如何在使用嵌套测试类时对单元测试构造函数进行单元测试

Question

假设我在要构造单元测试的类构造函数中有一些逻辑，如果我使用xUnit.net和每种方法的嵌套测试类？

using Xunit; 

public class MyClass 
{ 
    public MyClass() 
    { 
     // Some logic to test 
    } 

    public int GetResult() 
    { 
     return 123; 
    } 
} 

public class MyClassFacts 
{ 
    // How to test MyClass constructor? 

    // Nested classes to test each of MyClass' methods 
    public class GetResult 
    { 
     [Fact] 
     public void IsCorrect() 
     { 
      var myClass = new MyClass(); 
      int result = myClass.GetResult(); 
      Assert.Equal(123, result); 
     } 

     // Other tests for MyClass.GetResult()... 
    } 
} 

Answer 1

你已经在你的IsCorrect（）测试来测试它在技术上，但如果你想要一个明确的测试：

using Xunit; 

public class MyClass 
{ 
    public MyClass() 
    { 
     // Some logic to test 
    } 

    public int GetResult() 
    { 
     return 123; 
    } 
} 

public class MyClassFacts 
{ 
    [Fact] 
    public void Ctor() 
    { 
     var myClass = new MyClass(); 
     Assert.NotNull(myClass); 
     // Any other asserts you require 
    } 

    // Nested classes to test each of MyClass' methods 
    public class GetResult 
    { 
     [Fact] 
     public void IsCorrect() 
     { 
      var myClass = new MyClass(); 
      int result = myClass.GetResult(); 
      Assert.Equal(123, result); 
     } 

     // Other tests for MyClass.GetResult()... 
    } 
}