Added comments about what the ircd supports.

client_test.go

@@ -332,6 +332,7 @@ func TestConnectKick(t *testing.T) {
 		}
 	}
 
+	// 3 channels joined, 1 kick, +1 join=4.
 	if joins != 4 {
 		t.Errorf("Expected to join 4 times, got %d", joins)
 	}

irc-client.go

@@ -417,7 +417,7 @@ func (Config *IRCConfig) ReaderRoutine() {
 			}
 
 			if msg.Cmd == "CAP" && msg.Msg == "NAK" {
-				// SASL Authentication failed!
+				// SASL Authentication failed/not available.
 				Config.PriorityWrite("CAP END")
 				Config.UseSASL = false
 			}

ircd_test.go

@@ -101,10 +101,19 @@ func ircWrite(server net.Conn, output string, t *testing.T) {
 
 var abortAfter int = 150 // Milliseconds to abort part 3
 
-// mock up an irc server
-// part 1 : nick, user
-// part 2 : identify to services (if not SASL/SASL failed)
-// part 3 : quit after abortAfter ms
+/*
+	mock up an irc server
+	part 1 : nick, user
+	part 2 : identify to services (if not SASL/SASL failed)
+	part 3 : quit after abortAfter ms
+
+	Features:
+	if nick == "bad", return 443 Nick already in use.
+	JOIN #kick, kicks once from the channel.
+	SASL authentication testing.
+	TLS support, we make our own certificates.
+	Any messages sent to "echo" are reflected back to the client.
+*/
 func ircServer(listener net.Listener, t *testing.T, config *IRCConfig) {
 	var server net.Conn
 	var err error