Example of running axe-core using Jest and @testing-library/react

.babelrc

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "targets": {
          "node": "current"
        }
      }
    ],
    "@babel/preset-react"
  ]
}

index.spec.js

import React from 'react'
import { render, cleanup } from '@testing-library/react'
import axe from 'axe-core';
import assert from 'assert';

const App = () => <h1>Hello World</h1>

describe("axe-core, jest, @testing-library/react", () => {
  afterEach(() => {
    cleanup();
  });

  it('should test @testing-library/react component', async () => {
    // @testing-library/react automatically appends the container to the DOM
    const { container } = render(<App />);
    const results = await axe.run(container);
    assert.equal(results.violations.length, 0);
  });
});

package.json

{
  "scripts": {
    "test": "jest"
  },
  "devDependencies": {
    "@babel/preset-env": "^7.16.11",
    "@babel/preset-react": "^7.16.7",
    "@testing-library/react": "^12.1.3",
    "axe-core": "^4.4.1",
    "jest": "^27.5.1",
    "react": "^17.0.2",
    "react-dom": "^17.0.2"
  },
  "jest": {
    "testEnvironment": "jsdom"
  }
}