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1 | use strict; |
2 | use warnings; |
3 | |
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4 | use Scalar::Util qw( refaddr ); |
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5 | use Test::More; |
6 | |
7 | BEGIN { |
8 | unless ( eval 'use Test::Warn; 1' ) { |
9 | plan skip_all => 'These tests require Test::Warn'; |
10 | } |
11 | else { |
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12 | plan tests => 18; |
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13 | } |
14 | } |
15 | |
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16 | { |
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17 | package MooseX::Singleton::Test; |
18 | use MooseX::Singleton; |
19 | |
20 | has bag => ( |
21 | is => 'rw', |
22 | isa => 'HashRef[Int]', |
23 | default => sub { { default => 42 } }, |
24 | ); |
25 | |
26 | sub distinct_keys { |
27 | my $self = shift; |
28 | scalar keys %{ $self->bag }; |
29 | } |
30 | |
31 | sub clear { |
32 | my $self = shift; |
33 | $self->bag({}); |
34 | } |
35 | |
36 | sub add { |
37 | my $self = shift; |
38 | my $key = shift; |
39 | my $value = @_ ? shift : 1; |
40 | |
41 | $self->bag->{$key} += $value; |
42 | } |
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43 | |
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44 | ::warning_is sub { __PACKAGE__->meta->make_immutable }, '', |
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45 | 'no warnings when calling make_immutable'; |
46 | } |
47 | |
48 | my $mst = MooseX::Singleton::Test->instance; |
49 | isa_ok($mst, 'MooseX::Singleton::Test', 'Singleton->instance returns a real instance'); |
50 | |
51 | is($mst->distinct_keys, 1, "default keys"); |
52 | |
53 | $mst->add(foo => 10); |
54 | is($mst->distinct_keys, 2, "added key"); |
55 | |
56 | $mst->add(bar => 5); |
57 | is($mst->distinct_keys, 3, "added another key"); |
58 | |
59 | my $mst2 = MooseX::Singleton::Test->instance; |
60 | is($mst, $mst2, 'instances are the same object'); |
61 | isa_ok($mst2, 'MooseX::Singleton::Test', 'Singleton->instance returns a real instance'); |
62 | |
63 | is($mst2->distinct_keys, 3, "keys from before"); |
64 | |
65 | $mst->add(baz => 2); |
66 | |
67 | is($mst->distinct_keys, 4, "attributes are shared even after ->instance"); |
68 | is($mst2->distinct_keys, 4, "attributes are shared even after ->instance"); |
69 | |
70 | is(MooseX::Singleton::Test->distinct_keys, 4, "Package->reader works"); |
71 | |
72 | MooseX::Singleton::Test->add(quux => 9000); |
73 | |
74 | is($mst->distinct_keys, 5, "Package->add works"); |
75 | is($mst2->distinct_keys, 5, "Package->add works"); |
76 | is(MooseX::Singleton::Test->distinct_keys, 5, "Package->add works"); |
77 | |
78 | MooseX::Singleton::Test->clear; |
79 | |
80 | is($mst->distinct_keys, 0, "Package->clear works"); |
81 | is($mst2->distinct_keys, 0, "Package->clear works"); |
82 | is(MooseX::Singleton::Test->distinct_keys, 0, "Package->clear works"); |
83 | |
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84 | { |
85 | my $addr; |
86 | |
87 | { |
88 | $addr = refaddr( MooseX::Singleton::Test->instance ); |
89 | } |
90 | |
91 | is( $addr, refaddr( MooseX::Singleton::Test->instance ), |
92 | 'singleton is not randomly destroyed' ); |
93 | } |
94 | |