小编Smi*_*876的帖子

尝试对此组件进行简单测试时，出现 TypeError: actImplementation is not a function

import React from 'react';
import { StyledHeaderContainer, StyledTitle } from './styled';

export const Header = () => {
  return (
    <StyledHeaderContainer>
      <StyledTitle data-testid='title-test-id'>Subject Access Request</StyledTitle>
    </StyledHeaderContainer>
  );
};

这是我的测试

import * as React from 'react';
import 'jest-styled-components';

import { render, screen } from '@testing-library/react';
import { Header } from '../';
import "@testing-library/jest-dom";

describe('Header', () => {
  it('is rendered correctly', () => {
    expect(<Header />).toMatchSnapshot();
  });
});

describe('Title', () => {
    it('should have correct …