window.DCE_sink = [];
  var urlParseRE = /^(((([^:\/#\?]+:)?(?:(\/\/)((?:(([^:@\/#\?]+)(?:\:([^:@\/#\?]+))?)@)?(([^:\/#\?\]\[]+|\[[^\/\]@#?]+\])(?:\:([0-9]+))?))?)?)?((\/?(?:[^\/\?#]+\/+)*)([^\?#]*)))?(\?[^#]+)?)(#.*)?/;
  
  var urlParseRE2 = /^(?:(?:(?:([^:\/#\?]+:)?(?:(?:\/\/)((?:((?:[^:@\/#\?]+)(?:\:(?:[^:@\/#\?]+))?)@)?(([^:\/#\?\]\[]+|\[[^\/\]@#?]+\])(?:\:([0-9]+))?))?)?)?((?:\/?(?:[^\/\?#]+\/+)*)(?:[^\?#]*)))?(\?[^#]+)?)(#.*)?/;
  
  var parser = document.createElement('a');
  
  var url = "http://jblas:password@mycompany.com:8080/mail/inbox?msg=1234&type=unread#msg-content";
  
  
  var URL = (function() {
  
    function parseSearch(s) {
      var result = [];
      var k = 0;
      var parts = s.slice(1).split('&');
      for (var i = 0; i < parts.length; i++) {
        var part = parts[i];
        var key = part.split('=', 1)[0];
        if (key) {
          var value = part.slice(key.length + 1);
          result[k++] = [key, value];
        }
      }
      return result;
    }
  
    function serializeParsed(array) {
      return array.map(function(pair) {
        return pair[1] !== '' ? pair.join('=') : pair[0];
      }).join('&');
    }
  
    function URL(url, base) {
      if (!url)
        throw new TypeError('Invalid argument');
  
      var doc = document.implementation.createHTMLDocument('');
      if (base) {
        var baseElement = doc.createElement('base');
        baseElement.href = base || window.lo;
        doc.head.appendChild(baseElement);
      }
      var anchorElement = doc.createElement('a');
      anchorElement.href = url;
      doc.body.appendChild(anchorElement);
  
      if (anchorElement.href === '')
        throw new TypeError('Invalid URL');
  
      Object.defineProperty(this, '_anchorElement', {
        value: anchorElement
      });
    }
  
    URL.prototype = {
      toString: function() {
        return this.href;
      },
      get href() {
        return this._anchorElement.href;
      },
      set href(value) {
        this._anchorElement.href = value;
      },
  
      get protocol() {
        return this._anchorElement.protocol;
      },
      set protocol(value) {
        this._anchorElement.protocol = value;
      },
  
      // NOT IMPLEMENTED
      // get username() {
      //   return this._anchorElement.username;
      // },
      // set username(value) {
      //   this._anchorElement.username = value;
      // },
  
      // get password() {
      //   return this._anchorElement.password;
      // },
      // set password(value) {
      //   this._anchorElement.password = value;
      // },
  
      // get origin() {
      //   return this._anchorElement.origin;
      // },
  
      get host() {
        return this._anchorElement.host;
      },
      set host(value) {
        this._anchorElement.host = value;
      },
  
      get hostname() {
        return this._anchorElement.hostname;
      },
      set hostname(value) {
        this._anchorElement.hostname = value;
      },
  
      get port() {
        return this._anchorElement.port;
      },
      set port(value) {
        this._anchorElement.port = value;
      },
  
      get pathname() {
        return this._anchorElement.pathname;
      },
      set pathname(value) {
        this._anchorElement.pathname = value;
      },
  
      get search() {
        return this._anchorElement.search;
      },
      set search(value) {
        this._anchorElement.search = value;
      },
  
      get hash() {
        return this._anchorElement.hash;
      },
      set hash(value) {
        this._anchorElement.hash = value;
      },
  
      get filename() {
        var match;
        if ((match = this.pathname.match(/\/([^\/]+)$/)))
          return match[1];
        return '';
      },
      set filename(value) {
        var match, pathname = this.pathname;
        if ((match = pathname.match(/\/([^\/]+)$/)))
          this.pathname = pathname.slice(0, -match[1].length) + value;
        else
          this.pathname = value;
      },
  
      get parameterNames() {
        var seen = Object.create(null);
        return parseSearch(this.search).map(function(pair) {
          return pair[0];
        }).filter(function(key) {
          if (key in seen)
            return false;
          seen[key] = true;
          return true;
        });
      },
  
      getParameter: function(name) {
        return this.getParameterAll(name).pop();
      },
  
      getParameterAll: function(name) {
        name = String(name);
        var result = [];
        var k = 0;
        parseSearch(this.search).forEach(function(pair) {
          if (pair[0] === name)
            result[k++] = pair[1];
        });
        return result;
      },
  
      appendParameter: function(name, values) {
        if (!Array.isArray(values))
          values = [values];
        var parsed = parseSearch(this.search);
        for (var i = 0; i < values.length; i++) {
          parsed.push([name, values[i]]);
        }
        this.search = serializeParsed(parsed);
      },
  
      clearParameter: function(name) {
        this.search = serializeParsed(
          parseSearch(this.search).filter(function(pair) {
            return pair[0] !== name;
          }));
      },
    };
  
    var oldURL = window.URL || window.webkitURL || window.mozURL;
  
    URL.createObjectURL = function(blob) {
      return oldURL.createObjectURL.apply(oldURL, arguments);
    };
  
    URL.revokeObjectURL = function(url) {
      return oldURL.revokeObjectURL.apply(oldURL, arguments);
    };
  
    // Methods should not be enumerable.
    Object.defineProperty(URL.prototype, 'toString', {
      enumerable: false
    });
    Object.defineProperty(URL.prototype, 'getParameter', {
      enumerable: false
    });
    Object.defineProperty(URL.prototype, 'getParameterAll', {
      enumerable: false
    });
    Object.defineProperty(URL.prototype, 'appendParameter', {
      enumerable: false
    });
    Object.defineProperty(URL.prototype, 'clearParameter', {
      enumerable: false
    });
    Object.defineProperty(URL, 'createObjectURL', {
      enumerable: false
    });
    Object.defineProperty(URL, 'revokeObjectURL', {
      enumerable: false
    });
  
    return URL;
  })();

Teardown JS

Test cases

Test #1

Title *

Async

Code *

var matches = urlParseRE.exec(url);
DCE_sink.push({
  hostname: matches[11],
  search: matches[16]
});

Test #2

Title *

Async

Code *

parser.href = url;
DCE_sink.push({
  hostname: parser.hostname,
  search: parser.search
});

Test #3

Title *

Async

Code *

var url = new URL(url);
DCE_sink.push({
  hostname: url.hostname,
  search: url.search
});

Test #4

Title *

Async

Code *

var matches = urlParseRE2.exec(url);
DCE_sink.push({
  hostname: matches[5],
  search: matches[8]
});
console.log(DCE_sink);

Test #5

Title *

Async

Code *

var result = URI.parse(url);
DCE_sink.push({
  hostname: result.hostname,
  search: result.query
});

Test case details

Preparation Code

Test cases

Test #1

Test #2

Test #3

Test #4

Test #5