weak-dictionary/test/unit.js

Universal ES6-compatible WeakMap wrapper

var assert = require('assert'),
    should = require('should'),
    sinon = require('sinon'),
    WeaKDictionary = require('../src/index');

describe('Unit', function() {
    describe('weak-dictionary', function() {
        describe('construct', function() {
            it("standard success", function() {
                // arrange/act
                var instance = new WeaKDictionary();

                // assertact
                should.exist(instance);
            });
        });

        describe('no leaks', function() {
            it("force delete", function() {
                // arrange
                var instance = new WeaKDictionary();

                // act
                var hashKey = {
                    key: "myItem"
                };
                var Clazz = function() {
                    this.items = [];
                    for (var i = 0; i <= 100; i++)
                        this.items.push(1);
                };
                var hashObj = new Clazz();
                instance.set(hashKey, hashObj);
                instance.delete(hashKey);

                // assert
                instance.has(hashKey).should.equal(false);
            });

            it("gc delete", function() {
                // arrange
                var instance = new WeaKDictionary();

                // act
                var hashKey = {
                    key: "myItem"
                };
                var Clazz = function() {
                    this.items = [];
                    for (var i = 0; i <= 100000; i++)
                        this.items.push(i);
                };
                var hashObj = new Clazz();
                instance.set(hashKey, hashObj);

                delete hashObj;
                hashObj = null;

                global.gc();
                instance.refresh();

                // assertact
                instance.has(hashKey).should.equal(false);
            });
        });
    });
});