From 65e996ba812236aac476c29ccc38bac44e3a39c8 Mon Sep 17 00:00:00 2001
From: Frank Yung-Fong Tang <41213225+FrankYFTang@users.noreply.github.com>
Date: Mon, 2 Dec 2019 07:43:53 -0800
Subject: [PATCH] Check the step 29 of InitializeDateTimeFormat (#2427)

---
 .../resolvedOptions/hourCycle-default.js      | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 test/intl402/DateTimeFormat/prototype/resolvedOptions/hourCycle-default.js

diff --git a/test/intl402/DateTimeFormat/prototype/resolvedOptions/hourCycle-default.js b/test/intl402/DateTimeFormat/prototype/resolvedOptions/hourCycle-default.js
new file mode 100644
index 0000000000..f8d56de4e5
--- /dev/null
+++ b/test/intl402/DateTimeFormat/prototype/resolvedOptions/hourCycle-default.js
@@ -0,0 +1,56 @@
+// Copyright 2019 Google Inc. All rights reserved.
+// This code is governed by the license found in the LICENSE file.
+
+/*---
+esid: sec-Intl.DateTimeFormat.prototype.resolvedOptions
+description: >
+  Intl.DateTimeFormat.prototype.resolvedOptions properly
+  reflect hourCycle settings.
+info: |
+  12.4.5 Intl.DateTimeFormat.prototype.resolvedOptions()
+
+  12.1.1 InitializeDateTimeFormat ( dateTimeFormat, locales, options )
+   29. If dateTimeFormat.[[Hour]] is not undefined, then
+     a. Let hcDefault be dataLocaleData.[[hourCycle]].
+     b. Let hc be dateTimeFormat.[[HourCycle]].
+     c. If hc is null, then
+        i. Set hc to hcDefault.
+     d. If hour12 is not undefined, then
+        i. If hour12 is true, then
+           1. If hcDefault is "h11" or "h23", then
+              a. Set hc to "h11".
+           2. Else,
+              a. Set hc to "h12".
+        ii. Else,
+           1. Assert: hour12 is false.
+           2. If hcDefault is "h11" or "h23", then
+              a. Set hc to "h23".
+           3. Else,
+              a. Set hc to "h24".
+     e. Set dateTimeFormat.[[HourCycle]] to hc.
+     
+locale: [en, fr, it, ja, zh, ko, ar, hi]
+---*/
+
+let locales = ["en", "fr", "it", "ja", "zh", "ko", "ar", "hi"];
+
+locales.forEach(function(locale) {
+  let hcDefault = (new Intl.DateTimeFormat(locale, {hour: "numeric"}))
+      .resolvedOptions().hourCycle;
+  if (hcDefault == "h11" || hcDefault == "h23") {
+    assert.sameValue("h11",
+        (new Intl.DateTimeFormat(locale, {hour: "numeric", hour12: true}))
+        .resolvedOptions().hourCycle);
+    assert.sameValue("h23",
+        (new Intl.DateTimeFormat(locale, {hour: "numeric", hour12: false}))
+        .resolvedOptions().hourCycle);
+  } else {
+    assert.sameValue(true, hcDefault == "h12" || hcDefault == "h24")
+    assert.sameValue("h12",
+        (new Intl.DateTimeFormat(locale, {hour: "numeric", hour12: true}))
+        .resolvedOptions().hourCycle);
+    assert.sameValue("h24",
+        (new Intl.DateTimeFormat(locale, {hour: "numeric", hour12: false}))
+        .resolvedOptions().hourCycle);
+  }
+});