task-16(壳层/路由): 实现退出登录入口的壳层交互(确认式)

logout.ts 定义 runLogout 纯流程(确认通过才 signOut，异常上抛由壳层反馈)；
AdminLayout 用 ElMessageBox.confirm 确认后再执行 store.signOut($reset + /login)。

admin-frontend-vue/tests/task-16.test.ts

@@ -0,0 +1,80 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readSource } from './helpers.ts'
+import {
+  LOGOUT_CONFIRM_CANCEL,
+  LOGOUT_CONFIRM_MESSAGE,
+  LOGOUT_CONFIRM_OK,
+  LOGOUT_CONFIRM_TITLE,
+  runLogout,
+} from '../src/layout/logout.ts'
+
+test('test_task_016_shell_logout_interaction_normal_primary_path', async () => {
+  // 正常主路径：确认后执行退出。
+  let signedOut = 0
+  await runLogout({ confirm: async () => true, signOut: async () => { signedOut += 1 } })
+  assert.equal(signedOut, 1)
+})
+
+test('test_task_016_shell_logout_interaction_normal_variant_input', async () => {
+  // 正常变体：取消确认则不退出。
+  let signedOut = 0
+  await runLogout({ confirm: async () => false, signOut: async () => { signedOut += 1 } })
+  assert.equal(signedOut, 0)
+})
+
+test('test_task_016_shell_logout_interaction_normal_repeated_operation_is_idempotent', async () => {
+  // 正常重复：多次确认分别各执行一次，互不污染状态。
+  let signedOut = 0
+  const deps = { confirm: async () => true, signOut: async () => { signedOut += 1 } }
+  await runLogout(deps)
+  await runLogout(deps)
+  assert.equal(signedOut, 2)
+})
+
+test('test_task_016_shell_logout_interaction_boundary_empty_input', async () => {
+  // 边界空值：确认被拒后即便 signOut 有副作用也不会被调用。
+  let signedOut = 0
+  await runLogout({ confirm: async () => false, signOut: async () => { signedOut += 1 } })
+  assert.equal(signedOut, 0)
+})
+
+test('test_task_016_shell_logout_interaction_boundary_single_item', async () => {
+  // 边界单元素：signOut 异常向上抛出，供调用方反馈（不静默）。
+  await assert.rejects(
+    runLogout({ confirm: async () => true, signOut: async () => { throw new Error('退出接口失败') } }),
+    /退出接口失败/,
+  )
+})
+
+test('test_task_016_shell_logout_interaction_boundary_limit_or_missing_field', () => {
+  // 边界上限/缺字段：确认文案齐全、按钮语义完整。
+  assert.ok(LOGOUT_CONFIRM_MESSAGE.length > 0)
+  assert.ok(LOGOUT_CONFIRM_TITLE.length > 0)
+  assert.ok(LOGOUT_CONFIRM_OK.length > 0)
+  assert.ok(LOGOUT_CONFIRM_CANCEL.length > 0)
+})
+
+test('test_task_016_shell_logout_interaction_invalid_input_rejected', async () => {
+  // 异常输入：确认对话框异常（fail-closed），不得退出。
+  let signedOut = 0
+  await assert.rejects(
+    runLogout({
+      confirm: async () => { throw new Error('弹窗异常') },
+      signOut: async () => { signedOut += 1 },
+    }),
+    /弹窗异常/,
+  )
+  assert.equal(signedOut, 0)
+})
+
+test('test_task_016_shell_logout_interaction_dependency_failure_returns_actionable_message', () => {
+  // 依赖失败：壳层使用 ElMessageBox 确认 + runLogout；store 退出清态并跳登录。
+  const layout = readSource('src/layout/AdminLayout.vue')
+  assert.match(layout, /ElMessageBox\.confirm/)
+  assert.match(layout, /runLogout/)
+  const store = readSource('src/stores/admin-session.ts')
+  assert.match(store, /\$reset\(\)/)
+  assert.match(store, /location\.assign\('\/login'\)/)
+  assert.match(layout, /LOGOUT_CONFIRM_MESSAGE/)
+})

admin-frontend-vue/tests/task-3.test.ts

@@ -47,7 +47,7 @@ test('test_task_003_layout_contract_boundary_single_item', () => {
 test('test_task_003_layout_contract_boundary_limit_or_missing_field', () => {
   // 边界上限：Element Plus 交互能力按需命名导入，不整包拖入壳层。
   const layout = readSource(LAYOUT)
-  assert.match(layout, /import\s*\{\s*ElMessage\s*\}\s*from\s*['"]element-plus['"]/)
+  assert.match(layout, /import\s*\{\s*ElMessage(?:,\s*\w+)*\s*\}\s*from\s*['"]element-plus['"]/)
   assert.equal(occurrences(layout, 'import ElementPlus'), 0, '壳层不得整包导入 ElementPlus')
 })