%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2010. 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.
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%% %CopyrightEnd%
%%
-module(erts_debug_SUITE).
-include_lib("test_server/include/test_server.hrl").
-export([all/0,groups/0,init_per_group/2,end_per_group/2,init_per_testcase/2,fin_per_testcase/2,
flat_size/1,flat_size_big/1,df/1,instructions/1]).
all() ->
[flat_size, flat_size_big, df, instructions].
groups() ->
[].
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
Dog=?t:timetrap(?t:minutes(2)),
[{watchdog, Dog}|Config].
fin_per_testcase(_Func, Config) ->
Dog=?config(watchdog, Config),
?t:timetrap_cancel(Dog).
flat_size(Config) when is_list(Config) ->
0 = erts_debug:flat_size([]),
0 = erts_debug:flat_size(42),
2 = erts_debug:flat_size([a|b]),
1 = erts_debug:flat_size({}),
2 = erts_debug:flat_size({[]}),
3 = erts_debug:flat_size({a,b}),
7 = erts_debug:flat_size({a,[b,c]}),
ok.
flat_size_big(Config) when is_list(Config) ->
%% Build a term whose external size only fits in a big num (on 32-bit CPU).
flat_size_big_1(16#11111111111111117777777777777777888889999, 0, 16#FFFFFFF).
flat_size_big_1(Term, Size0, Limit) when Size0 < Limit ->
case erts_debug:flat_size(Term) of
Size when is_integer(Size), Size0 < Size ->
io:format("~p", [Size]),
flat_size_big_1([Term|Term], Size, Limit)
end;
flat_size_big_1(_, _, _) -> ok.
df(Config) when is_list(Config) ->
?line P0 = pps(),
?line PrivDir = ?config(priv_dir, Config),
?line ok = file:set_cwd(PrivDir),
?line erts_debug:df(?MODULE),
?line Beam = filename:join(PrivDir, ?MODULE_STRING++".dis"),
?line {ok,Bin} = file:read_file(Beam),
?line ok = io:put_chars(binary_to_list(Bin)),
?line ok = file:delete(Beam),
?line true = (P0 == pps()),
ok.
pps() ->
{erlang:ports()}.
instructions(Config) when is_list(Config) ->
?line Is = erts_debug:instructions(),
?line _ = [list_to_atom(I) || I <- Is],
ok.
