使用嵌套測試類時如何對構造函數進行單元測試

Question

假設我在類構造函數中有一些邏輯要進行單元測試，如果我對每個方法使用xUnit.net和嵌套測試類，我將如何構造它？

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

您已經在技術上通過IsCorrect（）測試對其進行了測試，但是如果您需要顯式測試：

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()...
    }
}