riichi/test/riichi_tests.erl

128 lines
4.4 KiB
Erlang

-module(riichi_tests).
-include("../include/riichi.hrl").
-include_lib("eunit/include/eunit.hrl").
valid_tile_dragon_test_() ->
[?_assert(riichi:is_valid_tile(#tile{suit=dragon, value=Value})) || Value <- [white, green, red]].
valid_tile_wind_test_() ->
[?_assert(riichi:is_valid_tile(#tile{suit=wind, value=Value})) || Value <- [east, south, west, north]].
valid_tile_suit_test_() ->
[?_assert(riichi:is_valid_tile(#tile{suit=Suit, value=Value})) || Suit <- [pin, sou, man], Value <- lists:seq(1,9)].
invalid_tile_test_() ->
[?_assertNot(riichi:is_valid_tile(Tile))
|| Tile <-
[
#tile{suit=badsuit, value=1},
#tile{suit=dragon, value=hidden},
#tile{suit=wind, value=broken},
#tile{suit=pin, value=0},
#tile{suit=sou, value=-1},
#tile{suit=man, value=10},
not_a_tile
]
].
dora_dragon_test_() ->
[?_assertEqual(riichi:dora(#tile{suit=dragon, value=Indicator}), #tile{suit=dragon, value=Dora})
|| {Indicator, Dora} <-
[
{white, green},
{green, red},
{red, white}
]
].
dora_wind_test_() ->
[?_assertEqual(riichi:dora(#tile{suit=wind, value=Indicator}), #tile{suit=wind, value=Dora})
|| {Indicator, Dora} <-
[
{east, south},
{south, west},
{west, north},
{north, east}
]
].
dora_suit_test_() ->
[?_assertEqual(riichi:dora(#tile{suit=Suit, value=Indicator}), #tile{suit=Suit, value=Dora})
||
{Indicator, Dora} <-
[{1,2}, {2,3}, {3,4}, {4,5}, {5,6}, {6,7}, {7,8}, {8,9}, {9,1}],
Suit <- [pin, sou, man]
].
dora_invalid_test() ->
?assertException(throw, {error, invalid_tile}, riichi:dora(#tile{suit=pin, value=9001})).
nearest_test_() ->
[?_assertEqual(riichi:nearest(Val, 10), 80) || Val <- lists:seq(71,80)].
score_yaku_limit_test_() ->
[?_assertEqual(riichi:score(30, Han, true), Score)
|| {Han, Score} <-
[
{ 5, 2000},
{ 6, 3000},
{ 7, 3000},
{ 8, 4000},
{ 9, 4000},
{10, 4000},
{11, 6000},
{12, 6000},
{13, 8000},
{14, 8000},
{1000, 8000}
]
].
score_fu_limit_test() ->
?assertEqual(riichi:score(80, 4, true), 2000).
score_rounded_test() ->
?assertEqual(riichi:score(20, 1, true), 200). % 160 rounded up
score_hand_dai_san_gan_test() ->
Hand = #hand{
tiles = lists:flatten([
lists:duplicate(3, #tile{suit=dragon, value=red}),
lists:duplicate(3, #tile{suit=dragon, value=white}),
lists:duplicate(3, #tile{suit=dragon, value=green}),
lists:duplicate(3, #tile{suit=wind, value=east}),
[#tile{suit=pin, value=V} || V <- [5,6,7]],
lists:duplicate(2, #tile{suit=wind, value=north})])
},
?assertEqual(riichi:score_hand(Hand, 30), 8000).
score_hand_suu_an_kou_test() ->
Hand = #hand{
tiles = lists:flatten([
lists:duplicate(3, #tile{suit=pin, value=1}),
lists:duplicate(3, #tile{suit=pin, value=4}),
lists:duplicate(3, #tile{suit=sou, value=2}),
lists:duplicate(3, #tile{suit=man, value=8}),
lists:duplicate(2, #tile{suit=wind, value=north})])
},
?assertEqual(riichi:score_hand(Hand, 30), 8000).
score_hand_kokushi_musou_test() ->
Hand = #hand{
tiles = lists:flatten([
[#tile{suit=S, value=V} || S <- [pin, sou, man], V <- [1,9]], % Terminals
[#tile{suit=wind, value=V} || V <- [east, south, west, north]], % Winds
[#tile{suit=dragon, value=V} || V <- [red, white, green]], % Dragons
[#tile{suit=pin, value=1}]])
},
?assertEqual(riichi:score_hand(Hand, 30), 8000).
score_hand_ryuu_ii_sou_test() ->
Hand = #hand{
tiles = lists:flatten([
[#tile{suit=sou, value=V} || V <- [2,3,4]],
[#tile{suit=sou, value=V} || V <- [2,3,4]],
lists:duplicate(3, #tile{suit=sou, value=6}),
lists:duplicate(3, #tile{suit=sou, value=8}),
lists:duplicate(2, #tile{suit=dragon, value=green})])
},
?assertEqual(riichi:score_hand(Hand, 30), 8000).