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-rw-r--r--js/src/tests/non262/Intl/DateTimeFormat/japanese-gannen-year.js54
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diff --git a/js/src/tests/non262/Intl/DateTimeFormat/japanese-gannen-year.js b/js/src/tests/non262/Intl/DateTimeFormat/japanese-gannen-year.js
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+++ b/js/src/tests/non262/Intl/DateTimeFormat/japanese-gannen-year.js
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+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+
+var dtf = new Intl.DateTimeFormat("ja-u-ca-japanese", {
+ era: "short",
+ timeZone: "Asia/Tokyo",
+});
+
+var endShowa = new Date("1989-01-07T00:00:00.000Z");
+var startHeisei = new Date("1989-01-08T00:00:00.000Z");
+
+assertEq(dtf.format(endShowa), "昭和64/1/7");
+assertEq(dtf.format(startHeisei), "平成1/1/8");
+
+var parts = dtf.formatToParts(startHeisei);
+assertEq(parts.filter(p => p.type === "era")[0].value, "平成");
+assertEq(parts.filter(p => p.type === "year")[0].value, "1");
+
+var dtf = new Intl.DateTimeFormat("ja-u-ca-japanese", {
+ era: "short",
+ year: "numeric",
+ month: "long",
+ day: "numeric",
+ timeZone: "Asia/Tokyo",
+});
+
+assertEq(dtf.format(endShowa), "昭和64年1月7日");
+assertEq(dtf.format(startHeisei), "平成元年1月8日");
+
+var parts = dtf.formatToParts(startHeisei);
+assertEq(parts.filter(p => p.type === "era")[0].value, "平成");
+assertEq(parts.filter(p => p.type === "year")[0].value, "元");
+
+// ICU returns mixed numbers when an explicit numbering system is present.
+
+var dtf = new Intl.DateTimeFormat("ja-u-ca-japanese-nu-arab", {
+ era: "short",
+ timeZone: "Asia/Tokyo",
+});
+
+assertEq(dtf.format(endShowa), "昭和٦٤/١/٧");
+assertEq(dtf.format(startHeisei), "平成١/١/٨");
+
+var dtf = new Intl.DateTimeFormat("ja-u-ca-japanese-nu-arab", {
+ era: "short",
+ year: "numeric",
+ month: "numeric",
+ timeZone: "Asia/Tokyo",
+});
+
+assertEq(dtf.format(endShowa), "昭和64年١月");
+assertEq(dtf.format(startHeisei), "平成元年١月");
+
+if (typeof reportCompare === "function")
+ reportCompare(0, 0);