1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Set-clear-iterators-1.js b/js/src/jit-test/tests/collections/Set-clear-iterators-1.js
new file mode 100644
index 000000000..b5198ed64
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Set-clear-iterators-1.js
@@ -0,0 +1,23 @@
+// A Set iterator does not visit entries removed by clear().
+
+load(libdir + "iteration.js");
+
+var s = new Set();
+var it = s[Symbol.iterator]();
+s.clear();
+assertIteratorDone(it, undefined);
+
+s = new Set(["a", "b", "c", "d"]);
+it = s[Symbol.iterator]();
+assertIteratorNext(it, "a");
+s.clear();
+assertIteratorDone(it, undefined);
+
+var log = "";
+s = new Set(["a", "b", "c", "d"]);
+for (var v of s) {
+    log += v;
+    if (v == "b")
+        s.clear();
+}
+assertEq(log, "ab");