?.state.running, false, "cancelled backend-running tab reconciles to idle after activation"); |
| 455 | await act(async () => { |
| 456 | await controller?.switchTab("tab-a", tabA); |
| 457 | await flushPromises(); |
| 458 | }); |
| 459 | await waitFor("tab-a restored after backend-running switch", () => controller?.activeTabId === "tab-a" && controller.state.items.some((item) => item.kind === "user" && item.text === "cached A")); |
| 460 | |
| 461 | runningTabs.add("tab-i"); |
| 462 | const replayCallsBeforePendingSwitch = replayPendingPromptCalls; |
| 463 | await act(async () => { |
| 464 | await controller?.switchTab("tab-i", tabI); |
| 465 | await flushPromises(); |
| 466 | }); |
| 467 | eq(controller?.activeTabId, "tab-i", "switching to a prompt-blocked tab activates the requested tab"); |
| 468 | ok(replayPendingPromptCalls > replayCallsBeforePendingSwitch, "pending backend prompts are replayed after tab activation"); |
| 469 | eq(controller?.state.approval?.id, "pending-tab-i", "a genuine pending approval survives the later hydration start"); |
| 470 | eq(controller?.state.running, true, "a genuine pending approval keeps the target tab running"); |
| 471 | tabsById.set("tab-i", { ...tabI, pendingPrompt: false, running: false, cancellable: false }); |
| 472 | runningTabs.delete("tab-i"); |
| 473 | await act(async () => { |
| 474 | for (const handler of eventHandlers) handler({ kind: "turn_done", tabId: "tab-i" }); |
| 475 | await controller?.switchTab("tab-a", tabA); |
| 476 | await flushPromises(); |
| 477 | }); |
| 478 | await waitFor("tab-a restored after pending-prompt switch", () => controller?.activeTabId === "tab-a" && controller.state.items.some((item) => item.kind === "user" && item.text === "cached A")); |
| 479 | |
| 480 | let switchToF: Promise<TabMeta[] | undefined> | undefined; |
| 481 | await act(async () => { |
| 482 | switchToF = controller?.switchTab("tab-f", tabF); |
| 483 | await flushPromises(); |
| 484 | }); |
| 485 | eq(controller?.activeTabId, "tab-f", "first rapid switch activates the slow target optimistically"); |
| 486 | let switchToG: Promise<TabMeta[] | undefined> | undefined; |
| 487 | await act(async () => { |
| 488 | switchToG = controller?.switchTab("tab-g", tabG); |
| 489 | await switchToG; |
| 490 | await flushPromises(); |
| 491 | }); |
| 492 | eq(controller?.activeTabId, "tab-g", "second rapid switch wins immediately"); |
| 493 | eq(backendActiveId, "tab-g", "second rapid switch activates the backend"); |
| 494 | await act(async () => { |
| 495 | setActiveFGate.resolve(); |
| 496 | await switchToF; |
| 497 | await flushPromises(); |
| 498 | }); |
| 499 | eq(controller?.activeTabId, "tab-g", "late completion from the first rapid switch does not replace the visible tab"); |
| 500 | eq(backendActiveId, "tab-g", "late completion from the first rapid switch reasserts the last-clicked backend tab"); |
| 501 | ok(!historyCalls.includes("tab-f"), "late completion from the first rapid switch does not hydrate the stale target"); |
| 502 | |
| 503 | await act(async () => { |
| 504 | await controller?.switchTab("tab-a", tabA); |
| 505 | await flushPromises(); |
| 506 | }); |
| 507 | await waitFor("tab-a restored after rapid switch", () => controller?.activeTabId === "tab-a" && controller.state.items.some((item) => item.kind === "user" && item.text === "cached A")); |
| 508 | |
| 509 | failSetActiveFor = "tab-b"; |
| 510 | const historyCallsBeforeFailedSwitch = historyCalls.length; |
| 511 | await act(async () => { |
| 512 | await controller?.switchTab("tab-b", tabB); |
| 513 | await flushPromises(); |
| 514 | }); |
| 515 | eq(controller?.activeTabId, "tab-a", "failed backend tab switch reverts to the previous active tab"); |
| 516 | ok(controller?.state.items.some((item) => item.kind === "user" && item.text === "cached A") ?? false, "failed backend tab switch keeps the previous transcript visible"); |
| 517 | eq(historyCalls.length, historyCallsBeforeFailedSwitch, "failed backend tab switch does not hydrate the rejected target"); |
| 518 | failSetActiveFor = ""; |
| 519 | |
| 520 | await act(async () => { |
| 521 | for (const handler of eventHandlers) handler({ kind: "phase", text: "Planner is thinking", tabId: "tab-a" }); |
| 522 | for (const handler of eventHandlers) handler({ kind: "message", text: "Planner kept", reasoning: "Planner notes", tabId: "tab-a" }); |
| 523 | await flushPromises(); |
| 524 | }); |
| 525 | await waitFor("cached planner transcript", () => |
| 526 | controller?.state.items.some((item) => item.kind === "assistant" && item.text === "Planner kept" && item.reasoning === "Planner notes") ?? false |
| 527 | ); |
| 528 | const historyCallsBeforeReady = historyCalls.length; |
| 529 | await act(async () => { |
| 530 | for (const handler of readyHandlers) handler(); |
| 531 | await flushPromises(); |
| 532 | }); |
| 533 | await waitFor("ready hydration settled", () => controller?.state.hydrating === false); |
| 534 | eq(historyCalls.length, historyCallsBeforeReady, "agent ready with cached transcript skips executor-only history hydration"); |
| 535 | ok(controller?.state.items.some((item) => item.kind === "phase" && item.text === "Planner is thinking") ?? false, "agent ready keeps cached planner phase"); |
| 536 | ok(controller?.state.items.some((item) => item.kind === "assistant" && item.text === "Planner kept" && item.reasoning === "Planner notes") ?? false, "agent ready keeps cached planner answer"); |
| 537 | |
| 538 | let tabCSendResolved = false; |
| 539 | await act(async () => { |
| 540 | const sendPromise = controller?.sendToTab("tab-c", "streaming C"); |
| 541 | sendPromise?.then(() => { |
| 542 | tabCSendResolved = true; |
| 543 | }); |
| 544 | await flushPromises(); |
| 545 | }); |
| 546 | eq(tabCSendResolved, true, "sendToTab resolves after optimistic dispatch before backend submit completes"); |
| 547 | await act(async () => { |
| 548 | await controller?.switchTab("tab-c", tabC); |
| 549 | await flushPromises(); |
| 550 | }); |
| 551 | eq(controller?.activeTabId, "tab-c", "switching to a cached running tab still updates the active tab"); |
| 552 | ok(controller?.state.items.some((item) => item.kind === "user" && item.text === "streaming C") ?? false, "cached running tab keeps its optimistic transcript"); |
| 553 | ok(!historyCalls.includes("tab-c"), "cached running tab skips history hydration"); |
| 554 | await act(async () => { |
| 555 | submitTabCGate.resolve(); |
| 556 | await submitTabCGate.promise; |
| 557 | await flushPromises(); |
| 558 | }); |
| 559 | |
| 560 | holdNextContextForD = true; |
| 561 | await act(async () => { |
| 562 | await controller?.openProjectTab(tabD.workspaceRoot, tabD.topicId || ""); |
| 563 | await flushPromises(); |
| 564 | }); |
| 565 | eq(controller?.activeTabId, "tab-d", "openProjectTab activates the opened tab"); |
| 566 | eq(controller?.state.items.length, 0, "open topic keeps the new tab transcript empty while hydrating"); |
| 567 | ok(controller?.state.hydratePlaceholderItems?.some((item) => item.kind === "user" && item.text === "streaming C") ?? false, "open topic stores previous transcript only as a hydration placeholder"); |
| 568 | |
| 569 | await act(async () => { |
| 570 | historyD.resolve([userMessage("history D")]); |
| 571 | await historyD.promise; |
| 572 | await flushPromises(); |
| 573 | }); |
| 574 | eq(controller?.state.hydrating, false, "topic history clears visible hydration before ancillary phase 2 settles"); |
| 575 | await waitFor("open topic phase 2 started", () => contextDCalls === 1); |
| 576 | const contextCallsBeforeReadyD = contextDCalls; |
| 577 | const historyCallsBeforeReadyD = historyCalls.length; |
| 578 | await act(async () => { |
| 579 | for (const handler of readyHandlers) { |
| 580 | handler("tab-b"); |
| 581 | handler("tab-d"); |
| 582 | handler(); |
| 583 | } |
| 584 | await flushPromises(); |
| 585 | }); |
| 586 | eq(contextDCalls, contextCallsBeforeReadyD, "agent ready reuses in-flight open-topic hydration for the active tab"); |
| 587 | eq(historyCalls.length, historyCallsBeforeReadyD, "background ready events do not hydrate the active tab"); |
| 588 | await act(async () => { |
| 589 | contextDGate.resolve(context); |
| 590 | await contextDGate.promise; |
| 591 | await flushPromises(); |
| 592 | }); |
| 593 | eq(contextDCalls, 1, "open topic hydration issues one context request"); |
| 594 | ok(controller?.state.items.some((item) => item.kind === "user" && item.text === "history D") ?? false, "topic history replaces the hydration placeholder"); |
| 595 | eq(controller?.state.hydratePlaceholderItems?.length ?? 0, 0, "topic history clears the hydration placeholder"); |
| 596 | |
| 597 | const historyCallsBeforeReopenD = historyCalls.length; |
| 598 | await act(async () => { |
| 599 | for (const handler of eventHandlers) handler({ kind: "approval_request", tabId: "tab-d", approval: { id: "stale-approval", tool: "bash", subject: "stale approval" } }); |
| 600 | await controller?.switchTab("tab-a", tabA); |
| 601 | await flushPromises(); |
| 602 | }); |
| 603 | await act(async () => { |
| 604 | await controller?.openProjectTab(tabD.workspaceRoot, tabD.topicId || ""); |
| 605 | await flushPromises(); |
| 606 | }); |
| 607 | eq(controller?.activeTabId, "tab-d", "reopening an already hydrated topic keeps it active"); |
| 608 | ok(controller?.state.items.some((item) => item.kind === "user" && item.text === "history D") ?? false, "reopened cached topic keeps its transcript"); |
| 609 | eq(historyCalls.length, historyCallsBeforeReopenD, "reopening an already hydrated topic skips history hydration"); |
| 610 | eq(controller?.state.approval?.id, undefined, "reopening a topic reconciles stale approval state"); |
| 611 | eq(controller?.state.running, false, "reopening a topic reconciles stale running state"); |
| 612 | |
| 613 | await act(async () => { |
| 614 | await controller?.rewind(0, "fork"); |
| 615 | await flushPromises(); |
| 616 | }); |
| 617 | eq(controller?.activeTabId, "tab-e", "fork activates the forked tab"); |
| 618 | ok(controller?.state.items.some((item) => item.kind === "user" && item.text === "fork E") ?? false, "fork loads the forked transcript"); |
| 619 | eq(controller?.state.running, true, "fork reconciles backend running state after reset hydration"); |
| 620 | runningTabs.delete("tab-e"); |
| 621 | |
| 622 | const contextCallsBeforeInactiveD = contextDCalls; |
| 623 | await act(async () => { |
| 624 | await controller?.openProjectTab(tabD.workspaceRoot, tabD.topicId || ""); |
| 625 | await controller?.switchTab("tab-a", tabA); |
| 626 | await flushPromises(); |
| 627 | }); |
| 628 | await act(async () => { |
| 629 | await flushPromises(); |
| 630 | await flushPromises(); |
| 631 | }); |
| 632 | eq(contextDCalls, contextCallsBeforeInactiveD, "inactive topic skips ancillary hydration after quick tab switch"); |
| 633 | |
| 634 | holdNextForkResult = true; |
| 635 | let delayedFork: Promise<boolean> | undefined; |
| 636 | await act(async () => { |
| 637 | delayedFork = controller?.rewind(0, "fork"); |
| 638 | await flushPromises(); |
| 639 | }); |
| 640 | await waitFor("delayed fork result", () => forkStarted && backendActiveId === "tab-j"); |
| 641 | await act(async () => { |
| 642 | await controller?.switchTab("tab-d", tabD); |
| 643 | await controller?.switchTab("tab-a", tabA); |
| 644 | await flushPromises(); |
| 645 | }); |
| 646 | eq(controller?.activeTabId, "tab-a", "later A→D→A navigation returns to the source tab before fork completion"); |
| 647 | eq(backendActiveId, "tab-a", "later A→D→A navigation owns backend focus before fork completion"); |
| 648 | await act(async () => { |
| 649 | forkResultGate.resolve(); |
| 650 | await delayedFork; |
| 651 | await flushPromises(); |
| 652 | }); |
| 653 | eq(controller?.activeTabId, "tab-a", "late fork completion does not override newer ABA navigation"); |
| 654 | eq(backendActiveId, "tab-a", "late fork completion reasserts the latest backend tab"); |
| 655 | ok(!historyCalls.includes("tab-j"), "stale fork result is not hydrated as the visible tab"); |
| 656 | runningTabs.delete("tab-j"); |
| 657 | |
| 658 | tabsById.set("tab-d", { ...tabD, sessionPath: `${tabD.workspaceRoot}/sessions/next-tab-d.jsonl` }); |
| 659 | const historyCallsBeforeReboundD = historyCalls.length; |
| 660 | await act(async () => { |
| 661 | await controller?.openProjectTab(tabD.workspaceRoot, tabD.topicId || ""); |
| 662 | await flushPromises(); |
| 663 | }); |
| 664 | eq(historyCalls.length, historyCallsBeforeReboundD + 1, "rebound topic reloads history when session path changes"); |
| 665 | |
| 666 | metaH = deferred<Meta>(); |
| 667 | holdNextMetaForH = true; |
| 668 | const historyCallsBeforeSlowMeta = historyCalls.length; |
| 669 | await act(async () => { |
| 670 | await controller?.openProjectTab(tabH.workspaceRoot, tabH.topicId || ""); |
| 671 | await flushPromises(); |
| 672 | }); |
| 673 | await waitFor("slow meta tab hydrates history", () => |
| 674 | controller?.activeTabId === "tab-h" && |
| 675 | controller.state.hydrating === false && |
| 676 | (controller.state.items.some((item) => item.kind === "user" && item.text === "history H") ?? false) && |
| 677 | metaHCalls === 1 |
| 678 | ); |
| 679 | eq(historyCalls.length, historyCallsBeforeSlowMeta + 1, "slow MetaForTab does not delay the history request"); |
| 680 | eq(controller?.state.meta?.label, "model-tab-h", "slow MetaForTab leaves optimistic metadata visible while history hydrates"); |
| 681 | await act(async () => { |
| 682 | metaH.resolve({ ...metaFor(tabH), label: "fresh-model-tab-h" }); |
| 683 | await metaH.promise; |
| 684 | await flushPromises(); |
| 685 | }); |
| 686 | await waitFor("slow meta refresh applies", () => controller?.state.meta?.label === "fresh-model-tab-h"); |
| 687 | |
| 688 | metaH = deferred<Meta>(); |
| 689 | const metaHCallsBeforeStale = metaHCalls; |
| 690 | holdNextMetaForH = true; |
| 691 | await act(async () => { |
| 692 | await controller?.openProjectTab(tabH.workspaceRoot, tabH.topicId || ""); |
| 693 | await flushPromises(); |
| 694 | }); |
| 695 | await waitFor("slow meta pending before single-surface navigation", () => metaHCalls === metaHCallsBeforeStale + 1); |
| 696 | await act(async () => { |
| 697 | await controller?.activateTopic("project", tabG.workspaceRoot, tabG.topicId || ""); |
| 698 | await flushPromises(); |
| 699 | }); |
| 700 | await waitFor("single-surface activation replaces visible tab", () => |
| 701 | controller?.activeTabId === "tab-g" && |
| 702 | (controller.state.items.some((item) => item.kind === "user" && item.text === "history G") ?? false) |
| 703 | ); |
| 704 | await act(async () => { |
| 705 | metaH.resolve({ ...metaFor(tabH), label: "stale-model-tab-h" }); |
| 706 | await metaH.promise; |
| 707 | await flushPromises(); |
| 708 | }); |
| 709 | eq(controller?.activeTabId, "tab-g", "late meta from a replaced tab does not switch the visible tab"); |
| 710 | ok(controller?.state.meta?.label !== "stale-model-tab-h", "late meta from a replaced tab does not overwrite visible metadata"); |
| 711 | historyH = deferred<HistoryMessage[]>(); |
| 712 | holdNextHistoryForH = true; |
| 713 | await act(async () => { |
| 714 | await controller?.openProjectTab(tabH.workspaceRoot, tabH.topicId || ""); |
| 715 | await flushPromises(); |
| 716 | }); |
| 717 | await waitFor("reopened tab-h treats stale late meta as discarded", () => |
| 718 | controller?.activeTabId === "tab-h" && |
| 719 | controller.state.hydrating === true && |
| 720 | (controller.state.hydratePlaceholderItems?.some((item) => item.kind === "user" && item.text === "history G") ?? false) |
| 721 | ); |
| 722 | await act(async () => { |
| 723 | historyH.resolve([userMessage("history H after stale meta")]); |
| 724 | await historyH.promise; |
| 725 | await flushPromises(); |
| 726 | }); |
| 727 | await waitFor("reopened tab-h finishes after stale meta discard", () => |
| 728 | controller?.state.hydrating === false && |
| 729 | (controller.state.items.some((item) => item.kind === "user" && item.text === "history H after stale meta") ?? false) |
| 730 | ); |
| 731 | |
| 732 | // A stale repair is itself asynchronous. Force a third navigation to complete |
| 733 | // while that repair is pending and verify the repair follows the newest tab. |
| 734 | holdStaleSwitchF = true; |
| 735 | holdStaleSwitchReassertG = true; |
| 736 | let threeWaySwitchToF: Promise<TabMeta[] | undefined> | undefined; |
| 737 | await act(async () => { |
| 738 | threeWaySwitchToF = controller?.switchTab("tab-f", tabF); |
| 739 | await flushPromises(); |
| 740 | await controller?.openProjectTab(tabG.workspaceRoot, tabG.topicId || ""); |
| 741 | staleSwitchFGate.resolve(); |
| 742 | await flushPromises(); |
| 743 | }); |
| 744 | await waitFor("stale switch reassert G starts", () => staleSwitchReassertGStarted); |
| 745 | await act(async () => { |
| 746 | await controller?.openProjectTab(tabH.workspaceRoot, tabH.topicId || ""); |
| 747 | staleSwitchReassertGGate.resolve(); |
| 748 | await threeWaySwitchToF; |
| 749 | await flushPromises(); |
| 750 | }); |
| 751 | eq(controller?.activeTabId, "tab-h", "third navigation remains visible after stale switch repair"); |
| 752 | eq(backendActiveId, "tab-h", "third navigation remains backend-active after stale switch repair"); |
| 753 | |
| 754 | holdStaleForkResult = true; |
| 755 | holdStaleForkReassertG = true; |
| 756 | let threeWayFork: Promise<boolean> | undefined; |
| 757 | await act(async () => { |
| 758 | threeWayFork = controller?.rewindForTab("tab-h", 0, "fork"); |
| 759 | await flushPromises(); |
| 760 | }); |
| 761 | await waitFor("stale fork result", () => staleForkStarted && backendActiveId === "tab-j"); |
| 762 | await act(async () => { |
| 763 | await controller?.openProjectTab(tabG.workspaceRoot, tabG.topicId || ""); |
| 764 | staleForkResultGate.resolve(); |
| 765 | await flushPromises(); |
| 766 | }); |
| 767 | await waitFor("stale fork reassert G starts", () => staleForkReassertGStarted); |
| 768 | await act(async () => { |
| 769 | await controller?.openProjectTab(tabH.workspaceRoot, tabH.topicId || ""); |
| 770 | staleForkReassertGGate.resolve(); |
| 771 | await threeWayFork; |
| 772 | await flushPromises(); |
| 773 | }); |
| 774 | eq(controller?.activeTabId, "tab-h", "third navigation remains visible after stale fork repair"); |
| 775 | eq(backendActiveId, "tab-h", "third navigation remains backend-active after stale fork repair"); |
| 776 | runningTabs.delete("tab-j"); |
| 777 | |
| 778 | await act(async () => { |
| 779 | root.unmount(); |
| 780 | }); |
| 781 | dom.window.close(); |
| 782 | |
| 783 | console.log(`\n${passed} passed, ${failed} failed, ${passed + failed} total`); |
| 784 | if (failed > 0) process.exit(1); |
| 785 |