src/Tools/quickcheck.ML
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(*  Title:      Tools/quickcheck.ML
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    Author:     Stefan Berghofer, Florian Haftmann, Lukas Bulwahn, TU Muenchen
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Generic counterexample search engine.
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*)
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signature QUICKCHECK =
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sig
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  val quickcheckN: string
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  val genuineN: string
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  val noneN: string
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  val unknownN: string
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  val setup: theory -> theory
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  (* configuration *)
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  val auto: bool Unsynchronized.ref
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  val tester : string Config.T
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  val size : int Config.T
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  val iterations : int Config.T
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  val no_assms : bool Config.T
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  val report : bool Config.T
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  val timing : bool Config.T
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  val quiet : bool Config.T
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  val timeout : real Config.T
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  val finite_types : bool Config.T
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  val finite_type_size : int Config.T
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  datatype expectation = No_Expectation | No_Counterexample | Counterexample;
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  datatype test_params = Test_Params of {default_type: typ list, expect : expectation};
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  val test_params_of : Proof.context -> test_params
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  val map_test_params : (typ list * expectation -> typ list * expectation)
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    -> Context.generic -> Context.generic
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  datatype report = Report of
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    { iterations : int, raised_match_errors : int,
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      satisfied_assms : int list, positive_concl_tests : int }
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  (* quickcheck's result *)
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  datatype result =
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    Result of
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     {counterexample : (string * term) list option,
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      evaluation_terms : (term * term) list option,
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      timings : (string * int) list,
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      reports : (int * report) list}
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  val empty_result : result
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  val add_timing : (string * int) -> result Unsynchronized.ref -> unit
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  val counterexample_of : result -> (string * term) list option
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  val timings_of : result -> (string * int) list
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  (* registering generators *)
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  val add_generator:
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    string * (Proof.context -> (term * term list) list -> int list -> term list option * report option)
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      -> Context.generic -> Context.generic
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  val add_tester:
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    string * (Proof.context -> bool * bool -> (string * typ) list -> (term * term list) list -> result list)
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      -> Context.generic -> Context.generic
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  val add_batch_generator:
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    string * (Proof.context -> term list -> (int -> term list option) list)
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      -> Context.generic -> Context.generic
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  val add_batch_validator:
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    string * (Proof.context -> term list -> (int -> bool) list)
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      -> Context.generic -> Context.generic
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  (* basic operations *)
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  val limit : Time.time -> (bool * bool) -> (unit -> 'a) -> (unit -> 'a) -> unit -> 'a  
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  val instantiate_goals: Proof.context -> (string * typ) list -> (term * term list) list
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    -> (typ option * (term * term list)) list list
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  val collect_results: ('a -> result) -> 'a list -> result list -> result list
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  (* testing terms and proof states *)
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  val test_term: Proof.context -> bool * bool -> term * term list -> result
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  val test_goal_terms:
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    Proof.context -> bool * bool -> (string * typ) list -> (term * term list) list  
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      -> result list
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  val quickcheck: (string * string list) list -> int -> Proof.state -> (string * term) list option
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  (* testing a batch of terms *)
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  val test_terms:
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    Proof.context -> term list -> (string * term) list option list option * (string * int) list
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  val validate_terms: Proof.context -> term list -> bool list option * (string * int) list
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end;
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structure Quickcheck : QUICKCHECK =
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struct
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val quickcheckN = "quickcheck"
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val quickcheck_paramsN = "quickcheck_params"
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val genuineN = "genuine"
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val noneN = "none"
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val unknownN = "unknown"
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(* preferences *)
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val auto = Unsynchronized.ref false;
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val _ =
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  ProofGeneralPgip.add_preference Preferences.category_tracing
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  (Unsynchronized.setmp auto true (fn () =>
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    Preferences.bool_pref auto
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      "auto-quickcheck"
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      "Run Quickcheck automatically.") ());
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(* quickcheck report *)
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datatype report = Report of
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  { iterations : int, raised_match_errors : int,
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    satisfied_assms : int list, positive_concl_tests : int }
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(* Quickcheck Result *)
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datatype result = Result of
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  { counterexample : (string * term) list option, evaluation_terms : (term * term) list option,
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    timings : (string * int) list, reports : (int * report) list}
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val empty_result =
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  Result {counterexample = NONE, evaluation_terms = NONE, timings = [], reports = []}
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fun counterexample_of (Result r) = #counterexample r
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fun found_counterexample (Result r) = is_some (#counterexample r)
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fun response_of (Result r) = case (#counterexample r, #evaluation_terms r) of
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    (SOME ts, SOME evals) => SOME (ts, evals)
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  | (NONE, NONE) => NONE
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fun timings_of (Result r) = #timings r
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fun set_reponse names eval_terms (SOME ts) (Result r) =
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  let
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    val (ts1, ts2) = chop (length names) ts
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  in
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    Result {counterexample = SOME (names ~~ ts1), evaluation_terms = SOME (eval_terms ~~ ts2),
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      timings = #timings r, reports = #reports r}
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  end
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  | set_reponse _ _ NONE result = result
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fun set_counterexample counterexample (Result r) =
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  Result {counterexample = counterexample,  evaluation_terms = #evaluation_terms r,
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    timings = #timings r, reports = #reports r}
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fun set_evaluation_terms evaluation_terms (Result r) =
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  Result {counterexample = #counterexample r,  evaluation_terms = evaluation_terms,
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    timings = #timings r, reports = #reports r}
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fun cons_timing timing (Result r) =
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  Result {counterexample = #counterexample r, evaluation_terms = #evaluation_terms r,
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    timings = cons timing (#timings r), reports = #reports r}
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fun cons_report size (SOME report) (Result r) =
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  Result {counterexample = #counterexample r, evaluation_terms = #evaluation_terms r,
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    timings = #timings r, reports = cons (size, report) (#reports r)}
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  | cons_report _ NONE result = result
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fun add_timing timing result_ref =
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  Unsynchronized.change result_ref (cons_timing timing)
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fun add_report size report result_ref =
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  Unsynchronized.change result_ref (cons_report size report)
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fun add_response names eval_terms response result_ref =
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  Unsynchronized.change result_ref (set_reponse names eval_terms response)
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(* expectation *)
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datatype expectation = No_Expectation | No_Counterexample | Counterexample;
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fun merge_expectation (expect1, expect2) =
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  if expect1 = expect2 then expect1 else No_Expectation
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(* quickcheck configuration -- default parameters, test generators *)
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val tester = Attrib.setup_config_string @{binding quickcheck_tester} (K "")
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val size = Attrib.setup_config_int @{binding quickcheck_size} (K 10)
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val iterations = Attrib.setup_config_int @{binding quickcheck_iterations} (K 100)
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val no_assms = Attrib.setup_config_bool @{binding quickcheck_no_assms} (K false)
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val report = Attrib.setup_config_bool @{binding quickcheck_report} (K true)
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val timing = Attrib.setup_config_bool @{binding quickcheck_timing} (K false)
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val quiet = Attrib.setup_config_bool @{binding quickcheck_quiet} (K false)
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val timeout = Attrib.setup_config_real @{binding quickcheck_timeout} (K 30.0)
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val finite_types = Attrib.setup_config_bool @{binding quickcheck_finite_types} (K true)
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val finite_type_size = Attrib.setup_config_int @{binding quickcheck_finite_type_size} (K 3)
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datatype test_params = Test_Params of
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  {default_type: typ list, expect : expectation};
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fun dest_test_params (Test_Params {default_type, expect}) = (default_type, expect);
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fun make_test_params (default_type, expect) =
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  Test_Params {default_type = default_type, expect = expect};
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fun map_test_params' f (Test_Params {default_type, expect}) =
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  make_test_params (f (default_type, expect));
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fun merge_test_params
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  (Test_Params {default_type = default_type1, expect = expect1},
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    Test_Params {default_type = default_type2, expect = expect2}) =
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  make_test_params
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    (merge (op =) (default_type1, default_type2), merge_expectation (expect1, expect2));
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structure Data = Generic_Data
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(
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  type T =
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    (((string * (Proof.context -> (term * term list) list -> int list -> term list option * report option)) list
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      * (string * (Proof.context -> bool * bool -> (string * typ) list -> (term * term list) list -> result list)) list)
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      * ((string * (Proof.context -> term list -> (int -> term list option) list)) list
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      * ((string * (Proof.context -> term list -> (int -> bool) list)) list)))
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      * test_params;
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  val empty = ((([], []), ([], [])), Test_Params {default_type = [], expect = No_Expectation});
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  val extend = I;
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  fun merge ((((generators1, testers1), (batch_generators1, batch_validators1)), params1),
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    (((generators2, testers2), (batch_generators2, batch_validators2)), params2)) : T =
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    (((AList.merge (op =) (K true) (generators1, generators2),
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       AList.merge (op =) (K true) (testers1, testers2)),
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      (AList.merge (op =) (K true) (batch_generators1, batch_generators2),
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       AList.merge (op =) (K true) (batch_validators1, batch_validators2))),
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      merge_test_params (params1, params2));
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);
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val test_params_of = snd o Data.get o Context.Proof;
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val default_type = fst o dest_test_params o test_params_of
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val expect = snd o dest_test_params o test_params_of
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val map_test_params = Data.map o apsnd o map_test_params'
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val add_generator = Data.map o apfst o apfst o apfst o AList.update (op =);
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val add_tester = Data.map o apfst o apfst o apsnd o AList.update (op =);
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val add_batch_generator = Data.map o apfst o apsnd o apfst o AList.update (op =);
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val add_batch_validator = Data.map o apfst o apsnd o apsnd o AList.update (op =);
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(* generating tests *)
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fun gen_mk_tester lookup ctxt v =
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  let
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    val name = Config.get ctxt tester
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    val tester = case lookup ctxt name
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      of NONE => error ("No such quickcheck tester: " ^ name)
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      | SOME tester => tester ctxt;
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  in
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    if Config.get ctxt quiet then
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      try tester v
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    else
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      let
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        val tester = Exn.interruptible_capture tester v
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      in case Exn.get_result tester of
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          NONE => SOME (Exn.release tester)
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        | SOME tester => SOME tester
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      end
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  end
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val mk_tester =
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  gen_mk_tester (fn ctxt => AList.lookup (op =) ((fst o fst o fst o Data.get o Context.Proof) ctxt))
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val mk_batch_tester =
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  gen_mk_tester (fn ctxt => AList.lookup (op =) ((fst o snd o fst o Data.get o Context.Proof) ctxt))
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val mk_batch_validator =
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  gen_mk_tester (fn ctxt => AList.lookup (op =) ((snd o snd o fst o Data.get o Context.Proof) ctxt))
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fun lookup_tester ctxt = AList.lookup (op =) ((snd o fst o fst o Data.get o Context.Proof) ctxt)
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(* testing propositions *)
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fun check_test_term t =
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  let
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    val _ = (null (Term.add_tvars t []) andalso null (Term.add_tfrees t [])) orelse
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      error "Term to be tested contains type variables";
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    val _ = null (Term.add_vars t []) orelse
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      error "Term to be tested contains schematic variables";
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  in () end
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fun cpu_time description e =
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  let val ({cpu, ...}, result) = Timing.timing e ()
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  in (result, (description, Time.toMilliseconds cpu)) end
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fun limit timeout (limit_time, is_interactive) f exc () =
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  if limit_time then
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      TimeLimit.timeLimit timeout f ()
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    handle TimeLimit.TimeOut =>
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      if is_interactive then exc () else raise TimeLimit.TimeOut
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  else
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    f ()
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fun test_term ctxt (limit_time, is_interactive) (t, eval_terms) =
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  let
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    fun message s = if Config.get ctxt quiet then () else Output.urgent_message s
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    val _ = check_test_term t
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    val names = Term.add_free_names t []
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    val current_size = Unsynchronized.ref 0
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    val current_result = Unsynchronized.ref empty_result 
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    fun excipit () =
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      "Quickcheck ran out of time while testing at size " ^ string_of_int (!current_size)
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    fun with_size test_fun k =
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      if k > Config.get ctxt size then
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        NONE
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      else
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        let
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          val _ = message ("Test data size: " ^ string_of_int k)
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          val _ = current_size := k
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          val ((result, report), timing) =
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            cpu_time ("size " ^ string_of_int k) (fn () => test_fun [1, k - 1])
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          val _ = add_timing timing current_result
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          val _ = add_report k report current_result
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        in
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          case result of NONE => with_size test_fun (k + 1) | SOME q => SOME q
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        end;
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  in
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    limit (seconds (Config.get ctxt timeout)) (limit_time, is_interactive) (fn () =>
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      let
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        val (test_fun, comp_time) = cpu_time "quickcheck compilation"
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          (fn () => mk_tester ctxt [(t, eval_terms)]);
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        val _ = add_timing comp_time current_result
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      in
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        case test_fun of NONE => !current_result
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          | SOME test_fun =>
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            let
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              val (response, exec_time) =
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                cpu_time "quickcheck execution" (fn () => with_size test_fun 1)
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              val _ = add_response names eval_terms response current_result
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              val _ = add_timing exec_time current_result
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            in
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              !current_result
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            end
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       end)
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     (fn () => (message (excipit ()); !current_result)) ()
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  end;
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fun validate_terms ctxt ts =
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  let
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    val _ = map check_test_term ts
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    val size = Config.get ctxt size
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    val (test_funs, comp_time) = cpu_time "quickcheck batch compilation"
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      (fn () => mk_batch_validator ctxt ts) 
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    fun with_size tester k =
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      if k > size then true
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      else if tester k then with_size tester (k + 1) else false
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    val (results, exec_time) = cpu_time "quickcheck batch execution" (fn () =>
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        Option.map (map (fn test_fun => TimeLimit.timeLimit (seconds (Config.get ctxt timeout))
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              (fn () => with_size test_fun 1) ()
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             handle TimeLimit.TimeOut => true)) test_funs)
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  in
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    (results, [comp_time, exec_time])
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  end
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fun test_terms ctxt ts =
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  let
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    val _ = map check_test_term ts
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    val size = Config.get ctxt size
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    val namess = map (fn t => Term.add_free_names t []) ts
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    val (test_funs, comp_time) = cpu_time "quickcheck batch compilation" (fn () => mk_batch_tester ctxt ts) 
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    fun with_size tester k =
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      if k > size then NONE
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      else case tester k of SOME ts => SOME ts | NONE => with_size tester (k + 1)
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    val (results, exec_time) = cpu_time "quickcheck batch execution" (fn () =>
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        Option.map (map (fn test_fun => TimeLimit.timeLimit (seconds (Config.get ctxt timeout))
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              (fn () => with_size test_fun 1) ()
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             handle TimeLimit.TimeOut => NONE)) test_funs)
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  in
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    (Option.map (map2 (fn names => Option.map (fn ts => names ~~ ts)) namess) results,
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      [comp_time, exec_time])
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  end
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(* FIXME: this function shows that many assumptions are made upon the generation *)
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(* In the end there is probably no generic quickcheck interface left... *)
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fun test_term_with_increasing_cardinality ctxt (limit_time, is_interactive) ts =
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  let
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    val thy = Proof_Context.theory_of ctxt
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    fun message s = if Config.get ctxt quiet then () else Output.urgent_message s
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    val (ts', eval_terms) = split_list ts
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    val _ = map check_test_term ts'
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    val names = Term.add_free_names (hd ts') []
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    val Ts = map snd (Term.add_frees (hd ts') [])
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    val current_result = Unsynchronized.ref empty_result
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    fun test_card_size test_fun (card, size) =
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      (* FIXME: why decrement size by one? *)
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      let
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        val (ts, timing) = cpu_time ("size " ^ string_of_int size ^ " and card " ^ string_of_int card)
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          (fn () => fst (test_fun [card, size - 1]))
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        val _ = add_timing timing current_result
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      in
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        Option.map (pair card) ts
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      end
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    val enumeration_card_size =
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      if forall (fn T => Sign.of_sort thy (T,  ["Enum.enum"])) Ts then
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        (* size does not matter *)
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        map (rpair 0) (1 upto (length ts))
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      else
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        (* size does matter *)
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        map_product pair (1 upto (length ts)) (1 upto (Config.get ctxt size))
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        |> sort (fn ((c1, s1), (c2, s2)) => int_ord ((c1 + s1), (c2 + s2)))
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  in
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    limit (seconds (Config.get ctxt timeout)) (limit_time, is_interactive) (fn () =>
42162
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   390
      let
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   391
        val (test_fun, comp_time) = cpu_time "quickcheck compilation" (fn () => mk_tester ctxt ts)
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   392
        val _ = add_timing comp_time current_result
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   393
      in
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   394
        case test_fun of
42159
234ec7011e5d generalizing compilation scheme of quickcheck generators to multiple arguments; changing random and exhaustive tester to use one code invocation for polymorphic instances with multiple cardinalities
bulwahn
parents: 42089
diff changeset
   395
          NONE => !current_result
234ec7011e5d generalizing compilation scheme of quickcheck generators to multiple arguments; changing random and exhaustive tester to use one code invocation for polymorphic instances with multiple cardinalities
bulwahn
parents: 42089
diff changeset
   396
        | SOME test_fun =>
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   397
          let
42162
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   398
            val _ = case get_first (test_card_size test_fun) enumeration_card_size of
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   399
              SOME (card, ts) => add_response names (nth eval_terms (card - 1)) (SOME ts) current_result
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   400
            | NONE => ()
42162
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   401
          in !current_result end
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   402
      end)
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   403
      (fn () => (message "Quickcheck ran out of time"; !current_result)) ()
00899500c6ca moved TimeLimit.timeLimit closure to limit time of compilation and execution to avoid the strange, occasional occuring message Exception trace for exception - Interrupt -- probably due to race conditions of a fast execution within the TimeLimit.timelimit closure
bulwahn
parents: 42159
diff changeset
   404
  end
41043
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   405
40647
6e92ca8e981b adding prototype for finite_type instantiations
bulwahn
parents: 40646
diff changeset
   406
fun get_finite_types ctxt =
6e92ca8e981b adding prototype for finite_type instantiations
bulwahn
parents: 40646
diff changeset
   407
  fst (chop (Config.get ctxt finite_type_size)
6e92ca8e981b adding prototype for finite_type instantiations
bulwahn
parents: 40646
diff changeset
   408
    (map (Type o rpair []) ["Enum.finite_1", "Enum.finite_2", "Enum.finite_3",
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   409
     "Enum.finite_4", "Enum.finite_5"]))
40647
6e92ca8e981b adding prototype for finite_type instantiations
bulwahn
parents: 40646
diff changeset
   410
37913
e85f5ad02a8f correcting wellsortedness check and improving error message
bulwahn
parents: 37912
diff changeset
   411
exception WELLSORTED of string
e85f5ad02a8f correcting wellsortedness check and improving error message
bulwahn
parents: 37912
diff changeset
   412
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   413
fun monomorphic_term thy insts default_T =
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   414
  let
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   415
    fun subst (T as TFree (v, S)) =
40903
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   416
      let
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   417
        val T' = AList.lookup (op =) insts v
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   418
          |> the_default default_T
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   419
      in if Sign.of_sort thy (T', S) then T'
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   420
        else raise (WELLSORTED ("For instantiation with default_type " ^
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   421
          Syntax.string_of_typ_global thy default_T ^
40903
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   422
          ":\n" ^ Syntax.string_of_typ_global thy T' ^
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   423
          " to be substituted for variable " ^
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   424
          Syntax.string_of_typ_global thy T ^ " does not have sort " ^
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   425
          Syntax.string_of_sort_global thy S))
1332f6e856b9 corrected indentation
bulwahn
parents: 40656
diff changeset
   426
      end
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   427
      | subst T = T;
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   428
  in (map_types o map_atyps) subst end;
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   429
42026
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   430
datatype wellsorted_error = Wellsorted_Error of string | Term of term * term list
37913
e85f5ad02a8f correcting wellsortedness check and improving error message
bulwahn
parents: 37912
diff changeset
   431
43113
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   432
fun instantiate_goals lthy insts goals =
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   433
  let
42026
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   434
    fun map_goal_and_eval_terms f (check_goal, eval_terms) = (f check_goal, map f eval_terms)
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 42275
diff changeset
   435
    val thy = Proof_Context.theory_of lthy
40926
c600f6ae4b09 only instantiate type variable if there exists some in quickcheck
bulwahn
parents: 40916
diff changeset
   436
    val default_insts =
c600f6ae4b09 only instantiate type variable if there exists some in quickcheck
bulwahn
parents: 40916
diff changeset
   437
      if Config.get lthy finite_types then (get_finite_types lthy) else (default_type lthy)
40647
6e92ca8e981b adding prototype for finite_type instantiations
bulwahn
parents: 40646
diff changeset
   438
    val inst_goals =
42026
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   439
      map (fn (check_goal, eval_terms) =>
40926
c600f6ae4b09 only instantiate type variable if there exists some in quickcheck
bulwahn
parents: 40916
diff changeset
   440
        if not (null (Term.add_tfree_names check_goal [])) then
c600f6ae4b09 only instantiate type variable if there exists some in quickcheck
bulwahn
parents: 40916
diff changeset
   441
          map (fn T =>
42026
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   442
            (pair (SOME T) o Term o apfst (Object_Logic.atomize_term thy))
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   443
              (map_goal_and_eval_terms (monomorphic_term thy insts T) (check_goal, eval_terms))
41043
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   444
              handle WELLSORTED s => (SOME T, Wellsorted_Error s)) default_insts
40926
c600f6ae4b09 only instantiate type variable if there exists some in quickcheck
bulwahn
parents: 40916
diff changeset
   445
        else
43113
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   446
          [(NONE, Term (Object_Logic.atomize_term thy check_goal, eval_terms))]) goals
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   447
    val error_msg =
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   448
      cat_lines
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   449
        (maps (map_filter (fn (_, Term t) => NONE | (_, Wellsorted_Error s) => SOME s)) inst_goals)
41043
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   450
    fun is_wellsorted_term (T, Term t) = SOME (T, t)
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   451
      | is_wellsorted_term (_, Wellsorted_Error s) = NONE
37913
e85f5ad02a8f correcting wellsortedness check and improving error message
bulwahn
parents: 37912
diff changeset
   452
    val correct_inst_goals =
41043
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   453
      case map (map_filter is_wellsorted_term) inst_goals of
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   454
        [[]] => error error_msg
37913
e85f5ad02a8f correcting wellsortedness check and improving error message
bulwahn
parents: 37912
diff changeset
   455
      | xs => xs
40644
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   456
    val _ = if Config.get lthy quiet then () else warning error_msg
43113
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   457
  in
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   458
    correct_inst_goals
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   459
  end
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   460
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   461
fun collect_results f [] results = results
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   462
  | collect_results f (t :: ts) results =
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   463
    let
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   464
      val result = f t
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   465
    in
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   466
      if found_counterexample result then
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   467
        (result :: results)
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   468
      else
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   469
        collect_results f ts (result :: results)
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   470
    end  
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   471
43147
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   472
fun test_goal_terms ctxt (limit_time, is_interactive) insts goals =
43113
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   473
  let
41043
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   474
    fun test_term' goal =
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   475
      case goal of
43147
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   476
        [(NONE, t)] => test_term ctxt (limit_time, is_interactive) t
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   477
      | ts => test_term_with_increasing_cardinality ctxt (limit_time, is_interactive) (map snd ts)
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   478
    val correct_inst_goals = instantiate_goals ctxt insts goals
41043
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   479
  in
43147
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   480
    case lookup_tester ctxt (Config.get ctxt tester) of
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   481
      SOME test_goal_terms => test_goal_terms ctxt (limit_time, is_interactive) insts goals
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   482
    | NONE =>
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   483
        if Config.get ctxt finite_types then
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   484
          collect_results test_term' correct_inst_goals []
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   485
        else
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   486
          collect_results (test_term ctxt (limit_time, is_interactive)) (maps (map snd) correct_inst_goals) []
41043
3750bdac1327 testing smartly in two dimensions (cardinality and size) in quickcheck
bulwahn
parents: 40931
diff changeset
   487
  end;
37912
247042107f93 using multiple default types in quickcheck
bulwahn
parents: 37911
diff changeset
   488
42026
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   489
fun test_goal (time_limit, is_interactive) (insts, eval_terms) i state =
40648
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   490
  let
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   491
    val lthy = Proof.context_of state;
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   492
    val thy = Proof.theory_of state;
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   493
    fun strip (Const ("all", _) $ Abs (_, _, t)) = strip t
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   494
      | strip t = t;
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   495
    val {goal = st, ...} = Proof.raw_goal state;
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   496
    val (gi, frees) = Logic.goal_params (prop_of st) i;
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   497
    val some_locale = case (Option.map #target o Named_Target.peek) lthy
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   498
     of NONE => NONE
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   499
      | SOME "" => NONE
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   500
      | SOME locale => SOME locale;
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   501
    val assms = if Config.get lthy no_assms then [] else case some_locale
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   502
     of NONE => Assumption.all_assms_of lthy
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   503
      | SOME locale => Assumption.local_assms_of lthy (Locale.init locale thy);
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   504
    val proto_goal = Logic.list_implies (map Thm.term_of assms, subst_bounds (frees, strip gi));
43113
7226051e8b89 splitting test_goal_terms in Quickcheck into smaller basic functions
bulwahn
parents: 43112
diff changeset
   505
    val goals = case some_locale
42026
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   506
     of NONE => [(proto_goal, eval_terms)]
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   507
      | SOME locale =>
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   508
        map (fn (_, phi) => (Morphism.term phi proto_goal, map (Morphism.term phi) eval_terms))
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   509
          (Locale.registrations_of (Context.Theory thy) (*FIXME*) locale);
40648
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   510
  in
43147
70337ff0352d moving the distinction between invocation of testers and generators into test_goal_terms function in quickcheck for its usage with mutabelle
bulwahn
parents: 43114
diff changeset
   511
    test_goal_terms lthy (time_limit, is_interactive) insts goals
40648
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   512
  end
1598ec648b0d splitting test_goal function in two functions; exporting new configurations in quickcheck; iterations depend on generator_name in quickcheck
bulwahn
parents: 40647
diff changeset
   513
37912
247042107f93 using multiple default types in quickcheck
bulwahn
parents: 37911
diff changeset
   514
(* pretty printing *)
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   515
40225
2de5dd0cd3a2 clear identification
blanchet
parents: 40148
diff changeset
   516
fun tool_name auto = (if auto then "Auto " else "") ^ "Quickcheck"
2de5dd0cd3a2 clear identification
blanchet
parents: 40148
diff changeset
   517
2de5dd0cd3a2 clear identification
blanchet
parents: 40148
diff changeset
   518
fun pretty_counterex ctxt auto NONE = Pretty.str (tool_name auto ^ " found no counterexample.")
42028
bd6515e113b2 passing a term with free variables to the quickcheck tester functions instead of an lambda expression because this is more natural with passing further evaluation terms; added output of evaluation terms; added evaluation of terms in the exhaustive testing
bulwahn
parents: 42026
diff changeset
   519
  | pretty_counterex ctxt auto (SOME (cex, eval_terms)) =
bd6515e113b2 passing a term with free variables to the quickcheck tester functions instead of an lambda expression because this is more natural with passing further evaluation terms; added output of evaluation terms; added evaluation of terms in the exhaustive testing
bulwahn
parents: 42026
diff changeset
   520
      Pretty.chunks ((Pretty.str (tool_name auto ^ " found a counterexample:\n") ::
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   521
        map (fn (s, t) =>
42028
bd6515e113b2 passing a term with free variables to the quickcheck tester functions instead of an lambda expression because this is more natural with passing further evaluation terms; added output of evaluation terms; added evaluation of terms in the exhaustive testing
bulwahn
parents: 42026
diff changeset
   522
          Pretty.block [Pretty.str (s ^ " ="), Pretty.brk 1, Syntax.pretty_term ctxt t]) (rev cex))
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   523
        @ (if null eval_terms then []
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   524
           else (Pretty.str ("Evaluated terms:\n") ::
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   525
             map (fn (t, u) =>
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   526
               Pretty.block [Syntax.pretty_term ctxt t, Pretty.str " =", Pretty.brk 1, Syntax.pretty_term ctxt u])
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   527
               (rev eval_terms))));
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   528
35378
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   529
fun pretty_report (Report {iterations = iterations, raised_match_errors = raised_match_errors,
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   530
    satisfied_assms = satisfied_assms, positive_concl_tests = positive_concl_tests}) =
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   531
  let
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   532
    fun pretty_stat s i = Pretty.block ([Pretty.str (s ^ ": " ^ string_of_int i)])
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   533
  in
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   534
     ([pretty_stat "iterations" iterations,
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   535
     pretty_stat "match exceptions" raised_match_errors]
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   536
     @ map_index
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   537
       (fn (i, n) => pretty_stat ("satisfied " ^ string_of_int (i + 1) ^ ". assumption") n)
35378
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   538
       satisfied_assms
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   539
     @ [pretty_stat "positive conclusion tests" positive_concl_tests])
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   540
  end
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   541
35380
6ac5b81a763d adopting Mutabelle to quickcheck reporting; improving quickcheck reporting
bulwahn
parents: 35379
diff changeset
   542
fun pretty_reports ctxt (SOME reports) =
40916
9928083506b6 improving presentation of quickcheck reports
bulwahn
parents: 40912
diff changeset
   543
  Pretty.chunks (Pretty.fbrk :: Pretty.str "Quickcheck report:" ::
40909
e006d1e06920 renamed parameter from generator to tester; quickcheck only applies one tester on invocation
bulwahn
parents: 40908
diff changeset
   544
    maps (fn (size, report) =>
e006d1e06920 renamed parameter from generator to tester; quickcheck only applies one tester on invocation
bulwahn
parents: 40908
diff changeset
   545
      Pretty.str ("size " ^ string_of_int size ^ ":") :: pretty_report report @ [Pretty.brk 1])
35378
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   546
      (rev reports))
35380
6ac5b81a763d adopting Mutabelle to quickcheck reporting; improving quickcheck reporting
bulwahn
parents: 35379
diff changeset
   547
  | pretty_reports ctxt NONE = Pretty.str ""
35378
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   548
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   549
fun pretty_timings timings =
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   550
  Pretty.chunks (Pretty.fbrk :: Pretty.str "timings:" ::
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   551
    maps (fn (label, time) =>
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   552
      Pretty.str (label ^ ": " ^ string_of_int time ^ " ms") :: Pretty.brk 1 :: []) (rev timings))
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   553
42433
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   554
fun pretty_counterex_and_reports ctxt auto [] =
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   555
    Pretty.chunks [Pretty.strs (tool_name auto ::
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   556
        space_explode " " "is used in a locale where no interpretation is provided."),
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   557
      Pretty.strs (space_explode " " "Please provide an executable interpretation for the locale.")]
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   558
  | pretty_counterex_and_reports ctxt auto (result :: _) =
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   559
    Pretty.chunks (pretty_counterex ctxt auto (response_of result) ::
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   560
      (* map (pretty_reports ctxt) (reports_of result) :: *)
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   561
      (if Config.get ctxt timing then cons (pretty_timings (timings_of result)) else I) [])
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   562
30980
fe0855471964 misc cleanup of auto_solve and quickcheck:
wenzelm
parents: 30973
diff changeset
   563
(* Isar commands *)
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   564
28336
a8edf4c69a79 fixed quickcheck parameter syntax
haftmann
parents: 28315
diff changeset
   565
fun read_nat s = case (Library.read_int o Symbol.explode) s
a8edf4c69a79 fixed quickcheck parameter syntax
haftmann
parents: 28315
diff changeset
   566
 of (k, []) => if k >= 0 then k
a8edf4c69a79 fixed quickcheck parameter syntax
haftmann
parents: 28315
diff changeset
   567
      else error ("Not a natural number: " ^ s)
a8edf4c69a79 fixed quickcheck parameter syntax
haftmann
parents: 28315
diff changeset
   568
  | (_, _ :: _) => error ("Not a natural number: " ^ s);
37909
583543ad6ad1 changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents: 36960
diff changeset
   569
34128
8650a073dd9b made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
blanchet
parents: 33583
diff changeset
   570
fun read_bool "false" = false
8650a073dd9b made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
blanchet
parents: 33583
diff changeset
   571
  | read_bool "true" = true
8650a073dd9b made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
blanchet
parents: 33583
diff changeset
   572
  | read_bool s = error ("Not a Boolean value: " ^ s)
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   573
40366
a2866dbfbe6b changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents: 40253
diff changeset
   574
fun read_real s =
a2866dbfbe6b changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents: 40253
diff changeset
   575
  case (Real.fromString s) of
a2866dbfbe6b changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents: 40253
diff changeset
   576
    SOME s => s
a2866dbfbe6b changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents: 40253
diff changeset
   577
  | NONE => error ("Not a real number: " ^ s)
a2866dbfbe6b changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents: 40253
diff changeset
   578
37929
22e0797857e6 adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents: 37913
diff changeset
   579
fun read_expectation "no_expectation" = No_Expectation
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   580
  | read_expectation "no_counterexample" = No_Counterexample
37929
22e0797857e6 adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents: 37913
diff changeset
   581
  | read_expectation "counterexample" = Counterexample
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   582
  | read_expectation s = error ("Not an expectation value: " ^ s)
37929
22e0797857e6 adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents: 37913
diff changeset
   583
43114
b9fca691addd Quickcheck Narrowing only requires one compilation with GHC now
bulwahn
parents: 43113
diff changeset
   584
fun valid_tester_name genctxt name =
b9fca691addd Quickcheck Narrowing only requires one compilation with GHC now
bulwahn
parents: 43113
diff changeset
   585
  AList.defined (op =) (fst (fst (fst (Data.get genctxt)))) name orelse
b9fca691addd Quickcheck Narrowing only requires one compilation with GHC now
bulwahn
parents: 43113
diff changeset
   586
    AList.defined (op =) (snd (fst (fst (Data.get genctxt)))) name
40912
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   587
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   588
fun parse_tester name genctxt =
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   589
  if valid_tester_name genctxt name then
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   590
    Config.put_generic tester name genctxt
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   591
  else
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   592
    error ("Unknown tester: " ^ name)
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   593
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   594
fun parse_test_param ("tester", [arg]) = parse_tester arg
40909
e006d1e06920 renamed parameter from generator to tester; quickcheck only applies one tester on invocation
bulwahn
parents: 40908
diff changeset
   595
  | parse_test_param ("size", [arg]) = Config.put_generic size (read_nat arg)
40644
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   596
  | parse_test_param ("iterations", [arg]) = Config.put_generic iterations (read_nat arg)
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   597
  | parse_test_param ("default_type", arg) = (fn gen_ctxt =>
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   598
    map_test_params
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 42275
diff changeset
   599
      ((apfst o K) (map (Proof_Context.read_typ (Context.proof_of gen_ctxt)) arg)) gen_ctxt)
40644
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   600
  | parse_test_param ("no_assms", [arg]) = Config.put_generic no_assms (read_bool arg)
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   601
  | parse_test_param ("expect", [arg]) = map_test_params ((apsnd o K) (read_expectation arg))
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   602
  | parse_test_param ("report", [arg]) = Config.put_generic report (read_bool arg)
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   603
  | parse_test_param ("quiet", [arg]) = Config.put_generic quiet (read_bool arg)
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   604
  | parse_test_param ("timeout", [arg]) = Config.put_generic timeout (read_real arg)
40646
3dfa41e89738 adding option finite_types to quickcheck
bulwahn
parents: 40644
diff changeset
   605
  | parse_test_param ("finite_types", [arg]) = Config.put_generic finite_types (read_bool arg)
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   606
  | parse_test_param ("finite_type_size", [arg]) =
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   607
    Config.put_generic finite_type_size (read_nat arg)
40912
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   608
  | parse_test_param (name, _) = fn genctxt =>
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   609
    if valid_tester_name genctxt name then
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   610
      Config.put_generic tester name genctxt
1108529100ce checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
parents: 40911
diff changeset
   611
    else error ("Unknown tester or test parameter: " ^ name);
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   612
42025
cb5b1e85b32e adding eval option to quickcheck
bulwahn
parents: 41862
diff changeset
   613
fun parse_test_param_inst (name, arg) ((insts, eval_terms), ctxt) =
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 42275
diff changeset
   614
      case try (Proof_Context.read_typ ctxt) name
42025
cb5b1e85b32e adding eval option to quickcheck
bulwahn
parents: 41862
diff changeset
   615
       of SOME (TFree (v, _)) =>
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 42275
diff changeset
   616
         ((AList.update (op =) (v, Proof_Context.read_typ ctxt (the_single arg)) insts, eval_terms), ctxt)
42025
cb5b1e85b32e adding eval option to quickcheck
bulwahn
parents: 41862
diff changeset
   617
        | NONE => (case name of
cb5b1e85b32e adding eval option to quickcheck
bulwahn
parents: 41862
diff changeset
   618
            "eval" => ((insts, eval_terms @ map (Syntax.read_term ctxt) arg), ctxt)
cb5b1e85b32e adding eval option to quickcheck
bulwahn
parents: 41862
diff changeset
   619
          | _ => ((insts, eval_terms), Context.proof_map (parse_test_param (name, arg)) ctxt));
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   620
40644
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   621
fun quickcheck_params_cmd args = Context.theory_map (fold parse_test_param args);
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   622
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   623
fun check_expectation state results =
42433
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   624
  (if exists found_counterexample results andalso expect (Proof.context_of state) = No_Counterexample
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   625
  then
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   626
    error ("quickcheck expected to find no counterexample but found one")
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   627
  else
42433
b48d9186e883 handling the case where quickcheck is used in a locale with no known interpretation user-friendly
bulwahn
parents: 42361
diff changeset
   628
    (if not (exists found_counterexample results) andalso expect (Proof.context_of state) = Counterexample
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   629
    then
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   630
      error ("quickcheck expected to find a counterexample but did not find one")
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   631
    else ()))
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   632
35378
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   633
fun gen_quickcheck args i state =
40644
0850a2a16dce changed old-style quickcheck configurations to new Config.T configurations
bulwahn
parents: 40643
diff changeset
   634
  state
42025
cb5b1e85b32e adding eval option to quickcheck
bulwahn
parents: 41862
diff changeset
   635
  |> Proof.map_context_result (fn ctxt => fold parse_test_param_inst args (([], []), ctxt))
42026
da9b58f1db42 adding option of evaluating terms after invocation in quickcheck
bulwahn
parents: 42025
diff changeset
   636
  |> (fn ((insts, eval_terms), state') => test_goal (true, true) (insts, eval_terms) i state'
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   637
  |> tap (check_expectation state'))
32297
3a4081abb3f7 Quickcheck callable from ML
boehmes
parents: 31599
diff changeset
   638
42088
8d00484551fe making quickcheck's result value more formal; allowing more result information to be returned after timeout; adding output of timing information in quickcheck
bulwahn
parents: 42087
diff changeset
   639
fun quickcheck args i state = counterexample_of (hd (gen_quickcheck args i state))
35378
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   640
32297
3a4081abb3f7 Quickcheck callable from ML
boehmes
parents: 31599
diff changeset
   641
fun quickcheck_cmd args i state =
35378
95d0e3adf38e added basic reporting of test cases to quickcheck
bulwahn
parents: 35324
diff changeset
   642
  gen_quickcheck args i (Toplevel.proof_of state)
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   643
  |> Output.urgent_message o Pretty.string_of
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   644
     o pretty_counterex_and_reports (Toplevel.context_of state) false;
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   645
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   646
val parse_arg =
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   647
  Parse.name --
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   648
    (Scan.optional (Parse.$$$ "=" |--
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   649
      (((Parse.name || Parse.float_number) >> single) ||
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   650
        (Parse.$$$ "[" |-- Parse.list1 Parse.name --| Parse.$$$ "]"))) ["true"]);
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   651
41517
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   652
val parse_args =
7267fb5b724b observe line length limit;
wenzelm
parents: 41472
diff changeset
   653
  Parse.$$$ "[" |-- Parse.list1 parse_arg --| Parse.$$$ "]" || Scan.succeed [];
28336
a8edf4c69a79 fixed quickcheck parameter syntax
haftmann
parents: 28315
diff changeset
   654
36960
01594f816e3a prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents: 36610
diff changeset
   655
val _ =
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   656
  Outer_Syntax.command quickcheck_paramsN "set parameters for random testing" Keyword.thy_decl
36960
01594f816e3a prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents: 36610
diff changeset
   657
    (parse_args >> (fn args => Toplevel.theory (quickcheck_params_cmd args)));
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   658
36960
01594f816e3a prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents: 36610
diff changeset
   659
val _ =
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   660
  Outer_Syntax.improper_command quickcheckN "try to find counterexample for subgoal" Keyword.diag
36960
01594f816e3a prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents: 36610
diff changeset
   661
    (parse_args -- Scan.optional Parse.nat 1
01594f816e3a prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents: 36610
diff changeset
   662
      >> (fn (args, i) => Toplevel.no_timing o Toplevel.keep (quickcheck_cmd args i)));
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   663
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   664
(* automatic testing *)
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   665
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   666
fun try_quickcheck auto state =
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   667
  let
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   668
    val ctxt = Proof.context_of state;
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   669
    val i = 1;
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   670
    val res =
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   671
      state
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   672
      |> Proof.map_context (Config.put report false #> Config.put quiet true)
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   673
      |> try (test_goal (false, false) ([], []) i);
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   674
  in
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   675
    case res of
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   676
      NONE => (unknownN, state)
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   677
    | SOME results =>
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   678
        let
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   679
          val msg = pretty_counterex_and_reports ctxt auto results
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   680
        in
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   681
          if exists found_counterexample results then
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   682
            (genuineN,
43029
3e060b1c844b use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
blanchet
parents: 43024
diff changeset
   683
             state
3e060b1c844b use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
blanchet
parents: 43024
diff changeset
   684
             |> (if auto then
3e060b1c844b use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
blanchet
parents: 43024
diff changeset
   685
                   Proof.goal_message (K (Pretty.chunks [Pretty.str "",
3e060b1c844b use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
blanchet
parents: 43024
diff changeset
   686
                       Pretty.mark Markup.hilite msg]))
3e060b1c844b use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
blanchet
parents: 43024
diff changeset
   687
                 else
3e060b1c844b use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
blanchet
parents: 43024
diff changeset
   688
                   tap (fn _ => Output.urgent_message (Pretty.string_of msg))))
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   689
          else
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   690
            (noneN, state)
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   691
        end
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   692
  end
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   693
  |> `(fn (outcome_code, _) => outcome_code = genuineN)
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   694
43029
3e060b1c844b use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
blanchet
parents: 43024
diff changeset
   695
val setup = Try.register_tool (quickcheckN, (20, auto, try_quickcheck))
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 43018
diff changeset
   696
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   697
end;
28309
c24bc53c815c some steps towards generic quickcheck framework
haftmann
parents: 28256
diff changeset
   698
28315
d3cf88fe77bc generic quickcheck framework
haftmann
parents: 28309
diff changeset
   699
val auto_quickcheck = Quickcheck.auto;