Add single() ro RSC

[dbsrgits/DBIx-Class.git] / t / 88result_set_column.t

diff --git a/t/88result_set_column.t b/t/88result_set_column.t
index ef4912b..c744121 100644 (file)
--- a/t/88result_set_column.t
+++ b/t/88result_set_column.t
@@ -1,23 +1,23 @@
 use strict;
-use warnings;  
+use warnings;
 
 use Test::More;
+use Test::Warn;
+use Test::Exception;
 use lib qw(t/lib);
 use DBICTest;
 
 my $schema = DBICTest->init_schema();
 
-plan tests => 10; 
-
-my $cd;
-my $rs = $cd = $schema->resultset("CD")->search({});
+my $rs = $schema->resultset("CD")->search({}, { order_by => 'cdid' });
 
 my $rs_title = $rs->get_column('title');
 my $rs_year = $rs->get_column('year');
+my $max_year = $rs->get_column(\'MAX (year)');
 
 is($rs_title->next, 'Spoonful of bees', "next okay");
-
 is_deeply( [ sort $rs_year->func('DISTINCT') ], [ 1997, 1998, 1999, 2001 ],  "wantarray context okay");
+ok ($max_year->next == $rs_year->max, q/get_column (\'FUNC') ok/);
 
 my @all = $rs_title->all;
 cmp_ok(scalar @all, '==', 5, "five titles returned");
@@ -27,25 +27,75 @@ is($rs_title->min, 'Caterwaulin\' Blues', "min okay for title");
 
 cmp_ok($rs_year->sum, '==', 9996, "three artists returned");
 
+$rs_year->reset;
+is($rs_year->next, 1999, "reset okay");
+
+is($rs_year->first, 1999, "first okay");
+
+warnings_exist (sub {
+  is($rs_year->single, 1999, "single okay");
+}, qr/Query returned more than one row/, 'single warned');
+
+# test +select/+as for single column
 my $psrs = $schema->resultset('CD')->search({},
     {
         '+select'   => \'COUNT(*)',
         '+as'       => 'count'
     }
 );
-ok(defined($psrs->get_column('count')), '+select/+as count');
+lives_ok(sub { $psrs->get_column('count')->next }, '+select/+as additional column "count" present (scalar)');
+dies_ok(sub { $psrs->get_column('noSuchColumn')->next }, '+select/+as nonexistent column throws exception');
 
+# test +select/+as for multiple columns
 $psrs = $schema->resultset('CD')->search({},
     {
         '+select'   => [ \'COUNT(*)', 'title' ],
         '+as'       => [ 'count', 'addedtitle' ]
     }
 );
-ok(defined($psrs->get_column('count')), '+select/+as arrayref count');
-ok(defined($psrs->get_column('addedtitle')), '+select/+as title');
+lives_ok(sub { $psrs->get_column('count')->next }, '+select/+as multiple additional columns, "count" column present');
+lives_ok(sub { $psrs->get_column('addedtitle')->next }, '+select/+as multiple additional columns, "addedtitle" column present');
+
+# test +select/+as for overriding a column
+$psrs = $schema->resultset('CD')->search({},
+    {
+        'select'   => \"'The Final Countdown'",
+        'as'       => 'title'
+    }
+);
+is($psrs->get_column('title')->next, 'The Final Countdown', '+select/+as overridden column "title"');
 
 {
   my $rs = $schema->resultset("CD")->search({}, { prefetch => 'artist' });
   my $rsc = $rs->get_column('year');
   is( $rsc->{_parent_resultset}->{attrs}->{prefetch}, undef, 'prefetch wiped' );
 }
+
+# test sum()
+is ($schema->resultset('BooksInLibrary')->get_column ('price')->sum, 125, 'Sum of a resultset works correctly');
+
+# test sum over search_related
+my $owner = $schema->resultset('Owners')->find ({ name => 'Newton' });
+ok ($owner->books->count > 1, 'Owner Newton has multiple books');
+is ($owner->search_related ('books')->get_column ('price')->sum, 60, 'Correctly calculated price of all owned books');
+
+
+# make sure joined/prefetched get_column of a PK dtrt
+
+$rs->reset;
+my $j_rs = $rs->search ({}, { join => 'tracks' })->get_column ('cdid');
+is_deeply (
+  [ $j_rs->all ],
+  [ map { my $c = $rs->next; ( ($c->id) x $c->tracks->count ) } (1 .. $rs->count) ],
+  'join properly explodes amount of rows from get_column',
+);
+
+$rs->reset;
+my $p_rs = $rs->search ({}, { prefetch => 'tracks' })->get_column ('cdid');
+is_deeply (
+  [ $p_rs->all ],
+  [ $rs->get_column ('cdid')->all ],
+  'prefetch properly collapses amount of rows from get_column',
+);
+
+done_testing;