期望toContain文本来自jest、酶和React中的一组值

test('array contains value', () => {
  const array = [1, 2, 3];
  expect(array).toContain(2);
});

test('string contains substring', () => {
  const str = 'Hello, world!';
  expect(str).toContain('world');
});

import React from 'react';
import { shallow } from 'enzyme';
import MyComponent from './MyComponent';

test('component contains text', () => {
  const wrapper = shallow(<MyComponent />);
  expect(wrapper.text()).toContain('Expected Text');
});

test('specific element contains text', () => {
  const wrapper = shallow(<MyComponent />);
  expect(wrapper.find('.specific-class').text()).toContain('Expected Text');
});

import React from 'react';
import { render, screen } from '@testing-library/react';
import MyComponent from './MyComponent';

test('component contains text', () => {
  render(<MyComponent />);
  expect(screen.getByText(/Expected Text/i)).toBeInTheDocument();
});