moq-基于参数值(多个参数)设置方法

我知道这是一年前的事了,但我找到了一种方法,至少在最新版本的MOQ中使用多个参数:

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

对于单参数方法,最干净的方法是:

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

如果方法有多个参数,则无法应用此方法。还有一个“解决方案”可以使用,它模拟您想要实现的目标:

/// <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;
}