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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2011-2018. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(beam_except_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
multiple_allocs/1,bs_get_tail/1,coverage/1,
binary_construction_allocation/1]).
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[{group,p}].
groups() ->
[{p,[parallel],
[multiple_allocs,
bs_get_tail,
coverage,
binary_construction_allocation]}].
init_per_suite(Config) ->
test_lib:recompile(?MODULE),
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
multiple_allocs(_Config) ->
{'EXIT',{{badmatch,#{true:=[p]}},_}} =
(catch could(pda, 0.0, {false,true}, {p})),
{'EXIT',{function_clause,_}} = (catch place(lee)),
{'EXIT',{{badmatch,wanted},_}} = (catch conditions()),
ok.
could(Coupons = pda, Favorite = _pleasure = 0.0, {_, true}, {Presents}) ->
(0 = true) = #{true => [Presents]}.
place(lee) ->
(pregnancy = presentations) = [hours | [purchase || _ <- 0]] + wine.
conditions() ->
(talking = going) = storage + [large = wanted].
bs_get_tail(Config) ->
{<<"abc">>,0,0,Config} = bs_get_tail_1(id(<<0:32, "abc">>), 0, 0, Config),
{'EXIT',
{function_clause,
[{?MODULE,bs_get_tail_1,[<<>>,0,0,Config],_}|_]}} =
(catch bs_get_tail_1(id(<<>>), 0, 0, Config)),
ok = bs_get_tail_2(<<"W">>, <<"X">>, <<"Z">>),
ok = bs_get_tail_2(<<"M">>, <<"X">>, <<"Z">>),
{'EXIT',
{function_clause,
[{?MODULE,do_get_bs_tail_2,[<<"A">>,<<"B">>,[],<<"C">>],_}|_]}} =
(catch bs_get_tail_2(<<"A">>, <<"B">>, <<"C">>)),
ok.
bs_get_tail_1(<<_:32, Rest/binary>>, Z1, Z2, F1) ->
{Rest,Z1,Z2,F1}.
bs_get_tail_2(A, B, C) ->
do_get_bs_tail_2(A, B, [], C).
do_get_bs_tail_2(<<"W">>, <<"X">>, _, <<"Z">>) -> ok;
do_get_bs_tail_2(<<"M">>, <<"X">>, _, <<"Z">>) -> ok.
coverage(_) ->
File = {file,"fake.erl"},
ok = fc(a),
{'EXIT',{function_clause,
[{?MODULE,fc,[[x]],[File,{line,2}]}|_]}} =
(catch fc([x])),
{'EXIT',{function_clause,
[{?MODULE,fc,[y],[File,{line,2}]}|_]}} =
(catch fc(y)),
case ?MODULE of
beam_except_no_opt_SUITE ->
%% There will be a different stack fram in
%% unoptimized code.
ok;
_ ->
{'EXIT',{function_clause,
[{?MODULE,fc,[[a,b,c]],[File,{line,6}]}|_]}} =
(catch fc([a,b,c]))
end,
{'EXIT',{undef,[{erlang,error,[a,b,c],_}|_]}} =
(catch erlang:error(a, b, c)),
{'EXIT',{badarith,[{?MODULE,bar,1,[File,{line,9}]}|_]}} =
(catch bar(x)),
{'EXIT',{{case_clause,{1}},[{?MODULE,bar,1,[File,{line,9}]}|_]}} =
(catch bar(0)),
Self = self(),
{'EXIT',{{strange,Self},[{?MODULE,foo,[any],[File,{line,14}]}|_]}} =
(catch foo(any)),
{ok,succeed,1,2} = foobar(succeed, 1, 2),
{'EXIT',{function_clause,[{?MODULE,foobar,[[fail],1,2],
[{file,"fake.erl"},{line,16}]}|_]}} =
(catch foobar([fail], 1, 2)),
{'EXIT',{function_clause,[{?MODULE,fake_function_clause,[{a,b},42.0],_}|_]}} =
(catch fake_function_clause({a,b})),
ok.
fake_function_clause(A) -> error(function_clause, [A,42.0]).
binary_construction_allocation(_Config) ->
ok = do_binary_construction_allocation("PUT"),
ok.
do_binary_construction_allocation(Req) ->
%% Allocation for building the error term was done by the
%% bs_init2 instruction. beam_except crashed because it expected
%% an explicit allocation instruction.
ok = case Req of
"POST" -> {error, <<"BAD METHOD ", Req/binary>>, Req};
_ -> ok
end.
id(I) -> I.
-file("fake.erl", 1).
fc(a) -> %Line 2
ok; %Line 3
fc(L) when length(L) > 2 -> %Line 4
%% Not the same as a "real" function_clause error.
error(function_clause, [L]). %Line 6
%% Would crash the compiler.
bar(X) -> %Line 8
case {X+1} of %Line 9
1 -> ok %Line 10
end. %Line 11
%% Cover collection code for function_clause exceptions.
foo(A) -> %Line 13
error({strange,self()}, [A]). %Line 14
%% Cover beam_except:tag_literal/1.
foobar(A, B, C) when is_atom(A) -> %Line 16
{ok,A,B,C}. %Line 17
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