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// |reftest| skip-if(!this.hasOwnProperty("Intl"))
function civilDate(options, date) {
var opts = Object.assign({timeZone: "Asia/Riyadh"}, options);
return new Intl.DateTimeFormat("ar-SA-u-ca-islamic-civil-nu-latn", opts).format(date);
}
function tabularDate(options, date) {
var opts = Object.assign({timeZone: "Asia/Riyadh"}, options);
return new Intl.DateTimeFormat("ar-SA-u-ca-islamic-tbla-nu-latn", opts).format(date);
}
function sightingDate(options, date) {
var opts = Object.assign({timeZone: "Asia/Riyadh"}, options);
return new Intl.DateTimeFormat("ar-SA-u-ca-islamic-rgsa-nu-latn", opts).format(date);
}
function ummAlQuraDate(options, date) {
var opts = Object.assign({timeZone: "Asia/Riyadh"}, options);
return new Intl.DateTimeFormat("ar-SA-u-ca-umalqura-nu-latn", opts).format(date);
}
// Test islamic-tbla (Tabular / Thursday epoch).
// Compare with islamic-civil (Tabular / Friday epoch).
function testIslamicTbla() {
var date = new Date(Date.UTC(2015, 1 - 1, 1));
// Month and year are the same.
var monthYear = {year: "numeric", month: "numeric"};
assertEq(civilDate(monthYear, date), tabularDate(monthYear, date));
// Day is different by one.
var day = {day: "numeric"};
assertEq(Number(civilDate(day, date)) - Number(tabularDate(day, date)), -1);
}
// Test islamic-rgsa (Saudi Arabia sighting).
// Sighting of the hilal (crescent moon) in Saudi Arabia.
function testIslamicRgsa() {
var date1 = new Date(Date.UTC(1975, 5 - 1, 6));
var date2 = new Date(Date.UTC(2015, 1 - 1, 1));
var dayMonthYear = {year: "numeric", month: "numeric", day: "numeric"};
assertEq(sightingDate(dayMonthYear, date1), tabularDate(dayMonthYear, date1));
assertEq(sightingDate(dayMonthYear, date2), civilDate(dayMonthYear, date2));
}
// Test islamic-umalqura (Umm al-Qura).
function testIslamicUmalqura() {
var year = {year: "numeric"};
var month = {month: "numeric"};
var day = {day: "numeric"};
// From ICU test files, which in turn was generated from:
// Official Umm-al-Qura calendar of SA:
var dates = [
[ {year: 2016, month: 1, day: 11}, {year: 1437, month: 4, day: 1} ],
[ {year: 2016, month: 2, day: 10}, {year: 1437, month: 5, day: 1} ],
[ {year: 2016, month: 3, day: 10}, {year: 1437, month: 6, day: 1} ],
[ {year: 2016, month: 4, day: 8}, {year: 1437, month: 7, day: 1} ],
[ {year: 2016, month: 5, day: 8}, {year: 1437, month: 8, day: 1} ],
[ {year: 2016, month: 6, day: 6}, {year: 1437, month: 9, day: 1} ],
[ {year: 2016, month: 7, day: 6}, {year: 1437, month: 10, day: 1} ],
[ {year: 2016, month: 8, day: 4}, {year: 1437, month: 11, day: 1} ],
[ {year: 2016, month: 9, day: 2}, {year: 1437, month: 12, day: 1} ],
[ {year: 2016, month: 10, day: 2}, {year: 1438, month: 1, day: 1} ],
[ {year: 2016, month: 11, day: 1}, {year: 1438, month: 2, day: 1} ],
[ {year: 2016, month: 11, day: 30}, {year: 1438, month: 3, day: 1} ],
[ {year: 2016, month: 12, day: 30}, {year: 1438, month: 4, day: 1} ],
];
for (var [gregorian, ummAlQura] of dates) {
var date = new Date(Date.UTC(gregorian.year, gregorian.month - 1, gregorian.day));
// Use parseInt() to remove the trailing era indicator.
assertEq(parseInt(ummAlQuraDate(year, date), 10), ummAlQura.year);
assertEq(Number(ummAlQuraDate(month, date)), ummAlQura.month);
assertEq(Number(ummAlQuraDate(day, date)), ummAlQura.day);
}
}
testIslamicTbla();
testIslamicRgsa();
testIslamicUmalqura();
if (typeof reportCompare === "function")
reportCompare(0, 0, "ok");