1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/object-addprop-hook.js b/js/src/jit-test/tests/cacheir/object-addprop-hook.js
new file mode 100644
index 0000000000..f138ed0b65
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/object-addprop-hook.js
@@ -0,0 +1,18 @@
+function test() {
+    var sym = Symbol();
+    for (var i = 0; i < 100; i++) {
+        var obj = newObjectWithAddPropertyHook();
+        assertEq(obj._propertiesAdded, 0);
+        obj.x = 1;
+        obj.y = 2;
+        obj.z = 3;
+        obj[sym] = 4;
+        obj[0] = 1;
+        obj[1234567] = 1;
+        assertEq(obj._propertiesAdded, 6);
+        assertEq(obj.x, 1);
+        assertEq(obj[sym], 4);
+        assertEq(obj[0], 1);
+    }
+}
+test();