aboutsummaryrefslogtreecommitdiffstats
path: root/test/examples_SUITE.erl
blob: 40a8b9c9d5e66906b649c7a0b24268fde1c769d7 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
%% Copyright (c) 2016, 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(examples_SUITE).
-compile(export_all).

-import(ct_helper, [config/2]).
-import(ct_helper, [doc/1]).
-import(cowboy_test, [gun_open/1]).

%% ct.

all() ->
	ct_helper:all(?MODULE).

%% Remove environment variables inherited from Erlang.mk.
init_per_suite(Config) ->
	os:unsetenv("ERLANG_MK_TMP"),
	os:unsetenv("APPS_DIR"),
	os:unsetenv("DEPS_DIR"),
	os:unsetenv("ERL_LIBS"),
	Config.

end_per_suite(_) ->
	ok.

%% Compile, start and stop releases.

do_get_paths(Example0) ->
	Example = atom_to_list(Example0),
	{ok, CWD} = file:get_cwd(),
	Dir = CWD ++ "/../../examples/" ++ Example,
	Rel = Dir ++ "/_rel/" ++ Example ++ "_example/bin/" ++ Example ++ "_example",
	Log = Dir ++ "/_rel/" ++ Example ++ "_example/log/erlang.log.1",
	{Dir, Rel, Log}.

do_compile_and_start(Example) ->
	{Dir, Rel, _} = do_get_paths(Example),
	%% TERM=dumb disables relx coloring.
	ct:log("~s~n", [os:cmd("cd " ++ Dir ++ " && make distclean && TERM=dumb make all")]),
	ct:log("~s~n", [os:cmd(Rel ++ " stop")]),
	ct:log("~s~n", [os:cmd(Rel ++ " start")]),
	timer:sleep(2000),
	ok.

do_stop(Example) ->
	{_, Rel, Log} = do_get_paths(Example),
	ct:log("~s~n", [os:cmd(Rel ++ " stop")]),
	ct:log("~s~n", [element(2, file:read_file(Log))]),
	ok.

%% Fetch a response.

do_get(Transport, Protocol, Path, Config) ->
	do_get(Transport, Protocol, Path, [], Config).

do_get(Transport, Protocol, Path, ReqHeaders, Config) ->
	Port = case Transport of
		tcp -> 8080;
		ssl -> 8443
	end,
	ConnPid = gun_open([{port, Port}, {type, Transport}, {protocol, Protocol}|Config]),
	Ref = gun:get(ConnPid, Path, ReqHeaders),
	case gun:await(ConnPid, Ref) of
		{response, nofin, Status, RespHeaders} ->
			{ok, Body} = gun:await_body(ConnPid, Ref),
			{Status, RespHeaders, Body};
		{response, fin, Status, RespHeaders} ->
			{Status, RespHeaders, <<>>}
	end.

%% TCP and SSL Hello World.

hello_world(Config) ->
	doc("Hello World example."),
	try
		do_compile_and_start(hello_world),
		do_hello_world(tcp, http, Config),
		do_hello_world(tcp, http2, Config)
	after
		do_stop(hello_world)
	end.

ssl_hello_world(Config) ->
	doc("SSL Hello World example."),
	try
		do_compile_and_start(ssl_hello_world),
		do_hello_world(ssl, http, Config),
		do_hello_world(ssl, http2, Config)
	after
		do_stop(ssl_hello_world)
	end.

do_hello_world(Transport, Protocol, Config) ->
	{200, _, <<"Hello world!">>} = do_get(Transport, Protocol, "/", Config),
	ok.

%% Chunked Hello World.

chunked_hello_world(Config) ->
	doc("Chunked Hello World example."),
	try
		do_compile_and_start(chunked_hello_world),
		do_chunked_hello_world(tcp, http, Config),
		do_chunked_hello_world(tcp, http2, Config)
	after
		do_stop(chunked_hello_world)
	end.

do_chunked_hello_world(Transport, Protocol, Config) ->
	ConnPid = gun_open([{port, 8080}, {type, Transport}, {protocol, Protocol}|Config]),
	Ref = gun:get(ConnPid, "/"),
	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
	%% We expect to receive a chunk every second, three total.
	{data, nofin, <<"Hello\r\n">>} = gun:await(ConnPid, Ref, 2000),
	{data, nofin, <<"World\r\n">>} = gun:await(ConnPid, Ref, 2000),
	{data, IsFin, <<"Chunked!\r\n">>} = gun:await(ConnPid, Ref, 2000),
	%% We may get an extra empty chunk (last chunk for HTTP/1.1,
	%% empty DATA frame with the FIN bit set for HTTP/2).
	case IsFin of
		fin -> ok;
		nofin ->
			{data, fin, <<>>} = gun:await(ConnPid, Ref, 500),
			ok
	end.

%% Echo GET.

echo_get(Config) ->
	doc("GET parameter echo example."),
	try
		do_compile_and_start(echo_get),
		do_echo_get(tcp, http, Config),
		do_echo_get(tcp, http2, Config)
	after
		do_stop(echo_get)
	end.

do_echo_get(Transport, Protocol, Config) ->
	{200, _, <<"this is fun">>} = do_get(Transport, Protocol, "/?echo=this+is+fun", Config),
	ok.

%% Echo POST.

echo_post(Config) ->
	doc("POST parameter echo example."),
	try
		do_compile_and_start(echo_post),
		do_echo_post(tcp, http, Config),
		do_echo_post(tcp, http2, Config)
	after
		do_stop(echo_post)
	end.

do_echo_post(Transport, Protocol, Config) ->
	ConnPid = gun_open([{port, 8080}, {type, Transport}, {protocol, Protocol}|Config]),
	Ref = gun:post(ConnPid, "/", [
		{<<"content-type">>, <<"application/octet-stream">>}
	], <<"echo=this+is+fun">>),
	{response, nofin, 200, _} = gun:await(ConnPid, Ref),
	{ok, <<"this is fun">>} = gun:await_body(ConnPid, Ref),
	ok.

%% REST Hello World.

rest_hello_world(Config) ->
	doc("REST Hello World example."),
	try
		do_compile_and_start(rest_hello_world),
		do_rest_hello_world(tcp, http, Config),
		do_rest_hello_world(tcp, http2, Config)
	after
		do_stop(rest_hello_world)
	end.

do_rest_hello_world(Transport, Protocol, Config) ->
	<< "<html>", _/bits >> = do_rest_get(Transport, Protocol, "/", undefined, Config),
	<< "REST Hello World as text!" >> = do_rest_get(Transport, Protocol, "/", <<"text/plain">>, Config),
	<< "{\"rest\": \"Hello World!\"}" >> = do_rest_get(Transport, Protocol, "/", <<"application/json">>, Config),
	not_acceptable = do_rest_get(Transport, Protocol, "/", <<"text/css">>, Config),
	ok.

do_rest_get(Transport, Protocol, Path, Accept, Config) ->
	ReqHeaders = case Accept of
		undefined -> [];
		_ -> [{<<"accept">>, Accept}]
	end,
	case do_get(Transport, Protocol, Path, ReqHeaders, Config) of
		{200, RespHeaders, Body} ->
			Accept = case Accept of
				undefined -> undefined;
				_ ->
					{_, ContentType} = lists:keyfind(<<"content-type">>, 1, RespHeaders),
					ContentType
			end,
			Body;
		{406, _, _} ->
			not_acceptable
	end.

%% File server.

file_server(Config) ->
	doc("File server example with directory listing."),
	try
		do_compile_and_start(file_server),
		do_file_server(tcp, http, Config),
		do_file_server(tcp, http2, Config)
	after
		do_stop(file_server)
	end.

do_file_server(Transport, Protocol, Config) ->
	%% Directory.
	{200, DirHeaders, <<"<!DOCTYPE html><html>", _/bits >>} = do_get(Transport, Protocol, "/", Config),
	{_, <<"text/html">>} = lists:keyfind(<<"content-type">>, 1, DirHeaders),
	_ = do_rest_get(Transport, Protocol, "/", <<"application/json">>, Config),
	%% Files.
	{200, _, _} = do_get(Transport, Protocol, "/small.mp4", Config),
	{200, _, _} = do_get(Transport, Protocol, "/small.ogv", Config),
	{200, _, _} = do_get(Transport, Protocol, "/test.txt", Config),
	{200, _, _} = do_get(Transport, Protocol, "/video.html", Config),
	ok.