libvariable-magic-perl/t/30-scalar.t

126 lines
3.3 KiB
Perl

#!perl -T
use strict;
use warnings;
use Config qw<%Config>;
use Test::More tests => (2 * 14 + 2) + 2 * (2 * 8 + 4) + 5 + 1;
use lib 't/lib';
use VPIT::TestHelpers;
use Variable::Magic qw<wizard cast dispell>;
use lib 't/lib';
use Variable::Magic::TestWatcher;
my $is_5130_release = ("$]" == 5.013 && !$Config{git_describe}) ? 1 : 0;
my $wiz = init_watcher
[ qw<get set len clear free copy dup local fetch store exists delete> ],
'scalar';
my $n = int rand 1000;
my $a = $n;
watch { cast $a, $wiz } { }, 'cast';
my $b;
# $b has to be set inside the block for the test to pass on 5.8.3 and lower
watch { $b = $a } { get => 1 }, 'assign to';
is $b, $n, 'scalar: assign to correctly';
$b = watch { "X${a}Y" } { get => 1 }, 'interpolate';
is $b, "X${n}Y", 'scalar: interpolate correctly';
$b = watch { \$a } { }, 'reference';
watch { $a = 123 } { set => 1 }, 'assign to';
watch { ++$a } { get => 1, set => 1 }, 'increment';
watch { --$a } { get => 1, set => 1 }, 'decrement';
watch { $a *= 1.5 } { get => 1, set => 1 }, 'multiply in place';
watch { $a /= 1.5 } { get => 1, set => 1 }, 'divide in place';
watch {
my $b = $n;
watch { cast $b, $wiz } { }, 'cast 2';
} { free => 1 }, 'scope end';
watch { undef $a } { set => 1 }, 'undef';
watch { dispell $a, $wiz } { }, 'dispell';
# Array element
my @a = (7, 8, 9);
watch { cast $a[1], $wiz } { }, 'array element: cast';
watch { $a[1] = 6 } { set => 1 }, 'array element: set';
$b = watch { $a[1] } { get => ($is_5130_release ? 2 : 1) },'array element: get';
is $b, 6, 'scalar: array element: get correctly';
watch { $a[0] = 5 } { }, 'array element: set other';
$b = watch { $a[2] } { }, 'array element: get other';
is $b, 9, 'scalar: array element: get other correctly';
$b = watch { exists $a[1] } { }, 'array element: exists';
is $b, 1, 'scalar: array element: exists correctly';
# $b has to be set inside the block for the test to pass on 5.8.3 and lower
watch { $b = delete $a[1] } { get => 1, free => ("$]" > 5.008_005 ? 1 : 0) },
'array element: delete';
is $b, 6, 'scalar: array element: delete correctly';
watch { $a[1] = 4 } { }, 'array element: set after delete';
# Hash element
my %h = (a => 7, b => 8);
watch { cast $h{b}, $wiz } { }, 'hash element: cast';
watch { $h{b} = 6 } { set => 1 }, 'hash element: set';
$b = watch { $h{b} } { get => ($is_5130_release ? 2 : 1) }, 'hash element: get';
is $b, 6, 'scalar: hash element: get correctly';
watch { $h{a} = 5 } { }, 'hash element: set other';
$b = watch { $h{a} } { }, 'hash element: get other';
is $b, 5, 'scalar: hash element: get other correctly';
$b = watch { exists $h{b} } { }, 'hash element: exists';
is $b, 1, 'scalar: hash element: exists correctly';
$b = watch { delete $h{b} } { get => 1, free => 1 }, 'hash element: delete';
is $b, 6, 'scalar: hash element: delete correctly';
watch { $h{b} = 4 } { }, 'hash element: set after delete';
SKIP: {
load_or_skip('Tie::Array', undef, undef, 5);
tie my @a, 'Tie::StdArray';
$a[0] = $$;
$a[1] = -$$;
eval {
cast @a, wizard copy => sub { cast $_[3], $wiz; () };
};
is $@, '', 'cast copy magic on tied array';
watch { delete $a[0] } [ qw<clear free> ],
'delete from tied array in void context';
$b = watch { delete $a[1] } [ qw<get clear free> ],
'delete from tied array in scalar context';
}