156 lines
4.1 KiB
Perl
156 lines
4.1 KiB
Perl
#!perl -T
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use strict;
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use warnings;
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use Test::More tests => 33 + 41;
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use Variable::Magic qw<wizard cast dispell VMG_UVAR>;
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my $n = 3;
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my @w;
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my @c = (0) x $n;
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sub multi {
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my ($cb, $tests) = @_;
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for (my $i = 0; $i < $n; ++$i) {
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my $res = eval { $cb->($i) };
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$tests->($i, $res, $@);
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}
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}
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eval { $w[0] = wizard get => sub { ++$c[0] }, set => sub { --$c[0] } };
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is($@, '', 'wizard 0 creation doesn\'t croak');
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eval { $w[1] = wizard get => sub { ++$c[1] }, set => sub { --$c[1] } };
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is($@, '', 'wizard 1 creation doesn\'t croak');
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eval { $w[2] = wizard get => sub { ++$c[2] }, set => sub { --$c[2] } };
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is($@, '', 'wizard 2 creation doesn\'t croak');
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multi sub {
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my ($i) = @_;
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$w[$i]
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}, sub {
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my ($i, $res, $err) = @_;
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ok(defined $res, "wizard $i is defined");
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is(ref $w[$i], 'SCALAR', "wizard $i is a scalar ref");
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};
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my $a = 0;
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multi sub {
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my ($i) = @_;
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cast $a, $w[$i];
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}, sub {
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my ($i, $res, $err) = @_;
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is($err, '', "cast magic $i doesn't croak");
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ok($res, "cast magic $i is valid");
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};
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my $b = $a;
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for (0 .. $n - 1) { is($c[$_], 1, "get magic $_"); }
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$a = 1;
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for (0 .. $n - 1) { is($c[$_], 0, "set magic $_"); }
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my $res = eval { dispell $a, $w[1] };
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is($@, '', 'dispell magic 1 doesn\'t croak');
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ok($res, 'dispell magic 1 is valid');
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$b = $a;
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for (0, 2) { is($c[$_], 1, "get magic $_ after dispelled 1"); }
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$a = 2;
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for (0, 2) { is($c[$_], 0, "set magic $_ after dispelled 1"); }
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$res = eval { dispell $a, $w[0] };
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is($@, '', 'dispell magic 0 doesn\'t croak');
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ok($res, 'dispell magic 0 is valid');
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$b = $a;
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is($c[2], 1, 'get magic 2 after dispelled 1 & 0');
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$a = 3;
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is($c[2], 0, 'set magic 2 after dispelled 1 & 0');
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$res = eval { dispell $a, $w[2] };
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is($@, '', 'dispell magic 2 doesn\'t croak');
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ok($res, 'dispell magic 2 is valid');
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SKIP: {
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skip 'No nice uvar magic for this perl' => 41 unless VMG_UVAR;
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$n = 3;
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@c = (0) x $n;
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eval { $w[0] = wizard fetch => sub { ++$c[0] }, store => sub { --$c[0] } };
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is($@, '', 'wizard with uvar 0 doesn\'t croak');
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eval { $w[1] = wizard fetch => sub { ++$c[1] }, store => sub { --$c[1] } };
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is($@, '', 'wizard with uvar 1 doesn\'t croak');
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eval { $w[2] = wizard fetch => sub { ++$c[2] }, store => sub { --$c[2] } };
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is($@, '', 'wizard with uvar 2 doesn\'t croak');
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multi sub {
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my ($i) = @_;
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$w[$i]
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}, sub {
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my ($i, $res, $err) = @_;
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ok(defined $res, "wizard with uvar $i is defined");
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is(ref $w[$i], 'SCALAR', "wizard with uvar $i is a scalar ref");
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};
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my %h = (a => 1, b => 2);
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multi sub {
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my ($i) = @_;
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cast %h, $w[$i];
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}, sub {
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my ($i, $res, $err) = @_;
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is($err, '', "cast uvar magic $i doesn't croak");
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ok($res, "cast uvar magic $i is valid");
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};
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my $s = $h{a};
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is($s, 1, 'fetch magic doesn\'t clobber');
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for (0 .. $n - 1) { is($c[$_], 1, "fetch magic $_"); }
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$h{a} = 3;
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for (0 .. $n - 1) { is($c[$_], 0, "store magic $_"); }
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is($h{a}, 3, 'store magic doesn\'t clobber');
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# $c[$_] == 1 for 0 .. 2
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my $res = eval { dispell %h, $w[1] };
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is($@, '', 'dispell uvar magic 1 doesn\'t croak');
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ok($res, 'dispell uvar magic 1 is valid');
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$s = $h{b};
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is($s, 2, 'fetch magic after dispelled 1 doesn\'t clobber');
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for (0, 2) { is($c[$_], 2, "fetch magic $_ after dispelled 1"); }
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$h{b} = 4;
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for (0, 2) { is($c[$_], 1, "store magic $_ after dispelled 1"); }
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is($h{b}, 4, 'store magic after dispelled 1 doesn\'t clobber');
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# $c[$_] == 2 for 0, 2
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$res = eval { dispell %h, $w[2] };
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is($@, '', 'dispell uvar magic 2 doesn\'t croak');
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ok($res, 'dispell uvar magic 2 is valid');
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$s = $h{b};
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is($s, 4, 'fetch magic after dispelled 1,2 doesn\'t clobber');
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for (0) { is($c[$_], 3, "fetch magic $_ after dispelled 1,2"); }
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$h{b} = 6;
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for (0) { is($c[$_], 2, "store magic $_ after dispelled 1,2"); }
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is($h{b}, 6, 'store magic after dispelled 1,2 doesn\'t clobber');
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# $c[$_] == 3 for 0
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$res = eval { dispell %h, $w[0] };
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is($@, '', 'dispell uvar magic 0 doesn\'t croak');
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ok($res, 'dispell uvar magic 0 is valid');
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$s = $h{b};
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is($s, 6, 'fetch magic after dispelled 1,2,0 doesn\'t clobber');
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$h{b} = 8;
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is($h{b}, 8, 'store magic after dispelled 1,2,0 doesn\'t clobber');
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}
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