Move helperrels/26sqlt.t, and all t/run/*.tl scripts, to t/*.t

[dbsrgits/DBIx-Class.git] / t / 83cache.t

diff --git a/t/83cache.t b/t/83cache.t
new file mode 100644 (file)
index 0000000..a3c94c0
--- /dev/null
+++ b/t/83cache.t
@@ -0,0 +1,181 @@
+use strict;
+use warnings;  
+
+use Test::More;
+use lib qw(t/lib);
+use DBICTest;
+
+my $schema = DBICTest::init_schema();
+
+my $queries;
+$schema->storage->debugcb( sub{ $queries++ } );
+
+eval "use DBD::SQLite";
+plan skip_all => 'needs DBD::SQLite for testing' if $@;
+plan tests => 22;
+
+my $rs = $schema->resultset("Artist")->search(
+  { artistid => 1 }
+);
+
+my $artist = $rs->first;
+
+ok( !defined($rs->get_cache), 'cache is not populated without cache attribute' );
+
+$rs = $schema->resultset('Artist')->search( undef, { cache => 1 } );
+my $artists = [ $rs->all ];
+
+is( scalar @{$rs->get_cache}, 3, 'all() populates cache for search with cache attribute' );
+
+$rs->clear_cache;
+
+ok( !defined($rs->get_cache), 'clear_cache is functional' );
+
+$rs->next;
+
+is( scalar @{$rs->get_cache}, 3, 'next() populates cache for search with cache attribute' );
+
+pop( @$artists );
+$rs->set_cache( $artists );
+
+is( scalar @{$rs->get_cache}, 2, 'set_cache() is functional' );
+
+$cd = $schema->resultset('CD')->find(1);
+
+$rs->clear_cache;
+
+$queries = 0;
+$schema->storage->debug(1);
+
+$rs = $schema->resultset('Artist')->search( undef, { cache => 1 } );
+while( $artist = $rs->next ) {}
+$artist = $rs->first();
+
+is( $queries, 1, 'revisiting a row does not issue a query when cache => 1' );
+
+$schema->storage->debug(0);
+
+my @a = $schema->resultset("Artist")->search(
+  { },
+  {
+    join => [ qw/ cds /],
+    prefetch => [qw/ cds /],
+  }
+);
+
+is(scalar @a, 3, 'artist with cds: count parent objects');
+
+$rs = $schema->resultset("Artist")->search(
+  { 'artistid' => 1 },
+  {
+    join => [ qw/ cds /],
+    prefetch => [qw/ cds /],
+  }
+);
+
+use Data::Dumper; $Data::Dumper::Deparse = 1;
+
+# start test for prefetch SELECT count
+$queries = 0;
+$schema->storage->debug(1);
+
+$artist = $rs->first;
+$rs->reset();
+
+# make sure artist contains a related resultset for cds
+is( ref $artist->{related_resultsets}->{cds}, 'DBIx::Class::ResultSet', 'artist has a related_resultset for cds' );
+
+# check if $artist->cds->get_cache is populated
+is( scalar @{$artist->cds->get_cache}, 3, 'cache for artist->cds contains correct number of records');
+
+# ensure that $artist->cds returns correct number of objects
+is( scalar ($artist->cds), 3, 'artist->cds returns correct number of objects' );
+
+# ensure that $artist->cds->count returns correct value
+is( $artist->cds->count, 3, 'artist->cds->count returns correct value' );
+
+# ensure that $artist->count_related('cds') returns correct value
+is( $artist->count_related('cds'), 3, 'artist->count_related returns correct value' );
+
+is($queries, 1, 'only one SQL statement executed');
+
+$schema->storage->debug(0);
+
+# make sure related_resultset is deleted after object is updated
+$artist->set_column('name', 'New Name');
+$artist->update();
+
+is( scalar keys %{$artist->{related_resultsets}}, 0, 'related resultsets deleted after update' );
+
+# todo: make sure caching works with nested prefetch e.g. $artist->cds->tracks
+$rs = $schema->resultset("Artist")->search(
+  { artistid => 1 },
+  {
+    join => { cds => 'tags' },
+    prefetch => {
+      cds => 'tags'
+    },
+  }
+);
+{
+my $artist_count_before = $schema->resultset('Artist')->count;
+$schema->resultset("Artist")->create({artistid=>4,name=>qq{Humoungous Hamsters}});
+is($schema->resultset('Artist')->count, $artist_count_before + 1, 'count() reflects new artist');
+my $artist = $schema->resultset("Artist")->search(
+  { artistid => 4 },{prefetch=>[qw/cds/]}
+)->first;
+
+is($artist->cds, 0, 'No cds for this artist');
+}
+
+# SELECT count for nested has_many prefetch
+$queries = 0;
+$schema->storage->debug(1);
+
+$artist = ($rs->all)[0];
+
+is($queries, 1, 'only one SQL statement executed');
+
+$schema->storage->debug(0);
+
+my @objs;
+#$artist = $rs->find(1);
+
+$queries = 0;
+$schema->storage->debug(1);
+
+my $cds = $artist->cds;
+my $tags = $cds->next->tags;
+while( my $tag = $tags->next ) {
+  push @objs, $tag->tagid; #warn "tag:", $tag->ID, " => ", $tag->tag;
+}
+
+is_deeply( \@objs, [ 3 ], 'first cd has correct tags' );
+
+$tags = $cds->next->tags;
+@objs = ();
+while( my $tag = $tags->next ) {
+  push @objs, $tag->id; #warn "tag: ", $tag->ID;
+}
+
+is_deeply( \@objs, [ 2, 5, 8 ], 'second cd has correct tags' );
+
+is( $queries, 0, 'no additional SQL statements while checking nested data' );
+
+# start test for prefetch SELECT count
+$queries = 0;
+
+$artist = $schema->resultset('Artist')->find(1, { prefetch => [qw/cds/] });
+
+is( $queries, 1, 'only one select statement on find with inline has_many prefetch' );
+
+# start test for prefetch SELECT count
+$queries = 0;
+
+$rs = $schema->resultset('Artist')->search(undef, { prefetch => [qw/cds/] });
+$artist = $rs->find(1);
+
+is( $queries, 1, 'only one select statement on find with has_many prefetch on resultset' );
+
+$schema->storage->debug(0);
+