axe-core/lib/core/public/cleanup-plugins.js

Accessibility engine for automated Web UI testing

function cleanupPlugins(resolve, reject) {
	'use strict';
	resolve = resolve || function() {};
	reject = reject || axe.log;

	if (!axe._audit) {
		throw new Error('No audit configured');
	}

	var q = axe.utils.queue();
	// If a plugin fails it's cleanup, we still want the others to run
	var cleanupErrors = [];

	Object.keys(axe.plugins).forEach(function(key) {
		q.defer(function(res) {
			var rej = function(err) {
				cleanupErrors.push(err);
				res();
			};
			try {
				axe.plugins[key].cleanup(res, rej);
			} catch (err) {
				rej(err);
			}
		});
	});

	var flattenedTree = axe.utils.getFlattenedTree(document.body);

	axe.utils
		.querySelectorAll(flattenedTree, 'iframe, frame')
		.forEach(function(node) {
			q.defer(function(res, rej) {
				return axe.utils.sendCommandToFrame(
					node.actualNode,
					{
						command: 'cleanup-plugin'
					},
					res,
					rej
				);
			});
		});

	q.then(function(results) {
		if (cleanupErrors.length === 0) {
			resolve(results);
		} else {
			reject(cleanupErrors);
		}
	}).catch(reject);
}
axe.cleanup = cleanupPlugins;