Slice support for iterators

[dbsrgits/DBIx-Class.git] / t / cdbi-t / 13-constraint.t

diff --git a/t/cdbi-t/13-constraint.t b/t/cdbi-t/13-constraint.t
new file mode 100644 (file)
index 0000000..c25227a
--- /dev/null
+++ b/t/cdbi-t/13-constraint.t
@@ -0,0 +1,113 @@
+use strict;
+use Test::More;
+
+BEGIN {
+       eval "use DBD::SQLite";
+       plan $@ ? (skip_all => 'needs DBD::SQLite for testing') : (tests => 23);
+}
+
+use lib 't/testlib';
+use Film;
+
+sub valid_rating {
+       my $value = shift;
+       my $ok = grep $value eq $_, qw/U Uc PG 12 15 18/;
+       return $ok;
+}
+
+Film->add_constraint('valid rating', Rating => \&valid_rating);
+
+my %info = (
+       Title    => 'La Double Vie De Veronique',
+       Director => 'Kryzstof Kieslowski',
+       Rating   => '18',
+);
+
+{
+       local $info{Title}  = "nonsense";
+       local $info{Rating} = 19;
+       eval { Film->create({%info}) };
+       ok $@, $@;
+       ok !Film->retrieve($info{Title}), "No film created";
+       is(Film->retrieve_all, 0, "So no films");
+}
+
+ok(my $ver = Film->create({%info}), "Can create with valid rating");
+is $ver->Rating, 18, "Rating 18";
+
+ok $ver->Rating(12), "Change to 12";
+ok $ver->update, "And update";
+is $ver->Rating, 12, "Rating now 12";
+
+eval {
+       $ver->Rating(13);
+       $ver->update;
+};
+ok $@, $@;
+is $ver->Rating, 12, "Rating still 12";
+ok $ver->delete, "Delete";
+
+# this threw an infinite loop in old versions
+Film->add_constraint('valid director', Director => sub { 1 });
+my $fred = Film->create({ Rating => '12' });
+
+# this test is a bit problematical because we don't supply a primary key
+# to the create() and the table doesn't use auto_increment or a sequence.
+ok $fred, "Got fred";
+
+{
+       ok +Film->constrain_column(rating => [qw/U PG 12 15 19/]),
+               "constraint_column";
+       my $narrower = eval { Film->create({ Rating => 'Uc' }) };
+       like $@, qr/fails.*constraint/, "Fails listref constraint";
+       my $ok = eval { Film->create({ Rating => 'U' }) };
+       is $@, '', "Can create with rating U";
+    SKIP: {
+        skip "No column objects", 2;
+       ok +Film->find_column('rating')->is_constrained, "Rating is constrained";
+       ok +Film->find_column('director')->is_constrained, "Director is not";
+    }
+}
+
+{
+       ok +Film->constrain_column(title => qr/The/), "constraint_column";
+       my $inferno = eval { Film->create({ Title => 'Towering Infero' }) };
+       like $@, qr/fails.*constraint/, "Can't create towering inferno";
+       my $the_inferno = eval { Film->create({ Title => 'The Towering Infero' }) };
+       is $@, '', "But can create THE towering inferno";
+}
+
+{
+
+       sub Film::_constrain_by_untaint {
+               my ($class, $col, $string, $type) = @_;
+               $class->add_constraint(
+                       untaint => $col => sub {
+                               my ($value, $self, $column_name, $changing) = @_;
+                               $value eq "today" ? $changing->{$column_name} = "2001-03-03" : 0;
+                       }
+               );
+       }
+       eval { Film->constrain_column(codirector => Untaint => 'date') };
+       is $@, '', 'Can constrain with untaint';
+       my $freeaa =
+               eval { Film->create({ title => "The Freaa", codirector => 'today' }) };
+       is $@, '', "Can create codirector";
+       is $freeaa->codirector, '2001-03-03', "Set the codirector";
+}
+
+__DATA__
+
+use CGI::Untaint;
+
+sub _constrain_by_untaint {
+       my ($class, $col, $string, $type) = @_;
+       $class->add_constraint(untaint => $col => sub {
+               my ($value, $self, $column_name, $changing) = @_;
+               my $h = CGI::Untaint->new({ %$changing });
+               return unless my $val = $h->extract("-as_$type" => $column_name);
+               $changing->{$column_name} = $val;
+               return 1;
+       });
+}
+