add +u and +U to CHANMODES token

irc/modes/modes_test.go

@@ -5,6 +5,7 @@ package modes
 
 import (
 	"reflect"
+	"strings"
 	"testing"
 )
 
@@ -219,6 +220,15 @@ func TestHighestChannelUserMode(t *testing.T) {
 	}
 }
 
+func TestChanmodesToken(t *testing.T) {
+	tok := ChanmodesToken()
+	for _, mode := range SupportedChannelModes {
+		if strings.IndexRune(tok, rune(mode)) == -1 {
+			t.Errorf("+%s not included in ChanmodesToken()", mode)
+		}
+	}
+}
+
 func TestModeChangesString(t *testing.T) {
 	m := ModeChanges{
 		ModeChange{Op: Add, Mode: RegisteredOnly},