|  | // Copyright 2020 the V8 project authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | let d1 = new Date(Date.UTC(2019, 4, 23)); | 
|  |  | 
|  | // Ensure calendar: "japanese" under "ja" locale is correct. | 
|  | assertEquals("R1/5/23", d1.toLocaleDateString( | 
|  | "ja", {calendar: "japanese", timeZone:"UTC"})); | 
|  |  | 
|  | assertEquals("令和元年5月23日木曜日", d1.toLocaleDateString( | 
|  | "ja", {calendar: "japanese", timeZone:"UTC", dateStyle: "full"})); | 
|  |  | 
|  | assertEquals("令和元年5月23日", d1.toLocaleDateString( | 
|  | "ja", {calendar: "japanese", timeZone:"UTC", dateStyle: "long"})); | 
|  |  | 
|  | assertEquals("令和元年5月23日", d1.toLocaleDateString( | 
|  | "ja", {calendar: "japanese", timeZone:"UTC", dateStyle: "medium"})); | 
|  |  | 
|  | assertEquals("R1/5/23", d1.toLocaleDateString( | 
|  | "ja", {calendar: "japanese", timeZone:"UTC", dateStyle: "short"})); | 
|  |  | 
|  | // Ensure calendar: "chinese" under "zh" locale is correct. | 
|  | d1 = new Date(Date.UTC(2020, 4, 23)); | 
|  | assertEquals("2020年闰四月1", d1.toLocaleDateString( | 
|  | "zh", {calendar: "chinese", timeZone:"UTC"})); | 
|  |  | 
|  | assertEquals("2020庚子年闰四月初一星期六", d1.toLocaleDateString( | 
|  | "zh", {calendar: "chinese", timeZone:"UTC", dateStyle: "full"})); | 
|  |  | 
|  | assertEquals("2020庚子年闰四月初一", d1.toLocaleDateString( | 
|  | "zh", {calendar: "chinese", timeZone:"UTC", dateStyle: "long"})); | 
|  |  | 
|  | assertEquals("2020年闰四月初一", d1.toLocaleDateString( | 
|  | "zh", {calendar: "chinese", timeZone:"UTC", dateStyle: "medium"})); | 
|  |  | 
|  | assertEquals("2020/闰4/1", d1.toLocaleDateString( | 
|  | "zh", {calendar: "chinese", timeZone:"UTC", dateStyle: "short"})); |