Chore/add unit test for utils (#17858)

web/hooks/use-timestamp.spec.ts

@@ -0,0 +1,65 @@
+import { renderHook } from '@testing-library/react'
+import useTimestamp from './use-timestamp'
+
+jest.mock('@/context/app-context', () => ({
+  useAppContext: jest.fn(() => ({
+    userProfile: {
+      id: '8b18e24b-1ac8-4262-aa5c-e9aa95c76846',
+      name: 'test',
+      avatar: null,
+      avatar_url: null,
+      email: 'test@dify.ai',
+      is_password_set: false,
+      interface_language: 'zh-Hans',
+      interface_theme: 'light',
+      timezone: 'Asia/Shanghai',
+      last_login_at: 1744188761,
+      last_login_ip: '127.0.0.1',
+      created_at: 1728444483,
+    },
+  })),
+}))
+
+describe('useTimestamp', () => {
+  describe('formatTime', () => {
+    it('should format unix timestamp correctly', () => {
+      const { result } = renderHook(() => useTimestamp())
+      const timestamp = 1704132000
+
+      expect(result.current.formatTime(timestamp, 'YYYY-MM-DD HH:mm:ss'))
+        .toBe('2024-01-02 02:00:00')
+    })
+
+    it('should format with different patterns', () => {
+      const { result } = renderHook(() => useTimestamp())
+      const timestamp = 1704132000
+
+      expect(result.current.formatTime(timestamp, 'MM/DD/YYYY'))
+        .toBe('01/02/2024')
+
+      expect(result.current.formatTime(timestamp, 'HH:mm'))
+        .toBe('02:00')
+    })
+  })
+
+  describe('formatDate', () => {
+    it('should format date string correctly', () => {
+      const { result } = renderHook(() => useTimestamp())
+      const dateString = '2024-01-01T12:00:00Z'
+
+      expect(result.current.formatDate(dateString, 'YYYY-MM-DD HH:mm:ss'))
+        .toBe('2024-01-01 20:00:00')
+    })
+
+    it('should format with different patterns', () => {
+      const { result } = renderHook(() => useTimestamp())
+      const dateString = '2024-01-01T12:00:00Z'
+
+      expect(result.current.formatDate(dateString, 'MM/DD/YYYY'))
+        .toBe('01/01/2024')
+
+      expect(result.current.formatDate(dateString, 'HH:mm'))
+        .toBe('20:00')
+    })
+  })
+})