public void ByRefUserDefinedType(UdtClass value1, UdtClass value2, ComparisonResult expectedResult)
{
//Arrange.
PersonByRefUdt p1 = ModelsHelper.CreatePersonByRefUdt();
p1.ByRefProperty = value1;
PersonByRefUdt p2 = ModelsHelper.CreatePersonByRefUdt();
p2.ByRefProperty = value2;
ObjectComparer comparer = ObjectComparer.Create <PersonByRefUdt>();
//Act.
var result = comparer.Compare(p1, p2, out bool isDifferent);
//Assert.
isDifferent.Should().Be((expectedResult & ComparisonResult.NotEqual) == ComparisonResult.NotEqual);
result[nameof(PersonByRefUdt.ByRefProperty)].Result.Should().Be(expectedResult);
}