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/**
 * Top level namespace for Jasmine, a lightweight JavaScript BDD/spec/testing framework.
 *
 * @namespace
 */
var jasmine = {};

/**
 * @private
 */
jasmine.unimplementedMethod_ = function() {
  throw new Error("unimplemented method");
};

/**
 * Use <code>jasmine.undefined</code> instead of <code>undefined</code>, since <code>undefined</code> is just
 * a plain old variable and may be redefined by somebody else.
 *
 * @private
 */
jasmine.undefined = jasmine.___undefined___;

/**
 * Default interval in milliseconds for event loop yields (e.g. to allow network activity or to refresh the screen with the HTML-based runner). Small values here may result in slow test running. Zero means no updates until all tests have completed.
 *
 */
jasmine.DEFAULT_UPDATE_INTERVAL = 250;

/**
 * Default timeout interval in milliseconds for waitsFor() blocks.
 */
jasmine.DEFAULT_TIMEOUT_INTERVAL = 5000;

jasmine.getGlobal = function() {
  function getGlobal() {
    return this;
  }

  return getGlobal();
};

/**
 * Allows for bound functions to be compared.  Internal use only.
 *
 * @ignore
 * @private
 * @param base {Object} bound 'this' for the function
 * @param name {Function} function to find
 */
jasmine.bindOriginal_ = function(base, name) {
  var original = base[name];
  if (original.apply) {
    return function() {
      return original.apply(base, arguments);
    };
  } else {
    // IE support
    return jasmine.getGlobal()[name];
  }
};

jasmine.setTimeout = jasmine.bindOriginal_(jasmine.getGlobal(), 'setTimeout');
jasmine.clearTimeout = jasmine.bindOriginal_(jasmine.getGlobal(), 'clearTimeout');
jasmine.setInterval = jasmine.bindOriginal_(jasmine.getGlobal(), 'setInterval');
jasmine.clearInterval = jasmine.bindOriginal_(jasmine.getGlobal(), 'clearInterval');

jasmine.MessageResult = function(values) {
  this.type = 'log';
  this.values = values;
  this.trace = new Error(); // todo: test better
};

jasmine.MessageResult.prototype.toString = function() {
  var text = "";
  for(var i = 0; i < this.values.length; i++) {
    if (i > 0) text += " ";
    if (jasmine.isString_(this.values[i])) {
      text += this.values[i];
    } else {
      text += jasmine.pp(this.values[i]);
    }
  }
  return text;
};

jasmine.ExpectationResult = function(params) {
  this.type = 'expect';
  this.matcherName = params.matcherName;
  this.passed_ = params.passed;
  this.expected = params.expected;
  this.actual = params.actual;

  this.message = this.passed_ ? 'Passed.' : params.message;
  this.trace = this.passed_ ? '' : new Error(this.message);
};

jasmine.ExpectationResult.prototype.toString = function () {
  return this.message;
};

jasmine.ExpectationResult.prototype.passed = function () {
  return this.passed_;
};

/**
 * Getter for the Jasmine environment. Ensures one gets created
 */
jasmine.getEnv = function() {
  return jasmine.currentEnv_ = jasmine.currentEnv_ || new jasmine.Env();
};

/**
 * @ignore
 * @private
 * @param value
 * @returns {Boolean}
 */
jasmine.isArray_ = function(value) {
  return jasmine.isA_("Array", value);  
};

/**
 * @ignore
 * @private
 * @param value
 * @returns {Boolean}
 */
jasmine.isString_ = function(value) {
  return jasmine.isA_("String", value);
};

/**
 * @ignore
 * @private
 * @param value
 * @returns {Boolean}
 */
jasmine.isNumber_ = function(value) {
  return jasmine.isA_("Number", value);
};

/**
 * @ignore
 * @private
 * @param {String} typeName
 * @param value
 * @returns {Boolean}
 */
jasmine.isA_ = function(typeName, value) {
  return Object.prototype.toString.apply(value) === '[object ' + typeName + ']';
};

/**
 * Pretty printer for expecations.  Takes any object and turns it into a human-readable string.
 *
 * @param value {Object} an object to be outputted
 * @returns {String}
 */
jasmine.pp = function(value) {
  var stringPrettyPrinter = new jasmine.StringPrettyPrinter();
  stringPrettyPrinter.format(value);
  return stringPrettyPrinter.string;
};

/**
 * Returns true if the object is a DOM Node.
 *
 * @param {Object} obj object to check
 * @returns {Boolean}
 */
jasmine.isDomNode = function(obj) {
  return obj['nodeType'] > 0;
};

/**
 * Returns a matchable 'generic' object of the class type.  For use in expecations of type when values don't matter.
 *
 * @example
 * // don't care about which function is passed in, as long as it's a function
 * expect(mySpy).toHaveBeenCalledWith(jasmine.any(Function));
 *
 * @param {Class} clazz
 * @returns matchable object of the type clazz
 */
jasmine.any = function(clazz) {
  return new jasmine.Matchers.Any(clazz);
};

/**
 * Jasmine Spies are test doubles that can act as stubs, spies, fakes or when used in an expecation, mocks.
 *
 * Spies should be created in test setup, before expectations.  They can then be checked, using the standard Jasmine
 * expectation syntax. Spies can be checked if they were called or not and what the calling params were.
 *
 * A Spy has the following fields: wasCalled, callCount, mostRecentCall, and argsForCall (see docs).
 *
 * Spies are torn down at the end of every spec.
 *
 * Note: Do <b>not</b> call new jasmine.Spy() directly - a spy must be created using spyOn, jasmine.createSpy or jasmine.createSpyObj.
 *
 * @example
 * // a stub
 * var myStub = jasmine.createSpy('myStub');  // can be used anywhere
 *
 * // spy example
 * var foo = {
 *   not: function(bool) { return !bool; }
 * }
 *
 * // actual foo.not will not be called, execution stops
 * spyOn(foo, 'not');

 // foo.not spied upon, execution will continue to implementation
 * spyOn(foo, 'not').andCallThrough();
 *
 * // fake example
 * var foo = {
 *   not: function(bool) { return !bool; }
 * }
 *
 * // foo.not(val) will return val
 * spyOn(foo, 'not').andCallFake(function(value) {return value;});
 *
 * // mock example
 * foo.not(7 == 7);
 * expect(foo.not).toHaveBeenCalled();
 * expect(foo.not).toHaveBeenCalledWith(true);
 *
 * @constructor
 * @see spyOn, jasmine.createSpy, jasmine.createSpyObj
 * @param {String} name
 */
jasmine.Spy = function(name) {
  /**
   * The name of the spy, if provided.
   */
  this.identity = name || 'unknown';
  /**
   *  Is this Object a spy?
   */
  this.isSpy = true;
  /**
   * The actual function this spy stubs.
   */
  this.plan = function() {
  };
  /**
   * Tracking of the most recent call to the spy.
   * @example
   * var mySpy = jasmine.createSpy('foo');
   * mySpy(1, 2);
   * mySpy.mostRecentCall.args = [1, 2];
   */
  this.mostRecentCall = {};

  /**
   * Holds arguments for each call to the spy, indexed by call count
   * @example
   * var mySpy = jasmine.createSpy('foo');
   * mySpy(1, 2);
   * mySpy(7, 8);
   * mySpy.mostRecentCall.args = [7, 8];
   * mySpy.argsForCall[0] = [1, 2];
   * mySpy.argsForCall[1] = [7, 8];
   */
  this.argsForCall = [];
  this.calls = [];
};

/**
 * Tells a spy to call through to the actual implemenatation.
 *
 * @example
 * var foo = {
 *   bar: function() { // do some stuff }
 * }
 *
 * // defining a spy on an existing property: foo.bar
 * spyOn(foo, 'bar').andCallThrough();
 */
jasmine.Spy.prototype.andCallThrough = function() {
  this.plan = this.originalValue;
  return this;
};

/**
 * For setting the return value of a spy.
 *
 * @example
 * // defining a spy from scratch: foo() returns 'baz'
 * var foo = jasmine.createSpy('spy on foo').andReturn('baz');
 *
 * // defining a spy on an existing property: foo.bar() returns 'baz'
 * spyOn(foo, 'bar').andReturn('baz');
 *
 * @param {Object} value
 */
jasmine.Spy.prototype.andReturn = function(value) {
  this.plan = function() {
    return value;
  };
  return this;
};

/**
 * For throwing an exception when a spy is called.
 *
 * @example
 * // defining a spy from scratch: foo() throws an exception w/ message 'ouch'
 * var foo = jasmine.createSpy('spy on foo').andThrow('baz');
 *
 * // defining a spy on an existing property: foo.bar() throws an exception w/ message 'ouch'
 * spyOn(foo, 'bar').andThrow('baz');
 *
 * @param {String} exceptionMsg
 */
jasmine.Spy.prototype.andThrow = function(exceptionMsg) {
  this.plan = function() {
    throw exceptionMsg;
  };
  return this;
};

/**
 * Calls an alternate implementation when a spy is called.
 *
 * @example
 * var baz = function() {
 *   // do some stuff, return something
 * }
 * // defining a spy from scratch: foo() calls the function baz
 * var foo = jasmine.createSpy('spy on foo').andCall(baz);
 *
 * // defining a spy on an existing property: foo.bar() calls an anonymnous function
 * spyOn(foo, 'bar').andCall(function() { return 'baz';} );
 *
 * @param {Function} fakeFunc
 */
jasmine.Spy.prototype.andCallFake = function(fakeFunc) {
  this.plan = fakeFunc;
  return this;
};

/**
 * Resets all of a spy's the tracking variables so that it can be used again.
 *
 * @example
 * spyOn(foo, 'bar');
 *
 * foo.bar();
 *
 * expect(foo.bar.callCount).toEqual(1);
 *
 * foo.bar.reset();
 *
 * expect(foo.bar.callCount).toEqual(0);
 */
jasmine.Spy.prototype.reset = function() {
  this.wasCalled = false;
  this.callCount = 0;
  this.argsForCall = [];
  this.calls = [];
  this.mostRecentCall = {};
};

jasmine.createSpy = function(name) {

  var spyObj = function() {
    spyObj.wasCalled = true;
    spyObj.callCount++;
    var args = jasmine.util.argsToArray(arguments);
    spyObj.mostRecentCall.object = this;
    spyObj.mostRecentCall.args = args;
    spyObj.argsForCall.push(args);
    spyObj.calls.push({object: this, args: args});
    return spyObj.plan.apply(this, arguments);
  };

  var spy = new jasmine.Spy(name);

  for (var prop in spy) {
    spyObj[prop] = spy[prop];
  }

  spyObj.reset();

  return spyObj;
};

/**
 * Determines whether an object is a spy.
 *
 * @param {jasmine.Spy|Object} putativeSpy
 * @returns {Boolean}
 */
jasmine.isSpy = function(putativeSpy) {
  return putativeSpy && putativeSpy.isSpy;
};

/**
 * Creates a more complicated spy: an Object that has every property a function that is a spy.  Used for stubbing something
 * large in one call.
 *
 * @param {String} baseName name of spy class
 * @param {Array} methodNames array of names of methods to make spies
 */
jasmine.createSpyObj = function(baseName, methodNames) {
  if (!jasmine.isArray_(methodNames) || methodNames.length == 0) {
    throw new Error('createSpyObj requires a non-empty array of method names to create spies for');
  }
  var obj = {};
  for (var i = 0; i < methodNames.length; i++) {
    obj[methodNames[i]] = jasmine.createSpy(baseName + '.' + methodNames[i]);
  }
  return obj;
};

/**
 * All parameters are pretty-printed and concatenated together, then written to the current spec's output.
 *
 * Be careful not to leave calls to <code>jasmine.log</code> in production code.
 */
jasmine.log = function() {
  var spec = jasmine.getEnv().currentSpec;
  spec.log.apply(spec, arguments);
};

/**
 * Function that installs a spy on an existing object's method name.  Used within a Spec to create a spy.
 *
 * @example
 * // spy example
 * var foo = {
 *   not: function(bool) { return !bool; }
 * }
 * spyOn(foo, 'not'); // actual foo.not will not be called, execution stops
 *
 * @see jasmine.createSpy
 * @param obj
 * @param methodName
 * @returns a Jasmine spy that can be chained with all spy methods
 */
var spyOn = function(obj, methodName) {
  return jasmine.getEnv().currentSpec.spyOn(obj, methodName);
};

/**
 * Creates a Jasmine spec that will be added to the current suite.
 *
 * // TODO: pending tests
 *
 * @example
 * it('should be true', function() {
 *   expect(true).toEqual(true);
 * });
 *
 * @param {String} desc description of this specification
 * @param {Function} func defines the preconditions and expectations of the spec
 */
var it = function(desc, func) {
  return jasmine.getEnv().it(desc, func);
};

/**
 * Creates a <em>disabled</em> Jasmine spec.
 *
 * A convenience method that allows existing specs to be disabled temporarily during development.
 *
 * @param {String} desc description of this specification
 * @param {Function} func defines the preconditions and expectations of the spec
 */
var xit = function(desc, func) {
  return jasmine.getEnv().xit(desc, func);
};

/**
 * Starts a chain for a Jasmine expectation.
 *
 * It is passed an Object that is the actual value and should chain to one of the many
 * jasmine.Matchers functions.
 *
 * @param {Object} actual Actual value to test against and expected value
 */
var expect = function(actual) {
  return jasmine.getEnv().currentSpec.expect(actual);
};

/**
 * Defines part of a jasmine spec.  Used in cominbination with waits or waitsFor in asynchrnous specs.
 *
 * @param {Function} func Function that defines part of a jasmine spec.
 */
var runs = function(func) {
  jasmine.getEnv().currentSpec.runs(func);
};

/**
 * Waits a fixed time period before moving to the next block.
 *
 * @deprecated Use waitsFor() instead
 * @param {Number} timeout milliseconds to wait
 */
var waits = function(timeout) {
  jasmine.getEnv().currentSpec.waits(timeout);
};

/**
 * Waits for the latchFunction to return true before proceeding to the next block.
 *
 * @param {Function} latchFunction
 * @param {String} optional_timeoutMessage
 * @param {Number} optional_timeout
 */
var waitsFor = function(latchFunction, optional_timeoutMessage, optional_timeout) {
  jasmine.getEnv().currentSpec.waitsFor.apply(jasmine.getEnv().currentSpec, arguments);
};

/**
 * A function that is called before each spec in a suite.
 *
 * Used for spec setup, including validating assumptions.
 *
 * @param {Function} beforeEachFunction
 */
var beforeEach = function(beforeEachFunction) {
  jasmine.getEnv().beforeEach(beforeEachFunction);
};

/**
 * A function that is called after each spec in a suite.
 *
 * Used for restoring any state that is hijacked during spec execution.
 *
 * @param {Function} afterEachFunction
 */
var afterEach = function(afterEachFunction) {
  jasmine.getEnv().afterEach(afterEachFunction);
};

/**
 * Defines a suite of specifications.
 *
 * Stores the description and all defined specs in the Jasmine environment as one suite of specs. Variables declared
 * are accessible by calls to beforeEach, it, and afterEach. Describe blocks can be nested, allowing for specialization
 * of setup in some tests.
 *
 * @example
 * // TODO: a simple suite
 *
 * // TODO: a simple suite with a nested describe block
 *
 * @param {String} description A string, usually the class under test.
 * @param {Function} specDefinitions function that defines several specs.
 */
var describe = function(description, specDefinitions) {
  return jasmine.getEnv().describe(description, specDefinitions);
};

/**
 * Disables a suite of specifications.  Used to disable some suites in a file, or files, temporarily during development.
 *
 * @param {String} description A string, usually the class under test.
 * @param {Function} specDefinitions function that defines several specs.
 */
var xdescribe = function(description, specDefinitions) {
  return jasmine.getEnv().xdescribe(description, specDefinitions);
};


// Provide the XMLHttpRequest class for IE 5.x-6.x:
jasmine.XmlHttpRequest = (typeof XMLHttpRequest == "undefined") ? function() {
  try {
    return new ActiveXObject("Msxml2.XMLHTTP.6.0");
  } catch(e) {
  }
  try {
    return new ActiveXObject("Msxml2.XMLHTTP.3.0");
  } catch(e) {
  }
  try {
    return new ActiveXObject("Msxml2.XMLHTTP");
  } catch(e) {
  }
  try {
    return new ActiveXObject("Microsoft.XMLHTTP");
  } catch(e) {
  }
  throw new Error("This browser does not support XMLHttpRequest.");
} : XMLHttpRequest;