problems with Interface implementation

[isaacbromberg]

bellow doesnt work(test fails) but it shuld imho.
`
using NUnit.Framework;
using Value;

namespace ValueObjectTests
{
[TestFixture]
public class ValueObjectTests
{
[Test]
public void EqualityTests()
{
IMyValueObject a = new MyValueObject();
IMyValueObject b = new MyValueObject();

        var actual = a == b;
        var expected = true;

        Assert.AreEqual(expected, actual);
    }
}

public interface IMyValueObject
{
    string Val { get; }
}

public class MyValueObject : ValueObject, IMyValueObject
{
    public string Val { get; } = "xxx";
}

}`

[isaacbromberg]

I Found Its problem with .NET not Value Object. Used abstract class instead of interface