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authorBjörn Gustavsson <[email protected]>2017-10-16 12:31:09 +0200
committerBjörn Gustavsson <[email protected]>2017-10-18 14:05:01 +0200
commite6bc3f31f8d3e67be67c2c6b53eb868dbc53d7ec (patch)
treec721a04316fba7eabb2ab2ff4219b8903babcfdb /lib/observer/test
parent31ad587b6d75e8697964e2b80709fb3b3d2901d5 (diff)
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Verify that binaries of different sizes are dumped correctly
Diffstat (limited to 'lib/observer/test')
-rw-r--r--lib/observer/test/crashdump_helper.erl11
-rw-r--r--lib/observer/test/crashdump_viewer_SUITE.erl13
2 files changed, 23 insertions, 1 deletions
diff --git a/lib/observer/test/crashdump_helper.erl b/lib/observer/test/crashdump_helper.erl
index 04c8773498..41041682c2 100644
--- a/lib/observer/test/crashdump_helper.erl
+++ b/lib/observer/test/crashdump_helper.erl
@@ -20,7 +20,8 @@
-module(crashdump_helper).
-export([n1_proc/2,remote_proc/2,
- dump_maps/0,create_maps/0]).
+ dump_maps/0,create_maps/0,
+ create_binaries/0]).
-compile(r18).
-include_lib("common_test/include/ct.hrl").
@@ -61,6 +62,7 @@ n1_proc(Creator,_N2,Pid2,Port2,_L) ->
put(ref,Ref),
put(pid,Pid),
put(bin,Bin),
+ put(bins,create_binaries()),
put(sub_bin,SubBin),
put(bignum,83974938738373873),
put(neg_bignum,-38748762783736367),
@@ -94,6 +96,13 @@ remote_proc(P1,Creator) ->
receive after infinity -> ok end
end).
+create_binaries() ->
+ Sizes = lists:seq(60, 70) ++ lists:seq(120, 140),
+ [begin
+ <<H:16/unit:8>> = erlang:md5(<<Size:32>>),
+ Data = ((H bsl (8*150)) div (H+7919)),
+ <<Data:Size/unit:8>>
+ end || Size <- Sizes].
%%%
%%% Test dumping of maps. Dumping of maps only from OTP 20.2.
diff --git a/lib/observer/test/crashdump_viewer_SUITE.erl b/lib/observer/test/crashdump_viewer_SUITE.erl
index 6ac9d7d3fb..86a60e15f4 100644
--- a/lib/observer/test/crashdump_viewer_SUITE.erl
+++ b/lib/observer/test/crashdump_viewer_SUITE.erl
@@ -364,6 +364,10 @@ special(File,Procs) ->
crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
io:format(" expand binary ok",[]),
+ Binaries = crashdump_helper:create_binaries(),
+ verify_binaries(Binaries, proplists:get_value(bins,Dict)),
+ io:format(" binaries ok",[]),
+
#proc{last_calls=LastCalls} = ProcDetails,
true = length(LastCalls) =< 4,
@@ -534,6 +538,15 @@ special(File,Procs) ->
end,
ok.
+verify_binaries([H|T1], [H|T2]) ->
+ %% Heap binary.
+ verify_binaries(T1, T2);
+verify_binaries([Bin|T1], [['#CDVBin',Offset,Size,Pos]|T2]) ->
+ %% Refc binary.
+ {ok,<<Bin:Size/binary>>} = crashdump_viewer:expand_binary({Offset,Size,Pos}),
+ verify_binaries(T1, T2);
+verify_binaries([], []) ->
+ ok.
lookat_all_pids([]) ->
ok;