From ac01c25abcbe7d2ede91723ac91d519bd170fd1f Mon Sep 17 00:00:00 2001
From: Moritz Bunkus <m.bunkus@linet-services.de>
Date: Tue, 24 Feb 2015 13:32:12 +0100
Subject: [PATCH] JavaScript-Test-Framework auf Basis von QUnit

---
 SL/Controller/JSTests.pm             |   54 +
 css/qunit-1.17.1.css                 |  280 +++
 css/qunit.css                        |    1 +
 js/qunit-1.17.1.js                   | 2875 ++++++++++++++++++++++++++
 js/qunit.js                          |    1 +
 js/t/example.js                      |   21 +
 locale/de/all                        |    4 +
 templates/webpages/js_tests/run.html |   28 +
 8 files changed, 3264 insertions(+)
 create mode 100644 SL/Controller/JSTests.pm
 create mode 100644 css/qunit-1.17.1.css
 create mode 120000 css/qunit.css
 create mode 100644 js/qunit-1.17.1.js
 create mode 120000 js/qunit.js
 create mode 100644 js/t/example.js
 create mode 100644 templates/webpages/js_tests/run.html

diff --git a/SL/Controller/JSTests.pm b/SL/Controller/JSTests.pm
new file mode 100644
index 000000000..1c8a67bd2
--- /dev/null
+++ b/SL/Controller/JSTests.pm
@@ -0,0 +1,54 @@
+package SL::Controller::JSTests;
+
+use strict;
+
+use parent qw(SL::Controller::Base);
+
+use File::Find ();
+use File::Spec ();
+
+use SL::System::Process;
+
+use Rose::Object::MakeMethods::Generic
+(
+  'scalar --get_set_init' => [ qw(all_scripts scripts_to_run) ],
+);
+
+#
+# actions
+#
+
+sub action_run {
+  my ($self) = @_;
+
+  $::request->layout->use_stylesheet("css/qunit.css");
+  $self->render('js_tests/run', title => $::locale->text('Run JavaScript unit tests'));
+}
+
+#
+# helpers
+#
+
+sub init_all_scripts {
+  my ($self) = @_;
+
+  my $exe_dir = SL::System::Process->exe_dir;
+
+  my @scripts;
+  my $wanted = sub {
+    return if ( ! -f $File::Find::name ) || ($File::Find::name !~ m{\.js$});
+    push @scripts, File::Spec->abs2rel($File::Find::name, $exe_dir);
+  };
+
+  File::Find::find($wanted, $exe_dir . '/js/t');
+
+  return \@scripts;
+}
+
+sub init_scripts_to_run {
+  my ($self) = @_;
+  my $filter = $::form->{file_filter} || '.';
+  return [ grep { m{$filter} } @{ $self->all_scripts } ];
+}
+
+1;
diff --git a/css/qunit-1.17.1.css b/css/qunit-1.17.1.css
new file mode 100644
index 000000000..0eb0b0171
--- /dev/null
+++ b/css/qunit-1.17.1.css
@@ -0,0 +1,280 @@
+/*!
+ * QUnit 1.17.1
+ * http://qunitjs.com/
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2015-01-20T19:39Z
+ */
+
+/** Font Family and Sizes */
+
+#qunit-tests, #qunit-header, #qunit-banner, #qunit-testrunner-toolbar, #qunit-userAgent, #qunit-testresult {
+	font-family: "Helvetica Neue Light", "HelveticaNeue-Light", "Helvetica Neue", Calibri, Helvetica, Arial, sans-serif;
+}
+
+#qunit-testrunner-toolbar, #qunit-userAgent, #qunit-testresult, #qunit-tests li { font-size: small; }
+#qunit-tests { font-size: smaller; }
+
+
+/** Resets */
+
+#qunit-tests, #qunit-header, #qunit-banner, #qunit-userAgent, #qunit-testresult, #qunit-modulefilter {
+	margin: 0;
+	padding: 0;
+}
+
+
+/** Header */
+
+#qunit-header {
+	padding: 0.5em 0 0.5em 1em;
+
+	color: #8699A4;
+	background-color: #0D3349;
+
+	font-size: 1.5em;
+	line-height: 1em;
+	font-weight: 400;
+
+	border-radius: 5px 5px 0 0;
+}
+
+#qunit-header a {
+	text-decoration: none;
+	color: #C2CCD1;
+}
+
+#qunit-header a:hover,
+#qunit-header a:focus {
+	color: #FFF;
+}
+
+#qunit-testrunner-toolbar label {
+	display: inline-block;
+	padding: 0 0.5em 0 0.1em;
+}
+
+#qunit-banner {
+	height: 5px;
+}
+
+#qunit-testrunner-toolbar {
+	padding: 0.5em 1em 0.5em 1em;
+	color: #5E740B;
+	background-color: #EEE;
+	overflow: hidden;
+}
+
+#qunit-userAgent {
+	padding: 0.5em 1em 0.5em 1em;
+	background-color: #2B81AF;
+	color: #FFF;
+	text-shadow: rgba(0, 0, 0, 0.5) 2px 2px 1px;
+}
+
+#qunit-modulefilter-container {
+	float: right;
+	padding: 0.2em;
+}
+
+.qunit-url-config {
+	display: inline-block;
+	padding: 0.1em;
+}
+
+.qunit-filter {
+	display: block;
+	float: right;
+	margin-left: 1em;
+}
+
+/** Tests: Pass/Fail */
+
+#qunit-tests {
+	list-style-position: inside;
+}
+
+#qunit-tests li {
+	padding: 0.4em 1em 0.4em 1em;
+	border-bottom: 1px solid #FFF;
+	list-style-position: inside;
+}
+
+#qunit-tests > li {
+	display: none;
+}
+
+#qunit-tests li.running,
+#qunit-tests li.pass,
+#qunit-tests li.fail,
+#qunit-tests li.skipped {
+	display: list-item;
+}
+
+#qunit-tests.hidepass li.running,
+#qunit-tests.hidepass li.pass {
+	display: none;
+}
+
+#qunit-tests li strong {
+	cursor: pointer;
+}
+
+#qunit-tests li.skipped strong {
+	cursor: default;
+}
+
+#qunit-tests li a {
+	padding: 0.5em;
+	color: #C2CCD1;
+	text-decoration: none;
+}
+#qunit-tests li a:hover,
+#qunit-tests li a:focus {
+	color: #000;
+}
+
+#qunit-tests li .runtime {
+	float: right;
+	font-size: smaller;
+}
+
+.qunit-assert-list {
+	margin-top: 0.5em;
+	padding: 0.5em;
+
+	background-color: #FFF;
+
+	border-radius: 5px;
+}
+
+.qunit-collapsed {
+	display: none;
+}
+
+#qunit-tests table {
+	border-collapse: collapse;
+	margin-top: 0.2em;
+}
+
+#qunit-tests th {
+	text-align: right;
+	vertical-align: top;
+	padding: 0 0.5em 0 0;
+}
+
+#qunit-tests td {
+	vertical-align: top;
+}
+
+#qunit-tests pre {
+	margin: 0;
+	white-space: pre-wrap;
+	word-wrap: break-word;
+}
+
+#qunit-tests del {
+	background-color: #E0F2BE;
+	color: #374E0C;
+	text-decoration: none;
+}
+
+#qunit-tests ins {
+	background-color: #FFCACA;
+	color: #500;
+	text-decoration: none;
+}
+
+/*** Test Counts */
+
+#qunit-tests b.counts                       { color: #000; }
+#qunit-tests b.passed                       { color: #5E740B; }
+#qunit-tests b.failed                       { color: #710909; }
+
+#qunit-tests li li {
+	padding: 5px;
+	background-color: #FFF;
+	border-bottom: none;
+	list-style-position: inside;
+}
+
+/*** Passing Styles */
+
+#qunit-tests li li.pass {
+	color: #3C510C;
+	background-color: #FFF;
+	border-left: 10px solid #C6E746;
+}
+
+#qunit-tests .pass                          { color: #528CE0; background-color: #D2E0E6; }
+#qunit-tests .pass .test-name               { color: #366097; }
+
+#qunit-tests .pass .test-actual,
+#qunit-tests .pass .test-expected           { color: #999; }
+
+#qunit-banner.qunit-pass                    { background-color: #C6E746; }
+
+/*** Failing Styles */
+
+#qunit-tests li li.fail {
+	color: #710909;
+	background-color: #FFF;
+	border-left: 10px solid #EE5757;
+	white-space: pre;
+}
+
+#qunit-tests > li:last-child {
+	border-radius: 0 0 5px 5px;
+}
+
+#qunit-tests .fail                          { color: #000; background-color: #EE5757; }
+#qunit-tests .fail .test-name,
+#qunit-tests .fail .module-name             { color: #000; }
+
+#qunit-tests .fail .test-actual             { color: #EE5757; }
+#qunit-tests .fail .test-expected           { color: #008000; }
+
+#qunit-banner.qunit-fail                    { background-color: #EE5757; }
+
+/*** Skipped tests */
+
+#qunit-tests .skipped {
+	background-color: #EBECE9;
+}
+
+#qunit-tests .qunit-skipped-label {
+	background-color: #F4FF77;
+	display: inline-block;
+	font-style: normal;
+	color: #366097;
+	line-height: 1.8em;
+	padding: 0 0.5em;
+	margin: -0.4em 0.4em -0.4em 0;
+}
+
+/** Result */
+
+#qunit-testresult {
+	padding: 0.5em 1em 0.5em 1em;
+
+	color: #2B81AF;
+	background-color: #D2E0E6;
+
+	border-bottom: 1px solid #FFF;
+}
+#qunit-testresult .module-name {
+	font-weight: 700;
+}
+
+/** Fixture */
+
+#qunit-fixture {
+	position: absolute;
+	top: -10000px;
+	left: -10000px;
+	width: 1000px;
+	height: 1000px;
+}
diff --git a/css/qunit.css b/css/qunit.css
new file mode 120000
index 000000000..3487deb47
--- /dev/null
+++ b/css/qunit.css
@@ -0,0 +1 @@
+qunit-1.17.1.css
\ No newline at end of file
diff --git a/js/qunit-1.17.1.js b/js/qunit-1.17.1.js
new file mode 100644
index 000000000..006ca4747
--- /dev/null
+++ b/js/qunit-1.17.1.js
@@ -0,0 +1,2875 @@
+/*!
+ * QUnit 1.17.1
+ * http://qunitjs.com/
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2015-01-20T19:39Z
+ */
+
+(function( window ) {
+
+var QUnit,
+	config,
+	onErrorFnPrev,
+	loggingCallbacks = {},
+	fileName = ( sourceFromStacktrace( 0 ) || "" ).replace( /(:\d+)+\)?/, "" ).replace( /.+\//, "" ),
+	toString = Object.prototype.toString,
+	hasOwn = Object.prototype.hasOwnProperty,
+	// Keep a local reference to Date (GH-283)
+	Date = window.Date,
+	now = Date.now || function() {
+		return new Date().getTime();
+	},
+	globalStartCalled = false,
+	runStarted = false,
+	setTimeout = window.setTimeout,
+	clearTimeout = window.clearTimeout,
+	defined = {
+		document: window.document !== undefined,
+		setTimeout: window.setTimeout !== undefined,
+		sessionStorage: (function() {
+			var x = "qunit-test-string";
+			try {
+				sessionStorage.setItem( x, x );
+				sessionStorage.removeItem( x );
+				return true;
+			} catch ( e ) {
+				return false;
+			}
+		}())
+	},
+	/**
+	 * Provides a normalized error string, correcting an issue
+	 * with IE 7 (and prior) where Error.prototype.toString is
+	 * not properly implemented
+	 *
+	 * Based on http://es5.github.com/#x15.11.4.4
+	 *
+	 * @param {String|Error} error
+	 * @return {String} error message
+	 */
+	errorString = function( error ) {
+		var name, message,
+			errorString = error.toString();
+		if ( errorString.substring( 0, 7 ) === "[object" ) {
+			name = error.name ? error.name.toString() : "Error";
+			message = error.message ? error.message.toString() : "";
+			if ( name && message ) {
+				return name + ": " + message;
+			} else if ( name ) {
+				return name;
+			} else if ( message ) {
+				return message;
+			} else {
+				return "Error";
+			}
+		} else {
+			return errorString;
+		}
+	},
+	/**
+	 * Makes a clone of an object using only Array or Object as base,
+	 * and copies over the own enumerable properties.
+	 *
+	 * @param {Object} obj
+	 * @return {Object} New object with only the own properties (recursively).
+	 */
+	objectValues = function( obj ) {
+		var key, val,
+			vals = QUnit.is( "array", obj ) ? [] : {};
+		for ( key in obj ) {
+			if ( hasOwn.call( obj, key ) ) {
+				val = obj[ key ];
+				vals[ key ] = val === Object( val ) ? objectValues( val ) : val;
+			}
+		}
+		return vals;
+	};
+
+QUnit = {};
+
+/**
+ * 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,
+
+	// 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,
+
+	// by default, scroll to top of the page when suite is done
+	scrolltop: 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: "hidepassed",
+			label: "Hide passed tests",
+			tooltip: "Only show tests and assertions that fail. Stored as query-strings."
+		},
+		{
+			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."
+		}
+	],
+
+	// Set of all modules.
+	modules: [],
+
+	// The first unnamed module
+	currentModule: {
+		name: "",
+		tests: []
+	},
+
+	callbacks: {}
+};
+
+// Push a loose unnamed module to the modules collection
+config.modules.push( config.currentModule );
+
+// Initialize more QUnit.config and QUnit.urlParams
+(function() {
+	var i, current,
+		location = window.location || { search: "", protocol: "file:" },
+		params = location.search.slice( 1 ).split( "&" ),
+		length = params.length,
+		urlParams = {};
+
+	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;
+			if ( urlParams[ current[ 0 ] ] ) {
+				urlParams[ current[ 0 ] ] = [].concat( urlParams[ current[ 0 ] ], current[ 1 ] );
+			} else {
+				urlParams[ current[ 0 ] ] = current[ 1 ];
+			}
+		}
+	}
+
+	if ( urlParams.filter === true ) {
+		delete urlParams.filter;
+	}
+
+	QUnit.urlParams = urlParams;
+
+	// String search anywhere in moduleName+testName
+	config.filter = urlParams.filter;
+
+	config.testId = [];
+	if ( urlParams.testId ) {
+
+		// Ensure that urlParams.testId is an array
+		urlParams.testId = [].concat( urlParams.testId );
+		for ( i = 0; i < urlParams.testId.length; i++ ) {
+			config.testId.push( urlParams.testId[ i ] );
+		}
+	}
+
+	// Figure out if we're running the tests from a server or not
+	QUnit.isLocal = location.protocol === "file:";
+}());
+
+// Root QUnit object.
+// `QUnit` initialized at top of scope
+extend( QUnit, {
+
+	// call on start of module test to prepend name to all tests
+	module: function( name, testEnvironment ) {
+		var currentModule = {
+			name: name,
+			testEnvironment: testEnvironment,
+			tests: []
+		};
+
+		// DEPRECATED: handles setup/teardown functions,
+		// beforeEach and afterEach should be used instead
+		if ( testEnvironment && testEnvironment.setup ) {
+			testEnvironment.beforeEach = testEnvironment.setup;
+			delete testEnvironment.setup;
+		}
+		if ( testEnvironment && testEnvironment.teardown ) {
+			testEnvironment.afterEach = testEnvironment.teardown;
+			delete testEnvironment.teardown;
+		}
+
+		config.modules.push( currentModule );
+		config.currentModule = currentModule;
+	},
+
+	// DEPRECATED: QUnit.asyncTest() will be removed in QUnit 2.0.
+	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;
+
+		if ( arguments.length === 2 ) {
+			callback = expected;
+			expected = null;
+		}
+
+		test = new Test({
+			testName: testName,
+			expected: expected,
+			async: async,
+			callback: callback
+		});
+
+		test.queue();
+	},
+
+	skip: function( testName ) {
+		var test = new Test({
+			testName: testName,
+			skip: true
+		});
+
+		test.queue();
+	},
+
+	// DEPRECATED: The functionality of QUnit.start() will be altered in QUnit 2.0.
+	// In QUnit 2.0, invoking it will ONLY affect the `QUnit.config.autostart` blocking behavior.
+	start: function( count ) {
+		var globalStartAlreadyCalled = globalStartCalled;
+
+		if ( !config.current ) {
+			globalStartCalled = true;
+
+			if ( runStarted ) {
+				throw new Error( "Called start() outside of a test context while already started" );
+			} else if ( globalStartAlreadyCalled || count > 1 ) {
+				throw new Error( "Called start() outside of a test context too many times" );
+			} else if ( config.autostart ) {
+				throw new Error( "Called start() outside of a test context when " +
+					"QUnit.config.autostart was true" );
+			} else if ( !config.pageLoaded ) {
+
+				// The page isn't completely loaded yet, so bail out and let `QUnit.load` handle it
+				config.autostart = true;
+				return;
+			}
+		} else {
+
+			// If a test is running, adjust its semaphore
+			config.current.semaphore -= count || 1;
+
+			// Don't start until equal number of stop-calls
+			if ( config.current.semaphore > 0 ) {
+				return;
+			}
+
+			// throw an Error if start is called more often than stop
+			if ( config.current.semaphore < 0 ) {
+				config.current.semaphore = 0;
+
+				QUnit.pushFailure(
+					"Called start() while already started (test's semaphore was 0 already)",
+					sourceFromStacktrace( 2 )
+				);
+				return;
+			}
+		}
+
+		resumeProcessing();
+	},
+
+	// DEPRECATED: QUnit.stop() will be removed in QUnit 2.0.
+	stop: function( count ) {
+
+		// If there isn't a test running, don't allow QUnit.stop() to be called
+		if ( !config.current ) {
+			throw new Error( "Called stop() outside of a test context" );
+		}
+
+		// If a test is running, adjust its semaphore
+		config.current.semaphore += count || 1;
+
+		pauseProcessing();
+	},
+
+	config: config,
+
+	// 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 match = toString.call( obj ).match( /^\[object\s(.*)\]$/ ),
+			type = match && match[ 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;
+	},
+
+	extend: extend,
+
+	load: function() {
+		config.pageLoaded = true;
+
+		// Initialize the configuration options
+		extend( config, {
+			stats: { all: 0, bad: 0 },
+			moduleStats: { all: 0, bad: 0 },
+			started: 0,
+			updateRate: 1000,
+			autostart: true,
+			filter: ""
+		}, true );
+
+		config.blocking = false;
+
+		if ( config.autostart ) {
+			resumeProcessing();
+		}
+	}
+});
+
+// Register logging callbacks
+(function() {
+	var i, l, key,
+		callbacks = [ "begin", "done", "log", "testStart", "testDone",
+			"moduleStart", "moduleDone" ];
+
+	function registerLoggingCallback( key ) {
+		var loggingCallback = function( callback ) {
+			if ( QUnit.objectType( callback ) !== "function" ) {
+				throw new Error(
+					"QUnit logging methods require a callback function as their first parameters."
+				);
+			}
+
+			config.callbacks[ key ].push( callback );
+		};
+
+		// DEPRECATED: This will be removed on QUnit 2.0.0+
+		// Stores the registered functions allowing restoring
+		// at verifyLoggingCallbacks() if modified
+		loggingCallbacks[ key ] = loggingCallback;
+
+		return loggingCallback;
+	}
+
+	for ( i = 0, l = callbacks.length; i < l; i++ ) {
+		key = callbacks[ i ];
+
+		// Initialize key collection of logging callback
+		if ( QUnit.objectType( config.callbacks[ key ] ) === "undefined" ) {
+			config.callbacks[ key ] = [];
+		}
+
+		QUnit[ key ] = registerLoggingCallback( key );
+	}
+})();
+
+// `onErrorFnPrev` initialized at top of scope
+// Preserve other handlers
+onErrorFnPrev = window.onerror;
+
+// Cover uncaught exceptions
+// Returning true will suppress 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 suppressed.
+	if ( ret !== true ) {
+		if ( QUnit.config.current ) {
+			if ( QUnit.config.current.ignoreGlobalErrors ) {
+				return true;
+			}
+			QUnit.pushFailure( error, filePath + ":" + linerNr );
+		} else {
+			QUnit.test( "global failure", extend(function() {
+				QUnit.pushFailure( error, filePath + ":" + linerNr );
+			}, { validTest: true } ) );
+		}
+		return false;
+	}
+
+	return ret;
+};
+
+function done() {
+	var runtime, passed;
+
+	config.autorun = true;
+
+	// Log the last module results
+	if ( config.previousModule ) {
+		runLoggingCallbacks( "moduleDone", {
+			name: config.previousModule.name,
+			tests: config.previousModule.tests,
+			failed: config.moduleStats.bad,
+			passed: config.moduleStats.all - config.moduleStats.bad,
+			total: config.moduleStats.all,
+			runtime: now() - config.moduleStats.started
+		});
+	}
+	delete config.previousModule;
+
+	runtime = now() - config.started;
+	passed = config.stats.all - config.stats.bad;
+
+	runLoggingCallbacks( "done", {
+		failed: config.stats.bad,
+		passed: passed,
+		total: config.stats.all,
+		runtime: runtime
+	});
+}
+
+// Doesn't support IE6 to IE9
+// See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
+function extractStacktrace( e, offset ) {
+	offset = offset === undefined ? 4 : offset;
+
+	var stack, include, i;
+
+	if ( e.stacktrace ) {
+
+		// Opera 12.x
+		return e.stacktrace.split( "\n" )[ offset + 3 ];
+	} else if ( e.stack ) {
+
+		// Firefox, Chrome, Safari 6+, IE10+, PhantomJS and Node
+		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 < 6
+		// 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 ) {
+	var e = new Error();
+	if ( !e.stack ) {
+		try {
+			throw e;
+		} catch ( err ) {
+			// This should already be true in most browsers
+			e = err;
+		}
+	}
+	return extractStacktrace( e, offset );
+}
+
+function synchronize( callback, last ) {
+	if ( QUnit.objectType( callback ) === "array" ) {
+		while ( callback.length ) {
+			synchronize( callback.shift() );
+		}
+		return;
+	}
+	config.queue.push( callback );
+
+	if ( config.autorun && !config.blocking ) {
+		process( last );
+	}
+}
+
+function process( last ) {
+	function next() {
+		process( last );
+	}
+	var start = now();
+	config.depth = ( config.depth || 0 ) + 1;
+
+	while ( config.queue.length && !config.blocking ) {
+		if ( !defined.setTimeout || config.updateRate <= 0 ||
+				( ( now() - start ) < config.updateRate ) ) {
+			if ( config.current ) {
+
+				// Reset async tracking for each phase of the Test lifecycle
+				config.current.usedAsync = false;
+			}
+			config.queue.shift()();
+		} else {
+			setTimeout( next, 13 );
+			break;
+		}
+	}
+	config.depth--;
+	if ( last && !config.blocking && !config.queue.length && config.depth === 0 ) {
+		done();
+	}
+}
+
+function begin() {
+	var i, l,
+		modulesLog = [];
+
+	// If the test run hasn't officially begun yet
+	if ( !config.started ) {
+
+		// Record the time of the test run's beginning
+		config.started = now();
+
+		verifyLoggingCallbacks();
+
+		// Delete the loose unnamed module if unused.
+		if ( config.modules[ 0 ].name === "" && config.modules[ 0 ].tests.length === 0 ) {
+			config.modules.shift();
+		}
+
+		// Avoid unnecessary information by not logging modules' test environments
+		for ( i = 0, l = config.modules.length; i < l; i++ ) {
+			modulesLog.push({
+				name: config.modules[ i ].name,
+				tests: config.modules[ i ].tests
+			});
+		}
+
+		// The test run is officially beginning now
+		runLoggingCallbacks( "begin", {
+			totalTests: Test.count,
+			modules: modulesLog
+		});
+	}
+
+	config.blocking = false;
+	process( true );
+}
+
+function resumeProcessing() {
+	runStarted = true;
+
+	// A slight delay to allow this iteration of the event loop to finish (more assertions, etc.)
+	if ( defined.setTimeout ) {
+		setTimeout(function() {
+			if ( config.current && config.current.semaphore > 0 ) {
+				return;
+			}
+			if ( config.timeout ) {
+				clearTimeout( config.timeout );
+			}
+
+			begin();
+		}, 13 );
+	} else {
+		begin();
+	}
+}
+
+function pauseProcessing() {
+	config.blocking = true;
+
+	if ( config.testTimeout && defined.setTimeout ) {
+		clearTimeout( config.timeout );
+		config.timeout = setTimeout(function() {
+			if ( config.current ) {
+				config.current.semaphore = 0;
+				QUnit.pushFailure( "Test timed out", sourceFromStacktrace( 2 ) );
+			} else {
+				throw new Error( "Test timed out" );
+			}
+			resumeProcessing();
+		}, config.testTimeout );
+	}
+}
+
+function saveGlobal() {
+	config.pollution = [];
+
+	if ( config.noglobals ) {
+		for ( var key in window ) {
+			if ( hasOwn.call( window, key ) ) {
+				// in Opera sometimes DOM element ids show up here, ignore them
+				if ( /^qunit-test-output/.test( key ) ) {
+					continue;
+				}
+				config.pollution.push( key );
+			}
+		}
+	}
+}
+
+function checkPollution() {
+	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, undefOnly ) {
+	for ( var prop in b ) {
+		if ( hasOwn.call( b, prop ) ) {
+
+			// Avoid "Member not found" error in IE8 caused by messing with window.constructor
+			if ( !( prop === "constructor" && a === window ) ) {
+				if ( b[ prop ] === undefined ) {
+					delete a[ prop ];
+				} else if ( !( undefOnly && typeof a[ prop ] !== "undefined" ) ) {
+					a[ prop ] = b[ prop ];
+				}
+			}
+		}
+	}
+
+	return a;
+}
+
+function runLoggingCallbacks( key, args ) {
+	var i, l, callbacks;
+
+	callbacks = config.callbacks[ key ];
+	for ( i = 0, l = callbacks.length; i < l; i++ ) {
+		callbacks[ i ]( args );
+	}
+}
+
+// DEPRECATED: This will be removed on 2.0.0+
+// This function verifies if the loggingCallbacks were modified by the user
+// If so, it will restore it, assign the given callback and print a console warning
+function verifyLoggingCallbacks() {
+	var loggingCallback, userCallback;
+
+	for ( loggingCallback in loggingCallbacks ) {
+		if ( QUnit[ loggingCallback ] !== loggingCallbacks[ loggingCallback ] ) {
+
+			userCallback = QUnit[ loggingCallback ];
+
+			// Restore the callback function
+			QUnit[ loggingCallback ] = loggingCallbacks[ loggingCallback ];
+
+			// Assign the deprecated given callback
+			QUnit[ loggingCallback ]( userCallback );
+
+			if ( window.console && window.console.warn ) {
+				window.console.warn(
+					"QUnit." + loggingCallback + " was replaced with a new value.\n" +
+					"Please, check out the documentation on how to apply logging callbacks.\n" +
+					"Reference: http://api.qunitjs.com/category/callbacks/"
+				);
+			}
+		}
+	}
+}
+
+// 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;
+}
+
+function Test( settings ) {
+	var i, l;
+
+	++Test.count;
+
+	extend( this, settings );
+	this.assertions = [];
+	this.semaphore = 0;
+	this.usedAsync = false;
+	this.module = config.currentModule;
+	this.stack = sourceFromStacktrace( 3 );
+
+	// Register unique strings
+	for ( i = 0, l = this.module.tests; i < l.length; i++ ) {
+		if ( this.module.tests[ i ].name === this.testName ) {
+			this.testName += " ";
+		}
+	}
+
+	this.testId = generateHash( this.module.name, this.testName );
+
+	this.module.tests.push({
+		name: this.testName,
+		testId: this.testId
+	});
+
+	if ( settings.skip ) {
+
+		// Skipped tests will fully ignore any sent callback
+		this.callback = function() {};
+		this.async = false;
+		this.expected = 0;
+	} else {
+		this.assert = new Assert( this );
+	}
+}
+
+Test.count = 0;
+
+Test.prototype = {
+	before: function() {
+		if (
+
+			// Emit moduleStart when we're switching from one module to another
+			this.module !== config.previousModule ||
+
+				// They could be equal (both undefined) but if the previousModule property doesn't
+				// yet exist it means this is the first test in a suite that isn't wrapped in a
+				// module, in which case we'll just emit a moduleStart event for 'undefined'.
+				// Without this, reporters can get testStart before moduleStart  which is a problem.
+				!hasOwn.call( config, "previousModule" )
+		) {
+			if ( hasOwn.call( config, "previousModule" ) ) {
+				runLoggingCallbacks( "moduleDone", {
+					name: config.previousModule.name,
+					tests: config.previousModule.tests,
+					failed: config.moduleStats.bad,
+					passed: config.moduleStats.all - config.moduleStats.bad,
+					total: config.moduleStats.all,
+					runtime: now() - config.moduleStats.started
+				});
+			}
+			config.previousModule = this.module;
+			config.moduleStats = { all: 0, bad: 0, started: now() };
+			runLoggingCallbacks( "moduleStart", {
+				name: this.module.name,
+				tests: this.module.tests
+			});
+		}
+
+		config.current = this;
+
+		this.testEnvironment = extend( {}, this.module.testEnvironment );
+		delete this.testEnvironment.beforeEach;
+		delete this.testEnvironment.afterEach;
+
+		this.started = now();
+		runLoggingCallbacks( "testStart", {
+			name: this.testName,
+			module: this.module.name,
+			testId: this.testId
+		});
+
+		if ( !config.pollution ) {
+			saveGlobal();
+		}
+	},
+
+	run: function() {
+		var promise;
+
+		config.current = this;
+
+		if ( this.async ) {
+			QUnit.stop();
+		}
+
+		this.callbackStarted = now();
+
+		if ( config.notrycatch ) {
+			promise = this.callback.call( this.testEnvironment, this.assert );
+			this.resolvePromise( promise );
+			return;
+		}
+
+		try {
+			promise = this.callback.call( this.testEnvironment, this.assert );
+			this.resolvePromise( promise );
+		} catch ( e ) {
+			this.pushFailure( "Died on test #" + ( this.assertions.length + 1 ) + " " +
+				this.stack + ": " + ( e.message || e ), extractStacktrace( e, 0 ) );
+
+			// else next test will carry the responsibility
+			saveGlobal();
+
+			// Restart the tests if they're blocking
+			if ( config.blocking ) {
+				QUnit.start();
+			}
+		}
+	},
+
+	after: function() {
+		checkPollution();
+	},
+
+	queueHook: function( hook, hookName ) {
+		var promise,
+			test = this;
+		return function runHook() {
+			config.current = test;
+			if ( config.notrycatch ) {
+				promise = hook.call( test.testEnvironment, test.assert );
+				test.resolvePromise( promise, hookName );
+				return;
+			}
+			try {
+				promise = hook.call( test.testEnvironment, test.assert );
+				test.resolvePromise( promise, hookName );
+			} catch ( error ) {
+				test.pushFailure( hookName + " failed on " + test.testName + ": " +
+					( error.message || error ), extractStacktrace( error, 0 ) );
+			}
+		};
+	},
+
+	// Currently only used for module level hooks, can be used to add global level ones
+	hooks: function( handler ) {
+		var hooks = [];
+
+		// Hooks are ignored on skipped tests
+		if ( this.skip ) {
+			return hooks;
+		}
+
+		if ( this.module.testEnvironment &&
+				QUnit.objectType( this.module.testEnvironment[ handler ] ) === "function" ) {
+			hooks.push( this.queueHook( this.module.testEnvironment[ handler ], handler ) );
+		}
+
+		return hooks;
+	},
+
+	finish: function() {
+		config.current = this;
+		if ( config.requireExpects && this.expected === null ) {
+			this.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 ) {
+			this.pushFailure( "Expected " + this.expected + " assertions, but " +
+				this.assertions.length + " were run", this.stack );
+		} else if ( this.expected === null && !this.assertions.length ) {
+			this.pushFailure( "Expected at least one assertion, but none were run - call " +
+				"expect(0) to accept zero assertions.", this.stack );
+		}
+
+		var i,
+			bad = 0;
+
+		this.runtime = now() - this.started;
+		config.stats.all += this.assertions.length;
+		config.moduleStats.all += this.assertions.length;
+
+		for ( i = 0; i < this.assertions.length; i++ ) {
+			if ( !this.assertions[ i ].result ) {
+				bad++;
+				config.stats.bad++;
+				config.moduleStats.bad++;
+			}
+		}
+
+		runLoggingCallbacks( "testDone", {
+			name: this.testName,
+			module: this.module.name,
+			skipped: !!this.skip,
+			failed: bad,
+			passed: this.assertions.length - bad,
+			total: this.assertions.length,
+			runtime: this.runtime,
+
+			// HTML Reporter use
+			assertions: this.assertions,
+			testId: this.testId,
+
+			// DEPRECATED: this property will be removed in 2.0.0, use runtime instead
+			duration: this.runtime
+		});
+
+		// QUnit.reset() is deprecated and will be replaced for a new
+		// fixture reset function on QUnit 2.0/2.1.
+		// It's still called here for backwards compatibility handling
+		QUnit.reset();
+
+		config.current = undefined;
+	},
+
+	queue: function() {
+		var bad,
+			test = this;
+
+		if ( !this.valid() ) {
+			return;
+		}
+
+		function run() {
+
+			// each of these can by async
+			synchronize([
+				function() {
+					test.before();
+				},
+
+				test.hooks( "beforeEach" ),
+
+				function() {
+					test.run();
+				},
+
+				test.hooks( "afterEach" ).reverse(),
+
+				function() {
+					test.after();
+				},
+				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.name + "-" + this.testName );
+
+		if ( bad ) {
+			run();
+		} else {
+			synchronize( run, true );
+		}
+	},
+
+	push: function( result, actual, expected, message ) {
+		var source,
+			details = {
+				module: this.module.name,
+				name: this.testName,
+				result: result,
+				message: message,
+				actual: actual,
+				expected: expected,
+				testId: this.testId,
+				runtime: now() - this.started
+			};
+
+		if ( !result ) {
+			source = sourceFromStacktrace();
+
+			if ( source ) {
+				details.source = source;
+			}
+		}
+
+		runLoggingCallbacks( "log", details );
+
+		this.assertions.push({
+			result: !!result,
+			message: message
+		});
+	},
+
+	pushFailure: function( message, source, actual ) {
+		if ( !this instanceof Test ) {
+			throw new Error( "pushFailure() assertion outside test context, was " +
+				sourceFromStacktrace( 2 ) );
+		}
+
+		var details = {
+				module: this.module.name,
+				name: this.testName,
+				result: false,
+				message: message || "error",
+				actual: actual || null,
+				testId: this.testId,
+				runtime: now() - this.started
+			};
+
+		if ( source ) {
+			details.source = source;
+		}
+
+		runLoggingCallbacks( "log", details );
+
+		this.assertions.push({
+			result: false,
+			message: message
+		});
+	},
+
+	resolvePromise: function( promise, phase ) {
+		var then, message,
+			test = this;
+		if ( promise != null ) {
+			then = promise.then;
+			if ( QUnit.objectType( then ) === "function" ) {
+				QUnit.stop();
+				then.call(
+					promise,
+					QUnit.start,
+					function( error ) {
+						message = "Promise rejected " +
+							( !phase ? "during" : phase.replace( /Each$/, "" ) ) +
+							" " + test.testName + ": " + ( error.message || error );
+						test.pushFailure( message, extractStacktrace( error, 0 ) );
+
+						// else next test will carry the responsibility
+						saveGlobal();
+
+						// Unblock
+						QUnit.start();
+					}
+				);
+			}
+		}
+	},
+
+	valid: function() {
+		var include,
+			filter = config.filter,
+			module = QUnit.urlParams.module && QUnit.urlParams.module.toLowerCase(),
+			fullName = ( this.module.name + ": " + this.testName ).toLowerCase();
+
+		// Internally-generated tests are always valid
+		if ( this.callback && this.callback.validTest ) {
+			return true;
+		}
+
+		if ( config.testId.length > 0 && inArray( this.testId, config.testId ) < 0 ) {
+			return false;
+		}
+
+		if ( module && ( !this.module.name || this.module.name.toLowerCase() !== module ) ) {
+			return false;
+		}
+
+		if ( !filter ) {
+			return true;
+		}
+
+		include = filter.charAt( 0 ) !== "!";
+		if ( !include ) {
+			filter = filter.toLowerCase().slice( 1 );
+		}
+
+		// If the filter matches, we need to honour include
+		if ( fullName.indexOf( filter ) !== -1 ) {
+			return include;
+		}
+
+		// Otherwise, do the opposite
+		return !include;
+	}
+
+};
+
+// Resets the test setup. Useful for tests that modify the DOM.
+/*
+DEPRECATED: Use multiple tests instead of resetting inside a test.
+Use testStart or testDone for custom cleanup.
+This method will throw an error in 2.0, and will be removed in 2.1
+*/
+QUnit.reset = function() {
+
+	// Return on non-browser environments
+	// This is necessary to not break on node tests
+	if ( typeof window === "undefined" ) {
+		return;
+	}
+
+	var fixture = defined.document && document.getElementById &&
+			document.getElementById( "qunit-fixture" );
+
+	if ( fixture ) {
+		fixture.innerHTML = config.fixture;
+	}
+};
+
+QUnit.pushFailure = function() {
+	if ( !QUnit.config.current ) {
+		throw new Error( "pushFailure() assertion outside test context, in " +
+			sourceFromStacktrace( 2 ) );
+	}
+
+	// Gets current test obj
+	var currentTest = QUnit.config.current;
+
+	return currentTest.pushFailure.apply( currentTest, arguments );
+};
+
+// Based on Java's String.hashCode, a simple but not
+// rigorously collision resistant hashing function
+function generateHash( module, testName ) {
+	var hex,
+		i = 0,
+		hash = 0,
+		str = module + "\x1C" + testName,
+		len = str.length;
+
+	for ( ; i < len; i++ ) {
+		hash  = ( ( hash << 5 ) - hash ) + str.charCodeAt( i );
+		hash |= 0;
+	}
+
+	// Convert the possibly negative integer hash code into an 8 character hex string, which isn't
+	// strictly necessary but increases user understanding that the id is a SHA-like hash
+	hex = ( 0x100000000 + hash ).toString( 16 );
+	if ( hex.length < 8 ) {
+		hex = "0000000" + hex;
+	}
+
+	return hex.slice( -8 );
+}
+
+function Assert( testContext ) {
+	this.test = testContext;
+}
+
+// Assert helpers
+QUnit.assert = Assert.prototype = {
+
+	// Specify the number of expected assertions to guarantee that failed test
+	// (no assertions are run at all) don't slip through.
+	expect: function( asserts ) {
+		if ( arguments.length === 1 ) {
+			this.test.expected = asserts;
+		} else {
+			return this.test.expected;
+		}
+	},
+
+	// Increment this Test's semaphore counter, then return a single-use function that
+	// decrements that counter a maximum of once.
+	async: function() {
+		var test = this.test,
+			popped = false;
+
+		test.semaphore += 1;
+		test.usedAsync = true;
+		pauseProcessing();
+
+		return function done() {
+			if ( !popped ) {
+				test.semaphore -= 1;
+				popped = true;
+				resumeProcessing();
+			} else {
+				test.pushFailure( "Called the callback returned from `assert.async` more than once",
+					sourceFromStacktrace( 2 ) );
+			}
+		};
+	},
+
+	// Exports test.push() to the user API
+	push: function( /* result, actual, expected, message */ ) {
+		var assert = this,
+			currentTest = ( assert instanceof Assert && assert.test ) || QUnit.config.current;
+
+		// Backwards compatibility fix.
+		// Allows the direct use of global exported assertions and QUnit.assert.*
+		// Although, it's use is not recommended as it can leak assertions
+		// to other tests from async tests, because we only get a reference to the current test,
+		// not exactly the test where assertion were intended to be called.
+		if ( !currentTest ) {
+			throw new Error( "assertion outside test context, in " + sourceFromStacktrace( 2 ) );
+		}
+
+		if ( currentTest.usedAsync === true && currentTest.semaphore === 0 ) {
+			currentTest.pushFailure( "Assertion after the final `assert.async` was resolved",
+				sourceFromStacktrace( 2 ) );
+
+			// Allow this assertion to continue running anyway...
+		}
+
+		if ( !( assert instanceof Assert ) ) {
+			assert = currentTest.assert;
+		}
+		return assert.test.push.apply( assert.test, arguments );
+	},
+
+	/**
+	 * Asserts rough true-ish result.
+	 * @name ok
+	 * @function
+	 * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
+	 */
+	ok: function( result, message ) {
+		message = message || ( result ? "okay" : "failed, expected argument to be truthy, was: " +
+			QUnit.dump.parse( result ) );
+		this.push( !!result, result, true, message );
+	},
+
+	/**
+	 * 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( "{0} bytes.", 2), "2 bytes.", "replaces {0} with next argument" );
+	 */
+	equal: function( actual, expected, message ) {
+		/*jshint eqeqeq:false */
+		this.push( expected == actual, actual, expected, message );
+	},
+
+	/**
+	 * @name notEqual
+	 * @function
+	 */
+	notEqual: function( actual, expected, message ) {
+		/*jshint eqeqeq:false */
+		this.push( expected != actual, actual, expected, message );
+	},
+
+	/**
+	 * @name propEqual
+	 * @function
+	 */
+	propEqual: function( actual, expected, message ) {
+		actual = objectValues( actual );
+		expected = objectValues( expected );
+		this.push( QUnit.equiv( actual, expected ), actual, expected, message );
+	},
+
+	/**
+	 * @name notPropEqual
+	 * @function
+	 */
+	notPropEqual: function( actual, expected, message ) {
+		actual = objectValues( actual );
+		expected = objectValues( expected );
+		this.push( !QUnit.equiv( actual, expected ), actual, expected, message );
+	},
+
+	/**
+	 * @name deepEqual
+	 * @function
+	 */
+	deepEqual: function( actual, expected, message ) {
+		this.push( QUnit.equiv( actual, expected ), actual, expected, message );
+	},
+
+	/**
+	 * @name notDeepEqual
+	 * @function
+	 */
+	notDeepEqual: function( actual, expected, message ) {
+		this.push( !QUnit.equiv( actual, expected ), actual, expected, message );
+	},
+
+	/**
+	 * @name strictEqual
+	 * @function
+	 */
+	strictEqual: function( actual, expected, message ) {
+		this.push( expected === actual, actual, expected, message );
+	},
+
+	/**
+	 * @name notStrictEqual
+	 * @function
+	 */
+	notStrictEqual: function( actual, expected, message ) {
+		this.push( expected !== actual, actual, expected, message );
+	},
+
+	"throws": function( block, expected, message ) {
+		var actual, expectedType,
+			expectedOutput = expected,
+			ok = false;
+
+		// 'expected' is optional unless doing string comparison
+		if ( message == null && typeof expected === "string" ) {
+			message = expected;
+			expected = null;
+		}
+
+		this.test.ignoreGlobalErrors = true;
+		try {
+			block.call( this.test.testEnvironment );
+		} catch (e) {
+			actual = e;
+		}
+		this.test.ignoreGlobalErrors = false;
+
+		if ( actual ) {
+			expectedType = QUnit.objectType( expected );
+
+			// we don't want to validate thrown error
+			if ( !expected ) {
+				ok = true;
+				expectedOutput = null;
+
+			// expected is a regexp
+			} else if ( expectedType === "regexp" ) {
+				ok = expected.test( errorString( actual ) );
+
+			// expected is a string
+			} else if ( expectedType === "string" ) {
+				ok = expected === errorString( actual );
+
+			// expected is a constructor, maybe an Error constructor
+			} else if ( expectedType === "function" && actual instanceof expected ) {
+				ok = true;
+
+			// expected is an Error object
+			} else if ( expectedType === "object" ) {
+				ok = actual instanceof expected.constructor &&
+					actual.name === expected.name &&
+					actual.message === expected.message;
+
+			// expected is a validation function which returns true if validation passed
+			} else if ( expectedType === "function" && expected.call( {}, actual ) === true ) {
+				expectedOutput = null;
+				ok = true;
+			}
+
+			this.push( ok, actual, expectedOutput, message );
+		} else {
+			this.test.pushFailure( message, null, "No exception was thrown." );
+		}
+	}
+};
+
+// Provide an alternative to assert.throws(), for enviroments that consider throws a reserved word
+// Known to us are: Closure Compiler, Narwhal
+(function() {
+	/*jshint sub:true */
+	Assert.prototype.raises = Assert.prototype[ "throws" ];
+}());
+
+// 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 = [],
+		parentsB = [],
+
+		getProto = Object.getPrototypeOf || function( obj ) {
+			/* jshint camelcase: false, proto: true */
+			return obj.__proto__;
+		},
+		callbacks = (function() {
+
+			// for string, boolean, number and null
+			function useStrictEquality( b, a ) {
+
+				/*jshint eqeqeq:false */
+				if ( b instanceof a.constructor || a instanceof b.constructor ) {
+
+					// to catch short annotation 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 modifiers
+						a.global === b.global &&
+
+						// (gmi) ...
+						a.ignoreCase === b.ignoreCase &&
+						a.multiline === b.multiline &&
+						a.sticky === b.sticky;
+				},
+
+				// - 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, aCircular, bCircular;
+
+					// 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 );
+					parentsB.push( b );
+					for ( i = 0; i < len; i++ ) {
+						loop = false;
+						for ( j = 0; j < parents.length; j++ ) {
+							aCircular = parents[ j ] === a[ i ];
+							bCircular = parentsB[ j ] === b[ i ];
+							if ( aCircular || bCircular ) {
+								if ( a[ i ] === b[ i ] || aCircular && bCircular ) {
+									loop = true;
+								} else {
+									parents.pop();
+									parentsB.pop();
+									return false;
+								}
+							}
+						}
+						if ( !loop && !innerEquiv( a[ i ], b[ i ] ) ) {
+							parents.pop();
+							parentsB.pop();
+							return false;
+						}
+					}
+					parents.pop();
+					parentsB.pop();
+					return true;
+				},
+
+				"object": function( b, a ) {
+
+					/*jshint forin:false */
+					var i, j, loop, aCircular, bCircular,
+						// 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 );
+					parentsB.push( b );
+
+					// be strict: don't ensure hasOwnProperty and go deep
+					for ( i in a ) {
+						loop = false;
+						for ( j = 0; j < parents.length; j++ ) {
+							aCircular = parents[ j ] === a[ i ];
+							bCircular = parentsB[ j ] === b[ i ];
+							if ( aCircular || bCircular ) {
+								if ( a[ i ] === b[ i ] || aCircular && bCircular ) {
+									loop = true;
+								} else {
+									eq = false;
+									break;
+								}
+							}
+						}
+						aProperties.push( i );
+						if ( !loop && !innerEquiv( a[ i ], b[ i ] ) ) {
+							eq = false;
+							break;
+						}
+					}
+
+					parents.pop();
+					parentsB.pop();
+					callers.pop(); // unstack, we are done
+
+					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 ) ) {
+
+				// don't lose time with error prone cases
+				return false;
+			} else {
+				return bindCallbacks( a, callbacks, [ b, a ] );
+			}
+
+			// apply transition with (1..n) arguments
+		}( args[ 0 ], args[ 1 ] ) ) &&
+			innerEquiv.apply( this, args.splice( 1, args.length - 1 ) ) );
+	};
+
+	return innerEquiv;
+}());
+
+// Based on jsDump by Ariel Flesler
+// http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html
+QUnit.dump = (function() {
+	function quote( str ) {
+		return "\"" + str.toString().replace( /"/g, "\\\"" ) + "\"";
+	}
+	function literal( o ) {
+		return o + "";
+	}
+	function join( pre, arr, post ) {
+		var s = dump.separator(),
+			base = dump.indent(),
+			inner = dump.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 );
+
+		if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
+			return "[object Array]";
+		}
+
+		this.up();
+		while ( i-- ) {
+			ret[ i ] = this.parse( arr[ i ], undefined, stack );
+		}
+		this.down();
+		return join( "[", ret, "]" );
+	}
+
+	var reName = /^function (\w+)/,
+		dump = {
+
+			// objType is used mostly internally, you can fix a (custom) type in advance
+			parse: function( obj, objType, stack ) {
+				stack = stack || [];
+				var res, parser, parserType,
+					inStack = inArray( obj, stack );
+
+				if ( inStack !== -1 ) {
+					return "recursion(" + ( inStack - stack.length ) + ")";
+				}
+
+				objType = objType || this.typeOf( obj  );
+				parser = this.parsers[ objType ];
+				parserType = typeof parser;
+
+				if ( parserType === "function" ) {
+					stack.push( obj );
+					res = parser.call( this, obj, stack );
+					stack.pop();
+					return res;
+				}
+				return ( parserType === "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 ( obj.setInterval !== undefined &&
+						obj.document !== undefined &&
+						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" && obj.item !== undefined &&
+					( obj.length ? obj.item( 0 ) === obj[ 0 ] : ( obj.item( 0 ) === null &&
+					obj[ 0 ] === undefined ) ) )
+				) {
+					type = "array";
+				} else if ( obj.constructor === Error.prototype.constructor ) {
+					type = "error";
+				} else {
+					type = typeof obj;
+				}
+				return type;
+			},
+			separator: function() {
+				return this.multiline ? this.HTML ? "<br />" : "\n" : this.HTML ? "&#160;" : " ";
+			},
+			// extra can be a number, shortcut for increasing-calling-decreasing
+			indent: function( extra ) {
+				if ( !this.multiline ) {
+					return "";
+				}
+				var chr = this.indentChar;
+				if ( this.HTML ) {
+					chr = chr.replace( /\t/g, "   " ).replace( / /g, "&#160;" );
+				}
+				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,
+			maxDepth: 5,
+
+			// This is the list of parsers, to modify them, use dump.setParser
+			parsers: {
+				window: "[Window]",
+				document: "[Document]",
+				error: function( error ) {
+					return "Error(\"" + error.message + "\")";
+				},
+				unknown: "[Unknown]",
+				"null": "null",
+				"undefined": "undefined",
+				"function": function( fn ) {
+					var ret = "function",
+
+						// functions never have name in IE
+						name = "name" in fn ? fn.name : ( reName.exec( fn ) || [] )[ 1 ];
+
+					if ( name ) {
+						ret += " " + name;
+					}
+					ret += "( ";
+
+					ret = [ ret, dump.parse( fn, "functionArgs" ), "){" ].join( "" );
+					return join( ret, dump.parse( fn, "functionCode" ), "}" );
+				},
+				array: array,
+				nodelist: array,
+				"arguments": array,
+				object: function( map, stack ) {
+					var keys, key, val, i, nonEnumerableProperties,
+						ret = [];
+
+					if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
+						return "[object Object]";
+					}
+
+					dump.up();
+					keys = [];
+					for ( key in map ) {
+						keys.push( key );
+					}
+
+					// Some properties are not always enumerable on Error objects.
+					nonEnumerableProperties = [ "message", "name" ];
+					for ( i in nonEnumerableProperties ) {
+						key = nonEnumerableProperties[ i ];
+						if ( key in map && !( key in keys ) ) {
+							keys.push( key );
+						}
+					}
+					keys.sort();
+					for ( i = 0; i < keys.length; i++ ) {
+						key = keys[ i ];
+						val = map[ key ];
+						ret.push( dump.parse( key, "key" ) + ": " +
+							dump.parse( val, undefined, stack ) );
+					}
+					dump.down();
+					return join( "{", ret, "}" );
+				},
+				node: function( node ) {
+					var len, i, val,
+						open = dump.HTML ? "&lt;" : "<",
+						close = dump.HTML ? "&gt;" : ">",
+						tag = node.nodeName.toLowerCase(),
+						ret = open + tag,
+						attrs = node.attributes;
+
+					if ( attrs ) {
+						for ( i = 0, len = attrs.length; i < len; i++ ) {
+							val = attrs[ i ].nodeValue;
+
+							// IE6 includes all attributes in .attributes, even ones not explicitly
+							// set. Those have values like undefined, null, 0, false, "" or
+							// "inherit".
+							if ( val && val !== "inherit" ) {
+								ret += " " + attrs[ i ].nodeName + "=" +
+									dump.parse( val, "attribute" );
+							}
+						}
+					}
+					ret += close;
+
+					// Show content of TextNode or CDATASection
+					if ( node.nodeType === 3 || node.nodeType === 4 ) {
+						ret += node.nodeValue;
+					}
+
+					return ret + open + "/" + tag + close;
+				},
+
+				// function calls it internally, it's the arguments part of the function
+				functionArgs: function( fn ) {
+					var args,
+						l = fn.length;
+
+					if ( !l ) {
+						return "";
+					}
+
+					args = new Array( l );
+					while ( l-- ) {
+
+						// 97 is 'a'
+						args[ l ] = String.fromCharCode( 97 + l );
+					}
+					return " " + args.join( ", " ) + " ";
+				},
+				// object calls it internally, the key part of an item in a map
+				key: quote,
+				// function calls it internally, it's the content of the function
+				functionCode: "[code]",
+				// node calls it internally, it's an html attribute value
+				attribute: quote,
+				string: quote,
+				date: quote,
+				regexp: literal,
+				number: literal,
+				"boolean": literal
+			},
+			// if true, entities are escaped ( <, >, \t, space and \n )
+			HTML: false,
+			// indentation unit
+			indentChar: "  ",
+			// if true, items in a collection, are separated by a \n, else just a space.
+			multiline: true
+		};
+
+	return dump;
+}());
+
+// back compat
+QUnit.jsDump = QUnit.dump;
+
+// For browser, export only select globals
+if ( typeof window !== "undefined" ) {
+
+	// Deprecated
+	// Extend assert methods to QUnit and Global scope through Backwards compatibility
+	(function() {
+		var i,
+			assertions = Assert.prototype;
+
+		function applyCurrent( current ) {
+			return function() {
+				var assert = new Assert( QUnit.config.current );
+				current.apply( assert, arguments );
+			};
+		}
+
+		for ( i in assertions ) {
+			QUnit[ i ] = applyCurrent( assertions[ i ] );
+		}
+	})();
+
+	(function() {
+		var i, l,
+			keys = [
+				"test",
+				"module",
+				"expect",
+				"asyncTest",
+				"start",
+				"stop",
+				"ok",
+				"equal",
+				"notEqual",
+				"propEqual",
+				"notPropEqual",
+				"deepEqual",
+				"notDeepEqual",
+				"strictEqual",
+				"notStrictEqual",
+				"throws"
+			];
+
+		for ( i = 0, l = keys.length; i < l; i++ ) {
+			window[ keys[ i ] ] = QUnit[ keys[ i ] ];
+		}
+	})();
+
+	window.QUnit = QUnit;
+}
+
+// For nodejs
+if ( typeof module !== "undefined" && module && module.exports ) {
+	module.exports = QUnit;
+
+	// For consistency with CommonJS environments' exports
+	module.exports.QUnit = QUnit;
+}
+
+// For CommonJS with exports, but without module.exports, like Rhino
+if ( typeof exports !== "undefined" && exports ) {
+	exports.QUnit = QUnit;
+}
+
+// Get a reference to the global object, like window in browsers
+}( (function() {
+	return this;
+})() ));
+
+/*istanbul ignore next */
+// jscs:disable maximumLineLength
+/*
+ * 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() {
+	var hasOwn = Object.prototype.hasOwnProperty;
+
+	/*jshint eqeqeq:false, eqnull:true */
+	function diff( o, n ) {
+		var i,
+			ns = {},
+			os = {};
+
+		for ( i = 0; i < n.length; i++ ) {
+			if ( !hasOwn.call( ns, n[ i ] ) ) {
+				ns[ n[ i ] ] = {
+					rows: [],
+					o: null
+				};
+			}
+			ns[ n[ i ] ].rows.push( i );
+		}
+
+		for ( i = 0; i < o.length; i++ ) {
+			if ( !hasOwn.call( os, o[ i ] ) ) {
+				os[ o[ i ] ] = {
+					rows: [],
+					n: null
+				};
+			}
+			os[ o[ i ] ].rows.push( i );
+		}
+
+		for ( i in ns ) {
+			if ( hasOwn.call( ns, i ) ) {
+				if ( ns[ i ].rows.length === 1 && hasOwn.call( os, i ) && 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 ) {
+				for ( n = 0; n < out.o.length && out.o[ n ].text == null; n++ ) {
+					str += "<del>" + out.o[ n ] + oSpace[ n ] + "</del>";
+				}
+			}
+
+			for ( i = 0; i < out.n.length; i++ ) {
+				if ( out.n[ i ].text == null ) {
+					str += "<ins>" + out.n[ i ] + nSpace[ i ] + "</ins>";
+				} else {
+
+					// `pre` initialized at top of scope
+					pre = "";
+
+					for ( n = out.n[ i ].row + 1; n < out.o.length && out.o[ n ].text == null; n++ ) {
+						pre += "<del>" + out.o[ n ] + oSpace[ n ] + "</del>";
+					}
+					str += " " + out.n[ i ].text + nSpace[ i ] + pre;
+				}
+			}
+		}
+
+		return str;
+	};
+}());
+// jscs:enable
+
+(function() {
+
+// Deprecated QUnit.init - Ref #530
+// Re-initialize the configuration options
+QUnit.init = function() {
+	var tests, banner, result, qunit,
+		config = QUnit.config;
+
+	config.stats = { all: 0, bad: 0 };
+	config.moduleStats = { all: 0, bad: 0 };
+	config.started = 0;
+	config.updateRate = 1000;
+	config.blocking = false;
+	config.autostart = true;
+	config.autorun = false;
+	config.filter = "";
+	config.queue = [];
+
+	// Return on non-browser environments
+	// This is necessary to not break on node tests
+	if ( typeof window === "undefined" ) {
+		return;
+	}
+
+	qunit = id( "qunit" );
+	if ( qunit ) {
+		qunit.innerHTML =
+			"<h1 id='qunit-header'>" + escapeText( 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 />&#160;";
+	}
+};
+
+// Don't load the HTML Reporter on non-Browser environments
+if ( typeof window === "undefined" ) {
+	return;
+}
+
+var config = QUnit.config,
+	hasOwn = Object.prototype.hasOwnProperty,
+	defined = {
+		document: window.document !== undefined,
+		sessionStorage: (function() {
+			var x = "qunit-test-string";
+			try {
+				sessionStorage.setItem( x, x );
+				sessionStorage.removeItem( x );
+				return true;
+			} catch ( e ) {
+				return false;
+			}
+		}())
+	},
+	modulesList = [];
+
+/**
+* Escape text for attribute or text content.
+*/
+function escapeText( s ) {
+	if ( !s ) {
+		return "";
+	}
+	s = s + "";
+
+	// Both single quotes and double quotes (for attributes)
+	return s.replace( /['"<>&]/g, function( s ) {
+		switch ( s ) {
+		case "'":
+			return "&#039;";
+		case "\"":
+			return "&quot;";
+		case "<":
+			return "&lt;";
+		case ">":
+			return "&gt;";
+		case "&":
+			return "&amp;";
+		}
+	});
+}
+
+/**
+ * @param {HTMLElement} elem
+ * @param {string} type
+ * @param {Function} fn
+ */
+function addEvent( elem, type, fn ) {
+	if ( elem.addEventListener ) {
+
+		// Standards-based browsers
+		elem.addEventListener( type, fn, false );
+	} else if ( elem.attachEvent ) {
+
+		// support: IE <9
+		elem.attachEvent( "on" + type, fn );
+	}
+}
+
+/**
+ * @param {Array|NodeList} elems
+ * @param {string} type
+ * @param {Function} fn
+ */
+function addEvents( elems, type, fn ) {
+	var i = elems.length;
+	while ( i-- ) {
+		addEvent( elems[ i ], type, fn );
+	}
+}
+
+function hasClass( elem, name ) {
+	return ( " " + elem.className + " " ).indexOf( " " + name + " " ) >= 0;
+}
+
+function addClass( elem, name ) {
+	if ( !hasClass( elem, name ) ) {
+		elem.className += ( elem.className ? " " : "" ) + name;
+	}
+}
+
+function toggleClass( elem, name ) {
+	if ( hasClass( elem, name ) ) {
+		removeClass( elem, name );
+	} else {
+		addClass( elem, name );
+	}
+}
+
+function removeClass( elem, name ) {
+	var set = " " + elem.className + " ";
+
+	// Class name may appear multiple times
+	while ( set.indexOf( " " + name + " " ) >= 0 ) {
+		set = set.replace( " " + name + " ", " " );
+	}
+
+	// trim for prettiness
+	elem.className = typeof set.trim === "function" ? set.trim() : set.replace( /^\s+|\s+$/g, "" );
+}
+
+function id( name ) {
+	return defined.document && document.getElementById && document.getElementById( name );
+}
+
+function getUrlConfigHtml() {
+	var i, j, val,
+		escaped, escapedTooltip,
+		selection = false,
+		len = config.urlConfig.length,
+		urlConfigHtml = "";
+
+	for ( i = 0; i < len; i++ ) {
+		val = config.urlConfig[ i ];
+		if ( typeof val === "string" ) {
+			val = {
+				id: val,
+				label: val
+			};
+		}
+
+		escaped = escapeText( val.id );
+		escapedTooltip = escapeText( val.tooltip );
+
+		if ( config[ val.id ] === undefined ) {
+			config[ val.id ] = QUnit.urlParams[ val.id ];
+		}
+
+		if ( !val.value || typeof val.value === "string" ) {
+			urlConfigHtml += "<input id='qunit-urlconfig-" + escaped +
+				"' name='" + escaped + "' type='checkbox'" +
+				( val.value ? " value='" + escapeText( val.value ) + "'" : "" ) +
+				( config[ val.id ] ? " checked='checked'" : "" ) +
+				" title='" + escapedTooltip + "' /><label for='qunit-urlconfig-" + escaped +
+				"' title='" + escapedTooltip + "'>" + val.label + "</label>";
+		} else {
+			urlConfigHtml += "<label for='qunit-urlconfig-" + escaped +
+				"' title='" + escapedTooltip + "'>" + val.label +
+				": </label><select id='qunit-urlconfig-" + escaped +
+				"' name='" + escaped + "' title='" + escapedTooltip + "'><option></option>";
+
+			if ( QUnit.is( "array", val.value ) ) {
+				for ( j = 0; j < val.value.length; j++ ) {
+					escaped = escapeText( val.value[ j ] );
+					urlConfigHtml += "<option value='" + escaped + "'" +
+						( config[ val.id ] === val.value[ j ] ?
+							( selection = true ) && " selected='selected'" : "" ) +
+						">" + escaped + "</option>";
+				}
+			} else {
+				for ( j in val.value ) {
+					if ( hasOwn.call( val.value, j ) ) {
+						urlConfigHtml += "<option value='" + escapeText( j ) + "'" +
+							( config[ val.id ] === j ?
+								( selection = true ) && " selected='selected'" : "" ) +
+							">" + escapeText( val.value[ j ] ) + "</option>";
+					}
+				}
+			}
+			if ( config[ val.id ] && !selection ) {
+				escaped = escapeText( config[ val.id ] );
+				urlConfigHtml += "<option value='" + escaped +
+					"' selected='selected' disabled='disabled'>" + escaped + "</option>";
+			}
+			urlConfigHtml += "</select>";
+		}
+	}
+
+	return urlConfigHtml;
+}
+
+// Handle "click" events on toolbar checkboxes and "change" for select menus.
+// Updates the URL with the new state of `config.urlConfig` values.
+function toolbarChanged() {
+	var updatedUrl, value,
+		field = this,
+		params = {};
+
+	// Detect if field is a select menu or a checkbox
+	if ( "selectedIndex" in field ) {
+		value = field.options[ field.selectedIndex ].value || undefined;
+	} else {
+		value = field.checked ? ( field.defaultValue || true ) : undefined;
+	}
+
+	params[ field.name ] = value;
+	updatedUrl = setUrl( params );
+
+	if ( "hidepassed" === field.name && "replaceState" in window.history ) {
+		config[ field.name ] = value || false;
+		if ( value ) {
+			addClass( id( "qunit-tests" ), "hidepass" );
+		} else {
+			removeClass( id( "qunit-tests" ), "hidepass" );
+		}
+
+		// It is not necessary to refresh the whole page
+		window.history.replaceState( null, "", updatedUrl );
+	} else {
+		window.location = updatedUrl;
+	}
+}
+
+function setUrl( params ) {
+	var key,
+		querystring = "?";
+
+	params = QUnit.extend( QUnit.extend( {}, QUnit.urlParams ), params );
+
+	for ( key in params ) {
+		if ( hasOwn.call( params, key ) ) {
+			if ( params[ key ] === undefined ) {
+				continue;
+			}
+			querystring += encodeURIComponent( key );
+			if ( params[ key ] !== true ) {
+				querystring += "=" + encodeURIComponent( params[ key ] );
+			}
+			querystring += "&";
+		}
+	}
+	return location.protocol + "//" + location.host +
+		location.pathname + querystring.slice( 0, -1 );
+}
+
+function applyUrlParams() {
+	var selectBox = id( "qunit-modulefilter" ),
+		selection = decodeURIComponent( selectBox.options[ selectBox.selectedIndex ].value ),
+		filter = id( "qunit-filter-input" ).value;
+
+	window.location = setUrl({
+		module: ( selection === "" ) ? undefined : selection,
+		filter: ( filter === "" ) ? undefined : filter,
+
+		// Remove testId filter
+		testId: undefined
+	});
+}
+
+function toolbarUrlConfigContainer() {
+	var urlConfigContainer = document.createElement( "span" );
+
+	urlConfigContainer.innerHTML = getUrlConfigHtml();
+	addClass( urlConfigContainer, "qunit-url-config" );
+
+	// For oldIE support:
+	// * Add handlers to the individual elements instead of the container
+	// * Use "click" instead of "change" for checkboxes
+	addEvents( urlConfigContainer.getElementsByTagName( "input" ), "click", toolbarChanged );
+	addEvents( urlConfigContainer.getElementsByTagName( "select" ), "change", toolbarChanged );
+
+	return urlConfigContainer;
+}
+
+function toolbarLooseFilter() {
+	var filter = document.createElement( "form" ),
+		label = document.createElement( "label" ),
+		input = document.createElement( "input" ),
+		button = document.createElement( "button" );
+
+	addClass( filter, "qunit-filter" );
+
+	label.innerHTML = "Filter: ";
+
+	input.type = "text";
+	input.value = config.filter || "";
+	input.name = "filter";
+	input.id = "qunit-filter-input";
+
+	button.innerHTML = "Go";
+
+	label.appendChild( input );
+
+	filter.appendChild( label );
+	filter.appendChild( button );
+	addEvent( filter, "submit", function( ev ) {
+		applyUrlParams();
+
+		if ( ev && ev.preventDefault ) {
+			ev.preventDefault();
+		}
+
+		return false;
+	});
+
+	return filter;
+}
+
+function toolbarModuleFilterHtml() {
+	var i,
+		moduleFilterHtml = "";
+
+	if ( !modulesList.length ) {
+		return false;
+	}
+
+	modulesList.sort(function( a, b ) {
+		return a.localeCompare( b );
+	});
+
+	moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label>" +
+		"<select id='qunit-modulefilter' name='modulefilter'><option value='' " +
+		( QUnit.urlParams.module === undefined ? "selected='selected'" : "" ) +
+		">< All Modules ></option>";
+
+	for ( i = 0; i < modulesList.length; i++ ) {
+		moduleFilterHtml += "<option value='" +
+			escapeText( encodeURIComponent( modulesList[ i ] ) ) + "' " +
+			( QUnit.urlParams.module === modulesList[ i ] ? "selected='selected'" : "" ) +
+			">" + escapeText( modulesList[ i ] ) + "</option>";
+	}
+	moduleFilterHtml += "</select>";
+
+	return moduleFilterHtml;
+}
+
+function toolbarModuleFilter() {
+	var toolbar = id( "qunit-testrunner-toolbar" ),
+		moduleFilter = document.createElement( "span" ),
+		moduleFilterHtml = toolbarModuleFilterHtml();
+
+	if ( !toolbar || !moduleFilterHtml ) {
+		return false;
+	}
+
+	moduleFilter.setAttribute( "id", "qunit-modulefilter-container" );
+	moduleFilter.innerHTML = moduleFilterHtml;
+
+	addEvent( moduleFilter.lastChild, "change", applyUrlParams );
+
+	toolbar.appendChild( moduleFilter );
+}
+
+function appendToolbar() {
+	var toolbar = id( "qunit-testrunner-toolbar" );
+
+	if ( toolbar ) {
+		toolbar.appendChild( toolbarUrlConfigContainer() );
+		toolbar.appendChild( toolbarLooseFilter() );
+	}
+}
+
+function appendHeader() {
+	var header = id( "qunit-header" );
+
+	if ( header ) {
+		header.innerHTML = "<a href='" +
+			setUrl({ filter: undefined, module: undefined, testId: undefined }) +
+			"'>" + header.innerHTML + "</a> ";
+	}
+}
+
+function appendBanner() {
+	var banner = id( "qunit-banner" );
+
+	if ( banner ) {
+		banner.className = "";
+	}
+}
+
+function appendTestResults() {
+	var tests = id( "qunit-tests" ),
+		result = id( "qunit-testresult" );
+
+	if ( result ) {
+		result.parentNode.removeChild( result );
+	}
+
+	if ( tests ) {
+		tests.innerHTML = "";
+		result = document.createElement( "p" );
+		result.id = "qunit-testresult";
+		result.className = "result";
+		tests.parentNode.insertBefore( result, tests );
+		result.innerHTML = "Running...<br />&#160;";
+	}
+}
+
+function storeFixture() {
+	var fixture = id( "qunit-fixture" );
+	if ( fixture ) {
+		config.fixture = fixture.innerHTML;
+	}
+}
+
+function appendUserAgent() {
+	var userAgent = id( "qunit-userAgent" );
+	if ( userAgent ) {
+		userAgent.innerHTML = "";
+		userAgent.appendChild( document.createTextNode( navigator.userAgent ) );
+	}
+}
+
+function appendTestsList( modules ) {
+	var i, l, x, z, test, moduleObj;
+
+	for ( i = 0, l = modules.length; i < l; i++ ) {
+		moduleObj = modules[ i ];
+
+		if ( moduleObj.name ) {
+			modulesList.push( moduleObj.name );
+		}
+
+		for ( x = 0, z = moduleObj.tests.length; x < z; x++ ) {
+			test = moduleObj.tests[ x ];
+
+			appendTest( test.name, test.testId, moduleObj.name );
+		}
+	}
+}
+
+function appendTest( name, testId, moduleName ) {
+	var title, rerunTrigger, testBlock, assertList,
+		tests = id( "qunit-tests" );
+
+	if ( !tests ) {
+		return;
+	}
+
+	title = document.createElement( "strong" );
+	title.innerHTML = getNameHtml( name, moduleName );
+
+	rerunTrigger = document.createElement( "a" );
+	rerunTrigger.innerHTML = "Rerun";
+	rerunTrigger.href = setUrl({ testId: testId });
+
+	testBlock = document.createElement( "li" );
+	testBlock.appendChild( title );
+	testBlock.appendChild( rerunTrigger );
+	testBlock.id = "qunit-test-output-" + testId;
+
+	assertList = document.createElement( "ol" );
+	assertList.className = "qunit-assert-list";
+
+	testBlock.appendChild( assertList );
+
+	tests.appendChild( testBlock );
+}
+
+// HTML Reporter initialization and load
+QUnit.begin(function( details ) {
+	var qunit = id( "qunit" );
+
+	// Fixture is the only one necessary to run without the #qunit element
+	storeFixture();
+
+	if ( qunit ) {
+		qunit.innerHTML =
+			"<h1 id='qunit-header'>" + escapeText( document.title ) + "</h1>" +
+			"<h2 id='qunit-banner'></h2>" +
+			"<div id='qunit-testrunner-toolbar'></div>" +
+			"<h2 id='qunit-userAgent'></h2>" +
+			"<ol id='qunit-tests'></ol>";
+	}
+
+	appendHeader();
+	appendBanner();
+	appendTestResults();
+	appendUserAgent();
+	appendToolbar();
+	appendTestsList( details.modules );
+	toolbarModuleFilter();
+
+	if ( qunit && config.hidepassed ) {
+		addClass( qunit.lastChild, "hidepass" );
+	}
+});
+
+QUnit.done(function( details ) {
+	var i, key,
+		banner = id( "qunit-banner" ),
+		tests = id( "qunit-tests" ),
+		html = [
+			"Tests completed in ",
+			details.runtime,
+			" milliseconds.<br />",
+			"<span class='passed'>",
+			details.passed,
+			"</span> assertions of <span class='total'>",
+			details.total,
+			"</span> passed, <span class='failed'>",
+			details.failed,
+			"</span> failed."
+		].join( "" );
+
+	if ( banner ) {
+		banner.className = details.failed ? "qunit-fail" : "qunit-pass";
+	}
+
+	if ( tests ) {
+		id( "qunit-testresult" ).innerHTML = html;
+	}
+
+	if ( config.altertitle && defined.document && 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 = [
+			( details.failed ? "\u2716" : "\u2714" ),
+			document.title.replace( /^[\u2714\u2716] /i, "" )
+		].join( " " );
+	}
+
+	// clear own sessionStorage items if all tests passed
+	if ( config.reorder && defined.sessionStorage && details.failed === 0 ) {
+		for ( i = 0; i < sessionStorage.length; i++ ) {
+			key = sessionStorage.key( i++ );
+			if ( key.indexOf( "qunit-test-" ) === 0 ) {
+				sessionStorage.removeItem( key );
+			}
+		}
+	}
+
+	// scroll back to top to show results
+	if ( config.scrolltop && window.scrollTo ) {
+		window.scrollTo( 0, 0 );
+	}
+});
+
+function getNameHtml( name, module ) {
+	var nameHtml = "";
+
+	if ( module ) {
+		nameHtml = "<span class='module-name'>" + escapeText( module ) + "</span>: ";
+	}
+
+	nameHtml += "<span class='test-name'>" + escapeText( name ) + "</span>";
+
+	return nameHtml;
+}
+
+QUnit.testStart(function( details ) {
+	var running, testBlock;
+
+	testBlock = id( "qunit-test-output-" + details.testId );
+	if ( testBlock ) {
+		testBlock.className = "running";
+	} else {
+
+		// Report later registered tests
+		appendTest( details.name, details.testId, details.module );
+	}
+
+	running = id( "qunit-testresult" );
+	if ( running ) {
+		running.innerHTML = "Running: <br />" + getNameHtml( details.name, details.module );
+	}
+
+});
+
+QUnit.log(function( details ) {
+	var assertList, assertLi,
+		message, expected, actual,
+		testItem = id( "qunit-test-output-" + details.testId );
+
+	if ( !testItem ) {
+		return;
+	}
+
+	message = escapeText( details.message ) || ( details.result ? "okay" : "failed" );
+	message = "<span class='test-message'>" + message + "</span>";
+	message += "<span class='runtime'>@ " + details.runtime + " ms</span>";
+
+	// pushFailure doesn't provide details.expected
+	// when it calls, it's implicit to also not show expected and diff stuff
+	// Also, we need to check details.expected existence, as it can exist and be undefined
+	if ( !details.result && hasOwn.call( details, "expected" ) ) {
+		expected = escapeText( QUnit.dump.parse( details.expected ) );
+		actual = escapeText( QUnit.dump.parse( details.actual ) );
+		message += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" +
+			expected +
+			"</pre></td></tr>";
+
+		if ( actual !== expected ) {
+			message += "<tr class='test-actual'><th>Result: </th><td><pre>" +
+				actual + "</pre></td></tr>" +
+				"<tr class='test-diff'><th>Diff: </th><td><pre>" +
+				QUnit.diff( expected, actual ) + "</pre></td></tr>";
+		}
+
+		if ( details.source ) {
+			message += "<tr class='test-source'><th>Source: </th><td><pre>" +
+				escapeText( details.source ) + "</pre></td></tr>";
+		}
+
+		message += "</table>";
+
+	// this occours when pushFailure is set and we have an extracted stack trace
+	} else if ( !details.result && details.source ) {
+		message += "<table>" +
+			"<tr class='test-source'><th>Source: </th><td><pre>" +
+			escapeText( details.source ) + "</pre></td></tr>" +
+			"</table>";
+	}
+
+	assertList = testItem.getElementsByTagName( "ol" )[ 0 ];
+
+	assertLi = document.createElement( "li" );
+	assertLi.className = details.result ? "pass" : "fail";
+	assertLi.innerHTML = message;
+	assertList.appendChild( assertLi );
+});
+
+QUnit.testDone(function( details ) {
+	var testTitle, time, testItem, assertList,
+		good, bad, testCounts, skipped,
+		tests = id( "qunit-tests" );
+
+	if ( !tests ) {
+		return;
+	}
+
+	testItem = id( "qunit-test-output-" + details.testId );
+
+	assertList = testItem.getElementsByTagName( "ol" )[ 0 ];
+
+	good = details.passed;
+	bad = details.failed;
+
+	// store result when possible
+	if ( config.reorder && defined.sessionStorage ) {
+		if ( bad ) {
+			sessionStorage.setItem( "qunit-test-" + details.module + "-" + details.name, bad );
+		} else {
+			sessionStorage.removeItem( "qunit-test-" + details.module + "-" + details.name );
+		}
+	}
+
+	if ( bad === 0 ) {
+		addClass( assertList, "qunit-collapsed" );
+	}
+
+	// testItem.firstChild is the test name
+	testTitle = testItem.firstChild;
+
+	testCounts = bad ?
+		"<b class='failed'>" + bad + "</b>, " + "<b class='passed'>" + good + "</b>, " :
+		"";
+
+	testTitle.innerHTML += " <b class='counts'>(" + testCounts +
+		details.assertions.length + ")</b>";
+
+	if ( details.skipped ) {
+		testItem.className = "skipped";
+		skipped = document.createElement( "em" );
+		skipped.className = "qunit-skipped-label";
+		skipped.innerHTML = "skipped";
+		testItem.insertBefore( skipped, testTitle );
+	} else {
+		addEvent( testTitle, "click", function() {
+			toggleClass( assertList, "qunit-collapsed" );
+		});
+
+		testItem.className = bad ? "fail" : "pass";
+
+		time = document.createElement( "span" );
+		time.className = "runtime";
+		time.innerHTML = details.runtime + " ms";
+		testItem.insertBefore( time, assertList );
+	}
+});
+
+if ( !defined.document || document.readyState === "complete" ) {
+	config.pageLoaded = true;
+	config.autorun = true;
+}
+
+if ( defined.document ) {
+	addEvent( window, "load", QUnit.load );
+}
+
+})();
diff --git a/js/qunit.js b/js/qunit.js
new file mode 120000
index 000000000..93b757b98
--- /dev/null
+++ b/js/qunit.js
@@ -0,0 +1 @@
+qunit-1.17.1.js
\ No newline at end of file
diff --git a/js/t/example.js b/js/t/example.js
new file mode 100644
index 000000000..fbe8df91a
--- /dev/null
+++ b/js/t/example.js
@@ -0,0 +1,21 @@
+// See http://api.qunitjs.com/ for documentation of available methods
+// (especially the »asserts«).
+
+// Run these tests in your browser by opening the URL
+// …/controller.pl?action=JSTests/run
+
+QUnit.test("example tests", function( assert ) {
+  // Simple true/false tests:
+  assert.ok(1 == "1", "Integer 1 equals string 1");
+
+  // Comparing objects:
+  var actual   = { chunky: "bacon" };
+  var expected = { chunky: "bacon" };
+  assert.deepEqual(actual, expected, "Objects can have equal value");
+
+  // Test if an exception is thrown:
+  assert.throws(function() { throw "Boom!"; });
+
+  // If you want to see how something fails uncomment this:
+  // assert.deepEqual({ we: "are not" }, { in: "Kansas anymore" });
+});
diff --git a/locale/de/all b/locale/de/all
index 6127e1429..cbe0fa382 100755
--- a/locale/de/all
+++ b/locale/de/all
@@ -1706,6 +1706,7 @@ $self->{texts} = {
   'Only due follow-ups'         => 'Nur f&auml;llige Wiedervorlagen',
   'Only groups that have been configured for the client the user logs in to will be considered.' => 'Allerdings werden nur diejenigen Gruppen herangezogen, die für den Mandanten konfiguriert sind.',
   'Only list customer\'s projects in sales records' => 'Nur Projekte des Kunden in Verkaufsbelegen anzeigen',
+  'Only run tests from this file:' => 'Nur Tests aus dieser Datei ausführen:',
   'Only shown in item mode'     => 'werden nur im Artikelmodus angezeigt',
   'Oops. No valid action found to dispatch. Please report this case to the kivitendo team.' => 'Ups. Es wurde keine gültige Funktion zum Aufrufen gefunden. Bitte berichten Sie diesen Fall den kivitendo-Entwicklern.',
   'Open'                        => 'Offen',
@@ -2112,7 +2113,9 @@ $self->{texts} = {
   'Row was linked to another record' => 'Zeile wurde über einen anderen Beleg verlinkt',
   'Row was source for current record' => 'Zeile war Quelle für aktuellen Beleg',
   'Rule Details'                => 'Regel Details',
+  'Run JavaScript unit tests'   => 'JavaScript-Unit-Tests ausführen',
   'Run at'                      => 'Ausgeführt um',
+  'Run tests'                   => 'Tests ausführen',
   'SAVED'                       => 'Gespeichert',
   'SAVED FOR DUNNING'           => 'Gespeichert',
   'SCREENED'                    => 'Angezeigt',
@@ -3285,6 +3288,7 @@ $self->{texts} = {
   'yearly'                      => 'jährlich',
   'yes'                         => 'ja',
   'you can find professional help.' => 'finden Sie professionelle Hilfe.',
+  '– all available test files –' => '– alle verfügbaren Testdateien –',
 };
 
 1;
diff --git a/templates/webpages/js_tests/run.html b/templates/webpages/js_tests/run.html
new file mode 100644
index 000000000..aba0736e3
--- /dev/null
+++ b/templates/webpages/js_tests/run.html
@@ -0,0 +1,28 @@
+[%- USE LxERP -%][%- USE L -%]
+<div>
+ <p>
+  [% LxERP.t8("Only run tests from this file:") %]
+  [% opts = [ [ '', LxERP.t8("– all available test files –") ] ];
+     opts = opts.import(SELF.all_scripts);
+     L.select_tag('file_filter', opts, default=FORM.file_filter) %]
+  [% L.button_tag('run_tests_from();', LxERP.t8('Run tests'), id='run_js_tests_button') %]
+ </p>
+
+ <hr>
+</div>
+
+<script type="text/javascript">
+  function run_tests_from() {
+    window.location.href = "controller.pl?action=JSTests/run&file_filter=" + encodeURIComponent($('#file_filter').val());
+    return false;
+  };
+
+  $('#file_filter').change(run_tests_from);
+</script>
+
+<div id="qunit"></div>
+<div id="qunit-fixture"></div>
+<script src="js/qunit.js"></script>
+[% FOREACH script = SELF.scripts_to_run %]
+  <script src="[% script %]"></script>
+[% END %]
-- 
2.20.1