Extend test

[dbsrgits/DBIx-Class.git] / t / prefetch / incomplete.t

diff --git a/t/prefetch/incomplete.t b/t/prefetch/incomplete.t
new file mode 100644 (file)
index 0000000..a93e693
--- /dev/null
+++ b/t/prefetch/incomplete.t
@@ -0,0 +1,53 @@
+use strict;
+use warnings;  
+
+use Test::More;
+use Test::Exception;
+use lib qw(t/lib);
+use DBICTest;
+
+plan tests => 9;
+
+my $schema = DBICTest->init_schema();
+
+lives_ok(sub {
+  # while cds.* will be selected anyway (prefetch currently forces the result of _resolve_prefetch)
+  # only the requested me.name column will be fetched.
+
+  # reference sql with select => [...]
+  #   SELECT me.name, cds.title, cds.cdid, cds.artist, cds.title, cds.year, cds.genreid, cds.single_track FROM ...
+
+  my $rs = $schema->resultset('Artist')->search(
+    { 'cds.title' => { '!=', 'Generic Manufactured Singles' } },
+    {
+      prefetch => [ qw/ cds / ],
+      order_by => [ { -desc => 'me.name' }, 'cds.title' ],
+      select => [qw/ me.name  cds.title / ],
+    }
+  );
+
+  is ($rs->count, 2, 'Correct number of collapsed artists');
+  my $we_are_goth = $rs->first;
+  is ($we_are_goth->name, 'We Are Goth', 'Correct first artist');
+  is ($we_are_goth->cds->count, 1, 'Correct number of CDs for first artist');
+  is ($we_are_goth->cds->first->title, 'Come Be Depressed With Us', 'Correct cd for artist');
+}, 'explicit prefetch on a keyless object works');
+
+
+lives_ok(sub {
+  # test implicit prefetch as well
+
+  my $rs = $schema->resultset('CD')->search(
+    { title => 'Generic Manufactured Singles' },
+    {
+      join=> 'artist',
+      select => [qw/ me.title artist.name / ],
+    }
+  );
+
+  my $cd = $rs->next;
+  is ($cd->title, 'Generic Manufactured Singles', 'CD title prefetched correctly');
+  isa_ok ($cd->artist, 'DBICTest::Artist');
+  is ($cd->artist->name, 'Random Boy Band', 'Artist object has correct name');
+
+}, 'implicit keyless prefetch works');