1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/from/proxy-wrap-throw.js b/js/src/tests/non262/Iterator/from/proxy-wrap-throw.js
new file mode 100644
index 0000000000..92a51f4a26
--- /dev/null
+++ b/js/src/tests/non262/Iterator/from/proxy-wrap-throw.js
@@ -0,0 +1,31 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator')) -- Iterator is not enabled unconditionally
+const log = [];
+const handlerProxy = new Proxy({}, {
+  get: (target, key, receiver) => (...args) => {
+    log.push(`${key}: ${args[1].toString()}`);
+
+    const item = Reflect[key](...args);
+    if (typeof item === 'function')
+      return item.bind(receiver);
+    return item;
+  },
+});
+const iter = new Proxy({
+  next: () => ({ done: false, value: 0 }),
+  throw: (value) => ({ done: true, value }),
+}, handlerProxy);
+
+const wrap = Iterator.from(iter);
+wrap.throw();
+wrap.throw();
+
+assertEq(
+  log.join('\n'),
+  `get: Symbol(Symbol.iterator)
+get: next
+get: throw
+get: throw`
+);
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);