initialize project with Vue 3, Vite, and Element Plus; set up basic routing, components, configuration, and project structure

tests/new-chat.spec.js

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+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { mount, flushPromises } from '@vue/test-utils'
+import { createRouter, createMemoryHistory } from 'vue-router'
+import ElementPlus from 'element-plus'
+import NewChatButton from '../src/components/NewChatButton.vue'
+import LoginView from '../src/views/LoginView.vue'
+import axios from 'axios'
+
+vi.mock('axios', () => ({
+  default: {
+    post: vi.fn(),
+  },
+}))
+
+const mockedAxios = axios
+
+const makeRouter = () =>
+  createRouter({
+    history: createMemoryHistory(),
+    routes: [
+      { path: '/', name: 'login', component: LoginView },
+      { path: '/welcome', name: 'welcome', component: LoginView },
+    ],
+  })
+
+describe('NewChatButton', () => {
+  beforeEach(() => {
+    localStorage.clear()
+    vi.clearAllMocks()
+  })
+
+  it('redirects to login when no token', async () => {
+    const router = makeRouter()
+    router.push('/welcome')
+    await router.isReady()
+
+    const wrapper = mount(NewChatButton, {
+      global: {
+        plugins: [router, ElementPlus],
+      },
+    })
+
+    await wrapper.find('[data-testid="new-chat-trigger"]').trigger('click')
+    await flushPromises()
+    await wrapper.find('[data-testid="create-session"]').trigger('click')
+    await flushPromises()
+
+    expect(router.currentRoute.value.name).toBe('login')
+  })
+
+  it('creates session with Authorization header', async () => {
+    localStorage.setItem('ars-token', 'jwt-token')
+    mockedAxios.post.mockResolvedValue({
+      data: { session_id: 'session-123', session_name: 'Demo' },
+    })
+
+    const router = makeRouter()
+    router.push('/welcome')
+    await router.isReady()
+
+    const wrapper = mount(NewChatButton, {
+      global: {
+        plugins: [router, ElementPlus],
+      },
+    })
+
+    // 直接调用方法以绕过弹层结构细节
+    wrapper.vm.sessionName = 'Demo Session'
+    await wrapper.vm.createSession()
+    await flushPromises()
+
+    expect(mockedAxios.post).toHaveBeenCalledWith(
+      'http://localhost:8000/api/sessions',
+      expect.objectContaining({ session_name: 'Demo Session' }),
+      expect.objectContaining({
+        headers: expect.objectContaining({
+          Authorization: 'Bearer jwt-token',
+        }),
+      })
+    )
+    expect(localStorage.getItem('ars-last-session')).toBe('session-123')
+  })
+})