1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Set-clear-4.js b/js/src/jit-test/tests/collections/Set-clear-4.js
new file mode 100644
index 0000000000..5551a07abe
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Set-clear-4.js
@@ -0,0 +1,10 @@
+// Clearing a Set after deleting some entries works.
+
+var s = new Set(["a", "b", "c", "d"]);
+for (var v of s)
+    if (v !== "c")
+        s.delete(v);
+s.clear();
+assertEq(s.size, 0);
+assertEq(s.has("c"), false);
+assertEq(s.has("d"), false);