shell.js - mozsearch

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/*---

defines: [ISOFields, assertSameISOFields]

allow_unused: True

---*/

function ISOFields(monthDay) {

  let re = /^(?<year>-?\d{4,6})-(?<month>\d{2})-(?<day>\d{2})\[u-ca=(?<calendar>[\w\-]+)\]$/;

  let str = monthDay.toString({calendarName: "always"});

  let match = str.match(re);

  assertEq(match !== null, true, `can't match: ${str}`);

  let {year, month, day, calendar} = match.groups;

  let isoYear = Number(year);

  let isoMonth = Number(month);

  let isoDay = Number(day);

  let date = Temporal.PlainDate.from(str);

  let isoDate = date.withCalendar("iso8601");

  assertEq(calendar, date.calendarId);

  assertEq(isoYear, isoDate.year);

  assertEq(isoMonth, isoDate.month);

  assertEq(isoDay, isoDate.day);

  return {

    isoYear,

    isoMonth,

    isoDay,

    calendar,

};

function assertSameISOFields(actual, expected) {

  let actualFields = ISOFields(actual);

  let expectedFields = ISOFields(expected);

  assertEq(typeof actualFields.isoYear, "number");

  assertEq(typeof actualFields.isoMonth, "number");

  assertEq(typeof actualFields.isoDay, "number");

  assertEq(actualFields.isoMonth > 0, true);

  assertEq(actualFields.isoDay > 0, true);

  assertEq(actualFields.isoYear, expectedFields.isoYear);

  assertEq(actualFields.isoMonth, expectedFields.isoMonth);

  assertEq(actualFields.isoDay, expectedFields.isoDay);

  assertEq(actualFields.calendar, expectedFields.calendar);