1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/named-groups/shell.js b/js/src/tests/test262/built-ins/RegExp/named-groups/shell.js
new file mode 100644
index 0000000000..c752bae293
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/named-groups/shell.js
@@ -0,0 +1,37 @@
+// GENERATED, DO NOT EDIT
+// file: compareIterator.js
+// Copyright (C) 2018 Peter Wong.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Compare the values of an iterator with an array of expected values
+defines: [assert.compareIterator]
+---*/
+
+// Example:
+//
+//    function* numbers() {
+//      yield 1;
+//      yield 2;
+//      yield 3;
+//    }
+//
+//    assert.compareIterator(numbers(), [
+//      v => assert.sameValue(v, 1),
+//      v => assert.sameValue(v, 2),
+//      v => assert.sameValue(v, 3),
+//    ]);
+//
+assert.compareIterator = function(iter, validators, message) {
+  message = message || '';
+
+  var i, result;
+  for (i = 0; i < validators.length; i++) {
+    result = iter.next();
+    assert(!result.done, 'Expected ' + i + ' values(s). Instead iterator only produced ' + (i - 1) + ' value(s). ' + message);
+    validators[i](result.value);
+  }
+
+  result = iter.next();
+  assert(result.done, 'Expected only ' + i + ' values(s). Instead iterator produced more. ' + message);
+  assert.sameValue(result.value, undefined, 'Expected value of `undefined` when iterator completes. ' + message);
+}