gerich-home/it-depends

var Benchmark = require('benchmark');
var itDepends = require('../../out/dist/it-depends.js');
var ko = require('knockout');

module.exports = function(subscribersCount) {
    Benchmark.prototype.args = {
        subscribersCount: subscribersCount,
        ko: ko,
        itDepends: itDepends
    };

    Benchmark.prototype.setup = function() {
        var subscribersCount = this.args.subscribersCount;
        var ko = this.args.ko;
        var itDepends = this.args.itDepends;

        var calculator = function() {
            return 0;
        };

        function _noop() {
            return function() {};
        };
        
        var kocomputed = ko.pureComputed(calculator);
        var idcomputed = itDepends.computed(calculator).withNoArgs();
    };

    var suite = new Benchmark.Suite('subscribe to computed with ' + subscribersCount + ' subscribers and unsubscribe them');

    suite.add('knockout', function() {
        var subscriptions = [];
        
        for (var i = 0; i < subscribersCount; i++) {
            subscriptions.push(kocomputed.subscribe(_noop()));
        }
        
        for (var j = 1; j < subscribersCount; j++) {
            subscriptions[j].dispose();
        }
        
        subscriptions[0].dispose();
    });

    suite.add('itDepends', function() {
        var subscriptions = [];
        
        for (var i = 0; i < subscribersCount; i++) {
            subscriptions.push(idcomputed.onChange(_noop()));
        }
        
        for (var j = 1; j < subscribersCount; j++) {
            subscriptions[j].disable();
        }
        
        subscriptions[0].disable();
    });

    return suite;
};