text: /**
  
   * QUnit v1.12.0 - A JavaScript Unit Testing Framework
  
   *
  
   * http://qunitjs.com
  
   *
  
   * Copyright 2013 jQuery Foundation and other contributors
  
   * Released under the MIT license.
  
   * https://jquery.org/license/
  
   */
  
  
  
  (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,
  
    defined = {
  
      setTimeout: typeof window.setTimeout !== "undefined",
  
      sessionStorage: (function() {
  
        var x = "qunit-test-string";
  
        try {
  
          sessionStorage.setItem( x, x );
  
          sessionStorage.removeItem( x );
  
          return true;
  
        } catch( e ) {
  
          return false;
  
        }
  
      }())
  
    },
  
    /**
  
     * 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;
  
    };
  
  
  
  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,
  
        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 );
  
      }
  
    }
  
  };
  
  
  
  // 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 );
  
      }
  
    }
  
  };
  
  
  
  // `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({ .. });
  
  // We attach it to the QUnit object *after* we expose the public API,
  
  // otherwise `assert` will become a global variable in browsers (#341).
  
  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 ( 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 a regexp
  
        } else if ( QUnit.objectType( expected ) === "regexp" ) {
  
          ok = expected.test( 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, assert );
  
  
  
  /**
  
   * @deprecated since 1.9.0
  
   * Kept root "raises()" for backwards compatibility.
  
   * (Note that we don't introduce assert.raises).
  
   */
  
  QUnit.raises = assert[ "throws" ];
  
  
  
  /**
  
   * @deprecated since 1.0.0, replaced with error pushes since 1.3.0
  
   * Kept to avoid TypeErrors for undefined methods.
  
   */
  
  QUnit.equals = function() {
  
    QUnit.push( false, false, false, "QUnit.equals has been deprecated since 2009 (e88049a0), use QUnit.equal instead" );
  
  };
  
  QUnit.same = function() {
  
    QUnit.push( false, false, false, "QUnit.same has been deprecated since 2009 (e88049a0), use QUnit.deepEqual instead" );
  
  };
  
  
  
  // We want access to the constructor's prototype
  
  (function() {
  
    function F() {}
  
    F.prototype = QUnit;
  
    QUnit = new F();
  
    // Make F QUnit's constructor so that we can add to the prototype later
  
    QUnit.constructor = F;
  
  }());
  
  
  
  /**
  
   * Config object: Maintain internal state
  
   * Later exposed as QUnit.config
  
   * `config` initialized at top of scope
  
   */
  
  config = {
  
    // The queue of tests to run
  
    queue: [],
  
  
  
    // block until document ready
  
    blocking: true,
  
  
  
    // when enabled, show only failing tests
  
    // gets persisted through sessionStorage and can be changed in UI via checkbox
  
    hidepassed: false,
  
  
  
    // by default, run previously failed tests first
  
    // very useful in combination with "Hide passed tests" checked
  
    reorder: true,
  
  
  
    // by default, modify document.title when suite is done
  
    altertitle: true,
  
  
  
    // when enabled, all tests must call expect()
  
    requireExpects: false,
  
  
  
    // add checkboxes that are persisted in the query-string
  
    // when enabled, the id is set to `true` as a `QUnit.config` property
  
    urlConfig: [
  
      {
  
        id: "noglobals",
  
        label: "Check for Globals",
  
        tooltip: "Enabling this will test if any test introduces new properties on the `window` object. Stored as query-strings."
  
      },
  
      {
  
        id: "notrycatch",
  
        label: "No try-catch",
  
        tooltip: "Enabling this will run tests outside of a try-catch block. Makes debugging exceptions in IE reasonable. Stored as query-strings."
  
      }
  
    ],
  
  
  
    // Set of all modules.
  
    modules: {},
  
  
  
    // logging callback queues
  
    begin: [],
  
    done: [],
  
    log: [],
  
    testStart: [],
  
    testDone: [],
  
    moduleStart: [],
  
    moduleDone: []
  
  };
  
  
  
  // Export global variables, unless an 'exports' object exists,
  
  // in that case we assume we're in CommonJS (dealt with on the bottom of the script)
  
  if ( typeof exports === "undefined" ) {
  
    extend( window, QUnit.constructor.prototype );
  
  
  
    // Expose QUnit object
  
    window.QUnit = QUnit;
  
  }
  
  
  
  // Initialize more QUnit.config and QUnit.urlParams
  
  (function() {
  
    var i,
  
      location = window.location || { search: "", protocol: "file:" },
  
      params = location.search.slice( 1 ).split( "&" ),
  
      length = params.length,
  
      urlParams = {},
  
      current;
  
  
  
    if ( params[ 0 ] ) {
  
      for ( i = 0; i < length; i++ ) {
  
        current = params[ i ].split( "=" );
  
        current[ 0 ] = decodeURIComponent( current[ 0 ] );
  
        // allow just a key to turn on a flag, e.g., test.html?noglobals
  
        current[ 1 ] = current[ 1 ] ? decodeURIComponent( current[ 1 ] ) : true;
  
        urlParams[ current[ 0 ] ] = current[ 1 ];
  
      }
  
    }
  
  
  
    QUnit.urlParams = urlParams;
  
  
  
    // String search anywhere in moduleName+testName
  
    config.filter = urlParams.filter;
  
  
  
    // Exact match of the module name
  
    config.module = urlParams.module;
  
  
  
    config.testNumber = parseInt( urlParams.testNumber, 10 ) || null;
  
  
  
    // Figure out if we're running the tests from a server or not
  
    QUnit.isLocal = location.protocol === "file:";
  
  }());
  
  
  
  // Extend QUnit object,
  
  // these after set here because they should not be exposed as global functions
  
  extend( QUnit, {
  
    assert: assert,
  
  
  
    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;
  
      }
  
    },
  
  
  
    // Trigger an event on an element.
  
    // @example triggerEvent( document.body, "click" );
  
    triggerEvent: function( elem, type, event ) {
  
      if ( document.createEvent ) {
  
        event = document.createEvent( "MouseEvents" );
  
        event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
  
          0, 0, 0, 0, 0, false, false, false, false, 0, null);
  
  
  
        elem.dispatchEvent( event );
  
      } else if ( elem.fireEvent ) {
  
        elem.fireEvent( "on" + type );
  
      }
  
    },
  
  
  
    // Safe object type checking
  
    is: function( type, obj ) {
  
      return QUnit.objectType( obj ) === type;
  
    },
  
  
  
    objectType: function( obj ) {
  
      if ( typeof obj === "undefined" ) {
  
          return "undefined";
  
      // consider: typeof null === object
  
      }
  
      if ( obj === null ) {
  
          return "null";
  
      }
  
  
  
      var 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, duration }
  
    testDone: registerLoggingCallback( "testDone" ),
  
  
  
    // moduleStart: { name }
  
    moduleStart: registerLoggingCallback( "moduleStart" ),
  
  
  
    // moduleDone: { name, failed, passed, total }
  
    moduleDone: registerLoggingCallback( "moduleDone" )
  
  });
  
  
  
  if ( typeof document === "undefined" || document.readyState === "complete" ) {
  
    config.autorun = true;
  
  }
  
  
  
  QUnit.load = function() {
  
    runLoggingCallbacks( "begin", QUnit, {} );
  
  
  
    // Initialize the config, saving the execution queue
  
    var banner, filter, i, label, len, main, ol, toolbar, userAgent, val,
  
      urlConfigCheckboxesContainer, urlConfigCheckboxes, moduleFilter,
  
      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,
  
          tooltip: "[no tooltip available]"
  
        };
  
      }
  
      config[ val.id ] = QUnit.urlParams[ val.id ];
  
      urlConfigHtml += "<input id='qunit-urlconfig-" + escapeText( val.id ) +
  
        "' name='" + escapeText( val.id ) +
  
        "' type='checkbox'" + ( config[ val.id ] ? " checked='checked'" : "" ) +
  
        " title='" + escapeText( val.tooltip ) +
  
        "'><label for='qunit-urlconfig-" + escapeText( val.id ) +
  
        "' title='" + escapeText( val.tooltip ) + "'>" + val.label + "</label>";
  
    }
  
    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 = document.getElementById( "qunit-tests" );
  
  
  
        if ( filter.checked ) {
  
          ol.className = ol.className + " hidepass";
  
        } else {
  
          tmp = " " + ol.className.replace( /[\n\t\r]/g, " " ) + " ";
  
          ol.className = tmp.replace( / hidepass /, " " );
  
        }
  
        if ( defined.sessionStorage ) {
  
          if (filter.checked) {
  
            sessionStorage.setItem( "qunit-filter-passed-tests", "true" );
  
          } else {
  
            sessionStorage.removeItem( "qunit-filter-passed-tests" );
  
          }
  
        }
  
      });
  
  
  
      if ( config.hidepassed || defined.sessionStorage && sessionStorage.getItem( "qunit-filter-passed-tests" ) ) {
  
        filter.checked = true;
  
        // `ol` initialized at top of scope
  
        ol = document.getElementById( "qunit-tests" );
  
        ol.className = ol.className + " hidepass";
  
      }
  
      toolbar.appendChild( filter );
  
  
  
      // `label` initialized at top of scope
  
      label = document.createElement( "label" );
  
      label.setAttribute( "for", "qunit-filter-pass" );
  
      label.setAttribute( "title", "Only show tests and assertions that fail. Stored in sessionStorage." );
  
      label.innerHTML = "Hide passed tests";
  
      toolbar.appendChild( label );
  
  
  
      urlConfigCheckboxesContainer = document.createElement("span");
  
      urlConfigCheckboxesContainer.innerHTML = urlConfigHtml;
  
      urlConfigCheckboxes = urlConfigCheckboxesContainer.getElementsByTagName("input");
  
      // For oldIE support:
  
      // * Add handlers to the individual elements instead of the container
  
      // * Use "click" instead of "change"
  
      // * Fallback from event.target to event.srcElement
  
      addEvents( urlConfigCheckboxes, "click", function( event ) {
  
        var params = {},
  
          target = event.target || event.srcElement;
  
        params[ target.name ] = target.checked ? true : undefined;
  
        window.location = QUnit.url( params );
  
      });
  
      toolbar.appendChild( urlConfigCheckboxesContainer );
  
  
  
      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();
  
    }
  
  };
  
  
  
  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.currentModule ) {
  
      runLoggingCallbacks( "moduleDone", QUnit, {
  
        name: config.currentModule,
  
        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 && typeof document !== "undefined" && document.title ) {
  
      // show ✖ for good, ✔ for bad suite result in title
  
      // use escape sequences in case file gets loaded with non-utf-8-charset
  
      document.title = [
  
        ( config.stats.bad ? "\u2716" : "\u2714" ),
  
        document.title.replace( /^[\u2714\u2716] /i, "" )
  
      ].join( " " );
  
    }
  
  
  
    // clear own sessionStorage items if all tests passed
  
    if ( config.reorder && defined.sessionStorage && config.stats.bad === 0 ) {
  
      // `key` & `i` initialized at top of scope
  
      for ( i = 0; i < sessionStorage.length; i++ ) {
  
        key = sessionStorage.key( i++ );
  
        if ( key.indexOf( "qunit-test-" ) === 0 ) {
  
          sessionStorage.removeItem( key );
  
        }
  
      }
  
    }
  
  
  
    // scroll back to top to show results
  
    if ( 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 ) {
  
      return test.testNumber === config.testNumber;
  
    }
  
  
  
    if ( module && ( !test.module || test.module.toLowerCase() !== module ) ) {
  
      return false;
  
    }
  
  
  
    if ( !filter ) {
  
      return true;
  
    }
  
  
  
    include = filter.charAt( 0 ) !== "!";
  
    if ( !include ) {
  
      filter = filter.slice( 1 );
  
    }
  
  
  
    // If the filter matches, we need to honour include
  
    if ( fullName.indexOf( filter ) !== -1 ) {
  
      return include;
  
    }
  
  
  
    // Otherwise, do the opposite
  
    return !include;
  
  }
  
  
  
  // so far supports only Firefox, Chrome and Opera (buggy), Safari (for real exceptions)
  
  // Later Safari and IE10 are supposed to support error.stack as well
  
  // See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
  
  function extractStacktrace( e, offset ) {
  
    offset = offset === undefined ? 3 : offset;
  
  
  
    var stack, include, i;
  
  
  
    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 ) {
  
    // Standards-based browsers
  
    if ( elem.addEventListener ) {
  
      elem.addEventListener( type, fn, false );
  
    // IE
  
    } else {
  
      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 + " ") > -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 !!( typeof document !== "undefined" && document && document.getElementById ) &&
  
      document.getElementById( name );
  
  }
  
  
  
  function registerLoggingCallback( key ) {
  
    return function( callback ) {
  
      config[key].push( callback );
  
    };
  
  }
  
  
  
  // Supports deprecated method of completely overwriting logging callbacks
  
  function runLoggingCallbacks( key, scope, args ) {
  
    var i, callbacks;
  
    if ( QUnit.hasOwnProperty( key ) ) {
  
      QUnit[ key ].call(scope, args );
  
    } else {
  
      callbacks = config[ key ];
  
      for ( i = 0; i < callbacks.length; i++ ) {
  
        callbacks[ i ].call( scope, args );
  
      }
  
    }
  
  }
  
  
  
  // Test for equality any JavaScript type.
  
  // Author: Philippe Rathé <prathe@gmail.com>
  
  QUnit.equiv = (function() {
  
  
  
    // Call the o related callback with the given arguments.
  
    function bindCallbacks( o, callbacks, args ) {
  
      var prop = QUnit.objectType( o );
  
      if ( prop ) {
  
        if ( QUnit.objectType( callbacks[ prop ] ) === "function" ) {
  
          return callbacks[ prop ].apply( callbacks, args );
  
        } else {
  
          return callbacks[ prop ]; // or undefined
  
        }
  
      }
  
    }
  
  
  
    // the real equiv function
  
    var innerEquiv,
  
      // stack to decide between skip/abort functions
  
      callers = [],
  
      // stack to avoiding loops from circular referencing
  
      parents = [],
  
      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;
  
  }());
  
  
  
  // from jquery.js
  
  function inArray( elem, array ) {
  
    if ( array.indexOf ) {
  
      return array.indexOf( elem );
  
    }
  
  
  
    for ( var i = 0, length = array.length; i < length; i++ ) {
  
      if ( array[ i ] === elem ) {
  
        return i;
  
      }
  
    }
  
  
  
    return -1;
  
  }
  
  
  
  /*
  
   * Javascript Diff Algorithm
  
   *  By John Resig (http://ejohn.org/)
  
   *  Modified by Chu Alan "sprite"
  
   *
  
   * Released under the MIT license.
  
   *
  
   * More Info:
  
   *  http://ejohn.org/projects/javascript-diff-algorithm/
  
   *
  
   * Usage: QUnit.diff(expected, actual)
  
   *
  
   * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) == "the  quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over"
  
   */
  
  QUnit.diff = (function() {
  
    /*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 CommonJS environments, export everything
  
  if ( typeof exports !== "undefined" ) {
  
    extend( exports, QUnit.constructor.prototype );
  
  }
  
  
  
  // get at whatever the global object is, like window in browsers
  
  }( (function() {return this;}.call()) ));