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|
#!/usr/bin/perl -w
use strict;
use Test::More;
plan tests => 17;
use DateTime;
use DateTime::Duration;
use DateTime::Set;
use DateTime::Infinite;
my $res;
my $t0 = new DateTime( year => '1810', month => '05', day => '01' );
my $t1 = new DateTime( year => '1810', month => '08', day => '01' );
my $t2 = new DateTime( year => '1810', month => '11', day => '01' );
{
# diag( "monthly from 1810-08-01 until infinity" );
my $_next_month = sub {
# warn "next of ". $_[0]->datetime;
$_[0]->truncate( to => 'month' );
$_[0]->add( months => 1 );
return $_[0] if $_[0] >= $t1;
return $t1->clone;
};
my $_previous_month = sub {
# warn "previous of ". $_[0]->datetime;
my $dt = $_[0]->clone;
$_[0]->truncate( to => 'month' );
$_[0]->subtract( months => 1 ) if $_[0] == $dt;
return $_[0] if $_[0] >= $t1;
return DateTime::Infinite::Past->new;
};
my $months = DateTime::Set->from_recurrence(
next => $_next_month,
previous => $_previous_month,
# detect_bounded => 1,
);
# contains datetime, semi-bounded set
is( $months->contains( $t0 ), 0, "does not contain datetime" );
is( $months->contains( $t0, $t2 ), 0, "does not contain datetime list" );
is( $months->contains( $t2 ), 1, "contains datetime" );
is( $months->intersects( $t0 ), 0, "does not intersect datetime" );
is( $months->intersects( $t0, $t2 ), 1, "intersects datetime list" );
is( $months->intersects( $t2 ), 1, "intersects datetime" );
$res = $months->min;
$res = $res->ymd if ref($res);
is( $res, '1810-08-01',
"min()" );
$res = $months->max;
is( ref($res), 'DateTime::Infinite::Future',
"max()" );
}
{
# diag( "monthly from infinity until 1810-08-01" );
my $_next_month = sub {
# warn "next of ". $_[0]->datetime;
$_[0]->truncate( to => 'month' );
$_[0]->add( months => 1 );
# warn " got ".$_[0]->datetime."\n" if $_[0] <= $t1;
return $_[0] if $_[0] <= $t1;
# warn " got Future\n";
return DateTime::Infinite::Future->new;
};
my $_previous_month = sub {
# warn "previous of ". $_[0]->datetime;
# warn " got ".$t1->datetime."\n" if $_[0] > $t1;
return $t1->clone if $_[0] > $t1;
my $dt = $_[0]->clone;
$_[0]->truncate( to => 'month' );
$_[0]->subtract( months => 1 ) if $_[0] == $dt;
# warn " got ".$_[0]->datetime."\n";
return $_[0];
};
my $months = DateTime::Set->from_recurrence(
next => $_next_month,
previous => $_previous_month,
# detect_bounded => 1,
);
$res = $months->min;
# $res = $res->ymd if ref($res);
is( ref($res), 'DateTime::Infinite::Past',
"min()" );
$res = $months->max;
$res = $res->ymd if ref($res);
is( $res, '1810-08-01',
"max()" );
is( $months->count, undef, "count" );
}
{
# diag( "monthly from 1810-08-01 until 1810-11-01" );
my $_next_month = sub {
# warn "next of ". $_[0]->datetime;
$_[0]->truncate( to => 'month' );
$_[0]->add( months => 1 );
return $t1->clone if $_[0] < $t1;
return $_[0] if $_[0] <= $t2;
return DateTime::Infinite::Future->new;
};
my $_previous_month = sub {
# warn "previous of ". $_[0]->datetime;
my $dt = $_[0]->clone;
$_[0]->truncate( to => 'month' );
$_[0]->subtract( months => 1 ) if $_[0] == $dt;
return DateTime::Infinite::Past->new if $_[0] < $t1;
return $_[0] if $_[0] <= $t2;
return $t2->clone;
};
my $months = DateTime::Set->from_recurrence(
next => $_next_month,
previous => $_previous_month,
# detect_bounded => 1,
);
$res = $months->min;
$res = $res->ymd if ref($res);
is( $res, '1810-08-01',
"min()" );
$res = $months->max;
$res = $res->ymd if ref($res);
is( $res, '1810-11-01',
"max()" );
is( $months->count, 4, "count" );
}
{
# diag( "lists and recurrences are interchangeable" );
my $set = DateTime::Set->from_datetimes(
dates => [ $t0, $t1, $t2 ]
);
my $months = DateTime::Set->from_recurrence(
next => sub{
my $dt = $set->next( $_[0] );
defined $dt ? $dt : DateTime::Infinite::Future->new;
},
previous => sub{
my $dt = $set->previous( $_[0] );
defined $dt ? $dt : DateTime::Infinite::Past->new;
},
# detect_bounded => 1,
);
$res = $months->min;
$res = $res->ymd if ref($res);
is( $res , '1810-05-01',
"min()" );
$res = $months->max;
$res = $res->ymd if ref($res);
is( $res, '1810-11-01',
"max()" );
is( $months->count, 3, "count" );
}
1;
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