1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/iterator-2.js b/js/src/jit-test/tests/collections/iterator-2.js
new file mode 100644
index 000000000..923a9b79b
--- /dev/null
+++ b/js/src/jit-test/tests/collections/iterator-2.js
@@ -0,0 +1,12 @@
+// for-of on an empty collection does not execute the loop body or modify the loop variable.
+
+function test(empty) {
+    var x = 'unchanged';
+    for (x of empty)
+        throw fit;
+    assertEq(x, 'unchanged');
+}
+
+test([]);
+test(new Map);
+test(new Set);
+\ No newline at end of file