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name : qunit.js 
/*!
 * QUnit 1.18.0
 * http://qunitjs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2015-04-03T10:23Z
 */

(function( window ) {

  var QUnit,
    config,
    onErrorFnPrev,
    loggingCallbacks = {},
    fileName = ( sourceFromStacktrace( 0 ) || "" ).replace( /(:\d+)+\)?/, "" ).replace( /.+\//, "" ),
    toString = Object.prototype.toString,
    hasOwn = Object.prototype.hasOwnProperty,
  // Keep a local reference to Date (GH-283)
    Date = window.Date,
    now = Date.now || function() {
        return new Date().getTime();
      },
    globalStartCalled = false,
    runStarted = false,
    setTimeout = window.setTimeout,
    clearTimeout = window.clearTimeout,
    defined = {
      document: window.document !== undefined,
      setTimeout: window.setTimeout !== undefined,
      sessionStorage: (function() {
        var x = "qunit-test-string";
        try {
          sessionStorage.setItem( x, x );
          sessionStorage.removeItem( x );
          return true;
        } catch ( e ) {
          return false;
        }
      }())
    },
    /**
     * Provides a normalized error string, correcting an issue
     * with IE 7 (and prior) where Error.prototype.toString is
     * not properly implemented
     *
     * Based on http://es5.github.com/#x15.11.4.4
     *
     * @param {String|Error} error
     * @return {String} error message
     */
    errorString = function( error ) {
      var name, message,
        errorString = error.toString();
      if ( errorString.substring( 0, 7 ) === "[object" ) {
        name = error.name ? error.name.toString() : "Error";
        message = error.message ? error.message.toString() : "";
        if ( name && message ) {
          return name + ": " + message;
        } else if ( name ) {
          return name;
        } else if ( message ) {
          return message;
        } else {
          return "Error";
        }
      } else {
        return errorString;
      }
    },
    /**
     * Makes a clone of an object using only Array or Object as base,
     * and copies over the own enumerable properties.
     *
     * @param {Object} obj
     * @return {Object} New object with only the own properties (recursively).
     */
    objectValues = function( obj ) {
      var key, val,
        vals = QUnit.is( "array", obj ) ? [] : {};
      for ( key in obj ) {
        if ( hasOwn.call( obj, key ) ) {
          val = obj[ key ];
          vals[ key ] = val === Object( val ) ? objectValues( val ) : val;
        }
      }
      return vals;
    };

  QUnit = {};

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

    // block until document ready
    blocking: true,

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

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

    // by default, scroll to top of the page when suite is done
    scrolltop: true,

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

    // depth up-to which object will be dumped
    maxDepth: 5,

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

    // Set of all modules.
    modules: [],

    // The first unnamed module
    currentModule: {
      name: "",
      tests: []
    },

    callbacks: {}
  };

// Push a loose unnamed module to the modules collection
  config.modules.push( config.currentModule );

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

    if ( params[ 0 ] ) {
      for ( i = 0; i < length; i++ ) {
        current = params[ i ].split( "=" );
        current[ 0 ] = decodeURIComponent( current[ 0 ] );

        // allow just a key to turn on a flag, e.g., test.html?noglobals
        current[ 1 ] = current[ 1 ] ? decodeURIComponent( current[ 1 ] ) : true;
        if ( urlParams[ current[ 0 ] ] ) {
          urlParams[ current[ 0 ] ] = [].concat( urlParams[ current[ 0 ] ], current[ 1 ] );
        } else {
          urlParams[ current[ 0 ] ] = current[ 1 ];
        }
      }
    }

    if ( urlParams.filter === true ) {
      delete urlParams.filter;
    }

    QUnit.urlParams = urlParams;

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

    if ( urlParams.maxDepth ) {
      config.maxDepth = parseInt( urlParams.maxDepth, 10 ) === -1 ?
        Number.POSITIVE_INFINITY :
        urlParams.maxDepth;
    }

    config.testId = [];
    if ( urlParams.testId ) {

      // Ensure that urlParams.testId is an array
      urlParams.testId = decodeURIComponent( urlParams.testId ).split( "," );
      for ( i = 0; i < urlParams.testId.length; i++ ) {
        config.testId.push( urlParams.testId[ i ] );
      }
    }

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

    // Expose the current QUnit version
    QUnit.version = "1.18.0";
  }());

// Root QUnit object.
// `QUnit` initialized at top of scope
  extend( QUnit, {

    // call on start of module test to prepend name to all tests
    module: function( name, testEnvironment ) {
      var currentModule = {
        name: name,
        testEnvironment: testEnvironment,
        tests: []
      };

      // DEPRECATED: handles setup/teardown functions,
      // beforeEach and afterEach should be used instead
      if ( testEnvironment && testEnvironment.setup ) {
        testEnvironment.beforeEach = testEnvironment.setup;
        delete testEnvironment.setup;
      }
      if ( testEnvironment && testEnvironment.teardown ) {
        testEnvironment.afterEach = testEnvironment.teardown;
        delete testEnvironment.teardown;
      }

      config.modules.push( currentModule );
      config.currentModule = currentModule;
    },

    // DEPRECATED: QUnit.asyncTest() will be removed in QUnit 2.0.
    asyncTest: function( testName, expected, callback ) {
      if ( arguments.length === 2 ) {
        callback = expected;
        expected = null;
      }

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

    test: function( testName, expected, callback, async ) {
      var test;

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

      test = new Test({
        testName: testName,
        expected: expected,
        async: async,
        callback: callback
      });

      test.queue();
    },

    skip: function( testName ) {
      var test = new Test({
        testName: testName,
        skip: true
      });

      test.queue();
    },

    // DEPRECATED: The functionality of QUnit.start() will be altered in QUnit 2.0.
    // In QUnit 2.0, invoking it will ONLY affect the `QUnit.config.autostart` blocking behavior.
    start: function( count ) {
      var globalStartAlreadyCalled = globalStartCalled;

      if ( !config.current ) {
        globalStartCalled = true;

        if ( runStarted ) {
          throw new Error( "Called start() outside of a test context while already started" );
        } else if ( globalStartAlreadyCalled || count > 1 ) {
          throw new Error( "Called start() outside of a test context too many times" );
        } else if ( config.autostart ) {
          throw new Error( "Called start() outside of a test context when " +
            "QUnit.config.autostart was true" );
        } else if ( !config.pageLoaded ) {

          // The page isn't completely loaded yet, so bail out and let `QUnit.load` handle it
          config.autostart = true;
          return;
        }
      } else {

        // If a test is running, adjust its semaphore
        config.current.semaphore -= count || 1;

        // Don't start until equal number of stop-calls
        if ( config.current.semaphore > 0 ) {
          return;
        }

        // throw an Error if start is called more often than stop
        if ( config.current.semaphore < 0 ) {
          config.current.semaphore = 0;

          QUnit.pushFailure(
            "Called start() while already started (test's semaphore was 0 already)",
            sourceFromStacktrace( 2 )
          );
          return;
        }
      }

      resumeProcessing();
    },

    // DEPRECATED: QUnit.stop() will be removed in QUnit 2.0.
    stop: function( count ) {

      // If there isn't a test running, don't allow QUnit.stop() to be called
      if ( !config.current ) {
        throw new Error( "Called stop() outside of a test context" );
      }

      // If a test is running, adjust its semaphore
      config.current.semaphore += count || 1;

      pauseProcessing();
    },

    config: config,

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

    objectType: function( obj ) {
      if ( typeof obj === "undefined" ) {
        return "undefined";
      }

      // Consider: typeof null === object
      if ( obj === null ) {
        return "null";
      }

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

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

    extend: extend,

    load: function() {
      config.pageLoaded = true;

      // Initialize the configuration options
      extend( config, {
        stats: { all: 0, bad: 0 },
        moduleStats: { all: 0, bad: 0 },
        started: 0,
        updateRate: 1000,
        autostart: true,
        filter: ""
      }, true );

      config.blocking = false;

      if ( config.autostart ) {
        resumeProcessing();
      }
    }
  });

// Register logging callbacks
  (function() {
    var i, l, key,
      callbacks = [ "begin", "done", "log", "testStart", "testDone",
        "moduleStart", "moduleDone" ];

    function registerLoggingCallback( key ) {
      var loggingCallback = function( callback ) {
        if ( QUnit.objectType( callback ) !== "function" ) {
          throw new Error(
            "QUnit logging methods require a callback function as their first parameters."
          );
        }

        config.callbacks[ key ].push( callback );
      };

      // DEPRECATED: This will be removed on QUnit 2.0.0+
      // Stores the registered functions allowing restoring
      // at verifyLoggingCallbacks() if modified
      loggingCallbacks[ key ] = loggingCallback;

      return loggingCallback;
    }

    for ( i = 0, l = callbacks.length; i < l; i++ ) {
      key = callbacks[ i ];

      // Initialize key collection of logging callback
      if ( QUnit.objectType( config.callbacks[ key ] ) === "undefined" ) {
        config.callbacks[ key ] = [];
      }

      QUnit[ key ] = registerLoggingCallback( key );
    }
  })();

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

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

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

    return ret;
  };

  function done() {
    var runtime, passed;

    config.autorun = true;

    // Log the last module results
    if ( config.previousModule ) {
      runLoggingCallbacks( "moduleDone", {
        name: config.previousModule.name,
        tests: config.previousModule.tests,
        failed: config.moduleStats.bad,
        passed: config.moduleStats.all - config.moduleStats.bad,
        total: config.moduleStats.all,
        runtime: now() - config.moduleStats.started
      });
    }
    delete config.previousModule;

    runtime = now() - config.started;
    passed = config.stats.all - config.stats.bad;

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

// Doesn't support IE6 to IE9, it will return undefined on these browsers
// See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
  function extractStacktrace( e, offset ) {
    offset = offset === undefined ? 4 : offset;

    var stack, include, i;

    if ( e.stack ) {
      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 ];

      // Support: Safari <=6 only
    } else if ( e.sourceURL ) {

      // exclude useless self-reference for generated Error objects
      if ( /qunit.js$/.test( e.sourceURL ) ) {
        return;
      }

      // for actual exceptions, this is useful
      return e.sourceURL + ":" + e.line;
    }
  }

  function sourceFromStacktrace( offset ) {
    var error = new Error();

    // Support: Safari <=7 only, IE <=10 - 11 only
    // Not all browsers generate the `stack` property for `new Error()`, see also #636
    if ( !error.stack ) {
      try {
        throw error;
      } catch ( err ) {
        error = err;
      }
    }

    return extractStacktrace( error, offset );
  }

  function synchronize( callback, last ) {
    if ( QUnit.objectType( callback ) === "array" ) {
      while ( callback.length ) {
        synchronize( callback.shift() );
      }
      return;
    }
    config.queue.push( callback );

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

  function process( last ) {
    function next() {
      process( last );
    }
    var start = now();
    config.depth = ( config.depth || 0 ) + 1;

    while ( config.queue.length && !config.blocking ) {
      if ( !defined.setTimeout || config.updateRate <= 0 ||
        ( ( now() - start ) < config.updateRate ) ) {
        if ( config.current ) {

          // Reset async tracking for each phase of the Test lifecycle
          config.current.usedAsync = false;
        }
        config.queue.shift()();
      } else {
        setTimeout( next, 13 );
        break;
      }
    }
    config.depth--;
    if ( last && !config.blocking && !config.queue.length && config.depth === 0 ) {
      done();
    }
  }

  function begin() {
    var i, l,
      modulesLog = [];

    // If the test run hasn't officially begun yet
    if ( !config.started ) {

      // Record the time of the test run's beginning
      config.started = now();

      verifyLoggingCallbacks();

      // Delete the loose unnamed module if unused.
      if ( config.modules[ 0 ].name === "" && config.modules[ 0 ].tests.length === 0 ) {
        config.modules.shift();
      }

      // Avoid unnecessary information by not logging modules' test environments
      for ( i = 0, l = config.modules.length; i < l; i++ ) {
        modulesLog.push({
          name: config.modules[ i ].name,
          tests: config.modules[ i ].tests
        });
      }

      // The test run is officially beginning now
      runLoggingCallbacks( "begin", {
        totalTests: Test.count,
        modules: modulesLog
      });
    }

    config.blocking = false;
    process( true );
  }

  function resumeProcessing() {
    runStarted = true;

    // A slight delay to allow this iteration of the event loop to finish (more assertions, etc.)
    if ( defined.setTimeout ) {
      setTimeout(function() {
        if ( config.current && config.current.semaphore > 0 ) {
          return;
        }
        if ( config.timeout ) {
          clearTimeout( config.timeout );
        }

        begin();
      }, 13 );
    } else {
      begin();
    }
  }

  function pauseProcessing() {
    config.blocking = true;

    if ( config.testTimeout && defined.setTimeout ) {
      clearTimeout( config.timeout );
      config.timeout = setTimeout(function() {
        if ( config.current ) {
          config.current.semaphore = 0;
          QUnit.pushFailure( "Test timed out", sourceFromStacktrace( 2 ) );
        } else {
          throw new Error( "Test timed out" );
        }
        resumeProcessing();
      }, config.testTimeout );
    }
  }

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

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

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

    saveGlobal();

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

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

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

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

  function extend( a, b, undefOnly ) {
    for ( var prop in b ) {
      if ( hasOwn.call( b, prop ) ) {

        // Avoid "Member not found" error in IE8 caused by messing with window.constructor
        if ( !( prop === "constructor" && a === window ) ) {
          if ( b[ prop ] === undefined ) {
            delete a[ prop ];
          } else if ( !( undefOnly && typeof a[ prop ] !== "undefined" ) ) {
            a[ prop ] = b[ prop ];
          }
        }
      }
    }

    return a;
  }

  function runLoggingCallbacks( key, args ) {
    var i, l, callbacks;

    callbacks = config.callbacks[ key ];
    for ( i = 0, l = callbacks.length; i < l; i++ ) {
      callbacks[ i ]( args );
    }
  }

// DEPRECATED: This will be removed on 2.0.0+
// This function verifies if the loggingCallbacks were modified by the user
// If so, it will restore it, assign the given callback and print a console warning
  function verifyLoggingCallbacks() {
    var loggingCallback, userCallback;

    for ( loggingCallback in loggingCallbacks ) {
      if ( QUnit[ loggingCallback ] !== loggingCallbacks[ loggingCallback ] ) {

        userCallback = QUnit[ loggingCallback ];

        // Restore the callback function
        QUnit[ loggingCallback ] = loggingCallbacks[ loggingCallback ];

        // Assign the deprecated given callback
        QUnit[ loggingCallback ]( userCallback );

        if ( window.console && window.console.warn ) {
          window.console.warn(
            "QUnit." + loggingCallback + " was replaced with a new value.\n" +
            "Please, check out the documentation on how to apply logging callbacks.\n" +
            "Reference: http://api.qunitjs.com/category/callbacks/"
          );
        }
      }
    }
  }

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

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

    return -1;
  }

  function Test( settings ) {
    var i, l;

    ++Test.count;

    extend( this, settings );
    this.assertions = [];
    this.semaphore = 0;
    this.usedAsync = false;
    this.module = config.currentModule;
    this.stack = sourceFromStacktrace( 3 );

    // Register unique strings
    for ( i = 0, l = this.module.tests; i < l.length; i++ ) {
      if ( this.module.tests[ i ].name === this.testName ) {
        this.testName += " ";
      }
    }

    this.testId = generateHash( this.module.name, this.testName );

    this.module.tests.push({
      name: this.testName,
      testId: this.testId
    });

    if ( settings.skip ) {

      // Skipped tests will fully ignore any sent callback
      this.callback = function() {};
      this.async = false;
      this.expected = 0;
    } else {
      this.assert = new Assert( this );
    }
  }

  Test.count = 0;

  Test.prototype = {
    before: function() {
      if (

        // Emit moduleStart when we're switching from one module to another
      this.module !== config.previousModule ||

        // They could be equal (both undefined) but if the previousModule property doesn't
        // yet exist it means this is the first test in a suite that isn't wrapped in a
        // module, in which case we'll just emit a moduleStart event for 'undefined'.
        // Without this, reporters can get testStart before moduleStart  which is a problem.
      !hasOwn.call( config, "previousModule" )
      ) {
        if ( hasOwn.call( config, "previousModule" ) ) {
          runLoggingCallbacks( "moduleDone", {
            name: config.previousModule.name,
            tests: config.previousModule.tests,
            failed: config.moduleStats.bad,
            passed: config.moduleStats.all - config.moduleStats.bad,
            total: config.moduleStats.all,
            runtime: now() - config.moduleStats.started
          });
        }
        config.previousModule = this.module;
        config.moduleStats = { all: 0, bad: 0, started: now() };
        runLoggingCallbacks( "moduleStart", {
          name: this.module.name,
          tests: this.module.tests
        });
      }

      config.current = this;

      this.testEnvironment = extend( {}, this.module.testEnvironment );
      delete this.testEnvironment.beforeEach;
      delete this.testEnvironment.afterEach;

      this.started = now();
      runLoggingCallbacks( "testStart", {
        name: this.testName,
        module: this.module.name,
        testId: this.testId
      });

      if ( !config.pollution ) {
        saveGlobal();
      }
    },

    run: function() {
      var promise;

      config.current = this;

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

      this.callbackStarted = now();

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

      try {
        promise = this.callback.call( this.testEnvironment, this.assert );
        this.resolvePromise( promise );
      } catch ( e ) {
        this.pushFailure( "Died on test #" + ( this.assertions.length + 1 ) + " " +
          this.stack + ": " + ( e.message || e ), extractStacktrace( e, 0 ) );

        // else next test will carry the responsibility
        saveGlobal();

        // Restart the tests if they're blocking
        if ( config.blocking ) {
          QUnit.start();
        }
      }
    },

    after: function() {
      checkPollution();
    },

    queueHook: function( hook, hookName ) {
      var promise,
        test = this;
      return function runHook() {
        config.current = test;
        if ( config.notrycatch ) {
          promise = hook.call( test.testEnvironment, test.assert );
          test.resolvePromise( promise, hookName );
          return;
        }
        try {
          promise = hook.call( test.testEnvironment, test.assert );
          test.resolvePromise( promise, hookName );
        } catch ( error ) {
          test.pushFailure( hookName + " failed on " + test.testName + ": " +
            ( error.message || error ), extractStacktrace( error, 0 ) );
        }
      };
    },

    // Currently only used for module level hooks, can be used to add global level ones
    hooks: function( handler ) {
      var hooks = [];

      // Hooks are ignored on skipped tests
      if ( this.skip ) {
        return hooks;
      }

      if ( this.module.testEnvironment &&
        QUnit.objectType( this.module.testEnvironment[ handler ] ) === "function" ) {
        hooks.push( this.queueHook( this.module.testEnvironment[ handler ], handler ) );
      }

      return hooks;
    },

    finish: function() {
      config.current = this;
      if ( config.requireExpects && this.expected === null ) {
        this.pushFailure( "Expected number of assertions to be defined, but expect() was " +
          "not called.", this.stack );
      } else if ( this.expected !== null && this.expected !== this.assertions.length ) {
        this.pushFailure( "Expected " + this.expected + " assertions, but " +
          this.assertions.length + " were run", this.stack );
      } else if ( this.expected === null && !this.assertions.length ) {
        this.pushFailure( "Expected at least one assertion, but none were run - call " +
          "expect(0) to accept zero assertions.", this.stack );
      }

      var i,
        bad = 0;

      this.runtime = now() - this.started;
      config.stats.all += this.assertions.length;
      config.moduleStats.all += this.assertions.length;

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

      runLoggingCallbacks( "testDone", {
        name: this.testName,
        module: this.module.name,
        skipped: !!this.skip,
        failed: bad,
        passed: this.assertions.length - bad,
        total: this.assertions.length,
        runtime: this.runtime,

        // HTML Reporter use
        assertions: this.assertions,
        testId: this.testId,

        // DEPRECATED: this property will be removed in 2.0.0, use runtime instead
        duration: this.runtime
      });

      // QUnit.reset() is deprecated and will be replaced for a new
      // fixture reset function on QUnit 2.0/2.1.
      // It's still called here for backwards compatibility handling
      QUnit.reset();

      config.current = undefined;
    },

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

      if ( !this.valid() ) {
        return;
      }

      function run() {

        // each of these can by async
        synchronize([
          function() {
            test.before();
          },

          test.hooks( "beforeEach" ),

          function() {
            test.run();
          },

          test.hooks( "afterEach" ).reverse(),

          function() {
            test.after();
          },
          function() {
            test.finish();
          }
        ]);
      }

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

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

    push: function( result, actual, expected, message ) {
      var source,
        details = {
          module: this.module.name,
          name: this.testName,
          result: result,
          message: message,
          actual: actual,
          expected: expected,
          testId: this.testId,
          runtime: now() - this.started
        };

      if ( !result ) {
        source = sourceFromStacktrace();

        if ( source ) {
          details.source = source;
        }
      }

      runLoggingCallbacks( "log", details );

      this.assertions.push({
        result: !!result,
        message: message
      });
    },

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

      var details = {
        module: this.module.name,
        name: this.testName,
        result: false,
        message: message || "error",
        actual: actual || null,
        testId: this.testId,
        runtime: now() - this.started
      };

      if ( source ) {
        details.source = source;
      }

      runLoggingCallbacks( "log", details );

      this.assertions.push({
        result: false,
        message: message
      });
    },

    resolvePromise: function( promise, phase ) {
      var then, message,
        test = this;
      if ( promise != null ) {
        then = promise.then;
        if ( QUnit.objectType( then ) === "function" ) {
          QUnit.stop();
          then.call(
            promise,
            QUnit.start,
            function( error ) {
              message = "Promise rejected " +
                ( !phase ? "during" : phase.replace( /Each$/, "" ) ) +
                " " + test.testName + ": " + ( error.message || error );
              test.pushFailure( message, extractStacktrace( error, 0 ) );

              // else next test will carry the responsibility
              saveGlobal();

              // Unblock
              QUnit.start();
            }
          );
        }
      }
    },

    valid: function() {
      var include,
        filter = config.filter && config.filter.toLowerCase(),
        module = QUnit.urlParams.module && QUnit.urlParams.module.toLowerCase(),
        fullName = ( this.module.name + ": " + this.testName ).toLowerCase();

      // Internally-generated tests are always valid
      if ( this.callback && this.callback.validTest ) {
        return true;
      }

      if ( config.testId.length > 0 && inArray( this.testId, config.testId ) < 0 ) {
        return false;
      }

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

      if ( !filter ) {
        return true;
      }

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

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

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

  };

// Resets the test setup. Useful for tests that modify the DOM.
  /*
   DEPRECATED: Use multiple tests instead of resetting inside a test.
   Use testStart or testDone for custom cleanup.
   This method will throw an error in 2.0, and will be removed in 2.1
   */
  QUnit.reset = function() {

    // Return on non-browser environments
    // This is necessary to not break on node tests
    if ( typeof window === "undefined" ) {
      return;
    }

    var fixture = defined.document && document.getElementById &&
      document.getElementById( "qunit-fixture" );

    if ( fixture ) {
      fixture.innerHTML = config.fixture;
    }
  };

  QUnit.pushFailure = function() {
    if ( !QUnit.config.current ) {
      throw new Error( "pushFailure() assertion outside test context, in " +
        sourceFromStacktrace( 2 ) );
    }

    // Gets current test obj
    var currentTest = QUnit.config.current;

    return currentTest.pushFailure.apply( currentTest, arguments );
  };

// Based on Java's String.hashCode, a simple but not
// rigorously collision resistant hashing function
  function generateHash( module, testName ) {
    var hex,
      i = 0,
      hash = 0,
      str = module + "\x1C" + testName,
      len = str.length;

    for ( ; i < len; i++ ) {
      hash  = ( ( hash << 5 ) - hash ) + str.charCodeAt( i );
      hash |= 0;
    }

    // Convert the possibly negative integer hash code into an 8 character hex string, which isn't
    // strictly necessary but increases user understanding that the id is a SHA-like hash
    hex = ( 0x100000000 + hash ).toString( 16 );
    if ( hex.length < 8 ) {
      hex = "0000000" + hex;
    }

    return hex.slice( -8 );
  }

  function Assert( testContext ) {
    this.test = testContext;
  }

// Assert helpers
  QUnit.assert = Assert.prototype = {

    // Specify the number of expected assertions to guarantee that failed test
    // (no assertions are run at all) don't slip through.
    expect: function( asserts ) {
      if ( arguments.length === 1 ) {
        this.test.expected = asserts;
      } else {
        return this.test.expected;
      }
    },

    // Increment this Test's semaphore counter, then return a single-use function that
    // decrements that counter a maximum of once.
    async: function() {
      var test = this.test,
        popped = false;

      test.semaphore += 1;
      test.usedAsync = true;
      pauseProcessing();

      return function done() {
        if ( !popped ) {
          test.semaphore -= 1;
          popped = true;
          resumeProcessing();
        } else {
          test.pushFailure( "Called the callback returned from `assert.async` more than once",
            sourceFromStacktrace( 2 ) );
        }
      };
    },

    // Exports test.push() to the user API
    push: function( /* result, actual, expected, message */ ) {
      var assert = this,
        currentTest = ( assert instanceof Assert && assert.test ) || QUnit.config.current;

      // Backwards compatibility fix.
      // Allows the direct use of global exported assertions and QUnit.assert.*
      // Although, it's use is not recommended as it can leak assertions
      // to other tests from async tests, because we only get a reference to the current test,
      // not exactly the test where assertion were intended to be called.
      if ( !currentTest ) {
        throw new Error( "assertion outside test context, in " + sourceFromStacktrace( 2 ) );
      }

      if ( currentTest.usedAsync === true && currentTest.semaphore === 0 ) {
        currentTest.pushFailure( "Assertion after the final `assert.async` was resolved",
          sourceFromStacktrace( 2 ) );

        // Allow this assertion to continue running anyway...
      }

      if ( !( assert instanceof Assert ) ) {
        assert = currentTest.assert;
      }
      return assert.test.push.apply( assert.test, arguments );
    },

    ok: function( result, message ) {
      message = message || ( result ? "okay" : "failed, expected argument to be truthy, was: " +
        QUnit.dump.parse( result ) );
      this.push( !!result, result, true, message );
    },

    notOk: function( result, message ) {
      message = message || ( !result ? "okay" : "failed, expected argument to be falsy, was: " +
        QUnit.dump.parse( result ) );
      this.push( !result, result, false, message );
    },

    equal: function( actual, expected, message ) {
      /*jshint eqeqeq:false */
      this.push( expected == actual, actual, expected, message );
    },

    notEqual: function( actual, expected, message ) {
      /*jshint eqeqeq:false */
      this.push( expected != actual, actual, expected, message );
    },

    propEqual: function( actual, expected, message ) {
      actual = objectValues( actual );
      expected = objectValues( expected );
      this.push( QUnit.equiv( actual, expected ), actual, expected, message );
    },

    notPropEqual: function( actual, expected, message ) {
      actual = objectValues( actual );
      expected = objectValues( expected );
      this.push( !QUnit.equiv( actual, expected ), actual, expected, message );
    },

    deepEqual: function( actual, expected, message ) {
      this.push( QUnit.equiv( actual, expected ), actual, expected, message );
    },

    notDeepEqual: function( actual, expected, message ) {
      this.push( !QUnit.equiv( actual, expected ), actual, expected, message );
    },

    strictEqual: function( actual, expected, message ) {
      this.push( expected === actual, actual, expected, message );
    },

    notStrictEqual: function( actual, expected, message ) {
      this.push( expected !== actual, actual, expected, message );
    },

    "throws": function( block, expected, message ) {
      var actual, expectedType,
        expectedOutput = expected,
        ok = false,
        currentTest = ( this instanceof Assert && this.test ) || QUnit.config.current;

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

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

      if ( actual ) {
        expectedType = QUnit.objectType( expected );

        // we don't want to validate thrown error
        if ( !expected ) {
          ok = true;
          expectedOutput = null;

          // expected is a regexp
        } else if ( expectedType === "regexp" ) {
          ok = expected.test( errorString( actual ) );

          // expected is a string
        } else if ( expectedType === "string" ) {
          ok = expected === errorString( actual );

          // expected is a constructor, maybe an Error constructor
        } else if ( expectedType === "function" && actual instanceof expected ) {
          ok = true;

          // expected is an Error object
        } else if ( expectedType === "object" ) {
          ok = actual instanceof expected.constructor &&
            actual.name === expected.name &&
            actual.message === expected.message;

          // expected is a validation function which returns true if validation passed
        } else if ( expectedType === "function" && expected.call( {}, actual ) === true ) {
          expectedOutput = null;
          ok = true;
        }
      }

      currentTest.assert.push( ok, actual, expectedOutput, message );
    }
  };

// Provide an alternative to assert.throws(), for enviroments that consider throws a reserved word
// Known to us are: Closure Compiler, Narwhal
  (function() {
    /*jshint sub:true */
    Assert.prototype.raises = Assert.prototype[ "throws" ];
  }());

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

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

    // the real equiv function
    var innerEquiv,

    // stack to decide between skip/abort functions
      callers = [],

    // stack to avoiding loops from circular referencing
      parents = [],
      parentsB = [],

      getProto = Object.getPrototypeOf || function( obj ) {
          /* jshint camelcase: false, proto: true */
          return obj.__proto__;
        },
      callbacks = (function() {

        // for string, boolean, number and null
        function useStrictEquality( b, a ) {

          /*jshint eqeqeq:false */
          if ( b instanceof a.constructor || a instanceof b.constructor ) {

            // to catch short annotation VS 'new' annotation of a
            // declaration
            // e.g. var i = 1;
            // var j = new Number(1);
            return a == b;
          } else {
            return a === b;
          }
        }

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

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

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

          "regexp": function( b, a ) {
            return QUnit.objectType( b ) === "regexp" &&

                // the regex itself
              a.source === b.source &&

                // and its modifiers
              a.global === b.global &&

                // (gmi) ...
              a.ignoreCase === b.ignoreCase &&
              a.multiline === b.multiline &&
              a.sticky === b.sticky;
          },

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

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

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

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

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

          "object": function( b, a ) {

            /*jshint forin:false */
            var i, j, loop, aCircular, bCircular,
            // Default to true
              eq = true,
              aProperties = [],
              bProperties = [];

            // comparing constructors is more strict than using
            // instanceof
            if ( a.constructor !== b.constructor ) {

              // Allow objects with no prototype to be equivalent to
              // objects with Object as their constructor.
              if ( !( ( getProto( a ) === null && getProto( b ) === Object.prototype ) ||
                ( getProto( b ) === null && getProto( a ) === Object.prototype ) ) ) {
                return false;
              }
            }

            // stack constructor before traversing properties
            callers.push( a.constructor );

            // track reference to avoid circular references
            parents.push( a );
            parentsB.push( b );

            // be strict: don't ensure hasOwnProperty and go deep
            for ( i in a ) {
              loop = false;
              for ( j = 0; j < parents.length; j++ ) {
                aCircular = parents[ j ] === a[ i ];
                bCircular = parentsB[ j ] === b[ i ];
                if ( aCircular || bCircular ) {
                  if ( a[ i ] === b[ i ] || aCircular && bCircular ) {
                    loop = true;
                  } else {
                    eq = false;
                    break;
                  }
                }
              }
              aProperties.push( i );
              if ( !loop && !innerEquiv( a[ i ], b[ i ] ) ) {
                eq = false;
                break;
              }
            }

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

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

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

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

      return ( (function( a, b ) {
        if ( a === b ) {
          return true; // catch the most you can
        } else if ( a === null || b === null || typeof a === "undefined" ||
          typeof b === "undefined" ||
          QUnit.objectType( a ) !== QUnit.objectType( b ) ) {

          // don't lose time with error prone cases
          return false;
        } else {
          return bindCallbacks( a, callbacks, [ b, a ] );
        }

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

    return innerEquiv;
  }());

// Based on jsDump by Ariel Flesler
// http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html
  QUnit.dump = (function() {
    function quote( str ) {
      return "\"" + str.toString().replace( /"/g, "\\\"" ) + "\"";
    }
    function literal( o ) {
      return o + "";
    }
    function join( pre, arr, post ) {
      var s = dump.separator(),
        base = dump.indent(),
        inner = dump.indent( 1 );
      if ( arr.join ) {
        arr = arr.join( "," + s + inner );
      }
      if ( !arr ) {
        return pre + post;
      }
      return [ pre, inner + arr, base + post ].join( s );
    }
    function array( arr, stack ) {
      var i = arr.length,
        ret = new Array( i );

      if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
        return "[object Array]";
      }

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

    var reName = /^function (\w+)/,
      dump = {

        // objType is used mostly internally, you can fix a (custom) type in advance
        parse: function( obj, objType, stack ) {
          stack = stack || [];
          var res, parser, parserType,
            inStack = inArray( obj, stack );

          if ( inStack !== -1 ) {
            return "recursion(" + ( inStack - stack.length ) + ")";
          }

          objType = objType || this.typeOf( obj  );
          parser = this.parsers[ objType ];
          parserType = typeof parser;

          if ( parserType === "function" ) {
            stack.push( obj );
            res = parser.call( this, obj, stack );
            stack.pop();
            return res;
          }
          return ( parserType === "string" ) ? parser : this.parsers.error;
        },
        typeOf: function( obj ) {
          var type;
          if ( obj === null ) {
            type = "null";
          } else if ( typeof obj === "undefined" ) {
            type = "undefined";
          } else if ( QUnit.is( "regexp", obj ) ) {
            type = "regexp";
          } else if ( QUnit.is( "date", obj ) ) {
            type = "date";
          } else if ( QUnit.is( "function", obj ) ) {
            type = "function";
          } else if ( obj.setInterval !== undefined &&
            obj.document !== undefined &&
            obj.nodeType === undefined ) {
            type = "window";
          } else if ( obj.nodeType === 9 ) {
            type = "document";
          } else if ( obj.nodeType ) {
            type = "node";
          } else if (

            // native arrays
          toString.call( obj ) === "[object Array]" ||

            // NodeList objects
          ( typeof obj.length === "number" && obj.item !== undefined &&
          ( obj.length ? obj.item( 0 ) === obj[ 0 ] : ( obj.item( 0 ) === null &&
          obj[ 0 ] === undefined ) ) )
          ) {
            type = "array";
          } else if ( obj.constructor === Error.prototype.constructor ) {
            type = "error";
          } else {
            type = typeof obj;
          }
          return type;
        },
        separator: function() {
          return this.multiline ? this.HTML ? "<br />" : "\n" : this.HTML ? "&#160;" : " ";
        },
        // extra can be a number, shortcut for increasing-calling-decreasing
        indent: function( extra ) {
          if ( !this.multiline ) {
            return "";
          }
          var chr = this.indentChar;
          if ( this.HTML ) {
            chr = chr.replace( /\t/g, "   " ).replace( / /g, "&#160;" );
          }
          return new Array( this.depth + ( extra || 0 ) ).join( chr );
        },
        up: function( a ) {
          this.depth += a || 1;
        },
        down: function( a ) {
          this.depth -= a || 1;
        },
        setParser: function( name, parser ) {
          this.parsers[ name ] = parser;
        },
        // The next 3 are exposed so you can use them
        quote: quote,
        literal: literal,
        join: join,
        //
        depth: 1,
        maxDepth: QUnit.config.maxDepth,

        // This is the list of parsers, to modify them, use dump.setParser
        parsers: {
          window: "[Window]",
          document: "[Document]",
          error: function( error ) {
            return "Error(\"" + error.message + "\")";
          },
          unknown: "[Unknown]",
          "null": "null",
          "undefined": "undefined",
          "function": function( fn ) {
            var ret = "function",

            // functions never have name in IE
              name = "name" in fn ? fn.name : ( reName.exec( fn ) || [] )[ 1 ];

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

            ret = [ ret, dump.parse( fn, "functionArgs" ), "){" ].join( "" );
            return join( ret, dump.parse( fn, "functionCode" ), "}" );
          },
          array: array,
          nodelist: array,
          "arguments": array,
          object: function( map, stack ) {
            var keys, key, val, i, nonEnumerableProperties,
              ret = [];

            if ( dump.maxDepth && dump.depth > dump.maxDepth ) {
              return "[object Object]";
            }

            dump.up();
            keys = [];
            for ( key in map ) {
              keys.push( key );
            }

            // Some properties are not always enumerable on Error objects.
            nonEnumerableProperties = [ "message", "name" ];
            for ( i in nonEnumerableProperties ) {
              key = nonEnumerableProperties[ i ];
              if ( key in map && inArray( key, keys ) < 0 ) {
                keys.push( key );
              }
            }
            keys.sort();
            for ( i = 0; i < keys.length; i++ ) {
              key = keys[ i ];
              val = map[ key ];
              ret.push( dump.parse( key, "key" ) + ": " +
                dump.parse( val, undefined, stack ) );
            }
            dump.down();
            return join( "{", ret, "}" );
          },
          node: function( node ) {
            var len, i, val,
              open = dump.HTML ? "&lt;" : "<",
              close = dump.HTML ? "&gt;" : ">",
              tag = node.nodeName.toLowerCase(),
              ret = open + tag,
              attrs = node.attributes;

            if ( attrs ) {
              for ( i = 0, len = attrs.length; i < len; i++ ) {
                val = attrs[ i ].nodeValue;

                // IE6 includes all attributes in .attributes, even ones not explicitly
                // set. Those have values like undefined, null, 0, false, "" or
                // "inherit".
                if ( val && val !== "inherit" ) {
                  ret += " " + attrs[ i ].nodeName + "=" +
                    dump.parse( val, "attribute" );
                }
              }
            }
            ret += close;

            // Show content of TextNode or CDATASection
            if ( node.nodeType === 3 || node.nodeType === 4 ) {
              ret += node.nodeValue;
            }

            return ret + open + "/" + tag + close;
          },

          // function calls it internally, it's the arguments part of the function
          functionArgs: function( fn ) {
            var args,
              l = fn.length;

            if ( !l ) {
              return "";
            }

            args = new Array( l );
            while ( l-- ) {

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

    return dump;
  }());

// back compat
  QUnit.jsDump = QUnit.dump;

// For browser, export only select globals
  if ( typeof window !== "undefined" ) {

    // Deprecated
    // Extend assert methods to QUnit and Global scope through Backwards compatibility
    (function() {
      var i,
        assertions = Assert.prototype;

      function applyCurrent( current ) {
        return function() {
          var assert = new Assert( QUnit.config.current );
          current.apply( assert, arguments );
        };
      }

      for ( i in assertions ) {
        QUnit[ i ] = applyCurrent( assertions[ i ] );
      }
    })();

    (function() {
      var i, l,
        keys = [
          "test",
          "module",
          "expect",
          "asyncTest",
          "start",
          "stop",
          "ok",
          "notOk",
          "equal",
          "notEqual",
          "propEqual",
          "notPropEqual",
          "deepEqual",
          "notDeepEqual",
          "strictEqual",
          "notStrictEqual",
          "throws"
        ];

      for ( i = 0, l = keys.length; i < l; i++ ) {
        window[ keys[ i ] ] = QUnit[ keys[ i ] ];
      }
    })();

    window.QUnit = QUnit;
  }

// For nodejs
  if ( typeof module !== "undefined" && module && module.exports ) {
    module.exports = QUnit;

    // For consistency with CommonJS environments' exports
    module.exports.QUnit = QUnit;
  }

// For CommonJS with exports, but without module.exports, like Rhino
  if ( typeof exports !== "undefined" && exports ) {
    exports.QUnit = QUnit;
  }

  if ( typeof define === "function" && define.amd ) {
    define( function() {
      return QUnit;
    } );
    QUnit.config.autostart = false;
  }

// Get a reference to the global object, like window in browsers
}( (function() {
  return this;
})() ));

/*istanbul ignore next */
// jscs:disable maximumLineLength
/*
 * This file is a modified version of google-diff-match-patch's JavaScript implementation
 * (https://code.google.com/p/google-diff-match-patch/source/browse/trunk/javascript/diff_match_patch_uncompressed.js),
 * modifications are licensed as more fully set forth in LICENSE.txt.
 *
 * The original source of google-diff-match-patch is attributable and licensed as follows:
 *
 * Copyright 2006 Google Inc.
 * http://code.google.com/p/google-diff-match-patch/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * More Info:
 *  https://code.google.com/p/google-diff-match-patch/
 *
 * Usage: QUnit.diff(expected, actual)
 *
 * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) === "the  quick <del>brown </del> fox jump<ins>s</ins><del>ed</del over"
 */
QUnit.diff = (function() {

  function DiffMatchPatch() {

    // Defaults.
    // Redefine these in your program to override the defaults.

    // Number of seconds to map a diff before giving up (0 for infinity).
    this.DiffTimeout = 1.0;
    // Cost of an empty edit operation in terms of edit characters.
    this.DiffEditCost = 4;
  }

  //  DIFF FUNCTIONS

  /**
   * The data structure representing a diff is an array of tuples:
   * [[DIFF_DELETE, 'Hello'], [DIFF_INSERT, 'Goodbye'], [DIFF_EQUAL, ' world.']]
   * which means: delete 'Hello', add 'Goodbye' and keep ' world.'
   */
  var DIFF_DELETE = -1,
    DIFF_INSERT = 1,
    DIFF_EQUAL = 0;

  /**
   * Find the differences between two texts.  Simplifies the problem by stripping
   * any common prefix or suffix off the texts before diffing.
   * @param {string} text1 Old string to be diffed.
   * @param {string} text2 New string to be diffed.
   * @param {boolean=} optChecklines Optional speedup flag. If present and false,
   *     then don't run a line-level diff first to identify the changed areas.
   *     Defaults to true, which does a faster, slightly less optimal diff.
   * @param {number} optDeadline Optional time when the diff should be complete
   *     by.  Used internally for recursive calls.  Users should set DiffTimeout
   *     instead.
   * @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
   */
  DiffMatchPatch.prototype.DiffMain = function( text1, text2, optChecklines, optDeadline ) {
    var deadline, checklines, commonlength,
      commonprefix, commonsuffix, diffs;
    // Set a deadline by which time the diff must be complete.
    if ( typeof optDeadline === "undefined" ) {
      if ( this.DiffTimeout <= 0 ) {
        optDeadline = Number.MAX_VALUE;
      } else {
        optDeadline = ( new Date() ).getTime() + this.DiffTimeout * 1000;
      }
    }
    deadline = optDeadline;

    // Check for null inputs.
    if ( text1 === null || text2 === null ) {
      throw new Error( "Null input. (DiffMain)" );
    }

    // Check for equality (speedup).
    if ( text1 === text2 ) {
      if ( text1 ) {
        return [
          [ DIFF_EQUAL, text1 ]
        ];
      }
      return [];
    }

    if ( typeof optChecklines === "undefined" ) {
      optChecklines = true;
    }

    checklines = optChecklines;

    // Trim off common prefix (speedup).
    commonlength = this.diffCommonPrefix( text1, text2 );
    commonprefix = text1.substring( 0, commonlength );
    text1 = text1.substring( commonlength );
    text2 = text2.substring( commonlength );

    // Trim off common suffix (speedup).
    /////////
    commonlength = this.diffCommonSuffix( text1, text2 );
    commonsuffix = text1.substring( text1.length - commonlength );
    text1 = text1.substring( 0, text1.length - commonlength );
    text2 = text2.substring( 0, text2.length - commonlength );

    // Compute the diff on the middle block.
    diffs = this.diffCompute( text1, text2, checklines, deadline );

    // Restore the prefix and suffix.
    if ( commonprefix ) {
      diffs.unshift( [ DIFF_EQUAL, commonprefix ] );
    }
    if ( commonsuffix ) {
      diffs.push( [ DIFF_EQUAL, commonsuffix ] );
    }
    this.diffCleanupMerge( diffs );
    return diffs;
  };

  /**
   * Reduce the number of edits by eliminating operationally trivial equalities.
   * @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
   */
  DiffMatchPatch.prototype.diffCleanupEfficiency = function( diffs ) {
    var changes, equalities, equalitiesLength, lastequality,
      pointer, preIns, preDel, postIns, postDel;
    changes = false;
    equalities = []; // Stack of indices where equalities are found.
    equalitiesLength = 0; // Keeping our own length var is faster in JS.
    /** @type {?string} */
    lastequality = null;
    // Always equal to diffs[equalities[equalitiesLength - 1]][1]
    pointer = 0; // Index of current position.
    // Is there an insertion operation before the last equality.
    preIns = false;
    // Is there a deletion operation before the last equality.
    preDel = false;
    // Is there an insertion operation after the last equality.
    postIns = false;
    // Is there a deletion operation after the last equality.
    postDel = false;
    while ( pointer < diffs.length ) {
      if ( diffs[ pointer ][ 0 ] === DIFF_EQUAL ) { // Equality found.
        if ( diffs[ pointer ][ 1 ].length < this.DiffEditCost && ( postIns || postDel ) ) {
          // Candidate found.
          equalities[ equalitiesLength++ ] = pointer;
          preIns = postIns;
          preDel = postDel;
          lastequality = diffs[ pointer ][ 1 ];
        } else {
          // Not a candidate, and can never become one.
          equalitiesLength = 0;
          lastequality = null;
        }
        postIns = postDel = false;
      } else { // An insertion or deletion.
        if ( diffs[ pointer ][ 0 ] === DIFF_DELETE ) {
          postDel = true;
        } else {
          postIns = true;
        }
        /*
         * Five types to be split:
         * <ins>A</ins><del>B</del>XY<ins>C</ins><del>D</del>
         * <ins>A</ins>X<ins>C</ins><del>D</del>
         * <ins>A</ins><del>B</del>X<ins>C</ins>
         * <ins>A</del>X<ins>C</ins><del>D</del>
         * <ins>A</ins><del>B</del>X<del>C</del>
         */
        if ( lastequality && ( ( preIns && preDel && postIns && postDel ) ||
          ( ( lastequality.length < this.DiffEditCost / 2 ) &&
          ( preIns + preDel + postIns + postDel ) === 3 ) ) ) {
          // Duplicate record.
          diffs.splice( equalities[equalitiesLength - 1], 0, [ DIFF_DELETE, lastequality ] );
          // Change second copy to insert.
          diffs[ equalities[ equalitiesLength - 1 ] + 1 ][ 0 ] = DIFF_INSERT;
          equalitiesLength--; // Throw away the equality we just deleted;
          lastequality = null;
          if (preIns && preDel) {
            // No changes made which could affect previous entry, keep going.
            postIns = postDel = true;
            equalitiesLength = 0;
          } else {
            equalitiesLength--; // Throw away the previous equality.
            pointer = equalitiesLength > 0 ? equalities[ equalitiesLength - 1 ] : -1;
            postIns = postDel = false;
          }
          changes = true;
        }
      }
      pointer++;
    }

    if ( changes ) {
      this.diffCleanupMerge( diffs );
    }
  };

  /**
   * Convert a diff array into a pretty HTML report.
   * @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
   * @param {integer} string to be beautified.
   * @return {string} HTML representation.
   */
  DiffMatchPatch.prototype.diffPrettyHtml = function( diffs ) {
    var op, data, x, html = [];
    for ( x = 0; x < diffs.length; x++ ) {
      op = diffs[x][0]; // Operation (insert, delete, equal)
      data = diffs[x][1]; // Text of change.
      switch ( op ) {
        case DIFF_INSERT:
          html[x] = "<ins>" + data + "</ins>";
          break;
        case DIFF_DELETE:
          html[x] = "<del>" + data + "</del>";
          break;
        case DIFF_EQUAL:
          html[x] = "<span>" + data + "</span>";
          break;
      }
    }
    return html.join("");
  };

  /**
   * Determine the common prefix of two strings.
   * @param {string} text1 First string.
   * @param {string} text2 Second string.
   * @return {number} The number of characters common to the start of each
   *     string.
   */
  DiffMatchPatch.prototype.diffCommonPrefix = function( text1, text2 ) {
    var pointermid, pointermax, pointermin, pointerstart;
    // Quick check for common null cases.
    if ( !text1 || !text2 || text1.charAt(0) !== text2.charAt(0) ) {
      return 0;
    }
    // Binary search.
    // Performance analysis: http://neil.fraser.name/news/2007/10/09/
    pointermin = 0;
    pointermax = Math.min( text1.length, text2.length );
    pointermid = pointermax;
    pointerstart = 0;
    while ( pointermin < pointermid ) {
      if ( text1.substring( pointerstart, pointermid ) === text2.substring( pointerstart, pointermid ) ) {
        pointermin = pointermid;
        pointerstart = pointermin;
      } else {
        pointermax = pointermid;
      }
      pointermid = Math.floor( ( pointermax - pointermin ) / 2 + pointermin );
    }
    return pointermid;
  };

  /**
   * Determine the common suffix of two strings.
   * @param {string} text1 First string.
   * @param {string} text2 Second string.
   * @return {number} The number of characters common to the end of each string.
   */
  DiffMatchPatch.prototype.diffCommonSuffix = function( text1, text2 ) {
    var pointermid, pointermax, pointermin, pointerend;
    // Quick check for common null cases.
    if (!text1 || !text2 || text1.charAt(text1.length - 1) !== text2.charAt(text2.length - 1)) {
      return 0;
    }
    // Binary search.
    // Performance analysis: http://neil.fraser.name/news/2007/10/09/
    pointermin = 0;
    pointermax = Math.min(text1.length, text2.length);
    pointermid = pointermax;
    pointerend = 0;
    while ( pointermin < pointermid ) {
      if (text1.substring( text1.length - pointermid, text1.length - pointerend ) ===
        text2.substring( text2.length - pointermid, text2.length - pointerend ) ) {
        pointermin = pointermid;
        pointerend = pointermin;
      } else {
        pointermax = pointermid;
      }
      pointermid = Math.floor( ( pointermax - pointermin ) / 2 + pointermin );
    }
    return pointermid;
  };

  /**
   * Find the differences between two texts.  Assumes that the texts do not
   * have any common prefix or suffix.
   * @param {string} text1 Old string to be diffed.
   * @param {string} text2 New string to be diffed.
   * @param {boolean} checklines Speedup flag.  If false, then don't run a
   *     line-level diff first to identify the changed areas.
   *     If true, then run a faster, slightly less optimal diff.
   * @param {number} deadline Time when the diff should be complete by.
   * @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
   * @private
   */
  DiffMatchPatch.prototype.diffCompute = function( text1, text2, checklines, deadline ) {
    var diffs, longtext, shorttext, i, hm,
      text1A, text2A, text1B, text2B,
      midCommon, diffsA, diffsB;

    if ( !text1 ) {
      // Just add some text (speedup).
      return [
        [ DIFF_INSERT, text2 ]
      ];
    }

    if (!text2) {
      // Just delete some text (speedup).
      return [
        [ DIFF_DELETE, text1 ]
      ];
    }

    longtext = text1.length > text2.length ? text1 : text2;
    shorttext = text1.length > text2.length ? text2 : text1;
    i = longtext.indexOf( shorttext );
    if ( i !== -1 ) {
      // Shorter text is inside the longer text (speedup).
      diffs = [
        [ DIFF_INSERT, longtext.substring( 0, i ) ],
        [ DIFF_EQUAL, shorttext ],
        [ DIFF_INSERT, longtext.substring( i + shorttext.length ) ]
      ];
      // Swap insertions for deletions if diff is reversed.
      if ( text1.length > text2.length ) {
        diffs[0][0] = diffs[2][0] = DIFF_DELETE;
      }
      return diffs;
    }

    if ( shorttext.length === 1 ) {
      // Single character string.
      // After the previous speedup, the character can't be an equality.
      return [
        [ DIFF_DELETE, text1 ],
        [ DIFF_INSERT, text2 ]
      ];
    }

    // Check to see if the problem can be split in two.
    hm = this.diffHalfMatch(text1, text2);
    if (hm) {
      // A half-match was found, sort out the return data.
      text1A = hm[0];
      text1B = hm[1];
      text2A = hm[2];
      text2B = hm[3];
      midCommon = hm[4];
      // Send both pairs off for separate processing.
      diffsA = this.DiffMain(text1A, text2A, checklines, deadline);
      diffsB = this.DiffMain(text1B, text2B, checklines, deadline);
      // Merge the results.
      return diffsA.concat([
        [ DIFF_EQUAL, midCommon ]
      ], diffsB);
    }

    if (checklines && text1.length > 100 && text2.length > 100) {
      return this.diffLineMode(text1, text2, deadline);
    }

    return this.diffBisect(text1, text2, deadline);
  };

  /**
   * Do the two texts share a substring which is at least half the length of the
   * longer text?
   * This speedup can produce non-minimal diffs.
   * @param {string} text1 First string.
   * @param {string} text2 Second string.
   * @return {Array.<string>} Five element Array, containing the prefix of
   *     text1, the suffix of text1, the prefix of text2, the suffix of
   *     text2 and the common middle.  Or null if there was no match.
   * @private
   */
  DiffMatchPatch.prototype.diffHalfMatch = function(text1, text2) {
    var longtext, shorttext, dmp,
      text1A, text2B, text2A, text1B, midCommon,
      hm1, hm2, hm;
    if (this.DiffTimeout <= 0) {
      // Don't risk returning a non-optimal diff if we have unlimited time.
      return null;
    }
    longtext = text1.length > text2.length ? text1 : text2;
    shorttext = text1.length > text2.length ? text2 : text1;
    if (longtext.length < 4 || shorttext.length * 2 < longtext.length) {
      return null; // Pointless.
    }
    dmp = this; // 'this' becomes 'window' in a closure.

    /**
     * Does a substring of shorttext exist within longtext such that the substring
     * is at least half the length of longtext?
     * Closure, but does not reference any external variables.
     * @param {string} longtext Longer string.
     * @param {string} shorttext Shorter string.
     * @param {number} i Start index of quarter length substring within longtext.
     * @return {Array.<string>} Five element Array, containing the prefix of
     *     longtext, the suffix of longtext, the prefix of shorttext, the suffix
     *     of shorttext and the common middle.  Or null if there was no match.
     * @private
     */
    function diffHalfMatchI(longtext, shorttext, i) {
      var seed, j, bestCommon, prefixLength, suffixLength,
        bestLongtextA, bestLongtextB, bestShorttextA, bestShorttextB;
      // Start with a 1/4 length substring at position i as a seed.
      seed = longtext.substring(i, i + Math.floor(longtext.length / 4));
      j = -1;
      bestCommon = "";
      while ((j = shorttext.indexOf(seed, j + 1)) !== -1) {
        prefixLength = dmp.diffCommonPrefix(longtext.substring(i),
          shorttext.substring(j));
        suffixLength = dmp.diffCommonSuffix(longtext.substring(0, i),
          shorttext.substring(0, j));
        if (bestCommon.length < suffixLength + prefixLength) {
          bestCommon = shorttext.substring(j - suffixLength, j) +
            shorttext.substring(j, j + prefixLength);
          bestLongtextA = longtext.substring(0, i - suffixLength);
          bestLongtextB = longtext.substring(i + prefixLength);
          bestShorttextA = shorttext.substring(0, j - suffixLength);
          bestShorttextB = shorttext.substring(j + prefixLength);
        }
      }
      if (bestCommon.length * 2 >= longtext.length) {
        return [ bestLongtextA, bestLongtextB,
          bestShorttextA, bestShorttextB, bestCommon
        ];
      } else {
        return null;
      }
    }

    // First check if the second quarter is the seed for a half-match.
    hm1 = diffHalfMatchI(longtext, shorttext,
      Math.ceil(longtext.length / 4));
    // Check again based on the third quarter.
    hm2 = diffHalfMatchI(longtext, shorttext,
      Math.ceil(longtext.length / 2));
    if (!hm1 && !hm2) {
      return null;
    } else if (!hm2) {
      hm = hm1;
    } else if (!hm1) {
      hm = hm2;
    } else {
      // Both matched.  Select the longest.
      hm = hm1[4].length > hm2[4].length ? hm1 : hm2;
    }

    // A half-match was found, sort out the return data.
    text1A, text1B, text2A, text2B;
    if (text1.length > text2.length) {
      text1A = hm[0];
      text1B = hm[1];
      text2A = hm[2];
      text2B = hm[3];
    } else {
      text2A = hm[0];
      text2B = hm[1];
      text1A = hm[2];
      text1B = hm[3];
    }
    midCommon = hm[4];
    return [ text1A, text1B, text2A, text2B, midCommon ];
  };

  /**
   * Do a quick line-level diff on both strings, then rediff the parts for
   * greater accuracy.
   * This speedup can produce non-minimal diffs.
   * @param {string} text1 Old string to be diffed.
   * @param {string} text2 New string to be diffed.
   * @param {number} deadline Time when the diff should be complete by.
   * @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
   * @private
   */
  DiffMatchPatch.prototype.diffLineMode = function(text1, text2, deadline) {
    var a, diffs, linearray, pointer, countInsert,
      countDelete, textInsert, textDelete, j;
    // Scan the text on a line-by-line basis first.
    a = this.diffLinesToChars(text1, text2);
    text1 = a.chars1;
    text2 = a.chars2;
    linearray = a.lineArray;

    diffs = this.DiffMain(text1, text2, false, deadline);

    // Convert the diff back to original text.
    this.diffCharsToLines(diffs, linearray);
    // Eliminate freak matches (e.g. blank lines)
    this.diffCleanupSemantic(diffs);

    // Rediff any replacement blocks, this time character-by-character.
    // Add a dummy entry at the end.
    diffs.push( [ DIFF_EQUAL, "" ] );
    pointer = 0;
    countDelete = 0;
    countInsert = 0;
    textDelete = "";
    textInsert = "";
    while (pointer < diffs.length) {
      switch ( diffs[pointer][0] ) {
        case DIFF_INSERT:
          countInsert++;
          textInsert += diffs[pointer][1];
          break;
        case DIFF_DELETE:
          countDelete++;
          textDelete += diffs[pointer][1];
          break;
        case DIFF_EQUAL:
          // Upon reaching an equality, check for prior redundancies.
          if (countDelete >= 1 && countInsert >= 1) {
            // Delete the offending records and add the merged ones.
            diffs.splice(pointer - countDelete - countInsert,
              countDelete + countInsert);
            pointer = pointer - countDelete - countInsert;
            a = this.DiffMain(textDelete, textInsert, false, deadline);
            for (j = a.length - 1; j >= 0; j--) {
              diffs.splice( pointer, 0, a[j] );
            }
            pointer = pointer + a.length;
          }
          countInsert = 0;
          countDelete = 0;
          textDelete = "";
          textInsert = "";
          break;
      }
      pointer++;
    }
    diffs.pop(); // Remove the dummy entry at the end.

    return diffs;
  };

  /**
   * Find the 'middle snake' of a diff, split the problem in two
   * and return the recursively constructed diff.
   * See Myers 1986 paper: An O(ND) Difference Algorithm and Its Variations.
   * @param {string} text1 Old string to be diffed.
   * @param {string} text2 New string to be diffed.
   * @param {number} deadline Time at which to bail if not yet complete.
   * @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
   * @private
   */
  DiffMatchPatch.prototype.diffBisect = function(text1, text2, deadline) {
    var text1Length, text2Length, maxD, vOffset, vLength,
      v1, v2, x, delta, front, k1start, k1end, k2start,
      k2end, k2Offset, k1Offset, x1, x2, y1, y2, d, k1, k2;
    // Cache the text lengths to prevent multiple calls.
    text1Length = text1.length;
    text2Length = text2.length;
    maxD = Math.ceil((text1Length + text2Length) / 2);
    vOffset = maxD;
    vLength = 2 * maxD;
    v1 = new Array(vLength);
    v2 = new Array(vLength);
    // Setting all elements to -1 is faster in Chrome & Firefox than mixing
    // integers and undefined.
    for (x = 0; x < vLength; x++) {
      v1[x] = -1;
      v2[x] = -1;
    }
    v1[vOffset + 1] = 0;
    v2[vOffset + 1] = 0;
    delta = text1Length - text2Length;
    // If the total number of characters is odd, then the front path will collide
    // with the reverse path.
    front = (delta % 2 !== 0);
    // Offsets for start and end of k loop.
    // Prevents mapping of space beyond the grid.
    k1start = 0;
    k1end = 0;
    k2start = 0;
    k2end = 0;
    for (d = 0; d < maxD; d++) {
      // Bail out if deadline is reached.
      if ((new Date()).getTime() > deadline) {
        break;
      }

      // Walk the front path one step.
      for (k1 = -d + k1start; k1 <= d - k1end; k1 += 2) {
        k1Offset = vOffset + k1;
        if ( k1 === -d || ( k1 !== d && v1[ k1Offset - 1 ] < v1[ k1Offset + 1 ] ) ) {
          x1 = v1[k1Offset + 1];
        } else {
          x1 = v1[k1Offset - 1] + 1;
        }
        y1 = x1 - k1;
        while (x1 < text1Length && y1 < text2Length &&
        text1.charAt(x1) === text2.charAt(y1)) {
          x1++;
          y1++;
        }
        v1[k1Offset] = x1;
        if (x1 > text1Length) {
          // Ran off the right of the graph.
          k1end += 2;
        } else if (y1 > text2Length) {
          // Ran off the bottom of the graph.
          k1start += 2;
        } else if (front) {
          k2Offset = vOffset + delta - k1;
          if (k2Offset >= 0 && k2Offset < vLength && v2[k2Offset] !== -1) {
            // Mirror x2 onto top-left coordinate system.
            x2 = text1Length - v2[k2Offset];
            if (x1 >= x2) {
              // Overlap detected.
              return this.diffBisectSplit(text1, text2, x1, y1, deadline);
            }
          }
        }
      }

      // Walk the reverse path one step.
      for (k2 = -d + k2start; k2 <= d - k2end; k2 += 2) {
        k2Offset = vOffset + k2;
        if ( k2 === -d || (k2 !== d && v2[ k2Offset - 1 ] < v2[ k2Offset + 1 ] ) ) {
          x2 = v2[k2Offset + 1];
        } else {
          x2 = v2[k2Offset - 1] + 1;
        }
        y2 = x2 - k2;
        while (x2 < text1Length && y2 < text2Length &&
        text1.charAt(text1Length - x2 - 1) ===
        text2.charAt(text2Length - y2 - 1)) {
          x2++;
          y2++;
        }
        v2[k2Offset] = x2;
        if (x2 > text1Length) {
          // Ran off the left of the graph.
          k2end += 2;
        } else if (y2 > text2Length) {
          // Ran off the top of the graph.
          k2start += 2;
        } else if (!front) {
          k1Offset = vOffset + delta - k2;
          if (k1Offset >= 0 && k1Offset < vLength && v1[k1Offset] !== -1) {
            x1 = v1[k1Offset];
            y1 = vOffset + x1 - k1Offset;
            // Mirror x2 onto top-left coordinate system.
            x2 = text1Length - x2;
            if (x1 >= x2) {
              // Overlap detected.
              return this.diffBisectSplit(text1, text2, x1, y1, deadline);
            }
          }
        }
      }
    }
    // Diff took too long and hit the deadline or
    // number of diffs equals number of characters, no commonality at all.
    return [
      [ DIFF_DELETE, text1 ],
      [ DIFF_INSERT, text2 ]
    ];
  };

  /**
   * Given the location of the 'middle snake', split the diff in two parts
   * and recurse.
   * @param {string} text1 Old string to be diffed.
   * @param {string} text2 New string to be diffed.
   * @param {number} x Index of split point in text1.
   * @param {number} y Index of split point in text2.
   * @param {number} deadline Time at which to bail if not yet complete.
   * @return {!Array.<!DiffMatchPatch.Diff>} Array of diff tuples.
   * @private
   */
  DiffMatchPatch.prototype.diffBisectSplit = function( text1, text2, x, y, deadline ) {
    var text1a, text1b, text2a, text2b, diffs, diffsb;
    text1a = text1.substring(0, x);
    text2a = text2.substring(0, y);
    text1b = text1.substring(x);
    text2b = text2.substring(y);

    // Compute both diffs serially.
    diffs = this.DiffMain(text1a, text2a, false, deadline);
    diffsb = this.DiffMain(text1b, text2b, false, deadline);

    return diffs.concat(diffsb);
  };

  /**
   * Reduce the number of edits by eliminating semantically trivial equalities.
   * @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
   */
  DiffMatchPatch.prototype.diffCleanupSemantic = function(diffs) {
    var changes, equalities, equalitiesLength, lastequality,
      pointer, lengthInsertions2, lengthDeletions2, lengthInsertions1,
      lengthDeletions1, deletion, insertion, overlapLength1, overlapLength2;
    changes = false;
    equalities = []; // Stack of indices where equalities are found.
    equalitiesLength = 0; // Keeping our own length var is faster in JS.
    /** @type {?string} */
    lastequality = null;
    // Always equal to diffs[equalities[equalitiesLength - 1]][1]
    pointer = 0; // Index of current position.
    // Number of characters that changed prior to the equality.
    lengthInsertions1 = 0;
    lengthDeletions1 = 0;
    // Number of characters that changed after the equality.
    lengthInsertions2 = 0;
    lengthDeletions2 = 0;
    while (pointer < diffs.length) {
      if (diffs[pointer][0] === DIFF_EQUAL) { // Equality found.
        equalities[equalitiesLength++] = pointer;
        lengthInsertions1 = lengthInsertions2;
        lengthDeletions1 = lengthDeletions2;
        lengthInsertions2 = 0;
        lengthDeletions2 = 0;
        lastequality = diffs[pointer][1];
      } else { // An insertion or deletion.
        if (diffs[pointer][0] === DIFF_INSERT) {
          lengthInsertions2 += diffs[pointer][1].length;
        } else {
          lengthDeletions2 += diffs[pointer][1].length;
        }
        // Eliminate an equality that is smaller or equal to the edits on both
        // sides of it.
        if (lastequality && (lastequality.length <=
          Math.max(lengthInsertions1, lengthDeletions1)) &&
          (lastequality.length <= Math.max(lengthInsertions2,
            lengthDeletions2))) {
          // Duplicate record.
          diffs.splice( equalities[ equalitiesLength - 1 ], 0, [ DIFF_DELETE, lastequality ] );
          // Change second copy to insert.
          diffs[equalities[equalitiesLength - 1] + 1][0] = DIFF_INSERT;
          // Throw away the equality we just deleted.
          equalitiesLength--;
          // Throw away the previous equality (it needs to be reevaluated).
          equalitiesLength--;
          pointer = equalitiesLength > 0 ? equalities[equalitiesLength - 1] : -1;
          lengthInsertions1 = 0; // Reset the counters.
          lengthDeletions1 = 0;
          lengthInsertions2 = 0;
          lengthDeletions2 = 0;
          lastequality = null;
          changes = true;
        }
      }
      pointer++;
    }

    // Normalize the diff.
    if (changes) {
      this.diffCleanupMerge(diffs);
    }

    // Find any overlaps between deletions and insertions.
    // e.g: <del>abcxxx</del><ins>xxxdef</ins>
    //   -> <del>abc</del>xxx<ins>def</ins>
    // e.g: <del>xxxabc</del><ins>defxxx</ins>
    //   -> <ins>def</ins>xxx<del>abc</del>
    // Only extract an overlap if it is as big as the edit ahead or behind it.
    pointer = 1;
    while (pointer < diffs.length) {
      if (diffs[pointer - 1][0] === DIFF_DELETE &&
        diffs[pointer][0] === DIFF_INSERT) {
        deletion = diffs[pointer - 1][1];
        insertion = diffs[pointer][1];
        overlapLength1 = this.diffCommonOverlap(deletion, insertion);
        overlapLength2 = this.diffCommonOverlap(insertion, deletion);
        if (overlapLength1 >= overlapLength2) {
          if (overlapLength1 >= deletion.length / 2 ||
            overlapLength1 >= insertion.length / 2) {
            // Overlap found.  Insert an equality and trim the surrounding edits.
            diffs.splice( pointer, 0, [ DIFF_EQUAL, insertion.substring( 0, overlapLength1 ) ] );
            diffs[pointer - 1][1] =
              deletion.substring(0, deletion.length - overlapLength1);
            diffs[pointer + 1][1] = insertion.substring(overlapLength1);
            pointer++;
          }
        } else {
          if (overlapLength2 >= deletion.length / 2 ||
            overlapLength2 >= insertion.length / 2) {
            // Reverse overlap found.
            // Insert an equality and swap and trim the surrounding edits.
            diffs.splice( pointer, 0, [ DIFF_EQUAL, deletion.substring( 0, overlapLength2 ) ] );
            diffs[pointer - 1][0] = DIFF_INSERT;
            diffs[pointer - 1][1] =
              insertion.substring(0, insertion.length - overlapLength2);
            diffs[pointer + 1][0] = DIFF_DELETE;
            diffs[pointer + 1][1] =
              deletion.substring(overlapLength2);
            pointer++;
          }
        }
        pointer++;
      }
      pointer++;
    }
  };

  /**
   * Determine if the suffix of one string is the prefix of another.
   * @param {string} text1 First string.
   * @param {string} text2 Second string.
   * @return {number} The number of characters common to the end of the first
   *     string and the start of the second string.
   * @private
   */
  DiffMatchPatch.prototype.diffCommonOverlap = function(text1, text2) {
    var text1Length, text2Length, textLength,
      best, length, pattern, found;
    // Cache the text lengths to prevent multiple calls.
    text1Length = text1.length;
    text2Length = text2.length;
    // Eliminate the null case.
    if (text1Length === 0 || text2Length === 0) {
      return 0;
    }
    // Truncate the longer string.
    if (text1Length > text2Length) {
      text1 = text1.substring(text1Length - text2Length);
    } else if (text1Length < text2Length) {
      text2 = text2.substring(0, text1Length);
    }
    textLength = Math.min(text1Length, text2Length);
    // Quick check for the worst case.
    if (text1 === text2) {
      return textLength;
    }

    // Start by looking for a single character match
    // and increase length until no match is found.
    // Performance analysis: http://neil.fraser.name/news/2010/11/04/
    best = 0;
    length = 1;
    while (true) {
      pattern = text1.substring(textLength - length);
      found = text2.indexOf(pattern);
      if (found === -1) {
        return best;
      }
      length += found;
      if (found === 0 || text1.substring(textLength - length) ===
        text2.substring(0, length)) {
        best = length;
        length++;
      }
    }
  };

  /**
   * Split two texts into an array of strings.  Reduce the texts to a string of
   * hashes where each Unicode character represents one line.
   * @param {string} text1 First string.
   * @param {string} text2 Second string.
   * @return {{chars1: string, chars2: string, lineArray: !Array.<string>}}
   *     An object containing the encoded text1, the encoded text2 and
   *     the array of unique strings.
   *     The zeroth element of the array of unique strings is intentionally blank.
   * @private
   */
  DiffMatchPatch.prototype.diffLinesToChars = function(text1, text2) {
    var lineArray, lineHash, chars1, chars2;
    lineArray = []; // e.g. lineArray[4] === 'Hello\n'
    lineHash = {}; // e.g. lineHash['Hello\n'] === 4

    // '\x00' is a valid character, but various debuggers don't like it.
    // So we'll insert a junk entry to avoid generating a null character.
    lineArray[0] = "";

    /**
     * Split a text into an array of strings.  Reduce the texts to a string of
     * hashes where each Unicode character represents one line.
     * Modifies linearray and linehash through being a closure.
     * @param {string} text String to encode.
     * @return {string} Encoded string.
     * @private
     */
    function diffLinesToCharsMunge(text) {
      var chars, lineStart, lineEnd, lineArrayLength, line;
      chars = "";
      // Walk the text, pulling out a substring for each line.
      // text.split('\n') would would temporarily double our memory footprint.
      // Modifying text would create many large strings to garbage collect.
      lineStart = 0;
      lineEnd = -1;
      // Keeping our own length variable is faster than looking it up.
      lineArrayLength = lineArray.length;
      while (lineEnd < text.length - 1) {
        lineEnd = text.indexOf("\n", lineStart);
        if (lineEnd === -1) {
          lineEnd = text.length - 1;
        }
        line = text.substring(lineStart, lineEnd + 1);
        lineStart = lineEnd + 1;

        if (lineHash.hasOwnProperty ? lineHash.hasOwnProperty(line) :
            (lineHash[line] !== undefined)) {
          chars += String.fromCharCode( lineHash[ line ] );
        } else {
          chars += String.fromCharCode(lineArrayLength);
          lineHash[line] = lineArrayLength;
          lineArray[lineArrayLength++] = line;
        }
      }
      return chars;
    }

    chars1 = diffLinesToCharsMunge(text1);
    chars2 = diffLinesToCharsMunge(text2);
    return {
      chars1: chars1,
      chars2: chars2,
      lineArray: lineArray
    };
  };

  /**
   * Rehydrate the text in a diff from a string of line hashes to real lines of
   * text.
   * @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
   * @param {!Array.<string>} lineArray Array of unique strings.
   * @private
   */
  DiffMatchPatch.prototype.diffCharsToLines = function( diffs, lineArray ) {
    var x, chars, text, y;
    for ( x = 0; x < diffs.length; x++ ) {
      chars = diffs[x][1];
      text = [];
      for ( y = 0; y < chars.length; y++ ) {
        text[y] = lineArray[chars.charCodeAt(y)];
      }
      diffs[x][1] = text.join("");
    }
  };

  /**
   * Reorder and merge like edit sections.  Merge equalities.
   * Any edit section can move as long as it doesn't cross an equality.
   * @param {!Array.<!DiffMatchPatch.Diff>} diffs Array of diff tuples.
   */
  DiffMatchPatch.prototype.diffCleanupMerge = function(diffs) {
    var pointer, countDelete, countInsert, textInsert, textDelete,
      commonlength, changes;
    diffs.push( [ DIFF_EQUAL, "" ] ); // Add a dummy entry at the end.
    pointer = 0;
    countDelete = 0;
    countInsert = 0;
    textDelete = "";
    textInsert = "";
    commonlength;
    while (pointer < diffs.length) {
      switch ( diffs[ pointer ][ 0 ] ) {
        case DIFF_INSERT:
          countInsert++;
          textInsert += diffs[pointer][1];
          pointer++;
          break;
        case DIFF_DELETE:
          countDelete++;
          textDelete += diffs[pointer][1];
          pointer++;
          break;
        case DIFF_EQUAL:
          // Upon reaching an equality, check for prior redundancies.
          if (countDelete + countInsert > 1) {
            if (countDelete !== 0 && countInsert !== 0) {
              // Factor out any common prefixies.
              commonlength = this.diffCommonPrefix(textInsert, textDelete);
              if (commonlength !== 0) {
                if ((pointer - countDelete - countInsert) > 0 &&
                  diffs[pointer - countDelete - countInsert - 1][0] ===
                  DIFF_EQUAL) {
                  diffs[pointer - countDelete - countInsert - 1][1] +=
                    textInsert.substring(0, commonlength);
                } else {
                  diffs.splice( 0, 0, [ DIFF_EQUAL,
                    textInsert.substring( 0, commonlength )
                  ] );
                  pointer++;
                }
                textInsert = textInsert.substring(commonlength);
                textDelete = textDelete.substring(commonlength);
              }
              // Factor out any common suffixies.
              commonlength = this.diffCommonSuffix(textInsert, textDelete);
              if (commonlength !== 0) {
                diffs[pointer][1] = textInsert.substring(textInsert.length -
                    commonlength) + diffs[pointer][1];
                textInsert = textInsert.substring(0, textInsert.length -
                  commonlength);
                textDelete = textDelete.substring(0, textDelete.length -
                  commonlength);
              }
            }
            // Delete the offending records and add the merged ones.
            if (countDelete === 0) {
              diffs.splice( pointer - countInsert,
                countDelete + countInsert, [ DIFF_INSERT, textInsert ] );
            } else if (countInsert === 0) {
              diffs.splice( pointer - countDelete,
                countDelete + countInsert, [ DIFF_DELETE, textDelete ] );
            } else {
              diffs.splice( pointer - countDelete - countInsert,
                countDelete + countInsert, [ DIFF_DELETE, textDelete ], [ DIFF_INSERT, textInsert ] );
            }
            pointer = pointer - countDelete - countInsert +
              (countDelete ? 1 : 0) + (countInsert ? 1 : 0) + 1;
          } else if (pointer !== 0 && diffs[pointer - 1][0] === DIFF_EQUAL) {
            // Merge this equality with the previous one.
            diffs[pointer - 1][1] += diffs[pointer][1];
            diffs.splice(pointer, 1);
          } else {
            pointer++;
          }
          countInsert = 0;
          countDelete = 0;
          textDelete = "";
          textInsert = "";
          break;
      }
    }
    if (diffs[diffs.length - 1][1] === "") {
      diffs.pop(); // Remove the dummy entry at the end.
    }

    // Second pass: look for single edits surrounded on both sides by equalities
    // which can be shifted sideways to eliminate an equality.
    // e.g: A<ins>BA</ins>C -> <ins>AB</ins>AC
    changes = false;
    pointer = 1;
    // Intentionally ignore the first and last element (don't need checking).
    while (pointer < diffs.length - 1) {
      if (diffs[pointer - 1][0] === DIFF_EQUAL &&
        diffs[pointer + 1][0] === DIFF_EQUAL) {
        // This is a single edit surrounded by equalities.
        if ( diffs[ pointer ][ 1 ].substring( diffs[ pointer ][ 1 ].length -
            diffs[ pointer - 1 ][ 1 ].length ) === diffs[ pointer - 1 ][ 1 ] ) {
          // Shift the edit over the previous equality.
          diffs[pointer][1] = diffs[pointer - 1][1] +
            diffs[pointer][1].substring(0, diffs[pointer][1].length -
              diffs[pointer - 1][1].length);
          diffs[pointer + 1][1] = diffs[pointer - 1][1] + diffs[pointer + 1][1];
          diffs.splice(pointer - 1, 1);
          changes = true;
        } else if ( diffs[ pointer ][ 1 ].substring( 0, diffs[ pointer + 1 ][ 1 ].length ) ===
          diffs[ pointer + 1 ][ 1 ] ) {
          // Shift the edit over the next equality.
          diffs[pointer - 1][1] += diffs[pointer + 1][1];
          diffs[pointer][1] =
            diffs[pointer][1].substring(diffs[pointer + 1][1].length) +
            diffs[pointer + 1][1];
          diffs.splice(pointer + 1, 1);
          changes = true;
        }
      }
      pointer++;
    }
    // If shifts were made, the diff needs reordering and another shift sweep.
    if (changes) {
      this.diffCleanupMerge(diffs);
    }
  };

  return function(o, n) {
    var diff, output, text;
    diff = new DiffMatchPatch();
    output = diff.DiffMain(o, n);
    //console.log(output);
    diff.diffCleanupEfficiency(output);
    text = diff.diffPrettyHtml(output);

    return text;
  };
}());
// jscs:enable

(function() {

// Deprecated QUnit.init - Ref #530
// Re-initialize the configuration options
  QUnit.init = function() {
    var tests, banner, result, qunit,
      config = QUnit.config;

    config.stats = { all: 0, bad: 0 };
    config.moduleStats = { all: 0, bad: 0 };
    config.started = 0;
    config.updateRate = 1000;
    config.blocking = false;
    config.autostart = true;
    config.autorun = false;
    config.filter = "";
    config.queue = [];

    // Return on non-browser environments
    // This is necessary to not break on node tests
    if ( typeof window === "undefined" ) {
      return;
    }

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

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

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

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

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

    if ( tests ) {
      result = document.createElement( "p" );
      result.id = "qunit-testresult";
      result.className = "result";
      tests.parentNode.insertBefore( result, tests );
      result.innerHTML = "Running...<br />&#160;";
    }
  };

// Don't load the HTML Reporter on non-Browser environments
  if ( typeof window === "undefined" ) {
    return;
  }

  var config = QUnit.config,
    hasOwn = Object.prototype.hasOwnProperty,
    defined = {
      document: window.document !== undefined,
      sessionStorage: (function() {
        var x = "qunit-test-string";
        try {
          sessionStorage.setItem( x, x );
          sessionStorage.removeItem( x );
          return true;
        } catch ( e ) {
          return false;
        }
      }())
    },
    modulesList = [];

  /**
   * Escape text for attribute or text content.
   */
  function escapeText( s ) {
    if ( !s ) {
      return "";
    }
    s = s + "";

    // Both single quotes and double quotes (for attributes)
    return s.replace( /['"<>&]/g, function( s ) {
      switch ( s ) {
        case "'":
          return "&#039;";
        case "\"":
          return "&quot;";
        case "<":
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        case ">":
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        case "&":
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   * @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, function() {
        var event = window.event;
        if ( !event.target ) {
          event.target = event.srcElement || document;
        }

        fn.call( elem, event );
      });
    }
  }

  /**
   * @param {Array|NodeList} elems
   * @param {string} type
   * @param {Function} fn
   */
  function addEvents( elems, type, fn ) {
    var i = elems.length;
    while ( i-- ) {
      addEvent( elems[ i ], type, fn );
    }
  }

  function hasClass( elem, name ) {
    return ( " " + elem.className + " " ).indexOf( " " + name + " " ) >= 0;
  }

  function addClass( elem, name ) {
    if ( !hasClass( elem, name ) ) {
      elem.className += ( elem.className ? " " : "" ) + name;
    }
  }

  function toggleClass( elem, name ) {
    if ( hasClass( elem, name ) ) {
      removeClass( elem, name );
    } else {
      addClass( elem, name );
    }
  }

  function removeClass( elem, name ) {
    var set = " " + elem.className + " ";

    // Class name may appear multiple times
    while ( set.indexOf( " " + name + " " ) >= 0 ) {
      set = set.replace( " " + name + " ", " " );
    }

    // trim for prettiness
    elem.className = typeof set.trim === "function" ? set.trim() : set.replace( /^\s+|\s+$/g, "" );
  }

  function id( name ) {
    return defined.document && document.getElementById && document.getElementById( name );
  }

  function getUrlConfigHtml() {
    var i, j, val,
      escaped, escapedTooltip,
      selection = false,
      len = config.urlConfig.length,
      urlConfigHtml = "";

    for ( i = 0; i < len; i++ ) {
      val = config.urlConfig[ i ];
      if ( typeof val === "string" ) {
        val = {
          id: val,
          label: val
        };
      }

      escaped = escapeText( val.id );
      escapedTooltip = escapeText( val.tooltip );

      if ( config[ val.id ] === undefined ) {
        config[ val.id ] = QUnit.urlParams[ val.id ];
      }

      if ( !val.value || typeof val.value === "string" ) {
        urlConfigHtml += "<input id='qunit-urlconfig-" + escaped +
          "' name='" + escaped + "' type='checkbox'" +
          ( val.value ? " value='" + escapeText( val.value ) + "'" : "" ) +
          ( config[ val.id ] ? " checked='checked'" : "" ) +
          " title='" + escapedTooltip + "' /><label for='qunit-urlconfig-" + escaped +
          "' title='" + escapedTooltip + "'>" + val.label + "</label>";
      } else {
        urlConfigHtml += "<label for='qunit-urlconfig-" + escaped +
          "' title='" + escapedTooltip + "'>" + val.label +
          ": </label><select id='qunit-urlconfig-" + escaped +
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        if ( QUnit.is( "array", val.value ) ) {
          for ( j = 0; j < val.value.length; j++ ) {
            escaped = escapeText( val.value[ j ] );
            urlConfigHtml += "<option value='" + escaped + "'" +
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            }
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        if ( config[ val.id ] && !selection ) {
          escaped = escapeText( config[ val.id ] );
          urlConfigHtml += "<option value='" + escaped +
            "' selected='selected' disabled='disabled'>" + escaped + "</option>";
        }
        urlConfigHtml += "</select>";
      }
    }

    return urlConfigHtml;
  }

// Handle "click" events on toolbar checkboxes and "change" for select menus.
// Updates the URL with the new state of `config.urlConfig` values.
  function toolbarChanged() {
    var updatedUrl, value,
      field = this,
      params = {};

    // Detect if field is a select menu or a checkbox
    if ( "selectedIndex" in field ) {
      value = field.options[ field.selectedIndex ].value || undefined;
    } else {
      value = field.checked ? ( field.defaultValue || true ) : undefined;
    }

    params[ field.name ] = value;
    updatedUrl = setUrl( params );

    if ( "hidepassed" === field.name && "replaceState" in window.history ) {
      config[ field.name ] = value || false;
      if ( value ) {
        addClass( id( "qunit-tests" ), "hidepass" );
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      }

      // It is not necessary to refresh the whole page
      window.history.replaceState( null, "", updatedUrl );
    } else {
      window.location = updatedUrl;
    }
  }

  function setUrl( params ) {
    var key,
      querystring = "?";

    params = QUnit.extend( QUnit.extend( {}, QUnit.urlParams ), params );

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

  function applyUrlParams() {
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      modulesList = id( "qunit-modulefilter" ),
      filter = id( "qunit-filter-input" ).value;

    selectedModule = modulesList ?
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      undefined;

    window.location = setUrl({
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      filter: ( filter === "" ) ? undefined : filter,

      // Remove testId filter
      testId: undefined
    });
  }

  function toolbarUrlConfigContainer() {
    var urlConfigContainer = document.createElement( "span" );

    urlConfigContainer.innerHTML = getUrlConfigHtml();
    addClass( urlConfigContainer, "qunit-url-config" );

    // For oldIE support:
    // * Add handlers to the individual elements instead of the container
    // * Use "click" instead of "change" for checkboxes
    addEvents( urlConfigContainer.getElementsByTagName( "input" ), "click", toolbarChanged );
    addEvents( urlConfigContainer.getElementsByTagName( "select" ), "change", toolbarChanged );

    return urlConfigContainer;
  }

  function toolbarLooseFilter() {
    var filter = document.createElement( "form" ),
      label = document.createElement( "label" ),
      input = document.createElement( "input" ),
      button = document.createElement( "button" );

    addClass( filter, "qunit-filter" );

    label.innerHTML = "Filter: ";

    input.type = "text";
    input.value = config.filter || "";
    input.name = "filter";
    input.id = "qunit-filter-input";

    button.innerHTML = "Go";

    label.appendChild( input );

    filter.appendChild( label );
    filter.appendChild( button );
    addEvent( filter, "submit", function( ev ) {
      applyUrlParams();

      if ( ev && ev.preventDefault ) {
        ev.preventDefault();
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      return false;
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    return filter;
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  function toolbarModuleFilterHtml() {
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    if ( !modulesList.length ) {
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    modulesList.sort(function( a, b ) {
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    });

    moduleFilterHtml += "<label for='qunit-modulefilter'>Module: </label>" +
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      ">< All Modules ></option>";

    for ( i = 0; i < modulesList.length; i++ ) {
      moduleFilterHtml += "<option value='" +
        escapeText( encodeURIComponent( modulesList[ i ] ) ) + "' " +
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    }
    moduleFilterHtml += "</select>";

    return moduleFilterHtml;
  }

  function toolbarModuleFilter() {
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    if ( !toolbar || !moduleFilterHtml ) {
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    moduleFilter.setAttribute( "id", "qunit-modulefilter-container" );
    moduleFilter.innerHTML = moduleFilterHtml;

    addEvent( moduleFilter.lastChild, "change", applyUrlParams );

    toolbar.appendChild( moduleFilter );
  }

  function appendToolbar() {
    var toolbar = id( "qunit-testrunner-toolbar" );

    if ( toolbar ) {
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      toolbar.appendChild( toolbarLooseFilter() );
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  }

  function appendHeader() {
    var header = id( "qunit-header" );

    if ( header ) {
      header.innerHTML = "<a href='" +
        setUrl({ filter: undefined, module: undefined, testId: undefined }) +
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      result = document.createElement( "p" );
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      result.innerHTML = "Running...<br />&#160;";
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  function storeFixture() {
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  function appendUserAgent() {
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    if ( userAgent ) {
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      userAgent.appendChild(
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  function appendTestsList( modules ) {
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      if ( moduleObj.name ) {
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      }

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  function appendTest( name, testId, moduleName ) {
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      tests = id( "qunit-tests" );

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    title = document.createElement( "strong" );
    title.innerHTML = getNameHtml( name, moduleName );

    rerunTrigger = document.createElement( "a" );
    rerunTrigger.innerHTML = "Rerun";
    rerunTrigger.href = setUrl({ testId: testId });

    testBlock = document.createElement( "li" );
    testBlock.appendChild( title );
    testBlock.appendChild( rerunTrigger );
    testBlock.id = "qunit-test-output-" + testId;

    assertList = document.createElement( "ol" );
    assertList.className = "qunit-assert-list";

    testBlock.appendChild( assertList );

    tests.appendChild( testBlock );
  }

// HTML Reporter initialization and load
  QUnit.begin(function( details ) {
    var qunit = id( "qunit" );

    // Fixture is the only one necessary to run without the #qunit element
    storeFixture();

    if ( qunit ) {
      qunit.innerHTML =
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        "<h2 id='qunit-banner'></h2>" +
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        "<h2 id='qunit-userAgent'></h2>" +
        "<ol id='qunit-tests'></ol>";
    }

    appendHeader();
    appendBanner();
    appendTestResults();
    appendUserAgent();
    appendToolbar();
    appendTestsList( details.modules );
    toolbarModuleFilter();

    if ( qunit && config.hidepassed ) {
      addClass( qunit.lastChild, "hidepass" );
    }
  });

  QUnit.done(function( details ) {
    var i, key,
      banner = id( "qunit-banner" ),
      tests = id( "qunit-tests" ),
      html = [
        "Tests completed in ",
        details.runtime,
        " milliseconds.<br />",
        "<span class='passed'>",
        details.passed,
        "</span> assertions of <span class='total'>",
        details.total,
        "</span> passed, <span class='failed'>",
        details.failed,
        "</span> failed."
      ].join( "" );

    if ( banner ) {
      banner.className = details.failed ? "qunit-fail" : "qunit-pass";
    }

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

    if ( config.altertitle && defined.document && document.title ) {

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

    // clear own sessionStorage items if all tests passed
    if ( config.reorder && defined.sessionStorage && details.failed === 0 ) {
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        if ( key.indexOf( "qunit-test-" ) === 0 ) {
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    // scroll back to top to show results
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      window.scrollTo( 0, 0 );
    }
  });

  function getNameHtml( name, module ) {
    var nameHtml = "";

    if ( module ) {
      nameHtml = "<span class='module-name'>" + escapeText( module ) + "</span>: ";
    }

    nameHtml += "<span class='test-name'>" + escapeText( name ) + "</span>";

    return nameHtml;
  }

  QUnit.testStart(function( details ) {
    var running, testBlock, bad;

    testBlock = id( "qunit-test-output-" + details.testId );
    if ( testBlock ) {
      testBlock.className = "running";
    } else {

      // Report later registered tests
      appendTest( details.name, details.testId, details.module );
    }

    running = id( "qunit-testresult" );
    if ( running ) {
      bad = QUnit.config.reorder && defined.sessionStorage &&
        +sessionStorage.getItem( "qunit-test-" + details.module + "-" + details.name );

      running.innerHTML = ( bad ?
          "Rerunning previously failed test: <br />" :
          "Running: <br />" ) +
        getNameHtml( details.name, details.module );
    }

  });

  QUnit.log(function( details ) {
    var assertList, assertLi,
      message, expected, actual,
      testItem = id( "qunit-test-output-" + details.testId );

    if ( !testItem ) {
      return;
    }

    message = escapeText( details.message ) || ( details.result ? "okay" : "failed" );
    message = "<span class='test-message'>" + message + "</span>";
    message += "<span class='runtime'>@ " + details.runtime + " ms</span>";

    // pushFailure doesn't provide details.expected
    // when it calls, it's implicit to also not show expected and diff stuff
    // Also, we need to check details.expected existence, as it can exist and be undefined
    if ( !details.result && hasOwn.call( details, "expected" ) ) {
      expected = escapeText( QUnit.dump.parse( details.expected ) );
      actual = escapeText( QUnit.dump.parse( details.actual ) );
      message += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" +
        expected +
        "</pre></td></tr>";

      if ( actual !== expected ) {
        message += "<tr class='test-actual'><th>Result: </th><td><pre>" +
          actual + "</pre></td></tr>" +
          "<tr class='test-diff'><th>Diff: </th><td><pre>" +
          QUnit.diff( expected, actual ) + "</pre></td></tr>";
      } else {
        if ( expected.indexOf( "[object Array]" ) !== -1 ||
          expected.indexOf( "[object Object]" ) !== -1 ) {
          message += "<tr class='test-message'><th>Message: </th><td>" +
            "Diff suppressed as the depth of object is more than current max depth (" +
            QUnit.config.maxDepth + ").<p>Hint: Use <code>QUnit.dump.maxDepth</code> to " +
            " run with a higher max depth or <a href='" + setUrl({ maxDepth: -1 }) + "'>" +
            "Rerun</a> without max depth.</p></td></tr>";
        }
      }

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

      message += "</table>";

      // this occours when pushFailure is set and we have an extracted stack trace
    } else if ( !details.result && details.source ) {
      message += "<table>" +
        "<tr class='test-source'><th>Source: </th><td><pre>" +
        escapeText( details.source ) + "</pre></td></tr>" +
        "</table>";
    }

    assertList = testItem.getElementsByTagName( "ol" )[ 0 ];

    assertLi = document.createElement( "li" );
    assertLi.className = details.result ? "pass" : "fail";
    assertLi.innerHTML = message;
    assertList.appendChild( assertLi );
  });

  QUnit.testDone(function( details ) {
    var testTitle, time, testItem, assertList,
      good, bad, testCounts, skipped,
      tests = id( "qunit-tests" );

    if ( !tests ) {
      return;
    }

    testItem = id( "qunit-test-output-" + details.testId );

    assertList = testItem.getElementsByTagName( "ol" )[ 0 ];

    good = details.passed;
    bad = details.failed;

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

    if ( bad === 0 ) {
      addClass( assertList, "qunit-collapsed" );
    }

    // testItem.firstChild is the test name
    testTitle = testItem.firstChild;

    testCounts = bad ?
    "<b class='failed'>" + bad + "</b>, " + "<b class='passed'>" + good + "</b>, " :
      "";

    testTitle.innerHTML += " <b class='counts'>(" + testCounts +
      details.assertions.length + ")</b>";

    if ( details.skipped ) {
      testItem.className = "skipped";
      skipped = document.createElement( "em" );
      skipped.className = "qunit-skipped-label";
      skipped.innerHTML = "skipped";
      testItem.insertBefore( skipped, testTitle );
    } else {
      addEvent( testTitle, "click", function() {
        toggleClass( assertList, "qunit-collapsed" );
      });

      testItem.className = bad ? "fail" : "pass";

      time = document.createElement( "span" );
      time.className = "runtime";
      time.innerHTML = details.runtime + " ms";
      testItem.insertBefore( time, assertList );
    }
  });

  if ( defined.document ) {
    if ( document.readyState === "complete" ) {
      QUnit.load();
    } else {
      addEvent( window, "load", QUnit.load );
    }
  } else {
    config.pageLoaded = true;
    config.autorun = true;
  }

})();
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