MOQ - 建立了一種基於

Question

我有一個接口定義爲

interface IMath 
{ 
AddNumbersBetween(int lowerVal, int upperVal); 
} 

我可以設置一個基本起訂量爲上述如下參數值（多個參數）：

Mock<IMath> mock = new Mock<IMath>();  
mock.Setup(m => m.AddNumbersBetween(It.IsAny<int>(), It.IsAny<int>())); 

呼叫它

mock.Object.AddNumbersBetween(1,4); 

，然後驗證它被稱爲

mock.Verify(m => m.AddNumbersBetween(1,4), Times.AtleastOnce()); 

我無法弄清楚如何設置方法AddNumbersBetween這樣，如果upperVal是低於lowerVal拋出一個異常

mock.Object.AddNumbersBetween(4,1);//should throw an exception 

本質上尋找類似：

mock.Setup(foo => foo.AddNumbersBetween("arg1 is higher than arg2")).Throws<ArgumentException>(); 

Answer 1

我知道這是一歲，但我發現了一種利用與起訂量的最新版本的多個參數至少：

mock.Setup(x => x.Method(It.IsAny<int>(), It.IsAny<int>()) 
    .Returns<int, int>((a, b) => a < b); 

Answer 2

對於最簡潔的方法是：

mock.Setup(foo => foo.Submit(IsLarge())).Throws<ArgumentException>(); 
... 
public string IsLarge() 
{ 
    return Match<string>.Create(s => !String.IsNullOrEmpty(s) && s.Length > 100); 
} 

如果該方法有多個參數，則不能應用該方法。還有可能被使用的「處理方法」，模仿要達到什麼：

/// <summary> 
/// Tests if a moq can send an exception with argument checking 
///</summary> 
[TestMethod] 
public void TestException() 
{ 
    Mock<IMath> mock = new Mock<IMath>(); 
    mock.Setup(m => m.AddNumbersBetween(It.IsAny<int>(), It.IsAny<int>())); 

    mock.Setup(foo => foo.AddNumbersBetween(It.IsAny<int>(), It.IsAny<int>())) 
     .Callback<int, int>((i, j) => CheckArgs(i, j)); 

    try 
    { 
     mock.Object.AddNumbersBetween(1, 2); 
    } 
    catch (Exception ex) 
    { 
     // Will not enter 
     Console.WriteLine("Exception raised: {0}", ex); 
    } 
    try 
    { 
     mock.Object.AddNumbersBetween(2, 1); 
    } 
    catch (Exception ex) 
    { 
     // Will enter here, exception raised 
     Console.WriteLine("Exception raised: {0}", ex); 
    } 
} 

private bool CheckArgs(int i, int j) 
{ 
    if(i > j) 
     throw new ArgumentException(); 
    return true; 
}