X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2F42toplimit.t;h=242e62325317f537b9c53674f5819c7619e8d0ca;hb=67e894d2d14f9c10f363646c567cd465cb4b1f6f;hp=4fad29cb06b3fd26fe6bce01e65e3ebbc9f450b0;hpb=f48dd03f381ac3ff21655600023249830b869b0c;p=dbsrgits%2FDBIx-Class.git

diff --git a/t/42toplimit.t b/t/42toplimit.t
index 4fad29c..242e623 100644
--- a/t/42toplimit.t
+++ b/t/42toplimit.t
@@ -1,26 +1,152 @@
-use strict;
-use warnings;
-
-use Test::More;
-use DBIx::Class::Storage::DBI;
-
-plan tests => 1;
-
-my $sa = new DBIC::SQL::Abstract;
-
-$sa->limit_dialect( 'Top' );
-
-is(
-    $sa->select( 'rubbish', [ 'foo.id', 'bar.id' ], undef, { order_by => 'artistid' }, 1, 3 ),
-    'SELECT * FROM
-(
-    SELECT TOP 1 * FROM
-    (
-        SELECT TOP 4  foo.id, bar.id FROM rubbish ORDER BY artistid ASC
-    ) AS foo
-    ORDER BY artistid DESC
-) AS bar
-ORDER BY artistid ASC
-',
-    "make sure limit_dialect( 'Top' ) is working okay"
-);
+use strict;
+use warnings;
+
+use Test::More;
+use lib qw(t/lib);
+use DBICTest;
+use DBIC::SqlMakerTest;
+
+my $schema = DBICTest->init_schema;
+
+# Trick the sqlite DB to use Top limit emulation
+# We could test all of this via $sq->$op directly,
+# but some conditions need a $rsrc
+delete $schema->storage->_sql_maker->{_cached_syntax};
+$schema->storage->_sql_maker->limit_dialect ('Top');
+
+my $rs = $schema->resultset ('BooksInLibrary')->search ({}, { prefetch => 'owner', rows => 1, offset => 3 });
+
+sub default_test_order {
+   my $order_by = shift;
+   is_same_sql_bind(
+      $rs->search ({}, {order_by => $order_by})->as_query,
+      "(SELECT
+        TOP 1 me__id, source, owner, title, price, owner__id, name FROM
+         (SELECT
+           TOP 4 me.id AS me__id, me.source, me.owner, me.title, me.price, owner.id AS owner__id, owner.name
+           FROM books me
+           JOIN owners owner ON
+           owner.id = me.owner
+           WHERE ( source = ? )
+           ORDER BY me__id ASC
+         ) me ORDER BY me__id DESC
+       )",
+    [ [ source => 'Library' ] ],
+  );
+}
+
+sub test_order {
+  my $args = shift;
+
+  my $req_order = $args->{order_req}
+    ? "ORDER BY $args->{order_req}"
+    : ''
+  ;
+
+  is_same_sql_bind(
+    $rs->search ({}, {order_by => $args->{order_by}})->as_query,
+    "(SELECT
+      me__id, source, owner, title, price, owner__id, name FROM
+      (SELECT
+        TOP 1 me__id, source, owner, title, price, owner__id, name FROM
+         (SELECT
+           TOP 4 me.id AS me__id, me.source, me.owner, me.title, me.price, owner.id AS owner__id, owner.name FROM
+           books me
+           JOIN owners owner ON owner.id = me.owner
+           WHERE ( source = ? )
+           ORDER BY $args->{order_inner}
+         ) me ORDER BY $args->{order_outer}
+      ) me $req_order
+    )",
+    [ [ source => 'Library' ] ],
+  );
+}
+
+my @tests = (
+  {
+    order_by => \'foo DESC',
+    order_req => 'foo DESC',
+    order_inner => 'foo DESC',
+    order_outer => 'foo ASC'
+  },
+  {
+    order_by => { -asc => 'foo'  },
+    order_req => 'foo ASC',
+    order_inner => 'foo ASC',
+    order_outer => 'foo DESC',
+  },
+  {
+    order_by => 'foo',
+    order_req => 'foo',
+    order_inner => 'foo ASC',
+    order_outer => 'foo DESC',
+  },
+  {
+    order_by => [ qw{ foo bar}   ],
+    order_req => 'foo, bar',
+    order_inner => 'foo ASC,bar ASC',
+    order_outer => 'foo DESC, bar DESC',
+  },
+  {
+    order_by => { -desc => 'foo' },
+    order_req => 'foo DESC',
+    order_inner => 'foo DESC',
+    order_outer => 'foo ASC',
+  },
+  {
+    order_by => ['foo', { -desc => 'bar' } ],
+    order_req => 'foo, bar DESC',
+    order_inner => 'foo ASC, bar DESC',
+    order_outer => 'foo DESC, bar ASC',
+  },
+  {
+    order_by => { -asc => [qw{ foo bar }] },
+    order_req => 'foo ASC, bar ASC',
+    order_inner => 'foo ASC, bar ASC',
+    order_outer => 'foo DESC, bar DESC',
+  },
+  {
+    order_by => [
+      { -asc => 'foo' },
+      { -desc => [qw{bar}] },
+      { -asc  => [qw{hello sensors}]},
+    ],
+    order_req => 'foo ASC, bar DESC, hello ASC, sensors ASC',
+    order_inner => 'foo ASC, bar DESC, hello ASC, sensors ASC',
+    order_outer => 'foo DESC, bar ASC, hello DESC, sensors DESC',
+  },
+);
+
+my @default_tests = ( undef, '', {}, [] );
+
+plan (tests => scalar @tests + scalar @default_tests + 1);
+
+test_order ($_) for @tests;
+default_test_order ($_) for @default_tests;
+
+
+is_same_sql_bind (
+  $rs->search ({}, { group_by => 'title', order_by => 'title' })->as_query,
+'(SELECT
+me.id, me.source, me.owner, me.title, me.price, owner.id, owner.name FROM
+   ( SELECT
+      id, source, owner, title, price FROM
+      ( SELECT
+         TOP 1 id, source, owner, title, price FROM
+         ( SELECT
+            TOP 4 me.id, me.source, me.owner, me.title, me.price FROM
+            books me  JOIN
+            owners owner ON owner.id = me.owner
+            WHERE ( source = ? )
+            GROUP BY title
+            ORDER BY title ASC
+         ) me
+         ORDER BY title DESC
+      ) me
+      ORDER BY title
+   ) me  JOIN
+   owners owner ON owner.id = me.owner WHERE
+   ( source = ? )
+   ORDER BY title)' ,
+  [ [ source => 'Library' ], [ source => 'Library' ] ],
+);