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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2010-2022. 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%
%%
%%
%% Tests of the server implemented by diameter_stats.erl.
%%
-module(diameter_stats_SUITE).
%% testcases, no common_test dependency
-export([run/0,
run/1]).
%% common_test wrapping
-export([suite/0,
all/0,
parallel/1]).
-define(stat, diameter_stats).
%% ===========================================================================
suite() ->
[{timetrap, {seconds, 30}}].
all() ->
[parallel].
parallel(_Config) ->
run().
%% ===========================================================================
%% run/0
run() ->
run([reg, incr, read, sum, flush]).
%% run/1
run(List)
when is_list(List) ->
ok = diameter:start(),
try
diameter_util:run([{[fun run/1, T], 15000} || T <- List])
after
ok = diameter:stop()
end;
run(reg) ->
Ref = '$1',
true = ?stat:reg(Ref),
false = ?stat:reg(Ref); %% duplicate
run(incr) ->
Ref = '_',
Ctr = x,
false = ?stat:incr(Ctr), %% not registered,
1 = ?stat:incr(Ctr, Ref, 1), %% only pids need register
true = ?stat:reg(Ref),
spawn(fun() ->
true = ?stat:reg(Ref),
2 = ?stat:incr(Ctr, self(), 2)
end),
ok = fold(Ctr, Ref, 3), %% folded
?stat:flush([self(), Ref]);
run(read) ->
Ref = make_ref(),
C1 = {a,b},
C2 = {b,a},
true = ?stat:reg(Ref),
1 = ?stat:incr(C1),
1 = ?stat:incr(C2),
2 = ?stat:incr(C1),
7 = ?stat:incr(C1, Ref, 7),
Self = self(),
[{Ref, [{C1,7}]}, {Self, [{C1,2}, {C2,1}]}]
= ?stat:read([self(), Ref, make_ref()]),
[] = ?stat:read([]),
[] = ?stat:read([make_ref()]),
?stat:flush([self(), Ref, make_ref()]);
run(sum) ->
Ref = make_ref(),
C1 = {a,b},
C2 = {b,a},
true = ?stat:reg(Ref),
1 = ?stat:incr(C1),
1 = ?stat:incr(C2),
2 = ?stat:incr(C2),
7 = ?stat:incr(C1, Ref, 7),
[{Ref, [{C1,8}, {C2,2}]}]
= ?stat:sum([Ref, make_ref()]),
Self = self(),
[{Self, [{C1,1}, {C2,2}]}]
= ?stat:sum([self()]),
[{Ref, [{C1,7}]}, {Self, [{C1,1}, {C2,2}]}]
= ?stat:flush([self(), Ref]);
run(flush) ->
Ref = make_ref(),
Ctr = '_',
true = ?stat:reg(Ref),
1 = ?stat:incr(Ctr),
3 = ?stat:incr(Ctr, self(), 2),
2 = ?stat:incr(Ctr, Ref, 2),
Self = self(),
[{Self, [{Ctr, 3}]}] = ?stat:flush([self()]),
1 = ?stat:incr(Ctr),
[{Ref, [{Ctr, 2}]}] = ?stat:flush([Ref]),
[{Self, [{Ctr, 1}]}] = ?stat:flush([self()]),
[] = ?stat:flush([self(), Ref]).
%% ===========================================================================
%% Keep incremented until a fold results in the specified value.
fold(Ctr, Ref, N) ->
case ?stat:incr(Ctr, Ref, 0) of
N ->
ok;
M when M < N ->
erlang:yield(),
fold(Ctr, Ref, N)
end.
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