;(function(){

/**

* Require the given path.
*
* @param {String} path
* @return {Object} exports
* @api public
*/

function require(path, parent, orig) {

var resolved = require.resolve(path);

// lookup failed
if (null == resolved) {
  orig = orig || path;
  parent = parent || 'root';
  var err = new Error('Failed to require "' + orig + '" from "' + parent + '"');
  err.path = orig;
  err.parent = parent;
  err.require = true;
  throw err;
}

var module = require.modules[resolved];

// perform real require()
// by invoking the module's
// registered function
if (!module._resolving && !module.exports) {
  var mod = {};
  mod.exports = {};
  mod.client = mod.component = true;
  module._resolving = true;
  module.call(this, mod.exports, require.relative(resolved), mod);
  delete module._resolving;
  module.exports = mod.exports;
}

return module.exports;

}

/**

* Registered modules.
*/

require.modules = {};

/**

* Registered aliases.
*/

require.aliases = {};

/**

* Resolve `path`.
*
* Lookup:
*
*   - PATH/index.js
*   - PATH.js
*   - PATH
*
* @param {String} path
* @return {String} path or null
* @api private
*/

require.resolve = function(path) {

if (path.charAt(0) === '/') path = path.slice(1);

var paths = [
  path,
  path + '.js',
  path + '.json',
  path + '/index.js',
  path + '/index.json'
];

for (var i = 0; i < paths.length; i++) {
  var path = paths[i];
  if (require.modules.hasOwnProperty(path)) return path;
  if (require.aliases.hasOwnProperty(path)) return require.aliases[path];
}

};

/**

* Normalize `path` relative to the current path.
*
* @param {String} curr
* @param {String} path
* @return {String}
* @api private
*/

require.normalize = function(curr, path) {

var segs = [];

if ('.' != path.charAt(0)) return path;

curr = curr.split('/');
path = path.split('/');

for (var i = 0; i < path.length; ++i) {
  if ('..' == path[i]) {
    curr.pop();
  } else if ('.' != path[i] && '' != path[i]) {
    segs.push(path[i]);
  }
}

return curr.concat(segs).join('/');

};

/**

* Register module at `path` with callback `definition`.
*
* @param {String} path
* @param {Function} definition
* @api private
*/

require.register = function(path, definition) {

require.modules[path] = definition;

};

/**

* Alias a module definition.
*
* @param {String} from
* @param {String} to
* @api private
*/

require.alias = function(from, to) {

if (!require.modules.hasOwnProperty(from)) {
  throw new Error('Failed to alias "' + from + '", it does not exist');
}
require.aliases[to] = from;

};

/**

* Return a require function relative to the `parent` path.
*
* @param {String} parent
* @return {Function}
* @api private
*/

require.relative = function(parent) {

var p = require.normalize(parent, '..');

/**
 * lastIndexOf helper.
 */

function lastIndexOf(arr, obj) {
  var i = arr.length;
  while (i--) {
    if (arr[i] === obj) return i;
  }
  return -1;
}

/**
 * The relative require() itself.
 */

function localRequire(path) {
  var resolved = localRequire.resolve(path);
  return require(resolved, parent, path);
}

/**
 * Resolve relative to the parent.
 */

localRequire.resolve = function(path) {
  var c = path.charAt(0);
  if ('/' == c) return path.slice(1);
  if ('.' == c) return require.normalize(p, path);

  // resolve deps by returning
  // the dep in the nearest "deps"
  // directory
  var segs = parent.split('/');
  var i = lastIndexOf(segs, 'deps') + 1;
  if (!i) i = 0;
  path = segs.slice(0, i + 1).join('/') + '/deps/' + path;
  return path;
};

/**
 * Check if module is defined at `path`.
 */

localRequire.exists = function(path) {
  return require.modules.hasOwnProperty(localRequire.resolve(path));
};

return localRequire;

}; require.register(“chaijs-assertion-error/index.js”, function(exports, require, module){ /*!

* assertion-error
* Copyright(c) 2013 Jake Luer <jake@qualiancy.com>
* MIT Licensed
*/

/*!

* Return a function that will copy properties from
* one object to another excluding any originally
* listed. Returned function will create a new `{}`.
*
* @param {String} excluded properties ...
* @return {Function}
*/

function exclude () {

var excludes = [].slice.call(arguments);

function excludeProps (res, obj) {
  Object.keys(obj).forEach(function (key) {
    if (!~excludes.indexOf(key)) res[key] = obj[key];
  });
}

return function extendExclude () {
  var args = [].slice.call(arguments)
    , i = 0
    , res = {};

  for (; i < args.length; i++) {
    excludeProps(res, args[i]);
  }

  return res;
};

};

/*!

* Primary Exports
*/

module.exports = AssertionError;

/**

* ### AssertionError
*
* An extension of the JavaScript `Error` constructor for
* assertion and validation scenarios.
*
* @param {String} message
* @param {Object} properties to include (optional)
* @param {callee} start stack function (optional)
*/

function AssertionError (message, _props, ssf) {

var extend = exclude('name', 'message', 'stack', 'constructor', 'toJSON')
  , props = extend(_props || {});

// default values
this.message = message || 'Unspecified AssertionError';
this.showDiff = false;

// copy from properties
for (var key in props) {
  this[key] = props[key];
}

// capture stack trace
ssf = ssf || arguments.callee;
if (ssf && Error.captureStackTrace) {
  Error.captureStackTrace(this, ssf);
}

}

/*!

* Inherit from Error.prototype
*/

AssertionError.prototype = Object.create(Error.prototype);

/*!

* Statically set name
*/

AssertionError.prototype.name = 'AssertionError';

/*!

* Ensure correct constructor
*/

AssertionError.prototype.constructor = AssertionError;

/**

* Allow errors to be converted to JSON for static transfer.
*
* @param {Boolean} include stack (default: `true`)
* @return {Object} object that can be `JSON.stringify`
*/

AssertionError.prototype.toJSON = function (stack) {

var extend = exclude('constructor', 'toJSON', 'stack')
  , props = extend({ name: this.name }, this);

// include stack if exists and not turned off
if (false !== stack && this.stack) {
  props.stack = this.stack;
}

return props;

};

}); require.register(“chaijs-type-detect/lib/type.js”, function(exports, require, module){ /*!

* type-detect
* Copyright(c) 2013 jake luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Primary Exports
*/

var exports = module.exports = getType;

/*!

* Detectable javascript natives
*/

var natives = {

  '[object Array]': 'array'
, '[object RegExp]': 'regexp'
, '[object Function]': 'function'
, '[object Arguments]': 'arguments'
, '[object Date]': 'date'

};

/**

* ### typeOf (obj)
*
* Use several different techniques to determine
* the type of object being tested.
*
*
* @param {Mixed} object
* @return {String} object type
* @api public
*/

function getType (obj) {

var str = Object.prototype.toString.call(obj);
if (natives[str]) return natives[str];
if (obj === null) return 'null';
if (obj === undefined) return 'undefined';
if (obj === Object(obj)) return 'object';
return typeof obj;

}

exports.Library = Library;

/**

* ### Library
*
* Create a repository for custom type detection.
*
* ```js
* var lib = new type.Library;
* ```
*
*/

function Library () {

this.tests = {};

}

/**

* #### .of (obj)
*
* Expose replacement `typeof` detection to the library.
*
* ```js
* if ('string' === lib.of('hello world')) {
*   // ...
* }
* ```
*
* @param {Mixed} object to test
* @return {String} type
*/

Library.prototype.of = getType;

/**

* #### .define (type, test)
*
* Add a test to for the `.test()` assertion.
*
* Can be defined as a regular expression:
*
* ```js
* lib.define('int', /^[0-9]+$/);
* ```
*
* ... or as a function:
*
* ```js
* lib.define('bln', function (obj) {
*   if ('boolean' === lib.of(obj)) return true;
*   var blns = [ 'yes', 'no', 'true', 'false', 1, 0 ];
*   if ('string' === lib.of(obj)) obj = obj.toLowerCase();
*   return !! ~blns.indexOf(obj);
* });
* ```
*
* @param {String} type
* @param {RegExp|Function} test
* @api public
*/

Library.prototype.define = function (type, test) {

if (arguments.length === 1) return this.tests[type];
this.tests[type] = test;
return this;

};

/**

* #### .test (obj, test)
*
* Assert that an object is of type. Will first
* check natives, and if that does not pass it will
* use the user defined custom tests.
*
* ```js
* assert(lib.test('1', 'int'));
* assert(lib.test('yes', 'bln'));
* ```
*
* @param {Mixed} object
* @param {String} type
* @return {Boolean} result
* @api public
*/

Library.prototype.test = function (obj, type) {

if (type === getType(obj)) return true;
var test = this.tests[type];

if (test && 'regexp' === getType(test)) {
  return test.test(obj);
} else if (test && 'function' === getType(test)) {
  return test(obj);
} else {
  throw new ReferenceError('Type test "' + type + '" not defined or invalid.');
}

};

}); require.register(“chaijs-deep-eql/lib/eql.js”, function(exports, require, module){ /*!

* deep-eql
* Copyright(c) 2013 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Module dependencies
*/

var type = require('type-detect');

/*!

* Buffer.isBuffer browser shim
*/

var Buffer; try { Buffer = require('buffer').Buffer; } catch(ex) {

Buffer = {};
Buffer.isBuffer = function() { return false; }

}

/*!

* Primary Export
*/

module.exports = deepEqual;

/**

* Assert super-strict (egal) equality between
* two objects of any type.
*
* @param {Mixed} a
* @param {Mixed} b
* @param {Array} memoised (optional)
* @return {Boolean} equal match
*/

function deepEqual(a, b, m) {

if (sameValue(a, b)) {
  return true;
} else if ('date' === type(a)) {
  return dateEqual(a, b);
} else if ('regexp' === type(a)) {
  return regexpEqual(a, b);
} else if (Buffer.isBuffer(a)) {
  return bufferEqual(a, b);
} else if ('arguments' === type(a)) {
  return argumentsEqual(a, b, m);
} else if (!typeEqual(a, b)) {
  return false;
} else if (('object' !== type(a) && 'object' !== type(b))
&& ('array' !== type(a) && 'array' !== type(b))) {
  return sameValue(a, b);
} else {
  return objectEqual(a, b, m);
}

}

/*!

* Strict (egal) equality test. Ensures that NaN always
* equals NaN and `-0` does not equal `+0`.
*
* @param {Mixed} a
* @param {Mixed} b
* @return {Boolean} equal match
*/

function sameValue(a, b) {

if (a === b) return a !== 0 || 1 / a === 1 / b;
return a !== a && b !== b;

}

/*!

* Compare the types of two given objects and
* return if they are equal. Note that an Array
* has a type of `array` (not `object`) and arguments
* have a type of `arguments` (not `array`/`object`).
*
* @param {Mixed} a
* @param {Mixed} b
* @return {Boolean} result
*/

function typeEqual(a, b) {

return type(a) === type(b);

}

/*!

* Compare two Date objects by asserting that
* the time values are equal using `saveValue`.
*
* @param {Date} a
* @param {Date} b
* @return {Boolean} result
*/

function dateEqual(a, b) {

if ('date' !== type(b)) return false;
return sameValue(a.getTime(), b.getTime());

}

/*!

* Compare two regular expressions by converting them
* to string and checking for `sameValue`.
*
* @param {RegExp} a
* @param {RegExp} b
* @return {Boolean} result
*/

function regexpEqual(a, b) {

if ('regexp' !== type(b)) return false;
return sameValue(a.toString(), b.toString());

}

/*!

* Assert deep equality of two `arguments` objects.
* Unfortunately, these must be sliced to arrays
* prior to test to ensure no bad behavior.
*
* @param {Arguments} a
* @param {Arguments} b
* @param {Array} memoize (optional)
* @return {Boolean} result
*/

function argumentsEqual(a, b, m) {

if ('arguments' !== type(b)) return false;
a = [].slice.call(a);
b = [].slice.call(b);
return deepEqual(a, b, m);

}

/*!

* Get enumerable properties of a given object.
*
* @param {Object} a
* @return {Array} property names
*/

function enumerable(a) {

var res = [];
for (var key in a) res.push(key);
return res;

}

/*!

* Simple equality for flat iterable objects
* such as Arrays or Node.js buffers.
*
* @param {Iterable} a
* @param {Iterable} b
* @return {Boolean} result
*/

function iterableEqual(a, b) {

if (a.length !==  b.length) return false;

var i = 0;
var match = true;

for (; i < a.length; i++) {
  if (a[i] !== b[i]) {
    match = false;
    break;
  }
}

return match;

}

/*!

* Extension to `iterableEqual` specifically
* for Node.js Buffers.
*
* @param {Buffer} a
* @param {Mixed} b
* @return {Boolean} result
*/

function bufferEqual(a, b) {

if (!Buffer.isBuffer(b)) return false;
return iterableEqual(a, b);

}

/*!

* Block for `objectEqual` ensuring non-existing
* values don't get in.
*
* @param {Mixed} object
* @return {Boolean} result
*/

function isValue(a) {

return a !== null && a !== undefined;

}

/*!

* Recursively check the equality of two objects.
* Once basic sameness has been established it will
* defer to `deepEqual` for each enumerable key
* in the object.
*
* @param {Mixed} a
* @param {Mixed} b
* @return {Boolean} result
*/

function objectEqual(a, b, m) {

if (!isValue(a) || !isValue(b)) {
  return false;
}

if (a.prototype !== b.prototype) {
  return false;
}

var i;
if (m) {
  for (i = 0; i < m.length; i++) {
    if ((m[i][0] === a && m[i][1] === b)
    ||  (m[i][0] === b && m[i][1] === a)) {
      return true;
    }
  }
} else {
  m = [];
}

try {
  var ka = enumerable(a);
  var kb = enumerable(b);
} catch (ex) {
  return false;
}

ka.sort();
kb.sort();

if (!iterableEqual(ka, kb)) {
  return false;
}

m.push([ a, b ]);

var key;
for (i = ka.length - 1; i >= 0; i--) {
  key = ka[i];
  if (!deepEqual(a[key], b[key], m)) {
    return false;
  }
}

return true;

}

}); require.register(“chai/index.js”, function(exports, require, module){ module.exports = require('./lib/chai');

}); require.register(“chai/lib/chai.js”, function(exports, require, module){ /*!

* chai
* Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

var used = []

, exports = module.exports = {};

/*!

* Chai version
*/

exports.version = '1.9.1';

/*!

* Assertion Error
*/

exports.AssertionError = require('assertion-error');

/*!

* Utils for plugins (not exported)
*/

var util = require('./chai/utils');

/**

* # .use(function)
*
* Provides a way to extend the internals of Chai
*
* @param {Function}
* @returns {this} for chaining
* @api public
*/

exports.use = function (fn) {

if (!~used.indexOf(fn)) {
  fn(this, util);
  used.push(fn);
}

return this;

};

/*!

* Configuration
*/

var config = require('./chai/config'); exports.config = config;

/*!

* Primary `Assertion` prototype
*/

var assertion = require('./chai/assertion'); exports.use(assertion);

/*!

* Core Assertions
*/

var core = require('./chai/core/assertions'); exports.use(core);

/*!

* Expect interface
*/

var expect = require('./chai/interface/expect'); exports.use(expect);

/*!

* Should interface
*/

var should = require('./chai/interface/should'); exports.use(should);

/*!

* Assert interface
*/

var assert = require('./chai/interface/assert'); exports.use(assert);

}); require.register(“chai/lib/chai/assertion.js”, function(exports, require, module){ /*!

* chai
* http://chaijs.com
* Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

var config = require('./config');

module.exports = function (_chai, util) {

/*!
 * Module dependencies.
 */

var AssertionError = _chai.AssertionError
  , flag = util.flag;

/*!
 * Module export.
 */

_chai.Assertion = Assertion;

/*!
 * Assertion Constructor
 *
 * Creates object for chaining.
 *
 * @api private
 */

function Assertion (obj, msg, stack) {
  flag(this, 'ssfi', stack || arguments.callee);
  flag(this, 'object', obj);
  flag(this, 'message', msg);
}

Object.defineProperty(Assertion, 'includeStack', {
  get: function() {
    console.warn('Assertion.includeStack is deprecated, use chai.config.includeStack instead.');
    return config.includeStack;
  },
  set: function(value) {
    console.warn('Assertion.includeStack is deprecated, use chai.config.includeStack instead.');
    config.includeStack = value;
  }
});

Object.defineProperty(Assertion, 'showDiff', {
  get: function() {
    console.warn('Assertion.showDiff is deprecated, use chai.config.showDiff instead.');
    return config.showDiff;
  },
  set: function(value) {
    console.warn('Assertion.showDiff is deprecated, use chai.config.showDiff instead.');
    config.showDiff = value;
  }
});

Assertion.addProperty = function (name, fn) {
  util.addProperty(this.prototype, name, fn);
};

Assertion.addMethod = function (name, fn) {
  util.addMethod(this.prototype, name, fn);
};

Assertion.addChainableMethod = function (name, fn, chainingBehavior) {
  util.addChainableMethod(this.prototype, name, fn, chainingBehavior);
};

Assertion.overwriteProperty = function (name, fn) {
  util.overwriteProperty(this.prototype, name, fn);
};

Assertion.overwriteMethod = function (name, fn) {
  util.overwriteMethod(this.prototype, name, fn);
};

Assertion.overwriteChainableMethod = function (name, fn, chainingBehavior) {
  util.overwriteChainableMethod(this.prototype, name, fn, chainingBehavior);
};

/*!
 * ### .assert(expression, message, negateMessage, expected, actual)
 *
 * Executes an expression and check expectations. Throws AssertionError for reporting if test doesn't pass.
 *
 * @name assert
 * @param {Philosophical} expression to be tested
 * @param {String} message to display if fails
 * @param {String} negatedMessage to display if negated expression fails
 * @param {Mixed} expected value (remember to check for negation)
 * @param {Mixed} actual (optional) will default to `this.obj`
 * @api private
 */

Assertion.prototype.assert = function (expr, msg, negateMsg, expected, _actual, showDiff) {
  var ok = util.test(this, arguments);
  if (true !== showDiff) showDiff = false;
  if (true !== config.showDiff) showDiff = false;

  if (!ok) {
    var msg = util.getMessage(this, arguments)
      , actual = util.getActual(this, arguments);
    throw new AssertionError(msg, {
        actual: actual
      , expected: expected
      , showDiff: showDiff
    }, (config.includeStack) ? this.assert : flag(this, 'ssfi'));
  }
};

/*!
 * ### ._obj
 *
 * Quick reference to stored `actual` value for plugin developers.
 *
 * @api private
 */

Object.defineProperty(Assertion.prototype, '_obj',
  { get: function () {
      return flag(this, 'object');
    }
  , set: function (val) {
      flag(this, 'object', val);
    }
});

};

}); require.register(“chai/lib/chai/config.js”, function(exports, require, module){ module.exports = {

/**
 * ### config.includeStack
 *
 * User configurable property, influences whether stack trace
 * is included in Assertion error message. Default of false
 * suppresses stack trace in the error message.
 *
 *     chai.config.includeStack = true;  // enable stack on error
 *
 * @param {Boolean}
 * @api public
 */

 includeStack: false,

/**
 * ### config.showDiff
 *
 * User configurable property, influences whether or not
 * the `showDiff` flag should be included in the thrown
 * AssertionErrors. `false` will always be `false`; `true`
 * will be true when the assertion has requested a diff
 * be shown.
 *
 * @param {Boolean}
 * @api public
 */

showDiff: true,

/**
 * ### config.truncateThreshold
 *
 * User configurable property, sets length threshold for actual and
 * expected values in assertion errors. If this threshold is exceeded,
 * the value is truncated.
 *
 * Set it to zero if you want to disable truncating altogether.
 *
 *     chai.config.truncateThreshold = 0;  // disable truncating
 *
 * @param {Number}
 * @api public
 */

truncateThreshold: 40

};

}); require.register(“chai/lib/chai/core/assertions.js”, function(exports, require, module){ /*!

* chai
* http://chaijs.com
* Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

module.exports = function (chai, _) {

var Assertion = chai.Assertion
  , toString = Object.prototype.toString
  , flag = _.flag;

/**
 * ### Language Chains
 *
 * The following are provided as chainable getters to
 * improve the readability of your assertions. They
 * do not provide testing capabilities unless they
 * have been overwritten by a plugin.
 *
 * **Chains**
 *
 * - to
 * - be
 * - been
 * - is
 * - that
 * - and
 * - has
 * - have
 * - with
 * - at
 * - of
 * - same
 *
 * @name language chains
 * @api public
 */

[ 'to', 'be', 'been'
, 'is', 'and', 'has', 'have'
, 'with', 'that', 'at'
, 'of', 'same' ].forEach(function (chain) {
  Assertion.addProperty(chain, function () {
    return this;
  });
});

/**
 * ### .not
 *
 * Negates any of assertions following in the chain.
 *
 *     expect(foo).to.not.equal('bar');
 *     expect(goodFn).to.not.throw(Error);
 *     expect({ foo: 'baz' }).to.have.property('foo')
 *       .and.not.equal('bar');
 *
 * @name not
 * @api public
 */

Assertion.addProperty('not', function () {
  flag(this, 'negate', true);
});

/**
 * ### .deep
 *
 * Sets the `deep` flag, later used by the `equal` and
 * `property` assertions.
 *
 *     expect(foo).to.deep.equal({ bar: 'baz' });
 *     expect({ foo: { bar: { baz: 'quux' } } })
 *       .to.have.deep.property('foo.bar.baz', 'quux');
 *
 * @name deep
 * @api public
 */

Assertion.addProperty('deep', function () {
  flag(this, 'deep', true);
});

/**
 * ### .a(type)
 *
 * The `a` and `an` assertions are aliases that can be
 * used either as language chains or to assert a value's
 * type.
 *
 *     // typeof
 *     expect('test').to.be.a('string');
 *     expect({ foo: 'bar' }).to.be.an('object');
 *     expect(null).to.be.a('null');
 *     expect(undefined).to.be.an('undefined');
 *
 *     // language chain
 *     expect(foo).to.be.an.instanceof(Foo);
 *
 * @name a
 * @alias an
 * @param {String} type
 * @param {String} message _optional_
 * @api public
 */

function an (type, msg) {
  if (msg) flag(this, 'message', msg);
  type = type.toLowerCase();
  var obj = flag(this, 'object')
    , article = ~[ 'a', 'e', 'i', 'o', 'u' ].indexOf(type.charAt(0)) ? 'an ' : 'a ';

  this.assert(
      type === _.type(obj)
    , 'expected #{this} to be ' + article + type
    , 'expected #{this} not to be ' + article + type
  );
}

Assertion.addChainableMethod('an', an);
Assertion.addChainableMethod('a', an);

/**
 * ### .include(value)
 *
 * The `include` and `contain` assertions can be used as either property
 * based language chains or as methods to assert the inclusion of an object
 * in an array or a substring in a string. When used as language chains,
 * they toggle the `contain` flag for the `keys` assertion.
 *
 *     expect([1,2,3]).to.include(2);
 *     expect('foobar').to.contain('foo');
 *     expect({ foo: 'bar', hello: 'universe' }).to.include.keys('foo');
 *
 * @name include
 * @alias contain
 * @param {Object|String|Number} obj
 * @param {String} message _optional_
 * @api public
 */

function includeChainingBehavior () {
  flag(this, 'contains', true);
}

function include (val, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  var expected = false;
  if (_.type(obj) === 'array' && _.type(val) === 'object') {
    for (var i in obj) {
      if (_.eql(obj[i], val)) {
        expected = true;
        break;
      }
    }
  } else if (_.type(val) === 'object') {
    if (!flag(this, 'negate')) {
      for (var k in val) new Assertion(obj).property(k, val[k]);
      return;
    }
    var subset = {}
    for (var k in val) subset[k] = obj[k]
    expected = _.eql(subset, val);
  } else {
    expected = obj && ~obj.indexOf(val)
  }
  this.assert(
      expected
    , 'expected #{this} to include ' + _.inspect(val)
    , 'expected #{this} to not include ' + _.inspect(val));
}

Assertion.addChainableMethod('include', include, includeChainingBehavior);
Assertion.addChainableMethod('contain', include, includeChainingBehavior);

/**
 * ### .ok
 *
 * Asserts that the target is truthy.
 *
 *     expect('everthing').to.be.ok;
 *     expect(1).to.be.ok;
 *     expect(false).to.not.be.ok;
 *     expect(undefined).to.not.be.ok;
 *     expect(null).to.not.be.ok;
 *
 * @name ok
 * @api public
 */

Assertion.addProperty('ok', function () {
  this.assert(
      flag(this, 'object')
    , 'expected #{this} to be truthy'
    , 'expected #{this} to be falsy');
});

/**
 * ### .true
 *
 * Asserts that the target is `true`.
 *
 *     expect(true).to.be.true;
 *     expect(1).to.not.be.true;
 *
 * @name true
 * @api public
 */

Assertion.addProperty('true', function () {
  this.assert(
      true === flag(this, 'object')
    , 'expected #{this} to be true'
    , 'expected #{this} to be false'
    , this.negate ? false : true
  );
});

/**
 * ### .false
 *
 * Asserts that the target is `false`.
 *
 *     expect(false).to.be.false;
 *     expect(0).to.not.be.false;
 *
 * @name false
 * @api public
 */

Assertion.addProperty('false', function () {
  this.assert(
      false === flag(this, 'object')
    , 'expected #{this} to be false'
    , 'expected #{this} to be true'
    , this.negate ? true : false
  );
});

/**
 * ### .null
 *
 * Asserts that the target is `null`.
 *
 *     expect(null).to.be.null;
 *     expect(undefined).not.to.be.null;
 *
 * @name null
 * @api public
 */

Assertion.addProperty('null', function () {
  this.assert(
      null === flag(this, 'object')
    , 'expected #{this} to be null'
    , 'expected #{this} not to be null'
  );
});

/**
 * ### .undefined
 *
 * Asserts that the target is `undefined`.
 *
 *     expect(undefined).to.be.undefined;
 *     expect(null).to.not.be.undefined;
 *
 * @name undefined
 * @api public
 */

Assertion.addProperty('undefined', function () {
  this.assert(
      undefined === flag(this, 'object')
    , 'expected #{this} to be undefined'
    , 'expected #{this} not to be undefined'
  );
});

/**
 * ### .exist
 *
 * Asserts that the target is neither `null` nor `undefined`.
 *
 *     var foo = 'hi'
 *       , bar = null
 *       , baz;
 *
 *     expect(foo).to.exist;
 *     expect(bar).to.not.exist;
 *     expect(baz).to.not.exist;
 *
 * @name exist
 * @api public
 */

Assertion.addProperty('exist', function () {
  this.assert(
      null != flag(this, 'object')
    , 'expected #{this} to exist'
    , 'expected #{this} to not exist'
  );
});

/**
 * ### .empty
 *
 * Asserts that the target's length is `0`. For arrays, it checks
 * the `length` property. For objects, it gets the count of
 * enumerable keys.
 *
 *     expect([]).to.be.empty;
 *     expect('').to.be.empty;
 *     expect({}).to.be.empty;
 *
 * @name empty
 * @api public
 */

Assertion.addProperty('empty', function () {
  var obj = flag(this, 'object')
    , expected = obj;

  if (Array.isArray(obj) || 'string' === typeof object) {
    expected = obj.length;
  } else if (typeof obj === 'object') {
    expected = Object.keys(obj).length;
  }

  this.assert(
      !expected
    , 'expected #{this} to be empty'
    , 'expected #{this} not to be empty'
  );
});

/**
 * ### .arguments
 *
 * Asserts that the target is an arguments object.
 *
 *     function test () {
 *       expect(arguments).to.be.arguments;
 *     }
 *
 * @name arguments
 * @alias Arguments
 * @api public
 */

function checkArguments () {
  var obj = flag(this, 'object')
    , type = Object.prototype.toString.call(obj);
  this.assert(
      '[object Arguments]' === type
    , 'expected #{this} to be arguments but got ' + type
    , 'expected #{this} to not be arguments'
  );
}

Assertion.addProperty('arguments', checkArguments);
Assertion.addProperty('Arguments', checkArguments);

/**
 * ### .equal(value)
 *
 * Asserts that the target is strictly equal (`===`) to `value`.
 * Alternately, if the `deep` flag is set, asserts that
 * the target is deeply equal to `value`.
 *
 *     expect('hello').to.equal('hello');
 *     expect(42).to.equal(42);
 *     expect(1).to.not.equal(true);
 *     expect({ foo: 'bar' }).to.not.equal({ foo: 'bar' });
 *     expect({ foo: 'bar' }).to.deep.equal({ foo: 'bar' });
 *
 * @name equal
 * @alias equals
 * @alias eq
 * @alias deep.equal
 * @param {Mixed} value
 * @param {String} message _optional_
 * @api public
 */

function assertEqual (val, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  if (flag(this, 'deep')) {
    return this.eql(val);
  } else {
    this.assert(
        val === obj
      , 'expected #{this} to equal #{exp}'
      , 'expected #{this} to not equal #{exp}'
      , val
      , this._obj
      , true
    );
  }
}

Assertion.addMethod('equal', assertEqual);
Assertion.addMethod('equals', assertEqual);
Assertion.addMethod('eq', assertEqual);

/**
 * ### .eql(value)
 *
 * Asserts that the target is deeply equal to `value`.
 *
 *     expect({ foo: 'bar' }).to.eql({ foo: 'bar' });
 *     expect([ 1, 2, 3 ]).to.eql([ 1, 2, 3 ]);
 *
 * @name eql
 * @alias eqls
 * @param {Mixed} value
 * @param {String} message _optional_
 * @api public
 */

function assertEql(obj, msg) {
  if (msg) flag(this, 'message', msg);
  this.assert(
      _.eql(obj, flag(this, 'object'))
    , 'expected #{this} to deeply equal #{exp}'
    , 'expected #{this} to not deeply equal #{exp}'
    , obj
    , this._obj
    , true
  );
}

Assertion.addMethod('eql', assertEql);
Assertion.addMethod('eqls', assertEql);

/**
 * ### .above(value)
 *
 * Asserts that the target is greater than `value`.
 *
 *     expect(10).to.be.above(5);
 *
 * Can also be used in conjunction with `length` to
 * assert a minimum length. The benefit being a
 * more informative error message than if the length
 * was supplied directly.
 *
 *     expect('foo').to.have.length.above(2);
 *     expect([ 1, 2, 3 ]).to.have.length.above(2);
 *
 * @name above
 * @alias gt
 * @alias greaterThan
 * @param {Number} value
 * @param {String} message _optional_
 * @api public
 */

function assertAbove (n, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  if (flag(this, 'doLength')) {
    new Assertion(obj, msg).to.have.property('length');
    var len = obj.length;
    this.assert(
        len > n
      , 'expected #{this} to have a length above #{exp} but got #{act}'
      , 'expected #{this} to not have a length above #{exp}'
      , n
      , len
    );
  } else {
    this.assert(
        obj > n
      , 'expected #{this} to be above ' + n
      , 'expected #{this} to be at most ' + n
    );
  }
}

Assertion.addMethod('above', assertAbove);
Assertion.addMethod('gt', assertAbove);
Assertion.addMethod('greaterThan', assertAbove);

/**
 * ### .least(value)
 *
 * Asserts that the target is greater than or equal to `value`.
 *
 *     expect(10).to.be.at.least(10);
 *
 * Can also be used in conjunction with `length` to
 * assert a minimum length. The benefit being a
 * more informative error message than if the length
 * was supplied directly.
 *
 *     expect('foo').to.have.length.of.at.least(2);
 *     expect([ 1, 2, 3 ]).to.have.length.of.at.least(3);
 *
 * @name least
 * @alias gte
 * @param {Number} value
 * @param {String} message _optional_
 * @api public
 */

function assertLeast (n, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  if (flag(this, 'doLength')) {
    new Assertion(obj, msg).to.have.property('length');
    var len = obj.length;
    this.assert(
        len >= n
      , 'expected #{this} to have a length at least #{exp} but got #{act}'
      , 'expected #{this} to have a length below #{exp}'
      , n
      , len
    );
  } else {
    this.assert(
        obj >= n
      , 'expected #{this} to be at least ' + n
      , 'expected #{this} to be below ' + n
    );
  }
}

Assertion.addMethod('least', assertLeast);
Assertion.addMethod('gte', assertLeast);

/**
 * ### .below(value)
 *
 * Asserts that the target is less than `value`.
 *
 *     expect(5).to.be.below(10);
 *
 * Can also be used in conjunction with `length` to
 * assert a maximum length. The benefit being a
 * more informative error message than if the length
 * was supplied directly.
 *
 *     expect('foo').to.have.length.below(4);
 *     expect([ 1, 2, 3 ]).to.have.length.below(4);
 *
 * @name below
 * @alias lt
 * @alias lessThan
 * @param {Number} value
 * @param {String} message _optional_
 * @api public
 */

function assertBelow (n, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  if (flag(this, 'doLength')) {
    new Assertion(obj, msg).to.have.property('length');
    var len = obj.length;
    this.assert(
        len < n
      , 'expected #{this} to have a length below #{exp} but got #{act}'
      , 'expected #{this} to not have a length below #{exp}'
      , n
      , len
    );
  } else {
    this.assert(
        obj < n
      , 'expected #{this} to be below ' + n
      , 'expected #{this} to be at least ' + n
    );
  }
}

Assertion.addMethod('below', assertBelow);
Assertion.addMethod('lt', assertBelow);
Assertion.addMethod('lessThan', assertBelow);

/**
 * ### .most(value)
 *
 * Asserts that the target is less than or equal to `value`.
 *
 *     expect(5).to.be.at.most(5);
 *
 * Can also be used in conjunction with `length` to
 * assert a maximum length. The benefit being a
 * more informative error message than if the length
 * was supplied directly.
 *
 *     expect('foo').to.have.length.of.at.most(4);
 *     expect([ 1, 2, 3 ]).to.have.length.of.at.most(3);
 *
 * @name most
 * @alias lte
 * @param {Number} value
 * @param {String} message _optional_
 * @api public
 */

function assertMost (n, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  if (flag(this, 'doLength')) {
    new Assertion(obj, msg).to.have.property('length');
    var len = obj.length;
    this.assert(
        len <= n
      , 'expected #{this} to have a length at most #{exp} but got #{act}'
      , 'expected #{this} to have a length above #{exp}'
      , n
      , len
    );
  } else {
    this.assert(
        obj <= n
      , 'expected #{this} to be at most ' + n
      , 'expected #{this} to be above ' + n
    );
  }
}

Assertion.addMethod('most', assertMost);
Assertion.addMethod('lte', assertMost);

/**
 * ### .within(start, finish)
 *
 * Asserts that the target is within a range.
 *
 *     expect(7).to.be.within(5,10);
 *
 * Can also be used in conjunction with `length` to
 * assert a length range. The benefit being a
 * more informative error message than if the length
 * was supplied directly.
 *
 *     expect('foo').to.have.length.within(2,4);
 *     expect([ 1, 2, 3 ]).to.have.length.within(2,4);
 *
 * @name within
 * @param {Number} start lowerbound inclusive
 * @param {Number} finish upperbound inclusive
 * @param {String} message _optional_
 * @api public
 */

Assertion.addMethod('within', function (start, finish, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object')
    , range = start + '..' + finish;
  if (flag(this, 'doLength')) {
    new Assertion(obj, msg).to.have.property('length');
    var len = obj.length;
    this.assert(
        len >= start && len <= finish
      , 'expected #{this} to have a length within ' + range
      , 'expected #{this} to not have a length within ' + range
    );
  } else {
    this.assert(
        obj >= start && obj <= finish
      , 'expected #{this} to be within ' + range
      , 'expected #{this} to not be within ' + range
    );
  }
});

/**
 * ### .instanceof(constructor)
 *
 * Asserts that the target is an instance of `constructor`.
 *
 *     var Tea = function (name) { this.name = name; }
 *       , Chai = new Tea('chai');
 *
 *     expect(Chai).to.be.an.instanceof(Tea);
 *     expect([ 1, 2, 3 ]).to.be.instanceof(Array);
 *
 * @name instanceof
 * @param {Constructor} constructor
 * @param {String} message _optional_
 * @alias instanceOf
 * @api public
 */

function assertInstanceOf (constructor, msg) {
  if (msg) flag(this, 'message', msg);
  var name = _.getName(constructor);
  this.assert(
      flag(this, 'object') instanceof constructor
    , 'expected #{this} to be an instance of ' + name
    , 'expected #{this} to not be an instance of ' + name
  );
};

Assertion.addMethod('instanceof', assertInstanceOf);
Assertion.addMethod('instanceOf', assertInstanceOf);

/**
 * ### .property(name, [value])
 *
 * Asserts that the target has a property `name`, optionally asserting that
 * the value of that property is strictly equal to  `value`.
 * If the `deep` flag is set, you can use dot- and bracket-notation for deep
 * references into objects and arrays.
 *
 *     // simple referencing
 *     var obj = { foo: 'bar' };
 *     expect(obj).to.have.property('foo');
 *     expect(obj).to.have.property('foo', 'bar');
 *
 *     // deep referencing
 *     var deepObj = {
 *         green: { tea: 'matcha' }
 *       , teas: [ 'chai', 'matcha', { tea: 'konacha' } ]
 *     };

 *     expect(deepObj).to.have.deep.property('green.tea', 'matcha');
 *     expect(deepObj).to.have.deep.property('teas[1]', 'matcha');
 *     expect(deepObj).to.have.deep.property('teas[2].tea', 'konacha');
 *
 * You can also use an array as the starting point of a `deep.property`
 * assertion, or traverse nested arrays.
 *
 *     var arr = [
 *         [ 'chai', 'matcha', 'konacha' ]
 *       , [ { tea: 'chai' }
 *         , { tea: 'matcha' }
 *         , { tea: 'konacha' } ]
 *     ];
 *
 *     expect(arr).to.have.deep.property('[0][1]', 'matcha');
 *     expect(arr).to.have.deep.property('[1][2].tea', 'konacha');
 *
 * Furthermore, `property` changes the subject of the assertion
 * to be the value of that property from the original object. This
 * permits for further chainable assertions on that property.
 *
 *     expect(obj).to.have.property('foo')
 *       .that.is.a('string');
 *     expect(deepObj).to.have.property('green')
 *       .that.is.an('object')
 *       .that.deep.equals({ tea: 'matcha' });
 *     expect(deepObj).to.have.property('teas')
 *       .that.is.an('array')
 *       .with.deep.property('[2]')
 *         .that.deep.equals({ tea: 'konacha' });
 *
 * @name property
 * @alias deep.property
 * @param {String} name
 * @param {Mixed} value (optional)
 * @param {String} message _optional_
 * @returns value of property for chaining
 * @api public
 */

Assertion.addMethod('property', function (name, val, msg) {
  if (msg) flag(this, 'message', msg);

  var descriptor = flag(this, 'deep') ? 'deep property ' : 'property '
    , negate = flag(this, 'negate')
    , obj = flag(this, 'object')
    , value = flag(this, 'deep')
      ? _.getPathValue(name, obj)
      : obj[name];

  if (negate && undefined !== val) {
    if (undefined === value) {
      msg = (msg != null) ? msg + ': ' : '';
      throw new Error(msg + _.inspect(obj) + ' has no ' + descriptor + _.inspect(name));
    }
  } else {
    this.assert(
        undefined !== value
      , 'expected #{this} to have a ' + descriptor + _.inspect(name)
      , 'expected #{this} to not have ' + descriptor + _.inspect(name));
  }

  if (undefined !== val) {
    this.assert(
        val === value
      , 'expected #{this} to have a ' + descriptor + _.inspect(name) + ' of #{exp}, but got #{act}'
      , 'expected #{this} to not have a ' + descriptor + _.inspect(name) + ' of #{act}'
      , val
      , value
    );
  }

  flag(this, 'object', value);
});

/**
 * ### .ownProperty(name)
 *
 * Asserts that the target has an own property `name`.
 *
 *     expect('test').to.have.ownProperty('length');
 *
 * @name ownProperty
 * @alias haveOwnProperty
 * @param {String} name
 * @param {String} message _optional_
 * @api public
 */

function assertOwnProperty (name, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  this.assert(
      obj.hasOwnProperty(name)
    , 'expected #{this} to have own property ' + _.inspect(name)
    , 'expected #{this} to not have own property ' + _.inspect(name)
  );
}

Assertion.addMethod('ownProperty', assertOwnProperty);
Assertion.addMethod('haveOwnProperty', assertOwnProperty);

/**
 * ### .length(value)
 *
 * Asserts that the target's `length` property has
 * the expected value.
 *
 *     expect([ 1, 2, 3]).to.have.length(3);
 *     expect('foobar').to.have.length(6);
 *
 * Can also be used as a chain precursor to a value
 * comparison for the length property.
 *
 *     expect('foo').to.have.length.above(2);
 *     expect([ 1, 2, 3 ]).to.have.length.above(2);
 *     expect('foo').to.have.length.below(4);
 *     expect([ 1, 2, 3 ]).to.have.length.below(4);
 *     expect('foo').to.have.length.within(2,4);
 *     expect([ 1, 2, 3 ]).to.have.length.within(2,4);
 *
 * @name length
 * @alias lengthOf
 * @param {Number} length
 * @param {String} message _optional_
 * @api public
 */

function assertLengthChain () {
  flag(this, 'doLength', true);
}

function assertLength (n, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  new Assertion(obj, msg).to.have.property('length');
  var len = obj.length;

  this.assert(
      len == n
    , 'expected #{this} to have a length of #{exp} but got #{act}'
    , 'expected #{this} to not have a length of #{act}'
    , n
    , len
  );
}

Assertion.addChainableMethod('length', assertLength, assertLengthChain);
Assertion.addMethod('lengthOf', assertLength, assertLengthChain);

/**
 * ### .match(regexp)
 *
 * Asserts that the target matches a regular expression.
 *
 *     expect('foobar').to.match(/^foo/);
 *
 * @name match
 * @param {RegExp} RegularExpression
 * @param {String} message _optional_
 * @api public
 */

Assertion.addMethod('match', function (re, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  this.assert(
      re.exec(obj)
    , 'expected #{this} to match ' + re
    , 'expected #{this} not to match ' + re
  );
});

/**
 * ### .string(string)
 *
 * Asserts that the string target contains another string.
 *
 *     expect('foobar').to.have.string('bar');
 *
 * @name string
 * @param {String} string
 * @param {String} message _optional_
 * @api public
 */

Assertion.addMethod('string', function (str, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  new Assertion(obj, msg).is.a('string');

  this.assert(
      ~obj.indexOf(str)
    , 'expected #{this} to contain ' + _.inspect(str)
    , 'expected #{this} to not contain ' + _.inspect(str)
  );
});

/**
 * ### .keys(key1, [key2], [...])
 *
 * Asserts that the target has exactly the given keys, or
 * asserts the inclusion of some keys when using the
 * `include` or `contain` modifiers.
 *
 *     expect({ foo: 1, bar: 2 }).to.have.keys(['foo', 'bar']);
 *     expect({ foo: 1, bar: 2, baz: 3 }).to.contain.keys('foo', 'bar');
 *
 * @name keys
 * @alias key
 * @param {String...|Array} keys
 * @api public
 */

function assertKeys (keys) {
  var obj = flag(this, 'object')
    , str
    , ok = true;

  keys = keys instanceof Array
    ? keys
    : Array.prototype.slice.call(arguments);

  if (!keys.length) throw new Error('keys required');

  var actual = Object.keys(obj)
    , len = keys.length;

  // Inclusion
  ok = keys.every(function(key){
    return ~actual.indexOf(key);
  });

  // Strict
  if (!flag(this, 'negate') && !flag(this, 'contains')) {
    ok = ok && keys.length == actual.length;
  }

  // Key string
  if (len > 1) {
    keys = keys.map(function(key){
      return _.inspect(key);
    });
    var last = keys.pop();
    str = keys.join(', ') + ', and ' + last;
  } else {
    str = _.inspect(keys[0]);
  }

  // Form
  str = (len > 1 ? 'keys ' : 'key ') + str;

  // Have / include
  str = (flag(this, 'contains') ? 'contain ' : 'have ') + str;

  // Assertion
  this.assert(
      ok
    , 'expected #{this} to ' + str
    , 'expected #{this} to not ' + str
  );
}

Assertion.addMethod('keys', assertKeys);
Assertion.addMethod('key', assertKeys);

/**
 * ### .throw(constructor)
 *
 * Asserts that the function target will throw a specific error, or specific type of error
 * (as determined using `instanceof`), optionally with a RegExp or string inclusion test
 * for the error's message.
 *
 *     var err = new ReferenceError('This is a bad function.');
 *     var fn = function () { throw err; }
 *     expect(fn).to.throw(ReferenceError);
 *     expect(fn).to.throw(Error);
 *     expect(fn).to.throw(/bad function/);
 *     expect(fn).to.not.throw('good function');
 *     expect(fn).to.throw(ReferenceError, /bad function/);
 *     expect(fn).to.throw(err);
 *     expect(fn).to.not.throw(new RangeError('Out of range.'));
 *
 * Please note that when a throw expectation is negated, it will check each
 * parameter independently, starting with error constructor type. The appropriate way
 * to check for the existence of a type of error but for a message that does not match
 * is to use `and`.
 *
 *     expect(fn).to.throw(ReferenceError)
 *        .and.not.throw(/good function/);
 *
 * @name throw
 * @alias throws
 * @alias Throw
 * @param {ErrorConstructor} constructor
 * @param {String|RegExp} expected error message
 * @param {String} message _optional_
 * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
 * @returns error for chaining (null if no error)
 * @api public
 */

function assertThrows (constructor, errMsg, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  new Assertion(obj, msg).is.a('function');

  var thrown = false
    , desiredError = null
    , name = null
    , thrownError = null;

  if (arguments.length === 0) {
    errMsg = null;
    constructor = null;
  } else if (constructor && (constructor instanceof RegExp || 'string' === typeof constructor)) {
    errMsg = constructor;
    constructor = null;
  } else if (constructor && constructor instanceof Error) {
    desiredError = constructor;
    constructor = null;
    errMsg = null;
  } else if (typeof constructor === 'function') {
    name = constructor.prototype.name || constructor.name;
    if (name === 'Error' && constructor !== Error) {
      name = (new constructor()).name;
    }
  } else {
    constructor = null;
  }

  try {
    obj();
  } catch (err) {
    // first, check desired error
    if (desiredError) {
      this.assert(
          err === desiredError
        , 'expected #{this} to throw #{exp} but #{act} was thrown'
        , 'expected #{this} to not throw #{exp}'
        , (desiredError instanceof Error ? desiredError.toString() : desiredError)
        , (err instanceof Error ? err.toString() : err)
      );

      flag(this, 'object', err);
      return this;
    }

    // next, check constructor
    if (constructor) {
      this.assert(
          err instanceof constructor
        , 'expected #{this} to throw #{exp} but #{act} was thrown'
        , 'expected #{this} to not throw #{exp} but #{act} was thrown'
        , name
        , (err instanceof Error ? err.toString() : err)
      );

      if (!errMsg) {
        flag(this, 'object', err);
        return this;
      }
    }

    // next, check message
    var message = 'object' === _.type(err) && "message" in err
      ? err.message
      : '' + err;

    if ((message != null) && errMsg && errMsg instanceof RegExp) {
      this.assert(
          errMsg.exec(message)
        , 'expected #{this} to throw error matching #{exp} but got #{act}'
        , 'expected #{this} to throw error not matching #{exp}'
        , errMsg
        , message
      );

      flag(this, 'object', err);
      return this;
    } else if ((message != null) && errMsg && 'string' === typeof errMsg) {
      this.assert(
          ~message.indexOf(errMsg)
        , 'expected #{this} to throw error including #{exp} but got #{act}'
        , 'expected #{this} to throw error not including #{act}'
        , errMsg
        , message
      );

      flag(this, 'object', err);
      return this;
    } else {
      thrown = true;
      thrownError = err;
    }
  }

  var actuallyGot = ''
    , expectedThrown = name !== null
      ? name
      : desiredError
        ? '#{exp}' //_.inspect(desiredError)
        : 'an error';

  if (thrown) {
    actuallyGot = ' but #{act} was thrown'
  }

  this.assert(
      thrown === true
    , 'expected #{this} to throw ' + expectedThrown + actuallyGot
    , 'expected #{this} to not throw ' + expectedThrown + actuallyGot
    , (desiredError instanceof Error ? desiredError.toString() : desiredError)
    , (thrownError instanceof Error ? thrownError.toString() : thrownError)
  );

  flag(this, 'object', thrownError);
};

Assertion.addMethod('throw', assertThrows);
Assertion.addMethod('throws', assertThrows);
Assertion.addMethod('Throw', assertThrows);

/**
 * ### .respondTo(method)
 *
 * Asserts that the object or class target will respond to a method.
 *
 *     Klass.prototype.bar = function(){};
 *     expect(Klass).to.respondTo('bar');
 *     expect(obj).to.respondTo('bar');
 *
 * To check if a constructor will respond to a static function,
 * set the `itself` flag.
 *
 *     Klass.baz = function(){};
 *     expect(Klass).itself.to.respondTo('baz');
 *
 * @name respondTo
 * @param {String} method
 * @param {String} message _optional_
 * @api public
 */

Assertion.addMethod('respondTo', function (method, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object')
    , itself = flag(this, 'itself')
    , context = ('function' === _.type(obj) && !itself)
      ? obj.prototype[method]
      : obj[method];

  this.assert(
      'function' === typeof context
    , 'expected #{this} to respond to ' + _.inspect(method)
    , 'expected #{this} to not respond to ' + _.inspect(method)
  );
});

/**
 * ### .itself
 *
 * Sets the `itself` flag, later used by the `respondTo` assertion.
 *
 *     function Foo() {}
 *     Foo.bar = function() {}
 *     Foo.prototype.baz = function() {}
 *
 *     expect(Foo).itself.to.respondTo('bar');
 *     expect(Foo).itself.not.to.respondTo('baz');
 *
 * @name itself
 * @api public
 */

Assertion.addProperty('itself', function () {
  flag(this, 'itself', true);
});

/**
 * ### .satisfy(method)
 *
 * Asserts that the target passes a given truth test.
 *
 *     expect(1).to.satisfy(function(num) { return num > 0; });
 *
 * @name satisfy
 * @param {Function} matcher
 * @param {String} message _optional_
 * @api public
 */

Assertion.addMethod('satisfy', function (matcher, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  this.assert(
      matcher(obj)
    , 'expected #{this} to satisfy ' + _.objDisplay(matcher)
    , 'expected #{this} to not satisfy' + _.objDisplay(matcher)
    , this.negate ? false : true
    , matcher(obj)
  );
});

/**
 * ### .closeTo(expected, delta)
 *
 * Asserts that the target is equal `expected`, to within a +/- `delta` range.
 *
 *     expect(1.5).to.be.closeTo(1, 0.5);
 *
 * @name closeTo
 * @param {Number} expected
 * @param {Number} delta
 * @param {String} message _optional_
 * @api public
 */

Assertion.addMethod('closeTo', function (expected, delta, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');
  this.assert(
      Math.abs(obj - expected) <= delta
    , 'expected #{this} to be close to ' + expected + ' +/- ' + delta
    , 'expected #{this} not to be close to ' + expected + ' +/- ' + delta
  );
});

function isSubsetOf(subset, superset, cmp) {
  return subset.every(function(elem) {
    if (!cmp) return superset.indexOf(elem) !== -1;

    return superset.some(function(elem2) {
      return cmp(elem, elem2);
    });
  })
}

/**
 * ### .members(set)
 *
 * Asserts that the target is a superset of `set`,
 * or that the target and `set` have the same strictly-equal (===) members.
 * Alternately, if the `deep` flag is set, set members are compared for deep
 * equality.
 *
 *     expect([1, 2, 3]).to.include.members([3, 2]);
 *     expect([1, 2, 3]).to.not.include.members([3, 2, 8]);
 *
 *     expect([4, 2]).to.have.members([2, 4]);
 *     expect([5, 2]).to.not.have.members([5, 2, 1]);
 *
 *     expect([{ id: 1 }]).to.deep.include.members([{ id: 1 }]);
 *
 * @name members
 * @param {Array} set
 * @param {String} message _optional_
 * @api public
 */

Assertion.addMethod('members', function (subset, msg) {
  if (msg) flag(this, 'message', msg);
  var obj = flag(this, 'object');

  new Assertion(obj).to.be.an('array');
  new Assertion(subset).to.be.an('array');

  var cmp = flag(this, 'deep') ? _.eql : undefined;

  if (flag(this, 'contains')) {
    return this.assert(
        isSubsetOf(subset, obj, cmp)
      , 'expected #{this} to be a superset of #{act}'
      , 'expected #{this} to not be a superset of #{act}'
      , obj
      , subset
    );
  }

  this.assert(
      isSubsetOf(obj, subset, cmp) && isSubsetOf(subset, obj, cmp)
      , 'expected #{this} to have the same members as #{act}'
      , 'expected #{this} to not have the same members as #{act}'
      , obj
      , subset
  );
});

};

}); require.register(“chai/lib/chai/interface/assert.js”, function(exports, require, module){ /*!

* chai
* Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

module.exports = function (chai, util) {

/*!
 * Chai dependencies.
 */

var Assertion = chai.Assertion
  , flag = util.flag;

/*!
 * Module export.
 */

/**
 * ### assert(expression, message)
 *
 * Write your own test expressions.
 *
 *     assert('foo' !== 'bar', 'foo is not bar');
 *     assert(Array.isArray([]), 'empty arrays are arrays');
 *
 * @param {Mixed} expression to test for truthiness
 * @param {String} message to display on error
 * @name assert
 * @api public
 */

var assert = chai.assert = function (express, errmsg) {
  var test = new Assertion(null, null, chai.assert);
  test.assert(
      express
    , errmsg
    , '[ negation message unavailable ]'
  );
};

/**
 * ### .fail(actual, expected, [message], [operator])
 *
 * Throw a failure. Node.js `assert` module-compatible.
 *
 * @name fail
 * @param {Mixed} actual
 * @param {Mixed} expected
 * @param {String} message
 * @param {String} operator
 * @api public
 */

assert.fail = function (actual, expected, message, operator) {
  message = message || 'assert.fail()';
  throw new chai.AssertionError(message, {
      actual: actual
    , expected: expected
    , operator: operator
  }, assert.fail);
};

/**
 * ### .ok(object, [message])
 *
 * Asserts that `object` is truthy.
 *
 *     assert.ok('everything', 'everything is ok');
 *     assert.ok(false, 'this will fail');
 *
 * @name ok
 * @param {Mixed} object to test
 * @param {String} message
 * @api public
 */

assert.ok = function (val, msg) {
  new Assertion(val, msg).is.ok;
};

/**
 * ### .notOk(object, [message])
 *
 * Asserts that `object` is falsy.
 *
 *     assert.notOk('everything', 'this will fail');
 *     assert.notOk(false, 'this will pass');
 *
 * @name notOk
 * @param {Mixed} object to test
 * @param {String} message
 * @api public
 */

assert.notOk = function (val, msg) {
  new Assertion(val, msg).is.not.ok;
};

/**
 * ### .equal(actual, expected, [message])
 *
 * Asserts non-strict equality (`==`) of `actual` and `expected`.
 *
 *     assert.equal(3, '3', '== coerces values to strings');
 *
 * @name equal
 * @param {Mixed} actual
 * @param {Mixed} expected
 * @param {String} message
 * @api public
 */

assert.equal = function (act, exp, msg) {
  var test = new Assertion(act, msg, assert.equal);

  test.assert(
      exp == flag(test, 'object')
    , 'expected #{this} to equal #{exp}'
    , 'expected #{this} to not equal #{act}'
    , exp
    , act
  );
};

/**
 * ### .notEqual(actual, expected, [message])
 *
 * Asserts non-strict inequality (`!=`) of `actual` and `expected`.
 *
 *     assert.notEqual(3, 4, 'these numbers are not equal');
 *
 * @name notEqual
 * @param {Mixed} actual
 * @param {Mixed} expected
 * @param {String} message
 * @api public
 */

assert.notEqual = function (act, exp, msg) {
  var test = new Assertion(act, msg, assert.notEqual);

  test.assert(
      exp != flag(test, 'object')
    , 'expected #{this} to not equal #{exp}'
    , 'expected #{this} to equal #{act}'
    , exp
    , act
  );
};

/**
 * ### .strictEqual(actual, expected, [message])
 *
 * Asserts strict equality (`===`) of `actual` and `expected`.
 *
 *     assert.strictEqual(true, true, 'these booleans are strictly equal');
 *
 * @name strictEqual
 * @param {Mixed} actual
 * @param {Mixed} expected
 * @param {String} message
 * @api public
 */

assert.strictEqual = function (act, exp, msg) {
  new Assertion(act, msg).to.equal(exp);
};

/**
 * ### .notStrictEqual(actual, expected, [message])
 *
 * Asserts strict inequality (`!==`) of `actual` and `expected`.
 *
 *     assert.notStrictEqual(3, '3', 'no coercion for strict equality');
 *
 * @name notStrictEqual
 * @param {Mixed} actual
 * @param {Mixed} expected
 * @param {String} message
 * @api public
 */

assert.notStrictEqual = function (act, exp, msg) {
  new Assertion(act, msg).to.not.equal(exp);
};

/**
 * ### .deepEqual(actual, expected, [message])
 *
 * Asserts that `actual` is deeply equal to `expected`.
 *
 *     assert.deepEqual({ tea: 'green' }, { tea: 'green' });
 *
 * @name deepEqual
 * @param {Mixed} actual
 * @param {Mixed} expected
 * @param {String} message
 * @api public
 */

assert.deepEqual = function (act, exp, msg) {
  new Assertion(act, msg).to.eql(exp);
};

/**
 * ### .notDeepEqual(actual, expected, [message])
 *
 * Assert that `actual` is not deeply equal to `expected`.
 *
 *     assert.notDeepEqual({ tea: 'green' }, { tea: 'jasmine' });
 *
 * @name notDeepEqual
 * @param {Mixed} actual
 * @param {Mixed} expected
 * @param {String} message
 * @api public
 */

assert.notDeepEqual = function (act, exp, msg) {
  new Assertion(act, msg).to.not.eql(exp);
};

/**
 * ### .isTrue(value, [message])
 *
 * Asserts that `value` is true.
 *
 *     var teaServed = true;
 *     assert.isTrue(teaServed, 'the tea has been served');
 *
 * @name isTrue
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isTrue = function (val, msg) {
  new Assertion(val, msg).is['true'];
};

/**
 * ### .isFalse(value, [message])
 *
 * Asserts that `value` is false.
 *
 *     var teaServed = false;
 *     assert.isFalse(teaServed, 'no tea yet? hmm...');
 *
 * @name isFalse
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isFalse = function (val, msg) {
  new Assertion(val, msg).is['false'];
};

/**
 * ### .isNull(value, [message])
 *
 * Asserts that `value` is null.
 *
 *     assert.isNull(err, 'there was no error');
 *
 * @name isNull
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNull = function (val, msg) {
  new Assertion(val, msg).to.equal(null);
};

/**
 * ### .isNotNull(value, [message])
 *
 * Asserts that `value` is not null.
 *
 *     var tea = 'tasty chai';
 *     assert.isNotNull(tea, 'great, time for tea!');
 *
 * @name isNotNull
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNotNull = function (val, msg) {
  new Assertion(val, msg).to.not.equal(null);
};

/**
 * ### .isUndefined(value, [message])
 *
 * Asserts that `value` is `undefined`.
 *
 *     var tea;
 *     assert.isUndefined(tea, 'no tea defined');
 *
 * @name isUndefined
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isUndefined = function (val, msg) {
  new Assertion(val, msg).to.equal(undefined);
};

/**
 * ### .isDefined(value, [message])
 *
 * Asserts that `value` is not `undefined`.
 *
 *     var tea = 'cup of chai';
 *     assert.isDefined(tea, 'tea has been defined');
 *
 * @name isDefined
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isDefined = function (val, msg) {
  new Assertion(val, msg).to.not.equal(undefined);
};

/**
 * ### .isFunction(value, [message])
 *
 * Asserts that `value` is a function.
 *
 *     function serveTea() { return 'cup of tea'; };
 *     assert.isFunction(serveTea, 'great, we can have tea now');
 *
 * @name isFunction
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isFunction = function (val, msg) {
  new Assertion(val, msg).to.be.a('function');
};

/**
 * ### .isNotFunction(value, [message])
 *
 * Asserts that `value` is _not_ a function.
 *
 *     var serveTea = [ 'heat', 'pour', 'sip' ];
 *     assert.isNotFunction(serveTea, 'great, we have listed the steps');
 *
 * @name isNotFunction
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNotFunction = function (val, msg) {
  new Assertion(val, msg).to.not.be.a('function');
};

/**
 * ### .isObject(value, [message])
 *
 * Asserts that `value` is an object (as revealed by
 * `Object.prototype.toString`).
 *
 *     var selection = { name: 'Chai', serve: 'with spices' };
 *     assert.isObject(selection, 'tea selection is an object');
 *
 * @name isObject
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isObject = function (val, msg) {
  new Assertion(val, msg).to.be.a('object');
};

/**
 * ### .isNotObject(value, [message])
 *
 * Asserts that `value` is _not_ an object.
 *
 *     var selection = 'chai'
 *     assert.isNotObject(selection, 'tea selection is not an object');
 *     assert.isNotObject(null, 'null is not an object');
 *
 * @name isNotObject
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNotObject = function (val, msg) {
  new Assertion(val, msg).to.not.be.a('object');
};

/**
 * ### .isArray(value, [message])
 *
 * Asserts that `value` is an array.
 *
 *     var menu = [ 'green', 'chai', 'oolong' ];
 *     assert.isArray(menu, 'what kind of tea do we want?');
 *
 * @name isArray
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isArray = function (val, msg) {
  new Assertion(val, msg).to.be.an('array');
};

/**
 * ### .isNotArray(value, [message])
 *
 * Asserts that `value` is _not_ an array.
 *
 *     var menu = 'green|chai|oolong';
 *     assert.isNotArray(menu, 'what kind of tea do we want?');
 *
 * @name isNotArray
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNotArray = function (val, msg) {
  new Assertion(val, msg).to.not.be.an('array');
};

/**
 * ### .isString(value, [message])
 *
 * Asserts that `value` is a string.
 *
 *     var teaOrder = 'chai';
 *     assert.isString(teaOrder, 'order placed');
 *
 * @name isString
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isString = function (val, msg) {
  new Assertion(val, msg).to.be.a('string');
};

/**
 * ### .isNotString(value, [message])
 *
 * Asserts that `value` is _not_ a string.
 *
 *     var teaOrder = 4;
 *     assert.isNotString(teaOrder, 'order placed');
 *
 * @name isNotString
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNotString = function (val, msg) {
  new Assertion(val, msg).to.not.be.a('string');
};

/**
 * ### .isNumber(value, [message])
 *
 * Asserts that `value` is a number.
 *
 *     var cups = 2;
 *     assert.isNumber(cups, 'how many cups');
 *
 * @name isNumber
 * @param {Number} value
 * @param {String} message
 * @api public
 */

assert.isNumber = function (val, msg) {
  new Assertion(val, msg).to.be.a('number');
};

/**
 * ### .isNotNumber(value, [message])
 *
 * Asserts that `value` is _not_ a number.
 *
 *     var cups = '2 cups please';
 *     assert.isNotNumber(cups, 'how many cups');
 *
 * @name isNotNumber
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNotNumber = function (val, msg) {
  new Assertion(val, msg).to.not.be.a('number');
};

/**
 * ### .isBoolean(value, [message])
 *
 * Asserts that `value` is a boolean.
 *
 *     var teaReady = true
 *       , teaServed = false;
 *
 *     assert.isBoolean(teaReady, 'is the tea ready');
 *     assert.isBoolean(teaServed, 'has tea been served');
 *
 * @name isBoolean
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isBoolean = function (val, msg) {
  new Assertion(val, msg).to.be.a('boolean');
};

/**
 * ### .isNotBoolean(value, [message])
 *
 * Asserts that `value` is _not_ a boolean.
 *
 *     var teaReady = 'yep'
 *       , teaServed = 'nope';
 *
 *     assert.isNotBoolean(teaReady, 'is the tea ready');
 *     assert.isNotBoolean(teaServed, 'has tea been served');
 *
 * @name isNotBoolean
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.isNotBoolean = function (val, msg) {
  new Assertion(val, msg).to.not.be.a('boolean');
};

/**
 * ### .typeOf(value, name, [message])
 *
 * Asserts that `value`'s type is `name`, as determined by
 * `Object.prototype.toString`.
 *
 *     assert.typeOf({ tea: 'chai' }, 'object', 'we have an object');
 *     assert.typeOf(['chai', 'jasmine'], 'array', 'we have an array');
 *     assert.typeOf('tea', 'string', 'we have a string');
 *     assert.typeOf(/tea/, 'regexp', 'we have a regular expression');
 *     assert.typeOf(null, 'null', 'we have a null');
 *     assert.typeOf(undefined, 'undefined', 'we have an undefined');
 *
 * @name typeOf
 * @param {Mixed} value
 * @param {String} name
 * @param {String} message
 * @api public
 */

assert.typeOf = function (val, type, msg) {
  new Assertion(val, msg).to.be.a(type);
};

/**
 * ### .notTypeOf(value, name, [message])
 *
 * Asserts that `value`'s type is _not_ `name`, as determined by
 * `Object.prototype.toString`.
 *
 *     assert.notTypeOf('tea', 'number', 'strings are not numbers');
 *
 * @name notTypeOf
 * @param {Mixed} value
 * @param {String} typeof name
 * @param {String} message
 * @api public
 */

assert.notTypeOf = function (val, type, msg) {
  new Assertion(val, msg).to.not.be.a(type);
};

/**
 * ### .instanceOf(object, constructor, [message])
 *
 * Asserts that `value` is an instance of `constructor`.
 *
 *     var Tea = function (name) { this.name = name; }
 *       , chai = new Tea('chai');
 *
 *     assert.instanceOf(chai, Tea, 'chai is an instance of tea');
 *
 * @name instanceOf
 * @param {Object} object
 * @param {Constructor} constructor
 * @param {String} message
 * @api public
 */

assert.instanceOf = function (val, type, msg) {
  new Assertion(val, msg).to.be.instanceOf(type);
};

/**
 * ### .notInstanceOf(object, constructor, [message])
 *
 * Asserts `value` is not an instance of `constructor`.
 *
 *     var Tea = function (name) { this.name = name; }
 *       , chai = new String('chai');
 *
 *     assert.notInstanceOf(chai, Tea, 'chai is not an instance of tea');
 *
 * @name notInstanceOf
 * @param {Object} object
 * @param {Constructor} constructor
 * @param {String} message
 * @api public
 */

assert.notInstanceOf = function (val, type, msg) {
  new Assertion(val, msg).to.not.be.instanceOf(type);
};

/**
 * ### .include(haystack, needle, [message])
 *
 * Asserts that `haystack` includes `needle`. Works
 * for strings and arrays.
 *
 *     assert.include('foobar', 'bar', 'foobar contains string "bar"');
 *     assert.include([ 1, 2, 3 ], 3, 'array contains value');
 *
 * @name include
 * @param {Array|String} haystack
 * @param {Mixed} needle
 * @param {String} message
 * @api public
 */

assert.include = function (exp, inc, msg) {
  new Assertion(exp, msg, assert.include).include(inc);
};

/**
 * ### .notInclude(haystack, needle, [message])
 *
 * Asserts that `haystack` does not include `needle`. Works
 * for strings and arrays.
 *i
 *     assert.notInclude('foobar', 'baz', 'string not include substring');
 *     assert.notInclude([ 1, 2, 3 ], 4, 'array not include contain value');
 *
 * @name notInclude
 * @param {Array|String} haystack
 * @param {Mixed} needle
 * @param {String} message
 * @api public
 */

assert.notInclude = function (exp, inc, msg) {
  new Assertion(exp, msg, assert.notInclude).not.include(inc);
};

/**
 * ### .match(value, regexp, [message])
 *
 * Asserts that `value` matches the regular expression `regexp`.
 *
 *     assert.match('foobar', /^foo/, 'regexp matches');
 *
 * @name match
 * @param {Mixed} value
 * @param {RegExp} regexp
 * @param {String} message
 * @api public
 */

assert.match = function (exp, re, msg) {
  new Assertion(exp, msg).to.match(re);
};

/**
 * ### .notMatch(value, regexp, [message])
 *
 * Asserts that `value` does not match the regular expression `regexp`.
 *
 *     assert.notMatch('foobar', /^foo/, 'regexp does not match');
 *
 * @name notMatch
 * @param {Mixed} value
 * @param {RegExp} regexp
 * @param {String} message
 * @api public
 */

assert.notMatch = function (exp, re, msg) {
  new Assertion(exp, msg).to.not.match(re);
};

/**
 * ### .property(object, property, [message])
 *
 * Asserts that `object` has a property named by `property`.
 *
 *     assert.property({ tea: { green: 'matcha' }}, 'tea');
 *
 * @name property
 * @param {Object} object
 * @param {String} property
 * @param {String} message
 * @api public
 */

assert.property = function (obj, prop, msg) {
  new Assertion(obj, msg).to.have.property(prop);
};

/**
 * ### .notProperty(object, property, [message])
 *
 * Asserts that `object` does _not_ have a property named by `property`.
 *
 *     assert.notProperty({ tea: { green: 'matcha' }}, 'coffee');
 *
 * @name notProperty
 * @param {Object} object
 * @param {String} property
 * @param {String} message
 * @api public
 */

assert.notProperty = function (obj, prop, msg) {
  new Assertion(obj, msg).to.not.have.property(prop);
};

/**
 * ### .deepProperty(object, property, [message])
 *
 * Asserts that `object` has a property named by `property`, which can be a
 * string using dot- and bracket-notation for deep reference.
 *
 *     assert.deepProperty({ tea: { green: 'matcha' }}, 'tea.green');
 *
 * @name deepProperty
 * @param {Object} object
 * @param {String} property
 * @param {String} message
 * @api public
 */

assert.deepProperty = function (obj, prop, msg) {
  new Assertion(obj, msg).to.have.deep.property(prop);
};

/**
 * ### .notDeepProperty(object, property, [message])
 *
 * Asserts that `object` does _not_ have a property named by `property`, which
 * can be a string using dot- and bracket-notation for deep reference.
 *
 *     assert.notDeepProperty({ tea: { green: 'matcha' }}, 'tea.oolong');
 *
 * @name notDeepProperty
 * @param {Object} object
 * @param {String} property
 * @param {String} message
 * @api public
 */

assert.notDeepProperty = function (obj, prop, msg) {
  new Assertion(obj, msg).to.not.have.deep.property(prop);
};

/**
 * ### .propertyVal(object, property, value, [message])
 *
 * Asserts that `object` has a property named by `property` with value given
 * by `value`.
 *
 *     assert.propertyVal({ tea: 'is good' }, 'tea', 'is good');
 *
 * @name propertyVal
 * @param {Object} object
 * @param {String} property
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.propertyVal = function (obj, prop, val, msg) {
  new Assertion(obj, msg).to.have.property(prop, val);
};

/**
 * ### .propertyNotVal(object, property, value, [message])
 *
 * Asserts that `object` has a property named by `property`, but with a value
 * different from that given by `value`.
 *
 *     assert.propertyNotVal({ tea: 'is good' }, 'tea', 'is bad');
 *
 * @name propertyNotVal
 * @param {Object} object
 * @param {String} property
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.propertyNotVal = function (obj, prop, val, msg) {
  new Assertion(obj, msg).to.not.have.property(prop, val);
};

/**
 * ### .deepPropertyVal(object, property, value, [message])
 *
 * Asserts that `object` has a property named by `property` with value given
 * by `value`. `property` can use dot- and bracket-notation for deep
 * reference.
 *
 *     assert.deepPropertyVal({ tea: { green: 'matcha' }}, 'tea.green', 'matcha');
 *
 * @name deepPropertyVal
 * @param {Object} object
 * @param {String} property
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.deepPropertyVal = function (obj, prop, val, msg) {
  new Assertion(obj, msg).to.have.deep.property(prop, val);
};

/**
 * ### .deepPropertyNotVal(object, property, value, [message])
 *
 * Asserts that `object` has a property named by `property`, but with a value
 * different from that given by `value`. `property` can use dot- and
 * bracket-notation for deep reference.
 *
 *     assert.deepPropertyNotVal({ tea: { green: 'matcha' }}, 'tea.green', 'konacha');
 *
 * @name deepPropertyNotVal
 * @param {Object} object
 * @param {String} property
 * @param {Mixed} value
 * @param {String} message
 * @api public
 */

assert.deepPropertyNotVal = function (obj, prop, val, msg) {
  new Assertion(obj, msg).to.not.have.deep.property(prop, val);
};

/**
 * ### .lengthOf(object, length, [message])
 *
 * Asserts that `object` has a `length` property with the expected value.
 *
 *     assert.lengthOf([1,2,3], 3, 'array has length of 3');
 *     assert.lengthOf('foobar', 5, 'string has length of 6');
 *
 * @name lengthOf
 * @param {Mixed} object
 * @param {Number} length
 * @param {String} message
 * @api public
 */

assert.lengthOf = function (exp, len, msg) {
  new Assertion(exp, msg).to.have.length(len);
};

/**
 * ### .throws(function, [constructor/string/regexp], [string/regexp], [message])
 *
 * Asserts that `function` will throw an error that is an instance of
 * `constructor`, or alternately that it will throw an error with message
 * matching `regexp`.
 *
 *     assert.throw(fn, 'function throws a reference error');
 *     assert.throw(fn, /function throws a reference error/);
 *     assert.throw(fn, ReferenceError);
 *     assert.throw(fn, ReferenceError, 'function throws a reference error');
 *     assert.throw(fn, ReferenceError, /function throws a reference error/);
 *
 * @name throws
 * @alias throw
 * @alias Throw
 * @param {Function} function
 * @param {ErrorConstructor} constructor
 * @param {RegExp} regexp
 * @param {String} message
 * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
 * @api public
 */

assert.Throw = function (fn, errt, errs, msg) {
  if ('string' === typeof errt || errt instanceof RegExp) {
    errs = errt;
    errt = null;
  }

  var assertErr = new Assertion(fn, msg).to.Throw(errt, errs);
  return flag(assertErr, 'object');
};

/**
 * ### .doesNotThrow(function, [constructor/regexp], [message])
 *
 * Asserts that `function` will _not_ throw an error that is an instance of
 * `constructor`, or alternately that it will not throw an error with message
 * matching `regexp`.
 *
 *     assert.doesNotThrow(fn, Error, 'function does not throw');
 *
 * @name doesNotThrow
 * @param {Function} function
 * @param {ErrorConstructor} constructor
 * @param {RegExp} regexp
 * @param {String} message
 * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
 * @api public
 */

assert.doesNotThrow = function (fn, type, msg) {
  if ('string' === typeof type) {
    msg = type;
    type = null;
  }

  new Assertion(fn, msg).to.not.Throw(type);
};

/**
 * ### .operator(val1, operator, val2, [message])
 *
 * Compares two values using `operator`.
 *
 *     assert.operator(1, '<', 2, 'everything is ok');
 *     assert.operator(1, '>', 2, 'this will fail');
 *
 * @name operator
 * @param {Mixed} val1
 * @param {String} operator
 * @param {Mixed} val2
 * @param {String} message
 * @api public
 */

assert.operator = function (val, operator, val2, msg) {
  if (!~['==', '===', '>', '>=', '<', '<=', '!=', '!=='].indexOf(operator)) {
    throw new Error('Invalid operator "' + operator + '"');
  }
  var test = new Assertion(eval(val + operator + val2), msg);
  test.assert(
      true === flag(test, 'object')
    , 'expected ' + util.inspect(val) + ' to be ' + operator + ' ' + util.inspect(val2)
    , 'expected ' + util.inspect(val) + ' to not be ' + operator + ' ' + util.inspect(val2) );
};

/**
 * ### .closeTo(actual, expected, delta, [message])
 *
 * Asserts that the target is equal `expected`, to within a +/- `delta` range.
 *
 *     assert.closeTo(1.5, 1, 0.5, 'numbers are close');
 *
 * @name closeTo
 * @param {Number} actual
 * @param {Number} expected
 * @param {Number} delta
 * @param {String} message
 * @api public
 */

assert.closeTo = function (act, exp, delta, msg) {
  new Assertion(act, msg).to.be.closeTo(exp, delta);
};

/**
 * ### .sameMembers(set1, set2, [message])
 *
 * Asserts that `set1` and `set2` have the same members.
 * Order is not taken into account.
 *
 *     assert.sameMembers([ 1, 2, 3 ], [ 2, 1, 3 ], 'same members');
 *
 * @name sameMembers
 * @param {Array} superset
 * @param {Array} subset
 * @param {String} message
 * @api public
 */

assert.sameMembers = function (set1, set2, msg) {
  new Assertion(set1, msg).to.have.same.members(set2);
}

/**
 * ### .includeMembers(superset, subset, [message])
 *
 * Asserts that `subset` is included in `superset`.
 * Order is not taken into account.
 *
 *     assert.includeMembers([ 1, 2, 3 ], [ 2, 1 ], 'include members');
 *
 * @name includeMembers
 * @param {Array} superset
 * @param {Array} subset
 * @param {String} message
 * @api public
 */

assert.includeMembers = function (superset, subset, msg) {
  new Assertion(superset, msg).to.include.members(subset);
}

/*!
 * Undocumented / untested
 */

assert.ifError = function (val, msg) {
  new Assertion(val, msg).to.not.be.ok;
};

/*!
 * Aliases.
 */

(function alias(name, as){
  assert[as] = assert[name];
  return alias;
})
('Throw', 'throw')
('Throw', 'throws');

};

}); require.register(“chai/lib/chai/interface/expect.js”, function(exports, require, module){ /*!

* chai
* Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

module.exports = function (chai, util) {

chai.expect = function (val, message) {
  return new chai.Assertion(val, message);
};

};

}); require.register(“chai/lib/chai/interface/should.js”, function(exports, require, module){ /*!

* chai
* Copyright(c) 2011-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

module.exports = function (chai, util) {

var Assertion = chai.Assertion;

function loadShould () {
  // explicitly define this method as function as to have it's name to include as `ssfi`
  function shouldGetter() {
    if (this instanceof String || this instanceof Number) {
      return new Assertion(this.constructor(this), null, shouldGetter);
    } else if (this instanceof Boolean) {
      return new Assertion(this == true, null, shouldGetter);
    }
    return new Assertion(this, null, shouldGetter);
  }
  function shouldSetter(value) {
    // See https://github.com/chaijs/chai/issues/86: this makes
    // `whatever.should = someValue` actually set `someValue`, which is
    // especially useful for `global.should = require('chai').should()`.
    //
    // Note that we have to use [[DefineProperty]] instead of [[Put]]
    // since otherwise we would trigger this very setter!
    Object.defineProperty(this, 'should', {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  }
  // modify Object.prototype to have `should`
  Object.defineProperty(Object.prototype, 'should', {
    set: shouldSetter
    , get: shouldGetter
    , configurable: true
  });

  var should = {};

  should.equal = function (val1, val2, msg) {
    new Assertion(val1, msg).to.equal(val2);
  };

  should.Throw = function (fn, errt, errs, msg) {
    new Assertion(fn, msg).to.Throw(errt, errs);
  };

  should.exist = function (val, msg) {
    new Assertion(val, msg).to.exist;
  }

  // negation
  should.not = {}

  should.not.equal = function (val1, val2, msg) {
    new Assertion(val1, msg).to.not.equal(val2);
  };

  should.not.Throw = function (fn, errt, errs, msg) {
    new Assertion(fn, msg).to.not.Throw(errt, errs);
  };

  should.not.exist = function (val, msg) {
    new Assertion(val, msg).to.not.exist;
  }

  should['throw'] = should['Throw'];
  should.not['throw'] = should.not['Throw'];

  return should;
};

chai.should = loadShould;
chai.Should = loadShould;

};

}); require.register(“chai/lib/chai/utils/addChainableMethod.js”, function(exports, require, module){ /*!

* Chai - addChainingMethod utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Module dependencies
*/

var transferFlags = require('./transferFlags'); var flag = require('./flag'); var config = require('../config');

/*!

* Module variables
*/

// Check whether `__proto__` is supported var hasProtoSupport = '__proto__' in Object;

// Without `__proto__` support, this module will need to add properties to a function. // However, some Function.prototype methods cannot be overwritten, // and there seems no easy cross-platform way to detect them (@see chaijs/chai/issues/69). var excludeNames = /^(?:length|name|arguments|caller)$/;

// Cache `Function` properties var call = Function.prototype.call,

apply = Function.prototype.apply;

/**

* ### addChainableMethod (ctx, name, method, chainingBehavior)
*
* Adds a method to an object, such that the method can also be chained.
*
*     utils.addChainableMethod(chai.Assertion.prototype, 'foo', function (str) {
*       var obj = utils.flag(this, 'object');
*       new chai.Assertion(obj).to.be.equal(str);
*     });
*
* Can also be accessed directly from `chai.Assertion`.
*
*     chai.Assertion.addChainableMethod('foo', fn, chainingBehavior);
*
* The result can then be used as both a method assertion, executing both `method` and
* `chainingBehavior`, or as a language chain, which only executes `chainingBehavior`.
*
*     expect(fooStr).to.be.foo('bar');
*     expect(fooStr).to.be.foo.equal('foo');
*
* @param {Object} ctx object to which the method is added
* @param {String} name of method to add
* @param {Function} method function to be used for `name`, when called
* @param {Function} chainingBehavior function to be called every time the property is accessed
* @name addChainableMethod
* @api public
*/

module.exports = function (ctx, name, method, chainingBehavior) {

if (typeof chainingBehavior !== 'function') {
  chainingBehavior = function () { };
}

var chainableBehavior = {
    method: method
  , chainingBehavior: chainingBehavior
};

// save the methods so we can overwrite them later, if we need to.
if (!ctx.__methods) {
  ctx.__methods = {};
}
ctx.__methods[name] = chainableBehavior;

Object.defineProperty(ctx, name,
  { get: function () {
      chainableBehavior.chainingBehavior.call(this);

      var assert = function assert() {
        var old_ssfi = flag(this, 'ssfi');
        if (old_ssfi && config.includeStack === false)
          flag(this, 'ssfi', assert);
        var result = chainableBehavior.method.apply(this, arguments);
        return result === undefined ? this : result;
      };

      // Use `__proto__` if available
      if (hasProtoSupport) {
        // Inherit all properties from the object by replacing the `Function` prototype
        var prototype = assert.__proto__ = Object.create(this);
        // Restore the `call` and `apply` methods from `Function`
        prototype.call = call;
        prototype.apply = apply;
      }
      // Otherwise, redefine all properties (slow!)
      else {
        var asserterNames = Object.getOwnPropertyNames(ctx);
        asserterNames.forEach(function (asserterName) {
          if (!excludeNames.test(asserterName)) {
            var pd = Object.getOwnPropertyDescriptor(ctx, asserterName);
            Object.defineProperty(assert, asserterName, pd);
          }
        });
      }

      transferFlags(this, assert);
      return assert;
    }
  , configurable: true
});

};

}); require.register(“chai/lib/chai/utils/addMethod.js”, function(exports, require, module){ /*!

* Chai - addMethod utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

var config = require('../config');

/**

* ### .addMethod (ctx, name, method)
*
* Adds a method to the prototype of an object.
*
*     utils.addMethod(chai.Assertion.prototype, 'foo', function (str) {
*       var obj = utils.flag(this, 'object');
*       new chai.Assertion(obj).to.be.equal(str);
*     });
*
* Can also be accessed directly from `chai.Assertion`.
*
*     chai.Assertion.addMethod('foo', fn);
*
* Then can be used as any other assertion.
*
*     expect(fooStr).to.be.foo('bar');
*
* @param {Object} ctx object to which the method is added
* @param {String} name of method to add
* @param {Function} method function to be used for name
* @name addMethod
* @api public
*/

var flag = require('./flag');

module.exports = function (ctx, name, method) {

ctx[name] = function () {
  var old_ssfi = flag(this, 'ssfi');
  if (old_ssfi && config.includeStack === false)
    flag(this, 'ssfi', ctx[name]);
  var result = method.apply(this, arguments);
  return result === undefined ? this : result;
};

};

}); require.register(“chai/lib/chai/utils/addProperty.js”, function(exports, require, module){ /*!

* Chai - addProperty utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### addProperty (ctx, name, getter)
*
* Adds a property to the prototype of an object.
*
*     utils.addProperty(chai.Assertion.prototype, 'foo', function () {
*       var obj = utils.flag(this, 'object');
*       new chai.Assertion(obj).to.be.instanceof(Foo);
*     });
*
* Can also be accessed directly from `chai.Assertion`.
*
*     chai.Assertion.addProperty('foo', fn);
*
* Then can be used as any other assertion.
*
*     expect(myFoo).to.be.foo;
*
* @param {Object} ctx object to which the property is added
* @param {String} name of property to add
* @param {Function} getter function to be used for name
* @name addProperty
* @api public
*/

module.exports = function (ctx, name, getter) {

Object.defineProperty(ctx, name,
  { get: function () {
      var result = getter.call(this);
      return result === undefined ? this : result;
    }
  , configurable: true
});

};

}); require.register(“chai/lib/chai/utils/flag.js”, function(exports, require, module){ /*!

* Chai - flag utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### flag(object ,key, [value])
*
* Get or set a flag value on an object. If a
* value is provided it will be set, else it will
* return the currently set value or `undefined` if
* the value is not set.
*
*     utils.flag(this, 'foo', 'bar'); // setter
*     utils.flag(this, 'foo'); // getter, returns `bar`
*
* @param {Object} object (constructed Assertion
* @param {String} key
* @param {Mixed} value (optional)
* @name flag
* @api private
*/

module.exports = function (obj, key, value) {

var flags = obj.__flags || (obj.__flags = Object.create(null));
if (arguments.length === 3) {
  flags[key] = value;
} else {
  return flags[key];
}

};

}); require.register(“chai/lib/chai/utils/getActual.js”, function(exports, require, module){ /*!

* Chai - getActual utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* # getActual(object, [actual])
*
* Returns the `actual` value for an Assertion
*
* @param {Object} object (constructed Assertion)
* @param {Arguments} chai.Assertion.prototype.assert arguments
*/

module.exports = function (obj, args) {

return args.length > 4 ? args[4] : obj._obj;

};

}); require.register(“chai/lib/chai/utils/getEnumerableProperties.js”, function(exports, require, module){ /*!

* Chai - getEnumerableProperties utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### .getEnumerableProperties(object)
*
* This allows the retrieval of enumerable property names of an object,
* inherited or not.
*
* @param {Object} object
* @returns {Array}
* @name getEnumerableProperties
* @api public
*/

module.exports = function getEnumerableProperties(object) {

var result = [];
for (var name in object) {
  result.push(name);
}
return result;

};

}); require.register(“chai/lib/chai/utils/getMessage.js”, function(exports, require, module){ /*!

* Chai - message composition utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Module dependancies
*/

var flag = require('./flag')

, getActual = require('./getActual')
, inspect = require('./inspect')
, objDisplay = require('./objDisplay');

/**

* ### .getMessage(object, message, negateMessage)
*
* Construct the error message based on flags
* and template tags. Template tags will return
* a stringified inspection of the object referenced.
*
* Message template tags:
* - `#{this}` current asserted object
* - `#{act}` actual value
* - `#{exp}` expected value
*
* @param {Object} object (constructed Assertion)
* @param {Arguments} chai.Assertion.prototype.assert arguments
* @name getMessage
* @api public
*/

module.exports = function (obj, args) {

var negate = flag(obj, 'negate')
  , val = flag(obj, 'object')
  , expected = args[3]
  , actual = getActual(obj, args)
  , msg = negate ? args[2] : args[1]
  , flagMsg = flag(obj, 'message');

msg = msg || '';
msg = msg
  .replace(/#{this}/g, objDisplay(val))
  .replace(/#{act}/g, objDisplay(actual))
  .replace(/#{exp}/g, objDisplay(expected));

return flagMsg ? flagMsg + ': ' + msg : msg;

};

}); require.register(“chai/lib/chai/utils/getName.js”, function(exports, require, module){ /*!

* Chai - getName utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* # getName(func)
*
* Gets the name of a function, in a cross-browser way.
*
* @param {Function} a function (usually a constructor)
*/

module.exports = function (func) {

if (func.name) return func.name;

var match = /^\s?function ([^(]*)\(/.exec(func);
return match && match[1] ? match[1] : "";

};

}); require.register(“chai/lib/chai/utils/getPathValue.js”, function(exports, require, module){ /*!

* Chai - getPathValue utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* @see https://github.com/logicalparadox/filtr
* MIT Licensed
*/

/**

* ### .getPathValue(path, object)
*
* This allows the retrieval of values in an
* object given a string path.
*
*     var obj = {
*         prop1: {
*             arr: ['a', 'b', 'c']
*           , str: 'Hello'
*         }
*       , prop2: {
*             arr: [ { nested: 'Universe' } ]
*           , str: 'Hello again!'
*         }
*     }
*
* The following would be the results.
*
*     getPathValue('prop1.str', obj); // Hello
*     getPathValue('prop1.att[2]', obj); // b
*     getPathValue('prop2.arr[0].nested', obj); // Universe
*
* @param {String} path
* @param {Object} object
* @returns {Object} value or `undefined`
* @name getPathValue
* @api public
*/

var getPathValue = module.exports = function (path, obj) {

var parsed = parsePath(path);
return _getPathValue(parsed, obj);

};

/*!

* ## parsePath(path)
*
* Helper function used to parse string object
* paths. Use in conjunction with `_getPathValue`.
*
*      var parsed = parsePath('myobject.property.subprop');
*
* ### Paths:
*
* * Can be as near infinitely deep and nested
* * Arrays are also valid using the formal `myobject.document[3].property`.
*
* @param {String} path
* @returns {Object} parsed
* @api private
*/

function parsePath (path) {

var str = path.replace(/\[/g, '.[')
  , parts = str.match(/(\\\.|[^.]+?)+/g);
return parts.map(function (value) {
  var re = /\[(\d+)\]$/
    , mArr = re.exec(value)
  if (mArr) return { i: parseFloat(mArr[1]) };
  else return { p: value };
});

};

/*!

* ## _getPathValue(parsed, obj)
*
* Helper companion function for `.parsePath` that returns
* the value located at the parsed address.
*
*      var value = getPathValue(parsed, obj);
*
* @param {Object} parsed definition from `parsePath`.
* @param {Object} object to search against
* @returns {Object|Undefined} value
* @api private
*/

function _getPathValue (parsed, obj) {

var tmp = obj
  , res;
for (var i = 0, l = parsed.length; i < l; i++) {
  var part = parsed[i];
  if (tmp) {
    if ('undefined' !== typeof part.p)
      tmp = tmp[part.p];
    else if ('undefined' !== typeof part.i)
      tmp = tmp[part.i];
    if (i == (l - 1)) res = tmp;
  } else {
    res = undefined;
  }
}
return res;

};

}); require.register(“chai/lib/chai/utils/getProperties.js”, function(exports, require, module){ /*!

* Chai - getProperties utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### .getProperties(object)
*
* This allows the retrieval of property names of an object, enumerable or not,
* inherited or not.
*
* @param {Object} object
* @returns {Array}
* @name getProperties
* @api public
*/

module.exports = function getProperties(object) {

var result = Object.getOwnPropertyNames(subject);

function addProperty(property) {
  if (result.indexOf(property) === -1) {
    result.push(property);
  }
}

var proto = Object.getPrototypeOf(subject);
while (proto !== null) {
  Object.getOwnPropertyNames(proto).forEach(addProperty);
  proto = Object.getPrototypeOf(proto);
}

return result;

};

}); require.register(“chai/lib/chai/utils/index.js”, function(exports, require, module){ /*!

* chai
* Copyright(c) 2011 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Main exports
*/

var exports = module.exports = {};

/*!

* test utility
*/

exports.test = require('./test');

/*!

* type utility
*/

exports.type = require('./type');

/*!

* message utility
*/

exports.getMessage = require('./getMessage');

/*!

* actual utility
*/

exports.getActual = require('./getActual');

/*!

* Inspect util
*/

exports.inspect = require('./inspect');

/*!

* Object Display util
*/

exports.objDisplay = require('./objDisplay');

/*!

* Flag utility
*/

exports.flag = require('./flag');

/*!

* Flag transferring utility
*/

exports.transferFlags = require('./transferFlags');

/*!

* Deep equal utility
*/

exports.eql = require('deep-eql');

/*!

* Deep path value
*/

exports.getPathValue = require('./getPathValue');

/*!

* Function name
*/

exports.getName = require('./getName');

/*!

* add Property
*/

exports.addProperty = require('./addProperty');

/*!

* add Method
*/

exports.addMethod = require('./addMethod');

/*!

* overwrite Property
*/

exports.overwriteProperty = require('./overwriteProperty');

/*!

* overwrite Method
*/

exports.overwriteMethod = require('./overwriteMethod');

/*!

* Add a chainable method
*/

exports.addChainableMethod = require('./addChainableMethod');

/*!

* Overwrite chainable method
*/

exports.overwriteChainableMethod = require('./overwriteChainableMethod');

}); require.register(“chai/lib/chai/utils/inspect.js”, function(exports, require, module){ // This is (almost) directly from Node.js utils // github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/util.js

var getName = require('./getName'); var getProperties = require('./getProperties'); var getEnumerableProperties = require('./getEnumerableProperties');

module.exports = inspect;

/**

* Echos the value of a value. Trys to print the value out
* in the best way possible given the different types.
*
* @param {Object} obj The object to print out.
* @param {Boolean} showHidden Flag that shows hidden (not enumerable)
*    properties of objects.
* @param {Number} depth Depth in which to descend in object. Default is 2.
* @param {Boolean} colors Flag to turn on ANSI escape codes to color the
*    output. Default is false (no coloring).
*/

function inspect(obj, showHidden, depth, colors) {

var ctx = {
  showHidden: showHidden,
  seen: [],
  stylize: function (str) { return str; }
};
return formatValue(ctx, obj, (typeof depth === 'undefined' ? 2 : depth));

}

// gist.github.com/1044128/ var getOuterHTML = function(element) {

if ('outerHTML' in element) return element.outerHTML;
var ns = "http://www.w3.org/1999/xhtml";
var container = document.createElementNS(ns, '_');
var elemProto = (window.HTMLElement || window.Element).prototype;
var xmlSerializer = new XMLSerializer();
var html;
if (document.xmlVersion) {
  return xmlSerializer.serializeToString(element);
} else {
  container.appendChild(element.cloneNode(false));
  html = container.innerHTML.replace('><', '>' + element.innerHTML + '<');
  container.innerHTML = '';
  return html;
}

};

// Returns true if object is a DOM element. var isDOMElement = function (object) {

if (typeof HTMLElement === 'object') {
  return object instanceof HTMLElement;
} else {
  return object &&
    typeof object === 'object' &&
    object.nodeType === 1 &&
    typeof object.nodeName === 'string';
}

};

function formatValue(ctx, value, recurseTimes) {

// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (value && typeof value.inspect === 'function' &&
    // Filter out the util module, it's inspect function is special
    value.inspect !== exports.inspect &&
    // Also filter out any prototype objects using the circular check.
    !(value.constructor && value.constructor.prototype === value)) {
  var ret = value.inspect(recurseTimes);
  if (typeof ret !== 'string') {
    ret = formatValue(ctx, ret, recurseTimes);
  }
  return ret;
}

// Primitive types cannot have properties
var primitive = formatPrimitive(ctx, value);
if (primitive) {
  return primitive;
}

// If it's DOM elem, get outer HTML.
if (isDOMElement(value)) {
  return getOuterHTML(value);
}

// Look up the keys of the object.
var visibleKeys = getEnumerableProperties(value);
var keys = ctx.showHidden ? getProperties(value) : visibleKeys;

// Some type of object without properties can be shortcutted.
// In IE, errors have a single `stack` property, or if they are vanilla `Error`,
// a `stack` plus `description` property; ignore those for consistency.
if (keys.length === 0 || (isError(value) && (
    (keys.length === 1 && keys[0] === 'stack') ||
    (keys.length === 2 && keys[0] === 'description' && keys[1] === 'stack')
   ))) {
  if (typeof value === 'function') {
    var name = getName(value);
    var nameSuffix = name ? ': ' + name : '';
    return ctx.stylize('[Function' + nameSuffix + ']', 'special');
  }
  if (isRegExp(value)) {
    return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
  }
  if (isDate(value)) {
    return ctx.stylize(Date.prototype.toUTCString.call(value), 'date');
  }
  if (isError(value)) {
    return formatError(value);
  }
}

var base = '', array = false, braces = ['{', '}'];

// Make Array say that they are Array
if (isArray(value)) {
  array = true;
  braces = ['[', ']'];
}

// Make functions say that they are functions
if (typeof value === 'function') {
  var name = getName(value);
  var nameSuffix = name ? ': ' + name : '';
  base = ' [Function' + nameSuffix + ']';
}

// Make RegExps say that they are RegExps
if (isRegExp(value)) {
  base = ' ' + RegExp.prototype.toString.call(value);
}

// Make dates with properties first say the date
if (isDate(value)) {
  base = ' ' + Date.prototype.toUTCString.call(value);
}

// Make error with message first say the error
if (isError(value)) {
  return formatError(value);
}

if (keys.length === 0 && (!array || value.length == 0)) {
  return braces[0] + base + braces[1];
}

if (recurseTimes < 0) {
  if (isRegExp(value)) {
    return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
  } else {
    return ctx.stylize('[Object]', 'special');
  }
}

ctx.seen.push(value);

var output;
if (array) {
  output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
} else {
  output = keys.map(function(key) {
    return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
  });
}

ctx.seen.pop();

return reduceToSingleString(output, base, braces);

}

function formatPrimitive(ctx, value) {

switch (typeof value) {
  case 'undefined':
    return ctx.stylize('undefined', 'undefined');

  case 'string':
    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                             .replace(/'/g, "\\'")
                                             .replace(/\\"/g, '"') + '\'';
    return ctx.stylize(simple, 'string');

  case 'number':
    return ctx.stylize('' + value, 'number');

  case 'boolean':
    return ctx.stylize('' + value, 'boolean');
}
// For some reason typeof null is "object", so special case here.
if (value === null) {
  return ctx.stylize('null', 'null');
}

}

function formatError(value) {

return '[' + Error.prototype.toString.call(value) + ']';

}

function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {

var output = [];
for (var i = 0, l = value.length; i < l; ++i) {
  if (Object.prototype.hasOwnProperty.call(value, String(i))) {
    output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
        String(i), true));
  } else {
    output.push('');
  }
}
keys.forEach(function(key) {
  if (!key.match(/^\d+$/)) {
    output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
        key, true));
  }
});
return output;

}

function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {

var name, str;
if (value.__lookupGetter__) {
  if (value.__lookupGetter__(key)) {
    if (value.__lookupSetter__(key)) {
      str = ctx.stylize('[Getter/Setter]', 'special');
    } else {
      str = ctx.stylize('[Getter]', 'special');
    }
  } else {
    if (value.__lookupSetter__(key)) {
      str = ctx.stylize('[Setter]', 'special');
    }
  }
}
if (visibleKeys.indexOf(key) < 0) {
  name = '[' + key + ']';
}
if (!str) {
  if (ctx.seen.indexOf(value[key]) < 0) {
    if (recurseTimes === null) {
      str = formatValue(ctx, value[key], null);
    } else {
      str = formatValue(ctx, value[key], recurseTimes - 1);
    }
    if (str.indexOf('\n') > -1) {
      if (array) {
        str = str.split('\n').map(function(line) {
          return '  ' + line;
        }).join('\n').substr(2);
      } else {
        str = '\n' + str.split('\n').map(function(line) {
          return '   ' + line;
        }).join('\n');
      }
    }
  } else {
    str = ctx.stylize('[Circular]', 'special');
  }
}
if (typeof name === 'undefined') {
  if (array && key.match(/^\d+$/)) {
    return str;
  }
  name = JSON.stringify('' + key);
  if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
    name = name.substr(1, name.length - 2);
    name = ctx.stylize(name, 'name');
  } else {
    name = name.replace(/'/g, "\\'")
               .replace(/\\"/g, '"')
               .replace(/(^"|"$)/g, "'");
    name = ctx.stylize(name, 'string');
  }
}

return name + ': ' + str;

}

function reduceToSingleString(output, base, braces) {

var numLinesEst = 0;
var length = output.reduce(function(prev, cur) {
  numLinesEst++;
  if (cur.indexOf('\n') >= 0) numLinesEst++;
  return prev + cur.length + 1;
}, 0);

if (length > 60) {
  return braces[0] +
         (base === '' ? '' : base + '\n ') +
         ' ' +
         output.join(',\n  ') +
         ' ' +
         braces[1];
}

return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];

}

function isArray(ar) {

return Array.isArray(ar) ||
       (typeof ar === 'object' && objectToString(ar) === '[object Array]');

}

function isRegExp(re) {

return typeof re === 'object' && objectToString(re) === '[object RegExp]';

}

function isDate(d) {

return typeof d === 'object' && objectToString(d) === '[object Date]';

}

function isError(e) {

return typeof e === 'object' && objectToString(e) === '[object Error]';

}

function objectToString(o) {

return Object.prototype.toString.call(o);

}

}); require.register(“chai/lib/chai/utils/objDisplay.js”, function(exports, require, module){ /*!

* Chai - flag utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Module dependancies
*/

var inspect = require('./inspect'); var config = require('../config');

/**

* ### .objDisplay (object)
*
* Determines if an object or an array matches
* criteria to be inspected in-line for error
* messages or should be truncated.
*
* @param {Mixed} javascript object to inspect
* @name objDisplay
* @api public
*/

module.exports = function (obj) {

var str = inspect(obj)
  , type = Object.prototype.toString.call(obj);

if (config.truncateThreshold && str.length >= config.truncateThreshold) {
  if (type === '[object Function]') {
    return !obj.name || obj.name === ''
      ? '[Function]'
      : '[Function: ' + obj.name + ']';
  } else if (type === '[object Array]') {
    return '[ Array(' + obj.length + ') ]';
  } else if (type === '[object Object]') {
    var keys = Object.keys(obj)
      , kstr = keys.length > 2
        ? keys.splice(0, 2).join(', ') + ', ...'
        : keys.join(', ');
    return '{ Object (' + kstr + ') }';
  } else {
    return str;
  }
} else {
  return str;
}

};

}); require.register(“chai/lib/chai/utils/overwriteMethod.js”, function(exports, require, module){ /*!

* Chai - overwriteMethod utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### overwriteMethod (ctx, name, fn)
*
* Overwites an already existing method and provides
* access to previous function. Must return function
* to be used for name.
*
*     utils.overwriteMethod(chai.Assertion.prototype, 'equal', function (_super) {
*       return function (str) {
*         var obj = utils.flag(this, 'object');
*         if (obj instanceof Foo) {
*           new chai.Assertion(obj.value).to.equal(str);
*         } else {
*           _super.apply(this, arguments);
*         }
*       }
*     });
*
* Can also be accessed directly from `chai.Assertion`.
*
*     chai.Assertion.overwriteMethod('foo', fn);
*
* Then can be used as any other assertion.
*
*     expect(myFoo).to.equal('bar');
*
* @param {Object} ctx object whose method is to be overwritten
* @param {String} name of method to overwrite
* @param {Function} method function that returns a function to be used for name
* @name overwriteMethod
* @api public
*/

module.exports = function (ctx, name, method) {

var _method = ctx[name]
  , _super = function () { return this; };

if (_method && 'function' === typeof _method)
  _super = _method;

ctx[name] = function () {
  var result = method(_super).apply(this, arguments);
  return result === undefined ? this : result;
}

};

}); require.register(“chai/lib/chai/utils/overwriteProperty.js”, function(exports, require, module){ /*!

* Chai - overwriteProperty utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### overwriteProperty (ctx, name, fn)
*
* Overwites an already existing property getter and provides
* access to previous value. Must return function to use as getter.
*
*     utils.overwriteProperty(chai.Assertion.prototype, 'ok', function (_super) {
*       return function () {
*         var obj = utils.flag(this, 'object');
*         if (obj instanceof Foo) {
*           new chai.Assertion(obj.name).to.equal('bar');
*         } else {
*           _super.call(this);
*         }
*       }
*     });
*
*
* Can also be accessed directly from `chai.Assertion`.
*
*     chai.Assertion.overwriteProperty('foo', fn);
*
* Then can be used as any other assertion.
*
*     expect(myFoo).to.be.ok;
*
* @param {Object} ctx object whose property is to be overwritten
* @param {String} name of property to overwrite
* @param {Function} getter function that returns a getter function to be used for name
* @name overwriteProperty
* @api public
*/

module.exports = function (ctx, name, getter) {

var _get = Object.getOwnPropertyDescriptor(ctx, name)
  , _super = function () {};

if (_get && 'function' === typeof _get.get)
  _super = _get.get

Object.defineProperty(ctx, name,
  { get: function () {
      var result = getter(_super).call(this);
      return result === undefined ? this : result;
    }
  , configurable: true
});

};

}); require.register(“chai/lib/chai/utils/overwriteChainableMethod.js”, function(exports, require, module){ /*!

* Chai - overwriteChainableMethod utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### overwriteChainableMethod (ctx, name, fn)
*
* Overwites an already existing chainable method
* and provides access to the previous function or
* property.  Must return functions to be used for
* name.
*
*     utils.overwriteChainableMethod(chai.Assertion.prototype, 'length',
*       function (_super) {
*       }
*     , function (_super) {
*       }
*     );
*
* Can also be accessed directly from `chai.Assertion`.
*
*     chai.Assertion.overwriteChainableMethod('foo', fn, fn);
*
* Then can be used as any other assertion.
*
*     expect(myFoo).to.have.length(3);
*     expect(myFoo).to.have.length.above(3);
*
* @param {Object} ctx object whose method / property is to be overwritten
* @param {String} name of method / property to overwrite
* @param {Function} method function that returns a function to be used for name
* @param {Function} chainingBehavior function that returns a function to be used for property
* @name overwriteChainableMethod
* @api public
*/

module.exports = function (ctx, name, method, chainingBehavior) {

var chainableBehavior = ctx.__methods[name];

var _chainingBehavior = chainableBehavior.chainingBehavior;
chainableBehavior.chainingBehavior = function () {
  var result = chainingBehavior(_chainingBehavior).call(this);
  return result === undefined ? this : result;
};

var _method = chainableBehavior.method;
chainableBehavior.method = function () {
  var result = method(_method).apply(this, arguments);
  return result === undefined ? this : result;
};

};

}); require.register(“chai/lib/chai/utils/test.js”, function(exports, require, module){ /*!

* Chai - test utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Module dependancies
*/

var flag = require('./flag');

/**

* # test(object, expression)
*
* Test and object for expression.
*
* @param {Object} object (constructed Assertion)
* @param {Arguments} chai.Assertion.prototype.assert arguments
*/

module.exports = function (obj, args) {

var negate = flag(obj, 'negate')
  , expr = args[0];
return negate ? !expr : expr;

};

}); require.register(“chai/lib/chai/utils/transferFlags.js”, function(exports, require, module){ /*!

* Chai - transferFlags utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/**

* ### transferFlags(assertion, object, includeAll = true)
*
* Transfer all the flags for `assertion` to `object`. If
* `includeAll` is set to `false`, then the base Chai
* assertion flags (namely `object`, `ssfi`, and `message`)
* will not be transferred.
*
*
*     var newAssertion = new Assertion();
*     utils.transferFlags(assertion, newAssertion);
*
*     var anotherAsseriton = new Assertion(myObj);
*     utils.transferFlags(assertion, anotherAssertion, false);
*
* @param {Assertion} assertion the assertion to transfer the flags from
* @param {Object} object the object to transfer the flags too; usually a new assertion
* @param {Boolean} includeAll
* @name getAllFlags
* @api private
*/

module.exports = function (assertion, object, includeAll) {

var flags = assertion.__flags || (assertion.__flags = Object.create(null));

if (!object.__flags) {
  object.__flags = Object.create(null);
}

includeAll = arguments.length === 3 ? includeAll : true;

for (var flag in flags) {
  if (includeAll ||
      (flag !== 'object' && flag !== 'ssfi' && flag != 'message')) {
    object.__flags[flag] = flags[flag];
  }
}

};

}); require.register(“chai/lib/chai/utils/type.js”, function(exports, require, module){ /*!

* Chai - type utility
* Copyright(c) 2012-2014 Jake Luer <jake@alogicalparadox.com>
* MIT Licensed
*/

/*!

* Detectable javascript natives
*/

var natives = {

  '[object Arguments]': 'arguments'
, '[object Array]': 'array'
, '[object Date]': 'date'
, '[object Function]': 'function'
, '[object Number]': 'number'
, '[object RegExp]': 'regexp'
, '[object String]': 'string'

};

/**

* ### type(object)
*
* Better implementation of `typeof` detection that can
* be used cross-browser. Handles the inconsistencies of
* Array, `null`, and `undefined` detection.
*
*     utils.type({}) // 'object'
*     utils.type(null) // `null'
*     utils.type(undefined) // `undefined`
*     utils.type([]) // `array`
*
* @param {Mixed} object to detect type of
* @name type
* @api private
*/

module.exports = function (obj) {

var str = Object.prototype.toString.call(obj);
if (natives[str]) return natives[str];
if (obj === null) return 'null';
if (obj === undefined) return 'undefined';
if (obj === Object(obj)) return 'object';
return typeof obj;

};

});

require.alias(“chaijs-assertion-error/index.js”, “chai/deps/assertion-error/index.js”); require.alias(“chaijs-assertion-error/index.js”, “chai/deps/assertion-error/index.js”); require.alias(“chaijs-assertion-error/index.js”, “assertion-error/index.js”); require.alias(“chaijs-assertion-error/index.js”, “chaijs-assertion-error/index.js”); require.alias(“chaijs-deep-eql/lib/eql.js”, “chai/deps/deep-eql/lib/eql.js”); require.alias(“chaijs-deep-eql/lib/eql.js”, “chai/deps/deep-eql/index.js”); require.alias(“chaijs-deep-eql/lib/eql.js”, “deep-eql/index.js”); require.alias(“chaijs-type-detect/lib/type.js”, “chaijs-deep-eql/deps/type-detect/lib/type.js”); require.alias(“chaijs-type-detect/lib/type.js”, “chaijs-deep-eql/deps/type-detect/index.js”); require.alias(“chaijs-type-detect/lib/type.js”, “chaijs-type-detect/index.js”); require.alias(“chaijs-deep-eql/lib/eql.js”, “chaijs-deep-eql/index.js”); require.alias(“chai/index.js”, “chai/index.js”);if (typeof exports == “object”) {

module.exports = require("chai");

} else if (typeof define == “function” && define.amd) {

define([], function(){ return require("chai"); });

} else {

this["chai"] = require("chai");

}})();