1 files changed, 75 insertions, 0 deletions
diff --git a/js/src/tests/js1_5/Regress/regress-127243.js b/js/src/tests/js1_5/Regress/regress-127243.js
new file mode 100644
index 000000000..11779f803
--- /dev/null
+++ b/js/src/tests/js1_5/Regress/regress-127243.js
@@ -0,0 +1,75 @@
+// |reftest| skip-if(xulRuntime.OS=="WINNT"&&isDebugBuild) slow
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 127243;
+var summary = 'Do not crash on watch';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+if (typeof window != 'undefined' && typeof document != 'undefined') 
+{
+  // delay test driver end
+  gDelayTestDriverEnd = true;
+  window.addEventListener('load', handleLoad, false);
+}
+else
+{
+  printStatus('This test must be run in the browser');
+  reportCompare(expect, actual, summary);
+
+}
+
+var div;
+
+function handleLoad()
+{
+  div = document.createElement('div');
+  document.body.appendChild(div);
+  div.setAttribute('id', 'id1');
+  div.style.width = '50px';
+  div.style.height = '100px';
+  div.style.overflow = 'auto';
+
+  for (var i = 0; i < 5; i++)
+  {
+    var p = document.createElement('p');
+    var t = document.createTextNode('blah');
+    p.appendChild(t);
+    div.appendChild(p);
+  }
+
+  div.watch('scrollTop', wee);
+
+  setTimeout('setScrollTop()', 1000);
+}
+
+function wee(id, oldval, newval)
+{
+  var t = document.createTextNode('setting ' + id +
+                                  ' value ' + div.scrollTop +
+                                  ' oldval ' + oldval +
+                                  ' newval ' + newval);
+  var p = document.createElement('p');
+  p.appendChild(t);
+  document.body.appendChild(p);
+
+  return newval;
+}
+
+function setScrollTop()
+{
+  div.scrollTop = 42;
+
+  reportCompare(expect, actual, summary);
+
+  gDelayTestDriverEnd = false;
+  jsTestDriverEnd();
+
+}