大家好，有谁能解释一下如何在react原生中用jest测试formik吗？

npm install --save-dev jest react-test-renderer

import React from 'react';
import { render, fireEvent } from '@testing-library/react';
import { Formik, Form, Field } from 'formik';
import { act } from 'react-dom/test-utils';

test('Formik renders correctly', () => {
  const onSubmit = jest.fn();
  const initialValues = { name: '' };

  const { getByLabelText, getByText } = render(
    <Formik initialValues={initialValues} onSubmit={onSubmit}>
      <Form>
        <Field name="name" />
        <button type="submit">Submit</button>
      </Form>
    </Formik>
  );

  const nameInput = getByLabelText('Name');
  const submitButton = getByText('Submit');

  act(() => {
    fireEvent.change(nameInput, { target: { value: 'John' } });
    fireEvent.click(submitButton);
  });

  expect(onSubmit).toHaveBeenCalledWith({ name: 'John' });
});

npx jest Formik.test.js