1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Map-clear-iterators-2.js b/js/src/jit-test/tests/collections/Map-clear-iterators-2.js
new file mode 100644
index 0000000000..a64b5f11cb
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Map-clear-iterators-2.js
@@ -0,0 +1,12 @@
+// A Map iterator continues to visit entries added after a clear().
+
+load(libdir + "asserts.js");
+load(libdir + "iteration.js");
+
+var m = new Map([["a", 1]]);
+var it = m[Symbol.iterator]();
+assertIteratorNext(it, ["a", 1]);
+m.clear();
+m.set("b", 2);
+assertIteratorNext(it, ["b", 2]);
+assertIteratorDone(it, undefined);