调整结构

frontend/src/utils/user.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from 'vitest'
+
+import { formatDate, initials } from './user'
+
+describe('用户展示工具', () => {
+  it('可以生成姓名缩写', () => {
+    expect(initials('Lin Chen')).toBe('LC')
+    expect(initials('晓晨')).toBe('晓晨')
+  })
+
+  it('可以格式化日期', () => {
+    expect(formatDate('2025-01-02T00:00:00Z')).toContain('2025')
+  })
+})