feat: slash system / input service / agent scope

This commit is contained in:
imccyu
2026-07-27 03:17:52 +08:00
parent f3a4833dbf
commit a27be43ac1
210 changed files with 15969 additions and 2213 deletions

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@@ -0,0 +1,192 @@
// @vitest-environment jsdom
// Assembled keyless snapshot of the slash/input/session convergence under the
// agent-parity model: the New Session view state locks the composer until a
// Workspace is picked (connectWorkspace materializes the full Session+Agent),
// the '/' menu serves the session's wire command catalog (sessions are always
// agent-backed — no draft/materialized split), a leadingInput command claims,
// submits over the wire, and notices its result, and the SAME composer
// textarea then carries the first plain send, whose ACCEPTANCE (not attempt)
// flips blank and surfaces the session in lists. This is the user-visible
// acceptance anchor — package mocks do not substitute for the assembled
// application transcript.
import { readFileSync } from 'node:fs'
import { join } from 'node:path'
import { act, cleanup, fireEvent, screen, waitFor, within } from '@testing-library/react'
import { afterEach, beforeEach, expect, it, vi } from 'vitest'
import type { WebBootEntry } from '@deepseek-ai/dsh-client-modules/client'
import { AppWebEntry } from '@deepseek-ai/dsh-client-web'
const PLUGINS: readonly (WebBootEntry & { dir: string })[] = [
{ id: '@deepseek-ai/dsh-client-connection', dir: 'connection', url: '/plugins/connection.js', rev: 'fx', inject: [], immediately: true },
{ id: '@deepseek-ai/dsh-client-runtime', dir: 'runtime', url: '/plugins/runtime.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-connection'], immediately: true },
{ id: '@deepseek-ai/dsh-client-ui-theme', dir: 'ui-theme', url: '/plugins/ui-theme.js', rev: 'fx', inject: [], immediately: true },
{ id: '@deepseek-ai/dsh-client-i18n', dir: 'i18n', url: '/plugins/i18n.js', rev: 'fx', inject: [], immediately: true },
{ id: '@deepseek-ai/dsh-client-locale', dir: 'locale', url: '/plugins/locale.js', rev: 'fx', inject: [], immediately: true },
{ id: '@deepseek-ai/dsh-client-ui-layout', dir: 'ui-layout', url: '/plugins/ui-layout.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-runtime'] },
{ id: '@deepseek-ai/dsh-client-ui-sidebar', dir: 'ui-sidebar', url: '/plugins/ui-sidebar.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-ui-layout'] },
{ id: '@deepseek-ai/dsh-client-ui-slash', dir: 'ui-slash', url: '/plugins/ui-slash.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-runtime'] },
{ id: '@deepseek-ai/dsh-client-ui-conversation', dir: 'ui-conversation', url: '/plugins/ui-conversation.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-ui-layout', '@deepseek-ai/dsh-client-ui-slash'] },
{ id: '@deepseek-ai/dsh-client-ui-command', dir: 'ui-command', url: '/plugins/ui-command.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-ui-slash', '@deepseek-ai/dsh-client-ui-conversation'] },
{ id: '@deepseek-ai/dsh-client-ui-skill', dir: 'ui-skill', url: '/plugins/ui-skill.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-ui-slash'] },
{ id: '@deepseek-ai/dsh-client-ui-subagent', dir: 'ui-subagent', url: '/plugins/ui-subagent.js', rev: 'fx', inject: ['@deepseek-ai/dsh-client-ui-slash'] },
{
id: '@deepseek-ai/dsh-client-ui-workspace',
dir: 'ui-workspace',
url: '/plugins/ui-workspace.js',
rev: 'fx',
inject: [
'@deepseek-ai/dsh-client-runtime',
'@deepseek-ai/dsh-client-ui-conversation',
'@deepseek-ai/dsh-client-ui-sidebar',
],
},
]
const bundles = new Map(PLUGINS.map(plugin => [
plugin.url,
readFileSync(join(process.cwd(), 'packages/client', plugin.dir, 'lib/client.js'), 'utf8'),
]))
interface FixtureWindow extends Window {
__DSH_BOOT__?: { rev: string; entries: WebBootEntry[] }
__ModuleLoader__?: unknown
}
class ResizeObserverStub {
observe(): void {}
disconnect(): void {}
unobserve(): void {}
}
const win = window as FixtureWindow
let unmount: (() => void) | undefined
beforeEach(() => {
localStorage.clear()
document.title = 'DeepSeek Harness'
vi.stubGlobal('ResizeObserver', ResizeObserverStub)
vi.stubGlobal('requestAnimationFrame', (callback: FrameRequestCallback) =>
setTimeout(() => { callback(0) }, 0) as unknown as number)
vi.stubGlobal('cancelAnimationFrame', (id: number) => { clearTimeout(id) })
})
afterEach(() => {
act(() => { unmount?.() })
unmount = undefined
cleanup()
delete win.__DSH_BOOT__
delete win.__ModuleLoader__
delete (globalThis as Record<string, unknown>).__fxTiming
document.body.innerHTML = ''
document.head.querySelectorAll('style[data-plugin]').forEach((style) => { style.remove() })
document.title = ''
history.replaceState(null, '', '/')
vi.unstubAllGlobals()
})
/** Boot the complete built client graph against one keyless fixture branch. */
function boot(search: string): void {
history.replaceState(null, '', `/${search}`)
const root = document.createElement('div')
root.id = 'root'
document.body.appendChild(root)
win.__DSH_BOOT__ = { rev: 'fx', entries: PLUGINS.map(({ dir: _dir, ...plugin }) => plugin) }
act(() => {
const entry = new AppWebEntry(root, {
fetchBundle: (url) => {
const code = bundles.get(url)
return code === undefined ? Promise.reject(new Error(`missing built bundle ${url}`)) : Promise.resolve(code)
},
executeBundle: (code) => { (0, eval)(code) },
})
void entry.run()
unmount = () => { entry.dispose() }
})
}
/** Collapse decorative whitespace while preserving the text a user sees. */
function visibleText(element: Element): string {
return (element.textContent ?? '').replace(/\s+/g, ' ').trim()
}
/** Type into the machine-driven composer and let the change echo back. */
async function typeComposer(composer: HTMLTextAreaElement, value: string): Promise<void> {
fireEvent.change(composer, { target: { value } })
await waitFor(() => { expect(composer.value).toBe(value) })
}
it('locked view state, connectWorkspace unlock, /echo claim chain, and blank-on-acceptance ride one resident composer', async () => {
boot('?fixture=empty')
// View state: no session entity — the composer renders locked; only the
// workspace picker is live.
const locked = await screen.findByPlaceholderText(
'Choose a workspace to start', {}, { timeout: 10_000 },
) as HTMLTextAreaElement
expect(locked.disabled).toBe(true)
// Pick (create) a Workspace: connectWorkspace materializes the full
// Session+Agent and the provider swaps in the live blank-session hero.
fireEvent.click(screen.getAllByRole('button', { name: 'Choose workspace' })
.find(el => el.getAttribute('aria-haspopup') === 'menu')!)
fireEvent.click(await screen.findByRole('menuitem', { name: 'Create workspace' }))
fireEvent.click(await screen.findByRole('menuitem', { name: 'Create a new workspace' }))
const dialog = await screen.findByRole('dialog', { name: 'Create a new workspace' })
fireEvent.change(within(dialog).getByRole('textbox', { name: 'New workspace name' }), {
target: { value: 'nova' },
})
fireEvent.click(within(dialog).getByRole('button', { name: 'Create workspace' }))
const composer = await screen.findByPlaceholderText(
'Describe what you want to build', {}, { timeout: 10_000 },
) as HTMLTextAreaElement
expect(composer.disabled).toBe(false)
// '/' opens the menu with the session's wire command catalog (the session
// is agent-backed from birth — the catalog is the single-address list).
await typeComposer(composer, '/')
const menu = await screen.findByRole('listbox', { name: 'Trigger suggestions' })
await waitFor(() => { expect(visibleText(menu)).toContain('echo') })
const menuText = visibleText(menu)
// Pick /echo (leadingInput): the claim token lands in the same textarea.
fireEvent.mouseDown(screen.getByRole('option', { name: /echo/ }))
await waitFor(() => { expect(composer.value).toBe('/echo ') })
// Type args and submit: the claim executes over the wire and notices its
// result; the token is consumed and the draft returns to plain text.
await typeComposer(composer, '/echo hello parser')
fireEvent.keyDown(composer, { key: 'Enter' })
await screen.findByText('hello parser', {}, { timeout: 10_000 })
await waitFor(() => { expect(composer.value).toBe('') })
// Slash execution does not flip blank: the selected row remains New Session.
const tree = screen.getByRole('tree', { name: 'Sessions' })
expect(within(tree).getByText('1 session')).toBeDefined()
expect(within(tree).getByText('New Session')).toBeDefined()
// First plain send through the SAME textarea: acceptance logs the user
// message and converts the existing sidebar row out of blank.
const before = composer
await typeComposer(composer, 'build me a parser')
fireEvent.keyDown(composer, { key: 'Enter' })
await waitFor(() => {
expect(screen.queryByText("Let's start building")).toBeNull()
}, { timeout: 10_000 })
await waitFor(() => { expect(within(tree).getByText('1 session')).toBeDefined() }, { timeout: 10_000 })
const after = document.querySelector('textarea')
expect({
menuHadEcho: menuText.includes('echo'),
menuHadCompact: menuText.includes('compact'),
composerSurvivedConversion: after === before,
sessionListed: visibleText(within(tree).getByText('1 session').closest('[role="treeitem"]')!),
}).toMatchInlineSnapshot(`
{
"composerSurvivedConversion": true,
"menuHadCompact": true,
"menuHadEcho": true,
"sessionListed": "nova1 session",
}
`)
})

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@@ -1,4 +1,11 @@
// @vitest-environment jsdom
// Assembled keyless snapshots of the New Session flow under the agent-parity
// model: no session exists before a Workspace is chosen (the composer is
// locked in the pure view state), picking one materializes the full
// Session+Agent (reuse-or-create of the workspace's blank session), the
// first accepted prompt flips blank and surfaces the session in lists, and
// failures (attach rejection, prompt rejection) are ordinary error strips
// with no client-side transaction state.
import { readFileSync } from 'node:fs'
import { join } from 'node:path'
import { act, cleanup, fireEvent, screen, waitFor, within } from '@testing-library/react'
@@ -93,25 +100,12 @@ function boot(search: string): void {
})
}
/** Recreate the built client graph while preserving browser-persistent state. */
function refresh(search: string): void {
act(() => { unmount?.() })
unmount = undefined
cleanup()
delete win.__DSH_BOOT__
delete win.__ModuleLoader__
delete (globalThis as Record<string, unknown>).__fxTiming
document.body.innerHTML = ''
document.head.querySelectorAll('style[data-plugin]').forEach((style) => { style.remove() })
boot(search)
}
/** Collapse decorative whitespace while preserving the text a user sees. */
function visibleText(element: Element): string {
return (element.textContent ?? '').replace(/\s+/g, ' ').trim()
}
/** Identify the interactive Workspace chip by its menu contract. */
/** Identify the interactive Workspace chip (view state or blank-session hero) by its menu contract. */
function workspaceChip(): HTMLElement {
const chip = screen.getAllByRole('button', { name: 'Choose workspace' })
.find(element => element.getAttribute('aria-haspopup') === 'menu')
@@ -119,210 +113,216 @@ function workspaceChip(): HTMLElement {
return chip
}
/** Edit the runtime-owned controlled input and assert the same-tick echo:
* a deferred echo makes React roll the textarea back mid-IME-composition,
* committing partial keystrokes (e.g. Pinyin "nihao" leaking as "nnini h…"). */
/** The locked view-state composer (no session yet). */
async function findLockedComposer(): Promise<HTMLTextAreaElement> {
return await screen.findByPlaceholderText(
'Choose a workspace to start', {}, { timeout: 10_000 },
) as HTMLTextAreaElement
}
/** The live blank-session hero composer (session materialized). */
async function findHeroComposer(): Promise<HTMLTextAreaElement> {
return await screen.findByPlaceholderText(
'Describe what you want to build', {}, { timeout: 10_000 },
) as HTMLTextAreaElement
}
/** Edit the machine-owned controlled input and assert the same-tick echo. */
function setComposerText(composer: HTMLElement, value: string): void {
fireEvent.change(composer, { target: { value } })
expect((composer as HTMLTextAreaElement).value).toBe(value)
}
it('starts a writable page-local draft without inventing a sidebar Workspace', async () => {
/** Drive the picker's create flow: chip → Create workspace → name dialog. */
async function createWorkspaceViaPicker(name: string): Promise<void> {
fireEvent.click(workspaceChip())
fireEvent.click(await screen.findByRole('menuitem', { name: 'Create workspace' }))
fireEvent.click(await screen.findByRole('menuitem', { name: 'Create a new workspace' }))
const dialog = await screen.findByRole('dialog', { name: 'Create a new workspace' })
fireEvent.change(within(dialog).getByRole('textbox', { name: 'New workspace name' }), {
target: { value: name },
})
fireEvent.click(within(dialog).getByRole('button', { name: 'Create workspace' }))
}
/** Pick an existing Workspace row from the chip menu. */
async function pickWorkspace(title: string): Promise<void> {
fireEvent.click(workspaceChip())
fireEvent.click(await screen.findByRole('menuitem', { name: title }))
}
it('locks the composer in the New Session view state until a Workspace is chosen', async () => {
boot('?fixture=empty')
const composer = await screen.findByPlaceholderText('Describe what you want to build', {}, { timeout: 10_000 })
const composer = await findLockedComposer()
const tree = screen.getByRole('tree', { name: 'Sessions' })
setComposerText(composer, 'keep this local')
expect({
headline: visibleText(screen.getByText("Let's start building")),
workspaceDraft: visibleText(workspaceChip()),
chip: visibleText(workspaceChip()),
composerDisabled: composer.disabled,
sendDisabled: (screen.getByRole('button', { name: 'Send message' }) as HTMLButtonElement).disabled,
sidebar: visibleText(tree),
composerDisabled: (composer as HTMLTextAreaElement).disabled,
prompt: (composer as HTMLTextAreaElement).value,
}).toMatchInlineSnapshot(`
{
"composerDisabled": false,
"chip": "New Workspace",
"composerDisabled": true,
"headline": "Let's start building",
"prompt": "keep this local",
"sendDisabled": true,
"sidebar": "No sessions yet",
"workspaceDraft": "workspace",
}
`)
})
it('creates a real empty Workspace immediately and focuses its Session draft', async () => {
it('creating a Workspace materializes and lists its selected blank Session', async () => {
boot('?fixture=empty')
await screen.findByPlaceholderText('Describe what you want to build', {}, { timeout: 10_000 })
const workspaceSection = screen.getByText('Workspaces').parentElement
if (workspaceSection === null) throw new Error('Workspace section missing')
fireEvent.click(within(workspaceSection).getByRole('button', { name: 'Create workspace' }))
fireEvent.click(await screen.findByRole('menuitem', { name: 'Create workspace' }))
fireEvent.click(await screen.findByRole('menuitem', { name: 'Create a new workspace' }))
await findLockedComposer()
await createWorkspaceViaPicker('nova')
const dialog = await screen.findByRole('dialog', { name: 'Create a new workspace' })
fireEvent.change(within(dialog).getByRole('textbox', { name: 'New workspace name' }), {
target: { value: 'nova' },
})
fireEvent.click(within(dialog).getByRole('button', { name: 'Create workspace' }))
const tree = await screen.findByRole('tree', { name: 'Sessions' })
// The pick connected the workspace: full Session+Agent exists, composer live.
const composer = await findHeroComposer()
const tree = screen.getByRole('tree', { name: 'Sessions' })
await waitFor(() => { expect(within(tree).getByText('1 session')).toBeDefined() })
expect(within(tree).getByText('New Session')).toBeDefined()
const group = within(tree).getByText('1 session').closest('[role="treeitem"]')
const draft = within(tree).getByText('New session').closest('[role="treeitem"]')
if (group === null || draft === null) throw new Error('created Workspace projection missing')
if (group === null) throw new Error('created Workspace projection missing')
expect({
composerDisabled: composer.disabled,
chip: visibleText(workspaceChip()),
workspace: visibleText(group),
draft: visibleText(draft),
draftSelected: draft.getAttribute('aria-selected'),
composerWorkspace: visibleText(workspaceChip()),
}).toMatchInlineSnapshot(`
{
"composerWorkspace": "nova",
"draft": "New session",
"draftSelected": "true",
"chip": "nova",
"composerDisabled": false,
"workspace": "nova1 session",
}
`)
})
it('drops the page-local draft on refresh while retaining real Workspaces and Sessions', async () => {
boot('?fixture')
it('New Session reuses the Workspace blank session and converts the single visible row', async () => {
boot('?fixture=empty')
const composer = await screen.findByPlaceholderText('Describe what you want to build', {}, { timeout: 10_000 })
await findLockedComposer()
await createWorkspaceViaPicker('nova')
await findHeroComposer()
// Back out to the view state and choose the same workspace again: the
// existing blank session is reused — no second entity.
fireEvent.click(screen.getByRole('button', { name: 'New session' }))
await findLockedComposer()
await pickWorkspace('nova')
const composer = await findHeroComposer()
setComposerText(composer, 'first light')
fireEvent.keyDown(composer, { key: 'Enter' })
// Conversion: the accepted prompt flips blank without adding a second row.
await screen.findByText('first light', { exact: true }, { timeout: 10_000 })
const tree = screen.getByRole('tree', { name: 'Sessions' })
setComposerText(composer, 'discard this page-local draft')
const beforeGroup = within(tree).getByText('4 sessions').closest('[role="treeitem"]')
if (beforeGroup === null) throw new Error('fixture Workspace projection missing before refresh')
const before = {
workspace: visibleText(beforeGroup),
draft: visibleText(within(tree).getByText('New session')),
prompt: (composer as HTMLTextAreaElement).value,
}
refresh('?fixture')
const refreshedComposer = await screen.findByPlaceholderText('Describe what you want to build', {}, { timeout: 10_000 })
const refreshedTree = screen.getByRole('tree', { name: 'Sessions' })
const afterGroup = within(refreshedTree).getByText('4 sessions').closest('[role="treeitem"]')
if (afterGroup === null) throw new Error('fixture Workspace projection missing after refresh')
await waitFor(() => { expect(within(tree).getByText('1 session')).toBeDefined() }, { timeout: 10_000 })
const group = within(tree).getByText('1 session').closest('[role="treeitem"]')
if (group === null) throw new Error('converted Session projection missing')
expect({
before,
after: {
workspace: visibleText(afterGroup),
replacementDraft: visibleText(within(refreshedTree).getByText('New session')),
prompt: (refreshedComposer as HTMLTextAreaElement).value,
},
workspace: visibleText(group),
promptVisible: screen.getByText('first light', { exact: true }).textContent,
}).toMatchInlineSnapshot(`
{
"after": {
"prompt": "",
"replacementDraft": "New session",
"workspace": "fixture4 sessions",
},
"before": {
"draft": "New session",
"prompt": "discard this page-local draft",
"workspace": "fixture4 sessions",
},
"promptVisible": "first light",
"workspace": "nova1 session",
}
`)
})
it('keeps a published Session with only cwd membership evidence in Ungrouped', async () => {
it('a failed Workspace attach surfaces in the view state and keeps the composer locked', async () => {
boot('?fixture&fixtureAttach=fail')
const composer = await screen.findByPlaceholderText('Describe what you want to build', {}, { timeout: 10_000 })
setComposerText(composer, 'keep this cwd-only session')
fireEvent.click(screen.getByRole('button', { name: 'Send message' }))
await findLockedComposer()
await pickWorkspace('fixture')
const alert = await screen.findByRole('alert', {}, { timeout: 10_000 })
const composer = await findLockedComposer()
const tree = screen.getByRole('tree', { name: 'Sessions' })
await waitFor(() => { expect(within(tree).getByText('Ungrouped')).toBeDefined() }, { timeout: 10_000 })
const workspaceGroup = within(tree).getByText('3 sessions').closest('[role="treeitem"]')
const ungroupedGroup = within(tree).getByText('1 session').closest('[role="treeitem"]')
const ungroupedSection = ungroupedGroup?.parentElement
if (workspaceGroup === null || ungroupedGroup === null || ungroupedSection === null || ungroupedSection === undefined) {
throw new Error('Workspace or Ungrouped projection missing')
}
const session = within(ungroupedSection).getByRole('treeitem', { selected: true })
const retained = screen.getByDisplayValue('keep this cwd-only session')
const group = within(tree).getByText('3 sessions').closest('[role="treeitem"]')
if (group === null) throw new Error('fixture Workspace projection missing')
expect({
workspace: visibleText(workspaceGroup),
ungrouped: visibleText(ungroupedGroup),
session: within(session).getByText('fixture', { exact: true }).textContent,
sessionSelected: session.getAttribute('aria-selected'),
prompt: (retained as HTMLTextAreaElement).value,
error: visibleText(alert),
composerDisabled: composer.disabled,
workspace: visibleText(group),
}).toMatchInlineSnapshot(`
{
"prompt": "keep this cwd-only session",
"session": "fixture",
"sessionSelected": "true",
"ungrouped": "Ungrouped1 session",
"composerDisabled": true,
"error": "session create failed: workspace-attach-failed: fixture rejected Workspace attachment for fx-1",
"workspace": "fixture3 sessions",
}
`)
})
it('materializes the automatic Workspace and Session on the first successful send', async () => {
boot('?fixture=empty')
const composer = await screen.findByPlaceholderText('Describe what you want to build', {}, { timeout: 10_000 })
setComposerText(composer, 'build a lighthouse')
fireEvent.click(screen.getByRole('button', { name: 'Send message' }))
const tree = screen.getByRole('tree', { name: 'Sessions' })
await waitFor(() => { expect(within(tree).getByText('1 session')).toBeDefined() }, { timeout: 10_000 })
await screen.findByText('build a lighthouse', { exact: true }, { timeout: 10_000 })
const group = within(tree).getByText('1 session').closest('[role="treeitem"]')
const session = within(tree).getByRole('treeitem', { selected: true })
if (group === null) throw new Error('materialized Workspace projection missing')
expect({
workspace: visibleText(group),
session: within(session).getByText('workspace', { exact: true }).textContent,
sessionSelected: session.getAttribute('aria-selected'),
promptVisible: screen.getByText('build a lighthouse', { exact: true }).textContent,
}).toMatchInlineSnapshot(`
{
"promptVisible": "build a lighthouse",
"session": "workspace",
"sessionSelected": "true",
"workspace": "workspace1 session",
}
`)
})
it('keeps the published Workspace, Session, and unsent prompt after rejection', async () => {
it('a rejected first prompt keeps the session blank and the draft in the machine', async () => {
boot('?fixture=empty&fixturePrompt=reject')
const composer = await screen.findByPlaceholderText('Describe what you want to build', {}, { timeout: 10_000 })
await findLockedComposer()
await createWorkspaceViaPicker('nova')
const composer = await findHeroComposer()
setComposerText(composer, 'do not lose this')
fireEvent.click(screen.getByRole('button', { name: 'Send message' }))
const alert = await screen.findByRole('alert', {}, { timeout: 10_000 })
const retained = screen.getByDisplayValue('do not lose this')
// Failure restore rides the machine (no pendingPrompt transaction): the
// draft returns to the same resident textarea one render later.
const retained = await screen.findByDisplayValue('do not lose this')
const tree = screen.getByRole('tree', { name: 'Sessions' })
await waitFor(() => { expect(within(tree).getByText('1 session')).toBeDefined() })
const group = within(tree).getByText('1 session').closest('[role="treeitem"]')
const session = within(tree).getByRole('treeitem', { selected: true })
if (group === null) throw new Error('rejected-send Workspace projection missing')
expect({
workspace: visibleText(group),
session: within(session).getByText('workspace', { exact: true }).textContent,
error: visibleText(alert),
prompt: (retained as HTMLTextAreaElement).value,
stillHero: screen.getByText("Let's start building").textContent,
workspace: visibleText(group),
}).toMatchInlineSnapshot(`
{
"error": "Message send failed: agent-busy: fixture: prompt rejected before acceptance",
"error": "fixture: prompt rejected before acceptance (agent-busy)",
"prompt": "do not lose this",
"session": "workspace",
"workspace": "workspace1 session",
"stillHero": "Let's start building",
"workspace": "nova1 session",
}
`)
})
it('switching Workspace before the first message carries the draft to the new blank session', async () => {
boot('?fixture')
await findLockedComposer()
await pickWorkspace('fixture')
const composer = await findHeroComposer()
setComposerText(composer, 'carry me')
// Switch = session switch: the new workspace's blank session takes over,
// the typed draft moves machine-to-machine, the old blank stays hidden.
await createWorkspaceViaPicker('nova')
await waitFor(() => { expect(visibleText(workspaceChip())).toBe('nova') }, { timeout: 10_000 })
const carried = await screen.findByDisplayValue('carry me')
const tree = screen.getByRole('tree', { name: 'Sessions' })
const fixtureGroup = within(tree).getByText('3 sessions').closest('[role="treeitem"]')
const novaGroup = within(tree).getByText('1 session').closest('[role="treeitem"]')
if (fixtureGroup === null || novaGroup === null) throw new Error('Workspace projections missing after switch')
expect({
chip: visibleText(workspaceChip()),
prompt: (carried as HTMLTextAreaElement).value,
fixtureWorkspace: visibleText(fixtureGroup),
novaWorkspace: visibleText(novaGroup),
}).toMatchInlineSnapshot(`
{
"chip": "nova",
"fixtureWorkspace": "fixture3 sessions",
"novaWorkspace": "nova1 session",
"prompt": "carry me",
}
`)
})