Importing Variable-Magic-0.10.tar.gz

[perl/modules/Variable-Magic.git] / t / 16-huf.t

diff --git a/t/16-huf.t b/t/16-huf.t
new file mode 100644 (file)
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--- /dev/null
+++ b/t/16-huf.t
@@ -0,0 +1,51 @@
+#!perl -T
+
+use strict;
+use warnings;
+
+use Test::More;
+
+use Variable::Magic qw/wizard cast dispell VMG_UVAR/;
+
+if (!VMG_UVAR) {
+ plan skip_all => 'No nice uvar magic for this perl';
+}
+
+eval "use Hash::Util::FieldHash qw/fieldhash/";
+if ($@) {
+ plan skip_all => 'Hash::Util::FieldHash required for testing uvar interaction';
+} else {
+ plan tests => 12;
+}
+
+fieldhash(my %h);
+
+bless \(my $obj = {}), 'Variable::Magic::Test::Mock';
+$h{$obj} = 5;
+
+my ($w, $c) = (undef, 0);
+
+eval { $w = wizard fetch => sub { ++$c }, store => sub { --$c } };
+ok(!$@, "wizard with uvar creation error ($@)");
+ok(defined $w, 'wizard with uvar is defined');
+ok(ref($w) eq 'SCALAR', 'wizard with uvar is a scalar ref');
+
+my $res = eval { cast %h, $w };
+ok(!$@, "cast uvar magic on fieldhash croaks ($@)");
+ok($res, 'cast uvar magic on fieldhash invalid');
+
+my $s = $h{$obj};
+ok($s == 5, 'fetch magic on fieldhash doesn\'t clobber');
+ok($c == 1, 'fetch magic on fieldhash');
+
+$h{$obj} = 7;
+ok($c == 0, 'store magic on fieldhash');
+ok($h{$obj} == 7, 'store magic on fieldhash doesn\'t clobber'); # $c == 1
+
+$res = eval { dispell %h, $w };
+ok(!$@, "dispell uvar magic on fieldhash croaks ($@)");
+ok($res, 'dispell uvar magic on fieldhash invalid');
+
+$h{$obj} = 11;
+$s = $h{$obj};
+ok($s == 11, 'store/fetch on fieldhash after dispell still ok');