opentelemetry-erlang-contrib/instrumentation/opentelemetry_cowboy/test/opentelemetry_cowboy_SUITE.erl

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-module(opentelemetry_cowboy_SUITE).
-compile(export_all).
-compile(nowarn_export_all).
-include_lib("common_test/include/ct.hrl").
-include_lib("stdlib/include/assert.hrl").
-include_lib("opentelemetry_api/include/opentelemetry.hrl").
-include_lib("opentelemetry/include/otel_span.hrl").
-include_lib("opentelemetry_api/include/otel_tracer.hrl").
all() ->
[
successful_request,
chunked_request,
failed_request,
client_timeout_request,
idle_timeout_request,
chunk_timeout_request,
bad_request,
binary_status_code_request
].
init_per_suite(Config) ->
ok = application:load(opentelemetry),
{ok,_} = application:ensure_all_started(ranch),
Dispatch = cowboy_router:compile([{"localhost", [
{"/success", test_h, success},
{"/chunked", test_h, chunked},
{"/chunked_slow", test_h, chunked_slow},
{"/slow", test_h, slow},
{"/failure", test_h, failure},
{"/binary_status_code", test_h,
binary_status_code}
]}]),
{ok, _} = cowboy:start_clear(http, [{port, 8080}], #{
env => #{dispatch => Dispatch},
stream_handlers => [cowboy_telemetry_h, cowboy_stream_h],
idle_timeout => 150
}
),
Config.
end_per_suite(_Config) ->
application:unload(opentelemetry),
application:stop(ranch),
application:stop(telemetry).
init_per_testcase(_, Config) ->
application:set_env(opentelemetry, processors, [{otel_batch_processor, #{scheduled_delay_ms => 1}}]),
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{ok, _} = application:ensure_all_started(telemetry),
{ok, _} = application:ensure_all_started(opentelemetry),
{ok, _} = application:ensure_all_started(opentelemetry_telemetry),
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{ok, _} = application:ensure_all_started(opentelemetry_cowboy),
opentelemetry_cowboy:setup(),
otel_batch_processor:set_exporter(otel_exporter_pid, self()),
Config.
end_per_testcase(_, Config) ->
Config.
successful_request(_Config) ->
Headers = [
{"traceparent", "00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01"},
{"tracestate", "congo=t61rcWkgMzE"},
{"x-forwarded-for", "203.0.133.195, 70.41.3.18, 150.172.238.178"},
{"user-agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:81.0) Gecko/20100101 Firefox/81.0"}],
{ok, {{_Version, 200, _ReasonPhrase}, _Headers, _Body}} =
httpc:request(get, {"http://localhost:8080/success", Headers}, [], []),
receive
{span, #span{name=Name,attributes=Attributes,parent_span_id=ParentSpanId,kind=Kind}} ->
?assertEqual(<<"HTTP GET">>, Name),
?assertEqual(13235353014750950193, ParentSpanId),
?assertEqual(?SPAN_KIND_SERVER, Kind),
ExpectedAttrs = #{
'http.client_ip' => <<"203.0.133.195">>,
'http.flavor' => '1.1',
'http.host' => <<"localhost">>,
'http.host.port' => 8080,
'http.method' => <<"GET">>,
'http.scheme' => <<"http">>,
'http.target' => <<"/success">>,
'http.user_agent' => <<"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:81.0) Gecko/20100101 Firefox/81.0">>,
'net.host.ip' => <<"127.0.0.1">>,
'net.transport' => 'IP.TCP',
'http.status_code' => 200,
'http.request_content_length' => 0,
'http.response_content_length' => 12},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(successful_request)
end.
chunked_request(_Config) ->
{ok, {{_Version, 200, _ReasonPhrase}, _Headers, _Body}} =
httpc:request(get, {"http://localhost:8080/chunked", []}, [], []),
receive
{span, #span{name=Name,attributes=Attributes,parent_span_id=undefined,kind=Kind}} ->
?assertEqual(<<"HTTP GET">>, Name),
?assertEqual(?SPAN_KIND_SERVER, Kind),
ExpectedAttrs = #{
'http.client_ip' => <<"127.0.0.1">>,
'http.flavor' => '1.1',
'http.host' => <<"localhost">>,
'http.host.port' => 8080,
'http.method' => <<"GET">>,
'http.scheme' => <<"http">>,
'http.target' => <<"/chunked">>,
'http.user_agent' => <<>>,
'net.host.ip' => <<"127.0.0.1">>,
'net.transport' => 'IP.TCP',
'http.status_code' => 200,
'http.request_content_length' => 0,
'http.response_content_length' => 14},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(chunked_request)
end.
failed_request(_Config) ->
{ok, {{_Version, 500, _ReasonPhrase}, _Headers, _Body}} =
httpc:request(get, {"http://localhost:8080/failure", []}, [], []),
receive
{span, #span{name=Name,events=Events,attributes=Attributes,parent_span_id=undefined,kind=Kind}} ->
[Event] = otel_events:list(Events),
#event{name= <<"exception">>} = Event,
?assertEqual(<<"HTTP GET">>, Name),
?assertEqual(?SPAN_KIND_SERVER, Kind),
ExpectedAttrs = #{
'http.client_ip' => <<"127.0.0.1">>,
'http.flavor' => '1.1',
'http.host' => <<"localhost">>,
'http.host.port' => 8080,
'http.method' => <<"GET">>,
'http.scheme' => <<"http">>,
'http.target' => <<"/failure">>,
'http.user_agent' => <<>>,
'net.host.ip' => <<"127.0.0.1">>,
'net.transport' => 'IP.TCP',
'http.status_code' => 500,
'http.request_content_length' => 0,
'http.response_content_length' => 0},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(failed_request)
end.
client_timeout_request(_Config) ->
{error, timeout} =
httpc:request(get, {"http://localhost:8080/slow", []}, [{timeout, 50}], []),
receive
{span, #span{name=Name,events=Events,attributes=Attributes,parent_span_id=undefined,kind=Kind}} ->
[Event] = otel_events:list(Events),
#event{name='socket_error',attributes = EventAttributes} = Event,
ExpectedEventAttrs = #{
error => closed,
reason => 'The socket has been closed.'
},
?assertMatch(ExpectedEventAttrs, otel_attributes:map(EventAttributes)),
?assertEqual(<<"HTTP GET">>, Name),
?assertEqual(?SPAN_KIND_SERVER, Kind),
ExpectedAttrs = #{
'http.client_ip' => <<"127.0.0.1">>,
'http.flavor' => '1.1',
'http.host' => <<"localhost">>,
'http.host.port' => 8080,
'http.method' => <<"GET">>,
'http.scheme' => <<"http">>,
'http.target' => <<"/slow">>,
'http.user_agent' => <<>>,
'net.host.ip' => <<"127.0.0.1">>,
'net.transport' => 'IP.TCP',
'http.request_content_length' => 0,
'http.response_content_length' => 0},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(client_timeout_request)
end.
idle_timeout_request(_Config) ->
{error, socket_closed_remotely} =
httpc:request(head, {"http://localhost:8080/slow", []}, [], []),
receive
{span, #span{name=Name,events=Events,attributes=Attributes,parent_span_id=undefined,kind=Kind}} ->
[Event] = otel_events:list(Events),
#event{name= 'connection_error',attributes = EventAttributes} = Event,
ExpectedEventAttrs = #{
error => timeout,
reason => 'Connection idle longer than configuration allows.'
},
?assertMatch(ExpectedEventAttrs, otel_attributes:map(EventAttributes)),
?assertEqual(<<"HTTP HEAD">>, Name),
?assertEqual(?SPAN_KIND_SERVER, Kind),
ExpectedAttrs = #{
'http.client_ip' => <<"127.0.0.1">>,
'http.flavor' => '1.1',
'http.host' => <<"localhost">>,
'http.host.port' => 8080,
'http.method' => <<"HEAD">>,
'http.scheme' => <<"http">>,
'http.target' => <<"/slow">>,
'http.user_agent' => <<>>,
'net.host.ip' => <<"127.0.0.1">>,
'net.transport' => 'IP.TCP',
'http.request_content_length' => 0,
'http.response_content_length' => 0},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(idle_timeout_request)
end.
chunk_timeout_request(_Config) ->
httpc:request(head, {"http://localhost:8080/chunked_slow", []}, [], []),
receive
{span, #span{name=Name,attributes=Attributes,parent_span_id=undefined,kind=Kind}} ->
?assertEqual(<<"HTTP HEAD">>, Name),
?assertEqual(?SPAN_KIND_SERVER, Kind),
ExpectedAttrs = #{
'http.client_ip' => <<"127.0.0.1">>,
'http.flavor' => '1.1',
'http.host' => <<"localhost">>,
'http.host.port' => 8080,
'http.method' => <<"HEAD">>,
'http.scheme' => <<"http">>,
'http.target' => <<"/chunked_slow">>,
'http.user_agent' => <<>>,
'net.host.ip' => <<"127.0.0.1">>,
'net.transport' => 'IP.TCP',
'http.status_code' => 200,
'http.request_content_length' => 0,
'http.response_content_length' => 0},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(chunk_timeout_request)
end.
bad_request(_Config) ->
Headers = [
{"traceparent", "00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01"},
{"tracestate", "congo=t61rcWkgMzE"},
{"x-forwarded-for", "203.0.133.195, 70.41.3.18, 150.172.238.178"}],
{ok, {{_Version, 501, _ReasonPhrase}, _Headers, _Body}} =
httpc:request(trace, {"http://localhost:8080/", Headers}, [], []),
receive
{span, #span{name=Name,events=Events,attributes=Attributes,parent_span_id=undefined,kind=Kind}} ->
[Event] = otel_events:list(Events),
#event{name='connection_error',attributes = EventAttributes} = Event,
ExpectedEventAttrs = #{
error => no_error,
reason => 'The TRACE method is currently not implemented. (RFC7231 4.3.8)'
},
?assertMatch(ExpectedEventAttrs, otel_attributes:map(EventAttributes)),
?assertEqual(<<"HTTP Error">>, Name),
?assertEqual(?SPAN_KIND_SERVER, Kind),
ExpectedAttrs = #{
'http.status_code' => 501,
'http.response_content_length' => 0},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(bad_request)
end.
binary_status_code_request(_Config) ->
Headers = [
{"traceparent", "00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01"},
{"tracestate", "congo=t61rcWkgMzE"},
{"x-forwarded-for", "203.0.133.195, 70.41.3.18, 150.172.238.178"},
{"user-agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:81.0) Gecko/20100101 Firefox/81.0"}],
{ok, {{_Version, 200, _ReasonPhrase}, _Headers, _Body}} =
httpc:request(get, {"http://localhost:8080/binary_status_code", Headers}, [], []),
receive
{span, #span{name=Name,attributes=Attributes,parent_span_id=ParentSpanId,kind=Kind}} ->
?assertEqual(<<"HTTP GET">>, Name),
?assertEqual(?SPAN_KIND_SERVER, Kind),
?assertEqual(13235353014750950193, ParentSpanId),
ExpectedAttrs = #{
'http.client_ip' => <<"203.0.133.195">>,
'http.flavor' => '1.1',
'http.host' => <<"localhost">>,
'http.host.port' => 8080,
'http.method' => <<"GET">>,
'http.scheme' => <<"http">>,
'http.target' => <<"/binary_status_code">>,
'http.user_agent' => <<"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:81.0) Gecko/20100101 Firefox/81.0">>,
'net.host.ip' => <<"127.0.0.1">>,
'net.transport' => 'IP.TCP',
'http.status_code' => 200,
'http.request_content_length' => 0,
'http.response_content_length' => 12
},
?assertMatch(ExpectedAttrs, otel_attributes:map(Attributes))
after
1000 -> ct:fail(binary_status_code_request)
end.