传递内存流&字符串构建器作为C＃类的参数 [英] Pass Memory stream & string builder as parameters to C# class

问题描述

改述我的问题：



当前课程：



    public someclass（s​​tream Stream，stringbuilder builder）  

    {

        stream = new stream; 

        builder = new StringBuilder（）; 

    } b


所以它不可模仿且可单元测试。我希望实现的是通过流和& stringbuilder作为此类的依赖项，以便构造函数看起来像这样： 
$


    public someclass（IStreamProvider streamprovider，IStringbuilderProvider builderProvider）  

    {

        stream = streamProvider.GetStream（）; 

        builder = builderprovider.GetBuilder（）; 

    } b


稍后我可以模拟IStreamProvider和IStringbuilderProvider并设置相同的Get方法。



是这种方法对吗？有什么建议 ？

Rephrasing my question :

current class :

    public someclass(stream Stream, stringbuilder builder)  
    {
       stream = new stream; 
       builder = new StringBuilder (); 
    }

So it is not mockable and unit testable. What i wish to achieve is that pass both stream & stringbuilder as dependencies to this class so that the constructor looks something like this : 

    public someclass(IStreamProvider streamprovider, IStringbuilderProvider builderProvider)  
    {
       stream = streamProvider.GetStream(); 
       builder = builderprovider.GetBuilder(); 
    }

Later on I can mock IStreamProvider and IStringbuilderProvider and setup Get methods on the same.

Is this approach correct ? Any suggestions ?

推荐答案

你可以尝试这个方法：

You may try this method:

using System;
using System.Text;

class Program
{
 static void Main()
 {
 string[] items = { "Cat", "Dog", "Celebrity" };

 StringBuilderbuilder2 = new StringBuilder(
 "These items are required:").AppendLine();

 foreach(string item in items)
 {
 builder2.Append(item).AppendLine();
 }
 Console.WriteLine(builder2.ToString());
 Console.ReadLine();
 }
}

Output

These items are required:
Cat
Dog
Celebrity

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