1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Set-iterator-remove-3.js b/js/src/jit-test/tests/collections/Set-iterator-remove-3.js
new file mode 100644
index 0000000000..fd9f498833
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Set-iterator-remove-3.js
@@ -0,0 +1,12 @@
+// A set iterator can cope with removing the next entry, then the current entry.
+
+load(libdir + "iteration.js");
+
+var set = new Set("abcd");
+var iter = set[Symbol.iterator]();
+assertIteratorNext(iter, "a");
+assertIteratorNext(iter, "b");
+set.delete("c");
+set.delete("b");
+assertIteratorNext(iter, "d");
+assertIteratorDone(iter, undefined);