The R13B03 release.OTP_R13B03

1 files changed, 72 insertions, 0 deletions

diff --git a/erts/emulator/test/erts_debug_SUITE.erl b/erts/emulator/test/erts_debug_SUITE.erl
new file mode 100644
index 0000000000..e60a999df1
--- /dev/null
+++ b/erts/emulator/test/erts_debug_SUITE.erl
@@ -0,0 +1,72 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2005-2009. 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(erts_debug_SUITE).
+-include("test_server.hrl").
+
+-export([all/1,init_per_testcase/2,fin_per_testcase/2,
+	 flat_size/1,flat_size_big/1,df/1]).
+
+all(suite) ->
+    [flat_size,flat_size_big,df].
+
+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()}.