Importing Variable-Magic-0.08.tar.gz

[perl/modules/Variable-Magic.git] / t / 28-uvar.t

diff --git a/t/28-uvar.t b/t/28-uvar.t
new file mode 100644 (file)
index 0000000..b6c8959
--- /dev/null
+++ b/t/28-uvar.t
@@ -0,0 +1,69 @@
+#!perl -T
+
+use strict;
+use warnings;
+
+use Test::More;
+
+use Variable::Magic qw/wizard cast dispell VMG_UVAR/;
+
+if (VMG_UVAR) {
+ plan tests => 16;
+} else {
+ plan skip_all => 'No nice uvar magic for this perl';
+}
+
+my @c = (0) x 4;
+my @x = (0) x 4;
+
+sub check {
+ for (0 .. 3) { return 0 unless $c[$_] == $x[$_]; }
+ return 1;
+}
+
+my $wiz = wizard 'fetch'  => sub { ++$c[0] },
+                 'store'  => sub { ++$c[1] },
+                 'exists' => sub { ++$c[2] },
+                 'delete' => sub { ++$c[3] };
+ok(check(), 'uvar : create wizard');
+
+my %h = (a => 1, b => 2, c => 3);
+my $res = cast %h, $wiz;
+
+ok($res,    'uvar : cast succeeded');
+ok(check(), 'uvar : cast didn\'t triggered the callback');
+
+my $x = $h{a};
+++$x[0];
+ok(check(), 'uvar : fetch directly');
+ok($x,      'uvar : fetch directly correctly');
+
+$x = "$h{b}";
+++$x[0];
+ok(check(), 'uvar : fetch by interpolation');
+ok($x == 2, 'uvar : fetch by interpolation correctly');
+
+$h{c} = 4;
+++$x[1];
+ok(check(), 'uvar : store directly');
+
+$x = $h{c} = 5;
+++$x[1];
+ok(check(), 'uvar : fetch and store');
+ok($x == 5, 'uvar : fetch and store correctly');
+
+$x = exists $h{c};
+++$x[2];
+ok(check(), 'uvar : exists');
+ok($x,      'uvar : exists correctly');
+
+$x = delete $h{c};
+++$x[3];
+ok(check(), 'uvar : delete existing key');
+ok($x == 5, 'uvar : delete existing key correctly');
+
+$x = delete $h{z};
+++$x[3];
+ok(check(),     'uvar : delete non-existing key');
+ok(!defined $x, 'uvar : delete non-existing key correctly');
+