birdy_chat/test/birdy_chat_web/channels/server_channel_test.exs

81 lines
3.2 KiB
Elixir

defmodule BirdyChatWeb.ServerChannelTest do
use BirdyChatWeb.ChannelCase
setup do
server_id = "test2"
token = Phoenix.Token.sign(BirdyChatWeb.Endpoint, "serverAuth", server_id)
path = Application.app_dir(:birdy_chat, ["priv", "messages", "test-user.txt"])
on_exit(fn -> File.rm(path) end)
{:ok, _, socket} =
BirdyChatWeb.ServerSocket
|> socket("server_socket", %{server_id: server_id})
|> subscribe_and_join(BirdyChatWeb.ServerChannel, "server:#{server_id}", %{token: token})
%{socket: socket}
end
describe "authorization" do
test "requires a signed token to join a channel" do
server_id = "test2"
token = Phoenix.Token.sign(BirdyChatWeb.Endpoint, "fakeAuth", server_id)
result =
BirdyChatWeb.ServerSocket
|> socket("server_socket", %{server_id: server_id})
|> subscribe_and_join(BirdyChatWeb.ServerChannel, "server:#{server_id}", %{token: token})
assert result == {:error, %{reason: "unauthorised"}}
end
test "requires server id in token and in channel to match" do
server_id = "test2"
token = Phoenix.Token.sign(BirdyChatWeb.Endpoint, "serverAuth", server_id)
result =
BirdyChatWeb.ServerSocket
|> socket("server_socket", %{server_id: server_id})
|> subscribe_and_join(BirdyChatWeb.ServerChannel, "server:fake", %{token: token})
assert result == {:error, %{reason: "unauthorised"}}
end
end
describe "new_message" do
test "receives message from other server and saves it locally", %{socket: socket} do
message = %{from: "test2-user", to: "test-user", message: "123"}
bin = :erlang.term_to_binary(message)
ref = push(socket, "new_message", {:binary, bin})
assert_reply ref, :ok, {:binary, ^bin}
path = Application.app_dir(:birdy_chat, ["priv", "messages", "test-user.txt"])
contents = File.read!(path)
assert contents == "test2-user: 123\n"
end
test "blows up when sent payload is not safe to decode", %{socket: socket} do
# This unsafe binary is taken from erlang docs directly:
bin = <<131, 119, 8, "tjenixen">>
Process.flag(:trap_exit, true)
push(socket, "new_message", {:binary, bin})
assert_receive {:EXIT, _pid,
{:badarg,
[
{:erlang, :binary_to_term,
[<<131, 119, 8, 116, 106, 101, 110, 105, 120, 101, 110>>, [:safe]],
[error_info: %{module: :erl_erts_errors}]},
{BirdyChatWeb.ServerChannel, :handle_in, 3,
[file: ~c"lib/birdy_chat_web/channels/server_channel.ex", line: 15]},
{Phoenix.Channel.Server, :handle_info, 2,
[file: ~c"lib/phoenix/channel/server.ex", line: 332]},
{:gen_server, :try_handle_info, 3,
[file: ~c"gen_server.erl", line: 2434]},
{:gen_server, :handle_msg, 3, [file: ~c"gen_server.erl", line: 2420]},
{:proc_lib, :init_p_do_apply, 3, [file: ~c"proc_lib.erl", line: 333]}
]}},
100
end
end
end