| /** |
| * @license |
| * Copyright 2020 Google LLC |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| import './common-test-setup-karma.js'; |
| |
| // Run a11y audit on test fixture |
| // The code is inspired by the |
| // https://github.com/Polymer/web-component-tester/blob/master/data/a11ySuite.js |
| export async function runA11yAudit(fixture, ignoredRules) { |
| fixture.instantiate(); |
| await flush(); |
| const axsConfig = new axs.AuditConfiguration(); |
| axsConfig.scope = document.body; |
| axsConfig.showUnsupportedRulesWarning = false; |
| axsConfig.auditRulesToIgnore = ignoredRules; |
| |
| const auditResults = axs.Audit.run(axsConfig); |
| const errors = []; |
| auditResults.forEach((result, index) => { |
| // only show applicable tests |
| if (result.result === 'FAIL') { |
| const title = result.rule.heading; |
| // fail test if audit result is FAIL |
| const error = axs.Audit.accessibilityErrorMessage(result); |
| errors.push(`${title}: ${error}`); |
| } |
| }); |
| if (errors.length > 0) { |
| assert.fail(errors.join('\n') + '\n'); |
| } |
| } |