eslint-plugin-jsx-a11y
Version:
Static AST checker for accessibility rules on JSX elements.
60 lines (52 loc) • 2.08 kB
JavaScript
/**
* @fileoverview Enforce lang attribute has a valid value.
* @author Ethan Cohen
*/
// -----------------------------------------------------------------------------
// Requirements
// -----------------------------------------------------------------------------
import { RuleTester } from 'eslint';
import parserOptionsMapper from '../../__util__/parserOptionsMapper';
import parsers from '../../__util__/helpers/parsers';
import rule from '../../../src/rules/lang';
// -----------------------------------------------------------------------------
// Tests
// -----------------------------------------------------------------------------
const ruleTester = new RuleTester();
const expectedError = {
message: 'lang attribute must have a valid value.',
type: 'JSXAttribute',
};
const componentsSettings = {
'jsx-a11y': {
polymorphicPropName: 'as',
components: {
Foo: 'html',
},
},
};
ruleTester.run('lang', rule, {
valid: parsers.all([].concat(
{ code: '<div />;' },
{ code: '<div foo="bar" />;' },
{ code: '<div lang="foo" />;' },
{ code: '<html lang="en" />' },
{ code: '<html lang="en-US" />' },
{ code: '<html lang="zh-Hans" />' },
{ code: '<html lang="zh-Hant-HK" />' },
{ code: '<html lang="zh-yue-Hant" />' },
{ code: '<html lang="ja-Latn" />' },
{ code: '<html lang={foo} />' },
{ code: '<HTML lang="foo" />' },
{ code: '<Foo lang={undefined} />' },
{ code: '<Foo lang="en" />', settings: componentsSettings },
{ code: '<Box as="html" lang="en" />', settings: componentsSettings },
)).map(parserOptionsMapper),
invalid: parsers.all([].concat(
{ code: '<html lang="foo" />', errors: [expectedError] },
{ code: '<html lang="zz-LL" />', errors: [expectedError] },
{ code: '<html lang={undefined} />', errors: [expectedError] },
{ code: '<Foo lang={undefined} />', settings: componentsSettings, errors: [expectedError] },
{ code: '<Box as="html" lang="foo" />', settings: componentsSettings, errors: [expectedError] },
)).map(parserOptionsMapper),
});