eslint-plugin-sort-requires-fix/tests/lib/rules/sort-requires.js

ESLint rule to enforce sorting of variable declarations in a group of require() calls

const rule = require('../../../lib').rules['sort-requires-fix'];
const { RuleTester } = require('eslint');

const code = (lines) => lines.join('\n');
const ruleTester = new RuleTester();

ruleTester.run('sort-requires-fix', rule, {
  valid: [
    code(['var a = require()', 'var b = require()']),
    code(['var a = require()', 'var b =', '  require()', 'var c = require()']),
    code(['var a = require()', 'var A = require()']),
    code(['var A = require()', 'var a = require()']),
    code(['var a = require()', 'var c = require()', '', 'var b = require()']),
    code([
      'var a = require()[0]',
      'var b = require().test',
      'var c = require().test[0]',
    ]),
    {
      code: code([
        'var _ = require()',
        'var a = require()',
        'var A = require()',
        'var b = require()',
        'var B = require()',
        'var { a } = require()',
        'var { b } = require()',
      ]),
      parserOptions: { ecmaVersion: 6 },
    },
    {
      code: code(['const a = require()', 'const b = require()']),
      parserOptions: { ecmaVersion: 6 },
    },
    {
      code: code(['const b = require()', 'let a = require()']),
      parserOptions: { ecmaVersion: 6 },
    },
    code(['var b = "hi"', 'var a = "sup"']),
    code(['var a = require()', 'var c = require()', '', 'var b = require()']),
  ],

  invalid: [
    {
      code: code(['var b = require().default', 'var a = require()']),
      output: code(['var a = require()', 'var b = require().default']),
      errors: [{ message: 'This group of requires is not sorted' }],
    },
    {
      code: code(['var b =', '  require()', 'var a = require()']),
      output: code(['var a = require()', 'var b =', '  require()']),
      errors: [{ message: 'This group of requires is not sorted' }],
    },
    {
      code: code(['var b =', '', '  require()', 'var a = require()']),
      output: code(['var a = require()', 'var b =', '', '  require()']),
      errors: [{ message: 'This group of requires is not sorted' }],
    },
    {
      code: code(['var { b } = require()', 'var { a } = require()']),
      errors: [{ message: 'This group of requires is not sorted' }],
      parserOptions: { ecmaVersion: 6 },
    },
    {
      code: code(['var { c, a } = require()', 'var { b } = require()']),
      output: code(['var { b } = require()', 'var { c, a } = require()']),
      errors: [{ message: 'This group of requires is not sorted' }],
      parserOptions: { ecmaVersion: 6 },
    },
    {
      code: code(['var { b } = require()', 'var a = require()']),
      errors: [{ message: 'This group of requires is not sorted' }],
      parserOptions: { ecmaVersion: 6 },
    },
    {
      code: code(['let a = require()', 'const B = require()']),
      output: code(['const B = require()', 'let a = require()']),
      errors: [{ message: 'This group of requires is not sorted' }],
      parserOptions: { ecmaVersion: 6 },
    },
    {
      code: code([
        'const a = require()',
        'let c = require()',
        'let b = require()',
      ]),
      output: code([
        'const a = require()',
        'let b = require()',
        'let c = require()',
      ]),
      errors: [{ message: 'This group of requires is not sorted' }],
      parserOptions: { ecmaVersion: 6 },
    },
    {
      code: code([
        'var c = require().test[0]',
        'var b = require().test',
        'var a = require()[0]',
      ]),
      output: code([
        'var a = require()[0]',
        'var b = require().test',
        'var c = require().test[0]',
      ]),
      errors: [{ message: 'This group of requires is not sorted' }],
    },
    {
      code: code([
        'var b = require()',
        'var a = require()',
        '',
        'var d = require()',
        'var c = require()',
      ]),
      output: code([
        'var a = require()',
        'var b = require()',
        '',
        'var c = require()',
        'var d = require()',
      ]),
      errors: [
        { message: 'This group of requires is not sorted' },
        { message: 'This group of requires is not sorted' },
      ],
    },
  ],
});