Add QUnit to the third party directory

third_party/qunit/src/qunit.js

+/*!
+ * QUnit 1.14.0
+ * http://qunitjs.com/
+ *
+ * Copyright 2013 jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2014-01-31T16:40Z
+ */
+
+(function( window ) {
+
+var QUnit,
+  assert,
+  config,
+  onErrorFnPrev,
+  testId = 0,
+  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,
+  setTimeout = window.setTimeout,
+  clearTimeout = window.clearTimeout,
+  defined = {
+    document: typeof window.document !== "undefined",
+    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;
+      }
+    }())
+  },
+  /**
+   * 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 ) {
+    // Grunt 0.3.x uses an older version of jshint that still has jshint/jshint#392.
+    /*jshint newcap: false */
+    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;
+  };
+
+
+// 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.currentModuleTestEnvironment = testEnvironment;
+    config.modules[name] = true;
+  },
+
+  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,
+      nameHtml = "<span class='test-name'>" + escapeText( testName ) + "</span>";
+
+    if ( arguments.length === 2 ) {
+      callback = expected;
+      expected = null;
+    }
+
+    if ( config.currentModule ) {
+      nameHtml = "<span class='module-name'>" + escapeText( config.currentModule ) + "</span>: " + nameHtml;
+    }
+
+    test = new Test({
+      nameHtml: nameHtml,
+      testName: testName,
+      expected: expected,
+      async: async,
+      callback: callback,
+      module: config.currentModule,
+      moduleTestEnvironment: config.currentModuleTestEnvironment,
+      stack: sourceFromStacktrace( 2 )
+    });
+
+    if ( !validTest( test ) ) {
+      return;
+    }
+
+    test.queue();
+  },
+
+  // 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) {
+      config.current.expected = asserts;
+    } else {
+      return config.current.expected;
+    }
+  },
+
+  start: function( count ) {
+    // QUnit hasn't been initialized yet.
+    // Note: RequireJS (et al) may delay onLoad
+    if ( config.semaphore === undefined ) {
+      QUnit.begin(function() {
+        // This is triggered at the top of QUnit.load, push start() to the event loop, to allow QUnit.load to finish first
+        setTimeout(function() {
+          QUnit.start( count );
+        });
+      });
+      return;
+    }
+
+    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;
+      QUnit.pushFailure( "Called start() while already started (QUnit.config.semaphore was 0 already)", null, sourceFromStacktrace(2) );
+      return;
+    }
+    // A slight delay, to avoid any current callbacks
+    if ( defined.setTimeout ) {
+      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 = setTimeout(function() {
+        QUnit.ok( false, "Test timed out" );
+        config.semaphore = 1;
+        QUnit.start();
+      }, config.testTimeout );
+    }
+  }
+};
+
+// We use the prototype to distinguish between properties that should
+// be exposed as globals (and in exports) and those that shouldn't
+(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,
+
+  // 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: "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: {},
+
+  // logging callback queues
+  begin: [],
+  done: [],
+  log: [],
+  testStart: [],
+  testDone: [],
+  moduleStart: [],
+  moduleDone: []
+};
+
+// 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 ];
+      }
+    }
+  }
+
+  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 = [];
+  if ( urlParams.testNumber ) {
+
+    // Ensure that urlParams.testNumber is an array
+    urlParams.testNumber = [].concat( urlParams.testNumber );
+    for ( i = 0; i < urlParams.testNumber.length; i++ ) {
+      current = urlParams.testNumber[ i ];
+      config.testNumber.push( parseInt( current, 10 ) );
+    }
+  }
+
+  // Figure out if we're running the tests from a server or not
+  QUnit.isLocal = location.protocol === "file:";
+}());
+
+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: 1
+    });
+
+    var tests, banner, result,
+      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/>&nbsp;";
+    }
+  },
+
+  // 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
+  */
+  reset: function() {
+    var fixture = id( "qunit-fixture" );
+    if ( fixture ) {
+      fixture.innerHTML = config.fixture;
+    }
+  },
+
+  // 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;
+  },
+
+  push: function( result, actual, expected, message ) {
+    if ( !config.current ) {
+      throw new Error( "assertion outside test context, was " + sourceFromStacktrace() );
+    }
+
+    var output, source,
+      details = {
+        module: config.current.module,
+        name: config.current.testName,
+        result: result,
+        message: message,
+        actual: actual,
+        expected: expected
+      };
+
+    message = escapeText( message ) || ( result ? "okay" : "failed" );
+    message = "<span class='test-message'>" + message + "</span>";
+    output = message;
+
+    if ( !result ) {
+      expected = escapeText( QUnit.jsDump.parse(expected) );
+      actual = escapeText( 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>" + escapeText( 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 = {
+        module: config.current.module,
+        name: config.current.testName,
+        result: false,
+        message: message
+      };
+
+    message = escapeText( 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>" + escapeText( actual ) + "</pre></td></tr>";
+    }
+
+    if ( source ) {
+      details.source = source;
+      output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeText( 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 ) ) {
+        querystring += encodeURIComponent( key ) + "=" +
+          encodeURIComponent( params[ key ] ) + "&";
+      }
+    }
+    return window.location.protocol + "//" + window.location.host +
+      window.location.pathname + querystring.slice( 0, -1 );
+  },
+
+  extend: extend,
+  id: id,
+  addEvent: addEvent,
+  addClass: addClass,
+  hasClass: hasClass,
+  removeClass: removeClass
+  // 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, runtime }
+  testDone: registerLoggingCallback( "testDone" ),
+
+  // moduleStart: { name }
+  moduleStart: registerLoggingCallback( "moduleStart" ),
+
+  // moduleDone: { name, failed, passed, total }
+  moduleDone: registerLoggingCallback( "moduleDone" )
+});
+
+if ( !defined.document || document.readyState === "complete" ) {
+  config.autorun = true;
+}
+
+QUnit.load = function() {
+  runLoggingCallbacks( "begin", QUnit, {} );
+
+  // Initialize the config, saving the execution queue
+  var banner, filter, i, j, label, len, main, ol, toolbar, val, selection,
+    urlConfigContainer, moduleFilter, userAgent,
+    numModules = 0,
+    moduleNames = [],
+    moduleFilterHtml = "",
+    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
+      };
+    }
+    config[ val.id ] = QUnit.urlParams[ val.id ];
+    if ( !val.value || typeof val.value === "string" ) {
+      urlConfigHtml += "<input id='qunit-urlconfig-" + escapeText( val.id ) +
+        "' name='" + escapeText( val.id ) +
+        "' type='checkbox'" +
+        ( val.value ? " value='" + escapeText( val.value ) + "'" : "" ) +
+        ( config[ val.id ] ? " checked='checked'" : "" ) +
+        " title='" + escapeText( val.tooltip ) +
+        "'><label for='qunit-urlconfig-" + escapeText( val.id ) +
+        "' title='" + escapeText( val.tooltip ) + "'>" + val.label + "</label>";
+    } else {
+      urlConfigHtml += "<label for='qunit-urlconfig-" + escapeText( val.id ) +
+        "' title='" + escapeText( val.tooltip ) +
+        "'>" + val.label +
+        ": </label><select id='qunit-urlconfig-" + escapeText( val.id ) +
+        "' name='" + escapeText( val.id ) +
+        "' title='" + escapeText( val.tooltip ) +
+        "'><option></option>";
+      selection = false;
+      if ( QUnit.is( "array", val.value ) ) {
+        for ( j = 0; j < val.value.length; j++ ) {
+          urlConfigHtml += "<option value='" + escapeText( val.value[j] ) + "'" +
+            ( config[ val.id ] === val.value[j] ?
+              (selection = true) && " selected='selected'" :
+              "" ) +
+            ">" + escapeText( val.value[j] ) + "</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 ) {
+        urlConfigHtml += "<option value='" + escapeText( config[ val.id ] ) +
+          "' selected='selected' disabled='disabled'>" +
+          escapeText( config[ val.id ] ) +
+          "</option>";
+      }
+      urlConfigHtml += "</select>";
+    }
+  }
+  for ( i in config.modules ) {
+    if ( config.modules.hasOwnProperty( i ) ) {
+      moduleNames.push(i);
+    }
+  }
+  numModules = moduleNames.length;
+  moduleNames.sort( function( a, b ) {
+    return a.localeCompare( b );
+  });
+  moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label><select id='qunit-modulefilter' name='modulefilter'><option value='' " +
+    ( config.module === undefined  ? "selected='selected'" : "" ) +
+    ">< All Modules ></option>";
+
+
+  for ( i = 0; i < numModules; i++) {
+      moduleFilterHtml += "<option value='" + escapeText( encodeURIComponent(moduleNames[i]) ) + "' " +
+        ( config.module === moduleNames[i] ? "selected='selected'" : "" ) +
+        ">" + escapeText(moduleNames[i]) + "</option>";
+  }
+  moduleFilterHtml += "</select>";
+
+  // `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 = id( "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 = id( "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 assertions that fail. Stored in sessionStorage." );
+    label.innerHTML = "Hide passed tests";
+    toolbar.appendChild( label );
+
+    urlConfigContainer = document.createElement("span");
+    urlConfigContainer.innerHTML = urlConfigHtml;
+    // For oldIE support:
+    // * Add handlers to the individual elements instead of the container
+    // * Use "click" instead of "change" for checkboxes
+    // * Fallback from event.target to event.srcElement
+    addEvents( urlConfigContainer.getElementsByTagName("input"), "click", function( event ) {
+      var params = {},
+        target = event.target || event.srcElement;
+      params[ target.name ] = target.checked ?
+        target.defaultValue || true :
+        undefined;
+      window.location = QUnit.url( params );
+    });
+    addEvents( urlConfigContainer.getElementsByTagName("select"), "change", function( event ) {
+      var params = {},
+        target = event.target || event.srcElement;
+      params[ target.name ] = target.options[ target.selectedIndex ].value || undefined;
+      window.location = QUnit.url( params );
+    });
+    toolbar.appendChild( urlConfigContainer );
+
+    if (numModules > 1) {
+      moduleFilter = document.createElement( "span" );
+      moduleFilter.setAttribute( "id", "qunit-modulefilter-container" );
+      moduleFilter.innerHTML = moduleFilterHtml;
+      addEvent( moduleFilter.lastChild, "change", function() {
+        var selectBox = moduleFilter.getElementsByTagName("select")[0],
+          selectedModule = decodeURIComponent(selectBox.options[selectBox.selectedIndex].value);
+
+        window.location = QUnit.url({
+          module: ( selectedModule === "" ) ? undefined : selectedModule,
+          // Remove any existing filters
+          filter: undefined,
+          testNumber: undefined
+        });
+      });
+      toolbar.appendChild(moduleFilter);
+    }
+  }
+
+  // `main` initialized at top of scope
+  main = id( "qunit-fixture" );
+  if ( main ) {
+    config.fixture = main.innerHTML;
+  }
+
+  if ( config.autostart ) {
+    QUnit.start();
+  }
+};
+
+if ( defined.document ) {
+  addEvent( window, "load", QUnit.load );
+}
+
+// `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: validTest } ) );
+    }
+    return false;
+  }
+
+  return ret;
+};
+
+function done() {
+  config.autorun = true;
+
+  // Log the last module results
+  if ( config.previousModule ) {
+    runLoggingCallbacks( "moduleDone", QUnit, {
+      name: config.previousModule,
+      failed: config.moduleStats.bad,
+      passed: config.moduleStats.all - config.moduleStats.bad,
+      total: config.moduleStats.all
+    });
+  }
+  delete config.previousModule;
+
+  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> assertions 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 && 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 = [
+      ( 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 );
+      }
+    }
+  }
+
+  // scroll back to top to show results
+  if ( config.scrolltop && window.scrollTo ) {
+    window.scrollTo(0, 0);
+  }
+
+  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();
+
+  // Internally-generated tests are always valid
+  if ( test.callback && test.callback.validTest === validTest ) {
+    delete test.callback.validTest;
+    return true;
+  }
+
+  if ( config.testNumber.length > 0 ) {
+    if ( inArray( test.testNumber, config.testNumber ) < 0 ) {
+      return false;
+    }
+  }
+
+  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;
+
+  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 );
+  }
+}
+
+/**
+ * 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;";
+    }
+  });
+}
+
+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 {
+      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 ) {
+      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 ) {
+  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 {
+          a[ prop ] = b[ prop ];
+        }
+      }
+    }
+  }
+
+  return a;
+}
+
+/**
+ * @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 );
+  } else {
+
+    // Caller must ensure support for event listeners is present
+    throw new Error( "addEvent() was called in a context without event listener support" );
+  }
+}
+
+/**
+ * @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 + " ") > -1;
+}
+
+function addClass( elem, name ) {
+  if ( !hasClass( elem, name ) ) {
+    elem.className += (elem.className ? " " : "") + name;
+  }
+}
+
+function removeClass( elem, name ) {
+  var set = " " + elem.className + " ";
+  // Class name may appear multiple times
+  while ( set.indexOf(" " + name + " ") > -1 ) {
+    set = set.replace(" " + name + " " , " ");
+  }
+  // If possible, trim it for prettiness, but not necessarily
+  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 registerLoggingCallback( key ) {
+  return function( callback ) {
+    config[key].push( callback );
+  };
+}
+
+// Supports deprecated method of completely overwriting logging callbacks
+function runLoggingCallbacks( key, scope, args ) {
+  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 );
+    }
+  }
+}
+
+// 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 ) {
+  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.nameHtml;
+
+      // `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 (
+      // 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", 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
+      });
+    }
+
+    config.current = this;
+
+    this.testEnvironment = extend({
+      setup: function() {},
+      teardown: function() {}
+    }, this.moduleTestEnvironment );
+
+    this.started = +new Date();
+    runLoggingCallbacks( "testStart", QUnit, {
+      name: this.testName,
+      module: this.module
+    });
+
+    /*jshint camelcase:false */
+
+
+    /**
+     * Expose the current test environment.
+     *
+     * @deprecated since 1.12.0: Use QUnit.config.current.testEnvironment instead.
+     */
+    QUnit.current_testEnvironment = this.testEnvironment;
+
+    /*jshint camelcase:true */
+
+    if ( !config.pollution ) {
+      saveGlobal();
+    }
+    if ( config.notrycatch ) {
+      this.testEnvironment.setup.call( this.testEnvironment, QUnit.assert );
+      return;
+    }
+    try {
+      this.testEnvironment.setup.call( this.testEnvironment, QUnit.assert );
+    } catch( e ) {
+      QUnit.pushFailure( "Setup failed on " + this.testName + ": " + ( e.message || e ), extractStacktrace( e, 1 ) );
+    }
+  },
+  run: function() {
+    config.current = this;
+
+    var running = id( "qunit-testresult" );
+
+    if ( running ) {
+      running.innerHTML = "Running: <br/>" + this.nameHtml;
+    }
+
+    if ( this.async ) {
+      QUnit.stop();
+    }
+
+    this.callbackStarted = +new Date();
+
+    if ( config.notrycatch ) {
+      this.callback.call( this.testEnvironment, QUnit.assert );
+      this.callbackRuntime = +new Date() - this.callbackStarted;
+      return;
+    }
+
+    try {
+      this.callback.call( this.testEnvironment, QUnit.assert );
+      this.callbackRuntime = +new Date() - this.callbackStarted;
+    } catch( e ) {
+      this.callbackRuntime = +new Date() - this.callbackStarted;
+
+      QUnit.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();
+      }
+    }
+  },
+  teardown: function() {
+    config.current = this;
+    if ( config.notrycatch ) {
+      if ( typeof this.callbackRuntime === "undefined" ) {
+        this.callbackRuntime = +new Date() - this.callbackStarted;
+      }
+      this.testEnvironment.teardown.call( this.testEnvironment, QUnit.assert );
+      return;
+    } else {
+      try {
+        this.testEnvironment.teardown.call( this.testEnvironment, QUnit.assert );
+      } catch( e ) {
+        QUnit.pushFailure( "Teardown failed on " + this.testName + ": " + ( e.message || e ), 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 i, assertion, a, b, time, li, ol,
+      test = this,
+      good = 0,
+      bad = 0,
+      tests = id( "qunit-tests" );
+
+    this.runtime = +new Date() - this.started;
+    config.stats.all += this.assertions.length;
+    config.moduleStats.all += this.assertions.length;
+
+    if ( tests ) {
+      ol = document.createElement( "ol" );
+      ol.className = "qunit-assert-list";
+
+      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 ) {
+        addClass( ol, "qunit-collapsed" );
+      }
+
+      // `b` initialized at top of scope
+      b = document.createElement( "strong" );
+      b.innerHTML = this.nameHtml + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";
+
+      addEvent(b, "click", function() {
+        var next = b.parentNode.lastChild,
+          collapsed = hasClass( next, "qunit-collapsed" );
+        ( collapsed ? removeClass : addClass )( next, "qunit-collapsed" );
+      });
+
+      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 });
+        }
+      });
+
+      // `time` initialized at top of scope
+      time = document.createElement( "span" );
+      time.className = "runtime";
+      time.innerHTML = this.runtime + " ms";
+
+      // `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( time );
+      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,
+      runtime: this.runtime,
+      // DEPRECATED: this property will be removed in 2.0.0, use runtime instead
+      duration: this.runtime
+    });
+
+    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 );
+    }
+  }
+};
+
+// `assert` initialized at top of scope
+// Assert helpers
+// All of these must either call QUnit.push() or manually do:
+// - runLoggingCallbacks( "log", .. );
+// - config.current.assertions.push({ .. });
+assert = 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;
+    msg = msg || ( result ? "okay" : "failed" );
+
+    var source,
+      details = {
+        module: config.current.module,
+        name: config.current.testName,
+        result: result,
+        message: msg
+      };
+
+    msg = "<span class='test-message'>" + escapeText( msg ) + "</span>";
+
+    if ( !result ) {
+      source = sourceFromStacktrace( 2 );
+      if ( source ) {
+        details.source = source;
+        msg += "<table><tr class='test-source'><th>Source: </th><td><pre>" +
+          escapeText( 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 ) {
+    /*jshint eqeqeq:false */
+    QUnit.push( expected == actual, actual, expected, message );
+  },
+
+  /**
+   * @name notEqual
+   * @function
+   */
+  notEqual: function( actual, expected, message ) {
+    /*jshint eqeqeq:false */
+    QUnit.push( expected != actual, actual, expected, message );
+  },
+
+  /**
+   * @name propEqual
+   * @function
+   */
+  propEqual: function( actual, expected, message ) {
+    actual = objectValues(actual);
+    expected = objectValues(expected);
+    QUnit.push( QUnit.equiv(actual, expected), actual, expected, message );
+  },
+
+  /**
+   * @name notPropEqual
+   * @function
+   */
+  notPropEqual: function( actual, expected, message ) {
+    actual = objectValues(actual);
+    expected = objectValues(expected);
+    QUnit.push( !QUnit.equiv(actual, expected), 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,
+      expectedOutput = expected,
+      ok = false;
+
+    // 'expected' is optional
+    if ( !message && 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;
+        expectedOutput = null;
+
+      // expected is an Error object
+      } else if ( expected instanceof Error ) {
+        ok = actual instanceof Error &&
+           actual.name === expected.name &&
+           actual.message === expected.message;
+
+      // expected is a regexp
+      } else if ( QUnit.objectType( expected ) === "regexp" ) {
+        ok = expected.test( errorString( actual ) );
+
+      // expected is a string
+      } else if ( QUnit.objectType( expected ) === "string" ) {
+        ok = expected === errorString( 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 ) {
+        expectedOutput = null;
+        ok = true;
+      }
+
+      QUnit.push( ok, actual, expectedOutput, message );
+    } else {
+      QUnit.pushFailure( message, null, "No exception was thrown." );
+    }
+  }
+};
+
+/**
+ * @deprecated since 1.8.0
+ * Kept assertion helpers in root for backwards compatibility.
+ */
+extend( QUnit.constructor.prototype, assert );
+
+/**
+ * @deprecated since 1.9.0
+ * Kept to avoid TypeErrors for undefined methods.
+ */
+QUnit.constructor.prototype.raises = function() {
+  QUnit.push( false, false, false, "QUnit.raises has been deprecated since 2012 (fad3c1ea), use QUnit.throws instead" );
+};
+
+/**
+ * @deprecated since 1.0.0, replaced with error pushes since 1.3.0
+ * Kept to avoid TypeErrors for undefined methods.
+ */
+QUnit.constructor.prototype.equals = function() {
+  QUnit.push( false, false, false, "QUnit.equals has been deprecated since 2009 (e88049a0), use QUnit.equal instead" );
+};
+QUnit.constructor.prototype.same = function() {
+  QUnit.push( false, false, false, "QUnit.same has been deprecated since 2009 (e88049a0), use QUnit.deepEqual instead" );
+};
+
+// 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 */
+      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) ) {
+        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] ) && innerEquiv.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 = {
+      // type is used mostly internally, you can fix a (custom)type in advance
+      parse: function( obj, type, stack ) {
+        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) + ")";
+        }
+        if ( type === "function" )  {
+          stack.push( obj );
+          res = parser.call( this, obj, stack );
+          stack.pop();
+          return res;
+        }
+        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 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 ? "&nbsp;" : " ";
+      },
+      // 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, "&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: 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, QUnit.jsDump.parse( fn, "functionArgs" ), "){" ].join( "" );
+          return join( ret, QUnit.jsDump.parse(fn,"functionCode" ), "}" );
+        },
+        array: array,
+        nodelist: array,
+        "arguments": array,
+        object: function( map, stack ) {
+          /*jshint forin:false */
+          var ret = [ ], keys, key, val, i;
+          QUnit.jsDump.up();
+          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 len, i, val,
+            open = QUnit.jsDump.HTML ? "&lt;" : "<",
+            close = QUnit.jsDump.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 + "=" + QUnit.jsDump.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 jsDump;
+}());
+
+/*
+ * 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() {
+  /*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;
+  };
+}());
+
+// For browser, export only select globals
+if ( typeof window !== "undefined" ) {
+  extend( window, QUnit.constructor.prototype );
+  window.QUnit = QUnit;
+}
+
+// For CommonJS environments, export everything
+if ( typeof module !== "undefined" && module.exports ) {
+  module.exports = QUnit;
+}
+
+
+// Get a reference to the global object, like window in browsers
+}( (function() {
+  return this;
+})() ));