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|
#!perl -T
use strict;
use warnings;
use Test::More tests => 26;
use Variable::Magic qw<wizard cast>;
my $wiz = eval { wizard get => sub { undef } };
is($@, '', 'wizard creation doesn\'t croak');
ok(defined $wiz, 'wizard is defined');
is(ref $wiz, 'SCALAR', 'wizard is a scalar ref');
my $n = int rand 1000;
my $a = $n;
my $res = eval { cast $a, $wiz };
is($@, '', 'cast doesn\'t croak');
ok($res, 'cast is valid');
my $x;
eval {
local $SIG{__WARN__} = sub { die };
$x = $a
};
is($@, '', 'callback returning undef doesn\'t warn/croak');
is($x, $n, 'callback returning undef fails');
{
my $c = 0;
sub X::wat { ++$c }
my $wiz = eval { wizard get => \'X::wat' };
is($@, '', 'wizard with a qualified string callback doesn\'t croak');
my $b = $n;
my $res = eval { cast $b, $wiz };
is($@, '', 'cast a wizard with a qualified string callback doesn\'t croak');
my $x;
eval {
local $SIG{__WARN__} = sub { die };
$x = $b;
};
is($@, '', 'qualified string callback doesn\'t warn/croak');
is($c, 1, 'qualified string callback is called');
is($x, $n, 'qualified string callback returns the right thing');
}
{
my $c = 0;
sub wut { fail 'main::wut was called' }
sub Y::wut { ++$c }
my $wiz = eval { wizard get => \'wut' };
is($@, '', 'wizard with a short string callback doesn\'t croak');
my $b = $n;
my $res = eval { cast $b, $wiz };
is($@, '', 'cast a wizard with a short string callback doesn\'t croak');
my $x;
eval {
local $SIG{__WARN__} = sub { die };
package Y;
$x = $b;
};
is($@, '', 'short string callback doesn\'t warn/croak');
is($c, 1, 'short string callback is called');
is($x, $n, 'short string callback returns the right thing');
}
{
my $wiz = eval { wizard get => \undef };
is($@, '', 'wizard with a ref-to-undef callback doesn\'t croak');
my $b = $n;
my $res = eval { cast $b, $wiz };
is($@, '', 'cast a wizard with a ref-to-undef callback doesn\'t croak');
my $x;
eval {
local $SIG{__WARN__} = sub { die };
$x = $b;
};
is($@, '', 'ref-to-undef callback doesn\'t warn/croak');
is($x, $n, 'ref-to-undef callback returns the right thing');
}
my @callers;
$wiz = wizard get => sub {
my @c;
my $i = 0;
while (@c = caller $i++) {
push @callers, [ @c[0, 1, 2] ];
}
};
my $b;
cast $b, $wiz;
my $u = $b;
is_deeply(\@callers, [
([ 'main', $0, __LINE__-2 ]) x 2,
], 'caller into callback returns the right thing');
@callers = ();
$u = $b;
is_deeply(\@callers, [
([ 'main', $0, __LINE__-2 ]) x 2,
], 'caller into callback returns the right thing (second time)');
{
@callers = ();
my $u = $b;
is_deeply(\@callers, [
([ 'main', $0, __LINE__-2 ]) x 2,
], 'caller into callback into block returns the right thing');
}
@callers = ();
eval { my $u = $b };
is($@, '', 'caller into callback doesn\'t croak');
is_deeply(\@callers, [
([ 'main', $0, __LINE__-3 ]) x 3,
], 'caller into callback into eval returns the right thing');
|
