1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/map/throw-when-iterator-returns-non-object.js b/js/src/tests/non262/Iterator/prototype/map/throw-when-iterator-returns-non-object.js
new file mode 100644
index 0000000000..287507a2f6
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/map/throw-when-iterator-returns-non-object.js
@@ -0,0 +1,24 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
+//
+
+/*---
+esid: pending
+description: Throw TypeError if `next` call returns non-object.
+info:
+features: [iterator-helpers]
+---*/
+
+const iterator = returnValue => Object.setPrototypeOf({
+  next: () => returnValue,
+}, Iterator.prototype);
+const mapper = x => x;
+
+assertThrowsInstanceOf(() => iterator(undefined).map(mapper).next(), TypeError);
+assertThrowsInstanceOf(() => iterator(null).map(mapper).next(), TypeError);
+assertThrowsInstanceOf(() => iterator(0).map(mapper).next(), TypeError);
+assertThrowsInstanceOf(() => iterator(false).map(mapper).next(), TypeError);
+assertThrowsInstanceOf(() => iterator('').map(mapper).next(), TypeError);
+assertThrowsInstanceOf(() => iterator(Symbol()).map(mapper).next(), TypeError);
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);