Importing Variable-Magic-0.08.tar.gz

[perl/modules/Variable-Magic.git] / t / 11-multiple.t

diff --git a/t/11-multiple.t b/t/11-multiple.t
index 21f37d23d492bf6ca3c0fba61812c68da3e637e2..0c8da3969c937706c6715b4ae00ccd19734309b5 100644 (file)
--- a/t/11-multiple.t
+++ b/t/11-multiple.t
@@ -3,9 +3,9 @@
 use strict;
 use warnings;
 
-use Test::More tests => 33;
+use Test::More tests => 33 + 24 + 12;
 
-use Variable::Magic qw/wizard cast dispell/;
+use Variable::Magic qw/wizard cast dispell VMG_UVAR/;
 
 my $n = 3;
 my @w;
@@ -75,3 +75,97 @@ ok($c[2] == 0, 'set magic 2 after dispelled 1 & 0');
 $res = eval { dispell $a, $w[2] };
 ok(!$@, "dispell magic 2 croaks ($@)");
 ok($res, 'dispell magic 2 invalid');
+
+SKIP: {
+ skip 'No nice uvar magic for this perl', 24 unless VMG_UVAR;
+
+ $n = 2;
+ @c = (0) x $n;
+
+ eval { $w[0] = wizard fetch => sub { ++$c[0] }, store => sub { --$c[0] } };
+ ok(!$@, "wizard with uvar 0 creation error ($@)");
+ eval { $w[1] = wizard fetch => sub { ++$c[1] }, store => sub { --$c[1] } };
+ ok(!$@, "wizard with uvar 1 creation error ($@)");
+
+ multi sub {
+  my ($i) = @_;
+  $w[$i]
+ }, sub {
+  my ($i, $res, $err) = @_;
+  ok(defined $res, "wizard with uvar $i is defined");
+  ok(ref($w[$i]) eq 'SCALAR', "wizard with uvar $i is a scalar ref");
+ };
+
+ my %h = (a => 1, b => 2);
+
+ multi sub {
+  my ($i) = @_;
+  cast %h, $w[$i];
+ }, sub {
+  my ($i, $res, $err) = @_;
+  ok(!$err, "cast uvar magic $i croaks ($err)");
+  ok($res, "cast uvar magic $i invalid");
+ };
+
+ my $s = $h{a};
+ ok($s == 1, 'fetch magic doesn\'t clobber');
+ for (0 .. $n - 1) { ok($c[$_] == 1, "fetch magic $_"); }
+
+ $h{a} = 3;
+ for (0 .. $n - 1) { ok($c[$_] == 0, "store magic $_"); }
+ ok($h{a} == 3, 'store magic doesn\'t clobber'); # $c[$_] == 1 for 0 .. 1
+
+ my $res = eval { dispell %h, $w[1] };
+ ok(!$@, "dispell uvar magic 1 croaks ($@)");
+ ok($res, 'dispell uvar magic 1 invalid');
+
+ $s = $h{b};
+ ok($s == 2, 'fetch magic after dispelled 1 doesn\'t clobber');
+ for (0) { ok($c[$_] == 2, "fetch magic $_ after dispelled 1"); }
+ 
+ $h{b} = 4;
+ for (0) { ok($c[$_] == 1, "store magic $_ after dispelled 1"); }
+ ok($h{b} == 4, 'store magic doesn\'t clobber'); # $c[$_] == 2 for 0
+
+ $res = eval { dispell %h, $w[0] };
+ ok(!$@, "dispell uvar magic 0 croaks ($@)");
+ ok($res, 'dispell uvar magic 0 invalid');
+}
+
+SKIP: {
+ eval "use Hash::Util::FieldHash qw/fieldhash/";
+ skip 'Hash::Util::FieldHash required for testing uvar interaction', 12
+      unless VMG_UVAR && !$@;
+
+ 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');
+}