node-red-contrib-snap4city-user/lib/js/jquery-simulate-ext-master/tests/qunit.js

Nodes for Snap4city project, targeted to standard user (no developer)

/**
 * QUnit v1.9.0pre - A JavaScript Unit Testing Framework
 *
 * http://docs.jquery.com/QUnit
 *
 * Copyright (c) 2012 John Resig, Jörn Zaefferer
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * or GPL (GPL-LICENSE.txt) licenses.
 * Pulled Live from Git Sun Jul  1 06:30:01 UTC 2012
 * Last Commit: 1ebf587386dbbe259f363baa71eca20165cfed41
 */

(function (window) {

	var QUnit,
		config,
		onErrorFnPrev,
		testId = 0,
		fileName = (sourceFromStacktrace(0) || "").replace(/(:\d+)+\)?/, "").replace(/.+\//, ""),
		toString = Object.prototype.toString,
		hasOwn = Object.prototype.hasOwnProperty,
		defined = {
			setTimeout: typeof window.setTimeout !== "undefined",
			sessionStorage: (function () {
				var x = "qunit-test-string";
				try {
					sessionStorage.setItem(x, x);
					sessionStorage.removeItem(x);
					return true;
				} catch (e) {
					return false;
				}
			}())
		};

	function Test(settings) {
		extend(this, settings);
		this.assertions = [];
		this.testNumber = ++Test.count;
	}

	Test.count = 0;

	Test.prototype = {
		init: function () {
			var a, b, li,
				tests = id("qunit-tests");

			if (tests) {
				b = document.createElement("strong");
				b.innerHTML = this.name;

				// `a` initialized at top of scope
				a = document.createElement("a");
				a.innerHTML = "Rerun";
				a.href = QUnit.url({
					testNumber: this.testNumber
				});

				li = document.createElement("li");
				li.appendChild(b);
				li.appendChild(a);
				li.className = "running";
				li.id = this.id = "qunit-test-output" + testId++;

				tests.appendChild(li);
			}
		},
		setup: function () {
			if (this.module !== config.previousModule) {
				if (config.previousModule) {
					runLoggingCallbacks("moduleDone", QUnit, {
						name: config.previousModule,
						failed: config.moduleStats.bad,
						passed: config.moduleStats.all - config.moduleStats.bad,
						total: config.moduleStats.all
					});
				}
				config.previousModule = this.module;
				config.moduleStats = {
					all: 0,
					bad: 0
				};
				runLoggingCallbacks("moduleStart", QUnit, {
					name: this.module
				});
			} else if (config.autorun) {
				runLoggingCallbacks("moduleStart", QUnit, {
					name: this.module
				});
			}

			config.current = this;

			this.testEnvironment = extend({
				setup: function () {},
				teardown: function () {}
			}, this.moduleTestEnvironment);

			runLoggingCallbacks("testStart", QUnit, {
				name: this.testName,
				module: this.module
			});

			// allow utility functions to access the current test environment
			// TODO why??
			QUnit.current_testEnvironment = this.testEnvironment;

			if (!config.pollution) {
				saveGlobal();
			}
			if (config.notrycatch) {
				this.testEnvironment.setup.call(this.testEnvironment);
				return;
			}
			try {
				this.testEnvironment.setup.call(this.testEnvironment);
			} catch (e) {
				QUnit.pushFailure("Setup failed on " + this.testName + ": " + e.message, extractStacktrace(e, 1));
			}
		},
		run: function () {
			config.current = this;

			var running = id("qunit-testresult");

			if (running) {
				running.innerHTML = "Running: <br/>" + this.name;
			}

			if (this.async) {
				QUnit.stop();
			}

			if (config.notrycatch) {
				this.callback.call(this.testEnvironment, QUnit.assert);
				return;
			}

			try {
				this.callback.call(this.testEnvironment, QUnit.assert);
			} catch (e) {
				QUnit.pushFailure("Died on test #" + (this.assertions.length + 1) + " " + this.stack + ": " + e.message, extractStacktrace(e, 0));
				// else next test will carry the responsibility
				saveGlobal();

				// Restart the tests if they're blocking
				if (config.blocking) {
					QUnit.start();
				}
			}
		},
		teardown: function () {
			config.current = this;
			if (config.notrycatch) {
				this.testEnvironment.teardown.call(this.testEnvironment);
				return;
			} else {
				try {
					this.testEnvironment.teardown.call(this.testEnvironment);
				} catch (e) {
					QUnit.pushFailure("Teardown failed on " + this.testName + ": " + e.message, extractStacktrace(e, 1));
				}
			}
			checkPollution();
		},
		finish: function () {
			config.current = this;
			if (config.requireExpects && this.expected == null) {
				QUnit.pushFailure("Expected number of assertions to be defined, but expect() was not called.", this.stack);
			} else if (this.expected != null && this.expected != this.assertions.length) {
				QUnit.pushFailure("Expected " + this.expected + " assertions, but " + this.assertions.length + " were run", this.stack);
			} else if (this.expected == null && !this.assertions.length) {
				QUnit.pushFailure("Expected at least one assertion, but none were run - call expect(0) to accept zero assertions.", this.stack);
			}

			var assertion, a, b, i, li, ol,
				test = this,
				good = 0,
				bad = 0,
				tests = id("qunit-tests");

			config.stats.all += this.assertions.length;
			config.moduleStats.all += this.assertions.length;

			if (tests) {
				ol = document.createElement("ol");

				for (i = 0; i < this.assertions.length; i++) {
					assertion = this.assertions[i];

					li = document.createElement("li");
					li.className = assertion.result ? "pass" : "fail";
					li.innerHTML = assertion.message || (assertion.result ? "okay" : "failed");
					ol.appendChild(li);

					if (assertion.result) {
						good++;
					} else {
						bad++;
						config.stats.bad++;
						config.moduleStats.bad++;
					}
				}

				// store result when possible
				if (QUnit.config.reorder && defined.sessionStorage) {
					if (bad) {
						sessionStorage.setItem("qunit-test-" + this.module + "-" + this.testName, bad);
					} else {
						sessionStorage.removeItem("qunit-test-" + this.module + "-" + this.testName);
					}
				}

				if (bad === 0) {
					ol.style.display = "none";
				}

				// `b` initialized at top of scope
				b = document.createElement("strong");
				b.innerHTML = this.name + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";

				addEvent(b, "click", function () {
					var next = b.nextSibling.nextSibling,
						display = next.style.display;
					next.style.display = display === "none" ? "block" : "none";
				});

				addEvent(b, "dblclick", function (e) {
					var target = e && e.target ? e.target : window.event.srcElement;
					if (target.nodeName.toLowerCase() == "span" || target.nodeName.toLowerCase() == "b") {
						target = target.parentNode;
					}
					if (window.location && target.nodeName.toLowerCase() === "strong") {
						window.location = QUnit.url({
							testNumber: test.testNumber
						});
					}
				});

				// `li` initialized at top of scope
				li = id(this.id);
				li.className = bad ? "fail" : "pass";
				li.removeChild(li.firstChild);
				a = li.firstChild;
				li.appendChild(b);
				li.appendChild(a);
				li.appendChild(ol);

			} else {
				for (i = 0; i < this.assertions.length; i++) {
					if (!this.assertions[i].result) {
						bad++;
						config.stats.bad++;
						config.moduleStats.bad++;
					}
				}
			}

			runLoggingCallbacks("testDone", QUnit, {
				name: this.testName,
				module: this.module,
				failed: bad,
				passed: this.assertions.length - bad,
				total: this.assertions.length
			});

			QUnit.reset();

			config.current = undefined;
		},

		queue: function () {
			var bad,
				test = this;

			synchronize(function () {
				test.init();
			});

			function run() {
				// each of these can by async
				synchronize(function () {
					test.setup();
				});
				synchronize(function () {
					test.run();
				});
				synchronize(function () {
					test.teardown();
				});
				synchronize(function () {
					test.finish();
				});
			}

			// `bad` initialized at top of scope
			// defer when previous test run passed, if storage is available
			bad = QUnit.config.reorder && defined.sessionStorage &&
				+sessionStorage.getItem("qunit-test-" + this.module + "-" + this.testName);

			if (bad) {
				run();
			} else {
				synchronize(run, true);
			}
		}
	};

	// Root QUnit object.
	// `QUnit` initialized at top of scope
	QUnit = {

		// call on start of module test to prepend name to all tests
		module: function (name, testEnvironment) {
			config.currentModule = name;
			config.currentModuleTestEnviroment = testEnvironment;
		},

		asyncTest: function (testName, expected, callback) {
			if (arguments.length === 2) {
				callback = expected;
				expected = null;
			}

			QUnit.test(testName, expected, callback, true);
		},

		test: function (testName, expected, callback, async) {
			var test,
				name = "<span class='test-name'>" + escapeInnerText(testName) + "</span>";

			if (arguments.length === 2) {
				callback = expected;
				expected = null;
			}

			if (config.currentModule) {
				name = "<span class='module-name'>" + config.currentModule + "</span>: " + name;
			}

			test = new Test({
				name: name,
				testName: testName,
				expected: expected,
				async: async,
				callback: callback,
				module: config.currentModule,
				moduleTestEnvironment: config.currentModuleTestEnviroment,
				stack: sourceFromStacktrace(2)
			});

			if (!validTest(test)) {
				return;
			}

			test.queue();
		},

		// Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
		expect: function (asserts) {
			config.current.expected = asserts;
		},

		start: function (count) {
			config.semaphore -= count || 1;
			// don't start until equal number of stop-calls
			if (config.semaphore > 0) {
				return;
			}
			// ignore if start is called more often then stop
			if (config.semaphore < 0) {
				config.semaphore = 0;
			}
			// A slight delay, to avoid any current callbacks
			if (defined.setTimeout) {
				window.setTimeout(function () {
					if (config.semaphore > 0) {
						return;
					}
					if (config.timeout) {
						clearTimeout(config.timeout);
					}

					config.blocking = false;
					process(true);
				}, 13);
			} else {
				config.blocking = false;
				process(true);
			}
		},

		stop: function (count) {
			config.semaphore += count || 1;
			config.blocking = true;

			if (config.testTimeout && defined.setTimeout) {
				clearTimeout(config.timeout);
				config.timeout = window.setTimeout(function () {
					QUnit.ok(false, "Test timed out");
					config.semaphore = 1;
					QUnit.start();
				}, config.testTimeout);
			}
		}
	};

	// Asssert helpers
	// All of these must call either QUnit.push() or manually do:
	// - runLoggingCallbacks( "log", .. );
	// - config.current.assertions.push({ .. });
	QUnit.assert = {
		/**
		 * Asserts rough true-ish result.
		 * @name ok
		 * @function
		 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
		 */
		ok: function (result, msg) {
			if (!config.current) {
				throw new Error("ok() assertion outside test context, was " + sourceFromStacktrace(2));
			}
			result = !!result;

			var source,
				details = {
					result: result,
					message: msg
				};

			msg = escapeInnerText(msg || (result ? "okay" : "failed"));
			msg = "<span class='test-message'>" + msg + "</span>";

			if (!result) {
				source = sourceFromStacktrace(2);
				if (source) {
					details.source = source;
					msg += "<table><tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText(source) + "</pre></td></tr></table>";
				}
			}
			runLoggingCallbacks("log", QUnit, details);
			config.current.assertions.push({
				result: result,
				message: msg
			});
		},

		/**
		 * Assert that the first two arguments are equal, with an optional message.
		 * Prints out both actual and expected values.
		 * @name equal
		 * @function
		 * @example equal( format( "Received {0} bytes.", 2), "Received 2 bytes.", "format() replaces {0} with next argument" );
		 */
		equal: function (actual, expected, message) {
			QUnit.push(expected == actual, actual, expected, message);
		},

		/**
		 * @name notEqual
		 * @function
		 */
		notEqual: function (actual, expected, message) {
			QUnit.push(expected != actual, actual, expected, message);
		},

		/**
		 * @name deepEqual
		 * @function
		 */
		deepEqual: function (actual, expected, message) {
			QUnit.push(QUnit.equiv(actual, expected), actual, expected, message);
		},

		/**
		 * @name notDeepEqual
		 * @function
		 */
		notDeepEqual: function (actual, expected, message) {
			QUnit.push(!QUnit.equiv(actual, expected), actual, expected, message);
		},

		/**
		 * @name strictEqual
		 * @function
		 */
		strictEqual: function (actual, expected, message) {
			QUnit.push(expected === actual, actual, expected, message);
		},

		/**
		 * @name notStrictEqual
		 * @function
		 */
		notStrictEqual: function (actual, expected, message) {
			QUnit.push(expected !== actual, actual, expected, message);
		},

		throws: function (block, expected, message) {
			var actual,
				ok = false;

			// 'expected' is optional
			if (typeof expected === "string") {
				message = expected;
				expected = null;
			}

			config.current.ignoreGlobalErrors = true;
			try {
				block.call(config.current.testEnvironment);
			} catch (e) {
				actual = e;
			}
			config.current.ignoreGlobalErrors = false;

			if (actual) {
				// we don't want to validate thrown error
				if (!expected) {
					ok = true;
					// expected is a regexp
				} else if (QUnit.objectType(expected) === "regexp") {
					ok = expected.test(actual);
					// expected is a constructor
				} else if (actual instanceof expected) {
					ok = true;
					// expected is a validation function which returns true is validation passed
				} else if (expected.call({}, actual) === true) {
					ok = true;
				}

				QUnit.push(ok, actual, null, message);
			} else {
				QUnit.pushFailure(message, null, 'No exception was thrown.');
			}
		}
	};

	/**
	 * @deprecate since 1.8.0
	 * Kept assertion helpers in root for backwards compatibility
	 */
	extend(QUnit, QUnit.assert);

	/**
	 * @deprecated since 1.9.0
	 * Kept global "raises()" for backwards compatibility
	 */
	QUnit.raises = QUnit.assert.throws;

	/**
	 * @deprecated since 1.0.0, replaced with error pushes since 1.3.0
	 * Kept to avoid TypeErrors for undefined methods.
	 */
	QUnit.equals = function () {
		QUnit.push(false, false, false, "QUnit.equals has been deprecated since 2009 (e88049a0), use QUnit.equal instead");
	};
	QUnit.same = function () {
		QUnit.push(false, false, false, "QUnit.same has been deprecated since 2009 (e88049a0), use QUnit.deepEqual instead");
	};

	// We want access to the constructor's prototype
	(function () {
		function F() {}
		F.prototype = QUnit;
		QUnit = new F();
		// Make F QUnit's constructor so that we can add to the prototype later
		QUnit.constructor = F;
	}());

	/**
	 * Config object: Maintain internal state
	 * Later exposed as QUnit.config
	 * `config` initialized at top of scope
	 */
	config = {
		// The queue of tests to run
		queue: [],

		// block until document ready
		blocking: true,

		// when enabled, show only failing tests
		// gets persisted through sessionStorage and can be changed in UI via checkbox
		hidepassed: false,

		// by default, run previously failed tests first
		// very useful in combination with "Hide passed tests" checked
		reorder: true,

		// by default, modify document.title when suite is done
		altertitle: true,

		// when enabled, all tests must call expect()
		requireExpects: false,

		// add checkboxes that are persisted in the query-string
		// when enabled, the id is set to `true` as a `QUnit.config` property
		urlConfig: [{
				id: "noglobals",
				label: "Check for Globals",
				tooltip: "Enabling this will test if any test introduces new properties on the `window` object. Stored as query-strings."
			},
			{
				id: "notrycatch",
				label: "No try-catch",
				tooltip: "Enabling this will run tests outside of a try-catch block. Makes debugging exceptions in IE reasonable. Stored as query-strings."
			}
		],

		// logging callback queues
		begin: [],
		done: [],
		log: [],
		testStart: [],
		testDone: [],
		moduleStart: [],
		moduleDone: []
	};

	// Initialize more QUnit.config and QUnit.urlParams
	(function () {
		var i,
			location = window.location || {
				search: "",
				protocol: "file:"
			},
			params = location.search.slice(1).split("&"),
			length = params.length,
			urlParams = {},
			current;

		if (params[0]) {
			for (i = 0; i < length; i++) {
				current = params[i].split("=");
				current[0] = decodeURIComponent(current[0]);
				// allow just a key to turn on a flag, e.g., test.html?noglobals
				current[1] = current[1] ? decodeURIComponent(current[1]) : true;
				urlParams[current[0]] = current[1];
			}
		}

		QUnit.urlParams = urlParams;

		// String search anywhere in moduleName+testName
		config.filter = urlParams.filter;

		// Exact match of the module name
		config.module = urlParams.module;

		config.testNumber = parseInt(urlParams.testNumber, 10) || null;

		// Figure out if we're running the tests from a server or not
		QUnit.isLocal = location.protocol === "file:";
	}());

	// Export global variables, unless an 'exports' object exists,
	// in that case we assume we're in CommonJS (dealt with on the bottom of the script)
	if (typeof exports === "undefined") {
		extend(window, QUnit);

		// Expose QUnit object
		window.QUnit = QUnit;
	}

	// Extend QUnit object,
	// these after set here because they should not be exposed as global functions
	extend(QUnit, {
		config: config,

		// Initialize the configuration options
		init: function () {
			extend(config, {
				stats: {
					all: 0,
					bad: 0
				},
				moduleStats: {
					all: 0,
					bad: 0
				},
				started: +new Date(),
				updateRate: 1000,
				blocking: false,
				autostart: true,
				autorun: false,
				filter: "",
				queue: [],
				semaphore: 0
			});

			var tests, banner, result,
				qunit = id("qunit");

			if (qunit) {
				qunit.innerHTML =
					"<h1 id='qunit-header'>" + escapeInnerText(document.title) + "</h1>" +
					"<h2 id='qunit-banner'></h2>" +
					"<div id='qunit-testrunner-toolbar'></div>" +
					"<h2 id='qunit-userAgent'></h2>" +
					"<ol id='qunit-tests'></ol>";
			}

			tests = id("qunit-tests");
			banner = id("qunit-banner");
			result = id("qunit-testresult");

			if (tests) {
				tests.innerHTML = "";
			}

			if (banner) {
				banner.className = "";
			}

			if (result) {
				result.parentNode.removeChild(result);
			}

			if (tests) {
				result = document.createElement("p");
				result.id = "qunit-testresult";
				result.className = "result";
				tests.parentNode.insertBefore(result, tests);
				result.innerHTML = "Running...<br/>&nbsp;";
			}
		},

		// Resets the test setup. Useful for tests that modify the DOM.
		// If jQuery is available, uses jQuery's html(), otherwise just innerHTML.
		reset: function () {
			var fixture;

			if (window.jQuery) {
				jQuery("#qunit-fixture").html(config.fixture);
			} else {
				fixture = id("qunit-fixture");
				if (fixture) {
					fixture.innerHTML = config.fixture;
				}
			}
		},

		// Trigger an event on an element.
		// @example triggerEvent( document.body, "click" );
		triggerEvent: function (elem, type, event) {
			if (document.createEvent) {
				event = document.createEvent("MouseEvents");
				event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
					0, 0, 0, 0, 0, false, false, false, false, 0, null);

				elem.dispatchEvent(event);
			} else if (elem.fireEvent) {
				elem.fireEvent("on" + type);
			}
		},

		// Safe object type checking
		is: function (type, obj) {
			return QUnit.objectType(obj) == type;
		},

		objectType: function (obj) {
			if (typeof obj === "undefined") {
				return "undefined";
				// consider: typeof null === object
			}
			if (obj === null) {
				return "null";
			}

			var type = toString.call(obj).match(/^\[object\s(.*)\]$/)[1] || "";

			switch (type) {
				case "Number":
					if (isNaN(obj)) {
						return "nan";
					}
					return "number";
				case "String":
				case "Boolean":
				case "Array":
				case "Date":
				case "RegExp":
				case "Function":
					return type.toLowerCase();
			}
			if (typeof obj === "object") {
				return "object";
			}
			return undefined;
		},

		push: function (result, actual, expected, message) {
			if (!config.current) {
				throw new Error("assertion outside test context, was " + sourceFromStacktrace());
			}

			var output, source,
				details = {
					result: result,
					message: message,
					actual: actual,
					expected: expected
				};

			message = escapeInnerText(message) || (result ? "okay" : "failed");
			message = "<span class='test-message'>" + message + "</span>";
			output = message;

			if (!result) {
				expected = escapeInnerText(QUnit.jsDump.parse(expected));
				actual = escapeInnerText(QUnit.jsDump.parse(actual));
				output += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" + expected + "</pre></td></tr>";

				if (actual != expected) {
					output += "<tr class='test-actual'><th>Result: </th><td><pre>" + actual + "</pre></td></tr>";
					output += "<tr class='test-diff'><th>Diff: </th><td><pre>" + QUnit.diff(expected, actual) + "</pre></td></tr>";
				}

				source = sourceFromStacktrace();

				if (source) {
					details.source = source;
					output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText(source) + "</pre></td></tr>";
				}

				output += "</table>";
			}

			runLoggingCallbacks("log", QUnit, details);

			config.current.assertions.push({
				result: !!result,
				message: output
			});
		},

		pushFailure: function (message, source, actual) {
			if (!config.current) {
				throw new Error("pushFailure() assertion outside test context, was " + sourceFromStacktrace(2));
			}

			var output,
				details = {
					result: false,
					message: message
				};

			message = escapeInnerText(message) || "error";
			message = "<span class='test-message'>" + message + "</span>";
			output = message;

			output += "<table>";

			if (actual) {
				output += "<tr class='test-actual'><th>Result: </th><td><pre>" + escapeInnerText(actual) + "</pre></td></tr>";
			}

			if (source) {
				details.source = source;
				output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText(source) + "</pre></td></tr>";
			}

			output += "</table>";

			runLoggingCallbacks("log", QUnit, details);

			config.current.assertions.push({
				result: false,
				message: output
			});
		},

		url: function (params) {
			params = extend(extend({}, QUnit.urlParams), params);
			var key,
				querystring = "?";

			for (key in params) {
				if (!hasOwn.call(params, key)) {
					continue;
				}
				querystring += encodeURIComponent(key) + "=" +
					encodeURIComponent(params[key]) + "&";
			}
			return window.location.pathname + querystring.slice(0, -1);
		},

		extend: extend,
		id: id,
		addEvent: addEvent
		// load, equiv, jsDump, diff: Attached later
	});

	/**
	 * @deprecated: Created for backwards compatibility with test runner that set the hook function
	 * into QUnit.{hook}, instead of invoking it and passing the hook function.
	 * QUnit.constructor is set to the empty F() above so that we can add to it's prototype here.
	 * Doing this allows us to tell if the following methods have been overwritten on the actual
	 * QUnit object.
	 */
	extend(QUnit.constructor.prototype, {

		// Logging callbacks; all receive a single argument with the listed properties
		// run test/logs.html for any related changes
		begin: registerLoggingCallback("begin"),

		// done: { failed, passed, total, runtime }
		done: registerLoggingCallback("done"),

		// log: { result, actual, expected, message }
		log: registerLoggingCallback("log"),

		// testStart: { name }
		testStart: registerLoggingCallback("testStart"),

		// testDone: { name, failed, passed, total }
		testDone: registerLoggingCallback("testDone"),

		// moduleStart: { name }
		moduleStart: registerLoggingCallback("moduleStart"),

		// moduleDone: { name, failed, passed, total }
		moduleDone: registerLoggingCallback("moduleDone")
	});

	if (typeof document === "undefined" || document.readyState === "complete") {
		config.autorun = true;
	}

	QUnit.load = function () {
		runLoggingCallbacks("begin", QUnit, {});

		// Initialize the config, saving the execution queue
		var banner, filter, i, label, len, main, ol, toolbar, userAgent, val, urlConfigCheckboxes,
			urlConfigHtml = "",
			oldconfig = extend({}, config);

		QUnit.init();
		extend(config, oldconfig);

		config.blocking = false;

		len = config.urlConfig.length;

		for (i = 0; i < len; i++) {
			val = config.urlConfig[i];
			if (typeof val === "string") {
				val = {
					id: val,
					label: val,
					tooltip: "[no tooltip available]"
				};
			}
			config[val.id] = QUnit.urlParams[val.id];
			urlConfigHtml += "<input id='qunit-urlconfig-" + val.id + "' name='" + val.id + "' type='checkbox'" + (config[val.id] ? " checked='checked'" : "") + " title='" + val.tooltip + "'><label for='qunit-urlconfig-" + val.id + "' title='" + val.tooltip + "'>" + val.label + "</label>";
		}

		// `userAgent` initialized at top of scope
		userAgent = id("qunit-userAgent");
		if (userAgent) {
			userAgent.innerHTML = navigator.userAgent;
		}

		// `banner` initialized at top of scope
		banner = id("qunit-header");
		if (banner) {
			banner.innerHTML = "<a href='" + QUnit.url({
				filter: undefined,
				module: undefined,
				testNumber: undefined
			}) + "'>" + banner.innerHTML + "</a> ";
		}

		// `toolbar` initialized at top of scope
		toolbar = id("qunit-testrunner-toolbar");
		if (toolbar) {
			// `filter` initialized at top of scope
			filter = document.createElement("input");
			filter.type = "checkbox";
			filter.id = "qunit-filter-pass";

			addEvent(filter, "click", function () {
				var tmp,
					ol = document.getElementById("qunit-tests");

				if (filter.checked) {
					ol.className = ol.className + " hidepass";
				} else {
					tmp = " " + ol.className.replace(/[\n\t\r]/g, " ") + " ";
					ol.className = tmp.replace(/ hidepass /, " ");
				}
				if (defined.sessionStorage) {
					if (filter.checked) {
						sessionStorage.setItem("qunit-filter-passed-tests", "true");
					} else {
						sessionStorage.removeItem("qunit-filter-passed-tests");
					}
				}
			});

			if (config.hidepassed || defined.sessionStorage && sessionStorage.getItem("qunit-filter-passed-tests")) {
				filter.checked = true;
				// `ol` initialized at top of scope
				ol = document.getElementById("qunit-tests");
				ol.className = ol.className + " hidepass";
			}
			toolbar.appendChild(filter);

			// `label` initialized at top of scope
			label = document.createElement("label");
			label.setAttribute("for", "qunit-filter-pass");
			label.setAttribute("title", "Only show tests and assertons that fail. Stored in sessionStorage.");
			label.innerHTML = "Hide passed tests";
			toolbar.appendChild(label);

			urlConfigCheckboxes = document.createElement('span');
			urlConfigCheckboxes.innerHTML = urlConfigHtml;
			addEvent(urlConfigCheckboxes, "change", function (event) {
				var params = {};
				params[event.target.name] = event.target.checked ? true : undefined;
				window.location = QUnit.url(params);
			});
			toolbar.appendChild(urlConfigCheckboxes);
		}

		// `main` initialized at top of scope
		main = id("qunit-fixture");
		if (main) {
			config.fixture = main.innerHTML;
		}

		if (config.autostart) {
			QUnit.start();
		}
	};

	addEvent(window, "load", QUnit.load);

	// `onErrorFnPrev` initialized at top of scope
	// Preserve other handlers
	onErrorFnPrev = window.onerror;

	// Cover uncaught exceptions
	// Returning true will surpress the default browser handler,
	// returning false will let it run.
	window.onerror = function (error, filePath, linerNr) {
		var ret = false;
		if (onErrorFnPrev) {
			ret = onErrorFnPrev(error, filePath, linerNr);
		}

		// Treat return value as window.onerror itself does,
		// Only do our handling if not surpressed.
		if (ret !== true) {
			if (QUnit.config.current) {
				if (QUnit.config.current.ignoreGlobalErrors) {
					return true;
				}
				QUnit.pushFailure(error, filePath + ":" + linerNr);
			} else {
				QUnit.test("global failure", function () {
					QUnit.pushFailure(error, filePath + ":" + linerNr);
				});
			}
			return false;
		}

		return ret;
	};

	function done() {
		config.autorun = true;

		// Log the last module results
		if (config.currentModule) {
			runLoggingCallbacks("moduleDone", QUnit, {
				name: config.currentModule,
				failed: config.moduleStats.bad,
				passed: config.moduleStats.all - config.moduleStats.bad,
				total: config.moduleStats.all
			});
		}

		var i, key,
			banner = id("qunit-banner"),
			tests = id("qunit-tests"),
			runtime = +new Date() - config.started,
			passed = config.stats.all - config.stats.bad,
			html = [
				"Tests completed in ",
				runtime,
				" milliseconds.<br/>",
				"<span class='passed'>",
				passed,
				"</span> tests of <span class='total'>",
				config.stats.all,
				"</span> passed, <span class='failed'>",
				config.stats.bad,
				"</span> failed."
			].join("");

		if (banner) {
			banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
		}

		if (tests) {
			id("qunit-testresult").innerHTML = html;
		}

		if (config.altertitle && typeof document !== "undefined" && document.title) {
			// show ✖ for good, ✔ for bad suite result in title
			// use escape sequences in case file gets loaded with non-utf-8-charset
			document.title = [
				(config.stats.bad ? "\u2716" : "\u2714"),
				document.title.replace(/^[\u2714\u2716] /i, "")
			].join(" ");
		}

		// clear own sessionStorage items if all tests passed
		if (config.reorder && defined.sessionStorage && config.stats.bad === 0) {
			// `key` & `i` initialized at top of scope
			for (i = 0; i < sessionStorage.length; i++) {
				key = sessionStorage.key(i++);
				if (key.indexOf("qunit-test-") === 0) {
					sessionStorage.removeItem(key);
				}
			}
		}

		runLoggingCallbacks("done", QUnit, {
			failed: config.stats.bad,
			passed: passed,
			total: config.stats.all,
			runtime: runtime
		});
	}

	/** @return Boolean: true if this test should be ran */
	function validTest(test) {
		var include,
			filter = config.filter && config.filter.toLowerCase(),
			module = config.module && config.module.toLowerCase(),
			fullName = (test.module + ": " + test.testName).toLowerCase();

		if (config.testNumber) {
			return test.testNumber === config.testNumber;
		}

		if (module && (!test.module || test.module.toLowerCase() !== module)) {
			return false;
		}

		if (!filter) {
			return true;
		}

		include = filter.charAt(0) !== "!";
		if (!include) {
			filter = filter.slice(1);
		}

		// If the filter matches, we need to honour include
		if (fullName.indexOf(filter) !== -1) {
			return include;
		}

		// Otherwise, do the opposite
		return !include;
	}

	// so far supports only Firefox, Chrome and Opera (buggy), Safari (for real exceptions)
	// Later Safari and IE10 are supposed to support error.stack as well
	// See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
	function extractStacktrace(e, offset) {
		offset = offset === undefined ? 3 : offset;

		var stack, include, i, regex;

		if (e.stacktrace) {
			// Opera
			return e.stacktrace.split("\n")[offset + 3];
		} else if (e.stack) {
			// Firefox, Chrome
			stack = e.stack.split("\n");
			if (/^error$/i.test(stack[0])) {
				stack.shift();
			}
			if (fileName) {
				include = [];
				for (i = offset; i < stack.length; i++) {
					if (stack[i].indexOf(fileName) != -1) {
						break;
					}
					include.push(stack[i]);
				}
				if (include.length) {
					return include.join("\n");
				}
			}
			return stack[offset];
		} else if (e.sourceURL) {
			// Safari, PhantomJS
			// hopefully one day Safari provides actual stacktraces
			// exclude useless self-reference for generated Error objects
			if (/qunit.js$/.test(e.sourceURL)) {
				return;
			}
			// for actual exceptions, this is useful
			return e.sourceURL + ":" + e.line;
		}
	}

	function sourceFromStacktrace(offset) {
		try {
			throw new Error();
		} catch (e) {
			return extractStacktrace(e, offset);
		}
	}

	function escapeInnerText(s) {
		if (!s) {
			return "";
		}
		s = s + "";
		return s.replace(/[\&<>]/g, function (s) {
			switch (s) {
				case "&":
					return "&amp;";
				case "<":
					return "&lt;";
				case ">":
					return "&gt;";
				default:
					return s;
			}
		});
	}

	function synchronize(callback, last) {
		config.queue.push(callback);

		if (config.autorun && !config.blocking) {
			process(last);
		}
	}

	function process(last) {
		function next() {
			process(last);
		}
		var start = new Date().getTime();
		config.depth = config.depth ? config.depth + 1 : 1;

		while (config.queue.length && !config.blocking) {
			if (!defined.setTimeout || config.updateRate <= 0 || ((new Date().getTime() - start) < config.updateRate)) {
				config.queue.shift()();
			} else {
				window.setTimeout(next, 13);
				break;
			}
		}
		config.depth--;
		if (last && !config.blocking && !config.queue.length && config.depth === 0) {
			done();
		}
	}

	function saveGlobal() {
		config.pollution = [];

		if (config.noglobals) {
			for (var key in window) {
				// in Opera sometimes DOM element ids show up here, ignore them
				if (!hasOwn.call(window, key) || /^qunit-test-output/.test(key)) {
					continue;
				}
				config.pollution.push(key);
			}
		}
	}

	function checkPollution(name) {
		var newGlobals,
			deletedGlobals,
			old = config.pollution;

		saveGlobal();

		newGlobals = diff(config.pollution, old);
		if (newGlobals.length > 0) {
			QUnit.pushFailure("Introduced global variable(s): " + newGlobals.join(", "));
		}

		deletedGlobals = diff(old, config.pollution);
		if (deletedGlobals.length > 0) {
			QUnit.pushFailure("Deleted global variable(s): " + deletedGlobals.join(", "));
		}
	}

	// returns a new Array with the elements that are in a but not in b
	function diff(a, b) {
		var i, j,
			result = a.slice();

		for (i = 0; i < result.length; i++) {
			for (j = 0; j < b.length; j++) {
				if (result[i] === b[j]) {
					result.splice(i, 1);
					i--;
					break;
				}
			}
		}
		return result;
	}

	function extend(a, b) {
		for (var prop in b) {
			if (b[prop] === undefined) {
				delete a[prop];

				// Avoid "Member not found" error in IE8 caused by setting window.constructor
			} else if (prop !== "constructor" || a !== window) {
				a[prop] = b[prop];
			}
		}

		return a;
	}

	function addEvent(elem, type, fn) {
		if (elem.addEventListener) {
			elem.addEventListener(type, fn, false);
		} else if (elem.attachEvent) {
			elem.attachEvent("on" + type, fn);
		} else {
			fn();
		}
	}

	function id(name) {
		return !!(typeof document !== "undefined" && document && document.getElementById) &&
			document.getElementById(name);
	}

	function registerLoggingCallback(key) {
		return function (callback) {
			config[key].push(callback);
		};
	}

	// Supports deprecated method of completely overwriting logging callbacks
	function runLoggingCallbacks(key, scope, args) {
		//debugger;
		var i, callbacks;
		if (QUnit.hasOwnProperty(key)) {
			QUnit[key].call(scope, args);
		} else {
			callbacks = config[key];
			for (i = 0; i < callbacks.length; i++) {
				callbacks[i].call(scope, args);
			}
		}
	}

	// Test for equality any JavaScript type.
	// Author: Philippe Rathé <prathe@gmail.com>
	QUnit.equiv = (function () {

		// Call the o related callback with the given arguments.
		function bindCallbacks(o, callbacks, args) {
			var prop = QUnit.objectType(o);
			if (prop) {
				if (QUnit.objectType(callbacks[prop]) === "function") {
					return callbacks[prop].apply(callbacks, args);
				} else {
					return callbacks[prop]; // or undefined
				}
			}
		}

		// the real equiv function
		var innerEquiv,
			// stack to decide between skip/abort functions
			callers = [],
			// stack to avoiding loops from circular referencing
			parents = [],

			getProto = Object.getPrototypeOf || function (obj) {
				return obj.__proto__;
			},
			callbacks = (function () {

				// for string, boolean, number and null
				function useStrictEquality(b, a) {
					if (b instanceof a.constructor || a instanceof b.constructor) {
						// to catch short annotaion VS 'new' annotation of a
						// declaration
						// e.g. var i = 1;
						// var j = new Number(1);
						return a == b;
					} else {
						return a === b;
					}
				}

				return {
					"string": useStrictEquality,
					"boolean": useStrictEquality,
					"number": useStrictEquality,
					"null": useStrictEquality,
					"undefined": useStrictEquality,

					"nan": function (b) {
						return isNaN(b);
					},

					"date": function (b, a) {
						return QUnit.objectType(b) === "date" && a.valueOf() === b.valueOf();
					},

					"regexp": function (b, a) {
						return QUnit.objectType(b) === "regexp" &&
							// the regex itself
							a.source === b.source &&
							// and its modifers
							a.global === b.global &&
							// (gmi) ...
							a.ignoreCase === b.ignoreCase &&
							a.multiline === b.multiline;
					},

					// - skip when the property is a method of an instance (OOP)
					// - abort otherwise,
					// initial === would have catch identical references anyway
					"function": function () {
						var caller = callers[callers.length - 1];
						return caller !== Object && typeof caller !== "undefined";
					},

					"array": function (b, a) {
						var i, j, len, loop;

						// b could be an object literal here
						if (QUnit.objectType(b) !== "array") {
							return false;
						}

						len = a.length;
						if (len !== b.length) {
							// safe and faster
							return false;
						}

						// track reference to avoid circular references
						parents.push(a);
						for (i = 0; i < len; i++) {
							loop = false;
							for (j = 0; j < parents.length; j++) {
								if (parents[j] === a[i]) {
									loop = true; // dont rewalk array
								}
							}
							if (!loop && !innerEquiv(a[i], b[i])) {
								parents.pop();
								return false;
							}
						}
						parents.pop();
						return true;
					},

					"object": function (b, a) {
						var i, j, loop,
							// Default to true
							eq = true,
							aProperties = [],
							bProperties = [];

						// comparing constructors is more strict than using
						// instanceof
						if (a.constructor !== b.constructor) {
							// Allow objects with no prototype to be equivalent to
							// objects with Object as their constructor.
							if (!((getProto(a) === null && getProto(b) === Object.prototype) ||
									(getProto(b) === null && getProto(a) === Object.prototype))) {
								return false;
							}
						}

						// stack constructor before traversing properties
						callers.push(a.constructor);
						// track reference to avoid circular references
						parents.push(a);

						for (i in a) { // be strict: don't ensures hasOwnProperty
							// and go deep
							loop = false;
							for (j = 0; j < parents.length; j++) {
								if (parents[j] === a[i]) {
									// don't go down the same path twice
									loop = true;
								}
							}
							aProperties.push(i); // collect a's properties

							if (!loop && !innerEquiv(a[i], b[i])) {
								eq = false;
								break;
							}
						}

						callers.pop(); // unstack, we are done
						parents.pop();

						for (i in b) {
							bProperties.push(i); // collect b's properties
						}

						// Ensures identical properties name
						return eq && innerEquiv(aProperties.sort(), bProperties.sort());
					}
				};
			}());

		innerEquiv = function () { // can take multiple arguments
			var args = [].slice.apply(arguments);
			if (args.length < 2) {
				return true; // end transition
			}

			return (function (a, b) {
				if (a === b) {
					return true; // catch the most you can
				} else if (a === null || b === null || typeof a === "undefined" ||
					typeof b === "undefined" ||
					QUnit.objectType(a) !== QUnit.objectType(b)) {
					return false; // don't lose time with error prone cases
				} else {
					return bindCallbacks(a, callbacks, [b, a]);
				}

				// apply transition with (1..n) arguments
			}(args[0], args[1]) && arguments.callee.apply(this, args.splice(1, args.length - 1)));
		};

		return innerEquiv;
	}());

	/**
	 * jsDump Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com |
	 * http://flesler.blogspot.com Licensed under BSD
	 * (http://www.opensource.org/licenses/bsd-license.php) Date: 5/15/2008
	 *
	 * @projectDescription Advanced and extensible data dumping for Javascript.
	 * @version 1.0.0
	 * @author Ariel Flesler
	 * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
	 */
	QUnit.jsDump = (function () {
		function quote(str) {
			return '"' + str.toString().replace(/"/g, '\\"') + '"';
		}

		function literal(o) {
			return o + "";
		}

		function join(pre, arr, post) {
			var s = jsDump.separator(),
				base = jsDump.indent(),
				inner = jsDump.indent(1);
			if (arr.join) {
				arr = arr.join("," + s + inner);
			}
			if (!arr) {
				return pre + post;
			}
			return [pre, inner + arr, base + post].join(s);
		}

		function array(arr, stack) {
			var i = arr.length,
				ret = new Array(i);
			this.up();
			while (i--) {
				ret[i] = this.parse(arr[i], undefined, stack);
			}
			this.down();
			return join("[", ret, "]");
		}

		var reName = /^function (\w+)/,
			jsDump = {
				parse: function (obj, type, stack) { //type is used mostly internally, you can fix a (custom)type in advance
					stack = stack || [];
					var inStack, res,
						parser = this.parsers[type || this.typeOf(obj)];

					type = typeof parser;
					inStack = inArray(obj, stack);

					if (inStack != -1) {
						return "recursion(" + (inStack - stack.length) + ")";
					}
					//else
					if (type == "function") {
						stack.push(obj);
						res = parser.call(this, obj, stack);
						stack.pop();
						return res;
					}
					// else
					return (type == "string") ? parser : this.parsers.error;
				},
				typeOf: function (obj) {
					var type;
					if (obj === null) {
						type = "null";
					} else if (typeof obj === "undefined") {
						type = "undefined";
					} else if (QUnit.is("regexp", obj)) {
						type = "regexp";
					} else if (QUnit.is("date", obj)) {
						type = "date";
					} else if (QUnit.is("function", obj)) {
						type = "function";
					} else if (typeof obj.setInterval !== undefined && typeof obj.document !== "undefined" && typeof obj.nodeType === "undefined") {
						type = "window";
					} else if (obj.nodeType === 9) {
						type = "document";
					} else if (obj.nodeType) {
						type = "node";
					} else if (
						// native arrays
						toString.call(obj) === "[object Array]" ||
						// NodeList objects
						(typeof obj.length === "number" && typeof obj.item !== "undefined" && (obj.length ? obj.item(0) === obj[0] : (obj.item(0) === null && typeof obj[0] === "undefined")))
					) {
						type = "array";
					} else {
						type = typeof obj;
					}
					return type;
				},
				separator: function () {
					return this.multiline ? this.HTML ? "<br />" : "\n" : this.HTML ? "&nbsp;" : " ";
				},
				indent: function (extra) { // extra can be a number, shortcut for increasing-calling-decreasing
					if (!this.multiline) {
						return "";
					}
					var chr = this.indentChar;
					if (this.HTML) {
						chr = chr.replace(/\t/g, "   ").replace(/ /g, "&nbsp;");
					}
					return new Array(this._depth_ + (extra || 0)).join(chr);
				},
				up: function (a) {
					this._depth_ += a || 1;
				},
				down: function (a) {
					this._depth_ -= a || 1;
				},
				setParser: function (name, parser) {
					this.parsers[name] = parser;
				},
				// The next 3 are exposed so you can use them
				quote: quote,
				literal: literal,
				join: join,
				//
				_depth_: 1,
				// This is the list of parsers, to modify them, use jsDump.setParser
				parsers: {
					window: "[Window]",
					document: "[Document]",
					error: "[ERROR]", //when no parser is found, shouldn"t happen
					unknown: "[Unknown]",
					"null": "null",
					"undefined": "undefined",
					"function": function (fn) {
						var ret = "function",
							name = "name" in fn ? fn.name : (reName.exec(fn) || [])[1]; //functions never have name in IE

						if (name) {
							ret += " " + name;
						}
						ret += "( ";

						ret = [ret, QUnit.jsDump.parse(fn, "functionArgs"), "){"].join("");
						return join(ret, QUnit.jsDump.parse(fn, "functionCode"), "}");
					},
					array: array,
					nodelist: array,
					"arguments": array,
					object: function (map, stack) {
						var ret = [],
							keys, key, val, i;
						QUnit.jsDump.up();
						if (Object.keys) {
							keys = Object.keys(map);
						} else {
							keys = [];
							for (key in map) {
								keys.push(key);
							}
						}
						keys.sort();
						for (i = 0; i < keys.length; i++) {
							key = keys[i];
							val = map[key];
							ret.push(QUnit.jsDump.parse(key, "key") + ": " + QUnit.jsDump.parse(val, undefined, stack));
						}
						QUnit.jsDump.down();
						return join("{", ret, "}");
					},
					node: function (node) {
						var a, val,
							open = QUnit.jsDump.HTML ? "&lt;" : "<",
							close = QUnit.jsDump.HTML ? "&gt;" : ">",
							tag = node.nodeName.toLowerCase(),
							ret = open + tag;

						for (a in QUnit.jsDump.DOMAttrs) {
							val = node[QUnit.jsDump.DOMAttrs[a]];
							if (val) {
								ret += " " + a + "=" + QUnit.jsDump.parse(val, "attribute");
							}
						}
						return ret + close + open + "/" + tag + close;
					},
					functionArgs: function (fn) { //function calls it internally, it's the arguments part of the function
						var args,
							l = fn.length;

						if (!l) {
							return "";
						}

						args = new Array(l);
						while (l--) {
							args[l] = String.fromCharCode(97 + l); //97 is 'a'
						}
						return " " + args.join(", ") + " ";
					},
					key: quote, //object calls it internally, the key part of an item in a map
					functionCode: "[code]", //function calls it internally, it's the content of the function
					attribute: quote, //node calls it internally, it's an html attribute value
					string: quote,
					date: quote,
					regexp: literal, //regex
					number: literal,
					"boolean": literal
				},
				DOMAttrs: {
					//attributes to dump from nodes, name=>realName
					id: "id",
					name: "name",
					"class": "className"
				},
				HTML: false, //if true, entities are escaped ( <, >, \t, space and \n )
				indentChar: "  ", //indentation unit
				multiline: true //if true, items in a collection, are separated by a \n, else just a space.
			};

		return jsDump;
	}());

	// from Sizzle.js
	function getText(elems) {
		var i, elem,
			ret = "";

		for (i = 0; elems[i]; i++) {
			elem = elems[i];

			// Get the text from text nodes and CDATA nodes
			if (elem.nodeType === 3 || elem.nodeType === 4) {
				ret += elem.nodeValue;

				// Traverse everything else, except comment nodes
			} else if (elem.nodeType !== 8) {
				ret += getText(elem.childNodes);
			}
		}

		return ret;
	}

	// from jquery.js
	function inArray(elem, array) {
		if (array.indexOf) {
			return array.indexOf(elem);
		}

		for (var i = 0, length = array.length; i < length; i++) {
			if (array[i] === elem) {
				return i;
			}
		}

		return -1;
	}

	/*
	 * Javascript Diff Algorithm
	 *  By John Resig (http://ejohn.org/)
	 *  Modified by Chu Alan "sprite"
	 *
	 * Released under the MIT license.
	 *
	 * More Info:
	 *  http://ejohn.org/projects/javascript-diff-algorithm/
	 *
	 * Usage: QUnit.diff(expected, actual)
	 *
	 * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) == "the  quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over"
	 */
	QUnit.diff = (function () {
		function diff(o, n) {
			var i,
				ns = {},
				os = {};

			for (i = 0; i < n.length; i++) {
				if (ns[n[i]] == null) {
					ns[n[i]] = {
						rows: [],
						o: null
					};
				}
				ns[n[i]].rows.push(i);
			}

			for (i = 0; i < o.length; i++) {
				if (os[o[i]] == null) {
					os[o[i]] = {
						rows: [],
						n: null
					};
				}
				os[o[i]].rows.push(i);
			}

			for (i in ns) {
				if (!hasOwn.call(ns, i)) {
					continue;
				}
				if (ns[i].rows.length == 1 && typeof os[i] != "undefined" && os[i].rows.length == 1) {
					n[ns[i].rows[0]] = {
						text: n[ns[i].rows[0]],
						row: os[i].rows[0]
					};
					o[os[i].rows[0]] = {
						text: o[os[i].rows[0]],
						row: ns[i].rows[0]
					};
				}
			}

			for (i = 0; i < n.length - 1; i++) {
				if (n[i].text != null && n[i + 1].text == null && n[i].row + 1 < o.length && o[n[i].row + 1].text == null &&
					n[i + 1] == o[n[i].row + 1]) {

					n[i + 1] = {
						text: n[i + 1],
						row: n[i].row + 1
					};
					o[n[i].row + 1] = {
						text: o[n[i].row + 1],
						row: i + 1
					};
				}
			}

			for (i = n.length - 1; i > 0; i--) {
				if (n[i].text != null && n[i - 1].text == null && n[i].row > 0 && o[n[i].row - 1].text == null &&
					n[i - 1] == o[n[i].row - 1]) {

					n[i - 1] = {
						text: n[i - 1],
						row: n[i].row - 1
					};
					o[n[i].row - 1] = {
						text: o[n[i].row - 1],
						row: i - 1
					};
				}
			}

			return {
				o: o,
				n: n
			};
		}

		return function (o, n) {
			o = o.replace(/\s+$/, "");
			n = n.replace(/\s+$/, "");

			var i, pre,
				str = "",
				out = diff(o === "" ? [] : o.split(/\s+/), n === "" ? [] : n.split(/\s+/)),
				oSpace = o.match(/\s+/g),
				nSpace = n.match(/\s+/g);

			if (oSpace == null) {
				oSpace = [" "];
			} else {
				oSpace.push(" ");
			}

			if (nSpace == null) {
				nSpace = [" "];
			} else {
				nSpace.push(" ");
			}

			if (out.n.length === 0) {
				for (i = 0; i < out.o.length; i++) {
					str += "<del>" + out.o[i] + oSpace[i] + "</del>";
				}
			} else {
				if (out.n[0].text == null) {