1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/flatMap/inner-generator.js b/js/src/tests/non262/Iterator/prototype/flatMap/inner-generator.js
new file mode 100644
index 0000000000..9589027b4b
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/flatMap/inner-generator.js
@@ -0,0 +1,29 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
+
+//
+//
+/*---
+esid: pending
+description: %Iterator.prototype%.flatMap innerIterator can be a generator.
+info: >
+  Iterator Helpers proposal 2.1.5.7
+features: [iterator-helpers]
+---*/
+
+const iter = [1, 2].values().flatMap(function*(x) {
+  yield x;
+  yield* [x + 1, x + 2];
+});
+
+for (const expected of [1, 2, 3, 2, 3, 4]) {
+  const result = iter.next();
+  assertEq(result.value, expected);
+  assertEq(result.done, false);
+}
+
+const result = iter.next();
+assertEq(result.value, undefined);
+assertEq(result.done, true);
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);