eslint.config.js

import js from '@eslint/js';
import globals from 'globals';
import jest from 'eslint-plugin-jest';

export default [
  { ignores: ['dist', 'out', 'coverage'] },
  {
    ...js.configs.recommended,
    files: ['**/*.js'],
    languageOptions: {
      ecmaVersion: 2020,
      globals: {
        ...globals.node,
        ...globals.browser,
      },
    },
  },
  {
    files: ['**/*.test.js', '**/tests/**/*.js'],
    ...jest.configs['flat/recommended'],
    languageOptions: {
      ecmaVersion: 2020,
      globals: {
        ...globals.node,
        ...globals.jest,
      },
    },
    rules: {
      ...jest.configs['flat/recommended'].rules,
      'jest/expect-expect': 'warn',
      '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',
    },
  }
];