wenzelm@30826
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(* Title: Tools/quickcheck.ML
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bulwahn@40481
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Author: Stefan Berghofer, Florian Haftmann, Lukas Bulwahn, TU Muenchen
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haftmann@28256
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haftmann@28256
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Generic counterexample search engine.
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haftmann@28256
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*)
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haftmann@28256
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haftmann@28256
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signature QUICKCHECK =
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haftmann@28256
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sig
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blanchet@43861
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val quickcheckN: string
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blanchet@43861
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val genuineN: string
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blanchet@43861
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val noneN: string
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blanchet@43861
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val unknownN: string
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bulwahn@38150
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val setup: theory -> theory
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bulwahn@38150
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(* configuration *)
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wenzelm@32740
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val auto: bool Unsynchronized.ref
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bulwahn@44753
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val batch_tester : string Config.T
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bulwahn@40892
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val size : int Config.T
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bulwahn@40892
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val iterations : int Config.T
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bulwahn@46084
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val depth : int Config.T
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bulwahn@40892
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val no_assms : bool Config.T
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bulwahn@40892
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val report : bool Config.T
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bulwahn@42952
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val timing : bool Config.T
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bulwahn@40892
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val quiet : bool Config.T
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bulwahn@40892
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val timeout : real Config.T
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bulwahn@46320
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val allow_function_inversion : bool Config.T;
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bulwahn@40896
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val finite_types : bool Config.T
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bulwahn@40896
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val finite_type_size : int Config.T
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bulwahn@44783
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val set_active_testers: string list -> Context.generic -> Context.generic
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wenzelm@41765
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datatype expectation = No_Expectation | No_Counterexample | Counterexample;
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bulwahn@40892
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datatype test_params = Test_Params of {default_type: typ list, expect : expectation};
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bulwahn@40481
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val test_params_of : Proof.context -> test_params
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bulwahn@40892
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val map_test_params : (typ list * expectation -> typ list * expectation)
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bulwahn@40481
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-> Context.generic -> Context.generic
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bulwahn@46029
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val default_type : Proof.context -> typ list
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bulwahn@42953
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datatype report = Report of
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bulwahn@42953
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{ iterations : int, raised_match_errors : int,
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bulwahn@42953
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satisfied_assms : int list, positive_concl_tests : int }
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bulwahn@42953
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(* quickcheck's result *)
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bulwahn@42952
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datatype result =
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bulwahn@42952
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Result of
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bulwahn@42952
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{counterexample : (string * term) list option,
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bulwahn@42952
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evaluation_terms : (term * term) list option,
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bulwahn@42952
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timings : (string * int) list,
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bulwahn@42952
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reports : (int * report) list}
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bulwahn@44185
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val empty_result : result
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bulwahn@46029
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val found_counterexample : result -> bool
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bulwahn@44456
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val add_timing : (string * int) -> result Unsynchronized.ref -> unit
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bulwahn@46029
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val add_response : string list -> term list -> term list option -> result Unsynchronized.ref -> unit
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bulwahn@46029
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val add_report : int -> report option -> result Unsynchronized.ref -> unit
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bulwahn@42953
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val counterexample_of : result -> (string * term) list option
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bulwahn@42953
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val timings_of : result -> (string * int) list
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bulwahn@44749
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(* registering testers & generators *)
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bulwahn@44749
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type tester =
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bulwahn@46290
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Proof.context -> bool -> (string * typ) list -> (term * term list) list -> result list
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bulwahn@44749
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val add_tester : string * (bool Config.T * tester) -> Context.generic -> Context.generic
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bulwahn@44749
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val add_batch_generator :
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bulwahn@43953
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string * (Proof.context -> term list -> (int -> term list option) list)
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bulwahn@43953
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-> Context.generic -> Context.generic
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bulwahn@44749
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val add_batch_validator :
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bulwahn@43953
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string * (Proof.context -> term list -> (int -> bool) list)
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bulwahn@43953
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-> Context.generic -> Context.generic
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bulwahn@43954
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(* basic operations *)
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bulwahn@46029
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val message : Proof.context -> string -> unit
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bulwahn@46029
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val limit : Time.time -> (bool * bool) -> (unit -> 'a) -> (unit -> 'a) -> unit -> 'a
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bulwahn@38150
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(* testing terms and proof states *)
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bulwahn@46029
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val mk_batch_validator : Proof.context -> term list -> (int -> bool) list option
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bulwahn@46029
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val mk_batch_tester : Proof.context -> term list -> (int -> term list option) list option
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bulwahn@46029
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val active_testers : Proof.context -> tester list
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bulwahn@46029
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val test_terms :
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bulwahn@44754
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Proof.context -> bool * bool -> (string * typ) list -> (term * term list) list -> result list option
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bulwahn@38149
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val quickcheck: (string * string list) list -> int -> Proof.state -> (string * term) list option
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haftmann@28256
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end;
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haftmann@28256
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haftmann@28256
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structure Quickcheck : QUICKCHECK =
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haftmann@28256
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struct
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haftmann@28256
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blanchet@43861
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val quickcheckN = "quickcheck"
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blanchet@43861
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val quickcheck_paramsN = "quickcheck_params"
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blanchet@43861
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blanchet@43861
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val genuineN = "genuine"
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blanchet@43861
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val noneN = "none"
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blanchet@43861
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val unknownN = "unknown"
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blanchet@43861
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wenzelm@30981
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(* preferences *)
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wenzelm@30981
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wenzelm@32740
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val auto = Unsynchronized.ref false;
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wenzelm@30981
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wenzelm@30981
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val _ =
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wenzelm@30981
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ProofGeneralPgip.add_preference Preferences.category_tracing
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wenzelm@39862
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(Unsynchronized.setmp auto true (fn () =>
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wenzelm@30981
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Preferences.bool_pref auto
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wenzelm@30981
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"auto-quickcheck"
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blanchet@39575
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"Run Quickcheck automatically.") ());
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wenzelm@30981
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bulwahn@35378
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(* quickcheck report *)
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bulwahn@35378
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bulwahn@35378
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datatype report = Report of
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bulwahn@35378
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{ iterations : int, raised_match_errors : int,
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bulwahn@35378
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satisfied_assms : int list, positive_concl_tests : int }
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bulwahn@35378
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bulwahn@42952
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(* Quickcheck Result *)
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bulwahn@42952
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bulwahn@42952
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datatype result = Result of
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bulwahn@42952
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{ counterexample : (string * term) list option, evaluation_terms : (term * term) list option,
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bulwahn@42952
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timings : (string * int) list, reports : (int * report) list}
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bulwahn@42952
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bulwahn@42952
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val empty_result =
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bulwahn@42952
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Result {counterexample = NONE, evaluation_terms = NONE, timings = [], reports = []}
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bulwahn@42952
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bulwahn@42952
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fun counterexample_of (Result r) = #counterexample r
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bulwahn@42952
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bulwahn@42952
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fun found_counterexample (Result r) = is_some (#counterexample r)
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bulwahn@42952
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bulwahn@42952
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fun response_of (Result r) = case (#counterexample r, #evaluation_terms r) of
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bulwahn@42952
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(SOME ts, SOME evals) => SOME (ts, evals)
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bulwahn@42952
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| (NONE, NONE) => NONE
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bulwahn@42952
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bulwahn@42952
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fun timings_of (Result r) = #timings r
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bulwahn@42952
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bulwahn@46029
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fun set_response names eval_terms (SOME ts) (Result r) =
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bulwahn@42952
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let
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bulwahn@42952
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val (ts1, ts2) = chop (length names) ts
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bulwahn@46029
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val (eval_terms', _) = chop (length ts2) eval_terms
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bulwahn@42952
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in
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bulwahn@46029
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Result {counterexample = SOME (names ~~ ts1), evaluation_terms = SOME (eval_terms' ~~ ts2),
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bulwahn@42952
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timings = #timings r, reports = #reports r}
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bulwahn@42952
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end
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bulwahn@46029
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| set_response _ _ NONE result = result
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bulwahn@42952
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bulwahn@44456
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bulwahn@44456
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fun set_counterexample counterexample (Result r) =
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bulwahn@44456
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Result {counterexample = counterexample, evaluation_terms = #evaluation_terms r,
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bulwahn@44456
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timings = #timings r, reports = #reports r}
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bulwahn@44456
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bulwahn@44456
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fun set_evaluation_terms evaluation_terms (Result r) =
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bulwahn@44456
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Result {counterexample = #counterexample r, evaluation_terms = evaluation_terms,
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bulwahn@44456
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timings = #timings r, reports = #reports r}
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bulwahn@44456
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bulwahn@42952
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fun cons_timing timing (Result r) =
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bulwahn@42952
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Result {counterexample = #counterexample r, evaluation_terms = #evaluation_terms r,
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bulwahn@42952
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timings = cons timing (#timings r), reports = #reports r}
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bulwahn@42952
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bulwahn@42952
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fun cons_report size (SOME report) (Result r) =
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bulwahn@42952
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Result {counterexample = #counterexample r, evaluation_terms = #evaluation_terms r,
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bulwahn@42952
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timings = #timings r, reports = cons (size, report) (#reports r)}
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bulwahn@42952
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| cons_report _ NONE result = result
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bulwahn@42952
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wenzelm@43071
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fun add_timing timing result_ref =
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wenzelm@43071
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Unsynchronized.change result_ref (cons_timing timing)
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bulwahn@42952
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wenzelm@43071
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fun add_report size report result_ref =
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wenzelm@43071
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Unsynchronized.change result_ref (cons_report size report)
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bulwahn@42952
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bulwahn@42952
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fun add_response names eval_terms response result_ref =
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bulwahn@46029
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Unsynchronized.change result_ref (set_response names eval_terms response)
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bulwahn@42952
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bulwahn@38169
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(* expectation *)
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bulwahn@38169
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wenzelm@41765
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datatype expectation = No_Expectation | No_Counterexample | Counterexample;
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bulwahn@38169
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bulwahn@38169
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fun merge_expectation (expect1, expect2) =
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bulwahn@38169
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if expect1 = expect2 then expect1 else No_Expectation
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bulwahn@38169
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haftmann@28315
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(* quickcheck configuration -- default parameters, test generators *)
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bulwahn@44753
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val batch_tester = Attrib.setup_config_string @{binding quickcheck_batch_tester} (K "")
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wenzelm@43487
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val size = Attrib.setup_config_int @{binding quickcheck_size} (K 10)
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wenzelm@43487
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val iterations = Attrib.setup_config_int @{binding quickcheck_iterations} (K 100)
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bulwahn@46084
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168 |
val depth = Attrib.setup_config_int @{binding quickcheck_depth} (K 10)
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bulwahn@46084
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169 |
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wenzelm@43487
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val no_assms = Attrib.setup_config_bool @{binding quickcheck_no_assms} (K false)
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wenzelm@43487
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val report = Attrib.setup_config_bool @{binding quickcheck_report} (K true)
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wenzelm@43487
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val timing = Attrib.setup_config_bool @{binding quickcheck_timing} (K false)
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wenzelm@43487
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val quiet = Attrib.setup_config_bool @{binding quickcheck_quiet} (K false)
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wenzelm@43487
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val timeout = Attrib.setup_config_real @{binding quickcheck_timeout} (K 30.0)
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bulwahn@46320
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val allow_function_inversion =
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bulwahn@46320
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Attrib.setup_config_bool @{binding quickcheck_allow_function_inversion} (K false)
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wenzelm@43487
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val finite_types = Attrib.setup_config_bool @{binding quickcheck_finite_types} (K true)
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wenzelm@43487
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val finite_type_size = Attrib.setup_config_int @{binding quickcheck_finite_type_size} (K 3)
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bulwahn@40894
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haftmann@28309
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180 |
datatype test_params = Test_Params of
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bulwahn@40892
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{default_type: typ list, expect : expectation};
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haftmann@28309
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bulwahn@40892
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fun dest_test_params (Test_Params {default_type, expect}) = (default_type, expect);
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wenzelm@39034
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wenzelm@41765
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fun make_test_params (default_type, expect) =
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wenzelm@41765
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Test_Params {default_type = default_type, expect = expect};
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wenzelm@39034
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wenzelm@41765
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fun map_test_params' f (Test_Params {default_type, expect}) =
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wenzelm@41765
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make_test_params (f (default_type, expect));
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wenzelm@39034
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wenzelm@39034
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fun merge_test_params
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wenzelm@41720
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(Test_Params {default_type = default_type1, expect = expect1},
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wenzelm@41720
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Test_Params {default_type = default_type2, expect = expect2}) =
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wenzelm@41720
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make_test_params
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wenzelm@41720
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(merge (op =) (default_type1, default_type2), merge_expectation (expect1, expect2));
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haftmann@28309
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bulwahn@44749
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type tester =
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bulwahn@46290
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Proof.context -> bool -> (string * typ) list -> (term * term list) list -> result list
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bulwahn@44749
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199 |
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bulwahn@39479
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200 |
structure Data = Generic_Data
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wenzelm@33522
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201 |
(
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wenzelm@39034
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type T =
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bulwahn@44749
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((string * (bool Config.T * tester)) list
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bulwahn@43065
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* ((string * (Proof.context -> term list -> (int -> term list option) list)) list
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bulwahn@43065
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* ((string * (Proof.context -> term list -> (int -> bool) list)) list)))
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wenzelm@39034
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206 |
* test_params;
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bulwahn@44748
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207 |
val empty = (([], ([], [])), Test_Params {default_type = [], expect = No_Expectation});
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haftmann@28256
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208 |
val extend = I;
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bulwahn@44748
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209 |
fun merge (((testers1, (batch_generators1, batch_validators1)), params1),
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bulwahn@44748
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210 |
((testers2, (batch_generators2, batch_validators2)), params2)) : T =
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bulwahn@44748
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211 |
((AList.merge (op =) (K true) (testers1, testers2),
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bulwahn@43953
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(AList.merge (op =) (K true) (batch_generators1, batch_generators2),
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bulwahn@43953
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AList.merge (op =) (K true) (batch_validators1, batch_validators2))),
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haftmann@28309
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214 |
merge_test_params (params1, params2));
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wenzelm@33522
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);
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haftmann@28256
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216 |
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bulwahn@39479
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217 |
val test_params_of = snd o Data.get o Context.Proof;
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bulwahn@38150
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218 |
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bulwahn@40892
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219 |
val default_type = fst o dest_test_params o test_params_of
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bulwahn@40481
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220 |
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bulwahn@40892
|
221 |
val expect = snd o dest_test_params o test_params_of
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bulwahn@40481
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222 |
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bulwahn@40481
|
223 |
val map_test_params = Data.map o apsnd o map_test_params'
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bulwahn@39480
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224 |
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bulwahn@44748
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225 |
val add_tester = Data.map o apfst o apfst o AList.update (op =);
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bulwahn@42733
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226 |
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bulwahn@43065
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227 |
val add_batch_generator = Data.map o apfst o apsnd o apfst o AList.update (op =);
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bulwahn@43065
|
228 |
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bulwahn@43065
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229 |
val add_batch_validator = Data.map o apfst o apsnd o apsnd o AList.update (op =);
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haftmann@28256
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230 |
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bulwahn@44752
|
231 |
fun active_testers ctxt =
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bulwahn@44752
|
232 |
let
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bulwahn@44752
|
233 |
val testers = (map snd o fst o fst o Data.get o Context.Proof) ctxt
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bulwahn@44752
|
234 |
in
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bulwahn@44752
|
235 |
map snd (filter (fn (active, _) => Config.get ctxt active) testers)
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bulwahn@44752
|
236 |
end
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bulwahn@44752
|
237 |
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bulwahn@44755
|
238 |
fun set_active_testers [] gen_ctxt = gen_ctxt
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bulwahn@44755
|
239 |
| set_active_testers testers gen_ctxt =
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bulwahn@44752
|
240 |
let
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bulwahn@44752
|
241 |
val registered_testers = (fst o fst o Data.get) gen_ctxt
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bulwahn@44752
|
242 |
in
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bulwahn@44752
|
243 |
fold (fn (name, (config, _)) => Config.put_generic config (member (op =) testers name))
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bulwahn@44752
|
244 |
registered_testers gen_ctxt
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bulwahn@44752
|
245 |
end
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bulwahn@44752
|
246 |
|
haftmann@28315
|
247 |
(* generating tests *)
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haftmann@28315
|
248 |
|
bulwahn@42733
|
249 |
fun gen_mk_tester lookup ctxt v =
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haftmann@28309
|
250 |
let
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bulwahn@44753
|
251 |
val name = Config.get ctxt batch_tester
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bulwahn@42733
|
252 |
val tester = case lookup ctxt name
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bulwahn@44753
|
253 |
of NONE => error ("No such quickcheck batch-tester: " ^ name)
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bulwahn@41153
|
254 |
| SOME tester => tester ctxt;
|
wenzelm@40491
|
255 |
in
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bulwahn@41153
|
256 |
if Config.get ctxt quiet then
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bulwahn@42733
|
257 |
try tester v
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bulwahn@41153
|
258 |
else
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wenzelm@44633
|
259 |
let (* FIXME !?!? *)
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bulwahn@42733
|
260 |
val tester = Exn.interruptible_capture tester v
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wenzelm@44633
|
261 |
in case Exn.get_res tester of
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bulwahn@41153
|
262 |
NONE => SOME (Exn.release tester)
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bulwahn@41153
|
263 |
| SOME tester => SOME tester
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bulwahn@41153
|
264 |
end
|
bulwahn@41153
|
265 |
end
|
bulwahn@44753
|
266 |
|
bulwahn@43065
|
267 |
val mk_batch_tester =
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bulwahn@43065
|
268 |
gen_mk_tester (fn ctxt => AList.lookup (op =) ((fst o snd o fst o Data.get o Context.Proof) ctxt))
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bulwahn@43065
|
269 |
val mk_batch_validator =
|
bulwahn@43065
|
270 |
gen_mk_tester (fn ctxt => AList.lookup (op =) ((snd o snd o fst o Data.get o Context.Proof) ctxt))
|
bulwahn@43953
|
271 |
|
bulwahn@44748
|
272 |
fun lookup_tester ctxt = AList.lookup (op =) ((fst o fst o Data.get o Context.Proof) ctxt)
|
bulwahn@43953
|
273 |
|
haftmann@28315
|
274 |
(* testing propositions *)
|
haftmann@28315
|
275 |
|
bulwahn@44747
|
276 |
type compile_generator =
|
bulwahn@44747
|
277 |
Proof.context -> (term * term list) list -> int list -> term list option * report option
|
bulwahn@44747
|
278 |
|
bulwahn@44456
|
279 |
fun limit timeout (limit_time, is_interactive) f exc () =
|
bulwahn@42625
|
280 |
if limit_time then
|
bulwahn@44456
|
281 |
TimeLimit.timeLimit timeout f ()
|
bulwahn@42625
|
282 |
handle TimeLimit.TimeOut =>
|
bulwahn@42625
|
283 |
if is_interactive then exc () else raise TimeLimit.TimeOut
|
bulwahn@42625
|
284 |
else
|
bulwahn@42625
|
285 |
f ()
|
bulwahn@42624
|
286 |
|
bulwahn@44786
|
287 |
fun message ctxt s = if Config.get ctxt quiet then () else Output.urgent_message s
|
bulwahn@44749
|
288 |
|
bulwahn@46029
|
289 |
fun test_terms ctxt (limit_time, is_interactive) insts goals =
|
bulwahn@44749
|
290 |
case active_testers ctxt of
|
bulwahn@44752
|
291 |
[] => error "No active testers for quickcheck"
|
bulwahn@44786
|
292 |
| testers => limit (seconds (Config.get ctxt timeout)) (limit_time, is_interactive)
|
bulwahn@44786
|
293 |
(fn () => Par_List.get_some (fn tester =>
|
bulwahn@46290
|
294 |
tester ctxt (length testers > 1) insts goals |>
|
bulwahn@44786
|
295 |
(fn result => if exists found_counterexample result then SOME result else NONE)) testers)
|
bulwahn@44786
|
296 |
(fn () => (message ctxt "Quickcheck ran out of time"; NONE)) ();
|
bulwahn@44786
|
297 |
|
bulwahn@42897
|
298 |
fun test_goal (time_limit, is_interactive) (insts, eval_terms) i state =
|
bulwahn@40896
|
299 |
let
|
bulwahn@40896
|
300 |
val lthy = Proof.context_of state;
|
bulwahn@40896
|
301 |
val thy = Proof.theory_of state;
|
bulwahn@40896
|
302 |
fun strip (Const ("all", _) $ Abs (_, _, t)) = strip t
|
bulwahn@40896
|
303 |
| strip t = t;
|
bulwahn@40896
|
304 |
val {goal = st, ...} = Proof.raw_goal state;
|
bulwahn@40896
|
305 |
val (gi, frees) = Logic.goal_params (prop_of st) i;
|
bulwahn@40896
|
306 |
val some_locale = case (Option.map #target o Named_Target.peek) lthy
|
bulwahn@40896
|
307 |
of NONE => NONE
|
bulwahn@40896
|
308 |
| SOME "" => NONE
|
bulwahn@40896
|
309 |
| SOME locale => SOME locale;
|
bulwahn@40896
|
310 |
val assms = if Config.get lthy no_assms then [] else case some_locale
|
bulwahn@40896
|
311 |
of NONE => Assumption.all_assms_of lthy
|
bulwahn@40896
|
312 |
| SOME locale => Assumption.local_assms_of lthy (Locale.init locale thy);
|
bulwahn@40896
|
313 |
val proto_goal = Logic.list_implies (map Thm.term_of assms, subst_bounds (frees, strip gi));
|
bulwahn@43954
|
314 |
val goals = case some_locale
|
bulwahn@42897
|
315 |
of NONE => [(proto_goal, eval_terms)]
|
bulwahn@42897
|
316 |
| SOME locale =>
|
bulwahn@42897
|
317 |
map (fn (_, phi) => (Morphism.term phi proto_goal, map (Morphism.term phi) eval_terms))
|
bulwahn@42897
|
318 |
(Locale.registrations_of (Context.Theory thy) (*FIXME*) locale);
|
bulwahn@40896
|
319 |
in
|
bulwahn@46029
|
320 |
test_terms lthy (time_limit, is_interactive) insts goals
|
bulwahn@40896
|
321 |
end
|
bulwahn@40896
|
322 |
|
bulwahn@38152
|
323 |
(* pretty printing *)
|
haftmann@28315
|
324 |
|
blanchet@40466
|
325 |
fun tool_name auto = (if auto then "Auto " else "") ^ "Quickcheck"
|
blanchet@40466
|
326 |
|
blanchet@40466
|
327 |
fun pretty_counterex ctxt auto NONE = Pretty.str (tool_name auto ^ " found no counterexample.")
|
bulwahn@42899
|
328 |
| pretty_counterex ctxt auto (SOME (cex, eval_terms)) =
|
bulwahn@42899
|
329 |
Pretty.chunks ((Pretty.str (tool_name auto ^ " found a counterexample:\n") ::
|
haftmann@28315
|
330 |
map (fn (s, t) =>
|
bulwahn@42899
|
331 |
Pretty.block [Pretty.str (s ^ " ="), Pretty.brk 1, Syntax.pretty_term ctxt t]) (rev cex))
|
blanchet@43861
|
332 |
@ (if null eval_terms then []
|
bulwahn@46029
|
333 |
else (Pretty.fbrk :: Pretty.str ("Evaluated terms:") ::
|
blanchet@43861
|
334 |
map (fn (t, u) =>
|
bulwahn@44752
|
335 |
Pretty.block [Syntax.pretty_term ctxt t, Pretty.str " =", Pretty.brk 1,
|
bulwahn@44752
|
336 |
Syntax.pretty_term ctxt u]) (rev eval_terms))));
|
haftmann@28315
|
337 |
|
bulwahn@35378
|
338 |
fun pretty_report (Report {iterations = iterations, raised_match_errors = raised_match_errors,
|
bulwahn@35378
|
339 |
satisfied_assms = satisfied_assms, positive_concl_tests = positive_concl_tests}) =
|
bulwahn@35378
|
340 |
let
|
bulwahn@35378
|
341 |
fun pretty_stat s i = Pretty.block ([Pretty.str (s ^ ": " ^ string_of_int i)])
|
bulwahn@35378
|
342 |
in
|
bulwahn@35378
|
343 |
([pretty_stat "iterations" iterations,
|
bulwahn@35378
|
344 |
pretty_stat "match exceptions" raised_match_errors]
|
wenzelm@41765
|
345 |
@ map_index
|
wenzelm@41765
|
346 |
(fn (i, n) => pretty_stat ("satisfied " ^ string_of_int (i + 1) ^ ". assumption") n)
|
bulwahn@35378
|
347 |
satisfied_assms
|
bulwahn@35378
|
348 |
@ [pretty_stat "positive conclusion tests" positive_concl_tests])
|
bulwahn@35378
|
349 |
end
|
bulwahn@35378
|
350 |
|
bulwahn@35380
|
351 |
fun pretty_reports ctxt (SOME reports) =
|
bulwahn@41160
|
352 |
Pretty.chunks (Pretty.fbrk :: Pretty.str "Quickcheck report:" ::
|
bulwahn@41153
|
353 |
maps (fn (size, report) =>
|
bulwahn@41153
|
354 |
Pretty.str ("size " ^ string_of_int size ^ ":") :: pretty_report report @ [Pretty.brk 1])
|
bulwahn@35378
|
355 |
(rev reports))
|
bulwahn@35380
|
356 |
| pretty_reports ctxt NONE = Pretty.str ""
|
bulwahn@35378
|
357 |
|
bulwahn@42952
|
358 |
fun pretty_timings timings =
|
bulwahn@42952
|
359 |
Pretty.chunks (Pretty.fbrk :: Pretty.str "timings:" ::
|
bulwahn@42952
|
360 |
maps (fn (label, time) =>
|
bulwahn@42952
|
361 |
Pretty.str (label ^ ": " ^ string_of_int time ^ " ms") :: Pretty.brk 1 :: []) (rev timings))
|
bulwahn@42952
|
362 |
|
bulwahn@43299
|
363 |
fun pretty_counterex_and_reports ctxt auto [] =
|
bulwahn@43299
|
364 |
Pretty.chunks [Pretty.strs (tool_name auto ::
|
bulwahn@43299
|
365 |
space_explode " " "is used in a locale where no interpretation is provided."),
|
bulwahn@43299
|
366 |
Pretty.strs (space_explode " " "Please provide an executable interpretation for the locale.")]
|
bulwahn@43299
|
367 |
| pretty_counterex_and_reports ctxt auto (result :: _) =
|
bulwahn@43299
|
368 |
Pretty.chunks (pretty_counterex ctxt auto (response_of result) ::
|
bulwahn@43299
|
369 |
(* map (pretty_reports ctxt) (reports_of result) :: *)
|
bulwahn@43299
|
370 |
(if Config.get ctxt timing then cons (pretty_timings (timings_of result)) else I) [])
|
haftmann@28315
|
371 |
|
wenzelm@30981
|
372 |
(* Isar commands *)
|
haftmann@28315
|
373 |
|
haftmann@28336
|
374 |
fun read_nat s = case (Library.read_int o Symbol.explode) s
|
haftmann@28336
|
375 |
of (k, []) => if k >= 0 then k
|
haftmann@28336
|
376 |
else error ("Not a natural number: " ^ s)
|
haftmann@28336
|
377 |
| (_, _ :: _) => error ("Not a natural number: " ^ s);
|
bulwahn@38149
|
378 |
|
blanchet@34125
|
379 |
fun read_bool "false" = false
|
blanchet@34125
|
380 |
| read_bool "true" = true
|
blanchet@34125
|
381 |
| read_bool s = error ("Not a Boolean value: " ^ s)
|
haftmann@28315
|
382 |
|
bulwahn@40612
|
383 |
fun read_real s =
|
bulwahn@40612
|
384 |
case (Real.fromString s) of
|
bulwahn@40612
|
385 |
SOME s => s
|
bulwahn@40612
|
386 |
| NONE => error ("Not a real number: " ^ s)
|
bulwahn@40612
|
387 |
|
bulwahn@38169
|
388 |
fun read_expectation "no_expectation" = No_Expectation
|
wenzelm@41765
|
389 |
| read_expectation "no_counterexample" = No_Counterexample
|
bulwahn@38169
|
390 |
| read_expectation "counterexample" = Counterexample
|
wenzelm@41765
|
391 |
| read_expectation s = error ("Not an expectation value: " ^ s)
|
bulwahn@38169
|
392 |
|
bulwahn@44748
|
393 |
fun valid_tester_name genctxt name = AList.defined (op =) (fst (fst (Data.get genctxt))) name
|
bulwahn@44748
|
394 |
|
bulwahn@44752
|
395 |
fun parse_tester name (testers, genctxt) =
|
bulwahn@41156
|
396 |
if valid_tester_name genctxt name then
|
bulwahn@44752
|
397 |
(insert (op =) name testers, genctxt)
|
bulwahn@41156
|
398 |
else
|
bulwahn@41156
|
399 |
error ("Unknown tester: " ^ name)
|
bulwahn@41156
|
400 |
|
bulwahn@44752
|
401 |
fun parse_test_param ("tester", args) = fold parse_tester args
|
bulwahn@44752
|
402 |
| parse_test_param ("size", [arg]) = apsnd (Config.put_generic size (read_nat arg))
|
bulwahn@44752
|
403 |
| parse_test_param ("iterations", [arg]) = apsnd (Config.put_generic iterations (read_nat arg))
|
bulwahn@46084
|
404 |
| parse_test_param ("depth", [arg]) = apsnd (Config.put_generic depth (read_nat arg))
|
bulwahn@44752
|
405 |
| parse_test_param ("default_type", arg) = (fn (testers, gen_ctxt) =>
|
bulwahn@44752
|
406 |
(testers, map_test_params
|
bulwahn@44752
|
407 |
((apfst o K) (map (Proof_Context.read_typ (Context.proof_of gen_ctxt)) arg)) gen_ctxt))
|
bulwahn@44752
|
408 |
| parse_test_param ("no_assms", [arg]) = apsnd (Config.put_generic no_assms (read_bool arg))
|
bulwahn@44752
|
409 |
| parse_test_param ("expect", [arg]) = apsnd (map_test_params ((apsnd o K) (read_expectation arg)))
|
bulwahn@44752
|
410 |
| parse_test_param ("report", [arg]) = apsnd (Config.put_generic report (read_bool arg))
|
bulwahn@44752
|
411 |
| parse_test_param ("quiet", [arg]) = apsnd (Config.put_generic quiet (read_bool arg))
|
bulwahn@44752
|
412 |
| parse_test_param ("timeout", [arg]) = apsnd (Config.put_generic timeout (read_real arg))
|
bulwahn@44752
|
413 |
| parse_test_param ("finite_types", [arg]) = apsnd (Config.put_generic finite_types (read_bool arg))
|
bulwahn@46320
|
414 |
| parse_test_param ("allow_function_inversion", [arg]) =
|
bulwahn@46320
|
415 |
apsnd (Config.put_generic allow_function_inversion (read_bool arg))
|
wenzelm@41765
|
416 |
| parse_test_param ("finite_type_size", [arg]) =
|
bulwahn@44752
|
417 |
apsnd (Config.put_generic finite_type_size (read_nat arg))
|
bulwahn@44752
|
418 |
| parse_test_param (name, _) = (fn (testers, genctxt) =>
|
bulwahn@41156
|
419 |
if valid_tester_name genctxt name then
|
bulwahn@44752
|
420 |
(insert (op =) name testers, genctxt)
|
bulwahn@44752
|
421 |
else error ("Unknown tester or test parameter: " ^ name));
|
haftmann@28315
|
422 |
|
bulwahn@44752
|
423 |
fun proof_map_result f = apsnd Context.the_proof o f o Context.Proof;
|
bulwahn@44752
|
424 |
|
bulwahn@44752
|
425 |
fun parse_test_param_inst (name, arg) ((insts, eval_terms), (testers, ctxt)) =
|
wenzelm@43232
|
426 |
case try (Proof_Context.read_typ ctxt) name
|
bulwahn@42896
|
427 |
of SOME (TFree (v, _)) =>
|
bulwahn@44752
|
428 |
((AList.update (op =) (v, Proof_Context.read_typ ctxt (the_single arg)) insts, eval_terms),
|
bulwahn@44752
|
429 |
(testers, ctxt))
|
bulwahn@42896
|
430 |
| NONE => (case name of
|
bulwahn@44752
|
431 |
"eval" => ((insts, eval_terms @ map (Syntax.read_term ctxt) arg), (testers, ctxt))
|
bulwahn@44752
|
432 |
| _ => ((insts, eval_terms),
|
bulwahn@44752
|
433 |
proof_map_result (fn gen_ctxt => parse_test_param (name, arg) (testers, gen_ctxt)) ctxt));
|
haftmann@28315
|
434 |
|
bulwahn@44752
|
435 |
fun quickcheck_params_cmd args = Context.theory_map
|
bulwahn@44752
|
436 |
(fn gen_ctxt => uncurry set_active_testers (fold parse_test_param args ([], gen_ctxt)));
|
wenzelm@41765
|
437 |
|
bulwahn@42952
|
438 |
fun check_expectation state results =
|
bulwahn@44750
|
439 |
(if is_some results andalso expect (Proof.context_of state) = No_Counterexample
|
bulwahn@42952
|
440 |
then
|
bulwahn@42952
|
441 |
error ("quickcheck expected to find no counterexample but found one")
|
bulwahn@42952
|
442 |
else
|
bulwahn@44750
|
443 |
(if is_none results andalso expect (Proof.context_of state) = Counterexample
|
bulwahn@42952
|
444 |
then
|
bulwahn@42952
|
445 |
error ("quickcheck expected to find a counterexample but did not find one")
|
bulwahn@42952
|
446 |
else ()))
|
bulwahn@42952
|
447 |
|
bulwahn@35378
|
448 |
fun gen_quickcheck args i state =
|
bulwahn@40892
|
449 |
state
|
bulwahn@44752
|
450 |
|> Proof.map_context_result (fn ctxt =>
|
bulwahn@44752
|
451 |
apsnd (fn (testers, ctxt) => Context.proof_map (set_active_testers testers) ctxt)
|
bulwahn@44752
|
452 |
(fold parse_test_param_inst args (([], []), ([], ctxt))))
|
bulwahn@42897
|
453 |
|> (fn ((insts, eval_terms), state') => test_goal (true, true) (insts, eval_terms) i state'
|
bulwahn@42952
|
454 |
|> tap (check_expectation state'))
|
boehmes@32295
|
455 |
|
bulwahn@44750
|
456 |
fun quickcheck args i state =
|
bulwahn@44750
|
457 |
Option.map (the o get_first counterexample_of) (gen_quickcheck args i state)
|
bulwahn@35378
|
458 |
|
boehmes@32295
|
459 |
fun quickcheck_cmd args i state =
|
bulwahn@35378
|
460 |
gen_quickcheck args i (Toplevel.proof_of state)
|
bulwahn@44750
|
461 |
|> Option.map (the o get_first response_of)
|
blanchet@43861
|
462 |
|> Output.urgent_message o Pretty.string_of
|
bulwahn@44750
|
463 |
o pretty_counterex (Toplevel.context_of state) false;
|
haftmann@28309
|
464 |
|
wenzelm@41765
|
465 |
val parse_arg =
|
wenzelm@41765
|
466 |
Parse.name --
|
wenzelm@41765
|
467 |
(Scan.optional (Parse.$$$ "=" |--
|
wenzelm@41765
|
468 |
(((Parse.name || Parse.float_number) >> single) ||
|
wenzelm@41765
|
469 |
(Parse.$$$ "[" |-- Parse.list1 Parse.name --| Parse.$$$ "]"))) ["true"]);
|
haftmann@28309
|
470 |
|
wenzelm@41765
|
471 |
val parse_args =
|
wenzelm@41765
|
472 |
Parse.$$$ "[" |-- Parse.list1 parse_arg --| Parse.$$$ "]" || Scan.succeed [];
|
haftmann@28336
|
473 |
|
wenzelm@36970
|
474 |
val _ =
|
blanchet@43861
|
475 |
Outer_Syntax.command quickcheck_paramsN "set parameters for random testing" Keyword.thy_decl
|
wenzelm@36970
|
476 |
(parse_args >> (fn args => Toplevel.theory (quickcheck_params_cmd args)));
|
haftmann@28309
|
477 |
|
wenzelm@36970
|
478 |
val _ =
|
blanchet@43861
|
479 |
Outer_Syntax.improper_command quickcheckN "try to find counterexample for subgoal" Keyword.diag
|
wenzelm@36970
|
480 |
(parse_args -- Scan.optional Parse.nat 1
|
wenzelm@36970
|
481 |
>> (fn (args, i) => Toplevel.no_timing o Toplevel.keep (quickcheck_cmd args i)));
|
haftmann@28309
|
482 |
|
blanchet@43861
|
483 |
(* automatic testing *)
|
blanchet@43861
|
484 |
|
blanchet@43861
|
485 |
fun try_quickcheck auto state =
|
blanchet@43861
|
486 |
let
|
blanchet@43861
|
487 |
val ctxt = Proof.context_of state;
|
blanchet@43861
|
488 |
val i = 1;
|
blanchet@43861
|
489 |
val res =
|
blanchet@43861
|
490 |
state
|
blanchet@43861
|
491 |
|> Proof.map_context (Config.put report false #> Config.put quiet true)
|
blanchet@43861
|
492 |
|> try (test_goal (false, false) ([], []) i);
|
blanchet@43861
|
493 |
in
|
blanchet@43861
|
494 |
case res of
|
blanchet@43861
|
495 |
NONE => (unknownN, state)
|
blanchet@43861
|
496 |
| SOME results =>
|
blanchet@43861
|
497 |
let
|
bulwahn@44750
|
498 |
val msg = pretty_counterex ctxt auto (Option.map (the o get_first response_of) results)
|
blanchet@43861
|
499 |
in
|
bulwahn@44750
|
500 |
if is_some results then
|
blanchet@43861
|
501 |
(genuineN,
|
blanchet@43870
|
502 |
state
|
blanchet@43870
|
503 |
|> (if auto then
|
blanchet@43870
|
504 |
Proof.goal_message (K (Pretty.chunks [Pretty.str "",
|
blanchet@43870
|
505 |
Pretty.mark Markup.hilite msg]))
|
blanchet@43870
|
506 |
else
|
blanchet@43870
|
507 |
tap (fn _ => Output.urgent_message (Pretty.string_of msg))))
|
blanchet@43861
|
508 |
else
|
blanchet@43861
|
509 |
(noneN, state)
|
blanchet@43861
|
510 |
end
|
blanchet@43861
|
511 |
end
|
blanchet@43861
|
512 |
|> `(fn (outcome_code, _) => outcome_code = genuineN)
|
blanchet@43861
|
513 |
|
blanchet@43870
|
514 |
val setup = Try.register_tool (quickcheckN, (20, auto, try_quickcheck))
|
blanchet@43861
|
515 |
|
haftmann@28309
|
516 |
end;
|
haftmann@28256
|
517 |
|
haftmann@28315
|
518 |
val auto_quickcheck = Quickcheck.auto;
|