Protected vaginal or anal intercourse doesn't need HIV testing. Oral sex protected or Unprotected is not risk for HIV transmission.
You didn't need to test.
Since you had protected sex and only the head has to be covered, so you were safe whether you were sloppy drunk or not as you know you had a condom on then you also know you had no risk for HIV. Your tests -- any tests would be negative with no risk. UK is an excellent country with advanced healthcare. There testing is good and you question like it wouldn't be. It is. And in your particular case, you did not need to test at all.