refactor!: send/3 becomes command/3

To reflect that it does both send and receive.

lib/gen_nntp.ex

@@ -31,7 +31,7 @@ defmodule GenNNTP do
   @doc """
   Sends a command and receives server's response.
   """
-  defdelegate send(socket, command, args \\ []), to: :gen_nntp
+  defdelegate command(socket, command, args \\ []), to: :gen_nntp
 
   @callback init(any()) ::
     {:ok, state} | {:ok, state, timeout | :hibernate} |

src/gen_nntp.erl

@@ -10,8 +10,8 @@
   connect/1,
   connect/2,
   connect/3,
-  send/2,
-  send/3
+  command/2,
+  command/3
 ]).
 
 %% gen_server callbacks
@@ -136,10 +136,10 @@ connect(Address, Port, _Options) ->
 %% The function will also wait for the response from server.
 %% @end
 %%-------------------------------------------------------------------
-send(Socket, Commamd) ->
-  send(Socket, Commamd, []).
+command(Socket, Commamd) ->
+  command(Socket, Commamd, []).
 
-send(Socket, Command, _Args) when is_binary(Command) ->
+command(Socket, Command, _Args) when is_binary(Command) ->
   ok = gen_tcp:send(Socket, <<Command/binary, "\r\n">>),
   gen_tcp:recv(Socket, 0, 1000).
 

test/gen_nntp_test.exs

@@ -75,7 +75,7 @@ defmodule GenNNTPTest do
 
   end
 
-  describe "send/3" do
+  describe "command/3" do
 
     setup do
       GenNNTP.start(TestNNTPServer, [], [])
@@ -85,12 +85,12 @@ defmodule GenNNTPTest do
     end
 
     test "sends QUIT command", %{socket: socket} do
-      assert {:ok, response} = GenNNTP.send(socket, "QUIT", [])
+      assert {:ok, response} = GenNNTP.command(socket, "QUIT", [])
       assert response =~ ~r/^205 /
     end
 
-    test "send/2 default to empty arguments", %{socket: socket} do
-      assert {:ok, response} = GenNNTP.send(socket, "QUIT")
+    test "command/2 default to empty arguments", %{socket: socket} do
+      assert {:ok, response} = GenNNTP.command(socket, "QUIT")
       assert response =~ ~r/^205 /
     end