1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/reduce/iterator-next-return-non-object-throws.js b/js/src/tests/non262/AsyncIterator/prototype/reduce/iterator-next-return-non-object-throws.js
new file mode 100644
index 0000000000..57c244d603
--- /dev/null
+++ b/js/src/tests/non262/AsyncIterator/prototype/reduce/iterator-next-return-non-object-throws.js
@@ -0,0 +1,31 @@
+// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) 
+
+class TestIterator extends AsyncIterator {
+  constructor(value) {
+    super();
+    this.value = value;
+  }
+
+  next() {
+    return Promise.resolve(this.value);
+  }
+}
+
+const sum = (x, y) => x + y;
+function check(value) {
+  const iter = new TestIterator(value);
+  iter.reduce(sum).then(() => assertEq(true, false, 'expected error'), err => {
+    assertEq(err instanceof TypeError, true);
+  });
+}
+
+check();
+check(undefined);
+check(null);
+check(0);
+check(false);
+check('');
+check(Symbol(''));
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);