// |reftest| skip-if(xulRuntime.OS=="WINNT"||!xulRuntime.shell)

assertEq(/^(PST|PDT)$/.test(getTimeZone()), true,
         "The default time zone is set to PST8PDT for all jstests (when run in the shell)");

function timeZoneName() {
    var dtf = new Intl.DateTimeFormat("en-US", {timeZoneName: "long"});
    return dtf.formatToParts(Date.UTC(2017, 2, 31, 12, 0, 0)).filter(x => x.type === "timeZoneName")[0].value;
}

setTimeZone("Europe/Paris");
assertEq(timeZoneName(), "Central European Summer Time");

setTimeZone(":Europe/Helsinki");
assertEq(timeZoneName(), "Eastern European Summer Time");

setTimeZone("::Europe/London"); // two colons, invalid
assertEq(timeZoneName(), "Coordinated Universal Time");

setTimeZone("/this-part-is-ignored/zoneinfo/America/Chicago");
assertEq(timeZoneName(), "Central Daylight Time");

setTimeZone(":/this-part-is-ignored/zoneinfo/America/Phoenix");
assertEq(timeZoneName(), "Mountain Standard Time");

setTimeZone("::/this-part-is-ignored/zoneinfo/America/Los_Angeles"); // two colons, invalid
assertEq(timeZoneName(), "Coordinated Universal Time");

if (typeof reportCompare === "function")
    reportCompare(true, true);