import { module, test } from '../qunit';
import moment from '../../moment';

module('utc offset');

test('setter / getter blackbox', function (assert) {
    var m = moment([2010]);

    assert.equal(m.clone().utcOffset(0).utcOffset(), 0, 'utcOffset 0');

    assert.equal(m.clone().utcOffset(1).utcOffset(), 60, 'utcOffset 1 is 60');
    assert.equal(m.clone().utcOffset(60).utcOffset(), 60, 'utcOffset 60');
    assert.equal(
        m.clone().utcOffset('+01:00').utcOffset(),
        60,
        'utcOffset +01:00 is 60'
    );
    assert.equal(
        m.clone().utcOffset('+0100').utcOffset(),
        60,
        'utcOffset +0100 is 60'
    );

    assert.equal(
        m.clone().utcOffset(-1).utcOffset(),
        -60,
        'utcOffset -1 is -60'
    );
    assert.equal(m.clone().utcOffset(-60).utcOffset(), -60, 'utcOffset -60');
    assert.equal(
        m.clone().utcOffset('-01:00').utcOffset(),
        -60,
        'utcOffset -01:00 is -60'
    );
    assert.equal(
        m.clone().utcOffset('-0100').utcOffset(),
        -60,
        'utcOffset -0100 is -60'
    );

    assert.equal(
        m.clone().utcOffset(1.5).utcOffset(),
        90,
        'utcOffset 1.5 is 90'
    );
    assert.equal(
        m.clone().utcOffset(90).utcOffset(),
        90,
        'utcOffset 1.5 is 90'
    );
    assert.equal(
        m.clone().utcOffset('+01:30').utcOffset(),
        90,
        'utcOffset +01:30 is 90'
    );
    assert.equal(
        m.clone().utcOffset('+0130').utcOffset(),
        90,
        'utcOffset +0130 is 90'
    );

    assert.equal(m.clone().utcOffset(-1.5).utcOffset(), -90, 'utcOffset -1.5');
    assert.equal(m.clone().utcOffset(-90).utcOffset(), -90, 'utcOffset -90');
    assert.equal(
        m.clone().utcOffset('-01:30').utcOffset(),
        -90,
        'utcOffset +01:30 is 90'
    );
    assert.equal(
        m.clone().utcOffset('-0130').utcOffset(),
        -90,
        'utcOffset +0130 is 90'
    );
    assert.equal(
        m.clone().utcOffset('+00:10').utcOffset(),
        10,
        'utcOffset +00:10 is 10'
    );
    assert.equal(
        m.clone().utcOffset('-00:10').utcOffset(),
        -10,
        'utcOffset +00:10 is 10'
    );
    assert.equal(
        m.clone().utcOffset('+0010').utcOffset(),
        10,
        'utcOffset +0010 is 10'
    );
    assert.equal(
        m.clone().utcOffset('-0010').utcOffset(),
        -10,
        'utcOffset +0010 is 10'
    );
});

test('utcOffset shorthand hours -> minutes', function (assert) {
    var i;
    for (i = -15; i <= 15; ++i) {
        assert.equal(
            moment().utcOffset(i).utcOffset(),
            i * 60,
            '' + i + ' -> ' + i * 60
        );
    }
    assert.equal(moment().utcOffset(-16).utcOffset(), -16, '-16 -> -16');
    assert.equal(moment().utcOffset(16).utcOffset(), 16, '16 -> 16');
});

test('isLocal, isUtc, isUtcOffset', function (assert) {
    assert.ok(moment().isLocal(), 'moment() creates objects in local time');
    assert.ok(
        !moment.utc().isLocal(),
        'moment.utc creates objects NOT in local time'
    );
    assert.ok(
        moment.utc().local().isLocal(),
        'moment.fn.local() converts to local time'
    );
    assert.ok(
        !moment().utcOffset(5).isLocal(),
        'moment.fn.utcOffset(N) puts objects NOT in local time'
    );
    assert.ok(
        moment().utcOffset(5).local().isLocal(),
        'moment.fn.local() converts to local time'
    );

    assert.ok(moment.utc().isUtc(), 'moment.utc() creates objects in utc time');
    assert.ok(
        moment().utcOffset(0).isUtc(),
        'utcOffset(0) is equivalent to utc mode'
    );
    assert.ok(
        !moment().utcOffset(1).isUtc(),
        'utcOffset(1) is NOT equivalent to utc mode'
    );

    assert.ok(
        !moment().isUtcOffset(),
        'moment() creates objects NOT in utc-offset mode'
    );
    assert.ok(
        moment.utc().isUtcOffset(),
        'moment.utc() creates objects in utc-offset mode'
    );
    assert.ok(
        moment().utcOffset(3).isUtcOffset(),
        'utcOffset(N != 0) creates objects in utc-offset mode'
    );
    assert.ok(
        moment().utcOffset(0).isUtcOffset(),
        'utcOffset(0) creates objects in utc-offset mode'
    );
});

test('isUTC', function (assert) {
    assert.ok(moment.utc().isUTC(), 'moment.utc() creates objects in utc time');
    assert.ok(
        moment().utcOffset(0).isUTC(),
        'utcOffset(0) is equivalent to utc mode'
    );
    assert.ok(
        !moment().utcOffset(1).isUTC(),
        'utcOffset(1) is NOT equivalent to utc mode'
    );
});

test('change hours when changing the utc offset', function (assert) {
    var m = moment.utc([2000, 0, 1, 6]);
    assert.equal(m.hour(), 6, 'UTC 6AM should be 6AM at +0000');

    // sanity check
    m.utcOffset(0);
    assert.equal(m.hour(), 6, 'UTC 6AM should be 6AM at +0000');

    m.utcOffset(-60);
    assert.equal(m.hour(), 5, 'UTC 6AM should be 5AM at -0100');

    m.utcOffset(60);
    assert.equal(m.hour(), 7, 'UTC 6AM should be 7AM at +0100');
});

test('change minutes when changing the utc offset', function (assert) {
    var m = moment.utc([2000, 0, 1, 6, 31]);

    m.utcOffset(0);
    assert.equal(
        m.format('HH:mm'),
        '06:31',
        'UTC 6:31AM should be 6:31AM at +0000'
    );

    m.utcOffset(-30);
    assert.equal(
        m.format('HH:mm'),
        '06:01',
        'UTC 6:31AM should be 6:01AM at -0030'
    );

    m.utcOffset(30);
    assert.equal(
        m.format('HH:mm'),
        '07:01',
        'UTC 6:31AM should be 7:01AM at +0030'
    );

    m.utcOffset(-1380);
    assert.equal(
        m.format('HH:mm'),
        '07:31',
        'UTC 6:31AM should be 7:31AM at +1380'
    );
});

test('distance from the unix epoch', function (assert) {
    var zoneA = moment(),
        zoneB = moment(zoneA),
        zoneC = moment(zoneA),
        zoneD = moment(zoneA),
        zoneE = moment(zoneA);

    zoneB.utc();
    assert.equal(+zoneA, +zoneB, 'moment should equal moment.utc');

    zoneC.utcOffset(60);
    assert.equal(+zoneA, +zoneC, 'moment should equal moment.utcOffset(60)');

    zoneD.utcOffset(-480);
    assert.equal(+zoneA, +zoneD, 'moment should equal moment.utcOffset(-480)');

    zoneE.utcOffset(-1000);
    assert.equal(+zoneA, +zoneE, 'moment should equal moment.utcOffset(-1000)');
});

test('update offset after changing any values', function (assert) {
    var oldOffset = moment.updateOffset,
        m = moment.utc([2000, 6, 1]);

    moment.updateOffset = function (mom, keepTime) {
        if (mom.__doChange) {
            if (+mom > 962409600000) {
                mom.utcOffset(-120, keepTime);
            } else {
                mom.utcOffset(-60, keepTime);
            }
        }
    };

    assert.equal(m.format('ZZ'), '+0000', 'should be at +0000');
    assert.equal(
        m.format('HH:mm'),
        '00:00',
        'should start 12AM at +0000 timezone'
    );

    m.__doChange = true;
    m.add(1, 'h');

    assert.equal(m.format('ZZ'), '-0200', 'should be at -0200');
    assert.equal(
        m.format('HH:mm'),
        '23:00',
        '1AM at +0000 should be 11PM at -0200 timezone'
    );

    m.subtract(1, 'h');

    assert.equal(m.format('ZZ'), '-0100', 'should be at -0100');
    assert.equal(
        m.format('HH:mm'),
        '23:00',
        '12AM at +0000 should be 11PM at -0100 timezone'
    );

    moment.updateOffset = oldOffset;
});

//////////////////
test('getters and setters', function (assert) {
    var a = moment([2011, 5, 20]);

    assert.equal(
        a.clone().utcOffset(-120).year(2012).year(),
        2012,
        'should get and set year correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).month(1).month(),
        1,
        'should get and set month correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).date(2).date(),
        2,
        'should get and set date correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).day(1).day(),
        1,
        'should get and set day correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).hour(1).hour(),
        1,
        'should get and set hour correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).minute(1).minute(),
        1,
        'should get and set minute correctly'
    );
});

test('getters', function (assert) {
    var a = moment.utc([2012, 0, 1, 0, 0, 0]);

    assert.equal(
        a.clone().utcOffset(-120).year(),
        2011,
        'should get year correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).month(),
        11,
        'should get month correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).date(),
        31,
        'should get date correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).hour(),
        22,
        'should get hour correctly'
    );
    assert.equal(
        a.clone().utcOffset(-120).minute(),
        0,
        'should get minute correctly'
    );

    assert.equal(
        a.clone().utcOffset(120).year(),
        2012,
        'should get year correctly'
    );
    assert.equal(
        a.clone().utcOffset(120).month(),
        0,
        'should get month correctly'
    );
    assert.equal(
        a.clone().utcOffset(120).date(),
        1,
        'should get date correctly'
    );
    assert.equal(
        a.clone().utcOffset(120).hour(),
        2,
        'should get hour correctly'
    );
    assert.equal(
        a.clone().utcOffset(120).minute(),
        0,
        'should get minute correctly'
    );

    assert.equal(
        a.clone().utcOffset(90).year(),
        2012,
        'should get year correctly'
    );
    assert.equal(
        a.clone().utcOffset(90).month(),
        0,
        'should get month correctly'
    );
    assert.equal(
        a.clone().utcOffset(90).date(),
        1,
        'should get date correctly'
    );
    assert.equal(
        a.clone().utcOffset(90).hour(),
        1,
        'should get hour correctly'
    );
    assert.equal(
        a.clone().utcOffset(90).minute(),
        30,
        'should get minute correctly'
    );
});

test('from', function (assert) {
    var zoneA = moment(),
        zoneB = moment(zoneA).utcOffset(-720),
        zoneC = moment(zoneA).utcOffset(-360),
        zoneD = moment(zoneA).utcOffset(690),
        other = moment(zoneA).add(35, 'm');

    assert.equal(
        zoneA.from(other),
        zoneB.from(other),
        'moment#from should be the same in all zones'
    );
    assert.equal(
        zoneA.from(other),
        zoneC.from(other),
        'moment#from should be the same in all zones'
    );
    assert.equal(
        zoneA.from(other),
        zoneD.from(other),
        'moment#from should be the same in all zones'
    );
});

test('diff', function (assert) {
    var zoneA = moment(),
        zoneB = moment(zoneA).utcOffset(-720),
        zoneC = moment(zoneA).utcOffset(-360),
        zoneD = moment(zoneA).utcOffset(690),
        other = moment(zoneA).add(35, 'm');

    assert.equal(
        zoneA.diff(other),
        zoneB.diff(other),
        'moment#diff should be the same in all zones'
    );
    assert.equal(
        zoneA.diff(other),
        zoneC.diff(other),
        'moment#diff should be the same in all zones'
    );
    assert.equal(
        zoneA.diff(other),
        zoneD.diff(other),
        'moment#diff should be the same in all zones'
    );

    assert.equal(
        zoneA.diff(other, 'minute', true),
        zoneB.diff(other, 'minute', true),
        'moment#diff should be the same in all zones'
    );
    assert.equal(
        zoneA.diff(other, 'minute', true),
        zoneC.diff(other, 'minute', true),
        'moment#diff should be the same in all zones'
    );
    assert.equal(
        zoneA.diff(other, 'minute', true),
        zoneD.diff(other, 'minute', true),
        'moment#diff should be the same in all zones'
    );

    assert.equal(
        zoneA.diff(other, 'hour', true),
        zoneB.diff(other, 'hour', true),
        'moment#diff should be the same in all zones'
    );
    assert.equal(
        zoneA.diff(other, 'hour', true),
        zoneC.diff(other, 'hour', true),
        'moment#diff should be the same in all zones'
    );
    assert.equal(
        zoneA.diff(other, 'hour', true),
        zoneD.diff(other, 'hour', true),
        'moment#diff should be the same in all zones'
    );
});

test('unix offset and timestamp', function (assert) {
    var zoneA = moment(),
        zoneB = moment(zoneA).utcOffset(-720),
        zoneC = moment(zoneA).utcOffset(-360),
        zoneD = moment(zoneA).utcOffset(690);

    assert.equal(
        zoneA.unix(),
        zoneB.unix(),
        'moment#unix should be the same in all zones'
    );
    assert.equal(
        zoneA.unix(),
        zoneC.unix(),
        'moment#unix should be the same in all zones'
    );
    assert.equal(
        zoneA.unix(),
        zoneD.unix(),
        'moment#unix should be the same in all zones'
    );

    assert.equal(
        +zoneA,
        +zoneB,
        'moment#valueOf should be the same in all zones'
    );
    assert.equal(
        +zoneA,
        +zoneC,
        'moment#valueOf should be the same in all zones'
    );
    assert.equal(
        +zoneA,
        +zoneD,
        'moment#valueOf should be the same in all zones'
    );
});

test('cloning', function (assert) {
    assert.equal(
        moment().utcOffset(-120).clone().utcOffset(),
        -120,
        'explicit cloning should retain the offset'
    );
    assert.equal(
        moment().utcOffset(120).clone().utcOffset(),
        120,
        'explicit cloning should retain the offset'
    );
    assert.equal(
        moment(moment().utcOffset(-120)).utcOffset(),
        -120,
        'implicit cloning should retain the offset'
    );
    assert.equal(
        moment(moment().utcOffset(120)).utcOffset(),
        120,
        'implicit cloning should retain the offset'
    );
});

test('start of / end of', function (assert) {
    var a = moment.utc([2010, 1, 2, 0, 0, 0]).utcOffset(-450);

    assert.equal(
        a.clone().startOf('day').hour(),
        0,
        'start of day should work on moments with utc offset'
    );
    assert.equal(
        a.clone().startOf('day').minute(),
        0,
        'start of day should work on moments with utc offset'
    );
    assert.equal(
        a.clone().startOf('hour').minute(),
        0,
        'start of hour should work on moments with utc offset'
    );

    assert.equal(
        a.clone().endOf('day').hour(),
        23,
        'end of day should work on moments with utc offset'
    );
    assert.equal(
        a.clone().endOf('day').minute(),
        59,
        'end of day should work on moments with utc offset'
    );
    assert.equal(
        a.clone().endOf('hour').minute(),
        59,
        'end of hour should work on moments with utc offset'
    );
});

test('reset offset with moment#utc', function (assert) {
    var a = moment.utc([2012]).utcOffset(-480);

    assert.equal(
        a.clone().hour(),
        16,
        'different utc offset should have different hour'
    );
    assert.equal(
        a.clone().utc().hour(),
        0,
        'calling moment#utc should reset the offset'
    );
});

test('reset offset with moment#local', function (assert) {
    var a = moment([2012]).utcOffset(-480);

    assert.equal(
        a.clone().local().hour(),
        0,
        'calling moment#local should reset the offset'
    );
});

test('toDate', function (assert) {
    var zoneA = new Date(),
        zoneB = moment(zoneA).utcOffset(-720).toDate(),
        zoneC = moment(zoneA).utcOffset(-360).toDate(),
        zoneD = moment(zoneA).utcOffset(690).toDate();

    assert.equal(
        +zoneA,
        +zoneB,
        'moment#toDate should output a date with the right unix timestamp'
    );
    assert.equal(
        +zoneA,
        +zoneC,
        'moment#toDate should output a date with the right unix timestamp'
    );
    assert.equal(
        +zoneA,
        +zoneD,
        'moment#toDate should output a date with the right unix timestamp'
    );
});

test('same / before / after', function (assert) {
    var zoneA = moment().utc(),
        zoneB = moment(zoneA).utcOffset(-120),
        zoneC = moment(zoneA).utcOffset(120);

    assert.ok(
        zoneA.isSame(zoneB),
        'two moments with different offsets should be the same'
    );
    assert.ok(
        zoneA.isSame(zoneC),
        'two moments with different offsets should be the same'
    );

    assert.ok(
        zoneA.isSame(zoneB, 'hour'),
        'two moments with different offsets should be the same hour'
    );
    assert.ok(
        zoneA.isSame(zoneC, 'hour'),
        'two moments with different offsets should be the same hour'
    );

    zoneA.add(1, 'hour');

    assert.ok(
        zoneA.isAfter(zoneB),
        'isAfter should work with two moments with different offsets'
    );
    assert.ok(
        zoneA.isAfter(zoneC),
        'isAfter should work with two moments with different offsets'
    );

    assert.ok(
        zoneA.isAfter(zoneB, 'hour'),
        'isAfter:hour should work with two moments with different offsets'
    );
    assert.ok(
        zoneA.isAfter(zoneC, 'hour'),
        'isAfter:hour should work with two moments with different offsets'
    );

    zoneA.subtract(2, 'hour');

    assert.ok(
        zoneA.isBefore(zoneB),
        'isBefore should work with two moments with different offsets'
    );
    assert.ok(
        zoneA.isBefore(zoneC),
        'isBefore should work with two moments with different offsets'
    );

    assert.ok(
        zoneA.isBefore(zoneB, 'hour'),
        'isBefore:hour should work with two moments with different offsets'
    );
    assert.ok(
        zoneA.isBefore(zoneC, 'hour'),
        'isBefore:hour should work with two moments with different offsets'
    );
});

test('add / subtract over dst', function (assert) {
    var oldOffset = moment.updateOffset,
        m = moment.utc([2000, 2, 31, 3]);

    moment.updateOffset = function (mom, keepTime) {
        if (mom.clone().utc().month() > 2) {
            mom.utcOffset(60, keepTime);
        } else {
            mom.utcOffset(0, keepTime);
        }
    };

    assert.equal(m.hour(), 3, 'should start at 00:00');

    m.add(24, 'hour');

    assert.equal(m.hour(), 4, 'adding 24 hours should disregard dst');

    m.subtract(24, 'hour');

    assert.equal(m.hour(), 3, 'subtracting 24 hours should disregard dst');

    m.add(1, 'day');

    assert.equal(m.hour(), 3, 'adding 1 day should have the same hour');

    m.subtract(1, 'day');

    assert.equal(m.hour(), 3, 'subtracting 1 day should have the same hour');

    m.add(1, 'month');

    assert.equal(m.hour(), 3, 'adding 1 month should have the same hour');

    m.subtract(1, 'month');

    assert.equal(m.hour(), 3, 'subtracting 1 month should have the same hour');

    moment.updateOffset = oldOffset;
});

test('isDST', function (assert) {
    var oldOffset = moment.updateOffset;

    moment.updateOffset = function (mom, keepTime) {
        if (mom.month() > 2 && mom.month() < 9) {
            mom.utcOffset(60, keepTime);
        } else {
            mom.utcOffset(0, keepTime);
        }
    };

    assert.ok(!moment().month(0).isDST(), 'Jan should not be summer dst');
    assert.ok(moment().month(6).isDST(), 'Jul should be summer dst');
    assert.ok(!moment().month(11).isDST(), 'Dec should not be summer dst');

    moment.updateOffset = function (mom) {
        if (mom.month() > 2 && mom.month() < 9) {
            mom.utcOffset(0);
        } else {
            mom.utcOffset(60);
        }
    };

    assert.ok(moment().month(0).isDST(), 'Jan should be winter dst');
    assert.ok(!moment().month(6).isDST(), 'Jul should not be winter dst');
    assert.ok(moment().month(11).isDST(), 'Dec should be winter dst');

    moment.updateOffset = oldOffset;
});

test('zone names', function (assert) {
    assert.equal(moment().zoneAbbr(), '', 'Local zone abbr should be empty');
    assert.equal(
        moment().format('z'),
        '',
        'Local zone formatted abbr should be empty'
    );
    assert.equal(moment().zoneName(), '', 'Local zone name should be empty');
    assert.equal(
        moment().format('zz'),
        '',
        'Local zone formatted name should be empty'
    );

    assert.equal(moment.utc().zoneAbbr(), 'UTC', 'UTC zone abbr should be UTC');
    assert.equal(
        moment.utc().format('z'),
        'UTC',
        'UTC zone formatted abbr should be UTC'
    );
    assert.equal(
        moment.utc().zoneName(),
        'Coordinated Universal Time',
        'UTC zone abbr should be Coordinated Universal Time'
    );
    assert.equal(
        moment.utc().format('zz'),
        'Coordinated Universal Time',
        'UTC zone formatted abbr should be Coordinated Universal Time'
    );
});

test('hours alignment with UTC', function (assert) {
    assert.equal(moment().utcOffset(-120).hasAlignedHourOffset(), true);
    assert.equal(moment().utcOffset(180).hasAlignedHourOffset(), true);
    assert.equal(moment().utcOffset(-90).hasAlignedHourOffset(), false);
    assert.equal(moment().utcOffset(90).hasAlignedHourOffset(), false);
});

test('hours alignment with other zone', function (assert) {
    var m = moment().utcOffset(-120);

    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-180)), true);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(180)), true);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-90)), false);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(90)), false);

    m = moment().utcOffset(-90);

    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-180)), false);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(180)), false);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-30)), true);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(30)), true);

    m = moment().utcOffset(60);

    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-180)), true);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(180)), true);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-90)), false);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(90)), false);

    m = moment().utcOffset(-25);

    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(35)), true);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-85)), true);

    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(-35)), false);
    assert.equal(m.hasAlignedHourOffset(moment().utcOffset(85)), false);
});

test('parse zone', function (assert) {
    var m = moment('2013-01-01T00:00:00-13:00').parseZone();
    assert.equal(m.utcOffset(), -13 * 60);
    assert.equal(m.hours(), 0);
});

test('parse UTC zone', function (assert) {
    var m = moment('2013-01-01T05:00:00+00:00').parseZone();
    assert.equal(m.utcOffset(), 0);
    assert.equal(m.hours(), 5);
});

test('parse zone static', function (assert) {
    var m = moment.parseZone('2013-01-01T00:00:00-13:00');
    assert.equal(m.utcOffset(), -13 * 60);
    assert.equal(m.hours(), 0);
});

test('parse zone with more arguments', function (assert) {
    var m;
    m = moment.parseZone('2013 01 01 05 -13:00', 'YYYY MM DD HH ZZ');
    assert.equal(
        m.format(),
        '2013-01-01T05:00:00-13:00',
        'accept input and format'
    );
    m = moment.parseZone('2013-01-01-13:00', 'YYYY MM DD ZZ', true);
    assert.equal(m.isValid(), false, 'accept input, format and strict flag');
    m = moment.parseZone('2013-01-01-13:00', [
        'DD MM YYYY ZZ',
        'YYYY MM DD ZZ',
    ]);
    assert.equal(
        m.format(),
        '2013-01-01T00:00:00-13:00',
        'accept input and array of formats'
    );
});

test('parse zone with a timezone from the format string', function (assert) {
    var m = moment('11-12-2013 -0400 +1100', 'DD-MM-YYYY ZZ #####').parseZone();

    assert.equal(m.utcOffset(), -4 * 60);
});

test('parse zone without a timezone included in the format string', function (assert) {
    var m = moment('11-12-2013 -0400 +1100', 'DD-MM-YYYY').parseZone();

    assert.equal(m.utcOffset(), 11 * 60);
});

test('timezone format', function (assert) {
    assert.equal(moment().utcOffset(60).format('ZZ'), '+0100', '-60 -> +0100');
    assert.equal(moment().utcOffset(90).format('ZZ'), '+0130', '-90 -> +0130');
    assert.equal(
        moment().utcOffset(120).format('ZZ'),
        '+0200',
        '-120 -> +0200'
    );

    assert.equal(moment().utcOffset(-60).format('ZZ'), '-0100', '+60 -> -0100');
    assert.equal(moment().utcOffset(-90).format('ZZ'), '-0130', '+90 -> -0130');
    assert.equal(
        moment().utcOffset(-120).format('ZZ'),
        '-0200',
        '+120 -> -0200'
    );
});