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#!/usr/bin/env escript
%% -*- erlang -*-
% 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.
main(_) ->
code:add_patha("src/etap"),
code:add_pathz("src/couchdb"),
etap:plan(unknown),
case (catch test()) of
ok ->
etap:end_tests();
Other ->
etap:diag(io_lib:format("Test died abnormally: ~p", [Other])),
etap:bail()
end,
ok.
test() ->
couch_config:start_link(["test/etap/121-stats-aggregates.ini"]),
couch_stats_collector:start(),
couch_stats_aggregator:start(),
ok = test_all_empty(),
ok = test_get_empty(),
ok = test_count_stats(),
ok = test_abs_stats(),
ok.
test_all_empty() ->
{Aggs} = couch_stats_aggregator:all(),
etap:is(length(Aggs), 2, "There are only two aggregate types in testing."),
etap:is(
proplists:get_value(testing, Aggs),
{[{stuff, make_agg(<<"yay description">>,
null, null, null, null, null)}]},
"{testing, stuff} is empty at start."
),
etap:is(
proplists:get_value(number, Aggs),
{[{'11', make_agg(<<"randomosity">>,
null, null, null, null, null)}]},
"{number, '11'} is empty at start."
),
ok.
test_get_empty() ->
etap:is(
couch_stats_aggregator:get_json({testing, stuff}),
make_agg(<<"yay description">>, null, null, null, null, null),
"Getting {testing, stuff} returns an empty aggregate."
),
etap:is(
couch_stats_aggregator:get_json({number, '11'}),
make_agg(<<"randomosity">>, null, null, null, null, null),
"Getting {number, '11'} returns an empty aggregate."
),
ok.
test_count_stats() ->
lists:foreach(fun(_) ->
couch_stats_collector:increment({testing, stuff})
end, lists:seq(1, 100)),
couch_stats_aggregator:collect_sample(),
etap:is(
couch_stats_aggregator:get_json({testing, stuff}),
make_agg(<<"yay description">>, 100, 100, null, 100, 100),
"COUNT: Adding values changes the stats."
),
etap:is(
couch_stats_aggregator:get_json({testing, stuff}, 1),
make_agg(<<"yay description">>, 100, 100, null, 100, 100),
"COUNT: Adding values changes stats for all times."
),
timer:sleep(500),
couch_stats_aggregator:collect_sample(),
etap:is(
couch_stats_aggregator:get_json({testing, stuff}),
make_agg(<<"yay description">>, 100, 50, 70.711, 0, 100),
"COUNT: Removing values changes stats."
),
etap:is(
couch_stats_aggregator:get_json({testing, stuff}, 1),
make_agg(<<"yay description">>, 100, 50, 70.711, 0, 100),
"COUNT: Removing values changes stats for all times."
),
timer:sleep(600),
couch_stats_aggregator:collect_sample(),
etap:is(
couch_stats_aggregator:get_json({testing, stuff}),
make_agg(<<"yay description">>, 100, 33.333, 57.735, 0, 100),
"COUNT: Letting time passes doesn't remove data from time 0 aggregates"
),
etap:is(
couch_stats_aggregator:get_json({testing, stuff}, 1),
make_agg(<<"yay description">>, 0, 0, 0, 0, 0),
"COUNT: Letting time pass removes data from other time aggregates."
),
ok.
test_abs_stats() ->
lists:foreach(fun(X) ->
couch_stats_collector:record({number, 11}, X)
end, lists:seq(0, 10)),
couch_stats_aggregator:collect_sample(),
etap:is(
couch_stats_aggregator:get_json({number, 11}),
make_agg(<<"randomosity">>, 5, 5, null, 5, 5),
"ABS: Adding values changes the stats."
),
etap:is(
couch_stats_aggregator:get_json({number, 11}, 1),
make_agg(<<"randomosity">>, 5, 5, null, 5, 5),
"ABS: Adding values changes stats for all times."
),
timer:sleep(500),
couch_stats_collector:record({number, 11}, 15),
couch_stats_aggregator:collect_sample(),
etap:is(
couch_stats_aggregator:get_json({number, 11}),
make_agg(<<"randomosity">>, 20, 10, 7.071, 5, 15),
"ABS: New values changes stats"
),
etap:is(
couch_stats_aggregator:get_json({number, 11}, 1),
make_agg(<<"randomosity">>, 20, 10, 7.071, 5, 15),
"ABS: Removing values changes stats for all times."
),
timer:sleep(600),
couch_stats_aggregator:collect_sample(),
etap:is(
couch_stats_aggregator:get_json({number, 11}),
make_agg(<<"randomosity">>, 20, 10, 7.071, 5, 15),
"ABS: Letting time passes doesn't remove data from time 0 aggregates"
),
etap:is(
couch_stats_aggregator:get_json({number, 11}, 1),
make_agg(<<"randomosity">>, 15, 15, null, 15, 15),
"ABS: Letting time pass removes data from other time aggregates."
),
ok.
make_agg(Desc, Sum, Mean, StdDev, Min, Max) ->
{[
{description, Desc},
{current, Sum},
{sum, Sum},
{mean, Mean},
{stddev, StdDev},
{min, Min},
{max, Max}
]}.
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