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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1999-2010. 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(exception_SUITE).
+
+-export([all/1,init_per_testcase/2,fin_per_testcase/2,init_all/1,finish_all/1,
+ badmatch/1,pending_errors/1,nil_arith/1]).
+
+-export([bad_guy/2]).
+
+-include("test_server.hrl").
+
+all(suite) ->
+ [{conf,init_all,cases(),finish_all}].
+
+cases() ->
+ [badmatch, pending_errors, nil_arith].
+
+-define(try_match(E),
+ catch ?MODULE:bar(),
+ {'EXIT', {{badmatch, nomatch}, _}} = (catch E = nomatch)).
+
+init_per_testcase(_Case, Config) ->
+ test_lib:interpret(?MODULE),
+ 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.
+
+badmatch(doc) -> "Test that deliberately bad matches are reported correctly.";
+badmatch(suite) -> [];
+badmatch(Config) when list(Config) ->
+ ?line ?try_match(a),
+ ?line ?try_match(42),
+ ?line ?try_match({a, b, c}),
+ ?line ?try_match([]),
+ ?line ?try_match(1.0),
+ ok.
+
+pending_errors(doc) ->
+ ["Test various exceptions, in the presence of a previous error suppressed ",
+ "in a guard."];
+pending_errors(suite) -> [];
+pending_errors(Config) when list(Config) ->
+ ?line pending(e_badmatch, {badmatch, b}),
+ ?line pending(x, function_clause),
+ ?line pending(e_case, {case_clause, xxx}),
+ ?line pending(e_if, if_clause),
+ ?line pending(e_badarith, badarith),
+ ?line pending(e_undef, undef),
+ ?line pending(e_timeoutval, timeout_value),
+ ?line pending(e_badarg, badarg),
+ ?line pending(e_badarg_spawn, badarg),
+ ok.
+
+bad_guy(pe_badarith, Other) when Other+1 == 0 -> % badarith (suppressed)
+ ok;
+bad_guy(pe_badarg, Other) when length(Other) > 0 -> % badarg (suppressed)
+ ok;
+bad_guy(_, e_case) ->
+ case xxx of
+ ok -> ok
+ end; % case_clause
+bad_guy(_, e_if) ->
+ if
+ a == b -> ok
+ end; % if_clause
+bad_guy(_, e_badarith) ->
+ 1+b; % badarith
+bad_guy(_, e_undef) ->
+ non_existing_module:foo(); % undef
+bad_guy(_, e_timeoutval) ->
+ receive
+ after arne -> % timeout_value
+ ok
+ end;
+bad_guy(_, e_badarg) ->
+ node(xxx); % badarg
+bad_guy(_, e_badarg_spawn) ->
+ spawn({}, {}, {}); % badarg
+bad_guy(_, e_badmatch) ->
+ a = b. % badmatch
+
+pending(Arg, Expected) ->
+ pending(pe_badarith, Arg, Expected),
+ pending(pe_badarg, Arg, Expected).
+
+pending(First, Second, Expected) ->
+ pending_catched(First, Second, Expected),
+ pending_exit_message([First, Second], Expected).
+
+pending_catched(First, Second, Expected) ->
+ ok = io:format("Catching bad_guy(~p, ~p)", [First, Second]),
+ case catch bad_guy(First, Second) of
+ {'EXIT', Reason} ->
+ pending(Reason, bad_guy, [First, Second], Expected);
+ Other ->
+ test_server:fail({not_exit, Other})
+ end.
+
+pending_exit_message(Args, Expected) ->
+ ok = io:format("Trapping EXITs from spawn_link(~p, ~p, ~p)",
+ [?MODULE, bad_guy, Args]),
+ process_flag(trap_exit, true),
+ Pid = spawn_link(?MODULE, bad_guy, Args),
+ receive
+ {'EXIT', Pid, Reason} ->
+ pending(Reason, bad_guy, Args, Expected);
+ Other ->
+ test_server:fail({unexpected_message, Other})
+ after 10000 ->
+ test_server:fail(timeout)
+ end,
+ process_flag(trap_exit, false).
+
+pending({badarg,[{erlang,Bif,BifArgs},{?MODULE,Func,Arity}|_]}, Func, Args, _Code)
+ when atom(Bif), list(BifArgs), length(Args) == Arity -> %Threaded code.
+ ok;
+pending({badarg,[{erlang,Bif,BifArgs},{?MODULE,Func,Args}|_]}, Func, Args, _Code)
+ when atom(Bif), list(BifArgs) -> %From interpreted code.
+ ok;
+pending({undef,[{non_existing_module,foo,[]}|_]}, _, _, _) ->
+ ok;
+pending({function_clause,[{?MODULE,Func,Args}|_]}, Func, Args, _Code) ->
+ ok;
+pending({Code,[{?MODULE,Func,Arity}|_]}, Func, Args, Code) when length(Args) == Arity -> %Threaded code
+ ok;
+pending({Code,[{?MODULE,Func,Args}|_]}, Func, Args, Code) -> %From interpreted code.
+ ok;
+pending(Reason, Func, Args, Code) ->
+ test_server:fail({bad_exit_reason,Reason,{Func,Args,Code}}).
+
+nil_arith(doc) ->
+ "Test that doing arithmetics on [] gives a badarith EXIT and not a crash.";
+nil_arith(suite) ->
+ [];
+nil_arith(Config) when list(Config) ->
+ ?line ba_plus_minus_times([], []),
+
+ ?line ba_plus_minus_times([], 0),
+ ?line ba_plus_minus_times([], 42),
+ ?line ba_plus_minus_times([], 38724978123478923784),
+ ?line ba_plus_minus_times([], 38.72),
+
+ ?line ba_plus_minus_times(0, []),
+ ?line ba_plus_minus_times(334, []),
+ ?line ba_plus_minus_times(387249797813478923784, []),
+ ?line ba_plus_minus_times(344.22, []),
+
+ ?line ba_div_rem([], []),
+
+ ?line ba_div_rem([], 0),
+ ?line ba_div_rem([], 1),
+ ?line ba_div_rem([], 42),
+ ?line ba_div_rem([], 38724978123478923784),
+ ?line ba_div_rem(344.22, []),
+
+ ?line ba_div_rem(0, []),
+ ?line ba_div_rem(1, []),
+ ?line ba_div_rem(334, []),
+ ?line ba_div_rem(387249797813478923784, []),
+ ?line ba_div_rem(344.22, []),
+
+ ?line ba_div_rem(344.22, 0.0),
+ ?line ba_div_rem(1, 0.0),
+ ?line ba_div_rem(392873498733971, 0.0),
+
+ ?line ba_bop([], []),
+ ?line ba_bop(0, []),
+ ?line ba_bop(42, []),
+ ?line ba_bop(-42342742987343, []),
+ ?line ba_bop(238.342, []),
+ ?line ba_bop([], 0),
+ ?line ba_bop([], -243),
+ ?line ba_bop([], 243),
+ ?line ba_bop([], 2438724982478933),
+ ?line ba_bop([], 3987.37),
+
+ ?line ba_bnot([]),
+ ?line ba_bnot(23.33),
+
+ ?line ba_shift([], []),
+ ?line ba_shift([], 0),
+ ?line ba_shift([], 4),
+ ?line ba_shift([], -4),
+ ?line ba_shift([], 2343333333333),
+ ?line ba_shift([], -333333333),
+ ?line ba_shift([], 234.00),
+ ?line ba_shift(23, []),
+ ?line ba_shift(0, []),
+ ?line ba_shift(-3433443433433323, []),
+ ?line ba_shift(433443433433323, []),
+ ?line ba_shift(343.93, []),
+ ok.
+
+ba_plus_minus_times(A, B) ->
+ io:format("~p + ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A + B),
+ io:format("~p - ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A - B),
+ io:format("~p * ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A * B).
+
+ba_div_rem(A, B) ->
+ io:format("~p / ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A / B),
+ io:format("~p div ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A div B),
+ io:format("~p rem ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A rem B).
+
+ba_bop(A, B) ->
+ io:format("~p band ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A band B),
+ io:format("~p bor ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A bor B),
+ io:format("~p bxor ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A bxor B).
+
+ba_shift(A, B) ->
+ io:format("~p bsl ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A bsl B),
+ io:format("~p bsr ~p", [A, B]),
+ {'EXIT', {badarith, _}} = (catch A bsr B).
+
+ba_bnot(A) ->
+ io:format("bnot ~p", [A]),
+ {'EXIT', {badarith, _}} = (catch bnot A).
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