1 files changed, 22 insertions, 0 deletions
diff --git a/deps/v8/test/intl/regress-8031.js b/deps/v8/test/intl/regress-8031.js
new file mode 100644
index 00000000000..0898026d99e
--- /dev/null
+++ b/deps/v8/test/intl/regress-8031.js
@@ -0,0 +1,22 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-intl-list-format
+
+var locales = ["tlh", "id", "en"];
+var input = ["a", "b", "c"];
+var referenceListFormat = new Intl.ListFormat(locales);
+var referenceFormatted = referenceListFormat.format(input);
+
+class MyFormat extends Intl.ListFormat {
+  constructor(locales, options) {
+    super(locales, options);
+    // could initialize MyListFormat properties
+  }
+  // could add methods to MyListFormat.prototype
+}
+
+var format = new MyFormat(locales);
+var actual = format.format(input);
+assertEquals(actual, referenceFormatted);