opencode/packages/app/e2e/session/session-child-navigation.spec.ts

import { seedSessionTask, withSession } from "../actions"
import { test, expect } from "../fixtures"
import { inputMatch } from "../prompt/mock"
test("task tool child-session link does not trigger stale show errors", async ({ page, llm, withMockProject }) => {
  test.setTimeout(120_000)

  const errs: string[] = []
  const onError = (err: Error) => {
    errs.push(err.message)
  }
  page.on("pageerror", onError)

  try {
    await withMockProject(async ({ gotoSession, trackSession, sdk }) => {
      await withSession(sdk, `e2e child nav ${Date.now()}`, async (session) => {
        const taskInput = {
          description: "Open child session",
          prompt: "Search the repository for AssistantParts and then reply with exactly CHILD_OK.",
          subagent_type: "general",
        }
        await llm.toolMatch(inputMatch(taskInput), "task", taskInput)
        const child = await seedSessionTask(sdk, {
          sessionID: session.id,
          description: taskInput.description,
          prompt: taskInput.prompt,
        })
        trackSession(child.sessionID)

        await gotoSession(session.id)

        const card = page
          .locator('[data-component="task-tool-card"]')
          .filter({ hasText: /open child session/i })
          .first()
        await expect(card).toBeVisible({ timeout: 30_000 })
        await card.click()

        await expect(page).toHaveURL(new RegExp(`/session/${child.sessionID}(?:[/?#]|$)`), { timeout: 30_000 })
        await expect(page.getByText("Subagent sessions cannot be prompted.")).toBeVisible({ timeout: 30_000 })
        await expect(page.getByRole("button", { name: "Back to main session." })).toBeVisible({ timeout: 30_000 })
        await expect.poll(() => errs, { timeout: 5_000 }).toEqual([])
      })
    })
  } finally {
    page.off("pageerror", onError)
  }
})