(use test)
(import ssql)

(test-group "selects"
  (test "simple query"
    "SELECT actors.firstname, actors.lastname FROM actors"
    (ssql->sql #f `(select (columns actors.firstname actors.lastname)
                     (from actors))))
  (test "many columns"
    "SELECT actors.id, actors.firstname, actors.lastname, roles.character, roles.movie_id AS movie FROM actors, roles"
    (ssql->sql #f `(select (columns (col actors id firstname lastname) (col roles character (as movie_id movie)))
                     (from actors roles))))
  (test "joined query"
    (string-append
     "SELECT actors.firstname, actors.lastname, roles.character, movies.title "

     "FROM ((actors LEFT JOIN roles ON (roles.actor_id = actors.id)) "
     "LEFT JOIN movies ON (movies.id = roles.movie_id))")
    (ssql->sql #f `(select (columns actors.firstname actors.lastname roles.character movies.title)
                     (from (join left
                                 (join left actors roles
                                       (on (= roles.actor_id actors.id)))
                                 movies
                                 (on (= movies.id roles.movie_id)))))))

  (test "order"
    "SELECT lastname, firstname FROM people ORDER BY lastname DESC, firstname"
    (ssql->sql #f '(select (columns lastname firstname) (from people) (order (desc lastname) firstname)))))


(test-group "syntax"
  (test "set literals"
    "SELECT one, two FROM (1, 2)"
    (ssql->sql #f '(select (columns one two) (from #(1 2))))))