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|
#!perl
use strict;
use warnings;
use Test::More;
my $tests;
BEGIN { $tests = 18 }
plan tests => $tests;
use Variable::Magic qw<wizard cast dispell getdata MGf_LOCAL VMG_UVAR>;
use lib 't/lib';
use Variable::Magic::TestGlobalDestruction;
my $c = 0;
{
my $wiz = eval {
wizard data => sub { $_[0] },
get => sub { ++$c },
free => sub { --$c }
};
is($@, '', 'wizard creation error doesn\'t croak');
ok(defined $wiz, 'wizard is defined');
is(ref $wiz, 'SCALAR', 'wizard is a scalar ref');
my $res = eval { cast $wiz, $wiz };
is($@, '', 'cast on self doesn\'t croak');
ok($res, 'cast on self is valid');
my $w = $wiz;
is($c, 1, 'magic works correctly on self');
$res = eval { dispell $wiz, $wiz };
is($@, '', 'dispell on self doesn\'t croak');
ok($res, 'dispell on self is valid');
$w = $wiz;
is($c, 1, 'magic is no longer invoked on self when dispelled');
$res = eval { cast $wiz, $wiz, $wiz };
is($@, '', 're-cast on self doesn\'t croak');
ok($res, 're-cast on self is valid');
$w = getdata $wiz, $wiz;
is($c, 1, 'getdata on magical self doesn\'t trigger callbacks');
$res = eval { dispell $wiz, $wiz };
is($@, '', 're-dispell on self doesn\'t croak');
ok($res, 're-dispell on self is valid');
$res = eval { cast $wiz, $wiz };
is($@, '', 're-re-cast on self doesn\'t croak');
ok($res, 're-re-cast on self is valid');
}
{
my %testcases;
BEGIN {
my %magics = do {
my @magics = qw<get set len clear free copy>;
push @magics, 'local' if MGf_LOCAL;
push @magics, qw<fetch store exists delete> if VMG_UVAR;
map { $_ => 1 } @magics;
};
%testcases = (
SCALAR => {
id => 1,
ctor => sub { my $val = 123; \$val },
tests => [
get => [ sub { my $val = ${$_[0]} } => 123 ],
set => [ sub { ${$_[0]} = 456; $_[0] } => \456 ],
free => [ ],
],
},
ARRAY => {
id => 2,
ctor => sub { [ 0 .. 2 ] },
tests => [
len => [ sub { my $len = @{$_[0]} } => 3 ],
clear => [ sub { @{$_[0]} = (); $_[0] } => [ ] ],
free => [ ],
],
},
HASH => {
id => 3,
ctor => sub { +{ foo => 'bar' } },
tests => [
clear => [ sub { %{$_[0]} = (); $_[0] } => +{ } ],
free => [ ],
fetch => [ sub { my $val = $_[0]->{foo} } => 'bar' ],
store => [ sub { $_[0]->{foo} = 'baz'; $_[0] } => { foo => 'baz' } ],
exists => [ sub { my $res = exists $_[0]->{foo} } => 1 ],
delete => [ sub { my $val = delete $_[0]->{foo} } => 'bar' ],
],
},
);
my $count;
for my $testcases (map $_->{tests}, values %testcases) {
my $i = 0;
while ($i < $#$testcases) {
if ($magics{$testcases->[$i]}) {
$i += 2;
++$count;
} else {
splice @$testcases, $i, 2;
}
}
}
$tests += $count * 2 * 2 * 3;
}
my @types = sort { $testcases{$a}->{id} <=> $testcases{$b}->{id} }
keys %testcases;
my $other_wiz = wizard data => sub { 'abc' };
for my $type (@types) {
my $ctor = $testcases{$type}->{ctor};
my @testcases = @{$testcases{$type}->{tests}};
while (@testcases >= 2) {
my ($magic, $test) = splice @testcases, 0, 2;
for my $dispell (0, 1) {
for my $die (0, 1) {
my $desc = $dispell ? 'dispell' : 'cast';
$desc .= " a $type from a $magic callback";
$desc .= ' and dieing' if $die;
my $wiz;
my $code = $dispell
? sub { &dispell($_[0], $wiz); die 'oops' if $die; return }
: sub { &cast($_[0], $other_wiz); die 'oops' if $die; return };
$wiz = wizard(
data => sub { 'xyz' },
$magic => $code,
);
my ($var, $res, $err);
if ($magic eq 'free') {
eval {
my $v = $ctor->();
&cast($v, $wiz);
};
$err = $@;
} else {
$var = $ctor->();
&cast($var, $wiz);
$res = eval {
$test->[0]->($var);
};
$err = $@;
}
if ($die) {
like $err, qr/^oops at/, "$desc: correct error";
is $res, undef, "$desc: returned undef";
} else {
is $err, '', "$desc: no error";
is_deeply $res, $test->[1], "$desc: returned value";
}
if (not defined $var) {
pass "$desc: meaningless";
} elsif ($dispell) {
my $data = &getdata($var, $wiz);
is $data, undef, "$desc: correctly dispelled";
} else {
my $data = &getdata($var, $other_wiz);
is $data, 'abc', "$desc: correctly cast";
}
}
}
}
}
}
SKIP: {
skip "Called twice starting from perl 5.24" => 1 if "$]" >= 5.024;
my $recasted = 0;
my $wiz2 = wizard;
my $wiz1 = wizard free => sub { ++$recasted; &cast($_[0], $wiz2); die 'xxx' };
local $@;
my $res = eval {
my $v = do { my $val = 123; \$val };
&cast($v, $wiz1);
};
is $recasted, 1, 'recasting free callback called only once';
}
eval q[
use lib 't/lib';
BEGIN { require Variable::Magic::TestDestroyRequired; }
];
is $@, '', 'wizard destruction at the end of BEGIN-time require doesn\'t panic';
|
