Add intl in staging directory

test/staging/Intl402/Temporal/old/addition-across-lunisolar-leap-months.js

@@ -0,0 +1,93 @@
+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal-intl
+description: Addition across lunisolar leap months
+features: [Temporal]
+---*/
+
+// Adding years across Hebrew leap month
+var date = Temporal.PlainDate.from({
+  year: 5783,
+  monthCode: "M08",
+  day: 2,
+  calendar: "hebrew"
+});
+var added = date.add({ years: 1 });
+assert.sameValue(added.monthCode, date.monthCode);
+assert.sameValue(added.year, date.year + 1);
+
+// Adding months across Hebrew leap month
+var date = Temporal.PlainDate.from({
+  year: 5783,
+  monthCode: "M08",
+  day: 2,
+  calendar: "hebrew"
+});
+var added = date.add({ months: 13 });
+assert.sameValue(added.monthCode, date.monthCode);
+assert.sameValue(added.year, date.year + 1);
+
+// Adding months and years across Hebrew leap month
+var date = Temporal.PlainDate.from({
+  year: 5783,
+  monthCode: "M08",
+  day: 2,
+  calendar: "hebrew"
+});
+var added = date.add({
+  years: 1,
+  months: 12
+});
+assert.sameValue(added.monthCode, date.monthCode);
+assert.sameValue(added.year, date.year + 2);
+var testChineseData = new Date("2001-02-01T00:00Z").toLocaleString("en-US-u-ca-chinese", {
+  day: "numeric",
+  month: "numeric",
+  year: "numeric",
+  era: "short",
+  timeZone: "UTC"
+});
+var hasOutdatedChineseIcuData = !testChineseData.endsWith("2001");
+
+// Adding years across Chinese leap month"
+if(hasOutdatedChineseIcuData) {
+  var date = Temporal.PlainDate.from({
+    year: 2000,
+    monthCode: "M08",
+    day: 2,
+    calendar: "chinese"
+  });
+  var added = date.add({ years: 1 });
+  assert.sameValue(added.monthCode, date.monthCode);
+  assert.sameValue(added.year, date.year + 1);
+}
+// Adding months across Chinese leap month
+if(hasOutdatedChineseIcuData) {
+  var date = Temporal.PlainDate.from({
+    year: 2000,
+    monthCode: "M08",
+    day: 2,
+    calendar: "chinese"
+  });
+  var added = date.add({ months: 13 });
+  assert.sameValue(added.monthCode, date.monthCode);
+  assert.sameValue(added.year, date.year + 1);
+}
+
+// Adding months and years across Chinese leap month
+if(hasOutdatedChineseIcuData) {
+  var date = Temporal.PlainDate.from({
+    year: 2001,
+    monthCode: "M08",
+    day: 2,
+    calendar: "chinese"
+  });
+  var added = date.add({
+    years: 1,
+    months: 12
+  });
+  assert.sameValue(added.monthCode, date.monthCode);
+  assert.sameValue(added.year, date.year + 2);
+};