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@@ -16,6 +16,10 @@ import { join } from 'node:path'
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import type { Browser, Page } from 'playwright'
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import { chromium } from 'playwright'
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import { afterAll, beforeAll, describe, expect, it, onTestFailed } from 'vitest'
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+import {
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+ SESSION_FORMAT_VERSION, SessionId as sessionId, type SessionEvent, type SessionId,
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+} from '@deepseek-ai/dsh-session'
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+import { snapshotSubagentDescriptor } from '@deepseek-ai/dsh-subagent'
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import {
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captureStableAria, compareOrRefreshGolden, launchWebScaffold, seedSession, watchConsole,
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webSnapshotMode, type WebScaffold,
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@@ -78,6 +82,60 @@ function seedLog(): string {
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].join('\n')
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}
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+/**
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+ * Persist one child so the assembled header snapshot exercises both action
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+ * contributors whose relative order is the product contract under test.
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+ * @param scaffold - the booted Web scaffold.
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+ * @param parentId - the seeded session whose header the browser opens.
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+ */
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+async function seedSubagent(scaffold: WebScaffold, parentId: SessionId): Promise<void> {
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+ const childId = sessionId('agent-preset-selection-child')
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+ const createdAt = 1784974100100
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+ await scaffold.ctx.sessionPersistence.create({
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+ version: SESSION_FORMAT_VERSION,
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+ id: childId,
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+ createdAt,
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+ cwd: scaffold.workspaceCwd,
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+ parentSession: parentId,
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+ origin: 'subagent',
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+ delegationDepth: 1,
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+ agentPreset: 'minimal',
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+ })
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+ await scaffold.ctx.sessionPersistence.append(childId, [
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+ {
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+ type: 'turn/start',
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+ seq: 0,
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+ time: createdAt,
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+ data: { turn: 1, trigger: { kind: 'message', source: { kind: 'user' } } },
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+ },
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+ {
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+ type: 'user/message',
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+ seq: 1,
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+ time: createdAt + 1,
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+ data: {
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+ content: [{ type: 'text', text: 'Check the session-header action order.' }],
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+ source: { kind: 'user' },
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+ },
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+ surfaceOp: 'append',
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+ },
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+ {
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+ type: 'subagent/descriptor',
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+ seq: 2,
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+ time: createdAt + 2,
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+ data: snapshotSubagentDescriptor({
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+ mode: 'one-shot', provider: 'spawn', label: 'header order probe',
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+ }),
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+ },
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+ {
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+ type: 'turn/end',
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+ seq: 3,
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+ time: createdAt + 3,
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+ data: { turn: 1, reason: { kind: 'completed' } },
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+ },
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+ ] as SessionEvent[])
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+ await scaffold.ctx.sessionProjectionCache.coldSnapshot(childId)
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+}
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+
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/**
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* The preset the host reports for the blank session the workspace connect
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* produced. Addressed by id rather than by scanning the serialized list: the
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@@ -120,7 +178,8 @@ describe('web e2e: agent-preset selection', () => {
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// A resumed session runs what it was created with; seeding one that
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// records `minimal` is what makes the header label a claim about the
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// session rather than an echo of the current default.
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- await seedSession(scaffold, seedLog(), SEED_ID, 'minimal')
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+ const seededId = await seedSession(scaffold, seedLog(), SEED_ID, 'minimal')
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+ await seedSubagent(scaffold, seededId)
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await seedWorkspaceSkill(scaffold.workspaceCwd)
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browser = await chromium.launch()
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page = await newEnglishPage(browser)
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@@ -222,6 +281,8 @@ describe('web e2e: agent-preset selection', () => {
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await compareOrRefreshGolden(HEADER_EXPECTED, snapshot, MODE)
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expect(snapshot).toContain('Minimal mode')
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+ expect(snapshot).toContain('button "1 subagent"')
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+ expect(snapshot.indexOf('Minimal mode')).toBeLessThan(snapshot.indexOf('button "1 subagent"'))
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// Static chrome, not a control: the header can only report a composition
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// the host would refuse to change.
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expect(snapshot).not.toContain('button "Minimal mode"')
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Yichen Jiang