1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/Intl/supportedValuesOf/calendars-accepted-by-DateTimeFormat.js b/js/src/tests/test262/intl402/Intl/supportedValuesOf/calendars-accepted-by-DateTimeFormat.js
new file mode 100644
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+++ b/js/src/tests/test262/intl402/Intl/supportedValuesOf/calendars-accepted-by-DateTimeFormat.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2021 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.supportedvaluesof
+description: >
+  The returned "calendar" values can be used with DateTimeFormat.
+info: |
+  Intl.supportedValuesOf ( key )
+
+  1. Let key be ? ToString(key).
+  2. If key is "calendar", then
+    a. Let list be ! AvailableCalendars( ).
+  ...
+  9. Return ! CreateArrayFromList( list ).
+
+  AvailableCalendars ( )
+    The AvailableCalendars abstract operation returns a List, ordered as if an
+    Array of the same values had been sorted using %Array.prototype.sort% using
+    undefined as comparefn, that contains unique calendar types identifying the
+    calendars for which the implementation provides the functionality of
+    Intl.DateTimeFormat objects. The list must include "gregory".
+includes: [testIntl.js]
+locale: [en]
+features: [Intl-enumeration, Array.prototype.includes]
+---*/
+
+const calendars = Intl.supportedValuesOf("calendar");
+
+for (let calendar of calendars) {
+  let obj = new Intl.DateTimeFormat("en", {calendar});
+  assert.sameValue(obj.resolvedOptions().calendar, calendar,
+                   `${calendar} is supported by DateTimeFormat`);
+}
+
+for (let calendar of allCalendars()) {
+  let obj = new Intl.DateTimeFormat("en", {calendar});
+  if (obj.resolvedOptions().calendar === calendar) {
+    assert(calendars.includes(calendar),
+           `${calendar} supported but not returned by supportedValuesOf`);
+  } else {
+    assert(!calendars.includes(calendar),
+           `${calendar} not supported but returned by supportedValuesOf`);
+  }
+}
+
+reportCompare(0, 0);