feat: add admin password reset

src/components/AdminPage.test.ts

@@ -14,7 +14,8 @@ vi.mock('../composables/useAuth', () => ({
 
 describe('AdminPage', () => {
   beforeEach(() => {
-    vi.clearAllMocks()
+    authedFetch.mockReset()
+    logout.mockReset()
     authedFetch.mockResolvedValue([
       { id: 'u1', username: 'teacher', role: 'user', createdAt: '2026-01-01T00:00:00.000Z' },
     ])
@@ -33,8 +34,42 @@ describe('AdminPage', () => {
       expect.arrayContaining(['ui-button', 'ui-button--primary']),
     )
     expect(wrapper.get('table').classes()).toContain('ui-table')
+    expect(wrapper.get('button[data-testid="reset-password-u1"]').classes()).toContain('ui-button')
     expect(wrapper.get('button[data-testid="delete-user-u1"]').classes()).toEqual(
       expect.arrayContaining(['ui-button', 'ui-button--danger']),
     )
   })
+
+  it('resets a user password after confirmation', async () => {
+    vi.spyOn(window, 'confirm').mockReturnValue(true)
+    authedFetch.mockResolvedValueOnce([
+      { id: 'u1', username: 'teacher', role: 'user', createdAt: '2026-01-01T00:00:00.000Z' },
+    ])
+    authedFetch.mockResolvedValueOnce({ ok: true })
+
+    const wrapper = mount(AdminPage)
+    await flushPromises()
+
+    await wrapper.get('button[data-testid="reset-password-u1"]').trigger('click')
+    await flushPromises()
+
+    expect(window.confirm).toHaveBeenCalledWith('确定要将该用户密码重置为 123456 吗？')
+    expect(authedFetch).toHaveBeenCalledWith('/api/admin/users/u1/reset-password', { method: 'POST' })
+    expect(wrapper.text()).toContain('已将密码重置为 123456。')
+  })
+
+  it('does not reset a password when confirmation is declined', async () => {
+    vi.spyOn(window, 'confirm').mockReturnValue(false)
+    authedFetch.mockResolvedValueOnce([
+      { id: 'u1', username: 'teacher', role: 'user', createdAt: '2026-01-01T00:00:00.000Z' },
+    ])
+
+    const wrapper = mount(AdminPage)
+    await flushPromises()
+
+    await wrapper.get('button[data-testid="reset-password-u1"]').trigger('click')
+    await flushPromises()
+
+    expect(authedFetch).toHaveBeenCalledTimes(1)
+  })
 })