1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js b/js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js
new file mode 100644
index 0000000000..3da588f444
--- /dev/null
+++ b/js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js
@@ -0,0 +1,44 @@
+// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator'))
+
+//
+//
+/*---
+esid: pending
+description: %AsyncIterator.prototype%.flatMap skips empty inner iterables.
+info: >
+  Iterator Helpers proposal 2.1.6.7
+  1. Repeat,
+    ...
+    k. Repeat, while innerAlive is true,
+      ...
+      v. Let innerComplete be IteratorComplete(innerNext).
+      ...
+      vii. If innerComplete is true, set innerAlive to false.
+features: [iterator-helpers]
+---*/
+
+async function* gen(values) {
+  yield* values;
+}
+
+(async () => {
+  let iter = gen([0, 1, 2, 3]).flatMap(x => x % 2 ? gen([]) : gen([x]));
+
+  for (const expected of [0, 2]) {
+    const result = await iter.next();
+    assertEq(result.value, expected);
+    assertEq(result.done, false);
+  }
+
+  let result = await iter.next();
+  assertEq(result.value, undefined);
+  assertEq(result.done, true);
+
+  iter = gen([0, 1, 2, 3]).flatMap(x => gen([]));
+  result = await iter.next();
+  assertEq(result.value, undefined);
+  assertEq(result.done, true);
+})();
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);