Source file test_proc_bonsai.ml
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open! Core
open! Import
open Bonsai.For_open
open Bonsai.Let_syntax
module Query_response_tracker = Bonsai.Effect.For_testing.Query_response_tracker
open Proc
let sexp_of_packed_computation : type a. a Bonsai.Private.Computation.t -> Sexp.t =
fun t ->
Bonsai.Private.Skeleton.Computation.of_computation t
|> Bonsai.Private.Skeleton.Computation.sanitize_for_testing
|> Bonsai.Private.Skeleton.Computation.minimal_sexp_of_t
;;
let%expect_test "cutoff" =
let var = Bonsai.Var.create 0 in
let value = Bonsai.Var.value var in
let component = return @@ Value.cutoff value ~equal:(fun a b -> a % 2 = b % 2) in
let handle = Handle.create (Result_spec.string (module Int)) component in
Handle.show handle;
[%expect {| 0 |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| 0 |}];
Bonsai.Var.set var 1;
Handle.show handle;
[%expect {| 1 |}]
;;
let%expect_test "debug on change" =
let var = Bonsai.Var.create 0 in
let value = Bonsai.Var.value var in
let component = Bonsai.Debug.on_change value ~f:(fun i -> printf "%d" i) in
let handle = Handle.create Result_spec.invisible component in
Handle.show handle;
[%expect {| 0 |}];
Bonsai.Var.set var 1;
Handle.show handle;
[%expect {| 1 |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| 2 |}]
;;
let%expect_test "Setting cutoff on Bonsai values should not change previously set cutoffs"
=
let var = Bonsai.Var.create (0, 0) in
let value = Bonsai.Var.value var in
let component =
let%sub pair = return (Value.cutoff ~equal:phys_equal value) in
let%sub _ = return (Value.cutoff value ~equal:(fun (a1, _) (a2, _) -> a1 = a2)) in
return pair
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = int * int [@@deriving sexp]
end))
component
in
Handle.show handle;
[%expect {| (0 0) |}];
Bonsai.Var.set var (1, 0);
Handle.show handle;
[%expect {| (1 0) |}];
Bonsai.Var.set var (1, 2);
Handle.show handle;
[%expect {| (1 2) |}]
;;
let%expect_test "Cutoff set by let%arr ppx should not be applied to different \
incremental nodes"
=
let var = Bonsai.Var.create (0, 0) in
let value = Bonsai.Var.value var in
let component =
let%sub pair = return value in
let%sub _ =
let%arr a, _ = value in
a
in
return pair
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = int * int [@@deriving sexp]
end))
component
in
Handle.show handle;
[%expect {| (0 0) |}];
Bonsai.Var.set var (1, 0);
Handle.show handle;
[%expect {| (1 0) |}];
Bonsai.Var.set var (1, 2);
Handle.show handle;
[%expect {| (1 2) |}]
;;
let%expect_test "Cutoff propragates on named values regression" =
let var = Bonsai.Var.create (0, 0) in
let value = Bonsai.Var.value var in
let component =
let%sub tupled_input = return value in
let%sub left =
let tupled_input =
Value.cutoff tupled_input ~equal:(fun (old, _) (new_, _) -> phys_equal old new_)
in
let%arr left, _ = tupled_input in
left
in
let%sub right =
let tupled_input =
Value.cutoff tupled_input ~equal:(fun (_, old) (_, new_) -> phys_equal old new_)
in
let%arr _, right = tupled_input in
right
in
let%arr left = left
and right = right in
left, right
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = int * int [@@deriving sexp]
end))
component
in
Handle.show handle;
[%expect {| (0 0) |}];
Bonsai.Var.set var (1, 0);
Handle.show handle;
[%expect {| (1 0) |}];
Bonsai.Var.set var (1, 2);
Handle.show handle;
[%expect {| (1 2) |}]
;;
let%expect_test "What happens when cutoff nodes are nested?" =
let var = Bonsai.Var.create (0, 0) in
let value = Bonsai.Var.value var in
let component =
let first_cutoff = Value.cutoff value ~equal:(fun (_, a) (_, b) -> phys_equal a b) in
let second_cutoff =
Value.cutoff first_cutoff ~equal:(fun (a, _) (b, _) -> phys_equal a b)
in
return second_cutoff
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = int * int [@@deriving sexp]
end))
component
in
Handle.show handle;
[%expect {| (0 0) |}];
Bonsai.Var.set var (1, 0);
Handle.show handle;
[%expect {| (0 0) |}];
Bonsai.Var.set var (0, 2);
Handle.show handle;
[%expect {| (0 0) |}];
Bonsai.Var.set var (1, 2);
Handle.show handle;
[%expect {| (1 2) |}]
;;
let%expect_test "arrow-syntax" =
let component =
let%sub a = Bonsai.const "hi" in
let%sub b = Bonsai.const 5 in
let%arr a = a
and b = b in
sprintf "%s %d" a b
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| hi 5 |}]
;;
let%expect_test "mapn" =
let (_ : unit Computation.t) =
let%mapn.Computation () = Bonsai.const ()
and () = Bonsai.const ()
and () = Bonsai.const () in
()
in
()
;;
let%expect_test "if%sub" =
let component input =
let a = Value.return "hello" in
let b = Value.return "world" in
if%sub input then Bonsai.read a else Bonsai.read b
in
let var = Bonsai.Var.create true in
let handle =
Handle.create (Result_spec.string (module String)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {| hello |}];
Bonsai.Var.set var false;
Handle.show handle;
[%expect {| world |}]
;;
let%expect_test "call component" =
let add_one = Bonsai.pure (fun x -> x + 1) in
let component input =
let%sub a = add_one input in
return a
in
let var = Bonsai.Var.create 1 in
let handle =
Handle.create (Result_spec.sexp (module Int)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {| 2 |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| 3 |}]
;;
let%expect_test "store named in a ref" =
let name_ref = ref None in
let component =
let%sub x =
let%sub a = opaque_const 5 in
name_ref := Some a;
let%arr a = a in
a
in
let%arr x = x
and y = Option.value_exn !name_ref in
x + y
in
Expect_test_helpers_core.require_does_raise [%here] (fun () ->
Handle.create (Result_spec.sexp (module Int)) component);
[%expect
{| "A Value.t introduced by the [let%sub] expression at TEST_FILENAME:0:0 was used outside of the scope that it was declared in. Make sure that you aren't storing it inside a ref." |}]
;;
let%expect_test "on_display" =
let component =
let%sub state, set_state = Bonsai.state (module Int) ~default_model:0 in
let update =
let%map state = state
and set_state = set_state in
set_state (state + 1)
in
let%sub () = Bonsai.Edge.after_display update in
return state
in
let handle = Handle.create (Result_spec.sexp (module Int)) component in
Handle.show handle;
[%expect {| 0 |}];
Handle.show handle;
[%expect {| 1 |}];
Handle.show handle;
[%expect {| 2 |}];
Handle.show handle;
[%expect {| 3 |}]
;;
let%expect_test "on_display for updating a state" =
let component input =
let%sub state, set_state = Bonsai.state_opt (module Int) in
let%sub update =
match%sub state with
| None ->
return
@@
let%map set_state = set_state
and input = input in
Some (set_state (Some input))
| Some state ->
return
@@
let%map state = state
and set_state = set_state
and input = input in
if Int.equal state input then None else Some (set_state (Some input))
in
let%sub () = Bonsai.Edge.after_display' update in
return (Value.both input state)
in
let var = Bonsai.Var.create 1 in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = int * int option [@@deriving sexp_of]
end))
(component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {| (1 ()) |}];
Handle.show handle;
[%expect {| (1 (1)) |}];
Handle.show handle;
[%expect {| (1 (1)) |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| (2 (1)) |}];
Handle.show handle;
[%expect {| (2 (2)) |}];
Handle.show handle;
[%expect {| (2 (2)) |}]
;;
let%expect_test "path" =
let component =
let%sub () = opaque_const () in
let%sub path = Bonsai.Private.path in
return (Value.map path ~f:Bonsai.Private.Path.sexp_of_t)
in
let handle = Handle.create (Result_spec.sexp (module Sexp)) component in
Handle.show handle;
[%expect {| (Subst_from Subst_into Subst_into Subst_from) |}]
;;
let%expect_test "assoc and enum path" =
let component =
Bonsai.assoc
(module Int)
(opaque_const_value (Int.Map.of_alist_exn [ -1, (); 1, () ]))
~f:(fun i _ ->
if%sub i >>| ( > ) 0 then Bonsai.Private.path else Bonsai.Private.path)
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = Bonsai.Private.Path.t Int.Map.t [@@deriving sexp_of]
end))
component
in
Handle.show handle;
[%expect
{|
((-1 (Subst_from (Assoc -1) Subst_into (Switch 0)))
(1 (Subst_from (Assoc 1) Subst_into (Switch 1)))) |}]
;;
let%expect_test "constant folded assoc path" =
let component =
Bonsai.assoc
(module Int)
(Value.return (Int.Map.of_alist_exn [ -1, (); 1, () ]))
~f:(fun _ _ ->
let%sub x, _ = Bonsai.state (module Int) ~default_model:0 in
let%sub path = Bonsai.Private.path in
let%sub path, _ =
let%arr path = path
and x = x in
path, x
in
Bonsai.read path)
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = Bonsai.Private.Path.t Int.Map.t [@@deriving sexp_of]
end))
component
in
Handle.show handle;
[%expect
{|
((-1
(Subst_from Subst_from Subst_from Subst_from Subst_into Subst_into
Subst_from))
(1
(Subst_from Subst_from Subst_into Subst_from Subst_from Subst_into
Subst_into Subst_from))) |}]
;;
let%expect_test "constant folded assoc lifecycles are unchanged" =
let runtest input =
let component =
let%sub _ =
Bonsai.assoc
(module Int)
(input (Int.Map.of_alist_exn [ -1, (); 1, () ]))
~f:(fun key _ ->
Bonsai.Edge.lifecycle
~on_activate:
(let%map key = key in
Effect.print_s [%message (key : int)])
())
in
Bonsai.const ()
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.show handle
in
runtest opaque_const_value;
let unoptimized = Expect_test_helpers_base.expect_test_output [%here] in
runtest Value.return;
let optimized = Expect_test_helpers_base.expect_test_output [%here] in
print_endline (Expect_test_patdiff.patdiff ~context:0 unoptimized optimized)
;;
let%expect_test "constant map + simplifiable assoc ~f => constant map proper evaluation" =
let component =
Bonsai.assoc
(module String)
(Value.return (String.Map.of_alist_exn [ "hello", 0; "world", 5 ]))
~f:(fun _ v ->
let%arr v = v in
v + 100)
in
let module Model = struct
type t = int String.Map.t [@@deriving sexp, equal]
end
in
let handle = Handle.create (Result_spec.sexp (module Model)) component in
Handle.show handle;
[%expect {| ((hello 100) (world 105)) |}]
;;
let%expect_test "assoc_on" =
let var = Bonsai.Var.create (Int.Map.of_alist_exn [ 0, (); 1, (); 2, () ]) in
let component =
Bonsai.Expert.assoc_on
(module Int)
(module Int)
(Bonsai.Var.value var)
~get_model_key:(fun key _data -> key % 2)
~f:(fun _key _data ->
Bonsai.state_machine1
(module Int)
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ input model new_model ->
match input with
| Active () -> new_model
| Inactive ->
print_endline "inactive";
model)
(opaque_const_value ()))
in
let handle =
Handle.create
(module struct
type t = (int * (int -> unit Effect.t)) Int.Map.t
type incoming = Nothing.t
let incoming _ = Nothing.unreachable_code
let view (map : t) =
map
|> Map.to_alist
|> List.map ~f:(fun (i, (s, _)) -> i, s)
|> [%sexp_of: (int * int) list]
|> Sexp.to_string_hum
;;
end)
component
in
Handle.show handle;
[%expect {| ((0 0) (1 0) (2 0)) |}];
let result = Handle.result handle in
let set_two what =
let _, set = Map.find_exn result 2 in
Ui_effect.Expert.handle (set what)
in
set_two 3;
Handle.show handle;
[%expect {| ((0 3) (1 0) (2 3)) |}];
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, () ]);
Handle.show handle;
[%expect {| ((1 0)) |}];
set_two 4;
Handle.show handle;
[%expect {|
inactive
((1 0)) |}];
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, (); 2, () ]);
Handle.show handle;
[%expect {| ((1 0) (2 3)) |}]
;;
let%expect_test "simplify assoc_on" =
let var = Bonsai.Var.create (Int.Map.of_alist_exn [ 0, (); 1, (); 2, () ]) in
let component =
Bonsai.Expert.assoc_on
(module Int)
(module Int)
(Bonsai.Var.value var)
~get_model_key:(fun key _data -> key % 2)
~f:(fun _key data -> return data)
in
component
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.pre_process
|> sexp_of_packed_computation
|> print_s;
[%expect {| (Assoc_simpl (map Incr)) |}]
;;
let%expect_test "simple-assoc works with paths" =
let component =
Bonsai.assoc
(module String)
(opaque_const_value (String.Map.of_alist_exn [ "hello", (); "world", () ]))
~f:(fun _ _ ->
let%sub a = Bonsai.Private.path in
let%sub b = Bonsai.Private.path in
return (Bonsai.Value.both a b))
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = (Bonsai.Private.Path.t * Bonsai.Private.Path.t) String.Map.t
[@@deriving sexp_of]
end))
component
in
Handle.show handle;
[%expect
{|
((hello
((Subst_from (Assoc hello) Subst_from)
(Subst_from (Assoc hello) Subst_into Subst_from)))
(world
((Subst_from (Assoc world) Subst_from)
(Subst_from (Assoc world) Subst_into Subst_from)))) |}];
component
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.pre_process
|> sexp_of_packed_computation
|> print_s;
[%expect {|
(Assoc_simpl (map Incr)) |}]
;;
let test_assoc_simpl_on_cutoff ~added_by_let_syntax =
let cutoff value ~equal =
Bonsai.Private.reveal_value value
|> Bonsai.Private.Value.cutoff ~added_by_let_syntax ~equal
|> Bonsai.Private.conceal_value
in
let component =
Bonsai.assoc
(module String)
(opaque_const_value (String.Map.of_alist_exn [ "capy", (); "bara", () ]))
~f:(fun _ data -> return (cutoff ~equal:(fun _ _ -> true) data))
in
print_s
Bonsai.Private.(
sexp_of_packed_computation
(Bonsai.Private.Pre_process.pre_process (reveal_computation component)))
;;
let%expect_test "assoc simplification behavior on cutoffs" =
test_assoc_simpl_on_cutoff ~added_by_let_syntax:true;
[%expect {|
(Assoc_simpl (map Incr)) |}];
test_assoc_simpl_on_cutoff ~added_by_let_syntax:false;
[%expect
{|
(Assoc
(map Incr)
(key_id 1)
(cmp_id 2)
(data_id 3)
(by (
Return (value (Cutoff (t (Named (uid 3))) (added_by_let_syntax false)))))) |}]
;;
let%expect_test "assoc_list unique" =
let run input =
let component =
Bonsai.assoc_list
(module Int)
(opaque_const_value input)
~get_key:fst
~f:(fun _ kv_pair ->
let%sub _, value = return kv_pair in
return value)
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t =
[ `Ok of string list
| `Duplicate_key of int
]
[@@deriving sexp_of]
end))
component
in
Handle.show handle
in
run [ 2, "a"; 1, "b"; 3, "c"; 1, "d" ];
[%expect {| (Duplicate_key 1) |}];
run [ 2, "a"; 1, "c"; 3, "b" ];
[%expect {| (Ok (a c b)) |}]
;;
let%expect_test "chain" =
let add_one = Bonsai.pure (fun x -> x + 1) in
let double = Bonsai.pure (fun x -> x * 2) in
let component input =
let%sub a = add_one input in
let%sub b = double a in
return b
in
let var = Bonsai.Var.create 1 in
let handle =
Handle.create (Result_spec.sexp (module Int)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {| 4 |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| 6 |}]
;;
let%expect_test "chain + both" =
let add_one = Bonsai.pure (fun x -> x + 1) in
let double = Bonsai.pure (fun x -> x * 2) in
let add = Bonsai.pure (fun (x, y) -> x + y) in
let component input =
let%sub a = add_one input in
let%sub b = double a in
let%sub c = add (Value.both a b) in
return c
in
let var = Bonsai.Var.create 1 in
let handle =
Handle.create (Result_spec.sexp (module Int)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {| 6 |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| 9 |}]
;;
let%expect_test "wrap" =
let component =
Bonsai.wrap
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ (result, _) model () ->
String.length result + model)
~f:(fun model inject ->
return
@@
let%map model = model
and inject = inject in
Int.to_string model, inject)
in
let handle =
Handle.create
(module struct
type t = string * (unit -> unit Effect.t)
type incoming = unit
let view = Tuple2.get1
let incoming (_, x) () = x ()
end)
component
in
Handle.show handle;
[%expect {| 0 |}];
Handle.do_actions handle [ () ];
Handle.show handle;
[%expect {| 1 |}];
Handle.do_actions handle [ (); (); (); (); (); (); (); (); (); () ];
Handle.show handle;
[%expect {| 12 |}];
Handle.do_actions handle [ () ];
Handle.show handle;
[%expect {| 14 |}]
;;
let%expect_test "match%sub" =
let var : (string, int) Either.t Bonsai.Var.t =
Bonsai.Var.create (Either.First "hello")
in
let component =
match%sub Bonsai.Var.value var with
| First s -> Bonsai.read (Value.map s ~f:(sprintf "%s world"))
| Second i -> Bonsai.read (Value.map i ~f:Int.to_string)
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| hello world |}];
Bonsai.Var.set var (Second 2);
Handle.show handle;
[%expect {| 2 |}]
;;
let%expect_test "match%sub" =
let var : (string, int) Either.t Bonsai.Var.t =
Bonsai.Var.create (Either.First "hello")
in
let component =
match%sub Bonsai.Var.value var with
| First s -> Bonsai.read (Value.map s ~f:(sprintf "%s world"))
| Second i -> Bonsai.read (Value.map i ~f:Int.to_string)
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| hello world |}];
Bonsai.Var.set var (Second 2);
Handle.show handle;
[%expect {| 2 |}]
;;
type thing =
| Loading of string
| Search_results of int
let%expect_test "match%sub repro" =
let open Bonsai.Let_syntax in
let component current_page =
match%sub current_page with
| Loading x ->
Bonsai.read
(let%map x = x in
"loading " ^ x)
| Search_results s ->
Bonsai.read
(let%map s = s in
sprintf "search results %d" s)
in
let var = Bonsai.Var.create (Loading "hello") in
let handle =
Handle.create (Result_spec.string (module String)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {| loading hello |}];
Bonsai.Var.set var (Search_results 5);
Handle.show handle;
[%expect {| search results 5 |}]
;;
let%expect_test "if%sub" =
let component input =
let a = Value.return "hello" in
let b = Value.return "world" in
if%sub input then Bonsai.read a else Bonsai.read b
in
let var = Bonsai.Var.create true in
let handle =
Handle.create (Result_spec.string (module String)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {| hello |}];
Bonsai.Var.set var false;
Handle.show handle;
[%expect {| world |}]
;;
let%expect_test "match%sub defers exceptions until runtime" =
let var = Bonsai.Var.create true in
let component =
match%sub Bonsai.Var.value var with
| true -> Bonsai.const "yay!"
| false -> assert false
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| yay! |}]
;;
let%expect_test "let%sub patterns" =
let component =
let%sub a, _b = Bonsai.const ("hello world", 5) in
return a
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| hello world |}]
;;
let%expect_test "sub constant folding optimization" =
let component =
let%sub a = Bonsai.const 5 in
let%sub b = Bonsai.const 6 in
return
(let%map a = a
and b = b in
a + b)
in
print_s Bonsai.Private.(sexp_of_packed_computation (reveal_computation component));
[%expect
{|
(Sub
(from (Return (value (Constant (id 0)))))
(via 1)
(into (
Sub
(from (Return (value (Constant (id 2)))))
(via 3)
(into (
Return (
value (
Mapn (
inputs ((
Mapn (
inputs (
(Named (uid 1))
(Named (uid 3)))))))))))))) |}];
let component =
component
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.Constant_fold.constant_fold
|> Bonsai.Private.conceal_computation
in
print_s Bonsai.Private.(sexp_of_packed_computation (reveal_computation component));
[%expect {| (Return (value (Constant (id 0)))) |}];
let component =
component |> Bonsai.Private.reveal_computation |> Bonsai.Private.conceal_computation
in
print_s Bonsai.Private.(sexp_of_packed_computation (reveal_computation component));
[%expect {| (Return (value (Constant (id 0)))) |}]
;;
let%expect_test "let%map constant folding optimization" =
let component =
let%sub a =
let%arr a = Bonsai.Value.return 5 in
a + 1
in
let%sub b = Bonsai.const 6 in
return
(let%map a = a
and b = b in
a + b)
in
print_s Bonsai.Private.(sexp_of_packed_computation (reveal_computation component));
[%expect
{|
(Sub
(from (Return (value (Mapn (inputs ((Constant (id 0))))))))
(via 2)
(into (
Sub
(from (Return (value (Constant (id 3)))))
(via 4)
(into (
Return (
value (
Mapn (
inputs ((
Mapn (
inputs (
(Named (uid 2))
(Named (uid 4)))))))))))))) |}];
let component =
component
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.Constant_fold.constant_fold
|> Bonsai.Private.conceal_computation
in
print_s Bonsai.Private.(sexp_of_packed_computation (reveal_computation component));
[%expect {| (Return (value (Constant (id 0)))) |}];
let component =
component |> Bonsai.Private.reveal_computation |> Bonsai.Private.conceal_computation
in
print_s Bonsai.Private.(sexp_of_packed_computation (reveal_computation component));
[%expect {| (Return (value (Constant (id 0)))) |}]
;;
let%expect_test "assoc simplifies its inner computation, if possible" =
let value = opaque_const_value String.Map.empty in
let component =
Bonsai.assoc
(module String)
value
~f:(fun key data -> Bonsai.read (Value.both key data))
in
print_s
Bonsai.Private.(
sexp_of_packed_computation (pre_process (reveal_computation component)));
[%expect {|
(Assoc_simpl (map Incr)) |}]
;;
let%expect_test "assoc with sub simplifies its inner computation, if possible" =
let value = opaque_const_value String.Map.empty in
let component =
Bonsai.assoc
(module String)
value
~f:(fun key data ->
let%sub key = Bonsai.read key in
Bonsai.read (Bonsai.Value.both key data))
in
print_s
Bonsai.Private.(
sexp_of_packed_computation (pre_process (reveal_computation component)));
[%expect {|
(Assoc_simpl (map Incr)) |}]
;;
let%expect_test "assoc with sub simplifies its inner computation, if possible" =
let value = opaque_const_value String.Map.empty in
let component =
Bonsai.assoc
(module String)
value
~f:(fun key data ->
let%sub key = Bonsai.read key in
Bonsai.read (Bonsai.Value.both key data))
in
print_s
Bonsai.Private.(
sexp_of_packed_computation (pre_process (reveal_computation component)));
[%expect {|
(Assoc_simpl (map Incr)) |}]
;;
let%expect_test "map > lazy" =
let open Bonsai.Let_syntax in
let module M = struct
type t =
{ label : string
; children : t Int.Map.t
}
end
in
let rec f ~t ~depth =
let%sub { M.label; children } = return t in
let%sub children =
Bonsai.assoc
(module Int)
children
~f:(fun _ v ->
let depth =
let%map depth = depth in
depth + 1
in
Bonsai.lazy_ (lazy (f ~t:v ~depth)))
in
return
@@
let%map label = label
and children = children
and depth = depth in
[%message label (depth : int) (children : Sexp.t Int.Map.t)]
in
let t_var = Bonsai.Var.create { M.label = "hi"; children = Int.Map.empty } in
let t_value = Bonsai.Var.value t_var in
let handle =
Handle.create
(Result_spec.sexp (module Sexp))
(f ~t:t_value ~depth:(Bonsai.Value.return 0))
in
[%expect {| |}];
Handle.show handle;
[%expect {| (hi (depth 0) (children ())) |}];
Bonsai.Var.set
t_var
{ M.label = "hi"
; children = Int.Map.singleton 0 { M.label = "hello"; children = Int.Map.empty }
};
Handle.show handle;
[%expect {| (hi (depth 0) (children ((0 (hello (depth 1) (children ())))))) |}]
;;
let%expect_test "dynamic action sent to non-existent assoc element" =
let var = Bonsai.Var.create (Int.Map.of_alist_exn [ 1, (); 2, () ]) in
let component =
Bonsai.assoc
(module Int)
(Bonsai.Var.value var)
~f:(fun _key _data ->
Bonsai.state_machine1
(module Int)
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ input model new_model ->
match input with
| Active () -> new_model
| Inactive ->
print_endline "inactive";
model)
(opaque_const_value ()))
in
let handle =
Handle.create
(module struct
type t = (int * (int -> unit Effect.t)) Int.Map.t
type incoming = Nothing.t
let incoming _ = Nothing.unreachable_code
let view (map : t) =
map
|> Map.to_alist
|> List.map ~f:(fun (i, (s, _)) -> i, s)
|> [%sexp_of: (int * int) list]
|> Sexp.to_string_hum
;;
end)
component
in
Handle.show handle;
[%expect {| ((1 0) (2 0)) |}];
let result = Handle.result handle in
let set_two what =
let _, set = Map.find_exn result 2 in
Ui_effect.Expert.handle (set what)
in
set_two 3;
Handle.show handle;
[%expect {| ((1 0) (2 3)) |}];
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, () ]);
Handle.show handle;
[%expect {| ((1 0)) |}];
set_two 4;
Handle.show handle;
[%expect {|
inactive
((1 0)) |}];
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, (); 2, () ]);
Handle.show handle;
[%expect {| ((1 0) (2 3)) |}]
;;
let%expect_test "ping-pong between apply-static and dynamic" =
let component =
let%sub m, i, _ =
Bonsai.Expert.state_machine01
(module Int)
(module Unit)
(module Unit)
~default_model:9
~apply_dynamic:
(fun
~inject_dynamic:_ ~inject_static ~schedule_event () model () ->
if model <= 0
then model
else (
printf "%d: Ping!\n" model;
schedule_event (inject_static ());
model - 1))
~apply_static:(fun ~inject_dynamic ~inject_static:_ ~schedule_event model () ->
printf "%d: Pong!\n" model;
schedule_event (inject_dynamic ());
model - 1)
(Value.return ())
in
let%arr m = m
and i = i in
m, i
in
let handle =
Handle.create
(module struct
type t = int * (unit -> unit Effect.t)
type incoming = unit
let incoming (_, i) = i
let view (x, _) = Int.to_string x
end)
component
in
Handle.do_actions handle [ () ];
Handle.flush handle;
[%expect
{|
9: Ping!
8: Pong!
7: Ping!
6: Pong!
5: Ping!
4: Pong!
3: Ping!
2: Pong!
1: Ping!
0: Pong! |}]
;;
let%test_module "inactive delivery" =
(module struct
let rec censor_sexp = function
| Sexp.List l ->
(match List.filter_map l ~f:censor_sexp with
| [] -> None
| [ x ] -> Some x
| all -> Some (Sexp.List all))
| Sexp.Atom s ->
if String.is_prefix s ~prefix:"lib/bonsai" then None else Some (Atom s)
;;
let print_computation computation =
computation (Bonsai.Value.return ())
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.pre_process
|> sexp_of_packed_computation
|> censor_sexp
|> Option.value ~default:(Sexp.List [])
|> print_s
;;
let test_delivery_to_inactive_component computation =
let run_test which_assoc =
let var = Bonsai.Var.create (Int.Map.of_alist_exn [ 1, (); 2, () ]) in
let component =
match which_assoc with
| `Assoc ->
let%sub i = Bonsai.const () in
Bonsai.assoc
(module Int)
(Bonsai.Var.value var)
~f:(fun _key _data -> computation i)
| `Assoc_on ->
let%sub i = Bonsai.const () in
Bonsai.Expert.assoc_on
(module Int)
(module String)
(Bonsai.Var.value var)
~get_model_key:(fun key _data -> Int.to_string key)
~f:(fun _key _data -> computation i)
in
let handle =
Handle.create
(module struct
type t = (int * (int -> unit Effect.t)) Int.Map.t
type incoming = Nothing.t
let incoming _ = Nothing.unreachable_code
let view (map : t) =
map
|> Map.to_alist
|> List.map ~f:(fun (i, (s, _)) -> i, s)
|> [%sexp_of: (int * int) list]
|> Sexp.to_string_hum
;;
end)
component
in
Handle.show handle;
let result = Handle.result handle in
let set_two what =
let _, set = Map.find_exn result 2 in
Ui_effect.Expert.handle (set what)
in
set_two 3;
Handle.show handle;
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, () ]);
Handle.show handle;
set_two 4;
Handle.show handle;
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, (); 2, () ]);
Handle.show handle;
Expect_test_helpers_base.expect_test_output [%here]
in
let assoc = run_test `Assoc in
let assoc_on = run_test `Assoc_on in
print_computation computation;
print_endline assoc;
print_endline "==== Diff between assoc and assoc_on: ====";
print_endline (Expect_test_patdiff.patdiff ~context:0 assoc assoc_on)
;;
let%expect_test "state_machine1 inactive-delivery" =
(fun _ ->
Bonsai.state_machine1
(module Int)
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ input _model new_model ->
(match input with
| Inactive -> print_endline "static action"
| Active () -> print_endline "dynamic action");
new_model)
(Value.return ()))
|> test_delivery_to_inactive_component;
[%expect
{|
Leaf0
((1 0) (2 0))
dynamic action
((1 0) (2 3))
((1 0))
dynamic action
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "race inactive-delivery (but an active input)" =
(fun input ->
Bonsai.state_machine1
(module Int)
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ input _model new_model ->
(match input with
| Inactive -> print_endline "static action"
| Active () -> print_endline "dynamic action");
new_model)
input)
|> test_delivery_to_inactive_component;
[%expect
{|
Leaf0
((1 0) (2 0))
dynamic action
((1 0) (2 3))
((1 0))
dynamic action
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "dynamic action inactive-delivery" =
(fun _ ->
Bonsai.state_machine1
(module Int)
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ input model new_model ->
match input with
| Active () -> new_model
| Inactive ->
print_endline "inactive";
model)
(opaque_const_value ()))
|> test_delivery_to_inactive_component;
[%expect
{|
(Leaf1 (input Incr))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
inactive
((1 0))
((1 0) (2 3))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "actor1 inactive-delivery" =
(fun _ ->
Bonsai.actor1
(module Int)
(module Int)
~default_model:0
~recv:(fun ~schedule_event:_ input model new_model ->
match input with
| Active () -> new_model, ()
| Inactive ->
print_endline
"action sent to actor1 has been received while the input was inactive.";
model, ())
(opaque_const_value ()))
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from (Leaf1 (input Incr)))
(via 4)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 4)))))))
(via 6)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 4)))))))
(via 8)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 8)))))))
(via 10)
(into (
Return (
value (
Mapn (
inputs (
(Named (uid 6))
(Named (uid 10)))))))))))))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
action sent to actor1 has been received while the input was inactive.
((1 0))
((1 0) (2 3))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "actor0 inactive-delivery" =
(fun _ ->
Bonsai.actor0
(module Int)
(module Int)
~default_model:0
~recv:(fun ~schedule_event:_ _model new_model -> new_model, ()))
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from Leaf0)
(via 0)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 0)))))))
(via 2)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 0)))))))
(via 4)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 4)))))))
(via 6)
(into (
Return (
value (
Mapn (
inputs (
(Named (uid 2))
(Named (uid 6)))))))))))))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "actor1 with constant input downgrades to actor0" =
(fun _ ->
Bonsai.actor1
(module Int)
(module Int)
~default_model:0
~recv:(fun ~schedule_event:_ input model new_model ->
match input with
| Active () -> new_model, ()
| Inactive ->
print_endline
"action sent to actor1 has been received while the input was inactive.";
model, ())
(Value.return ()))
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from Leaf0)
(via 0)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 0)))))))
(via 2)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 0)))))))
(via 4)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 4)))))))
(via 6)
(into (
Return (
value (
Mapn (
inputs (
(Named (uid 2))
(Named (uid 6)))))))))))))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "dynamic action stat_machine01 inactive-delivery" =
(fun _ ->
let%sub m, i, _ =
Bonsai.Expert.state_machine01
(module Int)
(module Int)
(module Nothing)
~default_model:0
~apply_dynamic:
(fun
~inject_dynamic:_
~inject_static:_
~schedule_event:_
()
_model
new_model
-> new_model)
~apply_static:
(fun
~inject_dynamic:_ ~inject_static:_ ~schedule_event:_ _model ->
Nothing.unreachable_code)
(Value.return ())
in
let%arr m = m
and i = i in
m, i)
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from (Leaf01 (input (Constant (id 0)))))
(via 5)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 5)))))))
(via 7)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 5)))))))
(via 9)
(into (
Return (
value (
Mapn (
inputs (
(Named (uid 7))
(Named (uid 9)))))))))))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
("An action sent to a [state_machine01] has been dropped because its input was not present. This happens when the [state_machine01] is inactive when it receives a message."
(action 4))
((1 0))
((1 0) (2 3))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "static action stat_machine01 inactive-delivery" =
(fun _ ->
let%sub m, _, i =
Bonsai.Expert.state_machine01
(module Int)
(module Nothing)
(module Int)
~default_model:0
~apply_dynamic:
(fun
~inject_dynamic:_ ~inject_static:_ ~schedule_event:_ () _model ->
Nothing.unreachable_code)
~apply_static:
(fun
~inject_dynamic:_ ~inject_static:_ ~schedule_event:_ _model new_model ->
new_model)
(Value.return ())
in
let%arr m = m
and i = i in
m, i)
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from (Leaf01 (input (Constant (id 0)))))
(via 5)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 5)))))))
(via 7)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 5)))))))
(via 9)
(into (
Return (
value (
Mapn (
inputs (
(Named (uid 7))
(Named (uid 9)))))))))))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "static action inactive-delivery" =
(fun _ -> Bonsai.state (module Int) ~default_model:0)
|> test_delivery_to_inactive_component;
[%expect
{|
Leaf0
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "static inside of a lazy" =
(fun _ ->
opaque_computation
(Bonsai.lazy_ (lazy (Bonsai.state (module Int) ~default_model:0))))
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from (Return (value Incr)))
(via 1)
(into (
Switch
(match_ (Mapn (inputs (Named (uid 1)))))
(arms ((Lazy t) (Return (value Exception)))))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "static inside of a lazy (optimized away)" =
(fun _ -> Bonsai.lazy_ (lazy (Bonsai.state (module Int) ~default_model:0)))
|> test_delivery_to_inactive_component;
[%expect
{|
Leaf0
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "static inside of a wrap" =
(fun _ ->
Bonsai.wrap
(module Unit)
~default_model:()
~apply_action:(fun ~inject:_ ~schedule_event:_ _ () () -> ())
~f:(fun _model _inject -> Bonsai.state (module Int) ~default_model:0))
|> test_delivery_to_inactive_component;
[%expect
{|
(Wrap
(model_id 4)
(inject_id 0)
(inner Leaf0))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "static inside of a match%sub" =
(fun _ ->
match%sub opaque_const_value () with
| () -> Bonsai.state (module Int) ~default_model:0)
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from (Return (value Incr)))
(via 1)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 1)))))))
(via 3)
(into Leaf0))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "static inside of a with_model_resetter" =
(fun _ ->
let%sub r, _reset =
Bonsai.with_model_resetter (Bonsai.state (module Int) ~default_model:0)
in
return r)
|> test_delivery_to_inactive_component;
[%expect
{|
(Sub
(from (
With_model_resetter
(inner (
Sub
(from Leaf0)
(via 1)
(into (
Return (
value (
Mapn (
inputs (
(Named (uid 1))
(Named (uid 0))))))))))
(reset_id 0)))
(via 3)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 3)))))))
(via 5)
(into (
Sub
(from (Return (value (Mapn (inputs (Named (uid 3)))))))
(via 7)
(into (Return (value (Named (uid 5))))))))))
((1 0) (2 0))
((1 0) (2 3))
((1 0))
((1 0))
((1 0) (2 4))
==== Diff between assoc and assoc_on: ==== |}]
;;
let%expect_test "resetting while inactive" =
let which_branch = Bonsai.Var.create true in
let component =
if%sub Bonsai.Var.value which_branch
then Bonsai.with_model_resetter (Bonsai.state (module Int) ~default_model:0)
else Bonsai.const ((-1, fun _ -> Effect.Ignore), Effect.Ignore)
in
let handle =
Handle.create
(module struct
type t = (int * (int -> unit Effect.t)) * unit Effect.t
type incoming = Nothing.t
let incoming _ = Nothing.unreachable_code
let view ((i, _), _) = Int.to_string i
end)
component
in
Handle.show handle;
let (_, set_value), reset = Handle.result handle in
let set_value i = Ui_effect.Expert.handle (set_value i) in
let reset () = Ui_effect.Expert.handle reset in
set_value 3;
Handle.show handle;
Bonsai.Var.set which_branch false;
Handle.show handle;
set_value 4;
Handle.show handle;
Bonsai.Var.set which_branch true;
Handle.show handle;
[%expect {|
0
3
-1
-1
4 |}];
Bonsai.Var.set which_branch false;
Handle.show handle;
[%expect {| -1 |}];
reset ();
Bonsai.Var.set which_branch true;
Handle.show handle;
[%expect {| 0 |}]
;;
let%expect_test "resetting while inactive via the reset passed in" =
let which_branch = Bonsai.Var.create true in
let component =
if%sub Bonsai.Var.value which_branch
then
Bonsai.with_model_resetter' (fun ~reset ->
Bonsai.Computation.both
(Bonsai.state (module Int) ~default_model:0)
(return reset))
else Bonsai.const ((-1, fun _ -> Effect.Ignore), Effect.Ignore)
in
let handle =
Handle.create
(module struct
type t = (int * (int -> unit Effect.t)) * unit Effect.t
type incoming = Nothing.t
let incoming _ = Nothing.unreachable_code
let view ((i, _), _) = Int.to_string i
end)
component
in
Handle.show handle;
let (_, set_value), reset = Handle.result handle in
let set_value i = Ui_effect.Expert.handle (set_value i) in
let reset () = Ui_effect.Expert.handle reset in
set_value 3;
Handle.show handle;
Bonsai.Var.set which_branch false;
Handle.show handle;
set_value 4;
Handle.show handle;
Bonsai.Var.set which_branch true;
Handle.show handle;
[%expect {|
0
3
-1
-1
4 |}];
Bonsai.Var.set which_branch false;
Handle.show handle;
[%expect {| -1 |}];
reset ();
Bonsai.Var.set which_branch true;
Handle.show handle;
[%expect {| 0 |}]
;;
let%test_module "component reset" =
(module struct
type 'a action =
| Action of 'a
| Reset
let build_handle (type result incoming) component ~sexp_of =
Handle.create
(module struct
type t = (result * (incoming -> unit Effect.t)) * unit Effect.t
type nonrec incoming = incoming action
let incoming ((_result, do_action), reset) = function
| Action action -> do_action action
| Reset -> reset
;;
let view ((result, _), _) = sexp_of result |> Sexp.to_string_hum
end)
(Bonsai.with_model_resetter component)
;;
let%expect_test "custom reset" =
let component =
Bonsai.state (module Int) ~default_model:0 ~reset:(fun m -> m * 2)
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let set_value i = Handle.do_actions handle [ Action i ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
set_value 3;
Handle.show handle;
[%expect {| 3 |}];
set_value 4;
Handle.show handle;
[%expect {| 4 |}];
reset ();
Handle.show handle;
[%expect {| 8 |}];
set_value 1;
reset ();
Handle.show handle;
[%expect {| 2 |}];
set_value 1;
reset ();
set_value 10;
Handle.show handle;
[%expect {| 10 |}]
;;
let%expect_test "reset by bouncing back to an action (state_machine0)" =
let component =
Bonsai.state_machine0
(module Int)
(module Bool)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ model is_increment ->
if is_increment then model + 1 else 999)
~reset:(fun ~inject ~schedule_event model ->
schedule_event (inject false);
model)
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let increment () = Handle.do_actions handle [ Action true ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
increment ();
increment ();
Handle.show handle;
[%expect {| 2 |}];
increment ();
Handle.show handle;
[%expect {| 3 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "reset by bouncing back to an action (state_machine1)" =
let component =
Bonsai.state_machine1
(module Int)
(module Bool)
(opaque_const_value ())
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ input model is_increment ->
match input with
| Active () -> if is_increment then model + 1 else 999
| Inactive ->
print_endline "inactive";
model)
~reset:(fun ~inject ~schedule_event model ->
schedule_event (inject false);
model)
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let increment () = Handle.do_actions handle [ Action true ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
increment ();
Handle.show handle;
[%expect {| 1 |}];
increment ();
Handle.show handle;
[%expect {| 2 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "inside match%sub" =
let component =
match%sub opaque_const_value true with
| true -> Bonsai.state (module Int) ~default_model:0 ~reset:(fun _ -> 999)
| false -> assert false
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let set_value i = Handle.do_actions handle [ Action i ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
set_value 3;
Handle.show handle;
[%expect {| 3 |}];
set_value 4;
Handle.show handle;
[%expect {| 4 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "inside forced lazy" =
let component =
match%sub opaque_const_value true with
| true ->
Bonsai.lazy_
(lazy (Bonsai.state (module Int) ~default_model:0 ~reset:(fun _ -> 999)))
| false -> assert false
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let set_value i = Handle.do_actions handle [ Action i ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
set_value 3;
Handle.show handle;
[%expect {| 3 |}];
set_value 4;
Handle.show handle;
[%expect {| 4 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "next to an inactive infinitely-recursive lazy" =
let rec infinitely_recursive_component () =
Bonsai.lazy_ (lazy (infinitely_recursive_component ()))
in
let component =
match%sub opaque_const_value true with
| true -> Bonsai.state (module Int) ~default_model:0 ~reset:(fun _ -> 999)
| false -> infinitely_recursive_component ()
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let set_value i = Handle.do_actions handle [ Action i ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
set_value 3;
Handle.show handle;
[%expect {| 3 |}];
set_value 4;
Handle.show handle;
[%expect {| 4 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "inside assoc" =
let component =
let%sub map =
Bonsai.assoc
(module Int)
(opaque_const_value (Int.Map.of_alist_exn [ 0, (); 1, () ]))
~f:(fun _ _ ->
Bonsai.state
(module Int)
~default_model:0
~reset:(fun _ ->
print_endline "resetting";
999))
in
let%arr map = map in
let res = Map.to_alist map |> List.map ~f:(fun (k, (v, _)) -> k, v) in
let setter (i, v) = (Map.find_exn map i |> Tuple2.get2) v in
res, setter
in
let handle = build_handle component ~sexp_of:[%sexp_of: (int * int) list] in
Handle.show handle;
[%expect {| ((0 0) (1 0)) |}];
let set_value i v = Handle.do_actions handle [ Action (i, v) ] in
let reset () = Handle.do_actions handle [ Reset ] in
set_value 0 3;
Handle.show handle;
[%expect {| ((0 3) (1 0)) |}];
set_value 1 5;
Handle.show handle;
[%expect {| ((0 3) (1 5)) |}];
reset ();
Handle.show handle;
[%expect
{|
resetting
resetting
((0 999) (1 999)) |}]
;;
let%expect_test "reset by bouncing back to an action (race)" =
let component =
let%sub model, inject =
Bonsai.state_machine1
(module Int)
(module Bool)
(opaque_const_value ())
~default_model:0
~apply_action:
(fun
~inject:_
~schedule_event:_
(_ : unit Bonsai.Computation_status.t)
model
is_increment
-> if is_increment then model + 1 else 999)
~reset:(fun ~inject ~schedule_event model ->
schedule_event (inject false);
model)
in
return (Value.both model inject)
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let increment () = Handle.do_actions handle [ Action true ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
increment ();
Handle.show handle;
[%expect {| 1 |}];
increment ();
Handle.show handle;
[%expect {| 2 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "reset by bouncing back to an action (state_machine01 static)" =
let component =
let%sub model, _, inject =
Bonsai.Expert.state_machine01
(module Int)
(module Unit)
(module Bool)
(opaque_const_value ())
~default_model:0
~apply_static:
(fun
~inject_dynamic:_
~inject_static:_
~schedule_event:_
model
is_increment
-> if is_increment then model + 1 else 999)
~apply_dynamic:
(fun
~inject_dynamic:_ ~inject_static:_ ~schedule_event:_ () _ ->
assert false)
~reset:(fun ~inject_dynamic:_ ~inject_static ~schedule_event model ->
schedule_event (inject_static false);
model)
in
return (Value.both model inject)
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let increment () = Handle.do_actions handle [ Action true ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
increment ();
Handle.show handle;
[%expect {| 1 |}];
increment ();
Handle.show handle;
[%expect {| 2 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "reset by bouncing back to an action (state_machine01 dynamic)" =
let component =
let%sub model, inject, _ =
Bonsai.Expert.state_machine01
(module Int)
(module Bool)
(module Unit)
(opaque_const_value ())
~default_model:0
~apply_dynamic:
(fun
~inject_dynamic:_
~inject_static:_
~schedule_event:_
()
model
is_increment
-> if is_increment then model + 1 else 999)
~apply_static:
(fun
~inject_dynamic:_ ~inject_static:_ ~schedule_event:_ _ ->
assert false)
~reset:(fun ~inject_dynamic ~inject_static:_ ~schedule_event model ->
schedule_event (inject_dynamic false);
model)
in
return (Value.both model inject)
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let increment () = Handle.do_actions handle [ Action true ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
increment ();
Handle.show handle;
[%expect {| 1 |}];
increment ();
Handle.show handle;
[%expect {| 2 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "for wrap" =
let component =
Bonsai.wrap
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ _ model is_increment ->
if is_increment then model + 1 else 999)
~reset:(fun ~inject ~schedule_event model ->
schedule_event (inject false);
model)
~f:(fun model inject -> return (Value.both model inject))
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let increment () = Handle.do_actions handle [ Action true ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
increment ();
Handle.show handle;
[%expect {| 1 |}];
increment ();
Handle.show handle;
[%expect {| 2 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "inside a wrap" =
let component =
Bonsai.wrap
(module Unit)
~default_model:()
~apply_action:(fun ~inject:_ ~schedule_event:_ _ () () -> ())
~f:(fun _ _ ->
Bonsai.state_machine0
(module Int)
(module Bool)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ model is_increment ->
if is_increment then model + 1 else 999)
~reset:(fun ~inject ~schedule_event model ->
schedule_event (inject false);
model))
in
let handle = build_handle component ~sexp_of:[%sexp_of: int] in
let increment () = Handle.do_actions handle [ Action true ] in
let reset () = Handle.do_actions handle [ Reset ] in
Handle.show handle;
[%expect {| 0 |}];
increment ();
Handle.show handle;
[%expect {| 1 |}];
increment ();
Handle.show handle;
[%expect {| 2 |}];
reset ();
Handle.show handle;
[%expect {| 999 |}]
;;
let%expect_test "inside assoc_on" =
let component =
let%sub map =
Bonsai.Expert.assoc_on
(module Int)
(module Bool)
(opaque_const_value (Int.Map.of_alist_exn [ 0, true; 1, false; 2, true ]))
~get_model_key:(fun _ -> Fn.id)
~f:(fun _ _ ->
Bonsai.state
(module Int)
~default_model:0
~reset:(fun _ ->
print_endline "resetting";
999))
in
let%arr map = map in
let res = Map.to_alist map |> List.map ~f:(fun (k, (v, _)) -> k, v) in
let setter (i, v) = (Map.find_exn map i |> Tuple2.get2) v in
res, setter
in
let handle = build_handle component ~sexp_of:[%sexp_of: (int * int) list] in
Handle.show handle;
[%expect {| ((0 0) (1 0) (2 0)) |}];
let set_value i v = Handle.do_actions handle [ Action (i, v) ] in
let reset () = Handle.do_actions handle [ Reset ] in
set_value 0 3;
Handle.show handle;
[%expect {| ((0 3) (1 0) (2 3)) |}];
set_value 1 5;
Handle.show handle;
[%expect {| ((0 3) (1 5) (2 3)) |}];
reset ();
Handle.recompute_view handle;
[%expect {|
resetting
resetting |}];
Handle.show handle;
[%expect {| ((0 999) (1 999) (2 999)) |}]
;;
end)
;;
let%expect_test "inactive delivery to assoc_on with shared model keys" =
let var = Bonsai.Var.create (Int.Map.of_alist_exn [ 1, (); 2, () ]) in
let component =
Bonsai.Expert.assoc_on
(module Int)
(module Unit)
(Bonsai.Var.value var)
~get_model_key:(fun _key _data -> ())
~f:(fun _key _data ->
Bonsai.state_machine1
(module Int)
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event:_ input model new_model ->
match input with
| Active () -> new_model
| Inactive ->
print_endline "inactive";
model)
(opaque_const_value ()))
in
let handle =
Handle.create
(module struct
type t = (int * (int -> unit Effect.t)) Int.Map.t
type incoming = Nothing.t
let incoming _ = Nothing.unreachable_code
let view (map : t) =
map
|> Map.to_alist
|> List.map ~f:(fun (i, (s, _)) -> i, s)
|> [%sexp_of: (int * int) list]
|> Sexp.to_string_hum
;;
end)
component
in
print_computation (fun _ -> component);
Handle.show handle;
let result = Handle.result handle in
let set key to_what =
let _, set = Map.find_exn result key in
Ui_effect.Expert.handle (set to_what)
in
let set_one = set 1 in
let set_two = set 2 in
set_two 3;
Handle.show handle;
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, () ]);
Handle.show handle;
set_two 4;
Handle.show handle;
set_one 5;
Handle.show handle;
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, (); 2, () ]);
Handle.show handle;
[%expect
{|
(Assoc_on
(map Incr)
(io_key_id 1)
(model_key_id 3)
(model_cmp_id 4)
(data_id 5)
(by (Leaf1 (input Incr))))
((1 0) (2 0))
((1 3) (2 3))
((1 3))
inactive
((1 3))
((1 5))
((1 5) (2 5)) |}]
;;
end)
;;
let%test_module "testing Bonsai internals" =
(module struct
[@@@alert "-rampantly_nondeterministic"]
let%expect_test "remove unused models in assoc" =
let var = Bonsai.Var.create Int.Map.empty in
let module State_with_setter = struct
type t =
{ state : string
; set_state : string -> unit Effect.t
}
end
in
let module Action = struct
type t = Set of string
end
in
let component =
Bonsai.assoc
(module Int)
(Bonsai.Var.value var)
~f:(fun _key _data ->
let%sub v = Bonsai.state (module String) ~default_model:"hello" in
return
@@
let%map state, set_state = v in
{ State_with_setter.state; set_state })
in
let handle =
Handle.create
(module struct
type t = State_with_setter.t Int.Map.t
type incoming = int * Action.t
let incoming (map : t) (id, action) =
let t = Map.find_exn map id in
match (action : Action.t) with
| Set value -> t.set_state value
;;
let view (map : t) =
map
|> Map.to_alist
|> List.map ~f:(fun (i, { state; set_state = _ }) -> i, state)
|> [%sexp_of: (int * string) list]
|> Sexp.to_string_hum
;;
end)
component
in
Handle.show_model handle;
[%expect {|
() |}];
Bonsai.Var.set var (Int.Map.of_alist_exn [ 1, (); 2, () ]);
Handle.show_model handle;
[%expect {|
() |}];
Handle.do_actions handle [ 1, Set "test" ];
Handle.show_model handle;
[%expect {| ((1 test)) |}];
Handle.do_actions handle [ 1, Set "hello" ];
Handle.show_model handle;
[%expect {|
() |}]
;;
end)
;;
let%expect_test "multiple maps respect cutoff" =
let component input =
input
|> Value.map ~f:(fun (_ : int) -> ())
|> Value.map ~f:(fun () -> print_endline "triggered")
|> return
in
let var = Bonsai.Var.create 1 in
let handle =
Handle.create (Result_spec.sexp (module Unit)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {|
triggered
() |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| () |}]
;;
let%expect_test "let syntax is collapsed upon eval" =
let computation =
let%arr () = opaque_const_value ()
and () = opaque_const_value ()
and () = opaque_const_value ()
and () = opaque_const_value ()
and () = opaque_const_value ()
and () = opaque_const_value ()
and () = opaque_const_value () in
()
in
let packed =
let open Bonsai.Private in
let computation = reveal_computation computation in
let (T
{ model
; input = _
; apply_static = _
; apply_dynamic = _
; static_action
; dynamic_action
; run
; reset = _
})
=
computation |> pre_process |> gather
in
let T =
Bonsai.Private.Meta.Action.Type_id.same_witness_exn
Meta.Action.nothing
static_action
in
let T =
Bonsai.Private.Meta.Action.Type_id.same_witness_exn
Meta.Action.nothing
dynamic_action
in
let snapshot =
run
~environment:Environment.empty
~path:Path.empty
~clock:Ui_incr.clock
~inject_dynamic:Nothing.unreachable_code
~inject_static:Nothing.unreachable_code
~model:(Ui_incr.return model.default)
in
Snapshot.result snapshot |> Ui_incr.pack
in
let filename = Stdlib.Filename.temp_file "incr" "out" in
Ui_incr.Packed.save_dot_to_file filename [ packed ];
let dot_contents = In_channel.read_all filename in
require
[%here]
~if_false_then_print_s:(lazy [%message "No Map7 node found"])
(String.is_substring dot_contents ~substring:"Map7")
;;
let%test_unit "constant prop doesn't happen" =
let (_ : int Computation.t) =
match%sub Value.return (First 1) with
| First x -> Bonsai.read x
| Second x -> Bonsai.read x
in
()
;;
let%expect_test "ignored result of assoc" =
let var = Bonsai.Var.create (Int.Map.of_alist_exn [ 1, (); 2, () ]) in
let component =
let%sub _ =
Bonsai.assoc
(module Int)
(Bonsai.Var.value var)
~f:(fun _key data ->
let%sub _ = Bonsai.const () in
Bonsai.read data)
in
Bonsai.const ()
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.show handle;
[%expect {|
() |}];
Bonsai.Var.set var (Int.Map.of_alist_exn []);
Expect_test_helpers_core.require_does_not_raise [%here] (fun () -> Handle.show handle);
[%expect {| () |}]
;;
let%expect_test "constant_folding on assoc containing a lifecycle" =
let component =
Bonsai.assoc
(module Int)
(opaque_const_value Int.Map.empty)
~f:(fun _key data ->
let%sub () =
Bonsai.Edge.lifecycle
()
~on_activate:(Value.return (Ui_effect.print_s [%message "hello"]))
in
return data)
in
component
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.pre_process
|> sexp_of_packed_computation
|> print_s;
[%expect
{|
(Assoc
(map Incr)
(key_id 1)
(cmp_id 2)
(data_id 3)
(by (
Sub
(from (Lifecycle (value (Constant (id 12)))))
(via 14)
(into (
Sub
(from (Return (value (Mapn (inputs ((Named (uid 14))))))))
(via 16)
(into (Return (value (Named (uid 3)))))))))) |}]
;;
let%expect_test "constant_folding on assoc containing a lifecycle that depends on a \
value bound outside"
=
let component =
let%sub a = opaque_const "hello" in
Bonsai.assoc
(module Int)
(opaque_const_value Int.Map.empty)
~f:(fun _key data ->
let%sub () =
Bonsai.Edge.lifecycle
()
~on_activate:
(let%map a = a in
Ui_effect.print_s [%message a])
in
return data)
in
component
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.pre_process
|> sexp_of_packed_computation
|> print_s;
[%expect
{|
(Sub
(from (Return (value Incr)))
(via 1)
(into (
Assoc
(map Incr)
(key_id 3)
(cmp_id 4)
(data_id 5)
(by (
Sub
(from (
Sub
(from (
Return (
value (
Mapn (
inputs ((
Mapn (
inputs ((
Mapn (inputs ((Mapn (inputs ((Named (uid 1)))))))))))))))))
(via 13)
(into (
Sub
(from (Return (value (Mapn (inputs ((Named (uid 13))))))))
(via 15)
(into (Lifecycle (value (Named (uid 15)))))))))
(via 16)
(into (
Sub
(from (Return (value (Mapn (inputs ((Named (uid 16))))))))
(via 18)
(into (Return (value (Named (uid 5)))))))))))) |}]
;;
let%expect_test "constant_folding on assoc containing a dynamic_scope" =
let dyn_var = Bonsai.Dynamic_scope.create ~name:"dyn_var" ~fallback:0 () in
let component =
Bonsai.assoc
(module Int)
(opaque_const_value Int.Map.empty)
~f:(fun _key data ->
Bonsai.Dynamic_scope.set
dyn_var
(opaque_const_value 1)
~inside:
(let%sub x = Bonsai.Dynamic_scope.lookup dyn_var in
return (Value.both data x)))
in
component
|> Bonsai.Private.reveal_computation
|> Bonsai.Private.pre_process
|> sexp_of_packed_computation
|> print_s;
[%expect
{|
(Assoc
(map Incr)
(key_id 2)
(cmp_id 3)
(data_id 4)
(by (
Store
(id 0)
(value Incr)
(inner (
Sub
(from (Fetch (id 0)))
(via 5)
(into (
Return (
value (
Mapn (
inputs (
(Named (uid 4))
(Named (uid 5))))))))))))) |}]
;;
let%expect_test "on_display for updating a state (using on_change)" =
let callback =
Value.return (fun prev cur ->
Ui_effect.print_s [%message "change!" (prev : int option) (cur : int)])
in
let component input = Bonsai.Edge.on_change' (module Int) ~callback input in
let var = Bonsai.Var.create 1 in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = unit
let sexp_of_t () = Sexp.Atom "rendering..."
end))
(component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect {|
rendering...
(change! (prev ()) (cur 1)) |}];
Handle.show handle;
[%expect {| rendering... |}];
Handle.show handle;
[%expect {| rendering... |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {|
rendering...
(change! (prev (1)) (cur 2)) |}];
Handle.show handle;
[%expect {| rendering... |}];
Handle.show handle;
[%expect {| rendering... |}]
;;
let%expect_test "actor" =
let print_int_effect = printf "%d\n" |> Bonsai.Effect.of_sync_fun in
let component =
let%sub _, effect =
Bonsai.actor0
(module Int)
(module Unit)
~default_model:0
~recv:(fun ~schedule_event:_ v () -> v + 1, v)
in
return
@@
let%map effect = effect in
let%bind.Bonsai.Effect i = effect () in
print_int_effect i
in
let handle =
Handle.create
(module struct
type t = unit Effect.t
type incoming = unit
let view _ = ""
let incoming t () = t
end)
component
in
Handle.do_actions handle [ () ];
Handle.show handle;
[%expect {| 0 |}];
Handle.do_actions handle [ (); (); () ];
Handle.show handle;
[%expect {|
1
2
3 |}]
;;
let%expect_test "lifecycle" =
let effect action on =
Ui_effect.print_s [%message (action : string) (on : string)] |> Value.return
in
let component input =
let rendered = Bonsai.const "" in
if%sub input
then (
let%sub () =
Bonsai.Edge.lifecycle
~on_activate:(effect "activate" "a")
~on_deactivate:(effect "deactivate" "a")
~after_display:(effect "after-display" "a")
()
in
rendered)
else (
let%sub () =
Bonsai.Edge.lifecycle
~on_activate:(effect "activate" "b")
~on_deactivate:(effect "deactivate" "b")
~after_display:(effect "after-display" "b")
()
in
rendered)
in
let var = Bonsai.Var.create true in
let handle =
Handle.create (Result_spec.string (module String)) (component (Bonsai.Var.value var))
in
Handle.show handle;
[%expect
{|
((action activate) (on a))
((action after-display) (on a)) |}];
Bonsai.Var.set var false;
Handle.show handle;
[%expect
{|
((action deactivate) (on a))
((action activate) (on b))
((action after-display) (on b)) |}];
Bonsai.Var.set var true;
Handle.show handle;
[%expect
{|
((action deactivate) (on b))
((action activate) (on a))
((action after-display) (on a)) |}]
;;
let%test_module "Clock.every" =
(module struct
let%expect_test "Clocks that trigger immediately at the beginning" =
let print_hi = (fun () -> print_endline "hi") |> Bonsai.Effect.of_sync_fun in
let clocks =
[ Bonsai.Clock.every
~when_to_start_next_effect:`Every_multiple_of_period_blocking
~trigger_on_activate:true
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:
`Wait_period_after_previous_effect_finishes_blocking
~trigger_on_activate:true
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:`Wait_period_after_previous_effect_starts_blocking
~trigger_on_activate:true
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:`Every_multiple_of_period_non_blocking
~trigger_on_activate:true
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
]
in
List.iter clocks ~f:(fun clock ->
let handle = Handle.create (Result_spec.sexp (module Unit)) clock in
let move_forward_and_show () =
Handle.advance_clock_by handle (Time_ns.Span.of_sec 1.0);
Handle.recompute_view_until_stable handle
in
Handle.recompute_view_until_stable handle;
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| hi |}])
;;
let%expect_test "Clocks that wait span length before triggering at the beginning" =
let print_hi = (fun () -> print_endline "hi") |> Bonsai.Effect.of_sync_fun in
let clocks =
[ Bonsai.Clock.every
~when_to_start_next_effect:`Every_multiple_of_period_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:
`Wait_period_after_previous_effect_finishes_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:`Wait_period_after_previous_effect_starts_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:`Every_multiple_of_period_non_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 3.0)
(Value.return (print_hi ()))
]
in
List.iter clocks ~f:(fun clock ->
let handle = Handle.create (Result_spec.sexp (module Unit)) clock in
let move_forward_and_show () =
Handle.advance_clock_by handle (Time_ns.Span.of_sec 1.0);
Handle.recompute_view_until_stable handle
in
Handle.recompute_view_until_stable handle;
[%expect {| |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| |}];
move_forward_and_show ();
[%expect {| hi |}])
;;
let%expect_test "Clocks that move with a span of 0" =
let print_hi = (fun () -> print_endline "hi") |> Bonsai.Effect.of_sync_fun in
let clocks =
[ Bonsai.Clock.every
~when_to_start_next_effect:`Every_multiple_of_period_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 0.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:
`Wait_period_after_previous_effect_finishes_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 0.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:`Wait_period_after_previous_effect_starts_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 0.0)
(Value.return (print_hi ()))
; Bonsai.Clock.every
~when_to_start_next_effect:`Every_multiple_of_period_non_blocking
~trigger_on_activate:false
(Time_ns.Span.of_sec 0.0)
(Value.return (print_hi ()))
]
in
List.iter clocks ~f:(fun clock ->
let handle = Handle.create (Result_spec.sexp (module Unit)) clock in
let move_forward_and_show () =
Handle.advance_clock_by handle (Time_ns.Span.next Time_ns.Span.zero);
Handle.recompute_view_until_stable handle
in
Handle.recompute_view_until_stable handle;
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| hi |}];
move_forward_and_show ();
[%expect {| hi |}])
;;
let create_clock_handle
~start
~svar
~when_to_start_next_effect
~trigger_on_activate
~span
=
let action =
Value.return
(let%bind.Effect () =
(Effect.of_sync_fun (fun () -> print_endline "[tick] - effect started")) ()
in
let%bind.Effect () = (Effect.For_testing.of_svar_fun (fun () -> !svar)) () in
Effect.of_sync_fun (fun () -> print_endline "[tock] - effect ended") ())
in
let clock =
Bonsai.Clock.every
~when_to_start_next_effect
~trigger_on_activate
(Time_ns.Span.of_sec span)
action
in
Handle.create
~start_time:(Time_ns.of_span_since_epoch (Time_ns.Span.of_sec start))
(Result_spec.sexp (module Unit))
clock
;;
let print_time handle =
let clock = Handle.clock handle in
let now =
Ui_incr.Clock.now clock |> Time_ns.to_string_abs_parts ~zone:Time_float.Zone.utc
in
print_endline (List.last_exn now)
;;
let move_forward_and_show ?(after_show = Fn.const ()) ~handle span =
printf "before: ";
print_time handle;
Handle.advance_clock_by handle (Time_ns.Span.of_sec span);
printf "after: ";
print_time handle;
Handle.recompute_view_until_stable handle;
after_show ();
printf "after paint: ";
print_time handle
;;
let fill_and_reset_svar ~svar =
Effect.For_testing.Svar.fill_if_empty !svar ();
svar := Effect.For_testing.Svar.create ()
;;
let advance_and_clear_svar ~handle ~svar time =
Handle.advance_clock_by handle (Time_ns.Span.of_sec time);
fill_and_reset_svar ~svar
;;
let%expect_test "`Wait_period_after_previous_effect_finishes_blocking behavior" =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~start:7.0
~svar
~when_to_start_next_effect:`Wait_period_after_previous_effect_finishes_blocking
~span:3.0
~trigger_on_activate:false
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.recompute_view_until_stable handle;
move_forward_and_show 1.0;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:08.000000000Z
after paint: 00:00:08.000000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
2.0;
[%expect
{|
before: 00:00:08.000000000Z
after: 00:00:10.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:10.200000000Z |}];
move_forward_and_show 2.8;
[%expect
{|
before: 00:00:10.200000000Z
after: 00:00:13.000000000Z
after paint: 00:00:13.000000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
0.2;
[%expect
{|
before: 00:00:13.000000000Z
after: 00:00:13.200000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:13.400000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:13.400000000Z
after: 00:00:16.400000000Z
[tick] - effect started
after paint: 00:00:16.400000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:16.400000000Z
after: 00:00:19.400000000Z
after paint: 00:00:19.400000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:19.400000000Z
after: 00:00:22.400000000Z
after paint: 00:00:22.400000000Z |}];
fill_and_reset_svar ~svar;
[%expect {| [tock] - effect ended |}];
move_forward_and_show 2.9;
[%expect
{|
before: 00:00:22.400000000Z
after: 00:00:25.300000000Z
after paint: 00:00:25.300000000Z |}];
move_forward_and_show 0.1;
[%expect
{|
before: 00:00:25.300000000Z
after: 00:00:25.400000000Z
[tick] - effect started
after paint: 00:00:25.400000000Z |}]
;;
let%expect_test "`Wait_period_after_previous_effect_starts_blocking behavior" =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:`Wait_period_after_previous_effect_starts_blocking
~span:3.0
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 1.0;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:08.000000000Z
after paint: 00:00:08.000000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
2.0;
[%expect
{|
before: 00:00:08.000000000Z
after: 00:00:10.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:10.200000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
2.8;
[%expect
{|
before: 00:00:10.200000000Z
after: 00:00:13.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:13.200000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:13.200000000Z
after: 00:00:16.200000000Z
[tick] - effect started
after paint: 00:00:16.200000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:16.200000000Z
after: 00:00:19.200000000Z
after paint: 00:00:19.200000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:19.200000000Z
after: 00:00:22.200000000Z
after paint: 00:00:22.200000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:22.200000000Z
after: 00:00:25.200000000Z
after paint: 00:00:25.200000000Z |}];
move_forward_and_show 1.0;
[%expect
{|
before: 00:00:25.200000000Z
after: 00:00:26.200000000Z
after paint: 00:00:26.200000000Z |}];
fill_and_reset_svar ~svar;
[%expect {| [tock] - effect ended |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
0.01;
[%expect
{|
before: 00:00:26.200000000Z
after: 00:00:26.210000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:26.410000000Z |}];
move_forward_and_show 2.7;
[%expect
{|
before: 00:00:26.410000000Z
after: 00:00:29.110000000Z
after paint: 00:00:29.110000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
0.1;
[%expect
{|
before: 00:00:29.110000000Z
after: 00:00:29.210000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:29.410000000Z |}]
;;
let%test_module "Resilience against bugs from action time being equal to span time" =
(module struct
let%expect_test _ =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:
`Wait_period_after_previous_effect_starts_blocking
~span:3.0
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:10.000000000Z
[tick] - effect started
after paint: 00:00:10.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:10.000000000Z
after: 00:00:13.000000000Z
after paint: 00:00:13.000000000Z |}];
fill_and_reset_svar ~svar;
[%expect {| [tock] - effect ended |}];
move_forward_and_show 0.000001;
[%expect
{|
before: 00:00:13.000000000Z
after: 00:00:13.000001000Z
[tick] - effect started
after paint: 00:00:13.000001000Z |}]
;;
let%expect_test _ =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:
`Wait_period_after_previous_effect_finishes_blocking
~span:3.0
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 3.;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:10.000000000Z
[tick] - effect started
after paint: 00:00:10.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:10.000000000Z
after: 00:00:13.000000000Z
after paint: 00:00:13.000000000Z |}];
fill_and_reset_svar ~svar;
[%expect {| [tock] - effect ended |}];
move_forward_and_show 0.000001;
[%expect
{|
before: 00:00:13.000000000Z
after: 00:00:13.000001000Z
after paint: 00:00:13.000001000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:13.000001000Z
after: 00:00:16.000001000Z
[tick] - effect started
after paint: 00:00:16.000001000Z |}]
;;
let%expect_test _ =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:true
~start:7.0
~svar
~when_to_start_next_effect:
`Wait_period_after_previous_effect_finishes_blocking
~span:3.0
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
Handle.recompute_view handle;
[%expect {|
()
[tick] - effect started |}];
move_forward_and_show 3.;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:10.000000000Z
after paint: 00:00:10.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:10.000000000Z
after: 00:00:13.000000000Z
after paint: 00:00:13.000000000Z |}];
fill_and_reset_svar ~svar;
[%expect {| [tock] - effect ended |}];
Handle.recompute_view_until_stable handle
;;
let%expect_test "Next multiple clock" =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:
`Wait_period_after_previous_effect_starts_blocking
~span:3.0
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:10.000000000Z
[tick] - effect started
after paint: 00:00:10.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:10.000000000Z
after: 00:00:13.000000000Z
after paint: 00:00:13.000000000Z |}];
fill_and_reset_svar ~svar;
[%expect {| [tock] - effect ended |}];
move_forward_and_show 0.000000001;
[%expect
{|
before: 00:00:13.000000000Z
after: 00:00:13.000000001Z
[tick] - effect started
after paint: 00:00:13.000000001Z |}]
;;
end)
;;
let%expect_test "`Every_multiple_of_period_blocking clock skip behavior" =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:`Every_multiple_of_period_blocking
~span:3.0
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 1.0;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:08.000000000Z
after paint: 00:00:08.000000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
2.0;
[%expect
{|
before: 00:00:08.000000000Z
after: 00:00:10.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:10.200000000Z |}];
move_forward_and_show 2.7;
[%expect
{|
before: 00:00:10.200000000Z
after: 00:00:12.900000000Z
after paint: 00:00:12.900000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
0.1;
[%expect
{|
before: 00:00:12.900000000Z
after: 00:00:13.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:13.200000000Z |}];
move_forward_and_show 2.8;
[%expect
{|
before: 00:00:13.200000000Z
after: 00:00:16.000000000Z
[tick] - effect started
after paint: 00:00:16.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:16.000000000Z
after: 00:00:19.000000000Z
after paint: 00:00:19.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:19.000000000Z
after: 00:00:22.000000000Z
after paint: 00:00:22.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:22.000000000Z
after: 00:00:25.000000000Z
after paint: 00:00:25.000000000Z |}];
move_forward_and_show 1.0;
[%expect
{|
before: 00:00:25.000000000Z
after: 00:00:26.000000000Z
after paint: 00:00:26.000000000Z |}];
fill_and_reset_svar ~svar;
[%expect {| [tock] - effect ended |}];
move_forward_and_show 0.1;
[%expect
{|
before: 00:00:26.000000000Z
after: 00:00:26.100000000Z
after paint: 00:00:26.100000000Z |}];
move_forward_and_show 1.8;
[%expect
{|
before: 00:00:26.100000000Z
after: 00:00:27.900000000Z
after paint: 00:00:27.900000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
0.1;
[%expect
{|
before: 00:00:27.900000000Z
after: 00:00:28.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:28.200000000Z |}]
;;
let%expect_test "`Every_multiple_of_period_non_blocking clock skip behavior" =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:`Every_multiple_of_period_non_blocking
~span:3.0
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 1.0;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:08.000000000Z
after paint: 00:00:08.000000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
2.0;
[%expect
{|
before: 00:00:08.000000000Z
after: 00:00:10.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:10.200000000Z |}];
move_forward_and_show 2.7;
[%expect
{|
before: 00:00:10.200000000Z
after: 00:00:12.900000000Z
after paint: 00:00:12.900000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
0.1;
[%expect
{|
before: 00:00:12.900000000Z
after: 00:00:13.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:13.200000000Z |}];
move_forward_and_show 2.8;
[%expect
{|
before: 00:00:13.200000000Z
after: 00:00:16.000000000Z
[tick] - effect started
after paint: 00:00:16.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:16.000000000Z
after: 00:00:19.000000000Z
[tick] - effect started
after paint: 00:00:19.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:19.000000000Z
after: 00:00:22.000000000Z
[tick] - effect started
after paint: 00:00:22.000000000Z |}];
move_forward_and_show 3.0;
[%expect
{|
before: 00:00:22.000000000Z
after: 00:00:25.000000000Z
[tick] - effect started
after paint: 00:00:25.000000000Z |}];
move_forward_and_show 1.0;
[%expect
{|
before: 00:00:25.000000000Z
after: 00:00:26.000000000Z
after paint: 00:00:26.000000000Z |}];
fill_and_reset_svar ~svar;
[%expect
{|
[tock] - effect ended
[tock] - effect ended
[tock] - effect ended
[tock] - effect ended |}];
move_forward_and_show 0.1;
[%expect
{|
before: 00:00:26.000000000Z
after: 00:00:26.100000000Z
after paint: 00:00:26.100000000Z |}];
move_forward_and_show 1.8;
[%expect
{|
before: 00:00:26.100000000Z
after: 00:00:27.900000000Z
after paint: 00:00:27.900000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.2)
0.1;
[%expect
{|
before: 00:00:27.900000000Z
after: 00:00:28.000000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:28.200000000Z |}]
;;
let%test_module "Resilience against inactive clocks" =
(module struct
let%expect_test _ =
let print_sanitized_dropped_action_if_needed =
Effect.of_sync_fun (fun () ->
let out = [%expect.output] in
if String.is_empty out
then ()
else print_endline "[Whoops! An action was dropped!]")
in
List.iter
[ `Wait_period_after_previous_effect_starts_blocking
; `Wait_period_after_previous_effect_finishes_blocking
; `Every_multiple_of_period_blocking
; `Every_multiple_of_period_non_blocking
]
~f:(fun when_to_start_next_effect ->
let component =
let%sub state, set_state = Bonsai.state (module Bool) ~default_model:true in
match%sub state with
| true ->
let%sub () =
Bonsai.Clock.every
~when_to_start_next_effect
~trigger_on_activate:false
(Time_ns.Span.of_sec 3.0)
(let%map set_state = set_state in
let%bind.Effect () =
(Effect.of_sync_fun (fun () ->
print_endline "[tick tock] - (state := false)"))
()
in
let%bind.Effect () = set_state false in
print_sanitized_dropped_action_if_needed ())
in
Bonsai.const true
| false ->
let%sub () =
Bonsai.Edge.after_display
(let%map set_state = set_state in
let%bind.Effect () =
(Effect.of_sync_fun (fun () -> print_endline "(state := true)")) ()
in
let%bind.Effect () = set_state true in
print_sanitized_dropped_action_if_needed ())
in
Bonsai.const false
in
let start = Time_ns.of_span_since_epoch (Time_ns.Span.of_min 1.0) in
let handle =
Handle.create (Result_spec.sexp (module Bool)) ~start_time:start component
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| true |}];
move_forward_and_show 3.0;
[%expect
{|
[Whoops! An action was dropped!]
after paint: 00:01:03.000000000Z |}];
Handle.show handle;
[%expect {| true |}];
move_forward_and_show 3.0;
[%expect
{|
[Whoops! An action was dropped!]
after paint: 00:01:06.000000000Z |}];
Handle.show handle;
[%expect {| true |}];
move_forward_and_show 3.0;
[%expect
{|
[Whoops! An action was dropped!]
after paint: 00:01:09.000000000Z |}];
Handle.show handle;
[%expect {| true |}];
move_forward_and_show 3.0;
[%expect
{|
[Whoops! An action was dropped!]
after paint: 00:01:12.000000000Z |}];
Handle.show handle;
[%expect {| true |}])
;;
end)
;;
let%test_module "Super small timespans on clock" =
(module struct
let%expect_test _ =
List.iter
[ `Every_multiple_of_period_blocking
; `Wait_period_after_previous_effect_finishes_blocking
; `Wait_period_after_previous_effect_starts_blocking
; `Every_multiple_of_period_non_blocking
]
~f:(fun when_to_start_next_effect ->
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:0.0
~svar
~when_to_start_next_effect
~span:0.01
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:00.000000000Z
after: 00:00:00.010000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:00.010000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:00.010000000Z
after: 00:00:00.020000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:00.020000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:00.020000000Z
after: 00:00:00.030000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:00.030000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:00.030000000Z
after: 00:00:00.040000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:00.040000000Z |}])
;;
let%expect_test _ =
List.iter
[ `Every_multiple_of_period_blocking
; `Wait_period_after_previous_effect_finishes_blocking
; `Wait_period_after_previous_effect_starts_blocking
; `Every_multiple_of_period_non_blocking
]
~f:(fun when_to_start_next_effect ->
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:0.0
~svar
~when_to_start_next_effect
~span:0.01
in
let move_forward_and_show ?(after_show = Fn.const ()) ~handle span =
printf "before: ";
print_time handle;
Handle.advance_clock_by handle (Time_ns.Span.of_sec span);
printf "after: ";
print_time handle;
Handle.show handle;
Handle.advance_clock_by handle (Time_ns.Span.of_sec 1.0);
Handle.recompute_view handle;
after_show ();
printf "after paint: ";
print_time handle
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:00.000000000Z
after: 00:00:00.010000000Z
()
[tick] - effect started
[tock] - effect ended
after paint: 00:00:01.010000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:01.010000000Z
after: 00:00:01.020000000Z
()
[tick] - effect started
[tock] - effect ended
after paint: 00:00:02.020000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:02.020000000Z
after: 00:00:02.030000000Z
()
[tick] - effect started
[tock] - effect ended
after paint: 00:00:03.030000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.)
0.01;
[%expect
{|
before: 00:00:03.030000000Z
after: 00:00:03.040000000Z
()
[tick] - effect started
[tock] - effect ended
after paint: 00:00:04.040000000Z |}])
;;
let%expect_test "`Wait_period_after_previous_effect_finishes_blocking skip \
behavior"
=
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:
`Wait_period_after_previous_effect_finishes_blocking
~span:0.01
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 0.005;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:07.005000000Z
after paint: 00:00:07.005000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.005;
[%expect
{|
before: 00:00:07.005000000Z
after: 00:00:07.010000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:07.012000000Z |}];
move_forward_and_show 0.008;
[%expect
{|
before: 00:00:07.012000000Z
after: 00:00:07.020000000Z
after paint: 00:00:07.020000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.002;
[%expect
{|
before: 00:00:07.020000000Z
after: 00:00:07.022000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:07.024000000Z |}]
;;
let%expect_test "`Wait_period_after_previous_effect_starts_blocking skip behavior"
=
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:
`Wait_period_after_previous_effect_starts_blocking
~span:0.01
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 0.005;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:07.005000000Z
after paint: 00:00:07.005000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.005;
[%expect
{|
before: 00:00:07.005000000Z
after: 00:00:07.010000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:07.012000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.008;
[%expect
{|
before: 00:00:07.012000000Z
after: 00:00:07.020000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:07.022000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 10.)
0.008;
[%expect
{|
before: 00:00:07.022000000Z
after: 00:00:07.030000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:17.030000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.00001;
[%expect
{|
before: 00:00:17.030000000Z
after: 00:00:17.030010000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:17.032010000Z |}];
move_forward_and_show 0.007;
[%expect
{|
before: 00:00:17.032010000Z
after: 00:00:17.039010000Z
after paint: 00:00:17.039010000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.001;
[%expect
{|
before: 00:00:17.039010000Z
after: 00:00:17.040010000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:17.042010000Z |}]
;;
let%expect_test "`Every_multiple_of_period_blocking behavior" =
let svar = ref (Effect.For_testing.Svar.create ()) in
let handle =
create_clock_handle
~trigger_on_activate:false
~start:7.0
~svar
~when_to_start_next_effect:`Every_multiple_of_period_blocking
~span:0.01
in
let move_forward_and_show = move_forward_and_show ~handle in
Handle.show handle;
[%expect {| () |}];
move_forward_and_show 0.005;
[%expect
{|
before: 00:00:07.000000000Z
after: 00:00:07.005000000Z
after paint: 00:00:07.005000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.005;
[%expect
{|
before: 00:00:07.005000000Z
after: 00:00:07.010000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:07.012000000Z |}];
move_forward_and_show 0.007;
[%expect
{|
before: 00:00:07.012000000Z
after: 00:00:07.019000000Z
after paint: 00:00:07.019000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.001;
[%expect
{|
before: 00:00:07.019000000Z
after: 00:00:07.020000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:07.022000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 10.0)
0.008;
[%expect
{|
before: 00:00:07.022000000Z
after: 00:00:07.030000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:17.030000000Z |}];
move_forward_and_show 0.001;
[%expect
{|
before: 00:00:17.030000000Z
after: 00:00:17.031000000Z
after paint: 00:00:17.031000000Z |}];
move_forward_and_show 0.008;
[%expect
{|
before: 00:00:17.031000000Z
after: 00:00:17.039000000Z
after paint: 00:00:17.039000000Z |}];
move_forward_and_show
~after_show:(fun () -> advance_and_clear_svar ~handle ~svar 0.002)
0.001;
[%expect
{|
before: 00:00:17.039000000Z
after: 00:00:17.040000000Z
[tick] - effect started
[tock] - effect ended
after paint: 00:00:17.042000000Z |}]
;;
end)
;;
let%expect_test {| [every] continues to trigger effects even when the action takes a long time |}
=
let match_var = Bonsai.Var.create true in
let component =
let%sub (), inject =
let%sub clock = Bonsai.Incr.with_clock Incr.return in
Bonsai.state_machine1
(module Unit)
(module Unit)
~default_model:()
~apply_action:(fun ~inject:_ ~schedule_event clock () () ->
match clock with
| Active clock ->
schedule_event
(Effect.of_sync_fun
(Incr.Clock.advance_clock_by clock)
(Time_ns.Span.of_sec 5.0));
print_endline "did action"
| Inactive -> print_endline "inactive")
clock
in
match%sub Bonsai.Var.value match_var with
| true ->
Bonsai.Clock.every
~when_to_start_next_effect:`Every_multiple_of_period_non_blocking
~trigger_on_activate:true
(Time_ns.Span.of_sec 3.0)
(let%map inject = inject in
inject ())
| false -> Bonsai.const ()
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.recompute_view handle;
[%expect {| |}];
Handle.recompute_view handle;
[%expect {| did action |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 5.0);
Handle.recompute_view handle;
[%expect {| did action |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 5.0);
Handle.recompute_view handle;
[%expect {| did action |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 5.0);
Handle.recompute_view handle;
[%expect {| did action |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 5.0);
Handle.recompute_view handle;
[%expect {| did action |}]
;;
end)
;;
let edge_poll_shared ~get_expect_output =
let effect_tracker = Query_response_tracker.create () in
let effect = Bonsai.Effect.For_testing.of_query_response_tracker effect_tracker in
let var = Bonsai.Var.create "hello" in
let component =
Bonsai.Edge.Poll.effect_on_change
(module String)
(module String)
Bonsai.Edge.Poll.Starting.empty
(Bonsai.Var.value var)
~effect:(Value.return effect)
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = string option [@@deriving sexp]
end))
component
in
let trigger_display () =
Handle.show handle;
let pending = Query_response_tracker.queries_pending_response effect_tracker in
let output = Sexp.of_string (get_expect_output ()) in
print_s [%message (pending : string list) (output : Sexp.t)]
in
var, effect_tracker, trigger_display
;;
let%expect_test "Edge.poll in order" =
let get_expect_output () = [%expect.output] in
let var, effect_tracker, trigger_display = edge_poll_shared ~get_expect_output in
trigger_display ();
[%expect {|
((pending ())
(output ())) |}];
trigger_display ();
[%expect {|
((pending (hello)) (output ())) |}];
Bonsai.Var.set var "world";
trigger_display ();
[%expect {|
((pending (hello)) (output ())) |}];
trigger_display ();
[%expect {|
((pending (world hello)) (output ())) |}];
Query_response_tracker.maybe_respond effect_tracker ~f:(fun s ->
Respond (String.uppercase s));
trigger_display ();
[%expect {| ((pending ()) (output (WORLD))) |}]
;;
let%expect_test "Edge.poll out of order" =
let get_expect_output () = [%expect.output] in
let var, effect_tracker, trigger_display = edge_poll_shared ~get_expect_output in
trigger_display ();
[%expect {|
((pending ())
(output ())) |}];
trigger_display ();
[%expect {|
((pending (hello)) (output ())) |}];
Bonsai.Var.set var "world";
trigger_display ();
[%expect {|
((pending (hello)) (output ())) |}];
trigger_display ();
[%expect {|
((pending (world hello)) (output ())) |}];
Query_response_tracker.maybe_respond effect_tracker ~f:(function
| "world" as s -> Respond (String.uppercase s)
| _ -> No_response_yet);
trigger_display ();
[%expect {|
((pending (hello))
(output (WORLD))) |}];
Query_response_tracker.maybe_respond effect_tracker ~f:(function
| "hello" as s -> Respond (String.uppercase s)
| _ -> No_response_yet);
trigger_display ();
[%expect {|
((pending ()) (output (WORLD))) |}]
;;
let%expect_test "Clock.now" =
let component = Bonsai.Clock.now in
let handle =
Handle.create (Result_spec.sexp (module Time_ns.Alternate_sexp)) component
in
Handle.show handle;
[%expect {| "1970-01-01 00:00:00Z" |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 0.5);
Handle.show handle;
[%expect {| "1970-01-01 00:00:00.5Z" |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 0.7);
Handle.show handle;
[%expect {| "1970-01-01 00:00:01.2Z" |}]
;;
let%expect_test "Clock.now" =
let component =
let%sub get_time = Bonsai.Clock.get_current_time in
Bonsai.Edge.after_display
(let%map get_time = get_time in
let%bind.Effect now = get_time in
Effect.print_s [%sexp (now : Time_ns.Alternate_sexp.t)])
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.recompute_view handle;
[%expect {| "1970-01-01 00:00:00Z" |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 0.5);
Handle.recompute_view handle;
[%expect {| "1970-01-01 00:00:00.5Z" |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 0.7);
Handle.recompute_view handle;
[%expect {| "1970-01-01 00:00:01.2Z" |}]
;;
let%expect_test "Clock.approx_now" =
let component = Bonsai.Clock.approx_now ~tick_every:(Time_ns.Span.of_sec 1.0) in
let handle =
Handle.create (Result_spec.sexp (module Time_ns.Alternate_sexp)) component
in
Handle.show handle;
[%expect {| "1970-01-01 00:00:00Z" |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 0.5);
Handle.show handle;
[%expect {| "1970-01-01 00:00:00Z" |}];
Handle.advance_clock_by handle (Time_ns.Span.of_sec 0.7);
Handle.show handle;
[%expect {| "1970-01-01 00:00:01.2Z" |}]
;;
let chain_computation =
let%sub a = Bonsai.const "x" in
let%sub b, set_b = Bonsai.state (module String) ~default_model:" " in
let%sub c, set_c = Bonsai.state (module String) ~default_model:" " in
let%sub d, set_d = Bonsai.state (module String) ~default_model:" " in
let%sub () = Bonsai.Edge.on_change (module String) a ~callback:set_b in
let%sub () = Bonsai.Edge.on_change (module String) b ~callback:set_c in
let%sub () = Bonsai.Edge.on_change (module String) c ~callback:set_d in
return (Value.map4 a b c d ~f:(sprintf "a:%s b:%s c:%s d:%s"))
;;
let%expect_test "chained on_change" =
let handle = Handle.create (Result_spec.string (module String)) chain_computation in
Handle.show handle;
[%expect {| a:x b: c: d: |}];
Handle.show handle;
[%expect {| a:x b:x c: d: |}];
Handle.show handle;
[%expect {| a:x b:x c:x d: |}];
Handle.show handle;
[%expect {| a:x b:x c:x d:x |}];
Handle.show handle;
[%expect {| a:x b:x c:x d:x |}]
;;
let%expect_test "chained on_change with recompute_view_until_stable" =
let handle = Handle.create (Result_spec.string (module String)) chain_computation in
Handle.recompute_view_until_stable handle;
Handle.show handle;
[%expect {| a:x b:x c:x d:x |}]
;;
let%expect_test "infinite chain!" =
let computation =
let%sub state, set_state = Bonsai.state (module Int) ~default_model:0 in
let callback =
let%map set_state = set_state in
fun new_state -> set_state (new_state + 1)
in
let%sub () = Bonsai.Edge.on_change (module Int) state ~callback in
Bonsai.const ()
in
let handle = Handle.create (Result_spec.string (module Unit)) computation in
Expect_test_helpers_base.require_does_raise [%here] (fun () ->
Handle.recompute_view_until_stable handle);
[%expect {| (Failure "view not stable after 100 recomputations") |}]
;;
let%expect_test "computation.all_map" =
let component =
let%map.Computation map =
[ 1, Bonsai.const "a"; 2, Bonsai.const "b" ]
|> Int.Map.of_alist_exn
|> Computation.all_map
in
[%sexp_of: string Int.Map.t] map
in
let handle = Handle.create (Result_spec.string (module Sexp)) component in
Handle.show handle;
[%expect {| ((1 a)(2 b)) |}]
;;
let%expect_test "dynamic lookup" =
let id = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no" () in
let component =
Bonsai.Dynamic_scope.set
id
(Value.return "hello")
~inside:(Bonsai.Dynamic_scope.lookup id)
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| hello |}]
;;
let%expect_test "dynamic lookup fails" =
let id = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no" () in
let component = Bonsai.Dynamic_scope.lookup id in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| no |}]
;;
let%expect_test "eval inside one, use inside another" =
let id = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no" () in
let component =
let%sub a =
Bonsai.Dynamic_scope.set
id
(Value.return "hello")
~inside:(Bonsai.Dynamic_scope.lookup id)
in
let%sub b =
Bonsai.Dynamic_scope.set id (Value.return "world") ~inside:(Bonsai.read a)
in
return b
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| hello |}]
;;
let%expect_test "sub outside, use inside" =
let id = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no" () in
let component =
let%sub find = Bonsai.Dynamic_scope.lookup id in
Bonsai.Dynamic_scope.set id (Value.return "hello") ~inside:(return find)
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| no |}]
;;
let%expect_test "use resetter" =
let id = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no" () in
let component =
Bonsai.Dynamic_scope.set' id (Value.return "hello") ~f:(fun { revert } ->
revert (Bonsai.Dynamic_scope.lookup id))
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| no |}]
;;
let%expect_test "nested resetter" =
let id = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no" () in
let component =
Bonsai.Dynamic_scope.set
id
(Value.return "hello")
~inside:
(Bonsai.Dynamic_scope.set' id (Value.return "world") ~f:(fun { revert } ->
revert (Bonsai.Dynamic_scope.lookup id)))
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| hello |}]
;;
let%expect_test "resetter only impacts the id you target" =
let id_a = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no-a" () in
let id_b = Bonsai.Dynamic_scope.create ~name:"my-id" ~fallback:"no-b" () in
let component =
Bonsai.Dynamic_scope.set' id_a (Value.return "hello") ~f:(fun { revert } ->
Bonsai.Dynamic_scope.set
id_b
(Value.return "world")
~inside:
(revert
@@
let%sub a = Bonsai.Dynamic_scope.lookup id_a in
let%sub b = Bonsai.Dynamic_scope.lookup id_b in
return (Value.map2 a b ~f:(fun a b -> a ^ " " ^ b))))
in
let handle = Handle.create (Result_spec.string (module String)) component in
Handle.show handle;
[%expect {| no-a world |}]
;;
module M = struct
type t =
{ a : string
; b : int
}
[@@deriving sexp_of, fields]
end
let%expect_test "derived value" =
let id =
Bonsai.Dynamic_scope.create
~sexp_of:M.sexp_of_t
~name:"my-id"
~fallback:{ a = "hi"; b = 5 }
()
in
let a = Bonsai.Dynamic_scope.derived id ~get:M.a ~set:(Field.fset M.Fields.a) in
let component =
Bonsai.Dynamic_scope.set
a
(Value.return "hello")
~inside:(Bonsai.Dynamic_scope.lookup id)
in
let handle = Handle.create (Result_spec.sexp (module M)) component in
Handle.show handle;
[%expect {| ((a hello) (b 5)) |}]
;;
let%expect_test "derived value revert" =
let id =
Bonsai.Dynamic_scope.create
~sexp_of:M.sexp_of_t
~name:"my-id"
~fallback:{ a = "hi"; b = 5 }
()
in
let a = Bonsai.Dynamic_scope.derived id ~get:M.a ~set:(Field.fset M.Fields.a) in
let component =
Bonsai.Dynamic_scope.set' a (Value.return "hello") ~f:(fun { revert } ->
revert (Bonsai.Dynamic_scope.lookup id))
in
let handle = Handle.create (Result_spec.sexp (module M)) component in
Handle.show handle;
[%expect {| ((a hi) (b 5)) |}]
;;
let%expect_test "derived value nested revert inner" =
let id =
Bonsai.Dynamic_scope.create
~sexp_of:M.sexp_of_t
~name:"my-id"
~fallback:{ a = "hi"; b = 5 }
()
in
let a = Bonsai.Dynamic_scope.derived id ~get:M.a ~set:(Field.fset M.Fields.a) in
let component =
Bonsai.Dynamic_scope.set
a
(Value.return "hello")
~inside:
(Bonsai.Dynamic_scope.set' a (Value.return "world") ~f:(fun { revert } ->
revert (Bonsai.Dynamic_scope.lookup id)))
in
let handle = Handle.create (Result_spec.sexp (module M)) component in
Handle.show handle;
[%expect {| ((a hello) (b 5)) |}]
;;
let%expect_test "derived value nested revert outer" =
let id =
Bonsai.Dynamic_scope.create
~sexp_of:M.sexp_of_t
~name:"my-id"
~fallback:{ a = "hi"; b = 5 }
()
in
let a = Bonsai.Dynamic_scope.derived id ~get:M.a ~set:(Field.fset M.Fields.a) in
let b = Bonsai.Dynamic_scope.derived id ~get:M.b ~set:(Field.fset M.Fields.b) in
let component =
Bonsai.Dynamic_scope.set' a (Value.return "hello") ~f:(fun { revert } ->
Bonsai.Dynamic_scope.set
b
(Value.return 1000)
~inside:(revert (Bonsai.Dynamic_scope.lookup id)))
in
let handle = Handle.create (Result_spec.sexp (module M)) component in
Handle.show handle;
[%expect {| ((a hi) (b 1000)) |}]
;;
let%expect_test "exactly once" =
let component =
Bonsai_extra.exactly_once
(Bonsai.Value.return (Ui_effect.print_s [%message "hello!"]))
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.show handle;
[%expect {|
()
hello! |}];
Handle.show handle;
[%expect {| () |}]
;;
let%expect_test "exactly once with value" =
let component =
Bonsai_extra.exactly_once_with_value
(module String)
(Bonsai.Value.return
(let%bind.Ui_effect () = Ui_effect.print_s [%message "hello!"] in
Ui_effect.return "done"))
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = string option [@@deriving sexp, equal]
end))
component
in
Handle.show handle;
[%expect {|
()
hello! |}];
Handle.show handle;
[%expect {| (done) |}]
;;
let%expect_test "yoink" =
let component =
let%sub state, set_state = Bonsai.state (module Int) ~default_model:0 in
let%sub get_state = Bonsai.yoink state in
Bonsai_extra.exactly_once
(let%map get_state = get_state
and set_state = set_state in
let%bind.Bonsai.Effect () = set_state 1 in
let%bind.Bonsai.Effect s =
match%bind.Effect get_state with
| Active s -> Effect.return s
| Inactive -> Effect.never
in
Ui_effect.print_s [%message (s : int)])
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.show handle;
[%expect {| () |}];
Handle.show handle;
[%expect {|
(s 1)
() |}]
;;
let%expect_test "freeze" =
let var = Bonsai.Var.create "hello" in
let component = Bonsai.freeze (module String) (Bonsai.Var.value var) in
let handle = Handle.create (Result_spec.sexp (module String)) component in
Handle.show handle;
[%expect {| hello |}];
Bonsai.Var.set var "world";
Handle.show handle;
[%expect {| hello |}]
;;
let%expect_test "effect-lazy" =
let message = Bonsai.Var.create "hello" in
let on = Bonsai.Var.create true in
let component =
let%sub on_deactivate =
let%arr message = Bonsai.Var.value message in
let a =
print_endline "computing a...";
Effect.print_s [%sexp "a", (message : string)]
in
let b =
Effect.lazy_
(lazy
(print_endline "computing b...";
Effect.print_s [%sexp "b", (message : string)]))
in
Effect.Many [ a; b ]
in
if%sub Bonsai.Var.value on
then Bonsai.Edge.lifecycle ~on_deactivate ()
else Bonsai.const ()
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.show handle;
Bonsai.Var.set message "there";
Handle.show handle;
Bonsai.Var.set message "world";
Handle.show handle;
[%expect
{|
computing a...
()
computing a...
()
computing a...
() |}];
Bonsai.Var.set on false;
Handle.show handle;
[%expect
{|
()
(a world)
computing b...
(b world) |}]
;;
let%expect_test "id_gen" =
let module Id = Bonsai_extra.Id_gen (Int) () in
let component =
let%sub next = Id.component in
Bonsai.Edge.after_display
(let%map next = next in
let%bind.Bonsai.Effect id = next in
Ui_effect.print_s [%sexp (id : Id.t)])
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.recompute_view handle;
Handle.recompute_view handle;
Handle.recompute_view handle;
Handle.recompute_view handle;
Handle.recompute_view handle;
[%expect {|
0
1
2
3 |}]
;;
let%expect_test "with_self_effect" =
let module Result_spec = struct
type action =
| Set of int
| Print
type t = string * (action -> unit Effect.t) [@@deriving sexp]
type incoming = action
let equal = phys_equal
let view (result, _) = result
let incoming (_, self_effect) = self_effect
end
in
let component =
Bonsai_extra.with_self_effect
(module Result_spec)
~f:(fun input ->
let%sub state = Bonsai.state (module Int) ~default_model:0 in
let%arr number, set_number = state
and input = input in
let effect action =
match action with
| Result_spec.Print ->
(match%bind.Effect input with
| Active (computed, (_ : Result_spec.action -> unit Effect.t)) ->
Effect.print_s [%message "Active" (computed : string)]
| Inactive -> Effect.print_s [%message "Inactive"])
| Set i -> set_number i
in
let computed = sprintf "the value: [%d]" number in
computed, effect)
in
let handle = Handle.create (module Result_spec) component in
Handle.show handle;
[%expect {| the value: [0] |}];
Handle.do_actions handle [ Print ];
[%expect {||}];
Handle.show handle;
[%expect {|
(Active (computed "the value: [0]"))
the value: [0] |}];
Handle.do_actions handle [ Set 1 ];
Handle.show handle;
[%expect {| the value: [1] |}];
Handle.do_actions handle [ Set 5; Print; Set 6; Print ];
Handle.show handle;
[%expect
{|
(Active (computed "the value: [5]"))
(Active (computed "the value: [6]"))
the value: [6] |}]
;;
let%expect_test "state_machine_dynamic_model" =
let component =
Bonsai_extra.state_machine0_dynamic_model
(module String)
(module String)
~model:
(`Computed
(Bonsai.Value.return (function
| None -> "not set "
| Some s -> sprintf "set %s" s)))
~apply_action:(fun ~inject:_ ~schedule_event:_ _model action -> action)
in
let handle =
Handle.create
(module struct
type t = string * (string -> unit Effect.t)
type incoming = string
let view (s, _) = s
let incoming (_, s) = s
end)
component
in
Handle.show handle;
[%expect {| not set |}];
Handle.do_actions handle [ "here" ];
Handle.show handle;
[%expect {| set here |}]
;;
let%expect_test "portal" =
let var = Bonsai.Var.create (Sexp.Atom "hello") in
let component =
Bonsai_extra.with_inject_fixed_point (fun inject ->
let%sub () =
Bonsai.Edge.on_change (module Sexp) (Bonsai.Var.value var) ~callback:inject
in
Bonsai.const ((), Ui_effect.print_s))
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.recompute_view_until_stable handle;
[%expect {| hello |}];
Bonsai.Var.set var (Sexp.Atom "world");
Handle.recompute_view_until_stable handle;
[%expect {| world |}]
;;
let%expect_test "portal 2" =
let component =
Bonsai_extra.with_inject_fixed_point (fun inject_fix ->
let%sub state1, inject1 =
Bonsai.state_machine1
(module Int)
(module Int)
~default_model:0
~apply_action:(fun ~inject:_ ~schedule_event inject model action ->
match inject with
| Active inject ->
schedule_event (inject (model + action));
action
| Inactive ->
print_endline "inactive";
model)
inject_fix
in
let%sub (), inject2 =
Bonsai.state_machine1
(module Unit)
(module Int)
~default_model:()
~apply_action:(fun ~inject:_ ~schedule_event state1 _model action ->
schedule_event
(Ui_effect.print_s
[%message (state1 : int Bonsai.Computation_status.t) (action : int)]);
())
state1
in
return @@ Bonsai.Value.both inject1 inject2)
in
let handle =
Handle.create
(module struct
type t = int -> unit Effect.t
type incoming = int
let view _ = ""
let incoming = Fn.id
end)
component
in
Handle.show handle;
[%expect {||}];
Handle.do_actions handle [ 1 ];
Handle.flush handle;
[%expect {| ((state1 (Active 1)) (action 1)) |}];
Handle.do_actions handle [ 5 ];
Handle.flush handle;
[%expect {| ((state1 (Active 5)) (action 6)) |}];
Handle.do_actions handle [ 10 ];
Handle.flush handle;
[%expect {| ((state1 (Active 10)) (action 15)) |}]
;;
let%expect_test "pipe" =
let component =
let%sub push_and_pop = Bonsai_extra.pipe (module String) in
return
@@
let%map push, pop = push_and_pop in
let pop s =
let%bind.Bonsai.Effect a = pop in
Ui_effect.print_s [%sexp "pop", (s : string), (a : string)]
in
push, pop
in
let handle =
Handle.create
(module struct
type t = (string -> unit Effect.t) * (string -> unit Effect.t)
type incoming =
[ `Push of string
| `Pop of string
]
let view _ = ""
let incoming (push, pop) = function
| `Push s -> push s
| `Pop s -> pop s
;;
end)
component
in
Handle.do_actions handle [ `Push "hello"; `Pop "a" ];
Handle.flush handle;
[%expect {| (pop a hello) |}];
Handle.do_actions handle [ `Push "world" ];
Handle.flush handle;
[%expect {| |}];
Handle.do_actions handle [ `Pop "b" ];
Handle.flush handle;
[%expect {| (pop b world) |}];
Handle.do_actions handle [ `Pop "c" ];
Handle.flush handle;
[%expect {| |}];
Handle.do_actions handle [ `Push "foo" ];
Handle.flush handle;
[%expect {| (pop c foo) |}];
Handle.do_actions
handle
[ `Push "hello"; `Push "world"; `Push "foo"; `Pop "a"; `Pop "b"; `Pop "c" ];
Handle.flush handle;
[%expect {|
(pop a hello)
(pop b world)
(pop c foo) |}]
;;
let%expect_test "multi-thunk" =
let module Id = Core.Unique_id.Int () in
let id =
Bonsai.Expert.thunk (fun () ->
print_endline "pulling id!";
Id.create ())
in
let component =
let%map.Computation a = id
and b = id in
sprintf "%s %s" (Id.to_string a) (Id.to_string b)
in
let handle = Handle.create (Result_spec.sexp (module String)) component in
Handle.show handle;
[%expect {|
pulling id!
pulling id!
"1 0" |}]
;;
let%expect_test "scope_model" =
let var = Bonsai.Var.create true in
let component =
Bonsai.scope_model
(module Bool)
~on:(Bonsai.Var.value var)
(Bonsai.state (module String) ~default_model:"default")
in
let handle =
Handle.create
(module struct
type t = string * (string -> unit Effect.t)
type incoming = string
let view (s, _) = s
let incoming (_, s) = s
end)
component
in
Handle.show handle;
[%expect {| default |}];
Handle.do_actions handle [ "a" ];
Handle.show handle;
[%expect {| a |}];
Bonsai.Var.set var false;
Handle.show handle;
[%expect {| default |}];
Handle.do_actions handle [ "b" ];
Handle.show handle;
[%expect {| b |}];
Bonsai.Var.set var true;
Handle.show handle;
[%expect {| a |}]
;;
let%expect_test "thunk-storage" =
let module Id = Core.Unique_id.Int () in
let var = Bonsai.Var.create true in
let id =
Bonsai.Expert.thunk (fun () ->
print_endline "pulling id!";
Id.create ())
in
let component =
if%sub Bonsai.Var.value var
then (
let%map.Computation id = id in
Id.to_string id)
else Bonsai.const ""
in
let handle = Handle.create (Result_spec.sexp (module String)) component in
Handle.show handle;
[%expect {|
pulling id!
0 |}];
Bonsai.Var.set var false;
Handle.show handle;
[%expect {| "" |}];
Bonsai.Var.set var true;
Handle.show handle;
[%expect {| 0 |}]
;;
let%expect_test "action dropped in match%sub" =
let component =
let%sub x, set_x = Bonsai.state (module Bool) ~default_model:true in
match%sub x with
| true ->
let%sub (), inject =
Bonsai.state_machine1
(module Unit)
(module Unit)
~default_model:()
~apply_action:(fun ~inject:_ ~schedule_event:_ input () () ->
match input with
| Active () -> print_endline "active"
| Inactive -> print_endline "inactive")
(opaque_const_value ())
in
Bonsai.Edge.lifecycle
~on_activate:
(let%map inject = inject
and set_x = set_x in
let%bind.Effect () = set_x false in
inject ())
()
| false -> Bonsai.const ()
in
let handle = Handle.create (Result_spec.sexp (module Unit)) component in
Handle.show handle;
[%expect {| () |}];
Handle.show handle;
[%expect {|
inactive
() |}]
;;
let%test_module "mirror" =
(module struct
let prepare_test ~store ~interactive =
let store = Bonsai.Var.create store in
let interactive = Bonsai.Var.create interactive in
let store_set =
(fun value ->
printf "store set to \"%s\"" value;
Bonsai.Var.set store value)
|> Ui_effect.of_sync_fun
in
let interactive_set =
(fun value ->
printf "interactive set to \"%s\"" value;
Bonsai.Var.set interactive value)
|> Ui_effect.of_sync_fun
in
let component =
let%sub () =
Bonsai_extra.mirror
(module String)
~store_set:(Bonsai.Value.return store_set)
~interactive_set:(Bonsai.Value.return interactive_set)
~store_value:(Bonsai.Var.value store)
~interactive_value:(Bonsai.Var.value interactive)
in
return
(let%map store = Bonsai.Var.value store
and interactive = Bonsai.Var.value interactive in
sprintf "store: %s, interactive: %s" store interactive)
in
let handle = Handle.create (Result_spec.string (module String)) component in
handle, store, interactive
;;
let%expect_test "starts stable" =
let handle, _store, _interactive = prepare_test ~store:"a" ~interactive:"a" in
Handle.show handle;
[%expect {| store: a, interactive: a |}]
;;
let%expect_test "starts unstable" =
let handle, _store, _interactive = prepare_test ~store:"a" ~interactive:"b" in
Handle.show handle;
[%expect {|
store: a, interactive: b
interactive set to "a" |}];
Handle.show handle;
[%expect {| store: a, interactive: a |}]
;;
let%expect_test "starts stable and then interactive changes" =
let handle, _store, interactive = prepare_test ~store:"a" ~interactive:"a" in
Handle.show handle;
[%expect {| store: a, interactive: a |}];
Bonsai.Var.set interactive "b";
Handle.show handle;
[%expect {|
store: a, interactive: b
store set to "b" |}];
Handle.show handle;
[%expect {| store: b, interactive: b |}]
;;
let%expect_test "starts stable and then store changes" =
let handle, store, _interactive = prepare_test ~store:"a" ~interactive:"a" in
Handle.show handle;
[%expect {| store: a, interactive: a |}];
Bonsai.Var.set store "b";
Handle.show handle;
[%expect {|
store: b, interactive: a
interactive set to "b" |}];
Handle.show handle;
[%expect {| store: b, interactive: b |}]
;;
let%expect_test "starts stable and then both change at the same time" =
let handle, store, interactive = prepare_test ~store:"a" ~interactive:"a" in
Handle.show handle;
[%expect {| store: a, interactive: a |}];
Bonsai.Var.set store "b";
Bonsai.Var.set interactive "c";
Handle.show handle;
[%expect {|
store: b, interactive: c
store set to "c" |}];
Handle.show handle;
[%expect {| store: c, interactive: c |}]
;;
end)
;;
let%test_module "mirror'" =
(module struct
let prepare_test ~store ~interactive =
let store = Bonsai.Var.create store in
let interactive = Bonsai.Var.create interactive in
let store_set =
(fun value ->
printf "store set to \"%s\"" value;
Bonsai.Var.set store (Some value))
|> Ui_effect.of_sync_fun
in
let interactive_set =
(fun value ->
printf "interactive set to \"%s\"" value;
Bonsai.Var.set interactive (Some value))
|> Ui_effect.of_sync_fun
in
let component =
let%sub () =
Bonsai_extra.mirror'
(module String)
~store_set:(Bonsai.Value.return store_set)
~interactive_set:(Bonsai.Value.return interactive_set)
~store_value:(Bonsai.Var.value store)
~interactive_value:(Bonsai.Var.value interactive)
in
let%arr store = Bonsai.Var.value store
and interactive = Bonsai.Var.value interactive in
sprintf
"store: %s, interactive: %s"
(Option.value store ~default:"<none>")
(Option.value interactive ~default:"<none>")
in
let handle = Handle.create (Result_spec.string (module String)) component in
handle, store, interactive
;;
let%expect_test "starts both none" =
let handle, _store, _interactive = prepare_test ~store:None ~interactive:None in
Handle.show handle;
[%expect {| store: <none>, interactive: <none> |}]
;;
let%expect_test "starts interactive some" =
let handle, _store, _interactive =
prepare_test ~store:None ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {|
store: <none>, interactive: hi
store set to "hi" |}];
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts store some" =
let handle, _store, _interactive =
prepare_test ~store:(Some "hi") ~interactive:None
in
Handle.show handle;
[%expect
{|
store: hi, interactive: <none>
interactive set to "hi" |}];
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts both some (same value)" =
let handle, _store, _interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts both some (different values)" =
let handle, _store, _interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hello")
in
Handle.show handle;
[%expect
{|
store: hi, interactive: hello
interactive set to "hi" |}];
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts both none, store set " =
let handle, store, _interactive = prepare_test ~store:None ~interactive:None in
Handle.show handle;
[%expect {| store: <none>, interactive: <none> |}];
Bonsai.Var.set store (Some "hi");
Handle.show handle;
[%expect
{|
store: hi, interactive: <none>
interactive set to "hi" |}];
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts both none, interactive set " =
let handle, _store, interactive = prepare_test ~store:None ~interactive:None in
Handle.show handle;
[%expect {| store: <none>, interactive: <none> |}];
Bonsai.Var.set interactive (Some "hi");
Handle.show handle;
[%expect {|
store: <none>, interactive: hi
store set to "hi" |}];
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts both none, both set to same value" =
let handle, store, interactive = prepare_test ~store:None ~interactive:None in
Handle.show handle;
[%expect {| store: <none>, interactive: <none> |}];
Bonsai.Var.set interactive (Some "hi");
Bonsai.Var.set store (Some "hi");
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts both none, both set to different values" =
let handle, store, interactive = prepare_test ~store:None ~interactive:None in
Handle.show handle;
[%expect {| store: <none>, interactive: <none> |}];
Bonsai.Var.set interactive (Some "hi");
Bonsai.Var.set store (Some "hello");
Handle.show handle;
[%expect {|
store: hello, interactive: hi
store set to "hi" |}];
Handle.show handle;
[%expect {| store: hi, interactive: hi |}]
;;
let%expect_test "starts both some, both set to different values" =
let handle, store, interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {| store: hi, interactive: hi |}];
Bonsai.Var.set interactive (Some "abc");
Bonsai.Var.set store (Some "def");
Handle.show handle;
[%expect {|
store: def, interactive: abc
store set to "abc" |}];
Handle.show handle;
[%expect {| store: abc, interactive: abc |}]
;;
let%expect_test "starts both some (same value), store reset to none" =
let handle, store, _interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {| store: hi, interactive: hi |}];
Bonsai.Var.set store None;
Handle.show handle;
[%expect {| store: <none>, interactive: hi |}]
;;
let%expect_test "starts both some (same value), interactive reset to none" =
let handle, _store, interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {| store: hi, interactive: hi |}];
Bonsai.Var.set interactive None;
Handle.show handle;
[%expect {| store: hi, interactive: <none> |}]
;;
let%expect_test "starts both some (same value), both set to none" =
let handle, store, interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {| store: hi, interactive: hi |}];
Bonsai.Var.set store None;
Bonsai.Var.set interactive None;
Handle.show handle;
[%expect {| store: <none>, interactive: <none> |}]
;;
let%expect_test "starts both some (same value), interactive set to none, both swap" =
let handle, store, interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {| store: hi, interactive: hi |}];
Bonsai.Var.set store None;
Handle.show handle;
[%expect {| store: <none>, interactive: hi |}];
Bonsai.Var.set store (Some "abc");
Bonsai.Var.set interactive None;
Handle.show handle;
[%expect
{|
store: abc, interactive: <none>
interactive set to "abc" |}];
Handle.show handle;
[%expect {| store: abc, interactive: abc |}]
;;
let%expect_test "starts both some (same value), store set to none, both swap" =
let handle, store, interactive =
prepare_test ~store:(Some "hi") ~interactive:(Some "hi")
in
Handle.show handle;
[%expect {| store: hi, interactive: hi |}];
Bonsai.Var.set interactive None;
Handle.show handle;
[%expect {| store: hi, interactive: <none> |}];
Bonsai.Var.set interactive (Some "abc");
Bonsai.Var.set store None;
Handle.show handle;
[%expect {|
store: <none>, interactive: abc
store set to "abc" |}];
Handle.show handle;
[%expect {| store: abc, interactive: abc |}]
;;
end)
;;
let%expect_test "let%arr cutoff destruction" =
let var = Bonsai.Var.create (0, 0) in
let value = Bonsai.Var.value var in
let component =
let%arr a, _ = value in
print_endline "performing work!";
a
in
let handle = Handle.create (Result_spec.string (module Int)) component in
Handle.show handle;
[%expect {|
performing work!
0 |}];
Bonsai.Var.set var (0, 1);
Handle.show handle;
[%expect {| 0 |}];
Bonsai.Var.set var (1, 1);
Handle.show handle;
[%expect {|
performing work!
1 |}]
;;
let%test_module "regression" =
(module struct
module State = struct
type t =
{ a : int
; b : int
; c : int
}
[@@deriving fields]
end
let%expect_test "" =
let state_var = Bonsai.Var.create { State.a = 2; b = 3; c = 4 } in
let state = Bonsai.Var.value state_var in
let a = Value.map state ~f:State.a in
let component b =
let%arr a = a
and b = b in
printf "Recomputing ; a = %d\n" a;
a + b
in
let c = component (Value.map state ~f:State.b) in
let handle = Handle.create (Result_spec.string (module Int)) c in
Handle.show handle;
[%expect {|
Recomputing ; a = 2
5 |}];
Bonsai.Var.update state_var ~f:(fun state -> { state with c = 4 });
Handle.show handle;
[%expect {|
5 |}]
;;
let%expect_test "" =
let state_var = Bonsai.Var.create { State.a = 2; b = 3; c = 4 } in
let state = Bonsai.Var.value state_var in
let a = Value.map state ~f:State.a in
let component b =
let%arr a = a
and b = b in
printf "Recomputing ; a = %d\n" a;
a + b
in
let c = component (Value.return 3) in
let handle = Handle.create (Result_spec.string (module Int)) c in
Handle.show handle;
[%expect {|
Recomputing ; a = 2
5 |}];
Bonsai.Var.update state_var ~f:(fun state -> { state with c = 4 });
Handle.show handle;
[%expect {| 5 |}]
;;
end)
;;
let%expect_test "value_with_override" =
let default_var = Bonsai.Var.create "First Model Value" in
let value = Bonsai.Var.value default_var in
let component = Bonsai_extra.value_with_override (module String) value in
let handle =
Handle.create
(module struct
type t = string * (string -> unit Effect.t)
type incoming = string
let view (s, _) = s
let incoming (_, s) = s
end)
component
in
Handle.show handle;
[%expect {| First Model Value |}];
Bonsai.Var.set default_var "Second Model Value";
Handle.show handle;
[%expect {| Second Model Value |}];
Handle.do_actions handle [ "First Override" ];
Handle.show handle;
[%expect {| First Override |}];
Bonsai.Var.set default_var "Third Model Value";
Handle.show handle;
[%expect {| First Override |}];
Handle.do_actions handle [ "Second Override" ];
Handle.show handle;
[%expect {| Second Override |}]
;;
let%expect_test "value_with_override in resetter" =
let default_var = Bonsai.Var.create "First Model Value" in
let handle =
let value = Bonsai.Var.value default_var in
let component =
Bonsai.with_model_resetter (Bonsai_extra.value_with_override (module String) value)
in
Handle.create
(module struct
type t = (string * (string -> unit Effect.t)) * unit Effect.t
type incoming =
[ `Override of string
| `Reset
]
let view ((s, _), _) = s
let incoming ((_, override), reset) action =
match action with
| `Override s -> override s
| `Reset -> reset
;;
end)
component
in
Handle.show handle;
[%expect {| First Model Value |}];
Bonsai.Var.set default_var "Second Model Value";
Handle.show handle;
[%expect {| Second Model Value |}];
Handle.do_actions handle [ `Override "First Override" ];
Handle.show handle;
[%expect {| First Override |}];
Bonsai.Var.set default_var "Third Model Value";
Handle.show handle;
[%expect {| First Override |}];
Handle.do_actions handle [ `Reset ];
Handle.show handle;
[%expect {| Third Model Value |}];
Handle.do_actions handle [ `Override "Second Override" ];
Handle.show handle;
[%expect {| Second Override |}]
;;
let%expect_test "ordering behavior of skeleton traversal" =
let all_values =
[ Value.return ()
; Bonsai.Var.value (Bonsai.Var.create ())
; Value.cutoff (Value.return ()) ~equal:phys_equal
; Value.map (Value.both (Value.return ()) (Value.return ())) ~f:(fun ((), ()) -> ())
]
|> List.reduce_exn ~f:(Value.map2 ~f:(fun () () -> ()))
in
let c =
let%sub v = return all_values in
let%sub c1 =
Bonsai.state_machine1
(module Unit)
(module Unit)
~default_model:()
v
~apply_action:
(fun
~inject:_ ~schedule_event:_ (_ : unit Bonsai.Computation_status.t) () () ->
())
in
let%sub c2 = Bonsai.state (module Unit) ~default_model:() in
let%sub c3 =
Bonsai.assoc
(module Unit)
(Value.return Unit.Map.empty)
~f:(fun _ _ -> Bonsai.const ())
in
let%sub c4 =
match%sub v with
| () -> Bonsai.const ()
in
let%arr () = v
and (), _ = c1
and (), _ = c2
and _ = c3
and () = c4 in
()
in
let skeleton =
Bonsai.Private.Skeleton.Computation.of_computation
(Bonsai.Private.reveal_computation c)
in
let pre_order_printer =
object
inherit Bonsai.Private.Skeleton.Traverse.map as super
method! value value =
printf "value - ";
print_s [%message "" ~_:(Lazy.force value.node_path : Bonsai.Private.Node_path.t)];
super#value value
method! computation computation =
printf "computation - ";
print_s
[%message "" ~_:(Lazy.force computation.node_path : Bonsai.Private.Node_path.t)];
super#computation computation
end
in
pre_order_printer#computation skeleton
|> (ignore : Bonsai.Private.Skeleton.Computation.t -> unit);
[%expect
{|
computation - _1
computation - 1_1
value - 1_2
value - 1-1_1
value - 1-1-1_1
value - 1-1-1-1_1
value - 1-1-1-2_1
value - 1-1-2_1
value - 1-1-2-1_1
value - 1-2_1
value - 1-2-1_1
value - 1-2-1-1_1
value - 1-2-1-2_1
computation - 2_1
computation - 2-1_1
value - 2-1_2
computation - 2-2_1
computation - 2-2-1_1
computation - 2-2-2_1
computation - 2-2-2-1_1
value - 2-2-2-1-1_1
computation - 2-2-2-1-2_1
value - 2-2-2-1-2_2
computation - 2-2-2-2_1
computation - 2-2-2-2-1_1
computation - 2-2-2-2-1-1_1
value - 2-2-2-2-1-1_2
value - 2-2-2-2-1-1-1_1
computation - 2-2-2-2-1-2_1
value - 2-2-2-2-1-2_2
computation - 2-2-2-2-2_1
value - 2-2-2-2-2_2
value - 2-2-2-2-2-1_1
value - 2-2-2-2-2-1-1_1
value - 2-2-2-2-2-1-2_1
value - 2-2-2-2-2-1-2-1_1
value - 2-2-2-2-2-1-2-1-1_1
value - 2-2-2-2-2-1-2-2_1
value - 2-2-2-2-2-1-2-2-1_1
value - 2-2-2-2-2-1-2-2-1-1_1
value - 2-2-2-2-2-1-2-2-2_1
value - 2-2-2-2-2-1-2-2-2-1_1
value - 2-2-2-2-2-1-2-2-2-1-1_1
value - 2-2-2-2-2-1-2-2-2-2_1 |}]
;;
let%expect_test "on_activate lifecycle events are run the second frame after the \
component becomes active"
=
let input_var = Bonsai.Var.create () in
let active_var = Bonsai.Var.create true in
let component =
let%sub (), inject =
Bonsai.state_machine1
(module Unit)
(module Unit)
~default_model:()
~apply_action:
(fun
~inject:_ ~schedule_event:_ (_ : unit Bonsai.Computation_status.t) () () ->
print_endline "on_activate")
(Bonsai.Var.value input_var)
in
let%sub on_activate =
let%arr inject = inject in
inject ()
in
Bonsai.Edge.lifecycle ~on_activate ()
in
let handle =
Handle.create
(Result_spec.sexp (module Unit))
(if%sub Bonsai.Var.value active_var then component else component)
in
Handle.recompute_view handle;
[%expect {| |}];
Handle.recompute_view handle;
[%expect {| on_activate |}];
Bonsai.Var.set active_var false;
Handle.recompute_view handle;
[%expect {| |}];
Bonsai.Var.set active_var true;
Handle.recompute_view handle;
[%expect {|
on_activate |}]
;;
let%expect_test "State machine actions that are scheduled while running the actions for \
a frame are run on the same frame"
=
let component =
Bonsai.state_machine0
(module Unit)
(module Int)
~default_model:()
~apply_action:(fun ~inject ~schedule_event () n ->
print_s [%message (n : int)];
if n <= 0 then () else schedule_event (inject (n - 1)))
in
let handle =
Handle.create
(module struct
type t = unit * (int -> unit Effect.t)
type incoming = int
let view _ = ""
let incoming ((), inject) n = inject n
end)
component
in
Handle.do_actions handle [ 10 ];
[%expect {| |}];
Handle.flush handle;
[%expect
{|
(n 10)
(n 9)
(n 8)
(n 7)
(n 6)
(n 5)
(n 4)
(n 3)
(n 2)
(n 1)
(n 0) |}]
;;
let%expect_test "Bonsai.previous_value" =
let input_var = Bonsai.Var.create 0 in
let active_var = Bonsai.Var.create true in
let component =
match%sub Bonsai.Var.value active_var with
| true -> Bonsai.previous_value (module Int) (Bonsai.Var.value input_var)
| false -> Bonsai.const None
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = int option [@@deriving sexp, equal]
end))
component
in
Handle.show handle;
[%expect {| () |}];
Handle.show handle;
[%expect {| (0) |}];
Bonsai.Var.set input_var 1;
Handle.show handle;
[%expect {| (0) |}];
Bonsai.Var.set input_var 2;
Handle.show handle;
[%expect {| (1) |}];
Handle.show handle;
[%expect {| (2) |}];
Bonsai.Var.set active_var false;
Handle.show handle;
[%expect {| () |}];
Bonsai.Var.set input_var 3;
Handle.show handle;
[%expect {| () |}];
Bonsai.Var.set active_var true;
Handle.show handle;
[%expect {| (2) |}];
Handle.show handle;
[%expect {| (3) |}]
;;
let%expect_test "most_recent_some" =
let var = Bonsai.Var.create 1 in
let active = Bonsai.Var.create true in
let component =
match%sub Bonsai.Var.value active with
| true ->
Bonsai.most_recent_some
(module Int)
(Bonsai.Var.value var)
~f:(fun x -> if x mod 2 = 0 then Some x else None)
| false -> Bonsai.const None
in
let handle =
Handle.create
(Result_spec.sexp
(module struct
type t = int option [@@deriving sexp]
end))
component
in
Handle.show handle;
[%expect {| () |}];
Bonsai.Var.set var 2;
Handle.show handle;
[%expect {| (2) |}];
Handle.show handle;
[%expect {| (2) |}];
Bonsai.Var.set active false;
Handle.show handle;
[%expect {| () |}];
Bonsai.Var.set active true;
Handle.show handle;
[%expect {| (2) |}];
Bonsai.Var.set active false;
Handle.show handle;
[%expect {| () |}];
Bonsai.Var.set var 6;
Handle.show handle;
[%expect {| () |}];
Bonsai.Var.set active true;
Handle.show handle;
[%expect {| (6) |}]
;;