#JavaScript Test 基础训练

作为一个Professional程序员，你能接受没有测试的库么?

重构代码最大的挑战是没有测试，当你面对一坨的代码的时候，你会如何下手?

当然是先写测试了~~，先试试写写基本的测试。

这次的Task是对一个类进行测试，测试所需要的覆盖率是100%;

##Augment 简介

augment

The world's smallest and fastest classical JavaScript inheritance pattern, augment, is a seven line function which allows you to write CoffeeScript style classes with a flair of simplicity; and it still beats the bejesus out of other JavaScript inheritance libraries.

官网的wiki上有下面的的一些用法

用法，定义一个类:

var extend = augment.extend;

var Shape = augment(Object, function () {
    this.Circle = extend(this, {
        constructor: function (x, y, r) {
            this.x = x;
            this.y = y;
            this.r = r;
        },
        area: function () {
            return Math.PI * this.r * this.r;
        }
    });

    this.Rectangle = extend(this, {
        constructor: function (x1, y1, x2, y2) {
            this.x1 = x1;
            this.y1 = y1;
            this.x2 = x2;
            this.y2 = y2;
        },
        area: function () {
            return Math.abs((this.x2 - this.x1) * (this.y2 - this.y1));
        }
    });
});

测试用例

var circle = new Shape.Circle(0, 0, 10);
var rectangle = new Shape.Rectangle(0, 0, 8, 6);

alert(Shape.isPrototypeOf(circle));          // true
alert(circle instanceof Shape.Circle);       // true
alert(circle.area());                        // 314.1592653589793

alert(Shape.isPrototypeOf(rectangle));       // true
alert(rectangle instanceof Shape.Rectangle); // true
alert(rectangle.area());                     // 48.0

##Setup

1.Install

npm install

2.Test

npm test

Enjoy it!

##订阅

QQ交流群: 321689806

推荐IDE: WebStorm

请到https://github.com/artisanstack/summary

点击右上角的watch即可订阅。

##License##

© 2015 Phodal Huang. This code is distributed under the MIT license. See LICENSE.txt in this directory.

待我代码编成，娶你为妻可好