1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-returns-done-generator-finishes.js b/js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-returns-done-generator-finishes.js
new file mode 100644
index 0000000000..d6b3f14277
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-returns-done-generator-finishes.js
@@ -0,0 +1,27 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
+
+class TestIterator extends Iterator {
+  next() {
+    return {done: true, value: 'value'};
+  }
+}
+
+const methods = [
+  iter => iter.map(x => x),
+  iter => iter.filter(x => true),
+  iter => iter.take(1),
+  iter => iter.drop(0),
+  iter => iter.asIndexedPairs(),
+  iter => iter.flatMap(x => [x]),
+];
+
+for (const method of methods) {
+  const iterator = method(new TestIterator());
+  const result = iterator.next();
+  assertEq(result.done, true);
+  assertEq(result.value, undefined);
+}
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);
+