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+%% Copyright (c) 2011, Magnus Klaar <[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(autobahn_SUITE).
+
+%% This CT suite reuses the websocket server test suite from the Autobahn
+%% project. The Autobahn project is a websocket implementation for Python.
+%% Given that we don't expect to find the packages and tools to properly
+%% set up and run such a test on a system used primarily for Erlang devlopment
+%% this test suite is not included in the default 'ct' target in the makefile.
+
+-include_lib("common_test/include/ct.hrl").
+
+-export([all/0, groups/0, init_per_suite/1, end_per_suite/1,
+	init_per_group/2, end_per_group/2]). %% ct.
+-export([run_tests/1]). %% autobahn.
+
+%% ct.
+
+all() ->
+	[{group, autobahn}].
+
+groups() ->
+	BaseTests = [run_tests],
+	[{autobahn, [], BaseTests}].
+
+init_per_suite(Config) ->
+	application:start(inets),
+	application:start(cowboy),
+	%% /tmp must be used as the parent directory for the virtualenv because
+	%% the directory names used in CT are so long that the interpreter path
+	%% in the scripts generated by virtualenv get so long that the system
+	%% refuses to execute them.
+	EnvPath = "/tmp/cowboy_autobahn_env",
+	os:putenv("AB_TESTS_ENV", EnvPath),
+	os:putenv("AB_TESTS_PRIV", ?config(priv_dir, Config)),
+	BinPath = filename:join(?config(data_dir, Config), "test.py"),
+	Stdout = os:cmd(BinPath ++ " setup"),
+	ct:log("~s~n", [Stdout]),
+	case string:str(Stdout, "AB-TESTS-SETUP-OK") of
+		0 -> erlang:error(failed);
+		_ -> [{env_path, EnvPath},{bin_path,BinPath}|Config]
+	end.
+
+end_per_suite(_Config) ->
+	os:cmd("deactivate"),
+	application:stop(cowboy),
+	application:stop(inets),
+	ok.
+
+init_per_group(autobahn, Config) ->
+	Port = 33080,
+	cowboy:start_listener(autobahn, 100,
+		cowboy_tcp_transport, [{port, Port}],
+		cowboy_http_protocol, [{dispatch, init_dispatch()}]
+	),
+	[{port, Port}|Config].
+
+end_per_group(Listener, _Config) ->
+	cowboy:stop_listener(Listener),
+	ok.
+
+%% Dispatch configuration.
+
+init_dispatch() ->
+	[{[<<"localhost">>], [
+		{[<<"echo">>], websocket_echo_handler, []}]}].
+
+%% autobahn cases
+
+run_tests(Config) ->
+	PrivDir = ?config(priv_dir, Config),
+	IndexFile = filename:join([PrivDir, "reports", "servers", "index.html"]),
+	ct:log("<h2><a href=\"~s\">Full Test Results Report</a></h2>~n", [IndexFile]),
+	BinPath = ?config(bin_path, Config),
+	Stdout = os:cmd(BinPath ++ " test"),
+	ct:log("~s~n", [Stdout]),
+	case string:str(Stdout, "AB-TESTS-TEST-OK") of
+		0 -> erlang:error(failed);
+		_ -> ok
+	end,
+	{ok, IndexHTML} = file:read_file(IndexFile),
+	case binary:match(IndexHTML, <<"Fail">>) of
+		{_, _} -> erlang:error(failed);
+		nomatch -> ok
+	end.