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|
use strict;
use warnings;
use Test::Fatal;
use Test::More;
use Test::Warnings 0.005 ':all';
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
);
my $before_string = '2050-01-15T20:10:09';
my $same_string = '2050-01-15T20:10:10';
my $after_string = '2050-01-15T20:10:11';
is( "$dt", $same_string, 'stringification overloading' );
ok( $dt eq $same_string, 'eq overloading true' );
ok( !( $dt eq $after_string ), 'eq overloading false' );
ok( $dt ne $after_string, 'ne overloading true' );
ok( !( $dt ne $same_string ), 'ne overloading false' );
is( $dt cmp $same_string, 0, 'cmp overloading' );
is( $dt cmp $after_string, -1, ' less than' );
ok( $dt lt $after_string, 'lt overloading' );
ok( !( $dt lt $same_string ), ' not' );
{
package Other::Date;
use overload
q[""] => sub { return ${ $_[0] }; },
fallback => 1;
sub new {
my ( $class, $date ) = @_;
return bless \$date, $class;
}
}
my $same_od = Other::Date->new($same_string);
my $after_od = Other::Date->new($after_string);
my $before_od = Other::Date->new($before_string);
ok( $dt eq $same_od, 'DateTime eq non-DateTime overloaded object true' );
ok( !( $dt eq $after_od ), ' eq false' );
ok( $dt ne $after_od, ' ne true' );
ok( !( $dt ne $same_od ), ' ne false' );
is( $dt cmp $same_od, 0, 'cmp overloading' );
is( $dt cmp $after_od, -1, ' lt overloading' );
ok( $dt lt $after_od, 'lt overloading' );
ok( !( $dt lt $same_od ), ' not' );
is_deeply(
[
map { $_ . ' - ' . ( ref $_ || 'no ref' ) }
sort { $a cmp $b or ref $a cmp ref $b } $same_od, $after_od,
$before_od, $dt, $same_string, $after_string, $before_string
],
[
map { $_ . ' - ' . ( ref $_ || 'no ref' ) } $before_string,
$before_od, $same_string, $dt, $same_od, $after_string, $after_od
],
'eq sort'
);
like(
exception { my $x = $dt + 1 },
qr/Cannot add 1 to a DateTime object/,
'Cannot add plain scalar to a DateTime object'
);
like(
exception { my $x = $dt + bless {}, 'FooBar' },
qr/Cannot add FooBar=HASH\([^\)]+\) to a DateTime object/,
'Cannot add plain FooBar object to a DateTime object'
);
like(
exception { my $x = $dt - 1 },
qr/Cannot subtract 1 from a DateTime object/,
'Cannot subtract plain scalar from a DateTime object'
);
like(
exception { my $x = $dt - bless {}, 'FooBar' },
qr/Cannot subtract FooBar=HASH\([^\)]+\) from a DateTime object/,
'Cannot subtract plain FooBar object from a DateTime object'
);
like(
exception { my $x = $dt > 1 },
qr/A DateTime object can only be compared to another DateTime object/,
'Cannot compare a DateTime object to a scalar'
);
like(
exception { my $x = $dt > bless {}, 'FooBar' },
qr/A DateTime object can only be compared to another DateTime object/,
'Cannot compare a DateTime object to a FooBar object'
);
like(
warning { my $x = undef; $dt > $x; },
qr/uninitialized value in numeric gt .+ at .*x?t.(author.pp.)?29overload\.t/,
'Comparing undef to a DateTime object generates a Perl warning at the right spot ($dt > undef)'
);
like(
warning { my $x = undef; $x > $dt; },
qr/uninitialized value in numeric gt .+ at .*x?t.(author.pp.)?29overload\.t/,
'Comparing undef to a DateTime object generates a Perl warning at the right spot (undef > $dt)'
);
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)'
);
}
done_testing();
|
