On top of the below, the tests are pathetically weak: see this and this. It doesn't even check if GivesTo is a person.

The actual test consists of one fixed test case.

This isn't really a kata, this is a puzzle question. It requires the user to find the solution of the given question. It isn't suitable as a kata unless the input is generalized.

like :)

Fun small-scoped kata. It's really is one of those challenges that you run across in practice.

Very tiny improvement: fix the typo in test_it_wont_assign_people_to_who_they_gifts_to_last_year to test_it_wont_assign_people_to_who_they_gave_to_last_year.

Also, there are extra parentheses around the explode.

That's above and beyond :) I think monsters will suffer more damage knowing the codebase behind it :D

Use spoiler flag.

My OOP attempt.

consecutive spaces should be removed previously

No. This is solution doesn't waiting for input consecutive space.
Please excuse me, English isn't my native language.

does it work for consecutive space?

The output could be random... but I will give an example. Thanks!

Hi and welcome;-), what about the output? The description contains some rules, but no word about the expected output (-format)... Perhaps it's visible inside the testcases, but the place for explanation is the description...