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fde8e43f |
1 | #!/usr/bin/perl |
2 | # This is automatically generated by author/import-moose-test.pl. |
3 | # DO NOT EDIT THIS FILE. ANY CHANGES WILL BE LOST!!! |
4 | use t::lib::MooseCompat; |
5 | |
6 | use strict; |
7 | use warnings; |
8 | |
9 | use Test::More; |
10 | |
11 | { |
12 | package Subject; |
13 | |
14 | use Mouse::Role; |
15 | |
16 | has observers => ( |
17 | traits => ['Array'], |
18 | is => 'ro', |
19 | isa => 'ArrayRef[Observer]', |
20 | auto_deref => 1, |
21 | default => sub { [] }, |
22 | handles => { |
23 | 'add_observer' => 'push', |
24 | 'count_observers' => 'count', |
25 | }, |
26 | ); |
27 | |
28 | sub notify { |
29 | my ($self) = @_; |
30 | foreach my $observer ( $self->observers() ) { |
31 | $observer->update($self); |
32 | } |
33 | } |
34 | } |
35 | |
36 | { |
37 | package Observer; |
38 | |
39 | use Mouse::Role; |
40 | |
41 | requires 'update'; |
42 | } |
43 | |
44 | { |
45 | package Counter; |
46 | |
47 | use Mouse; |
48 | |
49 | with 'Subject'; |
50 | |
51 | has count => ( |
52 | traits => ['Counter'], |
53 | is => 'ro', |
54 | isa => 'Int', |
55 | default => 0, |
56 | handles => { |
57 | inc_counter => 'inc', |
58 | dec_counter => 'dec', |
59 | }, |
60 | ); |
61 | |
62 | after qw(inc_counter dec_counter) => sub { |
63 | my ($self) = @_; |
64 | $self->notify(); |
65 | }; |
66 | } |
67 | |
68 | { |
69 | |
70 | package Display; |
71 | |
72 | use Test::More; |
73 | |
74 | use Mouse; |
75 | |
76 | with 'Observer'; |
77 | |
78 | sub update { |
79 | my ( $self, $subject ) = @_; |
80 | like $subject->count, qr{^-?\d+$}, |
81 | 'Observed number ' . $subject->count; |
82 | } |
83 | } |
84 | |
85 | package main; |
86 | |
87 | my $count = Counter->new(); |
88 | |
89 | ok( $count->can('add_observer'), 'add_observer method added' ); |
90 | |
91 | ok( $count->can('count_observers'), 'count_observers method added' ); |
92 | |
93 | ok( $count->can('inc_counter'), 'inc_counter method added' ); |
94 | |
95 | ok( $count->can('dec_counter'), 'dec_counter method added' ); |
96 | |
97 | $count->add_observer( Display->new() ); |
98 | |
99 | is( $count->count_observers, 1, 'Only one observer' ); |
100 | |
101 | is( $count->count, 0, 'Default to zero' ); |
102 | |
103 | $count->inc_counter; |
104 | |
105 | is( $count->count, 1, 'Increment to one ' ); |
106 | |
107 | $count->inc_counter for ( 1 .. 6 ); |
108 | |
109 | is( $count->count, 7, 'Increment up to seven' ); |
110 | |
111 | $count->dec_counter; |
112 | |
113 | is( $count->count, 6, 'Decrement to 6' ); |
114 | |
115 | $count->dec_counter for ( 1 .. 5 ); |
116 | |
117 | is( $count->count, 1, 'Decrement to 1' ); |
118 | |
119 | $count->dec_counter for ( 1 .. 2 ); |
120 | |
121 | is( $count->count, -1, 'Negative numbers' ); |
122 | |
123 | $count->inc_counter; |
124 | |
125 | is( $count->count, 0, 'Back to zero' ); |
126 | |
127 | done_testing; |