How to use Moq to return a List of data or values?

Question

Can anyone tell me how to return List of data using mock object using Moq framework and assigning the so returned list of data to another List<> variable.??

Answer 1

public class SomeClass
{
    public virtual List<int> GimmeSomeData()
    {
        throw new NotImplementedException(); 
    }
}

[TestClass]
public class TestSomeClass
{
    [TestMethod]
    public void HowToMockAList()
    {
        var mock = new Mock<SomeClass>();
        mock.Setup(m => m.GimmeSomeData()).Returns(() => new List<int> {1, 2, 3});
        var resultList = mock.Object.GimmeSomeData();
        CollectionAssert.AreEquivalent(new List<int>{1,2,3},resultList);
    }
}

Answer 2

@Richard Banks gave the correct answer. For completeness, if you want to use Moq v4 functional specifications and get rid of the .Object:

void Main()
{
    var list = new List<int> { 1, 2, 3 };

    ISomeInterface implementation =
        Mock.Of<ISomeInterface>(si => si.GimmeSomeData() == list);

    List<int> resultList = implementation.GimmeSomeData();

    foreach (int i in resultList)
    {
        Console.WriteLine(i);
    }
}

public interface ISomeInterface
{
    List<int> GimmeSomeData();
}