What steps will reproduce the problem? 1. Create a project with the following in it:

public class Class1
{
    private ITest _Class2;
    public Class1(ITest class2)
    {
        _Class2 = class2;
    }

    public void DoSomething()
    {
        var skus = "000456";
        var favId = 123;
        _Class2.ExecuteNonQuery("fav_AddFavorites", new { fid = favId, inputStr = skus });
    }
}

public interface ITest
{
    int ExecuteNonQuery(string query, object param = null);
}

2. Create a second project that references the first project and has the following test:

[TestFixture]
public class MyClass
{
    [Test]
    public void ExecuteNonQueryTest()
    {
        var repository = new Mock<ITest>();

        Class1 target = new Class1(repository.Object);
        target.DoSomething();
        repository.Verify(x => x.ExecuteNonQuery("fav_AddFavorites", It.Is<object>(o => o.Equals(new { fid = 123, inputStr = "000456" }))), Times.Once());
    }
}

3.

What is the expected output? What do you see instead? I would expect the test to pass, but it does not. If the test and the code are in the same project the test passes without a problem.

What version of the product are you using? On what operating system?

I am running Moq 4.0.20926 with NUnit 2.0.50727 in a .Net 4.0 application

Please provide any additional information below.