1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/flatMap/inner-empty-iterable.js b/js/src/tests/non262/Iterator/prototype/flatMap/inner-empty-iterable.js
new file mode 100644
index 0000000000..24fcc85c2c
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/flatMap/inner-empty-iterable.js
@@ -0,0 +1,38 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
+
+//
+//
+/*---
+esid: pending
+description: %Iterator.prototype%.flatMap skips empty inner iterables.
+info: >
+  Iterator Helpers proposal 2.1.5.7
+  1. Repeat,
+    ...
+    i. Repeat, while innerAlive is true,
+      ...
+      iii. Let innerComplete be IteratorComplete(innerNext).
+      ...
+      v. If innerComplete is true, set innerAlive to false.
+features: [iterator-helpers]
+---*/
+
+let iter = [0, 1, 2, 3].values().flatMap(x => x % 2 ? [] : [x]);
+
+for (const expected of [0, 2]) {
+  const result = iter.next();
+  assertEq(result.value, expected);
+  assertEq(result.done, false);
+}
+
+let result = iter.next();
+assertEq(result.value, undefined);
+assertEq(result.done, true);
+
+iter = [0, 1, 2, 3].values().flatMap(x => []);
+result = iter.next();
+assertEq(result.value, undefined);
+assertEq(result.done, true);
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);