1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
use strict;
use warnings;
use Test::More;
BEGIN {
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;
}
}
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" );
MooseX::Singleton::Test->_clear_instance;
$mst = $mst2 = undef;
is( MooseX::Singleton::Test->instance->distinct_keys, 1, "back to the default" );
done_testing;
|
