public void IgnoreForComparisonAttributeIgnoreForSelf()
{
//Arrange.
PersonExWithIgnoreForSelf p1 = ModelsHelper.CreatePersonExWithIgnoreForSelf();
PersonExWithIgnoreForSelf p2 = ModelsHelper.CreatePersonExWithIgnoreForSelf();
ObjectComparer comparer = ObjectComparer.Create <PersonExWithIgnoreForSelf>();
//Act.
var result = comparer.Compare(p1, p2, out bool _);
//Assert.
result.Should().NotBeNull();
PropertyComparisonResult propertyResult = result[nameof(PersonExWithIgnoreForSelf.NickName)];
propertyResult.Should().NotBeNull();
propertyResult.Result.Should().Be(ComparisonResult.PropertyIgnored);
}