chromium/src/third_party/blink/web_tests/http/tests/devtools/a11y-axe-core/elements/event-listeners-a11y-test.js

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

(async function() {
    // axe-core issue #1444 -- role="tree" requires children with role="treeitem",
    // but it is reasonable to have trees with no leaves.
    const NO_REQUIRED_CHILDREN_RULESET = {
      'aria-required-children': {
        enabled: false,
      },
    };
    const DEFAULT_RULESET = { };

    TestRunner.addResult(
        'Tests accessibility in DOM eventlistener pane using axe-core linter.');

    await TestRunner.loadModule('axe_core_test_runner');
    await TestRunner.loadModule('sources_test_runner');
    const view = 'elements.eventListeners';
    const widget = await UI.viewManager.view(view).widget();
    await UI.viewManager.showView(view);

    const treeElement = widget.element;
    TestRunner.addResult('Running the axe-core linter on tree element.');
    await AxeCoreTestRunner.runValidation(treeElement, NO_REQUIRED_CHILDREN_RULESET);

    const toolbarElement = treeElement.parentElement.querySelector('.toolbar');
    TestRunner.addResult('Running the axe-core linter on toolbar.');
    await AxeCoreTestRunner.runValidation(toolbarElement, DEFAULT_RULESET);

    TestRunner.completeTest();
  })();