From c7877b31c72f1ec168fe51caaee8cfd164deb3f6 Mon Sep 17 00:00:00 2001
From: xuwei-k <6b656e6a69@gmail.com>
Date: Sat, 13 Sep 2025 16:35:30 +0900
Subject: [PATCH] fix waitOnMessage

---
 .../scala/org/scalajs/jsenv/test/kit/MsgHandler.scala     | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/js-envs-test-kit/src/main/scala/org/scalajs/jsenv/test/kit/MsgHandler.scala b/js-envs-test-kit/src/main/scala/org/scalajs/jsenv/test/kit/MsgHandler.scala
index 9825c76..c0ab16e 100644
--- a/js-envs-test-kit/src/main/scala/org/scalajs/jsenv/test/kit/MsgHandler.scala
+++ b/js-envs-test-kit/src/main/scala/org/scalajs/jsenv/test/kit/MsgHandler.scala
@@ -43,8 +43,12 @@ private[kit] final class MsgHandler {
     notifyAll()
   }
 
-  @tailrec
   def waitOnMessage(deadline: Deadline): String = synchronized {
+    waitOnMessageLoop(deadline)
+  }
+
+  @tailrec
+  private def waitOnMessageLoop(deadline: Deadline): String = {
     if (msgs.nonEmpty) {
       val (msg, newMsgs) = msgs.dequeue
       msgs = newMsgs
@@ -60,7 +64,7 @@ private[kit] final class MsgHandler {
       }
 
       wait(millis)
-      waitOnMessage(deadline)
+      waitOnMessageLoop(deadline)
     }
   }