Archived
1662 lines
82 KiB
TypeScript
1662 lines
82 KiB
TypeScript
import { mkdtemp, rm, writeFile } from "node:fs/promises";
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import { tmpdir } from "node:os";
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import { join } from "node:path";
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import { AuthStorage, ModelRegistry } from "@earendil-works/pi-coding-agent";
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import { describe, expect, it, vi } from "vitest";
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import type { GlobalSessionEvent, SessionUiEvent } from "../../shared/apiTypes.js";
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import { SessionEventHub } from "../realtime/sessionEventHub.js";
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import { PiSessionService, type PiAgentSession, type PiSessionManager, type PiSessionRuntime, type PiSessionServiceDependencies } from "./piSessionService.js";
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import type { SpawnTargetDecision } from "./spawnTargetResolver.js";
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class CapturingSessionEventHub extends SessionEventHub {
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readonly sessionEvents: { sessionId: string; event: SessionUiEvent }[] = [];
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readonly globalEvents: GlobalSessionEvent[] = [];
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override publish(sessionId: string, event: SessionUiEvent): void {
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this.sessionEvents.push({ sessionId, event });
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}
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override publishGlobal(event: GlobalSessionEvent): void {
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this.globalEvents.push(event);
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}
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}
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type SessionGateway = NonNullable<PiSessionServiceDependencies["sessionManager"]>;
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type RuntimeCreator = NonNullable<PiSessionServiceDependencies["createAgentRuntime"]>;
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interface TestSession extends PiAgentSession {
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sessionName: string | undefined;
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model: PiAgentSession["model"];
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isStreaming: boolean;
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isCompacting: boolean;
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isBashRunning: boolean;
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pendingMessageCount: number;
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getSteeringMessages: () => readonly string[];
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getFollowUpMessages: () => readonly string[];
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}
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function fakeSessionManager(cwd = "/workspace", patch: Partial<PiSessionManager> = {}): PiSessionManager {
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return {
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getCwd: () => cwd,
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getBranch: () => [],
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getLeafId: () => "leaf-1",
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...patch,
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};
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}
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function sessionRecord(id: string, cwd = "/workspace") {
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return { id, path: `/sessions/${id}.jsonl`, cwd, created: new Date("2026-01-01T00:00:00.000Z"), modified: new Date("2026-01-01T00:01:00.000Z"), messageCount: 0, firstMessage: "", allMessagesText: "" };
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}
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function sessionRef(id: string, cwd = "/workspace") {
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return { id, cwd };
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}
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function fakeRuntime(sessionId = "session-1", patch: Partial<TestSession> = {}) {
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const promptCalls: { text: string; options: unknown }[] = [];
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const customMessageCalls: { message: { customType: string; content: string; display: boolean; details?: unknown }; options: unknown }[] = [];
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const bindExtensionCalls: unknown[] = [];
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const listeners: ((event: unknown) => void)[] = [];
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const calls = { abort: 0, bindExtensions: bindExtensionCalls, clearQueue: 0, dispose: 0, prompt: promptCalls, sendCustomMessage: customMessageCalls };
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const session: TestSession = {
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sessionId,
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sessionFile: `/tmp/${sessionId}.jsonl`,
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messages: [],
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sessionName: undefined,
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model: undefined,
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thinkingLevel: "off",
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isStreaming: false,
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isCompacting: false,
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isBashRunning: false,
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pendingMessageCount: 0,
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sessionManager: fakeSessionManager(),
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modelRegistry: ModelRegistry.create(AuthStorage.inMemory()),
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scopedModels: [],
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extensionRunner: { getRegisteredCommands: () => [] },
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promptTemplates: [],
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resourceLoader: { getSkills: () => ({ skills: [] }) },
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subscribe: (listener: (event: unknown) => void) => {
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listeners.push(listener);
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return () => {
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const index = listeners.indexOf(listener);
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if (index !== -1) listeners.splice(index, 1);
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};
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},
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bindExtensions: (bindings: unknown) => {
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calls.bindExtensions.push(bindings);
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return Promise.resolve();
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},
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getSessionStats: () => ({ sessionId, totalMessages: 0, userMessages: 0, assistantMessages: 0, toolCalls: 0, tokens: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, total: 0 }, cost: 0 }),
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getContextUsage: () => undefined,
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prompt: (text: string, options: unknown) => {
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calls.prompt.push({ text, options });
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return Promise.resolve();
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},
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sendCustomMessage: (message: { customType: string; content: string; display: boolean; details?: unknown }, options: unknown) => {
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calls.sendCustomMessage.push({ message, options });
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return Promise.resolve();
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},
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executeBash: () => Promise.resolve({ output: "", exitCode: 0, cancelled: false, truncated: false }),
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abort: () => {
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calls.abort += 1;
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return Promise.resolve();
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},
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clearQueue: () => {
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calls.clearQueue += 1;
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return { steering: [], followUp: [] };
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},
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getSteeringMessages: () => [],
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getFollowUpMessages: () => [],
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setModel: () => Promise.resolve(),
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cycleModel: () => Promise.resolve(undefined),
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getAvailableThinkingLevels: () => [],
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setThinkingLevel: () => undefined,
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cycleThinkingLevel: () => undefined,
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setSessionName: (name: string) => { session.sessionName = name; },
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compact: () => Promise.resolve({ summary: "", tokensBefore: 0 }),
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getUserMessagesForForking: () => [],
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...patch,
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};
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const runtime: PiSessionRuntime = {
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cwd: session.sessionManager.getCwd(),
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session,
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setRebindSession: () => undefined,
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fork: () => Promise.resolve({ cancelled: false }),
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dispose: () => {
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calls.dispose += 1;
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return Promise.resolve();
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},
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};
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return { runtime, session, calls, emit: (event: unknown) => { for (const listener of [...listeners]) listener(event); } };
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}
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function runtimeCreator(runtime: PiSessionRuntime): RuntimeCreator {
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return async () => {
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await Promise.resolve();
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return runtime;
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};
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}
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function sessionGateway(records: ReturnType<typeof sessionRecord>[]): SessionGateway {
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return {
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create: () => fakeSessionManager(),
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list: () => Promise.resolve(records),
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open: () => fakeSessionManager(),
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};
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}
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function emptyArchiveStore(): NonNullable<PiSessionServiceDependencies["archiveStore"]> {
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return {
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list: () => Promise.resolve([]),
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get: () => Promise.resolve(undefined),
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archive: () => Promise.reject(new Error("archive should not be called")),
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restore: () => Promise.resolve(),
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isArchived: () => Promise.resolve(false),
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};
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}
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describe("PiSessionService", () => {
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it("starts sessions through an injected runtime creator", async () => {
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const hub = new CapturingSessionEventHub();
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const fake = fakeRuntime();
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let createCalls = 0;
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const createAgentRuntime: RuntimeCreator = async () => {
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createCalls += 1;
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await Promise.resolve();
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return fake.runtime;
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};
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const service = new PiSessionService(hub, {
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createAgentRuntime,
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sessionManager: sessionGateway([]),
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heartbeatIntervalMs: 60_000,
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});
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const session = await service.start("/workspace");
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expect(createCalls).toBe(1);
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expect(fake.calls.bindExtensions).toHaveLength(1);
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expect(session).toMatchObject({ id: "session-1", cwd: "/workspace", messageCount: 0 });
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expect(service.activeCount()).toBe(1);
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expect(hub.globalEvents.some((event) => event.type === "status.update" && event.status.sessionId === "session-1")).toBe(true);
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expect(hub.globalEvents.some((event) => event.type === "session.created" && event.session.id === "session-1" && event.session.cwd === "/workspace")).toBe(true);
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await service.dispose();
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expect(fake.calls.abort).toBe(1);
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expect(fake.calls.dispose).toBe(1);
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});
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it("opens legacy id-only lookups from the default session store gateway", async () => {
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const hub = new CapturingSessionEventHub();
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const fake = fakeRuntime("legacy-session");
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const open = vi.fn(() => fakeSessionManager());
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const service = new PiSessionService(hub, {
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createAgentRuntime: runtimeCreator(fake.runtime),
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sessionManager: {
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create: () => fakeSessionManager(),
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list: () => Promise.resolve([]),
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listAll: () => Promise.resolve([sessionRecord("legacy-session")]),
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open,
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},
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heartbeatIntervalMs: 60_000,
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});
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await expect(service.status("legacy")).resolves.toMatchObject({ sessionId: "legacy-session" });
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expect(open).toHaveBeenCalledWith("/sessions/legacy-session.jsonl");
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await service.dispose();
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});
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it("binds extensions again when the SDK runtime replaces the active session", async () => {
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const hub = new CapturingSessionEventHub();
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const fake = fakeRuntime("session-1");
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const replacement = fakeRuntime("session-2");
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let rebindSession: ((session: PiAgentSession) => Promise<void>) | undefined;
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fake.runtime.setRebindSession = (callback) => { rebindSession = callback; };
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const service = new PiSessionService(hub, {
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createAgentRuntime: runtimeCreator(fake.runtime),
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sessionManager: sessionGateway([]),
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heartbeatIntervalMs: 60_000,
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});
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await service.start("/workspace");
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Object.defineProperty(fake.runtime, "session", { configurable: true, value: replacement.session });
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await rebindSession?.(replacement.session);
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expect(fake.calls.bindExtensions).toHaveLength(1);
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expect(replacement.calls.bindExtensions).toHaveLength(1);
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expect(service.activeCount()).toBe(1);
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expect(await service.status("session-2")).toMatchObject({ sessionId: "session-2" });
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await service.dispose();
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});
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it("publishes extension errors reported while binding session extensions", async () => {
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const hub = new CapturingSessionEventHub();
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const fake = fakeRuntime("extension-session", {
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bindExtensions: (bindings) => {
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bindings.onError?.({ extensionPath: "pi-mcp-adapter", event: "session_start", error: "MCP failed" });
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return Promise.resolve();
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},
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});
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const service = new PiSessionService(hub, {
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createAgentRuntime: runtimeCreator(fake.runtime),
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sessionManager: sessionGateway([]),
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heartbeatIntervalMs: 60_000,
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});
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await service.start("/workspace");
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expect(hub.sessionEvents).toContainEqual({
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sessionId: "extension-session",
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event: { type: "session.error", message: "pi-mcp-adapter: MCP failed" },
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});
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const extensionErrorActivity = hub.globalEvents.find((event) => event.type === "activity.update" && event.activity.sessionId === "extension-session");
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expect(extensionErrorActivity).toMatchObject({
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type: "activity.update",
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activity: { sessionId: "extension-session", phase: "error", label: "extension error", detail: "pi-mcp-adapter: MCP failed" },
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});
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await service.dispose();
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});
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it("clears stale active activity once a previously active session becomes idle", async () => {
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vi.useFakeTimers();
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let service: PiSessionService | undefined;
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try {
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const hub = new CapturingSessionEventHub();
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let listener: ((event: unknown) => void) | undefined;
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const fake = fakeRuntime("idle-session", {
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isStreaming: true,
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subscribe: (next) => {
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listener = next;
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return () => undefined;
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},
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});
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service = new PiSessionService(hub, {
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createAgentRuntime: runtimeCreator(fake.runtime),
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sessionManager: sessionGateway([sessionRecord("idle-session")]),
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heartbeatIntervalMs: 1_000,
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});
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await service.status(sessionRef("idle-session"));
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hub.globalEvents.length = 0;
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listener?.({ type: "agent_start" });
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const activityPhases = () => hub.globalEvents
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.filter((event) => event.type === "activity.update")
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.map((event) => event.activity.phase);
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expect(activityPhases()).toEqual(["active"]);
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fake.session.isStreaming = false;
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await vi.advanceTimersByTimeAsync(1_000);
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await vi.advanceTimersByTimeAsync(1_000);
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expect(activityPhases()).toEqual(["active", "idle"]);
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} finally {
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await service?.dispose();
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vi.useRealTimers();
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}
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});
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it("publishes idle activity for SDK completion events", async () => {
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const hub = new CapturingSessionEventHub();
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let listener: ((event: unknown) => void) | undefined;
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const fake = fakeRuntime("completion-session", {
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subscribe: (next) => {
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listener = next;
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return () => undefined;
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},
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});
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const service = new PiSessionService(hub, {
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createAgentRuntime: runtimeCreator(fake.runtime),
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sessionManager: sessionGateway([sessionRecord("completion-session")]),
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heartbeatIntervalMs: 60_000,
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});
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await service.status(sessionRef("completion-session"));
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hub.globalEvents.length = 0;
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listener?.({ type: "tool_execution_end", toolName: "read", isError: false });
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expect(hub.globalEvents.filter((event) => event.type === "activity.update")).toMatchObject([
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{ activity: { sessionId: "completion-session", phase: "idle", label: "tool complete", detail: "read" } },
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]);
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await service.dispose();
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});
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it("uses injected archive and session-manager gateways for listing", async () => {
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const service = new PiSessionService(new CapturingSessionEventHub(), {
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archiveStore: {
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list: () => Promise.resolve([{ sessionId: "archived", cwd: "/workspace", archivedAt: "2026-01-01T00:00:00.000Z" }]),
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get: () => Promise.resolve(undefined),
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archive: () => Promise.resolve({ sessionId: "archived", cwd: "/workspace", archivedAt: "2026-01-01T00:00:00.000Z" }),
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restore: () => Promise.resolve(),
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isArchived: () => Promise.resolve(false),
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},
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sessionManager: {
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create: () => fakeSessionManager(),
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list: () => Promise.resolve([
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{ ...sessionRecord("active"), messageCount: 1, firstMessage: "hello", allMessagesText: "hello" },
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{ ...sessionRecord("archived"), messageCount: 2, firstMessage: "bye", allMessagesText: "bye" },
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]),
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open: () => fakeSessionManager(),
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},
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heartbeatIntervalMs: 60_000,
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});
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const sessions = await service.list("/workspace");
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expect(sessions).toHaveLength(2);
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expect(sessions[0]).toMatchObject({ id: "active" });
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expect(sessions[0]?.archived).toBeUndefined();
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expect(sessions[1]).toMatchObject({ id: "archived", archived: true, archivedAt: "2026-01-01T00:00:00.000Z" });
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await service.dispose();
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});
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it("lists archived records that have been moved out of the active session directory", async () => {
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const service = new PiSessionService(new CapturingSessionEventHub(), {
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archiveStore: {
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list: () => Promise.resolve([{ sessionId: "archived", cwd: "/workspace", archivedAt: "2026-01-02T00:00:00.000Z", originalPath: "/sessions/archived.jsonl", archivePath: "/archive/archived.jsonl", created: "2026-01-01T00:00:00.000Z", modified: "2026-01-01T00:01:00.000Z", messageCount: 2, firstMessage: "bye" }]),
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get: () => Promise.resolve(undefined),
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archive: () => { throw new Error("archive should not be called for moved records"); },
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restore: () => Promise.resolve(),
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isArchived: () => Promise.resolve(false),
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},
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sessionManager: {
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create: () => fakeSessionManager(),
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list: () => Promise.resolve([{ ...sessionRecord("active"), messageCount: 1, firstMessage: "hello", allMessagesText: "hello" }]),
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open: () => fakeSessionManager(),
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},
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heartbeatIntervalMs: 60_000,
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});
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const sessions = await service.list("/workspace");
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expect(sessions).toHaveLength(2);
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expect(sessions[0]).toMatchObject({ id: "active" });
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expect(sessions[0]?.archived).toBeUndefined();
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expect(sessions[1]).toMatchObject({ id: "archived", path: "/sessions/archived.jsonl", archived: true, archivedAt: "2026-01-02T00:00:00.000Z" });
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await service.dispose();
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});
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it("archives a session subtree within the root workspace", async () => {
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const archivedInputs: string[] = [];
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const root = sessionRecord("root");
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const directChild = { ...sessionRecord("direct-child"), path: "/sessions/direct-child.jsonl", parentSessionPath: root.path };
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const archivedChild = { ...sessionRecord("archived-child"), path: "/sessions/archived-child.jsonl", parentSessionPath: root.path };
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const grandchild = { ...sessionRecord("grandchild"), path: "/sessions/grandchild.jsonl", parentSessionPath: archivedChild.path };
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const otherWorkspaceChild = { ...sessionRecord("other-child", "/other"), path: "/sessions/other-child.jsonl", parentSessionPath: root.path };
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const fake = fakeRuntime("root", { sessionFile: root.path });
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const service = new PiSessionService(new CapturingSessionEventHub(), {
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createAgentRuntime: runtimeCreator(fake.runtime),
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archiveStore: {
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list: () => Promise.resolve([{ sessionId: "archived-child", cwd: "/workspace", archivedAt: "2026-01-02T00:00:00.000Z", originalPath: archivedChild.path, archivePath: "/archive/archived-child.jsonl", created: "2026-01-01T00:00:00.000Z", modified: "2026-01-01T00:01:00.000Z", messageCount: 1, firstMessage: "archived", parentSessionPath: root.path }]),
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get: () => Promise.resolve(undefined),
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archive: (input) => {
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archivedInputs.push(input.sessionId);
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return Promise.resolve({ sessionId: input.sessionId, cwd: input.cwd, archivedAt: "2026-01-03T00:00:00.000Z" });
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},
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restore: () => Promise.resolve(),
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isArchived: () => Promise.resolve(false),
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},
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sessionManager: {
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create: () => fakeSessionManager(),
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list: (cwd) => Promise.resolve(cwd === "/workspace" ? [root, directChild, archivedChild, grandchild] : [otherWorkspaceChild]),
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open: () => fakeSessionManager(),
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},
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heartbeatIntervalMs: 60_000,
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});
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await expect(service.archiveTree(sessionRef("root"))).resolves.toEqual({
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archived: true,
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sessionIds: ["root", "direct-child", "grandchild"],
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archivedCount: 3,
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skippedAlreadyArchivedCount: 1,
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});
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expect(archivedInputs).toEqual(["root", "direct-child", "grandchild"]);
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await service.dispose();
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});
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it("permanently deletes archived sessions through the archive store", async () => {
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const deletedSessionIds: string[] = [];
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const service = new PiSessionService(new CapturingSessionEventHub(), {
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archiveStore: {
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list: () => Promise.resolve([]),
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get: (sessionId) => Promise.resolve(sessionId === "archived" || "archived".startsWith(sessionId)
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? { sessionId: "archived", cwd: "/workspace", archivedAt: "2026-01-02T00:00:00.000Z", archivePath: "/archive/archived.jsonl" }
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: undefined),
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archive: () => { throw new Error("archive should not be called for records that already have archive files"); },
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restore: () => Promise.resolve(),
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isArchived: () => Promise.resolve(false),
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deleteArchived: (sessionId) => {
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deletedSessionIds.push(sessionId);
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return Promise.resolve();
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},
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},
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sessionManager: sessionGateway([sessionRecord("active")]),
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heartbeatIntervalMs: 60_000,
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});
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await expect(service.deleteArchived("arch")).resolves.toBeUndefined();
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await expect(service.deleteArchived("active")).rejects.toThrow("Archived session not found");
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|
|
expect(deletedSessionIds).toEqual(["archived"]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("reloads a session by closing the active runtime and re-opening it from disk", async () => {
|
|
const first = fakeRuntime("reload-session");
|
|
const second = fakeRuntime("reload-session");
|
|
const runtimes = [first.runtime, second.runtime];
|
|
let createCalls = 0;
|
|
const createAgentRuntime: RuntimeCreator = async () => {
|
|
await Promise.resolve();
|
|
const runtime = runtimes[createCalls];
|
|
createCalls += 1;
|
|
if (runtime === undefined) throw new Error("unexpected runtime creation");
|
|
return runtime;
|
|
};
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime,
|
|
sessionManager: sessionGateway([sessionRecord("reload-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
// Open once so there is an active runtime to reload.
|
|
await service.status(sessionRef("reload-session"));
|
|
expect(createCalls).toBe(1);
|
|
|
|
await expect(service.reload(sessionRef("reload-session"))).resolves.toBeUndefined();
|
|
|
|
// The original runtime was torn down and a fresh one opened from disk.
|
|
expect(first.calls.abort).toBe(1);
|
|
expect(first.calls.dispose).toBe(1);
|
|
expect(createCalls).toBe(2);
|
|
expect(service.activeCount()).toBe(1);
|
|
|
|
await service.dispose();
|
|
});
|
|
|
|
it("refuses to reload a session that has active work in progress", async () => {
|
|
const fake = fakeRuntime("busy-session", { isStreaming: true });
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("busy-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await expect(service.reload(sessionRef("busy-session"))).rejects.toThrow("Stop current session activity before reloading");
|
|
expect(fake.calls.abort).toBe(0);
|
|
expect(fake.calls.dispose).toBe(0);
|
|
|
|
await service.dispose();
|
|
});
|
|
|
|
it("refuses to reload an archived session", async () => {
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
archiveStore: {
|
|
list: () => Promise.resolve([]),
|
|
get: (sessionId) => Promise.resolve(sessionId === "archived" || "archived".startsWith(sessionId)
|
|
? { sessionId: "archived", cwd: "/workspace", archivedAt: "2026-01-02T00:00:00.000Z", archivePath: "/archive/archived.jsonl" }
|
|
: undefined),
|
|
archive: () => Promise.resolve({ sessionId: "archived", cwd: "/workspace", archivedAt: "2026-01-02T00:00:00.000Z" }),
|
|
restore: () => Promise.resolve(),
|
|
isArchived: () => Promise.resolve(true),
|
|
},
|
|
sessionManager: sessionGateway([]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await expect(service.reload(sessionRef("archived"))).rejects.toThrow("Archived sessions are read-only");
|
|
|
|
await service.dispose();
|
|
});
|
|
|
|
it("reconciles workspace activity when listing only archived sessions", async () => {
|
|
const reconciliations: { cwd: string; sessionIds: string[] }[] = [];
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
archiveStore: {
|
|
list: () => Promise.resolve([{ sessionId: "archived", cwd: "/workspace", archivedAt: "2026-01-02T00:00:00.000Z", originalPath: "/sessions/archived.jsonl", archivePath: "/archive/archived.jsonl", created: "2026-01-01T00:00:00.000Z", modified: "2026-01-01T00:01:00.000Z", messageCount: 2, firstMessage: "bye" }]),
|
|
get: () => Promise.resolve(undefined),
|
|
archive: () => { throw new Error("archive should not be called for moved records"); },
|
|
restore: () => Promise.resolve(),
|
|
isArchived: () => Promise.resolve(false),
|
|
},
|
|
sessionManager: {
|
|
create: () => fakeSessionManager(),
|
|
list: () => Promise.resolve([]),
|
|
open: () => fakeSessionManager(),
|
|
},
|
|
workspaceActivity: {
|
|
applySessionStatus: () => undefined,
|
|
applySessionActivity: () => undefined,
|
|
removeSession: () => undefined,
|
|
reconcileSessionActivity: (cwd, sessionIds) => { reconciliations.push({ cwd, sessionIds: [...sessionIds] }); },
|
|
},
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
const sessions = await service.list("/workspace");
|
|
|
|
expect(sessions).toHaveLength(1);
|
|
expect(sessions[0]).toMatchObject({ id: "archived", archived: true });
|
|
expect(reconciliations).toEqual([{ cwd: "/workspace", sessionIds: [] }]);
|
|
|
|
await service.dispose();
|
|
});
|
|
|
|
it("sends prompts to an injected runtime without touching the SDK runtime", async () => {
|
|
const fake = fakeRuntime("prompt-session");
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("prompt-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.prompt(sessionRef("prompt-session"), "Build the thing");
|
|
|
|
expect(fake.calls.prompt).toEqual([{ text: "Build the thing", options: undefined }]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("echoes the user message for direct prompts but not command-forwarded ones", async () => {
|
|
const fake = fakeRuntime("echo-session", {
|
|
resourceLoader: { getSkills: () => ({ skills: [{ name: "skill-creator" }] }) },
|
|
});
|
|
const hub = new CapturingSessionEventHub();
|
|
const service = new PiSessionService(hub, {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("echo-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.prompt(sessionRef("echo-session"), "Build the thing");
|
|
expect(hub.sessionEvents.filter(({ event }) => event.type === "message.append")).toHaveLength(1);
|
|
|
|
// The client optimistically renders command-forwarded prompts (e.g. /skill:*),
|
|
// so the server must not publish a second copy via message.append.
|
|
await service.runCommand(sessionRef("echo-session"), "/skill:skill-creator");
|
|
expect(hub.sessionEvents.filter(({ event }) => event.type === "message.append")).toHaveLength(1);
|
|
expect(fake.calls.prompt).toEqual([
|
|
{ text: "Build the thing", options: undefined },
|
|
{ text: "/skill:skill-creator", options: undefined },
|
|
]);
|
|
|
|
await service.dispose();
|
|
});
|
|
|
|
it("rejects malformed prompt text before opening the runtime", async () => {
|
|
const fake = fakeRuntime("prompt-session");
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("prompt-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await expect(service.prompt("prompt-session", undefined)).rejects.toThrow("Prompt text is required");
|
|
|
|
expect(fake.calls.prompt).toEqual([]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("includes queued message details in session status", async () => {
|
|
const fake = fakeRuntime("status-session", {
|
|
messages: [{ role: "user", content: "hello" }, { role: "assistant", content: "hi" }],
|
|
pendingMessageCount: 2,
|
|
getSteeringMessages: () => ["adjust this turn"],
|
|
getFollowUpMessages: () => ["then do this"],
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("status-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await expect(service.status(sessionRef("status-session"))).resolves.toMatchObject({
|
|
pendingMessageCount: 2,
|
|
queuedMessages: [{ kind: "steer", text: "adjust this turn" }, { kind: "followUp", text: "then do this" }],
|
|
messageCount: 2,
|
|
});
|
|
await service.dispose();
|
|
});
|
|
|
|
it("does not enqueue duplicate queued message text", async () => {
|
|
const fake = fakeRuntime("dedupe-session", {
|
|
isStreaming: true,
|
|
pendingMessageCount: 1,
|
|
getFollowUpMessages: () => ["already queued"],
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("dedupe-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.prompt(sessionRef("dedupe-session"), "already queued", "followUp");
|
|
|
|
expect(fake.calls.prompt).toEqual([]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("does not append queued prompts to the transcript before delivery", async () => {
|
|
const hub = new CapturingSessionEventHub();
|
|
const fake = fakeRuntime("queued-session", { isStreaming: true });
|
|
const service = new PiSessionService(hub, {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("queued-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.prompt(sessionRef("queued-session"), "Wait for the current turn", "followUp");
|
|
|
|
expect(fake.calls.prompt).toEqual([{ text: "Wait for the current turn", options: { streamingBehavior: "followUp" } }]);
|
|
expect(hub.sessionEvents.some(({ event }) => event.type === "message.append")).toBe(false);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("holds prompts sent during compaction until compaction finishes", async () => {
|
|
const hub = new CapturingSessionEventHub();
|
|
const fake = fakeRuntime("compacting-session", { isCompacting: true });
|
|
let resolveFirstPrompt: (() => void) | undefined;
|
|
fake.session.prompt = (text: string, options?: { streamingBehavior?: "steer" | "followUp" }) => {
|
|
fake.calls.prompt.push({ text, options });
|
|
if (options === undefined) {
|
|
fake.session.isStreaming = true;
|
|
return new Promise<void>((resolve) => { resolveFirstPrompt = resolve; });
|
|
}
|
|
return Promise.resolve();
|
|
};
|
|
const service = new PiSessionService(hub, {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("compacting-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.prompt(sessionRef("compacting-session"), "Start task 1", "followUp");
|
|
await service.prompt(sessionRef("compacting-session"), "Then task 2", "followUp");
|
|
|
|
expect(fake.calls.prompt).toEqual([]);
|
|
expect(hub.sessionEvents.some(({ event }) => event.type === "message.append")).toBe(false);
|
|
await expect(service.status(sessionRef("compacting-session"))).resolves.toMatchObject({
|
|
pendingMessageCount: 2,
|
|
queuedMessages: [{ kind: "followUp", text: "Start task 1" }, { kind: "followUp", text: "Then task 2" }],
|
|
});
|
|
|
|
fake.session.isCompacting = false;
|
|
fake.emit({ type: "compaction_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 5));
|
|
|
|
expect(fake.calls.prompt).toEqual([{ text: "Start task 1", options: undefined }]);
|
|
expect(hub.sessionEvents.some(({ event }) => event.type === "message.append" && JSON.stringify(event.message).includes("Start task 1"))).toBe(true);
|
|
await expect(service.status(sessionRef("compacting-session"))).resolves.toMatchObject({
|
|
pendingMessageCount: 1,
|
|
queuedMessages: [{ kind: "followUp", text: "Then task 2" }],
|
|
});
|
|
|
|
fake.emit({ type: "agent_start" });
|
|
await new Promise((resolve) => setTimeout(resolve, 5));
|
|
|
|
expect(fake.calls.prompt).toEqual([
|
|
{ text: "Start task 1", options: undefined },
|
|
{ text: "Then task 2", options: { streamingBehavior: "followUp" } },
|
|
]);
|
|
await expect(service.status(sessionRef("compacting-session"))).resolves.toMatchObject({
|
|
pendingMessageCount: 0,
|
|
queuedMessages: [],
|
|
});
|
|
resolveFirstPrompt?.();
|
|
await service.dispose();
|
|
});
|
|
|
|
it("clears queued messages when aborting active work", async () => {
|
|
const fake = fakeRuntime("abort-session");
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("abort-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("abort-session"));
|
|
await service.abort(sessionRef("abort-session"));
|
|
|
|
expect(fake.calls.clearQueue).toBe(1);
|
|
expect(fake.calls.abort).toBe(1);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("clears prompts queued during compaction when aborting active work", async () => {
|
|
const fake = fakeRuntime("abort-compaction-session", { isCompacting: true });
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("abort-compaction-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.prompt(sessionRef("abort-compaction-session"), "Do not deliver after abort", "followUp");
|
|
await expect(service.status(sessionRef("abort-compaction-session"))).resolves.toMatchObject({ pendingMessageCount: 1 });
|
|
await service.abort(sessionRef("abort-compaction-session"));
|
|
|
|
expect(fake.calls.clearQueue).toBe(1);
|
|
expect(fake.calls.prompt).toEqual([]);
|
|
await expect(service.status(sessionRef("abort-compaction-session"))).resolves.toMatchObject({ pendingMessageCount: 0, queuedMessages: [] });
|
|
await service.dispose();
|
|
});
|
|
|
|
it("refreshes auth state and dedupes warnings when logout removes the current model's credentials", async () => {
|
|
const hub = new CapturingSessionEventHub();
|
|
const authStorage = AuthStorage.inMemory({ anthropic: { type: "api_key", key: "sk-test" } });
|
|
const modelRegistry = ModelRegistry.inMemory(authStorage);
|
|
const model = modelRegistry.find("anthropic", "claude-3-5-sonnet-20241022");
|
|
if (model === undefined) throw new Error("Expected Anthropic model fixture");
|
|
const fake = fakeRuntime("auth-session", { model, modelRegistry });
|
|
|
|
const service = new PiSessionService(hub, {
|
|
modelRegistry,
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("auth-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("auth-session"));
|
|
hub.sessionEvents.length = 0;
|
|
hub.globalEvents.length = 0;
|
|
|
|
authStorage.logout("anthropic");
|
|
service.applyAuthChange({ removedProviderId: "anthropic" });
|
|
service.applyAuthChange({ removedProviderId: "anthropic" });
|
|
|
|
const warningCount = () => hub.sessionEvents.filter(({ event }) => event.type === "command.output" && event.level === "error" && event.message.includes("anthropic/claude-3-5-sonnet-20241022")).length;
|
|
expect(warningCount()).toBe(1);
|
|
expect(hub.globalEvents.some((event) => event.type === "status.update" && event.status.sessionId === "auth-session")).toBe(true);
|
|
|
|
authStorage.set("anthropic", { type: "api_key", key: "sk-new" });
|
|
service.applyAuthChange();
|
|
authStorage.logout("anthropic");
|
|
service.applyAuthChange({ removedProviderId: "anthropic" });
|
|
expect(warningCount()).toBe(2);
|
|
|
|
await service.dispose();
|
|
});
|
|
|
|
it("clears queued messages when stopping a session runtime", async () => {
|
|
const fake = fakeRuntime("stop-session");
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([sessionRecord("stop-session")]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("stop-session"));
|
|
service.stop(sessionRef("stop-session"));
|
|
|
|
expect(fake.calls.clearQueue).toBe(1);
|
|
await service.dispose();
|
|
});
|
|
|
|
describe("spawnSession", () => {
|
|
function spawnService(decision: SpawnTargetDecision) {
|
|
const fake = fakeRuntime("spawned-1", { sessionFile: "/tmp/spawned-1.jsonl" });
|
|
const log: { details: Record<string, unknown>; message: string }[] = [];
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([]),
|
|
spawnTargets: { resolveSpawnTarget: () => Promise.resolve(decision) },
|
|
logger: { info: (details, message) => { log.push({ details, message }); } },
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
return { fake, service, log };
|
|
}
|
|
|
|
it("starts a session at the resolved target, delivers the prompt, and logs the spawn", async () => {
|
|
const { fake, service, log } = spawnService({ allowed: true, cwd: "/workspace-feature" });
|
|
|
|
const result = await service.spawnSession({ spawningCwd: "/workspace", prompt: "continue the plan", cwd: "/workspace-feature" });
|
|
|
|
expect(result).toEqual({ sessionId: "spawned-1", cwd: "/workspace-feature" });
|
|
expect(fake.calls.prompt).toEqual([{ text: "continue the plan", options: undefined }]);
|
|
expect(log).toEqual([{ details: { spawningCwd: "/workspace", sessionId: "spawned-1", cwd: "/workspace-feature", promptLength: 17 }, message: "spawn_session started a new session" }]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("rejects an out-of-project target without starting a session", async () => {
|
|
const { fake, service } = spawnService({ allowed: false, reason: "out-of-project", allowedCwds: ["/workspace"] });
|
|
|
|
await expect(service.spawnSession({ spawningCwd: "/workspace", prompt: "go", cwd: "/elsewhere" }))
|
|
.rejects.toThrow("cwd must be a workspace of this project. Allowed: /workspace");
|
|
expect(fake.calls.prompt).toEqual([]);
|
|
expect(service.activeCount()).toBe(0);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("rejects when the spawning session is not in a registered project", async () => {
|
|
const { service } = spawnService({ allowed: false, reason: "not-registered" });
|
|
|
|
await expect(service.spawnSession({ spawningCwd: "/workspace", prompt: "go", cwd: undefined }))
|
|
.rejects.toThrow("Spawning session is not in a registered project");
|
|
await service.dispose();
|
|
});
|
|
|
|
it("is disabled when no spawn target resolver is configured", async () => {
|
|
const fake = fakeRuntime("spawned-x");
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await expect(service.spawnSession({ spawningCwd: "/workspace", prompt: "go", cwd: undefined }))
|
|
.rejects.toThrow("Spawning sessions is disabled");
|
|
await service.dispose();
|
|
});
|
|
});
|
|
|
|
describe("spawnSubsession", () => {
|
|
function subsessionService(decision: SpawnTargetDecision, heartbeatIntervalMs = 60_000) {
|
|
const parent = fakeRuntime("parent-1", { sessionFile: "/tmp/parent-1.jsonl" });
|
|
const child = fakeRuntime("child-1", { sessionFile: "/tmp/child-1.jsonl", sessionManager: fakeSessionManager("/workspace-feature") });
|
|
const created = [parent.runtime, child.runtime];
|
|
let index = 0;
|
|
const createAgentRuntime: RuntimeCreator = async () => {
|
|
await Promise.resolve();
|
|
const runtime = created[Math.min(index, created.length - 1)] ?? child.runtime;
|
|
index += 1;
|
|
return runtime;
|
|
};
|
|
const archived = new Map<string, { sessionId: string; cwd: string; archivedAt: string }>();
|
|
const archiveStore = {
|
|
list: () => Promise.resolve([...archived.values()]),
|
|
get: (sessionId: string) => Promise.resolve(archived.get(sessionId)),
|
|
archive: (input: { sessionId: string; cwd: string }) => {
|
|
const record = { sessionId: input.sessionId, cwd: input.cwd, archivedAt: "2026-01-01T00:00:00.000Z" };
|
|
archived.set(input.sessionId, record);
|
|
return Promise.resolve(record);
|
|
},
|
|
restore: (sessionId: string) => { archived.delete(sessionId); return Promise.resolve(); },
|
|
isArchived: (sessionId: string) => Promise.resolve(archived.has(sessionId)),
|
|
};
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime,
|
|
sessionManager: sessionGateway([]),
|
|
archiveStore,
|
|
spawnTargets: { resolveSpawnTarget: () => Promise.resolve(decision) },
|
|
heartbeatIntervalMs,
|
|
});
|
|
return { parent, child, service };
|
|
}
|
|
|
|
it("records the parent, delivers the prompt, and lists the tracked child", async () => {
|
|
const { parent, child, service } = subsessionService({ allowed: true, cwd: "/workspace-feature" });
|
|
await service.start("/workspace"); // bring the parent online so it can be notified
|
|
|
|
const result = await service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "parent-1", parentSessionFile: "/tmp/parent-1.jsonl", prompt: "do the slice", cwd: "/workspace-feature" });
|
|
|
|
expect(result).toEqual({ sessionId: "child-1", cwd: "/workspace-feature" });
|
|
expect(child.calls.prompt).toEqual([{ text: "do the slice", options: undefined }]);
|
|
await expect(service.listSubsessions("parent-1")).resolves.toEqual([
|
|
{ sessionId: "child-1", cwd: "/workspace-feature", status: "idle" },
|
|
]);
|
|
void parent;
|
|
await service.dispose();
|
|
});
|
|
|
|
it("persists tracked child links in the parent and child sessions", async () => {
|
|
const parentPersisted: { customType: string; data?: unknown }[] = [];
|
|
const childPersisted: { customType: string; data?: unknown }[] = [];
|
|
const parent = fakeRuntime("parent-1", {
|
|
sessionFile: "/tmp/parent-1.jsonl",
|
|
sessionManager: fakeSessionManager("/workspace", {
|
|
appendCustomEntry: (customType, data) => {
|
|
parentPersisted.push({ customType, data });
|
|
return "parent-entry-1";
|
|
},
|
|
}),
|
|
});
|
|
const child = fakeRuntime("child-1", {
|
|
sessionFile: "/tmp/child-1.jsonl",
|
|
sessionManager: fakeSessionManager("/workspace-feature", {
|
|
appendCustomEntry: (customType, data) => {
|
|
childPersisted.push({ customType, data });
|
|
return "child-entry-1";
|
|
},
|
|
}),
|
|
});
|
|
const runtimes = [parent.runtime, child.runtime];
|
|
let index = 0;
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: () => {
|
|
const runtime = runtimes[index] ?? child.runtime;
|
|
index += 1;
|
|
return Promise.resolve(runtime);
|
|
},
|
|
sessionManager: sessionGateway([]),
|
|
archiveStore: emptyArchiveStore(),
|
|
spawnTargets: { resolveSpawnTarget: () => Promise.resolve({ allowed: true, cwd: "/workspace-feature" }) },
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.start("/workspace");
|
|
await service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "parent-1", parentSessionFile: "/tmp/parent-1.jsonl", prompt: "do the slice", cwd: "/workspace-feature" });
|
|
|
|
expect(parentPersisted).toEqual([
|
|
{
|
|
customType: "pi-web.subsession.link",
|
|
data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: "/tmp/child-1.jsonl", cwd: "/workspace-feature" },
|
|
},
|
|
]);
|
|
expect(childPersisted).toEqual([
|
|
{
|
|
customType: "pi-web.subsession.spawned",
|
|
data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" },
|
|
},
|
|
]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("hydrates persisted child links after a service restart so the parent can inspect them", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const childFile = join(tempDir, "child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(childFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
|
|
try {
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getBranch: () => [{ type: "message", message: { role: "assistant", content: "finished" } }],
|
|
});
|
|
const parent = fakeRuntime("parent-1", {
|
|
sessionFile: parentFile,
|
|
sessionManager: fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: childFile, cwd: "/workspace-feature" } }],
|
|
}),
|
|
});
|
|
const child = fakeRuntime("child-1", { sessionFile: childFile, sessionManager: childManager });
|
|
const runtimes = [parent.runtime, child.runtime];
|
|
let index = 0;
|
|
const open = vi.fn(() => childManager);
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: () => {
|
|
const runtime = runtimes[index] ?? child.runtime;
|
|
index += 1;
|
|
return Promise.resolve(runtime);
|
|
},
|
|
sessionManager: { create: () => parent.session.sessionManager, list: () => Promise.resolve([]), listAll: () => Promise.resolve([]), open },
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.start("/workspace");
|
|
|
|
await expect(service.checkSubsession("parent-1", "child-1")).resolves.toEqual({
|
|
sessionId: "child-1",
|
|
cwd: "/workspace-feature",
|
|
status: "idle",
|
|
finalText: "finished",
|
|
messageCount: 1,
|
|
});
|
|
expect(open).toHaveBeenCalledWith(childFile);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("ignores stale persisted child links when the child no longer records the parent", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-stale-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const childFile = join(tempDir, "child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(childFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature" })}\n`, "utf8");
|
|
|
|
try {
|
|
const parent = fakeRuntime("parent-1", {
|
|
sessionFile: parentFile,
|
|
sessionManager: fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: childFile, cwd: "/workspace-feature" } }],
|
|
}),
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(parent.runtime),
|
|
sessionManager: { create: () => parent.session.sessionManager, list: () => Promise.resolve([]), listAll: () => Promise.resolve([]), open: () => fakeSessionManager() },
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.start("/workspace");
|
|
|
|
await expect(service.listSubsessions("parent-1")).resolves.toEqual([]);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("does not hydrate persisted links when the exact child file is unavailable", async () => {
|
|
const parentFile = "/sessions/parent-1.jsonl";
|
|
const parent = fakeRuntime("parent-1", {
|
|
sessionFile: parentFile,
|
|
sessionManager: fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: "/sessions/child-1.jsonl", cwd: "/workspace-feature" } }],
|
|
}),
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(parent.runtime),
|
|
sessionManager: { create: () => parent.session.sessionManager, list: () => Promise.resolve([]), listAll: () => Promise.resolve([]), open: () => fakeSessionManager() },
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.start("/workspace");
|
|
|
|
await expect(service.listSubsessions("parent-1")).resolves.toEqual([]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("does not hydrate parent links without a child file", async () => {
|
|
const parentFile = "/sessions/parent-1.jsonl";
|
|
const parent = fakeRuntime("parent-1", {
|
|
sessionFile: parentFile,
|
|
sessionManager: fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child", cwd: "/workspace-feature" } }],
|
|
}),
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(parent.runtime),
|
|
sessionManager: { create: () => parent.session.sessionManager, list: () => Promise.resolve([]), listAll: () => Promise.resolve([]), open: () => fakeSessionManager() },
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.start("/workspace");
|
|
|
|
await expect(service.listSubsessions("parent-1")).resolves.toEqual([]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("does not invent subsession links from existing child session headers", async () => {
|
|
const parentFile = "/sessions/parent-1.jsonl";
|
|
const childRecord = { ...sessionRecord("child-1", "/workspace-feature"), path: "/sessions/child-1.jsonl", parentSessionPath: parentFile };
|
|
const parent = fakeRuntime("parent-1", {
|
|
sessionFile: parentFile,
|
|
sessionManager: fakeSessionManager("/workspace", { getEntries: () => [] }),
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(parent.runtime),
|
|
sessionManager: { create: () => parent.session.sessionManager, list: () => Promise.resolve([]), listAll: () => Promise.resolve([childRecord]), open: () => fakeSessionManager() },
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.start("/workspace");
|
|
|
|
await expect(service.listSubsessions("parent-1")).resolves.toEqual([]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("does not hydrate copied parent links when the opened parent has a different id", async () => {
|
|
const forkedParent = fakeRuntime("parent-fork-1", {
|
|
sessionFile: "/sessions/parent-fork-1.jsonl",
|
|
sessionManager: fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: "/sessions/child-1.jsonl", cwd: "/workspace-feature" } }],
|
|
}),
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(forkedParent.runtime),
|
|
sessionManager: { create: () => forkedParent.session.sessionManager, list: () => Promise.resolve([]), listAll: () => Promise.resolve([]), open: () => fakeSessionManager() },
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.start("/workspace");
|
|
|
|
await expect(service.listSubsessions("parent-fork-1")).resolves.toEqual([]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("relinks a spawned child when the child session is opened after restart", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-open-child-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const childFile = join(tempDir, "child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(childFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
|
|
try {
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getHeader: () => ({ parentSession: parentFile }),
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.spawned", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" } }],
|
|
});
|
|
const parentManager = fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: childFile, cwd: "/workspace-feature" } }],
|
|
});
|
|
const child = fakeRuntime("child-1", { sessionFile: childFile, sessionManager: childManager });
|
|
const parent = fakeRuntime("parent-1", { sessionFile: parentFile, sessionManager: parentManager });
|
|
const runtimes = [child.runtime, parent.runtime];
|
|
let index = 0;
|
|
const open = vi.fn((path: string) => path === parentFile ? parentManager : childManager);
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: () => {
|
|
const runtime = runtimes[index] ?? parent.runtime;
|
|
index += 1;
|
|
return Promise.resolve(runtime);
|
|
},
|
|
sessionManager: {
|
|
create: () => childManager,
|
|
list: () => Promise.resolve([{ ...sessionRecord("child-1", "/workspace-feature"), path: childFile, parentSessionPath: parentFile }]),
|
|
listAll: () => Promise.resolve([]),
|
|
open,
|
|
},
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("child-1", "/workspace-feature"));
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(1);
|
|
expect(parent.calls.sendCustomMessage[0]?.message.content).toContain("Subsession child-1 stopped working");
|
|
expect(open).toHaveBeenCalledWith(parentFile);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("notifies the validated parent file instead of an active prefix-matched parent id", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-prefix-parent-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const forkParentFile = join(tempDir, "parent-fork.jsonl");
|
|
const childFile = join(tempDir, "child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(forkParentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1-fork", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(childFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
|
|
try {
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getHeader: () => ({ parentSession: parentFile }),
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.spawned", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" } }],
|
|
});
|
|
const parentManager = fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: childFile, cwd: "/workspace-feature" } }],
|
|
});
|
|
const forkManager = fakeSessionManager("/workspace");
|
|
const fork = fakeRuntime("parent-1-fork", { sessionFile: forkParentFile, sessionManager: forkManager });
|
|
const child = fakeRuntime("child-1", { sessionFile: childFile, sessionManager: childManager });
|
|
const parent = fakeRuntime("parent-1", { sessionFile: parentFile, sessionManager: parentManager });
|
|
const runtimes = [fork.runtime, child.runtime, parent.runtime];
|
|
let index = 0;
|
|
const open = vi.fn((path: string) => {
|
|
if (path === parentFile) return parentManager;
|
|
if (path === forkParentFile) return forkManager;
|
|
return childManager;
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: () => {
|
|
const runtime = runtimes[index] ?? parent.runtime;
|
|
index += 1;
|
|
return Promise.resolve(runtime);
|
|
},
|
|
sessionManager: {
|
|
create: () => forkManager,
|
|
list: (cwd: string) => Promise.resolve(cwd === "/workspace"
|
|
? [{ ...sessionRecord("parent-1-fork", "/workspace"), path: forkParentFile }]
|
|
: [{ ...sessionRecord("child-1", "/workspace-feature"), path: childFile, parentSessionPath: parentFile }]),
|
|
listAll: () => Promise.resolve([]),
|
|
open,
|
|
},
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("parent-1-fork", "/workspace"));
|
|
await service.status(sessionRef("child-1", "/workspace-feature"));
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(fork.calls.sendCustomMessage).toHaveLength(0);
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(1);
|
|
expect(open).toHaveBeenCalledWith(parentFile);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("does not relink a copied child with the original session id unless the parent link names the current child file", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-copied-child-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const originalChildFile = join(tempDir, "original-child.jsonl");
|
|
const copiedChildFile = join(tempDir, "copied-child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(originalChildFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
await writeFile(copiedChildFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
|
|
try {
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getHeader: () => ({ parentSession: parentFile }),
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.spawned", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" } }],
|
|
});
|
|
const parentManager = fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: originalChildFile, cwd: "/workspace-feature" } }],
|
|
});
|
|
const child = fakeRuntime("child-1", { sessionFile: copiedChildFile, sessionManager: childManager });
|
|
const parent = fakeRuntime("parent-1", { sessionFile: parentFile, sessionManager: parentManager });
|
|
const runtimes = [child.runtime, parent.runtime];
|
|
let index = 0;
|
|
const open = vi.fn((path: string) => path === parentFile ? parentManager : childManager);
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: () => {
|
|
const runtime = runtimes[index] ?? parent.runtime;
|
|
index += 1;
|
|
return Promise.resolve(runtime);
|
|
},
|
|
sessionManager: {
|
|
create: () => childManager,
|
|
list: () => Promise.resolve([{ ...sessionRecord("child-1", "/workspace-feature"), path: copiedChildFile, parentSessionPath: parentFile }]),
|
|
listAll: () => Promise.resolve([]),
|
|
open,
|
|
},
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("child-1", "/workspace-feature"));
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(0);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("uses the verified child file instead of an active copied child with the same id", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-active-copy-child-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const originalChildFile = join(tempDir, "original-child.jsonl");
|
|
const copiedChildFile = join(tempDir, "copied-child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(originalChildFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
await writeFile(copiedChildFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
|
|
try {
|
|
const copiedManager = fakeSessionManager("/workspace-feature", {
|
|
getBranch: () => [{ type: "message", message: { role: "assistant", content: "copied child result" } }],
|
|
});
|
|
const originalManager = fakeSessionManager("/workspace-feature", {
|
|
getBranch: () => [{ type: "message", message: { role: "assistant", content: "original child result" } }],
|
|
});
|
|
const parentManager = fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: originalChildFile, cwd: "/workspace-feature" } }],
|
|
});
|
|
const copiedChild = fakeRuntime("child-1", { sessionFile: copiedChildFile, sessionManager: copiedManager, isStreaming: true });
|
|
const originalChild = fakeRuntime("child-1", { sessionFile: originalChildFile, sessionManager: originalManager });
|
|
const parent = fakeRuntime("parent-1", { sessionFile: parentFile, sessionManager: parentManager });
|
|
const createAgentRuntime: RuntimeCreator = (_createRuntime, options) => {
|
|
if (options.sessionManager === copiedManager) return Promise.resolve(copiedChild.runtime);
|
|
if (options.sessionManager === originalManager) return Promise.resolve(originalChild.runtime);
|
|
if (options.sessionManager === parentManager) return Promise.resolve(parent.runtime);
|
|
throw new Error("unexpected session manager");
|
|
};
|
|
const open = vi.fn((path: string) => {
|
|
if (path === copiedChildFile) return copiedManager;
|
|
if (path === originalChildFile) return originalManager;
|
|
if (path === parentFile) return parentManager;
|
|
throw new Error(`unexpected open path ${path}`);
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime,
|
|
sessionManager: {
|
|
create: () => parentManager,
|
|
list: (cwd: string) => Promise.resolve(cwd === "/workspace-feature" ? [{ ...sessionRecord("child-1", "/workspace-feature"), path: copiedChildFile, parentSessionPath: parentFile }] : []),
|
|
listAll: () => Promise.resolve([]),
|
|
open,
|
|
},
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("child-1", "/workspace-feature"));
|
|
await service.start("/workspace");
|
|
|
|
await expect(service.listSubsessions("parent-1", parentFile)).resolves.toEqual([
|
|
{ sessionId: "child-1", cwd: "/workspace-feature", status: "idle" },
|
|
]);
|
|
|
|
copiedChild.session.isStreaming = true;
|
|
copiedChild.emit({ type: "agent_start" });
|
|
copiedChild.session.isStreaming = false;
|
|
copiedChild.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(0);
|
|
|
|
await expect(service.checkSubsession("parent-1", "child-1", parentFile)).resolves.toMatchObject({
|
|
sessionId: "child-1",
|
|
cwd: "/workspace-feature",
|
|
status: "idle",
|
|
finalText: "original child result",
|
|
messageCount: 1,
|
|
});
|
|
const read = await service.readSubsession("parent-1", "child-1", { roles: ["assistant"] }, parentFile);
|
|
expect(read.entries[0]?.parts[0]).toMatchObject({ kind: "text", text: "original child result" });
|
|
expect(open).toHaveBeenCalledWith(originalChildFile);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("uses the verified parent file instead of an active copied parent with the same id", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-active-copy-parent-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const copiedParentFile = join(tempDir, "copied-parent.jsonl");
|
|
const childFile = join(tempDir, "child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(copiedParentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(childFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: parentFile })}\n`, "utf8");
|
|
|
|
try {
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.spawned", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" } }],
|
|
getBranch: () => [{ type: "message", message: { role: "assistant", content: "child result" } }],
|
|
});
|
|
const parentManager = fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: childFile, cwd: "/workspace-feature" } }],
|
|
});
|
|
const copiedParentManager = fakeSessionManager("/workspace", { getEntries: () => [] });
|
|
const child = fakeRuntime("child-1", { sessionFile: childFile, sessionManager: childManager });
|
|
const parent = fakeRuntime("parent-1", { sessionFile: parentFile, sessionManager: parentManager });
|
|
const copiedParent = fakeRuntime("parent-1", { sessionFile: copiedParentFile, sessionManager: copiedParentManager });
|
|
const createAgentRuntime: RuntimeCreator = (_createRuntime, options) => {
|
|
if (options.sessionManager === childManager) return Promise.resolve(child.runtime);
|
|
if (options.sessionManager === parentManager) return Promise.resolve(parent.runtime);
|
|
if (options.sessionManager === copiedParentManager) return Promise.resolve(copiedParent.runtime);
|
|
throw new Error("unexpected session manager");
|
|
};
|
|
const open = vi.fn((path: string) => {
|
|
if (path === childFile) return childManager;
|
|
if (path === parentFile) return parentManager;
|
|
if (path === copiedParentFile) return copiedParentManager;
|
|
throw new Error(`unexpected open path ${path}`);
|
|
});
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime,
|
|
sessionManager: {
|
|
create: () => copiedParentManager,
|
|
list: (cwd: string) => Promise.resolve(cwd === "/workspace"
|
|
? [{ ...sessionRecord("parent-1", "/workspace"), path: copiedParentFile }]
|
|
: [{ ...sessionRecord("child-1", "/workspace-feature"), path: childFile, parentSessionPath: parentFile }]),
|
|
listAll: () => Promise.resolve([]),
|
|
open,
|
|
},
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("child-1", "/workspace-feature"));
|
|
await service.status(sessionRef("parent-1", "/workspace"));
|
|
|
|
await expect(service.listSubsessions("parent-1", copiedParentFile)).resolves.toEqual([]);
|
|
await expect(service.checkSubsession("parent-1", "child-1", copiedParentFile)).rejects.toThrow("not one of your subsessions");
|
|
await expect(service.readSubsession("parent-1", "child-1", {}, copiedParentFile)).rejects.toThrow("not one of your subsessions");
|
|
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(copiedParent.calls.sendCustomMessage).toHaveLength(0);
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(1);
|
|
expect(parent.calls.sendCustomMessage[0]?.message.content).toContain("Subsession child-1 stopped working");
|
|
expect(open).toHaveBeenCalledWith(parentFile);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("does not relink a child marker when the current child file header no longer records the parent", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-stale-child-header-"));
|
|
const parentFile = join(tempDir, "parent.jsonl");
|
|
const childFile = join(tempDir, "child.jsonl");
|
|
await writeFile(parentFile, `${JSON.stringify({ type: "session", version: 3, id: "parent-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(childFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature" })}\n`, "utf8");
|
|
|
|
try {
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getHeader: () => ({ parentSession: parentFile }),
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.spawned", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" } }],
|
|
});
|
|
const parentManager = fakeSessionManager("/workspace", {
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.link", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1", spawnedSessionFile: childFile, cwd: "/workspace-feature" } }],
|
|
});
|
|
const child = fakeRuntime("child-1", { sessionFile: childFile, sessionManager: childManager });
|
|
const parent = fakeRuntime("parent-1", { sessionFile: parentFile, sessionManager: parentManager });
|
|
const runtimes = [child.runtime, parent.runtime];
|
|
let index = 0;
|
|
const open = vi.fn((path: string) => path === parentFile ? parentManager : childManager);
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: () => {
|
|
const runtime = runtimes[index] ?? parent.runtime;
|
|
index += 1;
|
|
return Promise.resolve(runtime);
|
|
},
|
|
sessionManager: {
|
|
create: () => childManager,
|
|
list: () => Promise.resolve([{ ...sessionRecord("child-1", "/workspace-feature"), path: childFile, parentSessionPath: parentFile }]),
|
|
listAll: () => Promise.resolve([]),
|
|
open,
|
|
},
|
|
archiveStore: {
|
|
...emptyArchiveStore(),
|
|
get: (sessionId) => Promise.resolve(sessionId === "child-1" ? { sessionId: "child-1", cwd: "/workspace-feature", archivedAt: "2026-01-01T00:00:00.000Z", parentSessionPath: parentFile } : undefined),
|
|
},
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("child-1", "/workspace-feature"));
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(0);
|
|
expect(open).not.toHaveBeenCalledWith(parentFile);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("does not relink a child marker when the child header points at a different parent id", async () => {
|
|
const tempDir = await mkdtemp(join(tmpdir(), "pi-web-subsession-wrong-parent-"));
|
|
const mismatchedParentFile = join(tempDir, "other-parent.jsonl");
|
|
const actualParentFile = join(tempDir, "parent.jsonl");
|
|
const childFile = join(tempDir, "child.jsonl");
|
|
await writeFile(mismatchedParentFile, `${JSON.stringify({ type: "session", version: 3, id: "other-parent", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace" })}\n`, "utf8");
|
|
await writeFile(childFile, `${JSON.stringify({ type: "session", version: 3, id: "child-1", timestamp: "2026-01-01T00:00:00.000Z", cwd: "/workspace-feature", parentSession: mismatchedParentFile })}\n`, "utf8");
|
|
|
|
try {
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getHeader: () => ({ parentSession: mismatchedParentFile }),
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.spawned", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" } }],
|
|
});
|
|
const parent = fakeRuntime("parent-1", { sessionFile: actualParentFile, sessionManager: fakeSessionManager("/workspace") });
|
|
const child = fakeRuntime("child-1", { sessionFile: childFile, sessionManager: childManager });
|
|
const runtimes = [child.runtime, parent.runtime];
|
|
let index = 0;
|
|
const open = vi.fn((path: string) => path === actualParentFile ? parent.session.sessionManager : childManager);
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: () => {
|
|
const runtime = runtimes[index] ?? parent.runtime;
|
|
index += 1;
|
|
return Promise.resolve(runtime);
|
|
},
|
|
sessionManager: {
|
|
create: () => childManager,
|
|
list: () => Promise.resolve([{ ...sessionRecord("child-1", "/workspace-feature"), path: childFile, parentSessionPath: mismatchedParentFile }]),
|
|
listAll: () => Promise.resolve([{ ...sessionRecord("parent-1", "/workspace"), path: actualParentFile }]),
|
|
open,
|
|
},
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("child-1", "/workspace-feature"));
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(0);
|
|
expect(open).not.toHaveBeenCalledWith(actualParentFile);
|
|
await service.dispose();
|
|
} finally {
|
|
await rm(tempDir, { recursive: true, force: true });
|
|
}
|
|
});
|
|
|
|
it("does not relink copied child markers when the opened child has a different id", async () => {
|
|
const parentFile = "/sessions/parent-1.jsonl";
|
|
const childFile = "/sessions/child-fork-1.jsonl";
|
|
const childManager = fakeSessionManager("/workspace-feature", {
|
|
getHeader: () => ({ parentSession: parentFile }),
|
|
getEntries: () => [{ type: "custom", customType: "pi-web.subsession.spawned", data: { version: 1, spawnedBySessionId: "parent-1", spawnedSessionId: "child-1" } }],
|
|
});
|
|
const child = fakeRuntime("child-fork-1", { sessionFile: childFile, sessionManager: childManager });
|
|
const open = vi.fn(() => childManager);
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(child.runtime),
|
|
sessionManager: {
|
|
create: () => childManager,
|
|
list: () => Promise.resolve([{ ...sessionRecord("child-fork-1", "/workspace-feature"), path: childFile, parentSessionPath: parentFile }]),
|
|
listAll: () => Promise.resolve([]),
|
|
open,
|
|
},
|
|
archiveStore: emptyArchiveStore(),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
|
|
await service.status(sessionRef("child-fork-1", "/workspace-feature"));
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" });
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(open).not.toHaveBeenCalledWith(parentFile);
|
|
await expect(service.listSubsessions("parent-1")).resolves.toEqual([]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("notifies the parent once when the tracked child stops working", async () => {
|
|
const { parent, child, service } = subsessionService({ allowed: true, cwd: "/workspace-feature" });
|
|
await service.start("/workspace");
|
|
await service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "parent-1", parentSessionFile: "/tmp/parent-1.jsonl", prompt: "go", cwd: "/workspace-feature" });
|
|
parent.calls.prompt.length = 0; // ignore the spawn prompt to the child; focus on the parent notification
|
|
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" }); // arm the notification
|
|
child.session.isStreaming = false;
|
|
child.emit({ type: "agent_end" }); // fire once
|
|
child.emit({ type: "turn_end" }); // must not re-notify
|
|
await new Promise((resolve) => setTimeout(resolve, 20)); // the parent notification is delivered via the async custom-message path
|
|
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(1);
|
|
expect(parent.calls.sendCustomMessage[0]?.message.content).toContain("Subsession child-1 stopped working");
|
|
expect(parent.calls.sendCustomMessage[0]?.message.customType).toBe("subsession.completion");
|
|
expect(parent.calls.sendCustomMessage[0]?.options).toEqual({ triggerTurn: true, deliverAs: "followUp" });
|
|
expect(parent.calls.prompt).toHaveLength(0); // not a user-authored message
|
|
await service.dispose();
|
|
});
|
|
|
|
it("notifies via the heartbeat when the child settles without a further event", async () => {
|
|
const { parent, child, service } = subsessionService({ allowed: true, cwd: "/workspace-feature" }, 10);
|
|
await service.start("/workspace");
|
|
await service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "parent-1", parentSessionFile: "/tmp/parent-1.jsonl", prompt: "go", cwd: "/workspace-feature" });
|
|
parent.calls.prompt.length = 0;
|
|
|
|
// The child works, then settles silently: agent_end arrives while it still
|
|
// reports active work, so the event-driven latch does not fire here.
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.emit({ type: "agent_end" });
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(0);
|
|
|
|
// Once the session settles, the periodic heartbeat re-check notifies.
|
|
child.session.isStreaming = false;
|
|
await new Promise((resolve) => setTimeout(resolve, 40));
|
|
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(1);
|
|
expect(parent.calls.sendCustomMessage[0]?.message.content).toContain("Subsession child-1 stopped working");
|
|
await service.dispose();
|
|
});
|
|
|
|
it("does not notify the parent when a tracked child is archived", async () => {
|
|
const { parent, child, service } = subsessionService({ allowed: true, cwd: "/workspace-feature" });
|
|
await service.start("/workspace");
|
|
await service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "parent-1", parentSessionFile: "/tmp/parent-1.jsonl", prompt: "go", cwd: "/workspace-feature" });
|
|
// Arm the notification, as a real working child would.
|
|
child.session.isStreaming = true;
|
|
child.emit({ type: "agent_start" });
|
|
child.session.isStreaming = false;
|
|
parent.calls.sendCustomMessage.length = 0;
|
|
|
|
await service.archive("child-1");
|
|
await new Promise((resolve) => setTimeout(resolve, 20));
|
|
|
|
expect(parent.calls.sendCustomMessage).toHaveLength(0);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("reports a missing tracked child file as unknown in the subsession list", async () => {
|
|
const { service } = subsessionService({ allowed: true, cwd: "/workspace-feature" });
|
|
await service.start("/workspace");
|
|
await service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "parent-1", parentSessionFile: "/tmp/parent-1.jsonl", prompt: "go", cwd: "/workspace-feature" });
|
|
|
|
await service.archive("child-1");
|
|
|
|
await expect(service.listSubsessions("parent-1")).resolves.toEqual([
|
|
{ sessionId: "child-1", cwd: "/workspace-feature", status: "unknown" },
|
|
]);
|
|
await service.dispose();
|
|
});
|
|
|
|
it("check_subsession and read_subsession refuse sessions that are not the caller's children", async () => {
|
|
const { service } = subsessionService({ allowed: true, cwd: "/workspace-feature" });
|
|
await service.start("/workspace");
|
|
await service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "parent-1", parentSessionFile: "/tmp/parent-1.jsonl", prompt: "go", cwd: "/workspace-feature" });
|
|
|
|
await expect(service.checkSubsession("someone-else", "child-1")).rejects.toThrow("not one of your subsessions");
|
|
await expect(service.readSubsession("someone-else", "child-1", {})).rejects.toThrow("not one of your subsessions");
|
|
await service.dispose();
|
|
});
|
|
|
|
it("is disabled when no spawn target resolver is configured", async () => {
|
|
const fake = fakeRuntime("nope");
|
|
const service = new PiSessionService(new CapturingSessionEventHub(), {
|
|
createAgentRuntime: runtimeCreator(fake.runtime),
|
|
sessionManager: sessionGateway([]),
|
|
heartbeatIntervalMs: 60_000,
|
|
});
|
|
await expect(service.spawnSubsession({ spawningCwd: "/workspace", parentSessionId: "p", parentSessionFile: undefined, prompt: "go", cwd: undefined }))
|
|
.rejects.toThrow("Spawning sessions is disabled");
|
|
await service.dispose();
|
|
});
|
|
});
|
|
});
|