1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Symbol/keyFor.js b/js/src/tests/ecma_6/Symbol/keyFor.js
new file mode 100644
index 000000000..868c3bda7
--- /dev/null
+++ b/js/src/tests/ecma_6/Symbol/keyFor.js
@@ -0,0 +1,15 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+assertEq(Symbol.keyFor(Symbol.for("moon")), "moon");
+assertEq(Symbol.keyFor(Symbol.for("")), "");
+assertEq(Symbol.keyFor(Symbol("moon")), undefined);
+assertEq(Symbol.keyFor(Symbol.iterator), undefined);
+
+assertThrowsInstanceOf(() => Symbol.keyFor(), TypeError);
+assertThrowsInstanceOf(() => Symbol.keyFor(Object(Symbol("moon"))), TypeError);
+
+assertEq(Symbol.keyFor.length, 1);
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);