1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/toArray/value-throws-iterator-not-closed.js b/js/src/tests/non262/AsyncIterator/prototype/toArray/value-throws-iterator-not-closed.js
new file mode 100644
index 0000000000..a00f780185
--- /dev/null
+++ b/js/src/tests/non262/AsyncIterator/prototype/toArray/value-throws-iterator-not-closed.js
@@ -0,0 +1,33 @@
+// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) 
+
+class TestError extends Error {}
+class TestIterator extends AsyncIterator {
+  next() {
+    return Promise.resolve({
+      done: false,
+      get value() {
+        throw new TestError();
+      }
+    });
+  }
+
+  closed = false;
+  return() {
+    closed = true;
+  }
+}
+
+const iterator = new TestIterator();
+assertEq(iterator.closed, false, 'iterator starts unclosed');
+iterator.toArray().then(
+  () => {
+    throw new Error('toArray should have thrown');
+  },
+  err => {
+    assertEq(err instanceof TestError, true);
+    assertEq(iterator.closed, false, 'iterator remains unclosed');
+  }
+);
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);