在Jest测试中，使用AbortController来取消异步请求可能会失败，因为Jest的运行环境中没有原生的AbortController。一个有效的解决方法是使用“jest-mock-fetch”包模拟fetch请求并使用fetch-mock-jest包进行拦截和取消请求。以下是一个示例：

import fetchMock from 'jest-fetch-mock';
import { setupServer } from 'msw/node';
import { rest } from 'msw';

const server = setupServer(
  rest.get('/api/data', (req, res, ctx) => {
    const controller = new AbortController();
    const { signal } = controller;

    setTimeout(() => controller.abort(), 1000);

    return res(ctx.json({ data: 'Mock data' }), ctx.status(200), ctx.delay(2000), ctx.onAbort(signal));
  })
);

beforeAll(() => {
  server.listen({ onUnhandledRequest: 'error' });

  fetchMock.enableMocks();
});

afterAll(() => {
  server.close();

  fetchMock.disableMocks();
});

test('AbortController works', async () => {
  const ac = new AbortController();
  const { signal } = ac;

  const fetchPromise = fetch('/api/data', { signal });

  setTimeout(() => ac.abort(), 500);

  await expect(fetchPromise).rejects.toThrow('The user aborted a request.');
});