lambdaTests.ml

open OUnit2
open Camlp4.PreCast 

(* Typed -> Lambda *)
let run_test_compile msg expected totest =
  let aux str =
    try
      let expr = Parse.ExprParser.of_string_no_file str in
      let env, texpr = Compute.to_typed expr in
      Format.printf "Computed Typed -> %s%!@." (Printer.typed_to_string texpr);
      let lambdaexpr = Compile.compile env texpr in
      Printer.lambda_to_string lambdaexpr
    with
      | Compute.Error -> exit 3
      | Loc.Exc_located (loc, exn) ->
	let l = Loc.start_line loc in
	let cbegin = Loc.start_off loc - Loc.start_bol loc in
	let cend = Loc.stop_off loc - Loc.start_bol loc in
	Printf.eprintf "File %s, line %d, characters %d-%d:\n" (Loc.file_name loc) l
	  cbegin cend; raise exn
      | e -> Printf.eprintf "Runtime error.\n"; raise e
  in
  fun _ -> assert_equal ~msg:msg ~printer:(fun x -> x) expected (aux totest)

let tests_poly_abstr = [
  "Test CDuce.lambda.const_abstr failed",
  "Abstraction(Dummy,,,,Sel(,(Int -> Int),{}))",
  "fun f x : Int : Int -> 2";

  "Test CDuce.lambda.poly.identity failed",
  "Abstraction(Dummy,,,,Sel(,([ Char* ] | Int -> [ Char* ] | Int),Comp({},{ { `$A = 
Int } ,{ `$A = [ Char* ]
 } })))",
  "(fun f x : 'A[{A/Int},{A/String}] : 'A[{A/Int},{A/String}] -> x) [{A/Int},{A/String}]";

  "Test CDuce.runtime.poly.tail failed",
  "Abstraction(Dummy,,,,Sel(,([ (`$A & Int | Char | Atom | (Any,Any) |
                             <(Any) (Any)>Any | Arrow)* ] -> [ (`$A & Int |
                                                               Char | 
                                                               Atom |
                                                               (Any,Any) |
                                                               <(Any) (Any)>Any |
                                                               Arrow)* ]),{}))",
  "fun tail x : ['A[{}]] : ['A[{}]] -> match x : ['A[{}]] with | (el : 'A[{}]) :: (rest : ['A[{}]]) -> rest";

  "Test CDuce.runtime.poly.pair failed", "Abstraction(Dummy,,,,Sel(,((`$A & Int | Char | Atom | (Any,Any) |
                           <(Any) (Any)>Any | Arrow,`$B & Int | Char | 
                           Atom | (Any,Any) | <(Any) (Any)>Any | Arrow) -> 
`$A & Int | Char | Atom | (Any,Any) | <(Any) (Any)>Any | Arrow),{}))",
  "fun pair x : ('A[{}] * 'B[{}]) : 'A[{}] -> match x : ('A[{}] * 'B[{}]) with | (z : 'A[{}], y : 'B[{}]) -> z";

  "Test CDuce.runtime.poly.match_abstr failed", "Apply(Match(Abstraction(Dummy,,,,Sel(,(`$A & Int | Char | Atom | (Any,Any) |
                                       <(Any) (Any)>Any | Arrow -> `$A & Int |
                                                                   Char |
                                                                   Atom |
                                                                   (Any,Any) |
                                                                   <(Any) (Any)>Any |
                                                                   Arrow),{})), {accept_chars=false; brs_disp=<disp>; brs_rhs=[| (2, TVar(Local(0),Comp({},{ { `$A = 
Int
 } }))) |]; brs_stack_pos=0}),Const(3))",
  "(match (fun f x : 'A[{}] : 'A[{}] -> x) : ('A[{}] -> 'A[{}]) with | y : ('A[{}] -> 'A[{}]) -> y[{A/Int}]).3";



]

let tests_poly_abstr = [
  "Test CDuce.lambda.const_abstr failed",
  "Abstraction(Dummy,,,,Sel((Int -> Int),{}))",
  "fun f x : 'A[{A/Int}] : 'A[{A/Int}] -> 2";

  "Test CDuce.lambda.const_abstr failed",
  "Abstraction(Dummy,,,,Sel(,(Int -> Int),{}))",
  "fun f x : Int : Int -> 2";
];;

let tests_compile = "CDuce compile tests (Typed -> Lambda )" >:::
  List.map (fun (m,e,f) -> f >:: run_test_compile m e f) tests_poly_abstr

(* Typed -> Lambda -> Value *)
let run_test_eval str =
  try
    let expr = Parse.ExprParser.of_string_no_file str in
    let env, texpr = Compute.to_typed expr in
    let evalexpr = Compile.compile_eval_expr env texpr in
    Printer.value_to_string evalexpr
  with
    | Compute.Error -> exit 3
    | Loc.Exc_located (loc, exn) ->
      let l = Loc.start_line loc in
      let cbegin = Loc.start_off loc - Loc.start_bol loc in
      let cend = Loc.stop_off loc - Loc.start_bol loc in
      Printf.eprintf "File %s, line %d, characters %d-%d:\n" (Loc.file_name loc)
	l cbegin cend; raise exn
    | e -> Printf.eprintf "Runtime error.\n"; raise e

let tests_eval = "CDuce runtime tests (Typed -> Lambda -> Value)" >:::
  [
    "abstr" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.abstr.let_simple failed"
	~printer:(fun x -> x) "3"
	(run_test_eval "let x : Int = 3 in x : Int");
      assert_equal ~msg:"Test CDuce.runtime.abstr.let_medium failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "let f : (Int -> Int) = (fun (Int -> Int) | x : Int -> x)
                        in (f.f.2) : Int");
      assert_equal ~msg:"Test CDuce.runtime.abstr.let_nested_simple failed"
	~printer:(fun x -> x) "3"
	(run_test_eval "let f : (Int -> Int) = (fun (Int -> Int) | x : Int -> x + 1)
                        in (let x : Int = f.2
                            in x : Int) : Int");
      assert_equal ~msg:"Test CDuce.runtime.abstr.let_nested_medium failed"
	~printer:(fun x -> x) "4"
	(run_test_eval "let f : (Int -> Int) = (fun (Int -> Int) | x : Int -> x + 1)
                        in (let x : Int = f.2
                            in f.x : Int) : Int");
      assert_equal ~msg:"Test CDuce.runtime.abstr.simple failed"
	~printer:(fun x -> x) "Abstraction((Int, Int),{})"
	(run_test_eval "fun f x : Int : Int -> 2");
      assert_equal ~msg:"Test CDuce.runtime.abstr.medium failed"
	~printer:(fun x -> x)
	"Abstraction((Int, [ Char* ] -> [ Int Char* ]),{})"
	(run_test_eval "fun f x : Int y : String : (Int*String) -> x,y");
    );

    "apply" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.apply.simple failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "(fun f x : Int : Int -> x).2");
      assert_equal ~msg:"Test CDuce.runtime.apply.simple_pair failed"
	~printer:(fun x -> x) "(3, 2, {})"
	(run_test_eval "(fun f x : (Int*Int) : (Int*Int) -> x).(3,2)");
      assert_equal ~msg:"Test CDuce.runtime.apply.medium failed"
	~printer:(fun x -> x) "(2, 3, {})"
	(run_test_eval "((fun f x : Int y : Int : (Int*Int) -> x,y).2).3");
    );

    "misc" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.misc.even failed"
	~printer:(fun x -> x)
	"Abstraction((Int, Bool) ,(Any \\ (Int), Any \\ (Int)),{})"
	(run_test_eval "fun ((Int -> Bool) & ((!Int) -> (!Int)))
                          | x : Int -> (match (x % 2) : Int with
                                          | 0 -> `true
                                          | 1 -> `false)
                          | x : (!Int) -> x");
      assert_equal ~msg:"Test CDuce.runtime.misc.even_applied1 failed"
	~printer:(fun x -> x)
	"Atom(false)"
	(run_test_eval "(fun ((Int -> Bool) & ((!Int) -> (!Int)))
                          | x : Int -> (match (x % 2) : Int with
                                          | 0 -> `true
                                          | 1 -> `false)
                          | x : (!Int) -> x).5");
      assert_equal ~msg:"Test CDuce.runtime.misc.even_applied2 failed"
	~printer:(fun x -> x)
	"Atom(true)"
	(run_test_eval "(fun ((Int -> Bool) & ((!Int) -> (!Int)))
                          | x : Int -> (match (x % 2) : Int with
                                          | 0 -> `true
                                          | 1 -> `false)
                          | x : (!Int) -> x).8");
      assert_equal ~msg:"Test CDuce.runtime.misc.even_applied3 failed"
	~printer:(fun x -> x)
	"(2, (3, Atom(nil), {}), {})"
	(run_test_eval "(fun ((Int -> Bool) & ((!Int) -> (!Int)))
                          | x : Int -> (match (x % 2) : Int with
                                          | 0 -> `true
                                          | 1 -> `false)
                          | x : (!Int) -> x).[2; 3]");
      assert_equal ~msg:"Test CDuce.runtime.misc.is_int failed"
	~printer:(fun x -> x)
	"Abstraction((Int, Bool) ,(Bool, Bool) ,(Any \\ (Int | Bool), Any \\ (Int | Bool)),{})"
	(run_test_eval "fun ((Int -> Bool) & (Bool -> Bool) & ((!(Int|Bool)) -> (!(Int|Bool))))
                          | x : Int -> `true
                          | x : Bool -> `false
                          | x : (!(Int|Bool)) -> x");
      assert_equal ~msg:"Test CDuce.runtime.misc.is_int_applied1 failed"
	~printer:(fun x -> x)
	"Atom(true)"
	(run_test_eval "(fun ((Int -> Bool) & (Bool -> Bool) & ((!(Int|Bool)) -> (!(Int|Bool))))
                           | x : Int -> `true
                           | x : Bool -> `false
                           | x : (!(Int|Bool)) -> x).2");
      assert_equal ~msg:"Test CDuce.runtime.misc.is_int_applied2 failed"
	~printer:(fun x -> x)
	"Atom(false)"
	(run_test_eval "(fun ((Int -> Bool) & (Bool -> Bool) & ((!(Int|Bool)) -> (!(Int|Bool))))
                           | x : Int -> `true
                           | x : Bool -> `false
                           | x : (!(Int|Bool)) -> x).`true");
      assert_equal ~msg:"Test CDuce.runtime.misc.is_int_applied3 failed"
	~printer:(fun x -> x)
	"(2, (3, Atom(nil), {}), {})"
	(run_test_eval "(fun ((Int -> Bool) & (Bool -> Bool) & ((!(Int|Bool)) -> (!(Int|Bool))))
                           | x : Int -> `true
                           | x : Bool -> `false
                           | x : (!(Int|Bool)) -> x).[2; 3]");
      assert_equal ~msg:"Test CDuce.runtime.misc.map failed"
	~printer:(fun x -> x)
	"Abstraction(((`$A & Int | Char | Atom | (Any,Any) | <(Any) (Any)>Any | Arrow) -> 
             (`$B & Int | Char | Atom | (Any,Any) | <(Any) (Any)>Any | 
             Arrow), [ (`$A & Int | Char | Atom | (Any,Any) |
                       <(Any) (Any)>Any | Arrow)* ] -> [ (`$B & Int | 
                                                         Char | Atom |
                                                         (Any,Any) |
                                                         <(Any) (Any)>Any |
                                                         Arrow)* ]),{})"
	(run_test_eval "fun map f : ('A[{}]->'B[{}]) x : ['A[{}]] : ['B[{}]] ->
                          match x : ['A[{}]] with
                            | (el : 'A[{}]) :: [] -> f.el
                            | (el : 'A[{}]) :: (rest : ['A[{}]]) -> ((f.el), ((map.f).rest))");
      assert_equal ~msg:"Test CDuce.runtime.misc.map_even_simple failed"
	~printer:(fun x -> x)
	"(\"hey\", (Atom(false), Atom(nil), {}), {})"
	(run_test_eval "(fun map f : ('A[{A/Int},{A/Bool}]->'B[{A/Int},{A/Bool}]) x : ['A[{A/Int},{A/Bool}]] : ['B[{A/Int},{A/Bool}]] ->
                          match x : ['A[{A/Int},{A/Bool}]] with
                            | (el : 'A[{A/Int},{A/Bool}]) :: (rest : ['A[{A/Int},{A/Bool}]]) -> ((f.el), ((map.f).rest))
                            | [] -> []).(fun ((Int -> Bool) & ((!Int) -> (!Int)))
                          | x : Int -> (match (x % 2) : Int with
                                          | 0 -> `true
                                          | 1 -> `false)
                          | x : (!Int) -> x).[\"hey\"; 3]");
      assert_equal ~msg:"Test CDuce.runtime.misc.map_even_medium failed"
	~printer:(fun x -> x)
	"(Atom(true), (\"hey\", (Atom(false), (Atom(true), Atom(nil), {}), {}), {}), {})"
	(run_test_eval "(fun map f : ('A[{A/Int},{A/Bool}]->'B[{A/Int},{A/Bool}]) x : ['A[{A/Int},{A/Bool}]] : ['B[{A/Int},{A/Bool}]] ->
                          match x : ['A[{A/Int},{A/Bool}]] with
                            | (el : 'A[{A/Int},{A/Bool}]) :: (rest : ['A[{A/Int},{A/Bool}]]) -> ((f.el), ((map.f).rest))
                            | [] -> []).(fun ((Int -> Bool) & ((!Int) -> (!Int)))
                          | x : Int -> (match (x % 2) : Int with
                                          | 0 -> `true
                                          | 1 -> `false)
                          | x : (!Int) -> x).[4; \"hey\"; 3; 2]");
      assert_equal ~msg:"Test CDuce.runtime.misc.map_even_hard failed"
	~printer:(fun x -> x)
	"(Atom(true), (\"hey\", ((3, (5, Atom(nil), {}), {}), (Atom(true), (Abstraction((
`$C & Int | Char | Atom | (Any,Any) | <(Any) (Any)>Any | Arrow, `$C & Int |
                                                                Char | 
                                                                Atom |
                                                                (Any,Any) |
                                                                <(Any) (Any)>Any |
                                                                Arrow),{}), (Atom(false), Atom(nil), {}), {}), {}), {}), {}), {})"
	(run_test_eval "(fun map f : ('A[{A/Int},{A/Bool}]->'B[{A/Int},{A/Bool}]) x : ['A[{A/Int},{A/Bool}]] : ['B[{A/Int},{A/Bool}]] ->
                          match x : ['A[{A/Int},{A/Bool}]] with
                            | (el : 'A[{A/Int},{A/Bool}]) :: (rest : ['A[{A/Int},{A/Bool}]]) -> ((f.el), ((map.f).rest))
                            | [] -> []).(fun ((Int -> Bool) & ((!Int) -> (!Int)))
                          | x : Int -> (match (x % 2) : Int with
                                          | 0 -> `true
                                          | 1 -> `false)
                          | x : (!Int) -> x).[4; \"hey\"; [3; 5]; 2; (fun ('C[{}] -> 'C[{}]) | x : 'C[{}] -> x); 3+4]");
      assert_equal ~msg:"Test CDuce.runtime.misc.map_is_int_simple failed"
	~printer:(fun x -> x)
	"(Atom(false), (Atom(true), Atom(nil), {}), {})"
	(run_test_eval "(fun map f : ('A[{A/Int},{A/Bool}]->'B[{A/Int},{A/Bool}]) x : ['A[{A/Int},{A/Bool}]] : ['B[{A/Int},{A/Bool}]] ->
                          match x : ['A[{A/Int},{A/Bool}]] with
                            | (el : 'A[{A/Int},{A/Bool}]) :: (rest : ['A[{A/Int},{A/Bool}]]) -> ((f.el), ((map.f).rest))
                            | [] -> []).(fun ((Int -> Bool) & (Bool -> Bool) & ((!(Int|Bool)) -> (!(Int|Bool))))
                          | x : Int -> `true
                          | x : Bool -> `false
                          | x : (!(Int|Bool)) -> x).[`true; 3]");
      assert_equal ~msg:"Test CDuce.runtime.misc.map_is_int_medium failed"
	~printer:(fun x -> x)
	"(Atom(false), (Atom(true), (Atom(false), Atom(nil), {}), {}), {})"
	(run_test_eval "(fun map f : ('A[{A/Int},{A/Bool}]->'B[{A/Int},{A/Bool}]) x : ['A[{A/Int},{A/Bool}]] : ['B[{A/Int},{A/Bool}]] ->
                          match x : ['A[{A/Int},{A/Bool}]] with
                            | (el : 'A[{A/Int},{A/Bool}]) :: (rest : ['A[{A/Int},{A/Bool}]]) -> ((f.el), ((map.f).rest))
                            | [] -> []).(fun ((Int -> Bool) & (Bool -> Bool) & ((!(Int|Bool)) -> (!(Int|Bool))))
                          | x : Int -> `true
                          | x : Bool -> `false
                          | x : (!(Int|Bool)) -> x).[`true; 3; `true]");
      assert_equal ~msg:"Test CDuce.runtime.misc.firsts failed"
	~printer:(fun x -> x)
	"Abstraction(((Int,Int), X1 -> X1 where X1 = (Int,Int)),{})"
	(run_test_eval "fun firsts x : (Int*Int) y : (Int*Int) : (Int*Int) ->
                     match x,y : ((Int*Int)*(Int*Int)) with
                       | (a : Int,_ : Int),(b : Int,_ : Int) -> a,b");
      assert_equal ~msg:"Test CDuce.runtime.misc.firsts_applied failed"
	~printer:(fun x -> x) "(5, 1, {})"
	(run_test_eval "((fun firsts x : (Int*Int) y : (Int*Int) : (Int*Int) ->
                       match x,y : ((Int*Int)*(Int*Int)) with
                         | (a : Int,_ : Int),(b : Int,_ : Int) -> a,b)
                   .(5, 3)).(1, 4)");
      assert_equal ~msg:"Test CDuce.runtime.misc.applier failed"
	~printer:(fun x -> x) "Abstraction((Int, Int -> Int -> Int),{})"
	(run_test_eval "fun applier x : Int f : (Int->Int) : Int -> f.x");
      assert_equal ~msg:"Test CDuce.runtime.misc.applier_applied failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "((fun applier x : Int f : (Int->Int) : Int ->
                       f.x).2).(fun g x : Int : Int -> x)");
    );

    "arith" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.arith.simple failed"
	~printer:(fun x -> x) "5"
	(run_test_eval "2+3");
      assert_equal ~msg:"Test CDuce.runtime.arith.complete failed"
	~printer:(fun x -> x) "1"
	(run_test_eval "2+5*7%2-8/4");
    );

    "match" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.match.simple failed"
	~printer:(fun x -> x) "1"
	(run_test_eval "match 1 : Int with | 1 -> 1");
      assert_equal ~msg:"Test CDuce.runtime.match.simple_var failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "(fun f x : Int : Int ->
                      match x : Int with | _ : Int -> x).2");
      assert_equal ~msg:"Test CDuce.runtime.match.medium failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "(fun f x : Int : Int ->
                      match x : Int with | 1 -> 3 | _ : Int -> x).2");
      assert_equal ~msg:"Test CDuce.runtime.match.rec failed"
	~printer:(fun x -> x) "3"
	(run_test_eval "(fun f x : Int : Int ->
                      match x : Int with | 1 -> 3 | _ : Int -> f.1).2");
      assert_equal ~msg:"Test CDuce.runtime.match.desugar_if failed"
	~printer:(fun x -> x) "0"
	(run_test_eval "((fun f x : Int y : Int : Int ->
                           match (x = y) : Bool with | `true -> 0 | `false -> 1).2).2");
    );

    "string" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.string.simple failed"
	~printer:(fun x -> x) "\"The cake is a lie\""
	(run_test_eval "\"The cake is a lie\"");
    );

    "list" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.list.simple failed"
	~printer:(fun x -> x) "1"
	(run_test_eval "match [1; 2] : [Int] with
                     | (el : Int) :: (_ : [Int]) -> el
                     | [] -> 3");
      assert_equal ~msg:"Test CDuce.runtime.list.simple2 failed"
	~printer:(fun x -> x) "3"
	(run_test_eval "match [] : [Int] with
                     | (el : Int) :: (_ : [Int]) -> el
                     | [] -> 3");
      assert_equal ~msg:"Test CDuce.runtime.list.tail failed"
	~printer:(fun x -> x) "Abstraction(([ Int* ], [ Int* ]),{})"
	(run_test_eval "fun tail x : [Int] : [Int] -> match x : [Int] with
                     | (_ : Int) :: (rest : [Int]) -> rest");
      assert_equal ~msg:"Test CDuce.runtime.list.tail.eval failed"
	~printer:(fun x -> x) "(2, (5, Atom(nil), {}), {})"
	(run_test_eval "(fun tail x : [Int] : [Int] -> match x : [Int] with
                     | (_ : Int) :: (rest : [Int]) -> rest).[1; 2; 5]");
      assert_equal ~msg:"Test CDuce.runtime.list.last failed"
	~printer:(fun x -> x) "7"
	(run_test_eval "(fun f x : [Int] : [Int] -> match x : [Int] with
                     | (el : Int) :: [] -> el
                     | (_ : Int) :: (rest : [Int]) -> f.rest).[1; 2; 5; 4; 8; 7]");
      assert_equal ~msg:"Test CDuce.runtime.list.plusone failed"
	~printer:(fun x -> x) "(2, (3, (6, (5, (9, 8, {}), {}), {}), {}), {})"
	(run_test_eval "(fun f x : [Int] : [Int] -> match x : [Int] with
                     | (el : Int) :: [] -> el+1
                     | (el : Int) :: (rest : [Int]) -> ((el+1), (f.rest))).[1; 2; 5; 4; 8; 7]");
      assert_equal ~msg:"Test CDuce.runtime.list.concat failed"
	~printer:(fun x -> x) "(1, (2, (5, (4, (8, (7, (2, (3, (4, Atom(nil), {}), {}), {}), {}), {}), {}), {}), {}), {})"
	(run_test_eval "(fun concat x : [[Int]] : [Int] -> match x : [[Int]] with
                     | (el : [Int]) :: [] -> el
                     | (el : [Int]) :: (rest : [[Int]]) -> (el@(concat.rest))).[[1; 2; 5; 4; 8; 7]; [2; 3; 4]]");
      assert_equal ~msg:"Test CDuce.runtime.list.length_easy failed"
	~printer:(fun x -> x) "6"
	(run_test_eval "(fun length x : [Int] : Int -> match x : [Int] with
                     | [] -> 0
                     | (el : Int) :: (rest : [Int]) -> length.rest + 1).[1; 2; 5; 4; 8; 7]");
      assert_equal ~msg:"Test CDuce.runtime.list.length_hard failed"
	~printer:(fun x -> x) "((6, 0, {}), 2, {})"
	(run_test_eval "let length : (['A[{A/Int},{A/Bool}]] -> Int) =
                          (fun f l : ['A[{A/Int},{A/Bool}]] : Int -> match l : ['A[{A/Int},{A/Bool}]] with
                             | [] -> 0
                             | (el : 'A[{A/Int},{A/Bool}]) :: (rest : ['A[{A/Int},{A/Bool}]]) -> f.rest + 1)
                        in
                        (length.[1; 2; 5; 4; 8; 7], length.[], length.[`true; 2]) : (Int*Int*Int)");
      assert_equal ~msg:"Test CDuce.runtime.list.nth failed"
	~printer:(fun x -> x) "5"
	(run_test_eval "(fun nth l : ['A[{A/(Int|Bool)}]] n : Int : 'A[{A/(Int|Bool)}] ->
                           match l : ['A[{A/(Int|Bool)}]] with
                             | (el : 'A[{A/(Int|Bool)}]) :: [] -> el
                             | (el : 'A[{A/(Int|Bool)}]) :: (rest : ['A[{A/(Int|Bool)}]]) ->
                               (if n = 0 then el else nth.rest.(n-1))).[1; 2; 5; `true; 2].2");
      assert_equal ~msg:"Test CDuce.runtime.list.rev failed"
	~printer:(fun x -> x) "(2, (Atom(true), (5, (2, (1, Atom(nil), {}), {}), {}), {}), {})"
	(run_test_eval "(fun rev l : ['A[{A/(Int|Bool)}]] : ['A[{A/(Int|Bool)}]] ->
                           match l : ['A[{A/(Int|Bool)}]] with
                             | (el : 'A[{A/(Int|Bool)}]) :: [] -> [el]
                             | (el : 'A[{A/(Int|Bool)}]) :: (rest : ['A[{A/(Int|Bool)}]]) ->
                               (rev.rest) @ [el]).[1; 2; 5; `true; 2]");
    );

    "union" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.union.identity failed"
	~printer:(fun x -> x) "Abstraction(([ Char* ] | Int, [ Char* ] | Int),{})"
	(run_test_eval "fun f x : (Int | String) : (Int | String) -> x");
      assert_equal ~msg:"Test CDuce.runtime.union.match failed"
	~printer:(fun x -> x) "Abstraction(([ Char* ] | Int, [ Char* ] | Int),{})"
	(run_test_eval "fun f x : (Int | String) : (Int | String) ->
                     match x : (Int | String) with
                       | _ : Int -> 2
                       | _ : String -> \"Piece of cake\"");
      assert_equal ~msg:"Test CDuce.runtime.union.match_applied failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "(fun f x : (Int | String) : (Int | String) ->
                      match x : (Int | String) with
                        | _ : Int -> 2
                        | _ : String -> \"Piece of cake\").5");
      assert_equal ~msg:"Test CDuce.runtime.union.match_applied2 failed"
	~printer:(fun x -> x) "\"Piece of cake\""
	(run_test_eval "(fun f x : (Int | String) : (Int | String) ->
                      match x : (Int | String) with
                        | _ : Int -> 2
                        | _ : String -> \"Piece of cake\").\"test\"");
    );

    "union_precise" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.union_precise.identity failed"
	~printer:(fun x -> x) "Abstraction((Int, Int) ,([ Char* ], [ Char* ]),{})"
	(run_test_eval "fun ((Int -> Int) & (String -> String))
                          | x : (Int | String) -> x");
      assert_equal ~msg:"Test CDuce.runtime.union_precise.match failed"
	~printer:(fun x -> x) "Abstraction((Int, Int) ,([ Char* ], [ Char* ]),{})"
	(run_test_eval "fun ((Int -> Int) & (String -> String))
                          | x : Int -> 2
                          | x : String -> \"Piece of cake\"");
      assert_equal ~msg:"Test CDuce.runtime.union_precise.match_applied failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "(fun ((Int -> Int) & (String -> String))
                           | x : Int -> 2
                           | x : String -> \"Piece of cake\").5");
      assert_equal ~msg:"Test CDuce.runtime.union_precise.match_applied2 failed"
	~printer:(fun x -> x) "\"Piece of cake\""
	(run_test_eval "(fun ((Int -> Int) & (String -> String))
                           | x : Int -> 2
                           | x : String -> \"Piece of cake\").\"test\"");
    );

    "poly" >:: ( fun test_ctxt ->
      assert_equal ~msg:"Test CDuce.runtime.poly.identity_pure failed"
	~printer:(fun x -> x)
	"Abstraction((`$A & Int | Char | Atom | (Any,Any) | <(Any) (Any)>Any | Arrow, 
`$A & Int | Char | Atom | (Any,Any) | <(Any) (Any)>Any | Arrow),{})"
	(run_test_eval "fun f x : 'A[{}] : 'A[{}] -> x");
      assert_equal ~msg:"Test CDuce.runtime.poly.identity failed"
	~printer:(fun x -> x)
	"Abstraction(([ Char* ] | Int, [ Char* ] | Int),{})"
	(run_test_eval "(fun f x : 'A[{A/Int},{A/String}] : 'A[{A/Int},{A/String}] -> x)
                   [{A/Int},{A/String}]");
      assert_equal ~msg:"Test CDuce.runtime.poly.identity_applied failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "((fun f x : 'A[{A/Int},{A/String}] : 'A[{A/Int},{A/String}] -> x)
                   [{A/Int},{A/String}]).2");
      assert_equal ~msg:"Test CDuce.runtime.poly.identity_applied2 failed"
	~printer:(fun x -> x) "2"
	(run_test_eval "((fun f x : 'A[{A/String}] : 'A[{A/String}] -> x)[{A/String}]).2");
      assert_equal ~msg:"Test CDuce.runtime.poly.tail failed"
	~printer:(fun x -> x)
	"Abstraction(([ (`$A & Int | Char | Atom | (Any,Any) | <(Any) (Any)>Any |
               Arrow)* ], [ (`$A & Int | Char | Atom | (Any,Any) |
                            <(Any) (Any)>Any | Arrow)* ]),{})"
	(run_test_eval "fun tail x : ['A[{}]] : ['A[{}]] -> match x : ['A[{}]] with
                     | (_ : 'A[{}]) :: (rest : ['A[{}]]) -> rest");
      assert_equal ~msg:"Test CDuce.runtime.poly.tail_applied failed"
	~printer:(fun x -> x) "(7, (8, (5, Atom(nil), {}), {}), {})"
	(run_test_eval "(fun tail x : ['A[{}]] : ['A[{}]] -> match x : ['A[{}]] with
                     | (_ : 'A[{}]) :: (rest : ['A[{}]]) -> rest).[3; 7; 8; 5]");

    );

  ]

let _ =
  run_test_tt_main (
    test_list
      [ tests_compile;
        (* tests_eval *)
      ]
  )
;;