ocaml-containers/tests/core/t_heap.ml
Simon Cruanes 10865eaced reformat
2022-07-04 13:36:06 -04:00

107 lines
2.4 KiB
OCaml

open CCHeap
module T = (val Containers_testlib.make ~__FILE__ ())
include T
module H = CCHeap.Make (struct
type t = int
let leq x y = x <= y
end)
let rec is_sorted l =
match l with
| [ _ ] | [] -> true
| x :: (y :: _ as l') -> x <= y && is_sorted l'
let extract_list = H.to_list_sorted;;
t @@ fun () ->
let h = H.of_list [ 5; 3; 4; 1; 42; 0 ] in
let h, x = H.take_exn h in
assert_equal ~printer:string_of_int 0 x;
let h, x = H.take_exn h in
assert_equal ~printer:string_of_int 1 x;
let h, x = H.take_exn h in
assert_equal ~printer:string_of_int 3 x;
let h, x = H.take_exn h in
assert_equal ~printer:string_of_int 4 x;
let h, x = H.take_exn h in
assert_equal ~printer:string_of_int 5 x;
let h, x = H.take_exn h in
assert_equal ~printer:string_of_int 42 x;
assert_raises
(function
| H.Empty -> true
| _ -> false)
(fun () -> H.take_exn h);
true
;;
q ~count:30
Q.(list_of_size Gen.(return 1_000) int)
(fun l ->
(* put elements into a heap *)
let h = H.of_iter (Iter.of_list l) in
assert_equal 1_000 (H.size h);
let l' = extract_list h in
is_sorted l')
;;
(* test filter *)
q ~count:30
Q.(list_of_size Gen.(return 1_000) int)
(fun l ->
(* put elements into a heap *)
let h = H.of_iter (Iter.of_list l) in
let h = H.filter (fun x -> x mod 2 = 0) h in
assert (H.to_iter h |> Iter.for_all (fun x -> x mod 2 = 0));
let l' = extract_list h in
is_sorted l')
;;
q
Q.(list_of_size Gen.(return 1_000) int)
(fun l ->
(* put elements into a heap *)
let h = H.of_iter (Iter.of_list l) in
let l' = H.to_iter_sorted h |> Iter.to_list in
is_sorted l')
;;
q
Q.(list int)
(fun l ->
extract_list (H.of_list l) = extract_list (H.of_gen (CCList.to_gen l)))
;;
q
Q.(list int)
(fun l ->
let h = H.of_list l in
H.to_gen h |> CCList.of_gen |> List.sort Stdlib.compare
= (H.to_list h |> List.sort Stdlib.compare))
;;
q
Q.(list int)
(fun l ->
let h = H.of_list l in
H.to_string string_of_int h
= (List.sort Stdlib.compare l |> List.map string_of_int |> String.concat ","))
;;
q
Q.(list int)
(fun l ->
let h = H.of_list l in
H.to_string ~sep:" " string_of_int h
= (List.sort Stdlib.compare l |> List.map string_of_int |> String.concat " "))
;;
q
Q.(list_of_size Gen.(return 1_000) int)
(fun l ->
let module H' = Make_from_compare (CCInt) in
let h = H'.of_list l in
let l' = H'.to_list_sorted h in
is_sorted l')