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Viewing: pp-11duration.t

BEGIN {
    $ENV{PERL_DATETIME_PP} = 1;
}

use strict;
use warnings;

use Test::Fatal;
use Test::More;

use DateTime;
use DateTime::Duration;

{
    my %pairs = (
        years       => 1,
        months      => 2,
        weeks       => 3,
        days        => 4,
        hours       => 6,
        minutes     => 7,
        seconds     => 8,
        nanoseconds => 9,
    );

    my $dur = DateTime::Duration->new(%pairs);

    while ( my ( $unit, $val ) = each %pairs ) {
        is( $dur->$unit(), $val, "$unit should be $val" );
    }

    is( $dur->delta_months,      14,  'delta_months' );
    is( $dur->delta_days,        25,  'delta_days' );
    is( $dur->delta_minutes,     367, 'delta_minutes' );
    is( $dur->delta_seconds,     8,   'delta_seconds' );
    is( $dur->delta_nanoseconds, 9,   'delta_nanoseconds' );

    is( $dur->in_units('months'),  14,  'in_units months' );
    is( $dur->in_units('days'),    25,  'in_units days' );
    is( $dur->in_units('minutes'), 367, 'in_units minutes' );
    is( $dur->in_units('seconds'), 8,   'in_units seconds' );
    is(
        $dur->in_units( 'nanoseconds', 'seconds' ), 9,
        'in_units nanoseconds, seconds'
    );

    is( $dur->in_units('years'), 1, 'in_units years' );
    is( $dur->in_units( 'months', 'years' ), 2, 'in_units months, years' );
    is( $dur->in_units('weeks'), 3, 'in_units weeks' );
    is( $dur->in_units( 'days', 'weeks' ), 4, 'in_units days, weeks' );
    is( $dur->in_units('hours'), 6, 'in_units hours' );
    is( $dur->in_units( 'minutes', 'hours' ), 7, 'in_units minutes, hours' );
    is(
        $dur->in_units('nanoseconds'), 8_000_000_009,
        'in_units nanoseconds'
    );

    my (
        $years,   $months,  $weeks, $days, $hours,
        $minutes, $seconds, $nanoseconds
        )
        = $dur->in_units(
        qw( years months weeks days hours
            minutes seconds nanoseconds )
        );

    is( $years,       1, 'in_units years, list context' );
    is( $months,      2, 'in_units months, list context' );
    is( $weeks,       3, 'in_units weeks, list context' );
    is( $days,        4, 'in_units days, list context' );
    is( $hours,       6, 'in_units hours, list context' );
    is( $minutes,     7, 'in_units minutes, list context' );
    is( $seconds,     8, 'in_units seconds, list context' );
    is( $nanoseconds, 9, 'in_units nanoseconds, list context' );

    ok( $dur->is_positive,  'should be positive' );
    ok( !$dur->is_zero,     'should not be zero' );
    ok( !$dur->is_negative, 'should not be negative' );

    ok( $dur->is_wrap_mode, 'wrap mode' );
}
{
    my %pairs = (
        years       => 1,
        months      => 2,
        weeks       => 3,
        days        => 4,
        hours       => 6,
        minutes     => 7,
        seconds     => 8,
        nanoseconds => 9,
    );

    my $dur = DateTime::Duration->new( %pairs, end_of_month => 'limit' );

    my $calendar_dur = $dur->calendar_duration;
    is( $calendar_dur->delta_months,  14, 'date - delta_months is 14' );
    is( $calendar_dur->delta_minutes, 0,  'date - delta_minutes is 0' );
    is( $calendar_dur->delta_seconds, 0,  'date - delta_seconds is 0' );
    is(
        $calendar_dur->delta_nanoseconds, 0,
        'date - delta_nanoseconds is 0'
    );
    ok( $calendar_dur->is_limit_mode, 'limit mode' );

    my $clock_dur = $dur->clock_duration;
    is( $clock_dur->delta_months,  0,   'time  - delta_months is 0' );
    is( $clock_dur->delta_minutes, 367, 'time  - delta_minutes is 367' );
    is( $clock_dur->delta_seconds, 8,   'time  - delta_seconds is 8' );
    is( $clock_dur->delta_nanoseconds, 9, 'time  - delta_nanoseconds is 9' );
    ok( $clock_dur->is_limit_mode, 'limit mode' );
}

{
    my $dur = DateTime::Duration->new( days => 1, end_of_month => 'limit' );
    ok( $dur->is_limit_mode, 'limit mode' );
}

{
    my $dur
        = DateTime::Duration->new( days => 1, end_of_month => 'preserve' );
    ok( $dur->is_preserve_mode, 'preserve mode' );
}

my $leap_day = DateTime->new(
    year      => 2004, month => 2, day => 29,
    time_zone => 'UTC',
);

{
    my $new = $leap_day + DateTime::Duration->new(
        years        => 1,
        end_of_month => 'wrap'
    );

    is( $new->date, '2005-03-01', 'new date should be 2005-03-01' );
}

{
    my $new = $leap_day + DateTime::Duration->new(
        years        => 1,
        end_of_month => 'limit'
    );

    is( $new->date, '2005-02-28', 'new date should be 2005-02-28' );
}

{
    my $new = $leap_day + DateTime::Duration->new(
        years        => 1,
        end_of_month => 'preserve'
    );

    is( $new->date, '2005-02-28', 'new date should be 2005-02-28' );

    my $new2 = $leap_day + DateTime::Duration->new(
        months       => 1,
        end_of_month => 'preserve'
    );
    is( $new2->date, '2004-03-31', 'new date should be 2004-03-31' );
}

{
    my $inverse = DateTime::Duration->new(
        years => 1, months  => 1,
        weeks => 1, days    => 1,
        hours => 1, minutes => 2, seconds => 3,
    )->inverse;

    is( $inverse->years,   1, 'inverse years should be positive' );
    is( $inverse->months,  1, 'inverse months should be positive' );
    is( $inverse->weeks,   1, 'inverse weeks should be positive' );
    is( $inverse->days,    1, 'inverse days should be positive' );
    is( $inverse->hours,   1, 'inverse hours should be positive' );
    is( $inverse->minutes, 2, 'inverse minutes should be positive' );
    is( $inverse->seconds, 3, 'inverse minutes should be positive' );

    is(
        $inverse->delta_months, -13,
        'inverse delta months should be negative'
    );
    is( $inverse->delta_days, -8, 'inverse delta months should be negative' );
    is(
        $inverse->delta_minutes, -62,
        'inverse delta minutes should be negative'
    );
    is(
        $inverse->delta_seconds, -3,
        'inverse delta seconds should be negative'
    );

    ok( $inverse->is_negative,  'should be negative' );
    ok( !$inverse->is_zero,     'should not be zero' );
    ok( !$inverse->is_positive, 'should not be positivea' );

    is(
        $inverse->end_of_month_mode(), 'preserve',
        'inverse method uses default end_of_month_mode without explicit parameter'
    );

    my $inverse2 = DateTime::Duration->new( years => 1 )
        ->inverse( end_of_month => 'limit' );

    is(
        $inverse2->end_of_month_mode(), 'limit',
        'inverse method allows setting end_of_month_mode'
    );
}

{
    my $dur1 = DateTime::Duration->new( months => 6, days => 10 );

    my $dur2 = DateTime::Duration->new( months => 3, days => 7 );

    my $new1 = $dur1 + $dur2;
    is( $new1->delta_months, 9,  'test + overloading' );
    is( $new1->delta_days,   17, 'test + overloading' );

    my $new2 = $dur1 - $dur2;
    is( $new2->delta_months, 3, 'test - overloading' );
    is( $new2->delta_days,   3, 'test - overloading' );

    my $new3 = $dur2 - $dur1;
    is( $new3->delta_months, -3, 'test - overloading' );
    is( $new3->delta_days,   -3, 'test - overloading' );
}

{
    my $dur1 = DateTime::Duration->new( months => 6, days => 10 );

    my $new1 = $dur1 * 4;
    is( $new1->delta_months, 24, 'test * overloading' );
    is( $new1->delta_days,   40, 'test * overloading' );

    $dur1->multiply(4);
    is( $dur1->delta_months, 24, 'test multiply' );
    is( $dur1->delta_days,   40, 'test multiply' );
}

{
    my $dur1 = DateTime::Duration->new(
        months      => 6, days => 10, seconds => 3,
        nanoseconds => 1_200_300_400
    );

    my $dur2
        = DateTime::Duration->new( seconds => 1, nanoseconds => 500_000_000 );

    is( $dur1->delta_seconds,     4,           'test nanoseconds overflow' );
    is( $dur1->delta_nanoseconds, 200_300_400, 'test nanoseconds remainder' );

    my $new1 = $dur1 - $dur2;

    is( $new1->delta_seconds, 2, 'seconds is positive' );
    is(
        $new1->delta_nanoseconds, 700_300_400,
        'nanoseconds remainder is negative'
    );

    $new1->add( nanoseconds => 500_000_000 );
    is( $new1->delta_seconds,     3,           'seconds are unaffected' );
    is( $new1->delta_nanoseconds, 200_300_400, 'nanoseconds are back' );

    my $new2 = $dur1 - $dur2;
    $new2->add( nanoseconds => 1_500_000_000 );
    is( $new2->delta_seconds,     4,           'seconds go up' );
    is( $new2->delta_nanoseconds, 200_300_400, 'nanoseconds are normalized' );

    $new2->subtract( nanoseconds => 100_000_000 );
    is( $new2->delta_nanoseconds, 100_300_400, 'sub nanoseconds works' );

    my $new3 = $dur2 * 3;

    is( $new3->delta_seconds, 4, 'seconds normalized after multiplication' );
    is(
        $new3->delta_nanoseconds, 500_000_000,
        'nanoseconds normalized after multiplication'
    );
}

{
    my $dur1 = DateTime::Duration->new( seconds => 1 );
    my $dur2 = DateTime::Duration->new( seconds => 1 );

    $dur1->add($dur2);
    is(
        $dur1->delta_seconds, 2,
        'add method works with a duration object'
    );

    $dur1->subtract($dur2);
    is(
        $dur1->delta_seconds, 1,
        'subtract method works with a duration object'
    );
}

{
    my $dur = DateTime::Duration->new( nanoseconds => -10 );
    is( $dur->nanoseconds,       10,  'nanoseconds is 10' );
    is( $dur->delta_nanoseconds, -10, 'delta_nanoseconds is -10' );
    ok( $dur->is_negative, 'duration is negative' );
}

{
    my $dur = DateTime::Duration->new( days => 0 );
    is( $dur->delta_days, 0, 'delta_days is 0' );
    ok( !$dur->is_positive, 'not positive' );
    ok( $dur->is_zero,      'is zero' );
    ok( !$dur->is_negative, 'not negative' );
}

{
    my $dur = DateTime::Duration->new( days => 29 );

    like(
        exception {
            $dur * 5.3
        },
        qr/Validation failed/,
        'non integer multiplication'
    );
}

{
    is(
        exception {
            DateTime::Duration->new( months => 3 )->add( hours => -3 )
                ->add( minutes => 1 );
        },
        undef,
        'method chaining should work'
    );
}

{
    my $min_1  = DateTime::Duration->new( minutes => 1 );
    my $hour_1 = DateTime::Duration->new( hours   => 1 );

    my $min_59 = $hour_1 - $min_1;

    is( $min_59->delta_months,      0,  'delta_months is 0' );
    is( $min_59->delta_days,        0,  'delta_days is 0' );
    is( $min_59->delta_minutes,     59, 'delta_minutes is 59' );
    is( $min_59->delta_seconds,     0,  'delta_seconds is 0' );
    is( $min_59->delta_nanoseconds, 0,  'delta_nanoseconds is 0' );

    my $min_neg_59 = $min_1 - $hour_1;

    is( $min_neg_59->delta_months,      0,   'delta_months is 0' );
    is( $min_neg_59->delta_days,        0,   'delta_days is 0' );
    is( $min_neg_59->delta_minutes,     -59, 'delta_minutes is -59' );
    is( $min_neg_59->delta_seconds,     0,   'delta_seconds is 0' );
    is( $min_neg_59->delta_nanoseconds, 0,   'delta_nanoseconds is 0' );
}

{
    my $dur1 = DateTime::Duration->new( minutes => 10 );
    my $dur2 = DateTime::Duration->new( minutes => 20 );

    like(
        exception { 1 if $dur1 <=> $dur2 },
        qr/does not overload comparison/,
        'check error for duration comparison overload'
    );

    is(
        DateTime::Duration->compare( $dur1, $dur2 ), -1,
        '20 minutes is greater than 10 minutes'
    );

    is(
        DateTime::Duration->compare(
            $dur1, $dur2, DateTime->new( year => 1 )
        ),
        -1,
        '20 minutes is greater than 10 minutes'
    );
}

{
    my $dur1 = DateTime::Duration->new( days   => 29 );
    my $dur2 = DateTime::Duration->new( months => 1 );

    my $base = DateTime->new( year => 2004 );
    is(
        DateTime::Duration->compare( $dur1, $dur2, $base ), -1,
        '29 days is less than 1 month with base of 2004-01-01'
    );

    $base = DateTime->new( year => 2004, month => 2 );
    is(
        DateTime::Duration->compare( $dur1, $dur2, $base ), 0,
        '29 days is equal to 1 month with base of 2004-02-01'
    );

    $base = DateTime->new( year => 2005, month => 2 );
    is(
        DateTime::Duration->compare( $dur1, $dur2, $base ), 1,
        '29 days is greater than 1 month with base of 2005-02-01'
    );
}

{
    my $dur1 = DateTime::Duration->new(
        nanoseconds => 1_000,
        seconds     => 1,
    );

    my $dur2 = $dur1->clone->subtract( nanoseconds => 5_000 );

    is( $dur2->delta_seconds, 0, 'normalize nanoseconds to positive' );
    is(
        $dur2->delta_nanoseconds, 999_996_000,
        'normalize nanoseconds to positive'
    );

    my $dur3 = $dur1->clone->subtract( nanoseconds => 6_000 )
        ->subtract( nanoseconds => 999_999_000 );

    is( $dur3->delta_seconds, 0, 'normalize nanoseconds to negative' );
    is(
        $dur3->delta_nanoseconds, -4_000,
        'normalize nanoseconds to negative'
    );

    my $dur4 = DateTime::Duration->new(
        seconds     => -1,
        nanoseconds => -2_500_000_000
    );

    is( $dur4->delta_seconds, -3, 'normalize many negative nanoseconds' );
    is(
        $dur4->delta_nanoseconds, -500_000_000,
        'normalize many negative nanoseconds'
    );
}

{
    my $dur = DateTime::Duration->new(
        minutes => 30,
        seconds => -1,
    );

    ok( !$dur->is_positive, 'is not positive' );
    ok( !$dur->is_zero,     'is not zero' );
    ok( !$dur->is_negative, 'is not negative' );
}

{
    my $dur = DateTime::Duration->new( minutes => 50 );

    is( $dur->in_units('years'),   0, 'in_units returns 0 for years' );
    is( $dur->in_units('months'),  0, 'in_units returns 0 for months' );
    is( $dur->in_units('days'),    0, 'in_units returns 0 for days' );
    is( $dur->in_units('hours'),   0, 'in_units returns 0 for hours' );
    is( $dur->in_units('seconds'), 0, 'in_units returns 0 for seconds' );
    is(
        $dur->in_units('nanoseconds'), 0,
        'in_units returns 0 for nanoseconds'
    );
}

{
    local $TODO = 'reject fractional units in DateTime::Duration->new';

    like(
        exception { DateTime::Duration->new( minutes => 50.2 ) },
        qr/is an integer/,
        'cannot create a duration with fractional units'
    );
}

done_testing();
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