1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/js1_8_5/extensions/regress-604781-1.js b/js/src/tests/js1_8_5/extensions/regress-604781-1.js
new file mode 100644
index 000000000..a7c43f95d
--- /dev/null
+++ b/js/src/tests/js1_8_5/extensions/regress-604781-1.js
@@ -0,0 +1,24 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+var watcherCount, setterCount;
+function watcher(id, oldval, newval) { watcherCount++; return newval; }
+function setter(newval) { setterCount++; }
+
+var p = { set x(v) { setter(v); } };
+p.watch('x', watcher);
+
+watcherCount = setterCount = 0;
+p.x = 2;
+assertEq(setterCount, 1);
+assertEq(watcherCount, 1);
+
+var o = Object.defineProperty({}, 'x', { set:setter, enumerable:true, configurable:true });
+o.watch('x', watcher);
+
+watcherCount = setterCount = 0;
+o.x = 2;
+assertEq(setterCount, 1);
+assertEq(watcherCount, 1);
+
+reportCompare(0, 0, 'ok');