1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/reduce/iterator-next-return-non-object-throws.js b/js/src/tests/non262/Iterator/prototype/reduce/iterator-next-return-non-object-throws.js
new file mode 100644
index 0000000000..d77789f04a
--- /dev/null
+++ b/js/src/tests/non262/Iterator/prototype/reduce/iterator-next-return-non-object-throws.js
@@ -0,0 +1,30 @@
+// |reftest| skip-if(!this.hasOwnProperty('Iterator')) -- Iterator is not enabled unconditionally
+
+class TestIterator extends Iterator {
+  constructor(value) {
+    super();
+    this.value = value;
+  }
+
+  next() {
+    return this.value;
+  }
+}
+
+const sum = (x, y) => x + y;
+
+let iter = new TestIterator(undefined);
+assertThrowsInstanceOf(() => iter.reduce(sum), TypeError);
+iter = new TestIterator(null);
+assertThrowsInstanceOf(() => iter.reduce(sum), TypeError);
+iter = new TestIterator(0);
+assertThrowsInstanceOf(() => iter.reduce(sum), TypeError);
+iter = new TestIterator(false);
+assertThrowsInstanceOf(() => iter.reduce(sum), TypeError);
+iter = new TestIterator('');
+assertThrowsInstanceOf(() => iter.reduce(sum), TypeError);
+iter = new TestIterator(Symbol(''));
+assertThrowsInstanceOf(() => iter.reduce(sum), TypeError);
+
+if (typeof reportCompare === 'function')
+  reportCompare(0, 0);