aboutsummaryrefslogtreecommitdiffstats
path: root/test/metrics_SUITE.erl
diff options
context:
space:
mode:
Diffstat (limited to 'test/metrics_SUITE.erl')
-rw-r--r--test/metrics_SUITE.erl134
1 files changed, 134 insertions, 0 deletions
diff --git a/test/metrics_SUITE.erl b/test/metrics_SUITE.erl
new file mode 100644
index 0000000..6b10fb3
--- /dev/null
+++ b/test/metrics_SUITE.erl
@@ -0,0 +1,134 @@
+%% Copyright (c) 2017, Loïc Hoguin <[email protected]>
+%%
+%% Permission to use, copy, modify, and/or distribute this software for any
+%% purpose with or without fee is hereby granted, provided that the above
+%% copyright notice and this permission notice appear in all copies.
+%%
+%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+-module(metrics_SUITE).
+-compile(export_all).
+
+-import(ct_helper, [config/2]).
+-import(ct_helper, [doc/1]).
+-import(cowboy_test, [gun_open/1]).
+-import(cowboy_test, [gun_down/1]).
+
+%% ct.
+
+all() ->
+ cowboy_test:common_all().
+
+groups() ->
+ cowboy_test:common_groups(ct_helper:all(?MODULE)).
+
+init_per_group(Name = http, Config) ->
+ cowboy_test:init_http(Name, init_plain_opts(Config), Config);
+init_per_group(Name = https, Config) ->
+ cowboy_test:init_http(Name, init_plain_opts(Config), Config);
+init_per_group(Name = h2, Config) ->
+ cowboy_test:init_http(Name, init_plain_opts(Config), Config);
+init_per_group(Name = h2c, Config) ->
+ Config1 = cowboy_test:init_http(Name, init_plain_opts(Config), Config),
+ lists:keyreplace(protocol, 1, Config1, {protocol, http2});
+init_per_group(Name = http_compress, Config) ->
+ cowboy_test:init_http(Name, init_compress_opts(Config), Config);
+init_per_group(Name = https_compress, Config) ->
+ cowboy_test:init_http(Name, init_compress_opts(Config), Config);
+init_per_group(Name = h2_compress, Config) ->
+ cowboy_test:init_http(Name, init_compress_opts(Config), Config);
+init_per_group(Name = h2c_compress, Config) ->
+ Config1 = cowboy_test:init_http(Name, init_compress_opts(Config), Config),
+ lists:keyreplace(protocol, 1, Config1, {protocol, http2}).
+
+end_per_group(Name, _) ->
+ cowboy:stop_listener(Name).
+
+init_plain_opts(Config) ->
+ #{
+ env => #{dispatch => cowboy_router:compile(init_routes(Config))},
+ metrics_callback => do_metrics_callback(),
+ stream_handlers => [cowboy_metrics_h, cowboy_stream_h]
+ }.
+
+init_compress_opts(Config) ->
+ #{
+ env => #{dispatch => cowboy_router:compile(init_routes(Config))},
+ metrics_callback => do_metrics_callback(),
+ stream_handlers => [cowboy_metrics_h, cowboy_compress_h, cowboy_stream_h]
+ }.
+
+init_routes(_) -> [
+ {"localhost", [
+ {"/", hello_h, []}
+ ]}
+].
+
+do_metrics_callback() ->
+ fun(Metrics=#{req := #{headers := #{<<"x-test-pid">> := PidBin}}}) ->
+ Pid = list_to_pid(binary_to_list(PidBin)),
+ Pid ! {metrics, self(), Metrics},
+ ok
+ end.
+
+%% Tests.
+
+hello_world(Config) ->
+ %% Perform a request.
+ ConnPid = gun_open(Config),
+ Ref = gun:get(ConnPid, "/", [{<<"x-test-pid">>, pid_to_list(self())}]),
+ {response, nofin, 200, RespHeaders} = gun:await(ConnPid, Ref),
+ {ok, RespBody} = gun:await_body(ConnPid, Ref),
+ gun:close(ConnPid),
+ %% Receive the metrics and print them.
+ receive
+ {metrics, From, Metrics} ->
+ %% Ensure the timestamps are in the expected order.
+ #{
+ req_start := ReqStart, req_end := ReqEnd,
+ resp_start := RespStart, resp_end := RespEnd
+ } = Metrics,
+ true = (ReqStart =< RespStart)
+ and (RespStart =< RespEnd)
+ and (RespEnd =< ReqEnd),
+ %% We didn't send a body.
+ #{
+ req_body_start := undefined,
+ req_body_end := undefined,
+ req_body_length := 0
+ } = Metrics,
+ %% We got a 200 response with a body.
+ #{
+ resp_status := 200,
+ resp_headers := ExpectedRespHeaders,
+ resp_body_length := RespBodyLen
+ } = Metrics,
+ ExpectedRespHeaders = maps:from_list(RespHeaders),
+ true = RespBodyLen > 0,
+ %% The request process executed normally.
+ #{procs := Procs} = Metrics,
+ [{_, #{
+ spawn := ProcSpawn,
+ exit := ProcExit,
+ reason := normal
+ }}] = maps:to_list(Procs),
+ true = ProcSpawn =< ProcExit,
+ %% Confirm other metadata are as expected.
+ #{
+ ref := _,
+ pid := From,
+ streamid := 1,
+ reason := normal,
+ req := #{}
+ } = Metrics,
+ %% All good!
+ ok
+ after 1000 ->
+ error(timeout)
+ end.