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MomentZoneRulesTest.js
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MomentZoneRulesTest.js
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/*
* @copyright (c) 2016-present, Philipp Thürwächter, Pattrick Hüper
* @copyright (c) 2007-present, Stephen Colebourne & Michael Nascimento Santos
* @license BSD-3-Clause (see LICENSE in the root directory of this source tree)
*/
import { expect } from 'chai';
import {
Instant, LocalDateTime, ZonedDateTime, ZoneId, ZoneOffset
} from 'js-joda';
import { assertEquals, dataProviderTest } from './testUtils';
import './useMomentZoneRules';
import { MomentZoneRulesProvider } from '../src/MomentZoneRulesProvider';
describe('MomentZoneRules', () => {
const OFFSET_MFIVE = ZoneOffset.ofHours(-5);
const OFFSET_MFOUR = ZoneOffset.ofHours(-4);
const OFFSET_LMT_LONDON = ZoneOffset.ofHoursMinutesSeconds(0,-1, -15);
const OFFSET_ZERO = ZoneOffset.ofHours(0);
const OFFSET_PONE = ZoneOffset.ofHours(1);
const OFFSET_PTWO = ZoneOffset.ofHours(2);
const OFFSET_PTHREE = ZoneOffset.ofHours(3);
const EUROPE_BERLIN = ZoneId.of('Europe/Berlin');
const AMERICA_NEW_YORCK = ZoneId.of('America/New_York');
context('ZoneId.getAvailableZoneIds', () => {
it('should list some common zone id\'s', () => {
const availableZoneIds = ZoneId.getAvailableZoneIds();
expect(availableZoneIds).contain('Australia/Darwin');
expect(availableZoneIds).contain('America/Argentina/Buenos_Aires');
expect(availableZoneIds).contain('America/New_York');
expect(availableZoneIds).contain('Europe/Paris');
expect(availableZoneIds).contain('Asia/Kolkata');
expect(availableZoneIds).contain('Asia/Ho_Chi_Minh');
expect(availableZoneIds).contain('Etc/GMT+0');
expect(availableZoneIds).contain('Etc/GMT-1');
expect(availableZoneIds).contain('Etc/GMT+10');
});
});
context('now', function () {
it('should return system default zone', () => {
const zdt = ZonedDateTime.now();
const defaultZone = ZoneId.systemDefault();
expect(zdt.zone().equals(defaultZone)).to.be.true;
});
});
context('getOffset of Instant', () => {
const europeLondon = MomentZoneRulesProvider.getRules('Europe/London');
const europeParis = MomentZoneRulesProvider.getRules('Europe/Paris');
it('Europe/Paris', () => {
assertEquals(
europeParis.offset(createInstant(1800, 1, 1, 0, 0, ZoneOffset.UTC)),
ZoneOffset.ofHoursMinutesSeconds(0, 9, 21));
assertEquals(
europeParis.offset(createInstant(2008, 1, 1, 0, 0, ZoneOffset.UTC)), OFFSET_PONE);
assertEquals(
europeParis.offset(createInstant(2008, 4, 1, 0, 0, ZoneOffset.UTC)), OFFSET_PTWO);
assertEquals(
europeParis.offset(createInstant(2008, 10, 1, 0, 0, ZoneOffset.UTC)), OFFSET_PTWO);
assertEquals(
europeParis.offset(createInstant(2008, 11, 1, 0, 0, ZoneOffset.UTC)), OFFSET_PONE);
});
it('Europe/London', () => {
assertEquals(europeLondon.offset(createInstant(1800, 1, 1, 0, 0, ZoneOffset.UTC)), OFFSET_LMT_LONDON);
assertEquals(europeLondon.offset(createInstant(2008, 1, 1, 0, 0, ZoneOffset.UTC)), OFFSET_ZERO);
assertEquals(europeLondon.offset(createInstant(2008, 4, 1, 0, 0, ZoneOffset.UTC)), OFFSET_PONE);
assertEquals(europeLondon.offset(createInstant(2008, 11, 1, 0, 0, ZoneOffset.UTC)), OFFSET_ZERO);
assertEquals(europeLondon.offset(createInstant(2800, 1, 1, 0, 0, ZoneOffset.UTC)), OFFSET_ZERO);
});
});
context('getOffset of LocalDateTime', () => {
const europeLondon = MomentZoneRulesProvider.getRules('Europe/London');
const europeParis = MomentZoneRulesProvider.getRules('Europe/Paris');
it('Europe/Paris', () => {
assertEquals(europeParis.offset(createLocalDateTime(1800, 1, 1, 0, 0)),
ZoneOffset.ofHoursMinutesSeconds(0, 9, 21));
assertEquals(europeParis.offset(createLocalDateTime(2008, 1, 1, 0, 0)), OFFSET_PONE);
assertEquals(europeParis.offset(createLocalDateTime(2008, 4, 1, 0, 0)), OFFSET_PTWO);
assertEquals(europeParis.offset(createLocalDateTime(2008, 10, 1, 0, 0)), OFFSET_PTWO);
assertEquals(europeParis.offset(createLocalDateTime(2008, 11, 1, 0, 0)), OFFSET_PONE);
assertEquals(europeParis.offset(createLocalDateTime(2800, 1, 1, 0, 0)), OFFSET_PONE);
// gap
assertEquals(europeParis.offset(createLocalDateTime(2016, 3, 27, 2, 0)), OFFSET_PONE);
assertEquals(europeParis.offset(createLocalDateTime(2016, 3, 27, 2, 30)), OFFSET_PONE);
assertEquals(europeParis.offset(createLocalDateTime(2016, 3, 27, 3, 0)), OFFSET_PTWO);
// overlap
assertEquals(europeParis.offset(createLocalDateTime(2016, 10, 30, 2, 0)), OFFSET_PTWO);
assertEquals(europeParis.offset(createLocalDateTime(2016, 10, 30, 2, 30)), OFFSET_PTWO);
assertEquals(europeParis.offset(createLocalDateTime(2016, 10, 30, 3, 0)), OFFSET_PONE);
});
it('Europe/London', () => {
assertEquals(europeLondon.offset(createLocalDateTime(1800, 1, 1, 0, 0)), OFFSET_LMT_LONDON);
assertEquals(europeLondon.offset(createLocalDateTime(2008, 1, 1, 0, 0)), OFFSET_ZERO);
assertEquals(europeLondon.offset(createLocalDateTime(2008, 4, 1, 0, 0)), OFFSET_PONE);
assertEquals(europeLondon.offset(createLocalDateTime(2008, 11, 1, 0, 0)), OFFSET_ZERO);
assertEquals(europeLondon.offset(createLocalDateTime(2800, 1, 1, 0, 0)), OFFSET_ZERO);
});
});
context('withZoneSameLocal', () => {
it('retain offset Europe/Paris', () => {
const baseZdt = createLocalDateTime(2008, 1, 1, 0, 0).atZone(ZoneId.of('UTC+01:00'));
const testZdt = baseZdt.withZoneSameLocal(ZoneId.of('Europe/Paris'));
assertEquals(baseZdt.offset(), ZoneOffset.ofHours(1));
assertEquals(testZdt.offset(), ZoneOffset.ofHours(1));
assertEquals(testZdt.toLocalDateTime(), createLocalDateTime(2008, 1, 1, 0, 0));
});
it('change offset Europe/Paris', () => {
const baseZdt = createLocalDateTime(2008, 1, 1, 0, 0).atZone(ZoneId.of('UTC-04:00'));
const testZdt = baseZdt.withZoneSameLocal(ZoneId.of('Europe/Paris'));
assertEquals(baseZdt.offset(), ZoneOffset.ofHours(-4));
assertEquals(testZdt.offset(), ZoneOffset.ofHours(1));
assertEquals(testZdt.toLocalDateTime(), createLocalDateTime(2008, 1, 1, 0, 0));
});
it('retain offset America/New_York', () => {
const baseZdt = createLocalDateTime(2008, 1, 1, 0, 0).atZone(ZoneId.of('UTC-05:00'));
const testZdt = baseZdt.withZoneSameLocal(ZoneId.of('America/New_York'));
assertEquals(baseZdt.offset(), ZoneOffset.ofHours(-5));
assertEquals(testZdt.offset(), ZoneOffset.ofHours(-5));
assertEquals(testZdt.toLocalDateTime(), createLocalDateTime(2008, 1, 1, 0, 0));
});
it('change offset America/New_York', () => {
const baseZdt = createLocalDateTime(2008, 1, 1, 0, 0).atZone(ZoneId.of('UTC+01:00'));
const testZdt = baseZdt.withZoneSameLocal(ZoneId.of('America/New_York'));
assertEquals(baseZdt.offset(), ZoneOffset.ofHours(1));
assertEquals(testZdt.offset(), ZoneOffset.ofHours(-5));
assertEquals(testZdt.toLocalDateTime(), createLocalDateTime(2008, 1, 1, 0, 0));
});
});
describe('ZonedDateTime.parse ZoneRegionId', () => {
it('should parse iso 8601 date/ time with a zone region id America/New_York', () => {
const base = ZonedDateTime.parse('2008-01-01T00:00-05:00[America/New_York]');
assertEquals(base.toLocalDateTime(), LocalDateTime.of(2008, 1, 1, 0, 0));
assertEquals(base.zone(), ZoneId.of('America/New_York'));
assertEquals(base.toInstant(), Instant.parse('2008-01-01T05:00:00Z'));
});
it('should parse iso 8601 date/ time with a zone region id Europe/Berlin', () => {
const base = ZonedDateTime.parse('2008-01-01T00:00+01:00[Europe/Berlin]');
assertEquals(base.toLocalDateTime(), LocalDateTime.of(2008, 1, 1, 0, 0));
assertEquals(base.zone(), ZoneId.of('Europe/Berlin'));
assertEquals(base.toInstant(), Instant.parse('2007-12-31T23:00:00Z'));
});
});
describe('ofLocal', () => {
const LOCAL_DATE_IN_SUMMER = LocalDateTime.of(2016, 6, 30, 11, 30, 59, 500);
const LOCAL_DATE_IN_WINTER = LocalDateTime.of(2016, 12, 21, 11, 30, 59, 500);
const FIXED_ZONE_06 = ZoneOffset.ofHours(6);
it('should equal in case of a local date with one valid offset at this zone', () => {
const testLocalToZoneEquality = [
[LOCAL_DATE_IN_SUMMER, FIXED_ZONE_06, '2016-06-30T11:30:59.000000500+06:00'],
[LOCAL_DATE_IN_SUMMER, ZoneOffset.UTC, '2016-06-30T11:30:59.000000500Z'],
[LOCAL_DATE_IN_SUMMER, EUROPE_BERLIN, '2016-06-30T11:30:59.000000500+02:00[Europe/Berlin]'],
[LOCAL_DATE_IN_WINTER, EUROPE_BERLIN, '2016-12-21T11:30:59.000000500+01:00[Europe/Berlin]'],
[LOCAL_DATE_IN_SUMMER, AMERICA_NEW_YORCK, '2016-06-30T11:30:59.000000500-04:00[America/New_York]'],
[LOCAL_DATE_IN_WINTER, AMERICA_NEW_YORCK, '2016-12-21T11:30:59.000000500-05:00[America/New_York]'],
];
dataProviderTest(testLocalToZoneEquality, (localDateTime, zone, expectedZonedDateAsString) => {
const zdt = ZonedDateTime.ofLocal(localDateTime, zone);
expect(zdt.toString()).to.equal(expectedZonedDateAsString);
});
});
it('should add zone offset for a local date with a gap at this zone', () => {
const testLocalToZoneEquality = [
['2016-03-27T01:59', EUROPE_BERLIN, '2016-03-27T01:59+01:00[Europe/Berlin]'],
['2016-03-27T02:00', EUROPE_BERLIN, '2016-03-27T03:00+02:00[Europe/Berlin]'],
['2016-03-27T02:30', EUROPE_BERLIN, '2016-03-27T03:30+02:00[Europe/Berlin]'],
['2016-03-27T03:00', EUROPE_BERLIN, '2016-03-27T03:00+02:00[Europe/Berlin]'],
['2016-03-27T03:01', EUROPE_BERLIN, '2016-03-27T03:01+02:00[Europe/Berlin]'],
['2016-03-13T01:59', AMERICA_NEW_YORCK, '2016-03-13T01:59-05:00[America/New_York]'],
['2016-03-13T02:00', AMERICA_NEW_YORCK, '2016-03-13T03:00-04:00[America/New_York]'],
['2016-03-13T02:30', AMERICA_NEW_YORCK, '2016-03-13T03:30-04:00[America/New_York]'],
['2016-03-13T03:00', AMERICA_NEW_YORCK, '2016-03-13T03:00-04:00[America/New_York]'],
['2016-03-13T03:01', AMERICA_NEW_YORCK, '2016-03-13T03:01-04:00[America/New_York]'],
];
dataProviderTest(testLocalToZoneEquality, (localDateTimeAsString, zone, expectedZonedDateAsString) => {
const ldt = LocalDateTime.parse(localDateTimeAsString);
const zdt = ZonedDateTime.ofLocal(ldt, zone);
expect(zdt.toString()).to.equal(expectedZonedDateAsString);
});
});
it('should return the previous offset for a local date with an overlap at this zone', () => {
const testLocalToZoneEquality = () => {
return [
['2016-10-30T01:59', EUROPE_BERLIN, '2016-10-30T01:59+02:00[Europe/Berlin]'],
['2016-10-30T02:00', EUROPE_BERLIN, '2016-10-30T02:00+02:00[Europe/Berlin]'],
['2016-10-30T02:30', EUROPE_BERLIN, '2016-10-30T02:30+02:00[Europe/Berlin]'],
['2016-10-30T03:00', EUROPE_BERLIN, '2016-10-30T03:00+01:00[Europe/Berlin]'],
['2016-10-30T03:01', EUROPE_BERLIN, '2016-10-30T03:01+01:00[Europe/Berlin]'],
['2016-11-06T00:59', AMERICA_NEW_YORCK, '2016-11-06T00:59-04:00[America/New_York]'],
['2016-11-06T01:00', AMERICA_NEW_YORCK, '2016-11-06T01:00-04:00[America/New_York]'],
['2016-11-06T01:30', AMERICA_NEW_YORCK, '2016-11-06T01:30-04:00[America/New_York]'],
['2016-11-06T02:00', AMERICA_NEW_YORCK, '2016-11-06T02:00-05:00[America/New_York]'],
['2016-11-06T02:01', AMERICA_NEW_YORCK, '2016-11-06T02:01-05:00[America/New_York]'],
];
};
dataProviderTest(testLocalToZoneEquality, (localDateTimeAsString, zone, expectedZonedDateAsString) => {
const ldt = LocalDateTime.parse(localDateTimeAsString);
const zdt = ZonedDateTime.ofLocal(ldt, zone);
expect(zdt.toString()).to.equal(expectedZonedDateAsString);
});
});
it('should return the preferred offset if specified in an overlap situation', () => {
const testLocalToZoneEquality = () => {
return [
['2016-10-30T02:30', EUROPE_BERLIN, ZoneOffset.ofHours(1)],
['2016-10-30T02:30', EUROPE_BERLIN, ZoneOffset.ofHours(2)],
['2016-11-06T01:30', AMERICA_NEW_YORCK, ZoneOffset.ofHours(-4)],
['2016-11-06T01:30', AMERICA_NEW_YORCK, ZoneOffset.ofHours(-5)],
];
};
dataProviderTest(testLocalToZoneEquality, (localDateTimeAsString, zone, preferredOffset) => {
const ldt = LocalDateTime.parse(localDateTimeAsString);
const zdt = ZonedDateTime.ofLocal(ldt, zone, preferredOffset);
expect(zdt.offset()).to.equal(preferredOffset);
});
});
});
describe('isValidOffset', () => {
it('should return true for valid offsets', () => {
const testLocalToZoneEquality = () => {
return [
// overlap
['2016-10-30T02:30', EUROPE_BERLIN, OFFSET_PONE, true],
['2016-10-30T02:30', EUROPE_BERLIN, OFFSET_PTWO, true],
['2016-10-30T02:30', EUROPE_BERLIN, OFFSET_PTHREE, false],
['2016-11-06T01:30', AMERICA_NEW_YORCK, OFFSET_MFOUR, true],
['2016-11-06T01:30', AMERICA_NEW_YORCK, OFFSET_MFIVE, true],
['2016-11-06T01:30', AMERICA_NEW_YORCK, OFFSET_ZERO, false],
// gap
['2016-03-27T02:30', EUROPE_BERLIN, OFFSET_PONE, false],
['2016-03-27T02:30', EUROPE_BERLIN, OFFSET_PTWO, false],
['2016-03-13T02:30', AMERICA_NEW_YORCK, OFFSET_MFOUR, false],
['2016-03-13T02:30', AMERICA_NEW_YORCK, OFFSET_MFIVE, false],
// no transition
['2016-01-01T02:30', EUROPE_BERLIN, OFFSET_PONE, true],
['2016-01-01T02:30', EUROPE_BERLIN, OFFSET_PTWO, false],
['2016-06-01T02:30', EUROPE_BERLIN, OFFSET_PONE, false],
['2016-06-01T02:30', EUROPE_BERLIN, OFFSET_PTWO, true],
['2016-01-13T02:30', AMERICA_NEW_YORCK, OFFSET_MFOUR, false],
['2016-01-13T02:30', AMERICA_NEW_YORCK, OFFSET_MFIVE, true],
['2016-06-13T02:30', AMERICA_NEW_YORCK, OFFSET_MFOUR, true],
['2016-06-13T02:30', AMERICA_NEW_YORCK, OFFSET_MFIVE, false],
];
};
dataProviderTest(testLocalToZoneEquality, (localDateTimeAsString, zone, offset, isValid) => {
const ldt = LocalDateTime.parse(localDateTimeAsString);
const rules = zone.rules();
expect(rules.isValidOffset(ldt, offset)).to.equal(isValid);
});
});
});
describe('equals()', function () {
it('should equal', () => {
expect(ZoneId.of('Europe/Berlin').rules().equals(ZoneId.of('Europe/Berlin').rules())).to.be.true;
expect(EUROPE_BERLIN.rules().equals(EUROPE_BERLIN.rules())).to.be.true;
});
it('should not equal', () => {
expect(ZoneId.of('Europe/Berlin').rules().equals(ZoneId.of('Europe/Paris').rules())).to.be.false;
expect(EUROPE_BERLIN.rules().equals(AMERICA_NEW_YORCK.rules())).to.be.false;
expect(EUROPE_BERLIN.rules().equals(null)).to.be.false;
expect(EUROPE_BERLIN.rules().equals({})).to.be.false;
});
});
describe('toString()', function () {
it('should return zone name', () => {
expect(ZoneId.of('Europe/Berlin').rules().toString()).to.equal('Europe/Berlin');
expect(AMERICA_NEW_YORCK.rules().toString()).to.equal('America/New_York');
});
});
describe('not supported', () => {
it('should throw an error for not supported ZoneRule functionality', () => {
const rules = MomentZoneRulesProvider.getRules('Europe/London');
expect(() => rules.standardOffset()).to.throw(Error);
expect(() => rules.daylightSavings()).to.throw(Error);
expect(() => rules.isDaylightSavings()).to.throw(Error);
expect(() => rules.nextTransition()).to.throw(Error);
expect(() => rules.previousTransition()).to.throw(Error);
expect(() => rules.transitions()).to.throw(Error);
expect(() => rules.transitionRules()).to.throw(Error);
});
});
function createInstant(year, month, day, hour, min, zoneOffset) {
return LocalDateTime.of(year, month, day, hour, min, 0).toInstant(zoneOffset);
}
function createLocalDateTime(year, month, day, hour, min) {
return LocalDateTime.of(year, month, day, hour, min);
}
});