From: Peter Rabbitson Date: Thu, 7 May 2009 09:12:41 +0000 (+0000) Subject: Add failing test by gheift X-Git-Tag: v0.08103~70^2~4 X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=4ca037d250207a4ade90a3190af16a5fdc2625f4;p=dbsrgits%2FDBIx-Class.git Add failing test by gheift --- diff --git a/t/prefetch/diamond.t b/t/prefetch/diamond.t new file mode 100644 index 0000000..fe30ac8 --- /dev/null +++ b/t/prefetch/diamond.t @@ -0,0 +1,107 @@ +# Test if prefetch and join in diamond relationship fetching the correct rows +use strict; +use warnings; + +use Test::More; +use lib qw(t/lib); +use DBICTest; + +my $schema = DBICTest->init_schema(); + +$schema->populate('Artwork', [ + [ qw/cd_id/ ], + [ 1 ], +]); + +$schema->populate('Artwork_to_Artist', [ + [ qw/artwork_cd_id artist_id/ ], + [ 1, 2 ], +]); + +my $ars = $schema->resultset ('Artwork'); + +# The relationship diagram here is: +# +# $ars --> artwork_to_artist +# | | +# | | +# V V +# cd ------> artist +# +# The current artwork belongs to a cd by artist1 +# but the artwork itself is painted by artist2 +# +# What we try is all possible permutations of join/prefetch +# combinations in both directions, while always expecting to +# arrive at the specific artist at the end of each path. + + +my $cd_paths = { + 'no cd' => [], + 'cd' => ['cd'], + 'cd->artist1' => [{'cd' => 'artist'}] +}; +my $a2a_paths = { + 'no a2a' => [], + 'a2a' => ['artwork_to_artist'], + 'a2a->artist2' => [{'artwork_to_artist' => 'artist'}] +}; + +my %tests; + +foreach my $cd_path (keys %$cd_paths) { + + foreach my $a2a_path (keys %$a2a_paths) { + + + $tests{sprintf "join %s, %s", $cd_path, $a2a_path} = $ars->search({}, { + 'join' => [ + @{ $cd_paths->{$cd_path} }, + @{ $a2a_paths->{$a2a_path} }, + ], + 'prefetch' => [ + ], + }); + + + $tests{sprintf "prefetch %s, %s", $cd_path, $a2a_path} = $ars->search({}, { + 'join' => [ + ], + 'prefetch' => [ + @{ $cd_paths->{$cd_path} }, + @{ $a2a_paths->{$a2a_path} }, + ], + }); + + + $tests{sprintf "join %s, prefetch %s", $cd_path, $a2a_path} = $ars->search({}, { + 'join' => [ + @{ $cd_paths->{$cd_path} }, + ], + 'prefetch' => [ + @{ $a2a_paths->{$a2a_path} }, + ], + }); + + + $tests{sprintf "join %s, prefetch %s", $a2a_path, $cd_path} = $ars->search({}, { + 'join' => [ + @{ $a2a_paths->{$a2a_path} }, + ], + 'prefetch' => [ + @{ $cd_paths->{$cd_path} }, + ], + }); + + } +} + +plan tests => (scalar (keys %tests) * 3); + +foreach my $name (keys %tests) { + foreach my $artwork ($tests{$name}->all()) { + is($artwork->id, 1, $name . ', correct artwork'); + is($artwork->cd->artist->artistid, 1, $name . ', correct artist_id over cd'); + is($artwork->artwork_to_artist->first->artist->artistid, 2, $name . ', correct artist_id over A2A'); + } +} \ No newline at end of file