use strict;
use Test::More tests => 12;
use DateTime;
{
my $dt = DateTime->new( year => 1900, month => 12, day => 1 );
is( "$dt", '1900-12-01T00:00:00', 'stringification overloading' );
}
{
my $dt = DateTime->new( year => 2050, month => 1, day => 15,
hour => 20, minute => 10, second => 10 );
is( "$dt", '2050-01-15T20:10:10', 'stringification overloading' );
eval { my $x = $dt + 1 };
like( $@, qr/Cannot add 1 to a DateTime object/,
'Cannot add plain scalar to a DateTime object' );
eval { my $x = $dt + bless {}, 'FooBar' };
like( $@, qr/Cannot add FooBar=HASH\([^\)]+\) to a DateTime object/,
'Cannot add plain FooBar object to a DateTime object' );
eval { my $x = $dt - 1 };
like( $@, qr/Cannot subtract 1 from a DateTime object/,
'Cannot subtract plain scalar from a DateTime object' );
eval { my $x = $dt - bless {}, 'FooBar' };
like( $@, qr/Cannot subtract FooBar=HASH\([^\)]+\) from a DateTime object/,
'Cannot subtract plain FooBar object from a DateTime object' );
eval { my $x = $dt > 1 };
like( $@, qr/A DateTime object can only be compared to another DateTime object/,
'Cannot compare a DateTime object to a scalar' );
eval { my $x = $dt > bless {}, 'FooBar' };
like( $@, qr/A DateTime object can only be compared to another DateTime object/,
'Cannot compare a DateTime object to a FooBar object' );
ok( ! ( $dt eq 'some string' ),
'DateTime object always compares false to a string' );
ok( $dt ne 'some string',
'DateTime object always compares false to a string' );
ok( $dt eq $dt->clone,
'DateTime object is equal to a clone of itself' );
ok( ! ( $dt ne $dt->clone ),
'DateTime object is equal to a clone of itself (! ne)' );
}