.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es6: true,
    node: true,
    jest: true,
    mocha: true,
  },
  extends: [
    'eslint:recommended',
    'plugin:react/recommended',
    'plugin:prettier/recommended',
    'plugin:jest/recommended',
    'plugin:wdio/recommended',
  ],
  globals: {
    Atomics: 'readonly',
    SharedArrayBuffer: 'readonly',
  },
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 2018,
    sourceType: 'module',
  },
  plugins: ['jest', 'wdio'],
  rules: {
    'arrow-parens': [2, 'always'],
    'jest/no-disabled-tests': 'warn',
    'jest/no-focused-tests': 'error',
    'jest/no-identical-title': 'error',
    'jest/prefer-to-have-length': 'warn',
    'jest/valid-expect': 'error',
  },
  settings: {
    react: {
      version: '>=16.8.6',
    },
  },
}