1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/tests/non262/strict/primitive-this-no-writeback.js b/js/src/tests/non262/strict/primitive-this-no-writeback.js
new file mode 100644
index 0000000000..2f58fb2316
--- /dev/null
+++ b/js/src/tests/non262/strict/primitive-this-no-writeback.js
@@ -0,0 +1,20 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+/* Verify that GETTHISPROP does not update the frame's |this| slot. */
+
+var f = String.prototype.m = function () {
+    "use strict";
+    assertEq(this, "s");
+    // The GETTHISPROP should not cause |this| to become wrapped.
+    return [this.m, this];
+};
+var a = "s".m();
+assertEq(a[0], f);
+assertEq(a[1], "s");
+
+reportCompare(true, true);