no-named-as-default.js

import { test, SYNTAX_CASES } from '../utils';
import { RuleTester } from 'eslint';

const ruleTester = new RuleTester();
const rule = require('rules/no-named-as-default');

ruleTester.run('no-named-as-default', rule, {
  valid: [
    test({ code: 'import "./malformed.js"' }),

    test({ code: 'import bar, { foo } from "./bar";' }),
    test({ code: 'import bar, { foo } from "./empty-folder";' }),

    // es7
    test({ code: 'export bar, { foo } from "./bar";',
      parser: require.resolve('babel-eslint') }),
    test({ code: 'export bar from "./bar";',
      parser: require.resolve('babel-eslint') }),

    // #566: don't false-positive on `default` itself
    test({ code: 'export default from "./bar";',
      parser: require.resolve('babel-eslint') }),

    ...SYNTAX_CASES,
  ],

  invalid: [
    test({
      code: 'import foo from "./bar";',
      errors: [ {
        message: 'Using exported name \'foo\' as identifier for default export.',
        type: 'ImportDefaultSpecifier' } ] }),
    test({
      code: 'import foo, { foo as bar } from "./bar";',
      errors: [ {
        message: 'Using exported name \'foo\' as identifier for default export.',
        type: 'ImportDefaultSpecifier' } ] }),

    // es7
    test({
      code: 'export foo from "./bar";',
      parser: require.resolve('babel-eslint'),
      errors: [ {
        message: 'Using exported name \'foo\' as identifier for default export.',
        type: 'ExportDefaultSpecifier' } ] }),
    test({
      code: 'export foo, { foo as bar } from "./bar";',
      parser: require.resolve('babel-eslint'),
      errors: [ {
        message: 'Using exported name \'foo\' as identifier for default export.',
        type: 'ExportDefaultSpecifier' } ] }),

    test({
      code: 'import foo from "./malformed.js"',
      errors: [{
        message: "Parse errors in imported module './malformed.js': 'return' outside of function (1:1)",
        type: 'Literal',
      }],
    }),
  ],
});