use strict;
use Test::More tests => 1112;
use DateTime;
{
my $dt = DateTime->new( year => 0 );
is( $dt->year, 0, 'year is 0' );
is( $dt->month, 1, 'month is 1' );
is( $dt->day, 1, 'day is 1' );
is( $dt->day_of_week, 6, 'day of week is 6' );
}
{
my $dt = DateTime->new( year => 0, month => 12, day => 31 );
is( $dt->year, 0, 'year is 0' );
is( $dt->month, 12, 'month is 12' );
is( $dt->day, 31, 'day is 31' );
is( $dt->day_of_week, 7, 'day of week is 7' );
}
{
my $dt = DateTime->new( year => -1 );
is( $dt->year, -1, 'year is -1' );
is( $dt->month, 1, 'month is 1' );
is( $dt->day, 1, 'day is 1' );
is( $dt->day_of_week, 5, 'day of week is 5' );
}
{
my $dt = DateTime->new( year => 1 );
is( $dt->year, 1, 'year is 1' );
is( $dt->month, 1, 'month is 1' );
is( $dt->day, 1, 'day is 1' );
is( $dt->day_of_week, 1, 'day of week is 1' );
}
{
my $dow = 1;
for my $year (1, 0, -1)
{
my $days_in_year = $year ? 365 : 366;
for my $doy (reverse 1..$days_in_year)
{
is( DateTime->from_day_of_year( year => $year,
day_of_year => $doy,
)->day_of_week,
$dow,
"day of week for day $doy of year $year is $dow" );
$dow--;
$dow = 7 if $dow == 0;
}
}
}