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-rw-r--r--lib/diameter/test/diameter_stats_SUITE.erl19
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/diameter/test/diameter_stats_SUITE.erl b/lib/diameter/test/diameter_stats_SUITE.erl
index af52afb59c..76ff764671 100644
--- a/lib/diameter/test/diameter_stats_SUITE.erl
+++ b/lib/diameter/test/diameter_stats_SUITE.erl
@@ -33,6 +33,7 @@
-export([reg/1,
incr/1,
read/1,
+ sum/1,
flush/1]).
-define(stat, diameter_stats).
@@ -53,6 +54,7 @@ tc() ->
[reg,
incr,
read,
+ sum,
flush].
init_per_suite(Config) ->
@@ -98,6 +100,23 @@ read(_) ->
[] = ?stat:read([make_ref()]),
?stat:flush([self(), Ref, make_ref()]).
+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}]}]
+ = lists:sort(?stat:flush([self(), Ref])).
+
flush(_) ->
Ref = make_ref(),
Ctr = '_',