1#!perl -T
2
3use strict;
4use warnings;
5
6use Config qw/%Config/;
7
8use Test::More tests => (2 * 14 + 2) + 2 * (2 * 8 + 4) + 3 + 1;
9
10use Variable::Magic qw/wizard cast dispell MGf_COPY/;
11
12use lib 't/lib';
13use Variable::Magic::TestWatcher;
14
15my $is_5130_release = ($] == 5.013 && !$Config{git_describe}) ? 1 : 0;
16
17my $wiz = init_watcher
18        [ qw/get set len clear free copy dup local fetch store exists delete/ ],
19        'scalar';
20
21my $n = int rand 1000;
22my $a = $n;
23
24watch { cast $a, $wiz } { }, 'cast';
25
26my $b;
27# $b has to be set inside the block for the test to pass on 5.8.3 and lower
28watch { $b = $a } { get => 1 }, 'assign to';
29is $b, $n, 'scalar: assign to correctly';
30
31$b = watch { "X${a}Y" } { get => 1 }, 'interpolate';
32is $b, "X${n}Y", 'scalar: interpolate correctly';
33
34$b = watch { \$a } { }, 'reference';
35
36watch { $a = 123; () } { set => 1 }, 'assign to';
37
38watch { ++$a; () } { get => 1, set => 1 }, 'increment';
39
40watch { --$a; () } { get => 1, set => 1 }, 'decrement';
41
42watch { $a *= 1.5; () } { get => 1, set => 1 }, 'multiply in place';
43
44watch { $a /= 1.5; () } { get => 1, set => 1 }, 'divide in place';
45
46watch {
47 my $b = $n;
48 watch { cast $b, $wiz } { }, 'cast 2';
49} { free => 1 }, 'scope end';
50
51watch { undef $a } { set => 1 }, 'undef';
52
53watch { dispell $a, $wiz } { }, 'dispell';
54
55# Array element
56
57my @a = (7, 8, 9);
58
59watch { cast $a[1], $wiz } { }, 'array element: cast';
60
61watch { $a[1] = 6; () } { set => 1 }, 'array element: set';
62
63$b = watch { $a[1] } { get => ($is_5130_release ? 2 : 1) },'array element: get';
64is $b, 6, 'scalar: array element: get correctly';
65
66watch { $a[0] = 5 } { }, 'array element: set other';
67
68$b = watch { $a[2] } { }, 'array element: get other';
69is $b, 9, 'scalar: array element: get other correctly';
70
71$b = watch { exists $a[1] } { }, 'array element: exists';
72is $b, 1, 'scalar: array element: exists correctly';
73
74# $b has to be set inside the block for the test to pass on 5.8.3 and lower
75watch { $b = delete $a[1] } { get => 1, free => ($] > 5.008005 ? 1 : 0) }, 'array element: delete';
76is $b, 6, 'scalar: array element: delete correctly';
77
78watch { $a[1] = 4 } { }, 'array element: set after delete';
79
80# Hash element
81
82my %h = (a => 7, b => 8);
83
84watch { cast $h{b}, $wiz } { }, 'hash element: cast';
85
86watch { $h{b} = 6; () } { set => 1 }, 'hash element: set';
87
88$b = watch { $h{b} } { get => ($is_5130_release ? 2 : 1) }, 'hash element: get';
89is $b, 6, 'scalar: hash element: get correctly';
90
91watch { $h{a} = 5 } { }, 'hash element: set other';
92
93$b = watch { $h{a} } { }, 'hash element: get other';
94is $b, 5, 'scalar: hash element: get other correctly';
95
96$b = watch { exists $h{b} } { }, 'hash element: exists';
97is $b, 1, 'scalar: hash element: exists correctly';
98
99$b = watch { delete $h{b} } { get => 1, free => 1 }, 'hash element: delete';
100is $b, 6, 'scalar: hash element: delete correctly';
101
102watch { $h{b} = 4 } { }, 'hash element: set after delete';
103
104SKIP: {
105 my $SKIP;
106
107 unless (MGf_COPY) {
108  $SKIP = 'No copy magic for this perl';
109 } else {
110  eval "use Tie::Array";
111  $SKIP = 'Tie::Array required to test clear magic on tied array values' if $@;
112 }
113
114 skip $SKIP => 3 if $SKIP;
115 diag "Using Tie::Array $Tie::Array::VERSION" if defined $Tie::Array::VERSION;
116
117 tie my @a, 'Tie::StdArray';
118 $a[0] = $$;
119
120 eval {
121  cast @a, wizard copy => sub { cast $_[3], $wiz; () };
122 };
123 is $@, '', 'cast copy magic on tied array';
124
125 watch { delete $a[0] } [ qw/get clear free/ ], 'delete from tied array';
126}
127