(function () {
'use strict';

var assert = chai.assert;

assert.lengthOfKeys = function (val, count, msg) {

    var keyCount = _.keys(val).length;
    assert(keyCount === count, msg ? msg : 'expected ' + val + ' to have ' + count + ' keys, but has ' + keyCount);
};

assert.isPlainObject = function (val, msg) {

    assert($.isPlainObject(val), msg ? msg : 'expected ' + val + ' to be a plain Object');
};

}());