[RED] added test for client list admin

src/scenes/admin/ClientListAdmin/index.test.tsx

 import React from 'react';
 import { render } from 'utils/testing';
 import * as ROUTES from 'constants/routes';
+import axios from 'axios';
 
 import ClientListAdmin from '.';
 
+jest.mock('axios');
+const mockAxios = axios as jest.Mocked<typeof axios>;
+
 describe('ClientListAdmin', () => {
-  it('renders correctly', () => {
+  it('renders correctly', async () => {
+    mockAxios.request.mockImplementationOnce(() =>
+      Promise.resolve({
+        status: 200,
+        data: [],
+      }),
+    );
     render(<ClientListAdmin />, ROUTES.clientListForAdmin);
   });
 });