51:24ba56a575b1
Anton Shestakov <engored@ya.ru>, Sat, 08 Mar 2014 23:37:19 +0900
rps_rules:why/3, use it in rps3 and rps5.
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test/rps5_tests.erl

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-module(rps5_tests).
-include_lib("eunit/include/eunit.hrl").
get_hands_test() ->
    ?assertEqual(5, length(rps5:get_hands())).
winning_hand_test() ->
    ?assertEqual(paper,     rps5:winning_hand([rock, paper])),
    ?assertEqual(scissors,  rps5:winning_hand([paper, scissors])),
    ?assertEqual(rock,      rps5:winning_hand([scissors, rock])),
    ?assertEqual(rock,      rps5:winning_hand([rock, rock, rock])),
    ?assertEqual(undefined, rps5:winning_hand([rock, paper, scissors])),
    ?assertEqual(paper,     rps5:winning_hand([rock, paper, paper])),
    ?assertEqual(paper,     rps5:winning_hand([rock, rock, paper])).