If not Testing, Msg will start with \x01.

client_test.go

@@ -511,7 +511,7 @@ func TestConnectAutojoin(t *testing.T) {
 		if Msg.Cmd == "NOTICE" {
 			expect = noticeExpect[0]
 			if expect != "Testing" {
-				expect += "\x01" + expect
+				expect = "\x01" + expect
 			}
 			noticeExpect = noticeExpect[1:]
 			if !strings.HasPrefix(Msg.Msg, expect) {