1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/non262/strict/8.12.7-2.js b/js/src/tests/non262/strict/8.12.7-2.js
new file mode 100644
index 0000000000..2fd4dbae38
--- /dev/null
+++ b/js/src/tests/non262/strict/8.12.7-2.js
@@ -0,0 +1,21 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+// delete o[p] only performs ToString(p) once, even if there's a strict error.
+var hits = 0;
+var p = {
+    toString: function () {
+        hits++;
+        return "noconfig";
+    }
+};
+assertEq(testLenientAndStrict('var o = Object.freeze({noconfig: "ow"}); delete o[p]',
+                              returns(false), raisesException(TypeError)),
+         true);
+assertEq(hits, 2);
+
+reportCompare(true, true);