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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2006-2010. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+-module(andor_SUITE).
+
+-export([all/1,init_per_testcase/2,fin_per_testcase/2,init_all/1,finish_all/1,
+ t_andalso/1,t_orelse/1,inside/1,overlap/1,
+ combined/1,in_case/1]).
+
+-include("test_server.hrl").
+
+all(suite) ->
+ [{conf,init_all,cases(),finish_all}].
+
+init_per_testcase(_Case, Config) ->
+ test_lib:interpret(?MODULE),
+ ?line Dog = test_server:timetrap(?t:minutes(1)),
+ [{watchdog,Dog}|Config].
+
+fin_per_testcase(_Case, Config) ->
+ Dog = ?config(watchdog, Config),
+ ?t:timetrap_cancel(Dog),
+ ok.
+
+init_all(Config) when is_list(Config) ->
+ ?line test_lib:interpret(?MODULE),
+ ?line true = lists:member(?MODULE, int:interpreted()),
+ ok.
+
+finish_all(Config) when is_list(Config) ->
+ ok.
+
+cases() ->
+ [t_andalso,t_orelse,inside,overlap,combined,in_case].
+
+t_andalso(Config) when is_list(Config) ->
+ Bs = [true,false],
+ Ps = [{X,Y} || X <- Bs, Y <- Bs],
+ lists:foreach(fun (P) -> t_andalso_1(P) end, Ps),
+
+ ?line true = true andalso true,
+ ?line false = true andalso false,
+ ?line false = false andalso true,
+ ?line false = false andalso false,
+
+ ?line false = false andalso glurf,
+ ?line false = false andalso exit(exit_now),
+
+ ?line true = not id(false) andalso not id(false),
+ ?line false = not id(false) andalso not id(true),
+ ?line false = not id(true) andalso not id(false),
+ ?line false = not id(true) andalso not id(true),
+
+ ?line {'EXIT',{badarg,_}} = (catch not id(glurf) andalso id(true)),
+ ?line {'EXIT',{badarg,_}} = (catch not id(false) andalso not id(glurf)),
+ ?line false = id(false) andalso not id(glurf),
+ ?line false = false andalso not id(glurf),
+
+ ok.
+
+t_orelse(Config) when is_list(Config) ->
+ Bs = [true,false],
+ Ps = [{X,Y} || X <- Bs, Y <- Bs],
+ lists:foreach(fun (P) -> t_orelse_1(P) end, Ps),
+
+ ?line true = true orelse true,
+ ?line true = true orelse false,
+ ?line true = false orelse true,
+ ?line false = false orelse false,
+
+ ?line true = true orelse glurf,
+ ?line true = true orelse exit(exit_now),
+
+ ?line true = not id(false) orelse not id(false),
+ ?line true = not id(false) orelse not id(true),
+ ?line true = not id(true) orelse not id(false),
+ ?line false = not id(true) orelse not id(true),
+
+ ?line {'EXIT',{badarg,_}} = (catch not id(glurf) orelse id(true)),
+ ?line {'EXIT',{badarg,_}} = (catch not id(true) orelse not id(glurf)),
+ ?line true = id(true) orelse not id(glurf),
+ ?line true = true orelse not id(glurf),
+
+ ok.
+
+t_andalso_1({X,Y}) ->
+ io:fwrite("~w andalso ~w: ",[X,Y]),
+ V1 = echo(X) andalso echo(Y),
+ V1 = if
+ X andalso Y -> true;
+ true -> false
+ end,
+ check(V1, X and Y).
+
+t_orelse_1({X,Y}) ->
+ io:fwrite("~w orelse ~w: ",[X,Y]),
+ V1 = echo(X) orelse echo(Y),
+ V1 = if
+ X orelse Y -> true;
+ true -> false
+ end,
+ check(V1, X or Y).
+
+inside(Config) when is_list(Config) ->
+ ?line true = inside(-8, 1),
+ ?line false = inside(-53.5, -879798),
+ ?line false = inside(1.0, -879),
+ ?line false = inside(59, -879),
+ ?line false = inside(-11, 1.0),
+ ?line false = inside(100, 0.2),
+ ?line false = inside(100, 1.2),
+ ?line false = inside(-53.5, 4),
+ ?line false = inside(1.0, 5.3),
+ ?line false = inside(59, 879),
+ ok.
+
+inside(Xm, Ym) ->
+ X = -10.0,
+ Y = -2.0,
+ W = 20.0,
+ H = 4.0,
+ Res = inside(Xm, Ym, X, Y, W, H),
+ Res = if
+ X =< Xm andalso Xm < X+W andalso Y =< Ym andalso Ym < Y+H -> true;
+ true -> false
+ end,
+ case not id(Res) of
+ Outside ->
+ Outside = if
+ not(X =< Xm andalso Xm < X+W andalso Y =< Ym andalso Ym < Y+H) -> true;
+ true -> false
+ end
+ end,
+ {Res,Xm,Ym,X,Y,W,H} = inside_guard(Xm, Ym, X, Y, W, H),
+ io:format("~p =< ~p andalso ~p < ~p andalso ~p =< ~p andalso ~p < ~p ==> ~p",
+ [X,Xm,Xm,X+W,Y,Ym,Ym,Y+H,Res]),
+ Res.
+
+inside(Xm, Ym, X, Y, W, H) ->
+ X =< Xm andalso Xm < X+W andalso Y =< Ym andalso Ym < Y+H.
+
+inside_guard(Xm, Ym, X, Y, W, H) when X =< Xm andalso Xm < X+W
+ andalso Y =< Ym andalso Ym < Y+H ->
+ {true,Xm,Ym,X,Y,W,H};
+inside_guard(Xm, Ym, X, Y, W, H) ->
+ {false,Xm,Ym,X,Y,W,H}.
+
+overlap(Config) when is_list(Config) ->
+ ?line true = overlap(7.0, 2.0, 8.0, 0.5),
+ ?line true = overlap(7.0, 2.0, 8.0, 2.5),
+ ?line true = overlap(7.0, 2.0, 5.3, 2),
+ ?line true = overlap(7.0, 2.0, 0.0, 100.0),
+
+ ?line false = overlap(-1, 2, -35, 0.5),
+ ?line false = overlap(-1, 2, 777, 0.5),
+ ?line false = overlap(-1, 2, 2, 10),
+ ?line false = overlap(2, 10, 12, 55.3),
+ ok.
+
+overlap(Pos1, Len1, Pos2, Len2) ->
+ Res = case Pos1 of
+ Pos1 when (Pos2 =< Pos1 andalso Pos1 < Pos2+Len2)
+ orelse (Pos1 =< Pos2 andalso Pos2 < Pos1+Len1) ->
+ true;
+ Pos1 -> false
+ end,
+ Res = (Pos2 =< Pos1 andalso Pos1 < Pos2+Len2)
+ orelse (Pos1 =< Pos2 andalso Pos2 < Pos1+Len1),
+ Res = case Pos1 of
+ Pos1 when (Pos2 =< Pos1 andalso Pos1 < Pos2+Len2)
+ orelse (Pos1 =< Pos2 andalso Pos2 < Pos1+Len1) ->
+ true;
+ Pos1 -> false
+ end,
+ id(Res).
+
+
+-define(COMB(A,B,C), (A andalso B orelse C)).
+
+combined(Config) when is_list(Config) ->
+ ?line false = comb(false, false, false),
+ ?line true = comb(false, false, true),
+ ?line false = comb(false, true, false),
+ ?line true = comb(false, true, true),
+
+ ?line false = comb(true, false, false),
+ ?line true = comb(true, true, false),
+ ?line true = comb(true, false, true),
+ ?line true = comb(true, true, true),
+
+ ?line false = comb(false, blurf, false),
+ ?line true = comb(false, blurf, true),
+ ?line true = comb(true, true, blurf),
+
+ ?line false = ?COMB(false, false, false),
+ ?line true = ?COMB(false, false, true),
+ ?line false = ?COMB(false, true, false),
+ ?line true = ?COMB(false, true, true),
+
+ ?line false = ?COMB(true, false, false),
+ ?line true = ?COMB(true, true, false),
+ ?line true = ?COMB(true, false, true),
+ ?line true = ?COMB(true, true, true),
+
+ ?line false = ?COMB(false, blurf, false),
+ ?line true = ?COMB(false, blurf, true),
+ ?line true = ?COMB(true, true, blurf),
+
+ ok.
+-undef(COMB).
+
+comb(A, B, C) ->
+ Res = A andalso B orelse C,
+ Res = if
+ A andalso B orelse C -> true;
+ true -> false
+ end,
+ NotRes = if
+ not(A andalso B orelse C) -> true;
+ true -> false
+ end,
+ NotRes = id(not Res),
+ Res = A andalso B orelse C,
+ Res = if
+ A andalso B orelse C -> true;
+ true -> false
+ end,
+ NotRes = id(not Res),
+ Res = if
+ A andalso B orelse C -> true;
+ true -> false
+ end,
+ id(Res).
+
+%% Test that a boolean expression in a case expression is properly
+%% optimized (in particular, that the error behaviour is correct).
+in_case(Config) when is_list(Config) ->
+ ?line edge_rings = in_case_1(1, 1, 1, 1, 1),
+ ?line not_loop = in_case_1(0.5, 1, 1, 1, 1),
+ ?line loop = in_case_1(0.5, 0.9, 1.1, 1, 4),
+ ?line {'EXIT',{badarith,_}} = (catch in_case_1(1, 1, 1, 1, 0)),
+ ?line {'EXIT',{badarith,_}} = (catch in_case_1(1, 1, 1, 1, nan)),
+ ?line {'EXIT',{badarg,_}} = (catch in_case_1(1, 1, 1, blurf, 1)),
+ ?line {'EXIT',{badarith,_}} = (catch in_case_1([nan], 1, 1, 1, 1)),
+ ok.
+
+in_case_1(LenUp, LenDw, LenN, Rotation, Count) ->
+ Res = in_case_1_body(LenUp, LenDw, LenN, Rotation, Count),
+ Res = in_case_1_guard(LenUp, LenDw, LenN, Rotation, Count),
+ Res.
+
+in_case_1_body(LenUp, LenDw, LenN, Rotation, Count) ->
+ case (LenUp/Count > 0.707) and (LenN/Count > 0.707) and
+ (abs(Rotation) > 0.707) of
+ true ->
+ edge_rings;
+ false ->
+ case (LenUp >= 1) or (LenDw >= 1) or
+ (LenN =< 1) or (Count < 4) of
+ true ->
+ not_loop;
+ false ->
+ loop
+ end
+ end.
+
+in_case_1_guard(LenUp, LenDw, LenN, Rotation, Count) ->
+ case (LenUp/Count > 0.707) andalso (LenN/Count > 0.707) andalso
+ (abs(Rotation) > 0.707) of
+ true -> edge_rings;
+ false when LenUp >= 1 orelse LenDw >= 1 orelse
+ LenN =< 1 orelse Count < 4 -> not_loop;
+ false -> loop
+ end.
+
+check(V1, V0) ->
+ if V1 /= V0 ->
+ io:fwrite("error: ~w.\n", [V1]),
+ ?t:fail();
+ true ->
+ io:fwrite("ok: ~w.\n", [V1])
+ end.
+
+echo(X) ->
+ io:fwrite("eval(~w); ",[X]),
+ X.
+
+id(I) -> I.
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