Using Expression<T> with data theories for better output display in xUnit.net

gistfile1.cs

public static IEnumerable<object[]> ExpirationMethods
{
    get
    {
        return new TheoryDataSet<Expression<Action<Cache>>>
        {
            cache => cache.Clock.UtcNow.Returns(BaseTime + cache.Duration),
            cache => cache.Expire()
        };
    }
}

[Theory]
[PropertyData("ExpirationMethods")]
public async void MyTheory(Expression<Action<Cache>> expireMethod)
{
    // ...
}

// Yields:
// Test 'MyClass.MyTheory(expireMethod: cache => cache.Expire())' failed:
//   NSubstitute.Exceptions.ReceivedCallsException : Expected to receive exactly 1 call matching: