--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More tests => 5;
+
+BEGIN {
+ use_ok('MooseX::Storage');
+ use_ok('MooseX::Storage::Util');
+}
+
+my $packed = {
+ __CLASS__ => 'Foo',
+ number => 10,
+ string => 'foo',
+ float => 10.5,
+ array => [ 1 .. 10 ],
+ hash => { map { $_ => undef } ( 1 .. 10 ) },
+ object => {
+ __CLASS__ => 'Foo',
+ number => 2
+ },
+};
+
+my $json = '{"array":[1,2,3,4,5,6,7,8,9,10],"hash":{"6":null,"3":null,"7":null,"9":null,"2":null,"8":null,"1":null,"4":null,"10":null,"5":null},"float":10.5,"object":{"number":2,"__CLASS__":"Foo"},"number":10,"__CLASS__":"Foo","string":"foo"}';
+my $yaml = q{---
+__CLASS__: Foo
+array:
+ - 1
+ - 2
+ - 3
+ - 4
+ - 5
+ - 6
+ - 7
+ - 8
+ - 9
+ - 10
+float: 10.5
+hash:
+ 1: ~
+ 10: ~
+ 2: ~
+ 3: ~
+ 4: ~
+ 5: ~
+ 6: ~
+ 7: ~
+ 8: ~
+ 9: ~
+number: 10
+object:
+ __CLASS__: Foo
+ number: 2
+string: foo
+};
+
+is(
+'Foo',
+MooseX::Storage::Util->peek($packed),
+'... got the right class name from the packed item');
+
+is(
+'Foo',
+MooseX::Storage::Util->peek($json => ('format' => 'JSON')),
+'... got the right class name from the json item');
+
+is(
+'Foo',
+MooseX::Storage::Util->peek($yaml => ('format' => 'YAML')),
+'... got the right class name from the yaml item');
+
+