From 5964273cc4354b7378b8bdf49fe455d2b46d7c3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Mon, 26 Mar 2018 18:49:09 +0200
Subject: Fix the flushing of messages when switching to Websocket

We now flush messages that are specific to cowboy_http only.

Stream handlers should also flush their own specific messages
if necessary, although timeouts will be flushed regardless
of where they originate from.

Also renames the http_SUITE to old_http_SUITE to distinguish
new tests from old tests. Most old tests need to be removed
or converted eventually as they're legacy tests from Cowboy 1.0.
---
 test/http_SUITE.erl | 799 ++--------------------------------------------------
 1 file changed, 26 insertions(+), 773 deletions(-)

(limited to 'test/http_SUITE.erl')

diff --git a/test/http_SUITE.erl b/test/http_SUITE.erl
index a971e45..16d7e76 100644
--- a/test/http_SUITE.erl
+++ b/test/http_SUITE.erl
@@ -1,5 +1,4 @@
-%% Copyright (c) 2011-2017, Loïc Hoguin <essen@ninenines.eu>
-%% Copyright (c) 2011, Anthony Ramine <nox@dev-extend.eu>
+%% Copyright (c) 2018, Loïc Hoguin <essen@ninenines.eu>
 %%
 %% Permission to use, copy, modify, and/or distribute this software for any
 %% purpose with or without fee is hereby granted, provided that the above
@@ -18,779 +17,33 @@
 -compile(nowarn_export_all).
 
 -import(ct_helper, [config/2]).
+-import(ct_helper, [doc/1]).
 -import(cowboy_test, [gun_open/1]).
--import(cowboy_test, [gun_open/2]).
--import(cowboy_test, [gun_down/1]).
--import(cowboy_test, [raw_open/1]).
--import(cowboy_test, [raw_send/2]).
--import(cowboy_test, [raw_recv_head/1]).
--import(cowboy_test, [raw_expect_recv/2]).
 
-%% ct.
-
-all() ->
-	[
-		{group, http},
-		{group, https},
-		{group, http_compress},
-		{group, https_compress},
-		{group, parse_host},
-		{group, request_timeout_infinity},
-		{group, idle_timeout_infinity},
-		{group, set_env},
-		{group, router_compile}
-	].
-
-groups() ->
-	Tests = ct_helper:all(?MODULE) -- [
-		parse_host, set_env_dispatch, path_allow_colon,
-		request_timeout_infinity, idle_timeout_infinity
-	],
-	[
-		{http, [], Tests}, %% @todo parallel
-		{https, [parallel], Tests},
-		{http_compress, [parallel], Tests},
-		{https_compress, [parallel], Tests},
-		{parse_host, [], [
-			parse_host
-		]},
-		{request_timeout_infinity, [], [
-			request_timeout_infinity
-		]},
-		{idle_timeout_infinity, [], [
-			idle_timeout_infinity
-		]},
-		{set_env, [], [
-			set_env_dispatch
-		]},
-		{router_compile, [], [
-			path_allow_colon
-		]}
-	].
-
-init_per_group(Name = http, Config) ->
-	cowboy_test:init_http(Name, #{env => #{dispatch => init_dispatch(Config)}}, Config);
-init_per_group(Name = https, Config) ->
-	cowboy_test:init_https(Name, #{env => #{dispatch => init_dispatch(Config)}}, Config);
-init_per_group(Name = http_compress, Config) ->
-	cowboy_test:init_http(Name, #{
-		env => #{dispatch => init_dispatch(Config)},
-		compress => true
-	}, Config);
-init_per_group(Name = https_compress, Config) ->
-	cowboy_test:init_https(Name, #{
-		env => #{dispatch => init_dispatch(Config)},
-		compress => true
-	}, Config);
-init_per_group(parse_host, Config) ->
-	Dispatch = cowboy_router:compile([
-		{'_', [
-			{"/req_attr", http_req_attr, []}
-		]}
+all() -> [{group, clear}].
+
+groups() -> [{clear, [parallel], ct_helper:all(?MODULE)}].
+
+init_routes(_) -> [
+	{"localhost", [
+		{"/", hello_h, []}
+	]}
+].
+
+switch_protocol_flush(Config) ->
+	doc("Confirm that switch_protocol does not flush unrelated messages."),
+	ProtoOpts = #{
+		env => #{dispatch => cowboy_router:compile(init_routes(Config))},
+		stream_handlers => [switch_protocol_flush_h]
+	},
+	{ok, _} = cowboy:start_clear(switch_protocol_flush, [{port, 0}], ProtoOpts),
+	Port = ranch:get_port(switch_protocol_flush),
+	Self = self(),
+	ConnPid = gun_open([{port, Port}, {type, tcp}, {protocol, http}|Config]),
+	_ = gun:get(ConnPid, "/", [
+		{<<"x-test-pid">>, pid_to_list(Self)}
 	]),
-	{ok, _} = cowboy:start_clear(parse_host, [{port, 0}], #{
-		env => #{dispatch => Dispatch}
-	}),
-	Port = ranch:get_port(parse_host),
-	[{type, tcp}, {protocol, http}, {port, Port}, {opts, []}|Config];
-init_per_group(request_timeout_infinity, Config) ->
-	Ref = request_timeout_infinity,
-	{ok, Pid} = cowboy:start_clear(Ref, [{port, 0}], #{
-		env => #{dispatch => init_dispatch(Config)},
-		request_timeout => infinity
-	}),
-	Port = ranch:get_port(request_timeout_infinity),
-	[{pid, Pid}, {ref, Ref}, {type, tcp}, {protocol, http}, {port, Port}, {opts, []}|Config];
-init_per_group(idle_timeout_infinity, Config) ->
-	Ref = idle_timeout_infinity,
-	{ok, Pid} = cowboy:start_clear(Ref, [{port, 0}], #{
-		env => #{dispatch => init_dispatch(Config)},
-		idle_timeout => infinity
-	}),
-	Port = ranch:get_port(idle_timeout_infinity),
-	[{pid, Pid}, {ref, Ref}, {type, tcp}, {protocol, http}, {port, Port}, {opts, []}|Config];
-init_per_group(set_env, Config) ->
-	{ok, _} = cowboy:start_clear(set_env, [{port, 0}], #{
-		env => #{dispatch => []}
-	}),
-	Port = ranch:get_port(set_env),
-	[{type, tcp}, {protocol, http}, {port, Port}, {opts, []}|Config];
-init_per_group(router_compile, Config) ->
-	Config.
-
-end_per_group(router_compile, _) ->
-	ok;
-end_per_group(Name, _) ->
-	ok = cowboy:stop_listener(Name).
-
-%% Dispatch configuration.
-
-init_dispatch(_) ->
-	cowboy_router:compile([
-		{"localhost", [
-			{"/chunked_response", http_chunked, []},
-			{"/headers/dupe", http_handler,
-				[{headers, #{<<"connection">> => <<"close">>}}]},
-			{"/set_resp/header", http_set_resp,
-				[{headers, #{<<"vary">> => <<"Accept">>}}]},
-			{"/set_resp/overwrite", http_set_resp,
-				[{headers, #{<<"server">> => <<"DesireDrive/1.0">>}}]},
-			{"/set_resp/body", http_set_resp,
-				[{body, <<"A flameless dance does not equal a cycle">>}]},
-			{"/handler_errors", http_errors, []},
-			{"/echo/body", http_echo_body, []},
-			{"/param_all", rest_param_all, []},
-			{"/bad_accept", rest_simple_resource, []},
-			{"/bad_content_type", rest_patch_resource, []},
-			{"/simple", rest_simple_resource, []},
-			{"/forbidden_post", rest_forbidden_resource, [true]},
-			{"/simple_post", rest_forbidden_resource, [false]},
-			{"/missing_get_callbacks", rest_missing_callbacks, []},
-			{"/missing_put_callbacks", rest_missing_callbacks, []},
-			{"/nodelete", rest_nodelete_resource, []},
-			{"/post_charset", rest_post_charset_resource, []},
-			{"/postonly", rest_postonly_resource, []},
-			{"/patch", rest_patch_resource, []},
-			{"/resetags", rest_resource_etags, []},
-			{"/rest_expires", rest_expires, []},
-			{"/rest_expires_binary", rest_expires_binary, []},
-			{"/rest_empty_resource", rest_empty_resource, []},
-			{"/loop_stream_recv", http_loop_stream_recv, []},
-			{"/", http_handler, []}
-		]}
-	]).
-
-%% Convenience functions.
-
-do_raw(Data, Config) ->
-	Client = raw_open(Config),
-	ok = raw_send(Client, Data),
-	case catch raw_recv_head(Client) of
-		{'EXIT', _} -> closed;
-		Resp -> element(2, cow_http:parse_status_line(Resp))
-	end.
-
-do_get(Path, Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, Path),
-	{response, _, Status, _} = gun:await(ConnPid, Ref),
-	gun:close(ConnPid),
-	Status.
-
-%% Tests.
-
-check_raw_status(Config) ->
-	Huge = [$0 || _ <- lists:seq(1, 5000)],
-	HugeCookie = lists:flatten(["whatever_man_biiiiiiiiiiiig_cookie_me_want_77="
-		"Wed Apr 06 2011 10:38:52 GMT-0500 (CDT)" || _ <- lists:seq(1, 40)]),
-	ResponsePacket =
-"HTTP/1.0 302 Found\r
-Location: http://www.google.co.il/\r
-Cache-Control: private\r
-Content-Type: text/html; charset=UTF-8\r
-Set-Cookie: PREF=ID=568f67013d4a7afa:FF=0:TM=1323014101:LM=1323014101:S=XqctDWC65MzKT0zC; expires=Tue, 03-Dec-2013 15:55:01 GMT; path=/; domain=.google.com\r
-Date: Sun, 04 Dec 2011 15:55:01 GMT\r
-Server: gws\r
-Content-Length: 221\r
-X-XSS-Protection: 1; mode=block\r
-X-Frame-Options: SAMEORIGIN\r
-\r
-<HTML><HEAD><meta http-equiv=\"content-type\" content=\"text/html;charset=utf-8\">
-<TITLE>302 Moved</TITLE></HEAD><BODY>
-<H1>302 Moved</H1>
-The document has moved
-<A HREF=\"http://www.google.co.il/\">here</A>.
-</BODY></HTML>",
-	Tests = [
-		{200, ["GET / HTTP/1.0\r\nHost: localhost\r\n"
-			"Set-Cookie: ", HugeCookie, "\r\n\r\n"]},
-		{200, "\r\n\r\n\r\n\r\n\r\nGET / HTTP/1.1\r\nHost: localhost\r\n\r\n"},
-		{200, "GET http://proxy/ HTTP/1.1\r\nHost: localhost\r\n\r\n"},
-		{400, "\n"},
-		{400, "Garbage\r\n\r\n"},
-		{400, "\r\n\r\n\r\n\r\n\r\n\r\n"},
-		{400, " / HTTP/1.1\r\nHost: localhost\r\n\r\n"},
-		{400, "GET  HTTP/1.1\r\nHost: localhost\r\n\r\n"},
-		{400, "GET / HTTP/1.1\r\nHost: ninenines.eu\r\n\r\n"},
-		{400, "GET http://proxy/ HTTP/1.1\r\n\r\n"},
-		{400, "GET / HTTP/1.1\r\nHost: localhost:bad_port\r\n\r\n"},
-		{400, ResponsePacket},
-		{408, "GET / HTTP/1.1\r\n"},
-		{408, "GET / HTTP/1.1\r\nHost: localhost"},
-		{408, "GET / HTTP/1.1\r\nHost: localhost\r\n"},
-		{408, "GET / HTTP/1.1\r\nHost: localhost\r\n\r"},
-		{closed, Huge},
-		{431, "GET / HTTP/1.1\r\n" ++ Huge},
-		{505, "GET / HTTP/1.2\r\nHost: localhost\r\n\r\n"},
-		{closed, ""},
-		{closed, "\r\n"},
-		{closed, "\r\n\r\n"},
-		{closed, "GET / HTTP/1.1"}
-	],
-	_ = [{Status, Packet} = begin
-		Ret = do_raw(Packet, Config),
-		{Ret, Packet}
-	end || {Status, Packet} <- Tests],
-	ok.
-
-check_status(Config) ->
-	Tests = [
-		{200, "/"},
-		{200, "/simple"},
-		{404, "/not/found"},
-		{500, "/handler_errors?case=init_before_reply"}
-	],
-	_ = [{Status, URL} = begin
-		Ret = do_get(URL, Config),
-		{Ret, URL}
-	end || {Status, URL} <- Tests].
-
-%% Check if sending requests whose size is around the MTU breaks something.
-echo_body(Config) ->
-	MTU = ct_helper:get_loopback_mtu(),
-	_ = [begin
-		Body = list_to_binary(lists:duplicate(Size, $a)),
-		ConnPid = gun_open(Config),
-		Ref = gun:post(ConnPid, "/echo/body", [], Body),
-		{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-		{ok, Body} = gun:await_body(ConnPid, Ref)
-	end || Size <- lists:seq(MTU - 500, MTU)],
-	ok.
-
-%% Check if sending request whose size is bigger than 1000000 bytes causes 413
-echo_body_max_length(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/echo/body", [], << 0:10000000/unit:8 >>),
-	{response, nofin, 413, _} = gun:await(ConnPid, Ref),
-	ok.
-
-error_init_after_reply(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/handler_errors?case=init_after_reply"),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	ok.
-
-headers_dupe(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/headers/dupe"),
-	{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
-	%% Ensure that only one connection header was received.
-	[<<"close">>] = [V || {Name, V} <- Headers, Name =:= <<"connection">>],
-	gun_down(ConnPid).
-
-http10_chunkless(Config) ->
-	ConnPid = gun_open(Config, #{http_opts => #{version => 'HTTP/1.0'}}),
-	Ref = gun:get(ConnPid, "/chunked_response"),
-	{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
-	false = lists:keyfind(<<"transfer-encoding">>, 1, Headers),
-	{ok, <<"chunked_handler\r\nworks fine!">>} = gun:await_body(ConnPid, Ref),
-	gun_down(ConnPid).
-
-http10_hostless(Config) ->
-	Name = http10_hostless,
-	Port10 = config(port, Config) + 10,
-	{Transport, Protocol} = case config(type, Config) of
-		tcp -> {ranch_tcp, cowboy_clear};
-		ssl -> {ranch_ssl, cowboy_tls}
-	end,
-	ranch:start_listener(Name, 5, Transport,
-		config(opts, Config) ++ [{port, Port10}],
-		Protocol, #{
-			env =>#{dispatch => cowboy_router:compile([
-				{'_', [{"/http1.0/hostless", http_handler, []}]}])},
-			max_keepalive => 50,
-			timeout => 500
-	}),
-	200 = do_raw("GET /http1.0/hostless HTTP/1.0\r\n\r\n",
-		[{port, Port10}|Config]),
-	cowboy:stop_listener(http10_hostless).
-
-http10_keepalive_default(Config) ->
-	Normal = "GET / HTTP/1.0\r\nhost: localhost\r\n\r\n",
-	Client = raw_open(Config),
-	ok = raw_send(Client, Normal),
-	case catch raw_recv_head(Client) of
-		{'EXIT', _} -> error(closed);
-		Data ->
-			%% Cowboy always advertises itself as HTTP/1.1.
-			{'HTTP/1.1', 200, _, Rest} = cow_http:parse_status_line(Data),
-			{Headers, _} = cow_http:parse_headers(Rest),
-			{_, <<"close">>} = lists:keyfind(<<"connection">>, 1, Headers)
-	end,
-	ok = raw_send(Client, Normal),
-	case catch raw_recv_head(Client) of
-		{'EXIT', _} -> closed;
-		_ -> error(not_closed)
-	end.
-
-http10_keepalive_forced(Config) ->
-	Keepalive = "GET / HTTP/1.0\r\nhost: localhost\r\nConnection: keep-alive\r\n\r\n",
-	Client = raw_open(Config),
-	ok = raw_send(Client, Keepalive),
-	case catch raw_recv_head(Client) of
-		{'EXIT', _} -> error(closed);
-		Data ->
-			%% Cowboy always advertises itself as HTTP/1.1.
-			{'HTTP/1.1', 200, _, Rest} = cow_http:parse_status_line(Data),
-			{Headers, _} = cow_http:parse_headers(Rest),
-			{_, <<"keep-alive">>} = lists:keyfind(<<"connection">>, 1, Headers)
-	end,
-	ok = raw_send(Client, Keepalive),
-	case catch raw_recv_head(Client) of
-		{'EXIT', Err} -> error({closed, Err});
-		_ -> ok
-	end.
-
-keepalive_nl(Config) ->
-	ConnPid = gun_open(Config),
-	Refs = [begin
-		Ref = gun:get(ConnPid, "/", [{<<"connection">>, <<"keep-alive">>}]),
-		gun:dbg_send_raw(ConnPid, <<"\r\n">>),
-		Ref
-	end || _ <- lists:seq(1, 10)],
-	_ = [begin
-		{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
-		false = lists:keymember(<<"connection">>, 1, Headers)
-	end || Ref <- Refs],
-	ok.
-
-keepalive_stream_loop(Config) ->
-	ConnPid = gun_open(Config),
-	Refs = [begin
-		Ref = gun:post(ConnPid, "/loop_stream_recv",
-			[{<<"content-type">>, <<"application/octet-stream">>}]),
-		_ = [gun:data(ConnPid, Ref, nofin, << ID:32 >>)
-			|| ID <- lists:seq(1, 250)],
-		gun:data(ConnPid, Ref, fin, <<>>),
-		Ref
-	end || _ <- lists:seq(1, 10)],
-	_ = [begin
-		{response, fin, 200, _} = gun:await(ConnPid, Ref)
-	end || Ref <- Refs],
-	ok.
-
-do_nc(Config, Input) ->
-	Cat = os:find_executable("cat"),
-	Nc = os:find_executable("nc"),
-	case {Cat, Nc} of
-		{false, _} ->
-			{skip, {notfound, cat}};
-		{_, false} ->
-			{skip, {notfound, nc}};
-		_Good ->
-			%% Throw garbage at the server then check if it's still up.
-			StrPort = integer_to_list(config(port, Config)),
-			[os:cmd("cat " ++ Input ++ " | nc localhost " ++ StrPort)
-				|| _ <- lists:seq(1, 100)],
-			200 = do_get("/", Config)
-	end.
-
-nc_rand(Config) ->
-	do_nc(Config, "/dev/urandom").
-
-nc_zero(Config) ->
-	do_nc(Config, "/dev/zero").
-
-parse_host(Config) ->
-	ConnPid = gun_open(Config),
-	Tests = [
-		{<<"example.org:8080">>, <<"example.org\n8080">>},
-		{<<"example.org">>, <<"example.org\n80">>},
-		{<<"192.0.2.1:8080">>, <<"192.0.2.1\n8080">>},
-		{<<"192.0.2.1">>, <<"192.0.2.1\n80">>},
-		{<<"[2001:db8::1]:8080">>, <<"[2001:db8::1]\n8080">>},
-		{<<"[2001:db8::1]">>, <<"[2001:db8::1]\n80">>},
-		{<<"[::ffff:192.0.2.1]:8080">>, <<"[::ffff:192.0.2.1]\n8080">>},
-		{<<"[::ffff:192.0.2.1]">>, <<"[::ffff:192.0.2.1]\n80">>}
-	],
-	[begin
-		Ref = gun:get(ConnPid, "/req_attr?attr=host_and_port",
-			[{<<"host">>, Host}]),
-		{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-		{ok, Body} = gun:await_body(ConnPid, Ref)
-	end || {Host, Body} <- Tests],
-	ok.
-
-rest_param_all(Config) ->
-	ConnPid = gun_open(Config),
-	%% Accept without param.
-	Ref1 = gun:get(ConnPid, "/param_all",
-		[{<<"accept">>, <<"text/plain">>}]),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref1),
-	{ok, <<"[]">>} = gun:await_body(ConnPid, Ref1),
-	%% Accept with param.
-	Ref2 = gun:get(ConnPid, "/param_all",
-		[{<<"accept">>, <<"text/plain;level=1">>}]),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref2),
-	{ok, <<"level=1">>} = gun:await_body(ConnPid, Ref2),
-	%% Accept with param and quality.
-	Ref3 = gun:get(ConnPid, "/param_all",
-		[{<<"accept">>, <<"text/plain;level=1;q=0.8, text/plain;level=2;q=0.5">>}]),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref3),
-	{ok, <<"level=1">>} = gun:await_body(ConnPid, Ref3),
-	Ref4 = gun:get(ConnPid, "/param_all",
-		[{<<"accept">>, <<"text/plain;level=1;q=0.5, text/plain;level=2;q=0.8">>}]),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref4),
-	{ok, <<"level=2">>} = gun:await_body(ConnPid, Ref4),
-	%% Without Accept.
-	Ref5 = gun:get(ConnPid, "/param_all"),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref5),
-	{ok, <<"'*'">>} = gun:await_body(ConnPid, Ref5),
-	%% Content-Type without param.
-	Ref6 = gun:put(ConnPid, "/param_all",
-		[{<<"content-type">>, <<"text/plain">>}]),
-	gun:data(ConnPid, Ref6, fin, "Hello world!"),
-	{response, fin, 204, _} = gun:await(ConnPid, Ref6),
-	%% Content-Type with param.
-	Ref7 = gun:put(ConnPid, "/param_all",
-		[{<<"content-type">>, <<"text/plain; charset=utf-8">>}]),
-	gun:data(ConnPid, Ref7, fin, "Hello world!"),
-	{response, fin, 204, _} = gun:await(ConnPid, Ref7),
-	ok.
-
-rest_bad_accept(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/bad_accept",
-		[{<<"accept">>, <<"1">>}]),
-	{response, fin, 400, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_bad_content_type(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:patch(ConnPid, "/bad_content_type",
-		[{<<"content-type">>, <<"text/plain, text/html">>}], <<"Whatever">>),
-	{response, fin, 415, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_expires(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/rest_expires"),
-	{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
-	{_, Expires} = lists:keyfind(<<"expires">>, 1, Headers),
-	{_, LastModified} = lists:keyfind(<<"last-modified">>, 1, Headers),
-	Expires = LastModified = <<"Fri, 21 Sep 2012 22:36:14 GMT">>,
-	ok.
-
-rest_expires_binary(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/rest_expires_binary"),
-	{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
-	{_, <<"0">>} = lists:keyfind(<<"expires">>, 1, Headers),
-	ok.
-
-rest_last_modified_undefined(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/simple",
-		[{<<"if-modified-since">>, <<"Fri, 21 Sep 2012 22:36:14 GMT">>}]),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_keepalive(Config) ->
-	ConnPid = gun_open(Config),
-	Refs = [gun:get(ConnPid, "/simple") || _ <- lists:seq(1, 10)],
-	_ = [begin
-		{response, nofin, 200, Headers} =  gun:await(ConnPid, Ref),
-		false = lists:keymember(<<"connection">>, 1, Headers)
-	end || Ref <- Refs],
-	ok.
-
-rest_keepalive_post(Config) ->
-	ConnPid = gun_open(Config),
-	Refs = [begin
-		Ref1 = gun:post(ConnPid, "/forbidden_post", [
-			{<<"content-type">>, <<"text/plain">>},
-			{<<"content-length">>, <<"12">>}
-		]),
-		gun:data(ConnPid, Ref1, fin, "Hello world!"),
-		Ref2 = gun:post(ConnPid, "/simple_post", [
-			{<<"content-type">>, <<"text/plain">>},
-			{<<"content-length">>, <<"12">>}
-		]),
-		gun:data(ConnPid, Ref2, fin, "Hello world!"),
-		{Ref1, Ref2}
-	end || _ <- lists:seq(1, 5)],
-	_ = [begin
-		{response, fin, 403, Headers1} = gun:await(ConnPid, Ref1),
-		false = lists:keymember(<<"connection">>, 1, Headers1),
-		{response, fin, 303, Headers2} = gun:await(ConnPid, Ref2),
-		false = lists:keymember(<<"connection">>, 1, Headers2)
-	end || {Ref1, Ref2} <- Refs],
-	ok.
-
-rest_missing_get_callbacks(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/missing_get_callbacks"),
-	{response, fin, 500, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_missing_put_callbacks(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:put(ConnPid, "/missing_put_callbacks",
-		[{<<"content-type">>, <<"application/json">>}], <<"{}">>),
-	{response, fin, 500, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_nodelete(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:delete(ConnPid, "/nodelete"),
-	{response, fin, 500, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_options_default(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:options(ConnPid, "/rest_empty_resource"),
-	{response, fin, 200, Headers} = gun:await(ConnPid, Ref),
-	{_, <<"HEAD, GET, OPTIONS">>} = lists:keyfind(<<"allow">>, 1, Headers),
-	ok.
-
-rest_patch(Config) ->
-	Tests = [
-		{204, [{<<"content-type">>, <<"text/plain">>}], <<"whatever">>},
-		{400, [{<<"content-type">>, <<"text/plain">>}], <<"false">>},
-		{400, [{<<"content-type">>, <<"text/plain">>}], <<"stop">>},
-		{415, [{<<"content-type">>, <<"application/json">>}], <<"bad_content_type">>}
-	],
-	ConnPid = gun_open(Config),
-	_ = [begin
-		Ref = gun:patch(ConnPid, "/patch", Headers, Body),
-		{response, fin, Status, _} = gun:await(ConnPid, Ref)
-	end || {Status, Headers, Body} <- Tests],
-	ok.
-
-rest_post_charset(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/post_charset",
-		[{<<"content-type">>, <<"text/plain;charset=UTF-8">>}], "12345"),
-	{response, fin, 204, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_postonly(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/postonly",
-		[{<<"content-type">>, <<"text/plain">>}], "12345"),
-	{response, fin, 204, _} = gun:await(ConnPid, Ref),
-	ok.
-
-rest_resource_get_etag(Config, Type) ->
-	rest_resource_get_etag(Config, Type, []).
-
-rest_resource_get_etag(Config, Type, Headers) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/resetags?type=" ++ Type, Headers),
-	{response, _, Status, RespHeaders} = gun:await(ConnPid, Ref),
-	case lists:keyfind(<<"etag">>, 1, RespHeaders) of
-		false -> {Status, false};
-		{<<"etag">>, ETag} -> {Status, ETag}
-	end.
-
-rest_resource_etags(Config) ->
-	Tests = [
-		{200, <<"W/\"etag-header-value\"">>, "tuple-weak"},
-		{200, <<"\"etag-header-value\"">>, "tuple-strong"},
-		{200, <<"W/\"etag-header-value\"">>, "binary-weak-quoted"},
-		{200, <<"\"etag-header-value\"">>, "binary-strong-quoted"},
-		{500, false, "binary-strong-unquoted"},
-		{500, false, "binary-weak-unquoted"}
-	],
-	_ = [{Status, ETag, Type} = begin
-		{Ret, RespETag} = rest_resource_get_etag(Config, Type),
-		{Ret, RespETag, Type}
-	end || {Status, ETag, Type} <- Tests].
-
-rest_resource_etags_if_none_match(Config) ->
-	Tests = [
-		{304, <<"W/\"etag-header-value\"">>, "tuple-weak"},
-		{304, <<"\"etag-header-value\"">>, "tuple-strong"},
-		{304, <<"W/\"etag-header-value\"">>, "binary-weak-quoted"},
-		{304, <<"\"etag-header-value\"">>, "binary-strong-quoted"}
-	],
-	_ = [{Status, Type} = begin
-		{Ret, _} = rest_resource_get_etag(Config, Type,
-			[{<<"if-none-match">>, ETag}]),
-		{Ret, Type}
-	end || {Status, ETag, Type} <- Tests].
-
-set_env_dispatch(Config) ->
-	ConnPid1 = gun_open(Config),
-	Ref1 = gun:get(ConnPid1, "/"),
-	{response, fin, 400, _} = gun:await(ConnPid1, Ref1),
-	ok = cowboy:set_env(set_env, dispatch,
-		cowboy_router:compile([{'_', [{"/", http_handler, []}]}])),
-	ConnPid2 = gun_open(Config),
-	Ref2 = gun:get(ConnPid2, "/"),
-	{response, nofin, 200, _} = gun:await(ConnPid2, Ref2),
-	ok.
-
-path_allow_colon(_Config) ->
-	cowboy_router:compile([{'_', [{"/foo/bar:blah", http_handler, []}]}]),
-	ok.
-
-set_resp_body(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/set_resp/body"),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	{ok, <<"A flameless dance does not equal a cycle">>}
-		= gun:await_body(ConnPid, Ref),
-	ok.
-
-set_resp_header(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/set_resp/header"),
-	{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
-	{_, <<"Accept">>} = lists:keyfind(<<"vary">>, 1, Headers),
-	{_, _} = lists:keyfind(<<"set-cookie">>, 1, Headers),
-	ok.
-
-set_resp_overwrite(Config) ->
-	ConnPid = gun_open(Config),
-	Ref = gun:get(ConnPid, "/set_resp/overwrite"),
-	{response, nofin, 200, Headers} = gun:await(ConnPid, Ref),
-	{_, <<"DesireDrive/1.0">>} = lists:keyfind(<<"server">>, 1, Headers),
-	ok.
-
-slowloris(Config) ->
-	Client = raw_open(Config),
-	try
-		[begin
-			ok = raw_send(Client, [C]),
-			receive after 250 -> ok end
-		end || C <- "GET / HTTP/1.1\r\nHost: localhost\r\n"
-			"User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US)\r\n"
-			"Cookie: name=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r\n\r\n"],
-		error(failure)
-	catch error:{badmatch, _} ->
-		ok
-	end.
-
-slowloris2(Config) ->
-	Client = raw_open(Config),
-	ok = raw_send(Client, "GET / HTTP/1.1\r\n"),
-	receive after 300 -> ok end,
-	ok = raw_send(Client, "Host: localhost\r\n"),
-	receive after 300 -> ok end,
-	Data = raw_recv_head(Client),
-	{_, 408, _, _} = cow_http:parse_status_line(Data),
-	ok.
-
-te_chunked(Config) ->
-	Body = list_to_binary(io_lib:format("~p", [lists:seq(1, 100)])),
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/echo/body", [{<<"content-type">>, <<"text/plain">>}]),
-	gun:data(ConnPid, Ref, fin, Body),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	{ok, Body} = gun:await_body(ConnPid, Ref),
-	ok.
-
-do_body_to_chunks(_, <<>>, Acc) ->
-	lists:reverse([<<"0\r\n\r\n">>|Acc]);
-do_body_to_chunks(ChunkSize, Body, Acc) ->
-	BodySize = byte_size(Body),
-	ChunkSize2 = case BodySize < ChunkSize of
-		true -> BodySize;
-		false -> ChunkSize
-	end,
-	<< Chunk:ChunkSize2/binary, Rest/binary >> = Body,
-	ChunkSizeBin = integer_to_binary(ChunkSize2, 16),
-	do_body_to_chunks(ChunkSize, Rest,
-		[<< ChunkSizeBin/binary, "\r\n", Chunk/binary, "\r\n" >>|Acc]).
-
-te_chunked_chopped(Config) ->
-	Body = list_to_binary(io_lib:format("~p", [lists:seq(1, 100)])),
-	Body2 = iolist_to_binary(do_body_to_chunks(50, Body, [])),
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/echo/body",
-		[{<<"content-type">>, <<"text/plain">>}]),
-	_ = [begin
-		ok = gun:dbg_send_raw(ConnPid, << C >>),
-		receive after 10 -> ok end
-	end || << C >> <= Body2],
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	{ok, Body} = gun:await_body(ConnPid, Ref),
-	ok.
-
-te_chunked_delayed(Config) ->
-	Body = list_to_binary(io_lib:format("~p", [lists:seq(1, 100)])),
-	Chunks = do_body_to_chunks(50, Body, []),
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/echo/body",
-		[{<<"content-type">>, <<"text/plain">>}]),
-	_ = [begin
-		ok = gun:dbg_send_raw(ConnPid, Chunk),
-		receive after 10 -> ok end
-	end || Chunk <- Chunks],
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	{ok, Body} = gun:await_body(ConnPid, Ref),
-	ok.
-
-te_chunked_split_body(Config) ->
-	Body = list_to_binary(io_lib:format("~p", [lists:seq(1, 100)])),
-	Chunks = do_body_to_chunks(50, Body, []),
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/echo/body",
-		[{<<"content-type">>, <<"text/plain">>}]),
-	_ = [begin
-		case Chunk of
-			<<"0\r\n\r\n">> ->
-				ok = gun:dbg_send_raw(ConnPid, Chunk);
-			_ ->
-				[Size, ChunkBody, <<>>] =
-					binary:split(Chunk, [<<"\r\n">>], [global]),
-				PartASize = random:uniform(byte_size(ChunkBody)),
-				<<PartA:PartASize/binary, PartB/binary>> = ChunkBody,
-				ok = gun:dbg_send_raw(ConnPid, [Size, <<"\r\n">>, PartA]),
-				receive after 10 -> ok end,
-				ok = gun:dbg_send_raw(ConnPid, [PartB, <<"\r\n">>])
-		end
-	end || Chunk <- Chunks],
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	{ok, Body} = gun:await_body(ConnPid, Ref),
-	ok.
-
-te_chunked_split_crlf(Config) ->
-	Body = list_to_binary(io_lib:format("~p", [lists:seq(1, 100)])),
-	Chunks = do_body_to_chunks(50, Body, []),
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/echo/body",
-		[{<<"content-type">>, <<"text/plain">>}]),
-	_ = [begin
-		%% Split in the newline just before the end of the chunk.
-		Len = byte_size(Chunk) - (random:uniform(2) - 1),
-		<< Chunk2:Len/binary, End/binary >> = Chunk,
-		ok = gun:dbg_send_raw(ConnPid, Chunk2),
-		receive after 10 -> ok end,
-		ok = gun:dbg_send_raw(ConnPid, End)
-	end || Chunk <- Chunks],
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	{ok, Body} = gun:await_body(ConnPid, Ref),
-	ok.
-
-te_identity(Config) ->
-	Body = list_to_binary(io_lib:format("~p", [lists:seq(1, 100)])),
-	ConnPid = gun_open(Config),
-	Ref = gun:post(ConnPid, "/echo/body", [], Body),
-	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
-	{ok, Body} = gun:await_body(ConnPid, Ref),
-	ok.
-
-request_timeout_infinity(Config) ->
-	Pid = config(pid, Config),
-	Ref = erlang:monitor(process, Pid),
-	_ = gun_open(Config),
-	receive
-		{'DOWN', Ref, process, Pid, Reason} ->
-			error(Reason)
-	after 1000 ->
-		ok
-	end.
-
-idle_timeout_infinity(Config) ->
-	Pid = config(pid, Config),
-	Ref = erlang:monitor(process, Pid),
-	ConnPid = gun_open(Config),
-	gun:post(ConnPid, "/echo/body", [], <<"TEST">>),
 	receive
-		{'DOWN', Ref, process, Pid, Reason} ->
-			error(Reason)
-	after 1000 ->
-		ok
+		{Self, Events} ->
+			switch_protocol_flush_h:validate(Events)
 	end.
-- 
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