.net – 如何在仅更改依赖项的同时运行相同的testmethods？

脚步：

>使用定义抽象基类
其中的所有测试
>投入
抽象方法叫
返回的CreateStorageManager()
一个IStorageManager(或其他什么
接口这两个依赖项
实行)
>将夹具子类化两次
并提供一个实现
CreateStorageManager()返回您希望用于运行测试的具体类型.

这是等效NUnit版本的代码;我相信你可以推断出来.注意：MSTest的继承规则可能与我以前的略有不同.如果它不起作用,您可以尝试将基类标记为测试夹具.

public abstract class PasswordManagerFixtureBase
{
     protected abstract IStorageManager CreateStorageManager();

     // all tests go in this fixture
     [Test]
     public void SomeTestOrOther()
     { 
         var passwordManager = CreatePasswordManager();

         // do test logic

     }

     private PasswordManager CreatePasswordManager()
     { 
          // calls into subclass implementation to get instance of storage
          IStorageManager storage = CreateStorageManager();
          return new PasswordManager(storage);
     }   
}

// Runs the tests in the fixture base using XmlStorageManager
[TestFixture]
public class PasswordManager_XMLStorageManagerImplTests
{
      protected override IStorageManager CreateStorageManager()
      {
          return new XMLStorageManager();
      }
}

// Runs the tests in the fixture base using DbStorageManager
[TestFixture]
public class PasswordManager_DbStorageManagerImplTests
{
      protected override IStorageManager CreateStorageManager()
      {
          return new DbStorageManager();
      }
}

使用MSTest可能有更优雅的方法,但这应该有效.