You cannot “get tested” for Asperger syndrome. Although some test instruments have been developed, they all rely heavily on the interpretation of the clinician for their validity, mainly because there is ongoing argument about what Asperger’s even is.
The bottom line is this: what would you do with the outcome of the test? Whether it’s negative or positive, what would you do with that information? There is no treatment, as such, for either condition (IMO Asperger’s is incorrectly included in the ‘autism spectrum’ - it is qualitatively different and has no identifiable neurological cause).
If you believe that you have some specific cognitive issues, then your best bet is to simply identify what they are (with help from a friend if necessary) and find workarounds for them.