Example of running axe-core using Jest and Enzyme

.babelrc

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

index.spec.js

import React from 'react';
import { mount, render } from 'enzyme';
import axe from 'axe-core';
import assert from 'assert';

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

describe("axe-core, jest, enzyme", () => {
  // axe can only run on connected DOM nodes so we need to mount each component
  // into the DOM tree
  let fixture = document.createElement('div');
  document.body.appendChild(fixture);

  let component;
  afterEach(() => {
    component?.unmount();
  });

  it('should test enzyme component', async () => {
    component = mount(<App />, { attachTo: fixture });
    const results = await axe.run(fixture);
    assert.equal(results.violations.length, 0);
  });
});

jest.setup.js

const Enzyme = require('enzyme');
const Adapter = require('@wojtekmaj/enzyme-adapter-react-17');

Enzyme.configure({ adapter: new Adapter() });

package.json

{
  "scripts": {
    "test": "jest"
  },
  "devDependencies": {
    "@babel/preset-env": "^7.16.11",
    "@babel/preset-react": "^7.16.7",
    "@wojtekmaj/enzyme-adapter-react-17": "^0.6.6",
    "axe-core": "^4.4.1",
    "enzyme": "^3.11.0",
    "jest": "^27.5.1",
    "react": "^17.0.2",
    "react-dom": "^17.0.2"
  },
  "jest": {
    "testEnvironment": "jsdom",
    "setupFilesAfterEnv": [
      "<rootDir>/jest.setup.js"
    ]
  }
}