use strict;
use warnings;
use Scalar::Util qw( refaddr );
use Test::More;
use Test::Requires {
'Test::Warn' => 0.01, # skip all if not installed
};
{
package MooseX::Singleton::Test;
use MooseX::Singleton;
has bag => (
is => 'rw',
isa => 'HashRef[Int]',
default => sub { { default => 42 } },
);
sub distinct_keys {
my $self = shift;
scalar keys %{ $self->bag };
}
sub clear {
my $self = shift;
$self->bag( {} );
}
sub add {
my $self = shift;
my $key = shift;
my $value = @_ ? shift : 1;
$self->bag->{$key} += $value;
}
::warning_is sub { __PACKAGE__->meta->make_immutable }, '',
'no warnings when calling make_immutable';
}
my $mst = MooseX::Singleton::Test->instance;
isa_ok( $mst, 'MooseX::Singleton::Test',
'Singleton->instance returns a real instance' );
is( $mst->distinct_keys, 1, "default keys" );
$mst->add( foo => 10 );
is( $mst->distinct_keys, 2, "added key" );
$mst->add( bar => 5 );
is( $mst->distinct_keys, 3, "added another key" );
my $mst2 = MooseX::Singleton::Test->instance;
is( $mst, $mst2, 'instances are the same object' );
isa_ok( $mst2, 'MooseX::Singleton::Test',
'Singleton->instance returns a real instance' );
is( $mst2->distinct_keys, 3, "keys from before" );
$mst->add( baz => 2 );
is( $mst->distinct_keys, 4, "attributes are shared even after ->instance" );
is( $mst2->distinct_keys, 4, "attributes are shared even after ->instance" );
is( MooseX::Singleton::Test->distinct_keys, 4, "Package->reader works" );
MooseX::Singleton::Test->add( quux => 9000 );
is( $mst->distinct_keys, 5, "Package->add works" );
is( $mst2->distinct_keys, 5, "Package->add works" );
is( MooseX::Singleton::Test->distinct_keys, 5, "Package->add works" );
MooseX::Singleton::Test->clear;
is( $mst->distinct_keys, 0, "Package->clear works" );
is( $mst2->distinct_keys, 0, "Package->clear works" );
is( MooseX::Singleton::Test->distinct_keys, 0, "Package->clear works" );
{
my $addr;
{
$addr = refaddr( MooseX::Singleton::Test->instance );
}
is(
$addr, refaddr( MooseX::Singleton::Test->instance ),
'singleton is not randomly destroyed'
);
}
done_testing;