some more simple sql script

store/mysql-scripts/test-fk.sql

+/* should succeed */
+insert into groups (name) values ('test');
+
+/* should fail */
+insert into files (size) values(100);
+insert into files (group_name, size) values('invalid', 101);
+
+/* should succeed */
+insert into files (group_name, size) values('test', 101);
+insert into files (group_name, size) values('test', 102);
+select * from files;
+
+
+/* should fail */
+insert into playlists () values ();
+
+/* should succeed */
+insert into playlists (group_name) values('test');
+
+
+/* should fail */
+insert into playlist_entries (uri) values ('http://stream.example.com/live.mp3');
+insert into playlist_entries (playlist_id, uri) values (1, 'http://stream.example.com/live.mp3');
+insert into playlist_entries (playlist_id, line_num, uri) values (17, 1, 'http://stream.example.com/live.mp3');
+
+/* should succeed */
+insert into playlist_entries (playlist_id, line_num, uri) values (1, 1, 'http://stream.example.com/live.mp3');
+
+/* should fail */
+insert into playlist_entries (playlist_id, line_num, uri) values (1, 1, 'http://stream.example.com/other.mp3');
+insert into playlist_entries (playlist_id, line_num, file_id) values (1, 4, 23);
+
+/* should succeed */
+insert into playlist_entries (playlist_id, line_num, file_id) values (1, 4, 2);
+delete from files where id = 1;
+
+/* should fail */
+delete from files where id = 2;
+
+/* should succeed */
+delete from playlists where id = 1;
+delete from files where id = 2;