1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/map/mapper-not-callable-throw.js b/js/src/tests/non262/Iterator/prototype/map/mapper-not-callable-throw.js
new file mode 100644
index 0000000000..334e0fd8f9
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/map/mapper-not-callable-throw.js
@@ -0,0 +1,33 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
+//
+
+/*---
+esid: pending
+description: Eagerly throw TypeError when `mapper` is not callable.
+info:
+features: [iterator-helpers]
+---*/
+
+assertThrowsInstanceOf(() => Iterator.prototype.map(undefined), TypeError);
+assertThrowsInstanceOf(() => [].values().map(undefined), TypeError);
+
+assertThrowsInstanceOf(() => Iterator.prototype.map(null), TypeError);
+assertThrowsInstanceOf(() => [].values().map(null), TypeError);
+
+assertThrowsInstanceOf(() => Iterator.prototype.map(0), TypeError);
+assertThrowsInstanceOf(() => [].values().map(0), TypeError);
+
+assertThrowsInstanceOf(() => Iterator.prototype.map(false), TypeError);
+assertThrowsInstanceOf(() => [].values().map(false), TypeError);
+
+assertThrowsInstanceOf(() => Iterator.prototype.map({}), TypeError);
+assertThrowsInstanceOf(() => [].values().map({}), TypeError);
+
+assertThrowsInstanceOf(() => Iterator.prototype.map(''), TypeError);
+assertThrowsInstanceOf(() => [].values().map(''), TypeError);
+
+assertThrowsInstanceOf(() => Iterator.prototype.map(Symbol('')), TypeError);
+assertThrowsInstanceOf(() => [].values().map(Symbol('')), TypeError);
+
+if (typeof reportCompare == 'function')
+  reportCompare(0, 0);