1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/DateTimeFormat/prototype/resolvedOptions/order-dayPeriod.js b/js/src/tests/test262/intl402/DateTimeFormat/prototype/resolvedOptions/order-dayPeriod.js
new file mode 100644
index 0000000000..971ba2ac42
--- /dev/null
+++ b/js/src/tests/test262/intl402/DateTimeFormat/prototype/resolvedOptions/order-dayPeriod.js
@@ -0,0 +1,38 @@
+// Copyright 2019 Google Inc. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.datetimeformat.prototype.resolvedoptions
+description: Verifies the property order for the object returned by resolvedOptions().
+features: [Intl.DateTimeFormat-dayPeriod]
+---*/
+
+const options = new Intl.DateTimeFormat([], {
+  "dayPeriod": "short",
+  "hour": "numeric",
+  "minute": "numeric",
+}).resolvedOptions();
+
+const expected = [
+  "locale",
+  "calendar",
+  "numberingSystem",
+  "timeZone",
+  "hourCycle",
+  "hour12",
+  "dayPeriod",
+  "hour",
+  "minute",
+];
+
+let actual = Object.getOwnPropertyNames(options);
+
+// Ensure all expected items are in actual and also allow other properties
+// implemented in new proposals.
+assert(actual.indexOf("locale") > -1, "\"locale\" is present");
+for (var i = 1; i < expected.length; i++) {
+  // Ensure the order as expected but allow additional new property in between
+  assert(actual.indexOf(expected[i-1]) < actual.indexOf(expected[i]), `"${expected[i-1]}" precedes "${expected[i]}"`);
+}
+
+reportCompare(0, 0);