1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Map-values-1.js b/js/src/jit-test/tests/collections/Map-values-1.js
new file mode 100644
index 0000000000..8a31b59076
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Map-values-1.js
@@ -0,0 +1,14 @@
+// map.keys(), .values(), and .entries() on an empty map produce empty iterators.
+
+var m = new Map();
+var ki = m.keys(), vi = m.values(), ei = m.entries();
+var p = Object.getPrototypeOf(ki)
+assertEq(Object.getPrototypeOf(vi), p);
+assertEq(Object.getPrototypeOf(ei), p);
+
+for (let k of ki)
+    throw "FAIL";
+for (let v of vi)
+    throw "FAIL";
+for (let [k, v] of ei)
+    throw "FAIL";