#!/usr/bin/perl -w
use strict;
use Test::More;
plan tests => 4;
use DateTime;
use DateTime::Duration;
use DateTime::Set;
#======================================================================
# complement + recurrence
#======================================================================
use constant INFINITY => 100 ** 100 ** 100 ;
use constant NEG_INFINITY => -1 * (100 ** 100 ** 100);
my $res;
my $t1 = new DateTime( year => '1810', month => '08', day => '22' );
my $t2 = new DateTime( year => '1810', month => '11', day => '24' );
my $s1 = DateTime::Set->from_datetimes( dates => [ $t1, $t2 ] );
my $month_callback = sub {
$_[0]->truncate( to => 'month' );
$_[0]->add( months => 1 );
return $_[0];
};
my $months = DateTime::Set->from_recurrence(
recurrence => $month_callback,
start => $t1,
);
$res = $months->min;
$res = $res->ymd if ref($res);
ok( $res eq '1810-09-01',
"min() - got $res" );
my $next_months = $months->complement( $months->min );
$res = $next_months->min;
$res = $res->ymd if ref($res);
ok( $res eq '1810-10-01',
"min() - got $res" );
# trying to duplicate an error that happens in Date::Set
my $iter1 = $months->iterator;
my $first = $iter1->next;
$next_months = $months->complement( $first );
my $iter2 = $next_months->iterator;
$res = $iter2->next;
$res = $res->ymd if ref($res);
ok( $res eq '1810-10-01',
"min() - got $res" );
$res = $iter2->next;
$res = $res->ymd if ref($res);
ok( $res eq '1810-11-01',
"min() - got $res" );
1;