d062c782ca
When parentAgent is undefined, omit the agent field entirely from session.prompt body instead of passing undefined. This prevents the OpenCode SDK from falling back to defaultAgent(), which would change the parent session's agent context. Changes: - manager.ts: Build prompt body conditionally, only include agent/model when defined - background-task/tools.ts: Use ctx.agent as primary source for parentAgent (consistent with sisyphus-task) - registerExternalTask: Add parentAgent parameter support - Added tests for agent context preservation scenarios
769 lines
21 KiB
TypeScript
769 lines
21 KiB
TypeScript
import { describe, test, expect, beforeEach } from "bun:test"
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import type { BackgroundTask, ResumeInput } from "./types"
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const TASK_TTL_MS = 30 * 60 * 1000
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class MockBackgroundManager {
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private tasks: Map<string, BackgroundTask> = new Map()
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private notifications: Map<string, BackgroundTask[]> = new Map()
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public resumeCalls: Array<{ sessionId: string; prompt: string }> = []
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addTask(task: BackgroundTask): void {
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this.tasks.set(task.id, task)
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}
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getTask(id: string): BackgroundTask | undefined {
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return this.tasks.get(id)
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}
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findBySession(sessionID: string): BackgroundTask | undefined {
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for (const task of this.tasks.values()) {
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if (task.sessionID === sessionID) {
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return task
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}
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}
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return undefined
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}
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getTasksByParentSession(sessionID: string): BackgroundTask[] {
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const result: BackgroundTask[] = []
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for (const task of this.tasks.values()) {
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if (task.parentSessionID === sessionID) {
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result.push(task)
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}
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}
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return result
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}
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getAllDescendantTasks(sessionID: string): BackgroundTask[] {
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const result: BackgroundTask[] = []
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const directChildren = this.getTasksByParentSession(sessionID)
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for (const child of directChildren) {
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result.push(child)
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const descendants = this.getAllDescendantTasks(child.sessionID)
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result.push(...descendants)
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}
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return result
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}
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markForNotification(task: BackgroundTask): void {
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const queue = this.notifications.get(task.parentSessionID) ?? []
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queue.push(task)
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this.notifications.set(task.parentSessionID, queue)
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}
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getPendingNotifications(sessionID: string): BackgroundTask[] {
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return this.notifications.get(sessionID) ?? []
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}
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private clearNotificationsForTask(taskId: string): void {
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for (const [sessionID, tasks] of this.notifications.entries()) {
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const filtered = tasks.filter((t) => t.id !== taskId)
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if (filtered.length === 0) {
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this.notifications.delete(sessionID)
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} else {
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this.notifications.set(sessionID, filtered)
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}
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}
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}
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pruneStaleTasksAndNotifications(): { prunedTasks: string[]; prunedNotifications: number } {
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const now = Date.now()
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const prunedTasks: string[] = []
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let prunedNotifications = 0
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for (const [taskId, task] of this.tasks.entries()) {
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const age = now - task.startedAt.getTime()
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if (age > TASK_TTL_MS) {
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prunedTasks.push(taskId)
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this.clearNotificationsForTask(taskId)
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this.tasks.delete(taskId)
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}
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}
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for (const [sessionID, notifications] of this.notifications.entries()) {
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if (notifications.length === 0) {
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this.notifications.delete(sessionID)
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continue
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}
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const validNotifications = notifications.filter((task) => {
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const age = now - task.startedAt.getTime()
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return age <= TASK_TTL_MS
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})
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const removed = notifications.length - validNotifications.length
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prunedNotifications += removed
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if (validNotifications.length === 0) {
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this.notifications.delete(sessionID)
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} else if (validNotifications.length !== notifications.length) {
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this.notifications.set(sessionID, validNotifications)
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}
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}
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return { prunedTasks, prunedNotifications }
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}
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getTaskCount(): number {
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return this.tasks.size
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}
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getNotificationCount(): number {
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let count = 0
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for (const notifications of this.notifications.values()) {
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count += notifications.length
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}
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return count
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}
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resume(input: ResumeInput): BackgroundTask {
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const existingTask = this.findBySession(input.sessionId)
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if (!existingTask) {
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throw new Error(`Task not found for session: ${input.sessionId}`)
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}
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this.resumeCalls.push({ sessionId: input.sessionId, prompt: input.prompt })
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existingTask.status = "running"
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existingTask.completedAt = undefined
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existingTask.error = undefined
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existingTask.parentSessionID = input.parentSessionID
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existingTask.parentMessageID = input.parentMessageID
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existingTask.parentModel = input.parentModel
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existingTask.progress = {
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toolCalls: existingTask.progress?.toolCalls ?? 0,
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lastUpdate: new Date(),
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}
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return existingTask
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}
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}
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function createMockTask(overrides: Partial<BackgroundTask> & { id: string; sessionID: string; parentSessionID: string }): BackgroundTask {
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return {
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parentMessageID: "mock-message-id",
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description: "test task",
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prompt: "test prompt",
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agent: "test-agent",
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status: "running",
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startedAt: new Date(),
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...overrides,
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}
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}
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describe("BackgroundManager.getAllDescendantTasks", () => {
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let manager: MockBackgroundManager
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beforeEach(() => {
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// #given
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manager = new MockBackgroundManager()
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})
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test("should return empty array when no tasks exist", () => {
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// #given - empty manager
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// #when
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const result = manager.getAllDescendantTasks("session-a")
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// #then
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expect(result).toEqual([])
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})
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test("should return direct children only when no nested tasks", () => {
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// #given
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const taskB = createMockTask({
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id: "task-b",
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sessionID: "session-b",
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parentSessionID: "session-a",
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})
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manager.addTask(taskB)
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// #when
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const result = manager.getAllDescendantTasks("session-a")
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// #then
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expect(result).toHaveLength(1)
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expect(result[0].id).toBe("task-b")
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})
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test("should return all nested descendants (2 levels deep)", () => {
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// #given
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// Session A -> Task B -> Task C
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const taskB = createMockTask({
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id: "task-b",
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sessionID: "session-b",
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parentSessionID: "session-a",
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})
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const taskC = createMockTask({
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id: "task-c",
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sessionID: "session-c",
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parentSessionID: "session-b",
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})
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manager.addTask(taskB)
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manager.addTask(taskC)
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// #when
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const result = manager.getAllDescendantTasks("session-a")
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// #then
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expect(result).toHaveLength(2)
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expect(result.map(t => t.id)).toContain("task-b")
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expect(result.map(t => t.id)).toContain("task-c")
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})
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test("should return all nested descendants (3 levels deep)", () => {
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// #given
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// Session A -> Task B -> Task C -> Task D
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const taskB = createMockTask({
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id: "task-b",
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sessionID: "session-b",
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parentSessionID: "session-a",
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})
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const taskC = createMockTask({
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id: "task-c",
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sessionID: "session-c",
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parentSessionID: "session-b",
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})
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const taskD = createMockTask({
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id: "task-d",
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sessionID: "session-d",
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parentSessionID: "session-c",
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})
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manager.addTask(taskB)
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manager.addTask(taskC)
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manager.addTask(taskD)
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// #when
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const result = manager.getAllDescendantTasks("session-a")
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// #then
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expect(result).toHaveLength(3)
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expect(result.map(t => t.id)).toContain("task-b")
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expect(result.map(t => t.id)).toContain("task-c")
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expect(result.map(t => t.id)).toContain("task-d")
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})
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test("should handle multiple branches (tree structure)", () => {
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// #given
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// Session A -> Task B1 -> Task C1
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// -> Task B2 -> Task C2
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const taskB1 = createMockTask({
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id: "task-b1",
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sessionID: "session-b1",
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parentSessionID: "session-a",
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})
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const taskB2 = createMockTask({
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id: "task-b2",
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sessionID: "session-b2",
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parentSessionID: "session-a",
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})
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const taskC1 = createMockTask({
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id: "task-c1",
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sessionID: "session-c1",
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parentSessionID: "session-b1",
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})
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const taskC2 = createMockTask({
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id: "task-c2",
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sessionID: "session-c2",
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parentSessionID: "session-b2",
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})
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manager.addTask(taskB1)
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manager.addTask(taskB2)
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manager.addTask(taskC1)
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manager.addTask(taskC2)
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// #when
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const result = manager.getAllDescendantTasks("session-a")
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// #then
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expect(result).toHaveLength(4)
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expect(result.map(t => t.id)).toContain("task-b1")
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expect(result.map(t => t.id)).toContain("task-b2")
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expect(result.map(t => t.id)).toContain("task-c1")
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expect(result.map(t => t.id)).toContain("task-c2")
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})
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test("should not include tasks from unrelated sessions", () => {
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// #given
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// Session A -> Task B
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// Session X -> Task Y (unrelated)
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const taskB = createMockTask({
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id: "task-b",
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sessionID: "session-b",
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parentSessionID: "session-a",
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})
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const taskY = createMockTask({
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id: "task-y",
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sessionID: "session-y",
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parentSessionID: "session-x",
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})
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manager.addTask(taskB)
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manager.addTask(taskY)
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// #when
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const result = manager.getAllDescendantTasks("session-a")
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// #then
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expect(result).toHaveLength(1)
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expect(result[0].id).toBe("task-b")
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expect(result.map(t => t.id)).not.toContain("task-y")
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})
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test("getTasksByParentSession should only return direct children (not recursive)", () => {
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// #given
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// Session A -> Task B -> Task C
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const taskB = createMockTask({
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id: "task-b",
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sessionID: "session-b",
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parentSessionID: "session-a",
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})
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const taskC = createMockTask({
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id: "task-c",
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sessionID: "session-c",
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parentSessionID: "session-b",
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})
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manager.addTask(taskB)
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manager.addTask(taskC)
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// #when
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const result = manager.getTasksByParentSession("session-a")
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// #then
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expect(result).toHaveLength(1)
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expect(result[0].id).toBe("task-b")
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})
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})
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describe("BackgroundManager.notifyParentSession - release ordering", () => {
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test("should unblock queued task even when prompt hangs", async () => {
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// #given - concurrency limit 1, task1 running, task2 waiting
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const { ConcurrencyManager } = await import("./concurrency")
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const concurrencyManager = new ConcurrencyManager({ defaultConcurrency: 1 })
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await concurrencyManager.acquire("explore")
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let task2Resolved = false
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const task2Promise = concurrencyManager.acquire("explore").then(() => {
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task2Resolved = true
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})
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await Promise.resolve()
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expect(task2Resolved).toBe(false)
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// #when - simulate notifyParentSession: release BEFORE prompt (fixed behavior)
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let promptStarted = false
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const simulateNotifyParentSession = async () => {
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concurrencyManager.release("explore")
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promptStarted = true
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await new Promise(() => {})
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}
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simulateNotifyParentSession()
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await Promise.resolve()
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await Promise.resolve()
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// #then - task2 should be unblocked even though prompt never completes
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expect(promptStarted).toBe(true)
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await task2Promise
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expect(task2Resolved).toBe(true)
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})
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test("should keep queue blocked if release is after prompt (demonstrates the bug)", async () => {
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// #given - same setup
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const { ConcurrencyManager } = await import("./concurrency")
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const concurrencyManager = new ConcurrencyManager({ defaultConcurrency: 1 })
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await concurrencyManager.acquire("explore")
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let task2Resolved = false
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concurrencyManager.acquire("explore").then(() => {
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task2Resolved = true
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})
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await Promise.resolve()
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expect(task2Resolved).toBe(false)
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// #when - simulate BUGGY behavior: release AFTER prompt (in finally)
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const simulateBuggyNotifyParentSession = async () => {
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try {
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await new Promise((_, reject) => setTimeout(() => reject(new Error("timeout")), 50))
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} finally {
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concurrencyManager.release("explore")
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}
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}
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await simulateBuggyNotifyParentSession().catch(() => {})
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// #then - task2 resolves only after prompt completes (blocked during hang)
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await Promise.resolve()
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expect(task2Resolved).toBe(true)
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})
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})
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describe("BackgroundManager.pruneStaleTasksAndNotifications", () => {
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let manager: MockBackgroundManager
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beforeEach(() => {
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// #given
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manager = new MockBackgroundManager()
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})
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test("should not prune fresh tasks", () => {
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// #given
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const task = createMockTask({
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id: "task-fresh",
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sessionID: "session-fresh",
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parentSessionID: "session-parent",
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startedAt: new Date(),
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})
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manager.addTask(task)
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// #when
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const result = manager.pruneStaleTasksAndNotifications()
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// #then
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expect(result.prunedTasks).toHaveLength(0)
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expect(manager.getTaskCount()).toBe(1)
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})
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test("should prune tasks older than 30 minutes", () => {
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// #given
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const staleDate = new Date(Date.now() - 31 * 60 * 1000)
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const task = createMockTask({
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id: "task-stale",
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sessionID: "session-stale",
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parentSessionID: "session-parent",
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startedAt: staleDate,
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})
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manager.addTask(task)
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// #when
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const result = manager.pruneStaleTasksAndNotifications()
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// #then
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expect(result.prunedTasks).toContain("task-stale")
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expect(manager.getTaskCount()).toBe(0)
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})
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test("should prune stale notifications", () => {
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// #given
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const staleDate = new Date(Date.now() - 31 * 60 * 1000)
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const task = createMockTask({
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id: "task-stale",
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sessionID: "session-stale",
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parentSessionID: "session-parent",
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startedAt: staleDate,
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})
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manager.markForNotification(task)
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// #when
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const result = manager.pruneStaleTasksAndNotifications()
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// #then
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expect(result.prunedNotifications).toBe(1)
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expect(manager.getNotificationCount()).toBe(0)
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})
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test("should clean up notifications when task is pruned", () => {
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// #given
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const staleDate = new Date(Date.now() - 31 * 60 * 1000)
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const task = createMockTask({
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id: "task-stale",
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sessionID: "session-stale",
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parentSessionID: "session-parent",
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startedAt: staleDate,
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})
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manager.addTask(task)
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manager.markForNotification(task)
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// #when
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manager.pruneStaleTasksAndNotifications()
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// #then
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expect(manager.getTaskCount()).toBe(0)
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expect(manager.getNotificationCount()).toBe(0)
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})
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test("should keep fresh tasks while pruning stale ones", () => {
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// #given
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const staleDate = new Date(Date.now() - 31 * 60 * 1000)
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const staleTask = createMockTask({
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id: "task-stale",
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sessionID: "session-stale",
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parentSessionID: "session-parent",
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startedAt: staleDate,
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})
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const freshTask = createMockTask({
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id: "task-fresh",
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sessionID: "session-fresh",
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parentSessionID: "session-parent",
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startedAt: new Date(),
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})
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manager.addTask(staleTask)
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manager.addTask(freshTask)
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// #when
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const result = manager.pruneStaleTasksAndNotifications()
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// #then
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expect(result.prunedTasks).toHaveLength(1)
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expect(result.prunedTasks).toContain("task-stale")
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expect(manager.getTaskCount()).toBe(1)
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expect(manager.getTask("task-fresh")).toBeDefined()
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})
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})
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describe("BackgroundManager.resume", () => {
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let manager: MockBackgroundManager
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beforeEach(() => {
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// #given
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manager = new MockBackgroundManager()
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})
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test("should throw error when task not found", () => {
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// #given - empty manager
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// #when / #then
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expect(() => manager.resume({
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sessionId: "non-existent",
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prompt: "continue",
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parentSessionID: "session-new",
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parentMessageID: "msg-new",
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})).toThrow("Task not found for session: non-existent")
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})
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test("should resume existing task and reset state to running", () => {
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// #given
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const completedTask = createMockTask({
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id: "task-a",
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sessionID: "session-a",
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parentSessionID: "session-parent",
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status: "completed",
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})
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completedTask.completedAt = new Date()
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completedTask.error = "previous error"
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manager.addTask(completedTask)
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// #when
|
|
const result = manager.resume({
|
|
sessionId: "session-a",
|
|
prompt: "continue the work",
|
|
parentSessionID: "session-new-parent",
|
|
parentMessageID: "msg-new",
|
|
})
|
|
|
|
// #then
|
|
expect(result.status).toBe("running")
|
|
expect(result.completedAt).toBeUndefined()
|
|
expect(result.error).toBeUndefined()
|
|
expect(result.parentSessionID).toBe("session-new-parent")
|
|
expect(result.parentMessageID).toBe("msg-new")
|
|
})
|
|
|
|
test("should preserve task identity while updating parent context", () => {
|
|
// #given
|
|
const existingTask = createMockTask({
|
|
id: "task-a",
|
|
sessionID: "session-a",
|
|
parentSessionID: "old-parent",
|
|
description: "original description",
|
|
agent: "explore",
|
|
})
|
|
manager.addTask(existingTask)
|
|
|
|
// #when
|
|
const result = manager.resume({
|
|
sessionId: "session-a",
|
|
prompt: "new prompt",
|
|
parentSessionID: "new-parent",
|
|
parentMessageID: "new-msg",
|
|
parentModel: { providerID: "anthropic", modelID: "claude-opus" },
|
|
})
|
|
|
|
// #then
|
|
expect(result.id).toBe("task-a")
|
|
expect(result.sessionID).toBe("session-a")
|
|
expect(result.description).toBe("original description")
|
|
expect(result.agent).toBe("explore")
|
|
expect(result.parentModel).toEqual({ providerID: "anthropic", modelID: "claude-opus" })
|
|
})
|
|
|
|
test("should track resume calls with prompt", () => {
|
|
// #given
|
|
const task = createMockTask({
|
|
id: "task-a",
|
|
sessionID: "session-a",
|
|
parentSessionID: "session-parent",
|
|
})
|
|
manager.addTask(task)
|
|
|
|
// #when
|
|
manager.resume({
|
|
sessionId: "session-a",
|
|
prompt: "continue with additional context",
|
|
parentSessionID: "session-new",
|
|
parentMessageID: "msg-new",
|
|
})
|
|
|
|
// #then
|
|
expect(manager.resumeCalls).toHaveLength(1)
|
|
expect(manager.resumeCalls[0]).toEqual({
|
|
sessionId: "session-a",
|
|
prompt: "continue with additional context",
|
|
})
|
|
})
|
|
|
|
test("should preserve existing tool call count in progress", () => {
|
|
// #given
|
|
const taskWithProgress = createMockTask({
|
|
id: "task-a",
|
|
sessionID: "session-a",
|
|
parentSessionID: "session-parent",
|
|
})
|
|
taskWithProgress.progress = {
|
|
toolCalls: 42,
|
|
lastTool: "read",
|
|
lastUpdate: new Date(),
|
|
}
|
|
manager.addTask(taskWithProgress)
|
|
|
|
// #when
|
|
const result = manager.resume({
|
|
sessionId: "session-a",
|
|
prompt: "continue",
|
|
parentSessionID: "session-new",
|
|
parentMessageID: "msg-new",
|
|
})
|
|
|
|
// #then
|
|
expect(result.progress?.toolCalls).toBe(42)
|
|
})
|
|
})
|
|
|
|
describe("LaunchInput.skillContent", () => {
|
|
test("skillContent should be optional in LaunchInput type", () => {
|
|
// #given
|
|
const input: import("./types").LaunchInput = {
|
|
description: "test",
|
|
prompt: "test prompt",
|
|
agent: "explore",
|
|
parentSessionID: "parent-session",
|
|
parentMessageID: "parent-msg",
|
|
}
|
|
|
|
// #when / #then - should compile without skillContent
|
|
expect(input.skillContent).toBeUndefined()
|
|
})
|
|
|
|
test("skillContent can be provided in LaunchInput", () => {
|
|
// #given
|
|
const input: import("./types").LaunchInput = {
|
|
description: "test",
|
|
prompt: "test prompt",
|
|
agent: "explore",
|
|
parentSessionID: "parent-session",
|
|
parentMessageID: "parent-msg",
|
|
skillContent: "You are a playwright expert",
|
|
}
|
|
|
|
// #when / #then
|
|
expect(input.skillContent).toBe("You are a playwright expert")
|
|
})
|
|
})
|
|
|
|
describe("BackgroundManager.notifyParentSession - agent context preservation", () => {
|
|
test("should not pass agent field when parentAgent is undefined", async () => {
|
|
// #given
|
|
const task: BackgroundTask = {
|
|
id: "task-no-agent",
|
|
sessionID: "session-child",
|
|
parentSessionID: "session-parent",
|
|
parentMessageID: "msg-parent",
|
|
description: "task without agent context",
|
|
prompt: "test",
|
|
agent: "explore",
|
|
status: "completed",
|
|
startedAt: new Date(),
|
|
completedAt: new Date(),
|
|
parentAgent: undefined,
|
|
parentModel: { providerID: "anthropic", modelID: "claude-opus" },
|
|
}
|
|
|
|
// #when
|
|
const promptBody = buildNotificationPromptBody(task)
|
|
|
|
// #then
|
|
expect("agent" in promptBody).toBe(false)
|
|
expect(promptBody.model).toEqual({ providerID: "anthropic", modelID: "claude-opus" })
|
|
})
|
|
|
|
test("should include agent field when parentAgent is defined", async () => {
|
|
// #given
|
|
const task: BackgroundTask = {
|
|
id: "task-with-agent",
|
|
sessionID: "session-child",
|
|
parentSessionID: "session-parent",
|
|
parentMessageID: "msg-parent",
|
|
description: "task with agent context",
|
|
prompt: "test",
|
|
agent: "explore",
|
|
status: "completed",
|
|
startedAt: new Date(),
|
|
completedAt: new Date(),
|
|
parentAgent: "Sisyphus",
|
|
parentModel: { providerID: "anthropic", modelID: "claude-opus" },
|
|
}
|
|
|
|
// #when
|
|
const promptBody = buildNotificationPromptBody(task)
|
|
|
|
// #then
|
|
expect(promptBody.agent).toBe("Sisyphus")
|
|
})
|
|
|
|
test("should not pass model field when parentModel is undefined", async () => {
|
|
// #given
|
|
const task: BackgroundTask = {
|
|
id: "task-no-model",
|
|
sessionID: "session-child",
|
|
parentSessionID: "session-parent",
|
|
parentMessageID: "msg-parent",
|
|
description: "task without model context",
|
|
prompt: "test",
|
|
agent: "explore",
|
|
status: "completed",
|
|
startedAt: new Date(),
|
|
completedAt: new Date(),
|
|
parentAgent: "Sisyphus",
|
|
parentModel: undefined,
|
|
}
|
|
|
|
// #when
|
|
const promptBody = buildNotificationPromptBody(task)
|
|
|
|
// #then
|
|
expect("model" in promptBody).toBe(false)
|
|
expect(promptBody.agent).toBe("Sisyphus")
|
|
})
|
|
})
|
|
|
|
function buildNotificationPromptBody(task: BackgroundTask): Record<string, unknown> {
|
|
const body: Record<string, unknown> = {
|
|
parts: [{ type: "text", text: `[BACKGROUND TASK COMPLETED] Task "${task.description}" finished.` }],
|
|
}
|
|
|
|
if (task.parentAgent !== undefined) {
|
|
body.agent = task.parentAgent
|
|
}
|
|
|
|
if (task.parentModel?.providerID && task.parentModel?.modelID) {
|
|
body.model = { providerID: task.parentModel.providerID, modelID: task.parentModel.modelID }
|
|
}
|
|
|
|
return body
|
|
}
|