ligo/test/test_data_encoding.ml
2017-01-23 21:31:30 +01:00

319 lines
9.8 KiB
OCaml

open Data_encoding
open Context
open Hash
let (>>=) = Lwt.bind
let (>|=) = Lwt.(>|=)
let (//) = Filename.concat
let write_file dir ~name content =
let file = (dir // name) in
let oc = open_out file in
output_string oc content ;
close_out oc ;
file
let is_invalid_arg = function
| Invalid_argument _ -> true
| _ -> false
let test_simple_json ?msg ?eq:(equal=Assert.equal) encoding value =
let json = Json.construct encoding value in
let result = Json.destruct encoding json in
equal ?msg value result
let test_simple_bin ?msg ?(equal=Assert.equal) encoding value =
let bin = Binary.to_bytes encoding value in
let opt = Binary.of_bytes encoding bin in
Assert.is_some ?msg opt;
let result = match opt with None -> assert false | Some v -> v in
equal ?msg value result
let test_json_exn ?msg encoding value fail =
let get_result () =
let bin = Json.construct encoding value in
Json.destruct encoding bin in
Assert.test_fail ?msg get_result fail
let test_bin_exn ?msg encoding value fail =
let get_result () =
let bin = Binary.to_bytes encoding value in
Binary.of_bytes encoding bin in
Assert.test_fail ?msg get_result fail
let test_simple ~msg enc value =
test_simple_json ~msg:(msg ^ ": json") enc value ;
test_simple_bin ~msg:(msg ^ ": binary") enc value
let test_simple_exn ~msg enc value =
test_json_exn ~msg:(msg ^ ": json") enc value (fun _ -> true) ;
test_bin_exn ~msg:(msg ^ ": json") enc value (fun _ -> true)
let test_simple_int ~msg encoding i =
let range_min = - (1 lsl (i-1)) in
let range_max = (1 lsl (i-1)) - 1 in
let out_max = (1 lsl (i-1)) in
let out_min = - (1 lsl (i-1)) - 1 in
test_simple ~msg encoding range_min ;
test_simple ~msg encoding range_max ;
test_simple_exn ~msg encoding out_max ;
test_simple_exn ~msg encoding out_min
let test_simple_uint ~msg encoding i =
let range_min = 0 in
let range_max = (1 lsl i) - 1 in
let out_max = 1 lsl i in
let out_min = - 1 in
test_simple ~msg encoding range_min ;
test_simple ~msg encoding range_max ;
test_simple_exn ~msg encoding out_max ;
test_simple_exn ~msg encoding out_min
let test_simple_values _ =
test_simple ~msg:__LOC__ null ();
test_simple ~msg:__LOC__ empty ();
test_simple ~msg:__LOC__ (constant "toto") ();
test_simple_int ~msg:__LOC__ int8 8;
test_simple_uint ~msg:__LOC__ uint8 8;
test_simple_int ~msg:__LOC__ int16 16;
test_simple_uint ~msg:__LOC__ uint16 16;
test_simple_int ~msg:__LOC__ int31 31;
test_simple ~msg:__LOC__ int32 Int32.min_int;
test_simple ~msg:__LOC__ int32 Int32.max_int;
test_simple ~msg:__LOC__ int64 Int64.min_int;
test_simple ~msg:__LOC__ int64 Int64.max_int;
test_simple ~msg:__LOC__ bool true;
test_simple ~msg:__LOC__ bool false;
test_simple ~msg:__LOC__ string "tutu";
test_simple ~msg:__LOC__ bytes (MBytes.of_string "titi");
test_simple ~msg:__LOC__ float 42.;
test_simple ~msg:__LOC__ (option string) (Some "thing");
test_simple ~msg:__LOC__ (option string) None;
let enum_enc =
["one", 1; "two", 2; "three", 3; "four", 4; "five", 6; "six", 6] in
test_simple_bin ~msg:__LOC__ (string_enum enum_enc) 4;
test_json_exn ~msg:__LOC__ (string_enum enum_enc) 7 is_invalid_arg ;
test_bin_exn ~msg:__LOC__ (string_enum enum_enc) 7
(function
| No_case_matched -> true
| _ -> false) ;
(* Should fail *)
(* test_bin_exn ~msg:__LOC__ (string_enum ["a", 1; "a", 2]) 2 (...duplicatate...); *)
(* test_json_exn ~msg:__LOC__ (string_enum ["a", 1; "a", 2]) 1 (... duplicate...); *)
Lwt.return_unit
let test_json testdir =
let open Data_encoding_ezjsonm in
let file = testdir // "testing_data_encoding.tezos" in
let v = `Float 42. in
let f_str = to_string v in
Assert.equal_string ~msg:__LOC__ f_str "[\n 42\n]";
read_file (testdir // "NONEXISTINGFILE") >>= fun rf ->
Assert.is_error ~msg:__LOC__ rf ;
write_file file v >>= fun success ->
Assert.is_ok ~msg:__LOC__ success ;
read_file file >>= fun opt ->
Assert.is_ok ~msg:__LOC__ opt ;
Lwt.return ()
type t = A of int | B of string | C of int | D of string | E
let prn_t = function
| A i -> Printf.sprintf "A %d" i
| B s -> Printf.sprintf "B %s" s
| C i -> Printf.sprintf "C %d" i
| D s -> Printf.sprintf "D %s" s
| E -> "E"
let test_tag_errors _ =
let duplicate_tag () =
union [
case ~tag:1
int8
(fun i -> i)
(fun i -> Some i) ;
case ~tag:1
int8
(fun i -> i)
(fun i -> Some i)] in
Assert.test_fail ~msg:__LOC__ duplicate_tag
(function Duplicated_tag _ -> true
| _ -> false) ;
let invalid_tag () =
union [
case ~tag:(2 lsl 7)
int8
(fun i -> i)
(fun i -> Some i)] in
Assert.test_fail ~msg:__LOC__ invalid_tag
(function (Invalid_tag (_, `Uint8)) -> true
| _ -> false) ;
Lwt.return_unit
let test_union _ =
let enc =
(union [
case ~tag:1
int8
(function A i -> Some i | _ -> None)
(fun i -> A i) ;
case ~tag:2
string
(function B s -> Some s | _ -> None)
(fun s -> B s) ;
case ~tag:3
int8
(function C i -> Some i | _ -> None)
(fun i -> C i) ;
case ~tag:4
(obj2
(req "kind" (constant "D"))
(req "data" (string)))
(function D s -> Some ((), s) | _ -> None)
(fun ((), s) -> D s) ;
]) in
let jsonA = Json.construct enc (A 1) in
let jsonB = Json.construct enc (B "2") in
let jsonC = Json.construct enc (C 3) in
let jsonD = Json.construct enc (D"4") in
Assert.test_fail
~msg:__LOC__ (fun () -> Json.construct enc E) is_invalid_arg ;
Assert.equal ~prn:prn_t ~msg:__LOC__ (A 1) (Json.destruct enc jsonA) ;
Assert.equal ~prn:prn_t ~msg:__LOC__ (B "2") (Json.destruct enc jsonB) ;
Assert.equal ~prn:prn_t ~msg:__LOC__ (A 3) (Json.destruct enc jsonC) ;
Assert.equal ~prn:prn_t ~msg:__LOC__ (D "4") (Json.destruct enc jsonD) ;
let binA = Binary.to_bytes enc (A 1) in
let binB = Binary.to_bytes enc (B "2") in
let binC = Binary.to_bytes enc (C 3) in
let binD = Binary.to_bytes enc (D "4") in
Assert.test_fail ~msg:__LOC__ (fun () -> Binary.to_bytes enc E)
(function
| No_case_matched -> true
| _ -> false) ;
let get_result ~msg bin =
match Binary.of_bytes enc bin with
| None -> Assert.fail_msg "%s" msg
| Some bin -> bin in
Assert.equal ~prn:prn_t ~msg:__LOC__ (A 1) (get_result ~msg:__LOC__ binA) ;
Assert.equal ~prn:prn_t ~msg:__LOC__ (B "2") (get_result ~msg:__LOC__ binB) ;
Assert.equal ~prn:prn_t ~msg:__LOC__ (C 3) (get_result ~msg:__LOC__ binC) ;
Assert.equal ~prn:prn_t ~msg:__LOC__ (D "4") (get_result ~msg:__LOC__ binD) ;
Lwt.return_unit
type s = { field : int }
let test_splitted _ =
let s_enc =
def "s" @@
describe
~title:"testsuite encoding test"
~description: "A human readable description" @@
conv
(fun s -> string_of_int s.field)
(fun s -> { field = int_of_string s })
string in
let enc =
(splitted
~binary:string
~json:
(union [
case ~tag:1
string
(fun _ -> None)
(fun s -> s) ;
case ~tag:2
s_enc
(fun s -> Some { field = int_of_string s })
(fun s -> string_of_int s.field) ;
])) in
let get_result ~msg bin =
match Binary.of_bytes enc bin with
| None -> Assert.fail_msg "%s: Cannot parse." msg
| Some bin -> bin in
let jsonA = Json.construct enc "41" in
let jsonB = Json.construct s_enc {field = 42} in
let binA = Binary.to_bytes enc "43" in
let binB = Binary.to_bytes s_enc {field = 44} in
Assert.equal ~msg:__LOC__ "41" (Json.destruct enc jsonA);
Assert.equal ~msg:__LOC__ "42" (Json.destruct enc jsonB);
Assert.equal ~msg:__LOC__ "43" (get_result ~msg:__LOC__ binA);
Assert.equal ~msg:__LOC__ "44" (get_result ~msg:__LOC__ binB);
Lwt.return_unit
let test_json_input testdir =
let enc =
obj1
(req "menu" (
obj3
(req "id" string)
(req "value" string)
(opt "popup" (
obj2
(req "width" int64)
(req "height" int64))))) in
begin
let file =
write_file testdir ~name:"good.json" {|
{
"menu": {
"id": "file",
"value": "File",
"popup": {
"width" : 42,
"height" : 52
}
}
}
|}
in
Data_encoding_ezjsonm.read_file file >>= function
| Error _ -> Assert.fail_msg "Cannot parse \"good.json\"."
| Ok json ->
let (id, value, popup) = Json.destruct enc json in
Assert.equal_string ~msg:__LOC__ "file" id;
Assert.equal_string ~msg:__LOC__ "File" value;
Assert.is_some ~msg:__LOC__ popup;
let w,h = match popup with None -> assert false | Some (w,h) -> w,h in
Assert.equal_int64 ~msg:__LOC__ 42L w;
Assert.equal_int64 ~msg:__LOC__ 52L h;
Lwt.return_unit
end >>= fun () ->
let enc =
obj2
(req "kind" (string))
(req "data" (int64)) in
begin
let file =
write_file testdir ~name:"unknown.json" {|
{
"kind" : "int64",
"data" : "42",
"unknown" : 2
}
|}
in
Data_encoding_ezjsonm.read_file file >>= function
| Error _ -> Assert.fail_msg "Cannot parse \"unknown.json\"."
| Ok json ->
Assert.test_fail ~msg:__LOC__
(fun () -> ignore (Json.destruct enc json))
(function
| Json.Unexpected_field "unknown" -> true
| _ -> false) ;
Lwt.return_unit
end
let tests = [
"simple", test_simple_values ;
"json", test_json ;
"union", test_union ;
"splitted", test_splitted ;
"json.input", test_json_input ;
"tags", test_tag_errors ;
]
let () =
Test.run "data_encoding." tests