eslint-plugin-lit-a11y
Version:
linting plugin for lit-a11y
60 lines (54 loc) • 1.55 kB
JavaScript
/**
* @fileoverview Ensures the document has a valid `lang` attribute.
* @author open-wc
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const { RuleTester } = require('eslint');
const rule = require('../../../lib/rules/valid-lang.js');
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester({
settings: { litHtmlSources: false },
parserOptions: {
sourceType: 'module',
ecmaVersion: 2015,
},
});
ruleTester.run('valid-lang', rule, {
valid: [
{
code: "html`<html lang='en'></html>`",
},
{
code: "html`<div lang='en'></div>`",
},
{
code: 'html`<html lang="${\'en\'}"></html>`',
},
],
invalid: [
{
code: 'html`<html></html>`',
errors: [{ messageId: 'noLangPresent', column: 6 }],
},
{
code: 'html`<html>\n<div></div>\n</html>`',
errors: [{ messageId: 'noLangPresent', column: 6 }],
},
{
code: "html`<html lang='invalid-lang'></html>`",
errors: [{ messageId: 'invalidLang', column: 12 }],
},
{
code: 'html`<html lang=${"foobar"}></html>`',
errors: [{ messageId: 'invalidLang', column: 12 }],
},
{
code: 'html`<html lang=${1}></html>`',
errors: [{ messageId: 'invalidLang', column: 12 }],
},
],
});