fixup! Add Iterator#chunks to allow splitting iterator values into Ar…

…rays

test/iterator.js

@@ -624,6 +624,27 @@ metatests.testSync('Iterator.chunk with number', test => {
   test.strictSame(actual, [[1, 2, 3], [1, 4, 5], [1, 6, 7]]);
 });
 
+metatests.testSync('Iterator.chunk with empty iterator', test => {
+  const actual = iter([])
+    .chunk(3)
+    .toArray();
+  test.strictSame(actual, []);
+});
+
+metatests.testSync('Iterator.chunk with single chunk', test => {
+  const actual = iter([1, 2, 3, 1, 4, 5, 1, 6, 7])
+    .chunk(() => false)
+    .toArray();
+  test.strictSame(actual, [[1, 2, 3, 1, 4, 5, 1, 6, 7]]);
+});
+
+metatests.testSync('Iterator.chunk with empty chunks', test => {
+  const actual = iter([1, 1, 3, 3, 3, 5, 5])
+    .chunk(x => x === 3)
+    .toArray();
+  test.strictSame(actual, [[1, 1], [3], [3], [3, 5, 5]]);
+});
+
 metatests.testSync('iterEntries must iterate over object entries', test => {
   const source = { a: 13, b: 42, c: 'hello' };
   test.strictSame(iterEntries(source).toArray(), Object.entries(source));