[Emulating private methods with closures] JavaScript does not provide a native way of doing this, but it is possible to emulate private methods using closures. Private methods aren't just useful for restricting access to code: they also provide a pow…

/** * Created with JetBrains PhpStorm. * User: scotty * Date: 28/08/2013 * Time: 19:39 */ ;(function(global){ "use strict"; var M = function() { // Constructor. arguments are passed // from Module() call. this refers to m. function init() { meth…

Mock  private methods 就是mock私有方法啦,学到这不难发现,我们其实大部分都是通过反射去完成单元测试的,但是在实际中,某个类中的私有方法,个人不建议使用反射来测试,因为有时候会覆盖单元测试中的方法,那么下面我们就来举个例子,来使用mock来模拟私有方法的测试. 模拟场景 假设我们按照人名去查找一个学生是否存在isExist(),如果存在就返回true,否则false,同时调用这个类中的私有的查找方法返回学生个数,如果存在返回1,不存在返回0 业务逻辑部分代码比较简单,具体…

Despite the common belief it is actually possible to access private fields and methods of other classes via Java Reflection. It is not even that difficult. This can be very handy during unit testing. This text will show you how. Note: This only works…

Private Members in JavaScript Douglas Crockford www.crockford.com JavaScript is the world's most misunderstood programming language. Some believe that it lacks the property of information hiding because objects cannot have private instance variables…

Like the old Albert Einstein said: If you can't explain it to a six-year-old, you really don't understand it yourself. Well, I tried to explain JavaScript closures to a 27-year-old friend and completely failed. How would you explain it to someone wit…

Douglas Crockford classified the "class methods" in JavaScript into three types: private, privileged and public. Public methods have an obvious meaning: they can be accessed by the public. Private methods' meaning are also clear: they cannot be…

   Kinds of methods        Constructors      Type constructors      Overload operators      Type conversions (for implicit and explicit casting)      Extension methods      Partial methods.              1. Instance Constructors and Classes (Reference…

If you want to unit test a private method, something may be wrong. Unit tests are (generally speaking) meant to test the interface of a class, meaning its public (and protected) methods. You can of course "hack" a solution to this (even if just…

4.Operator Overload Methods allow a type to define how operators should manipulate instances of the type. 1.The CLR doesn’t know anything about operator overloading because it doesn’t even know what an operator is. programming language defines what e…