heading-has-content-test.js
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/* eslint-env jest */
/**
* @fileoverview Enforce heading (h1, h2, etc) elements contain accessible content.
* @author Ethan Cohen
*/
// -----------------------------------------------------------------------------
// Requirements
// -----------------------------------------------------------------------------
import { RuleTester } from 'eslint';
import parserOptionsMapper from '../../__util__/parserOptionsMapper';
import rule from '../../../src/rules/heading-has-content';
// -----------------------------------------------------------------------------
// Tests
// -----------------------------------------------------------------------------
const ruleTester = new RuleTester();
const expectedError = {
message: 'Headings must have content and the content must be accessible by a screen reader.',
type: 'JSXOpeningElement',
};
const components = [{
components: ['Heading', 'Title'],
}];
ruleTester.run('heading-has-content', rule, {
valid: [
// DEFAULT ELEMENT TESTS
{ code: '<div />;' },
{ code: '<h1>Foo</h1>' },
{ code: '<h2>Foo</h2>' },
{ code: '<h3>Foo</h3>' },
{ code: '<h4>Foo</h4>' },
{ code: '<h5>Foo</h5>' },
{ code: '<h6>Foo</h6>' },
{ code: '<h6>123</h6>' },
{ code: '<h1><Bar /></h1>' },
{ code: '<h1>{foo}</h1>' },
{ code: '<h1>{foo.bar}</h1>' },
{ code: '<h1 dangerouslySetInnerHTML={{ __html: "foo" }} />' },
{ code: '<h1 children={children} />' },
// CUSTOM ELEMENT TESTS FOR COMPONENTS OPTION
{ code: '<Heading>Foo</Heading>', options: components },
{ code: '<Title>Foo</Title>', options: components },
{ code: '<Heading><Bar /></Heading>', options: components },
{ code: '<Heading>{foo}</Heading>', options: components },
{ code: '<Heading>{foo.bar}</Heading>', options: components },
{ code: '<Heading dangerouslySetInnerHTML={{ __html: "foo" }} />', options: components },
{ code: '<Heading children={children} />', options: components },
{ code: '<h1 aria-hidden />' },
].map(parserOptionsMapper),
invalid: [
// DEFAULT ELEMENT TESTS
{ code: '<h1 />', errors: [expectedError] },
{ code: '<h1><Bar aria-hidden /></h1>', errors: [expectedError] },
{ code: '<h1>{undefined}</h1>', errors: [expectedError] },
// CUSTOM ELEMENT TESTS FOR COMPONENTS OPTION
{ code: '<Heading />', errors: [expectedError], options: components },
{ code: '<Heading><Bar aria-hidden /></Heading>', errors: [expectedError], options: components },
{ code: '<Heading>{undefined}</Heading>', errors: [expectedError], options: components },
].map(parserOptionsMapper),
});