author  wenzelm 
Mon, 07 Oct 2013 21:24:44 +0200  
changeset 54313  da2e6282a4f5 
parent 52694  da646aa4a3bb 
child 55627  95c8ef02f04b 
permissions  rwrr 
30824  1 
(* 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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(*configuration*) 
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val batch_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 depth : 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 timeout : real Config.T 
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val timing : bool Config.T 
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val genuine_only : bool Config.T 
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val abort_potential : bool Config.T 
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val quiet : bool Config.T 
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val verbose : bool Config.T 
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val use_subtype : bool Config.T 
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val allow_function_inversion : bool 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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val tag : string Config.T 
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val locale : string Config.T 
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val set_active_testers: string list > Context.generic > Context.generic 
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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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val default_type : Proof.context > typ list 
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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 : (bool * (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 found_counterexample : result > bool 
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val add_timing : (string * int) > result Unsynchronized.ref > unit 
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val add_response : string list > term list > (bool * term list) option > 
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result Unsynchronized.ref > unit 

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val add_report : int > report option > result Unsynchronized.ref > unit 
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val counterexample_of : result > (bool * (string * term) list) option 
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val timings_of : result > (string * int) list 
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(*registering testers & generators*) 
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type tester = 
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Proof.context > bool > (string * typ) list > (term * term list) list > result list 
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val add_tester : string * (bool Config.T * tester) > 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 message : Proof.context > string > unit 
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val verbose_message : Proof.context > string > unit 
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val limit : Time.time > (bool * bool) > (unit > 'a) > (unit > 'a) > unit > 'a 
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val pretty_counterex : Proof.context > bool > 
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((bool * (string * term) list) * (term * term) list) option > Pretty.T 
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(*testing terms and proof states*) 
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val mk_batch_validator : Proof.context > term list > (int > bool) list option 
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val mk_batch_tester : Proof.context > term list > (int > term list option) list option 
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val active_testers : Proof.context > tester list 
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val test_terms : Proof.context > bool * bool > (string * typ) list > 
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(term * term list) list > result list option 

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val quickcheck: (string * string list) list > int > Proof.state > 

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(bool * (string * term) list) option 

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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 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 _ = 

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ProofGeneral.preference_option ProofGeneral.category_tracing 
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NONE 
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@{option auto_quickcheck} 
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"autoquickcheck" 
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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 : (bool * (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_response names eval_terms (SOME (genuine, ts)) (Result r) = 
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let 
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val (ts1, ts2) = chop (length names) ts 
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val (eval_terms', _) = chop (length ts2) eval_terms 
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in 
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Result {counterexample = SOME (genuine, (names ~~ ts1)), 
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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_response _ _ NONE result = result 
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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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155 

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fun add_response names eval_terms response result_ref = 
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Unsynchronized.change result_ref (set_response names eval_terms response) 
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(* expectation *) 
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41517  162 
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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51302  167 
(*quickcheck configuration  default parameters, test generators*) 
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val batch_tester = Attrib.setup_config_string @{binding quickcheck_batch_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) 
45213  171 
val depth = Attrib.setup_config_int @{binding quickcheck_depth} (K 10) 
172 

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val no_assms = Attrib.setup_config_bool @{binding quickcheck_no_assms} (K false) 
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val locale = Attrib.setup_config_string @{binding quickcheck_locale} (K "interpret expand") 
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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 timeout = Attrib.setup_config_real @{binding quickcheck_timeout} (K 30.0) 
178 

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val genuine_only = Attrib.setup_config_bool @{binding quickcheck_genuine_only} (K false) 
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val abort_potential = Attrib.setup_config_bool @{binding quickcheck_abort_potential} (K false) 
46565  181 

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val quiet = Attrib.setup_config_bool @{binding quickcheck_quiet} (K false) 
45764  183 
val verbose = Attrib.setup_config_bool @{binding quickcheck_verbose} (K false) 
46863  184 
val tag = Attrib.setup_config_string @{binding quickcheck_tag} (K "") 
46565  185 

186 
val use_subtype = Attrib.setup_config_bool @{binding quickcheck_use_subtype} (K false) 

187 

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val allow_function_inversion = 
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Attrib.setup_config_bool @{binding quickcheck_allow_function_inversion} (K false) 
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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) 
40646  192 

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datatype test_params = Test_Params of 
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{default_type: typ list, expect : expectation}; 
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195 

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fun dest_test_params (Test_Params {default_type, expect}) = (default_type, expect); 
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41517  198 
fun make_test_params (default_type, expect) = 
199 
Test_Params {default_type = default_type, expect = expect}; 

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41517  201 
fun map_test_params' f (Test_Params {default_type, expect}) = 
202 
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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type tester = 
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Proof.context > bool > (string * typ) list > (term * term list) list > result list; 
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212 

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structure Data = Generic_Data 
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( 
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type T = 
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((string * (bool Config.T * tester)) 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; 
43877  222 
fun merge (((testers1, (batch_generators1, batch_validators1)), params1), 
223 
((testers2, (batch_generators2, batch_validators2)), params2)) : T = 

224 
((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))), 
28309  227 
merge_test_params (params1, params2)); 
33522  228 
); 
28256  229 

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val test_params_of = snd o Data.get o Context.Proof; 
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231 

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val default_type = fst o dest_test_params o test_params_of 
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233 

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val expect = snd o dest_test_params o test_params_of 
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235 

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val map_test_params = Data.map o apsnd o map_test_params' 
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43877  238 
val add_tester = Data.map o apfst o apfst o AList.update (op =); 
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239 

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val add_batch_generator = Data.map o apfst o apsnd o apfst o AList.update (op =); 
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241 

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val add_batch_validator = Data.map o apfst o apsnd o apsnd o AList.update (op =); 
28309  243 

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fun active_testers ctxt = 
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let 
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val testers = (map snd o fst o fst o Data.get o Context.Proof) ctxt 
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in 
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map snd (filter (fn (active, _) => Config.get ctxt active) testers) 
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end 
51302  250 

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fun set_active_testers [] gen_ctxt = gen_ctxt 
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 set_active_testers testers gen_ctxt = 
51302  253 
let 
254 
val registered_testers = (fst o fst o Data.get) gen_ctxt 

255 
in 

256 
fold (fn (name, (config, _)) => Config.put_generic config (member (op =) testers name)) 

257 
registered_testers gen_ctxt 

258 
end; 

259 

260 

28315  261 
(* generating tests *) 
262 

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fun gen_mk_tester lookup ctxt v = 
28309  264 
let 
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val name = Config.get ctxt batch_tester 
51302  266 
val tester = 
267 
(case lookup ctxt name of 

268 
NONE => error ("No such quickcheck batchtester: " ^ name) 

269 
 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 (* FIXME !?!? *) 
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val tester = Exn.interruptible_capture tester v 
51302  276 
in 
277 
(case Exn.get_res tester of 

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NONE => SOME (Exn.release tester) 
51302  279 
 SOME tester => SOME tester) 
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end 
51302  281 
end; 
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282 

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val mk_batch_tester = 
51302  284 
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 = 
51302  286 
gen_mk_tester (fn ctxt => AList.lookup (op =) ((snd o snd o fst o Data.get o Context.Proof) ctxt)); 
287 

288 

28315  289 
(* testing propositions *) 
290 

43876  291 
type compile_generator = 
51302  292 
Proof.context > (term * term list) list > int list > term list option * report option; 
43876  293 

43585  294 
fun limit timeout (limit_time, is_interactive) f exc () = 
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if limit_time then 
43585  296 
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 
51302  300 
f (); 
301 

302 
fun message ctxt s = if Config.get ctxt quiet then () else Output.urgent_message s; 

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51302  304 
fun verbose_message ctxt s = 
305 
if not (Config.get ctxt quiet) andalso Config.get ctxt verbose 

306 
then Output.urgent_message s else (); 

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307 

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fun test_terms ctxt (limit_time, is_interactive) insts goals = 
51302  309 
(case active_testers ctxt of 
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[] => error "No active testers for quickcheck" 
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 testers => 
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limit (seconds (Config.get ctxt timeout)) (limit_time, is_interactive) 
43915  313 
(fn () => Par_List.get_some (fn tester => 
51302  314 
tester ctxt (length testers > 1) insts goals > 
315 
(fn result => if exists found_counterexample result then SOME result else NONE)) testers) 

316 
(fn () => (message ctxt "Quickcheck ran out of time"; NONE)) ()); 

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fun all_axioms_of ctxt t = 
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let 
51302  320 
val intros = Locale.get_intros ctxt; 
321 
val unfolds = Locale.get_unfolds ctxt; 

322 
fun retrieve_prems thms t = 

323 
(case filter (fn th => Term.could_unify (Thm.concl_of th, t)) thms of 

324 
[] => NONE 

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 [th] => 
51302  326 
let 
327 
val (tyenv, tenv) = 

328 
Pattern.match (Proof_Context.theory_of ctxt) 

329 
(Thm.concl_of th, t) (Vartab.empty, Vartab.empty) 

330 
in SOME (map (Envir.subst_term (tyenv, tenv)) (Thm.prems_of th)) end); 

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fun all t = 
51302  332 
(case retrieve_prems intros t of 
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333 
NONE => retrieve_prems unfolds t 
51302  334 
 SOME ts => SOME (maps (fn t => the_default [t] (all t)) ts)); 
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335 
in 
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336 
all t 
51302  337 
end; 
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changeset

338 

47348
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339 
fun locale_config_of s = 
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changeset

340 
let 
51302  341 
val cs = space_explode " " s; 
47348
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342 
in 
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343 
if forall (fn c => c = "expand" orelse c = "interpret") cs then cs 
47383  344 
else (warning ("Invalid quickcheck_locale setting: falling back to the default setting."); 
47348
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345 
["interpret", "expand"]) 
51302  346 
end; 
47348
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347 

42026
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348 
fun test_goal (time_limit, is_interactive) (insts, eval_terms) i state = 
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349 
let 
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350 
val lthy = Proof.context_of state; 
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351 
val thy = Proof.theory_of state; 
45765
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352 
val _ = message lthy "Quickchecking..." 
40648
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353 
fun strip (Const ("all", _) $ Abs (_, _, t)) = strip t 
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354 
 strip t = t; 
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355 
val {goal = st, ...} = Proof.raw_goal state; 
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356 
val (gi, frees) = Logic.goal_params (prop_of st) i; 
51302  357 
val some_locale = 
358 
(case (Option.map #target o Named_Target.peek) lthy of 

359 
NONE => NONE 

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changeset

360 
 SOME "" => NONE 
51302  361 
 SOME locale => SOME locale); 
362 
val assms = 

363 
if Config.get lthy no_assms then [] 

364 
else 

365 
(case some_locale of 

366 
NONE => Assumption.all_assms_of lthy 

367 
 SOME locale => Assumption.local_assms_of lthy (Locale.init locale thy)); 

40648
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changeset

368 
val proto_goal = Logic.list_implies (map Thm.term_of assms, subst_bounds (frees, strip gi)); 
51302  369 
fun axioms_of locale = 
370 
(case fst (Locale.specification_of thy locale) of 

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371 
NONE => [] 
51302  372 
 SOME t => the_default [] (all_axioms_of lthy t)); 
373 
val config = locale_config_of (Config.get lthy locale); 

374 
val goals = 

375 
(case some_locale of 

376 
NONE => [(proto_goal, eval_terms)] 

377 
 SOME locale => 

378 
fold (fn c => 

379 
if c = "expand" then cons (Logic.list_implies (axioms_of locale, proto_goal), eval_terms) 

380 
else if c = "interpret" then 

381 
append (map (fn (_, phi) => 

382 
(Morphism.term phi proto_goal, map (Morphism.term phi) eval_terms)) 

383 
(Locale.registrations_of (Context.Theory thy) (*FIXME*) locale)) 

384 
else I) config []); 

385 
val _ = 

386 
verbose_message lthy 

387 
(Pretty.string_of 

388 
(Pretty.big_list ("Checking goals: ") (map (Syntax.pretty_term lthy o fst) goals))); 

40648
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changeset

389 
in 
45159
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moving some common functions from quickcheck to the more HOLspecific quickcheck_common; renamed inductive_SML's configurations to more canonical names; adds automatically left and right hand sides of equations as evaluation terms
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changeset

390 
test_terms lthy (time_limit, is_interactive) insts goals 
51302  391 
end; 
392 

40648
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393 

37912  394 
(* pretty printing *) 
28315  395 

51302  396 
fun tool_name auto = (if auto then "Auto " else "") ^ "Quickcheck"; 
40225  397 

46863  398 
fun pretty_counterex ctxt auto NONE = 
399 
Pretty.str (tool_name auto ^ " found no counterexample." ^ Config.get ctxt tag) 

45730
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bulwahn
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diff
changeset

400 
 pretty_counterex ctxt auto (SOME ((genuine, cex), eval_terms)) = 
52694  401 
(Pretty.text_fold o Pretty.fbreaks) 
402 
(Pretty.str (tool_name auto ^ " found a " ^ 

403 
(if genuine then "counterexample:" 

404 
else "potentially spurious counterexample due to underspecified functions:") ^ 

405 
Config.get ctxt tag) :: 

406 
Pretty.str "" :: 

407 
map (fn (s, t) => 

408 
Pretty.block [Pretty.str (s ^ " ="), Pretty.brk 1, Syntax.pretty_term ctxt t]) (rev cex) @ 

409 
(if null eval_terms then [] 

410 
else 

411 
Pretty.str "" :: Pretty.str "Evaluated terms:" :: 

412 
map (fn (t, u) => 

413 
Pretty.block [Syntax.pretty_term ctxt t, Pretty.str " =", Pretty.brk 1, 

414 
Syntax.pretty_term ctxt u]) (rev eval_terms))); 

28315  415 

51302  416 

30980  417 
(* Isar commands *) 
28315  418 

51302  419 
fun read_nat s = 
420 
(case (Library.read_int o Symbol.explode) s of 

421 
(k, []) => 

422 
if k >= 0 then k 

28336  423 
else error ("Not a natural number: " ^ s) 
51302  424 
 (_, _ :: _) => error ("Not a natural number: " ^ s)); 
37909
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changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
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diff
changeset

425 

34128
8650a073dd9b
made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
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changeset

426 
fun read_bool "false" = false 
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made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
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changeset

427 
 read_bool "true" = true 
51302  428 
 read_bool s = error ("Not a Boolean value: " ^ s); 
28315  429 

40366
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changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
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diff
changeset

430 
fun read_real s = 
51302  431 
(case (Real.fromString s) of 
40366
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changing timeout to real value; handling Interrupt and Timeout more like nitpick does
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diff
changeset

432 
SOME s => s 
51302  433 
 NONE => error ("Not a real number: " ^ s)); 
40366
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changing timeout to real value; handling Interrupt and Timeout more like nitpick does
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diff
changeset

434 

37929
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
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diff
changeset

435 
fun read_expectation "no_expectation" = No_Expectation 
41517  436 
 read_expectation "no_counterexample" = No_Counterexample 
37929
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diff
changeset

437 
 read_expectation "counterexample" = Counterexample 
51302  438 
 read_expectation s = error ("Not an expectation value: " ^ s); 
37929
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parents:
37913
diff
changeset

439 

51302  440 
fun valid_tester_name genctxt name = AList.defined (op =) (fst (fst (Data.get genctxt))) name; 
441 

43881
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changeset

442 
fun parse_tester name (testers, genctxt) = 
40912
1108529100ce
checking if parameter is name of a tester which allows e.g. quickcheck[random]
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diff
changeset

443 
if valid_tester_name genctxt name then 
51302  444 
(insert (op =) name testers, genctxt) 
40912
1108529100ce
checking if parameter is name of a tester which allows e.g. quickcheck[random]
bulwahn
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changeset

445 
else 
51302  446 
error ("Unknown tester: " ^ name); 
40912
1108529100ce
checking if parameter is name of a tester which allows e.g. quickcheck[random]
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parents:
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diff
changeset

447 

43881
cabe74eab19a
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diff
changeset

448 
fun parse_test_param ("tester", args) = fold parse_tester args 
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changeset

449 
 parse_test_param ("size", [arg]) = apsnd (Config.put_generic size (read_nat arg)) 
cabe74eab19a
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parents:
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diff
changeset

450 
 parse_test_param ("iterations", [arg]) = apsnd (Config.put_generic iterations (read_nat arg)) 
51302  451 
 parse_test_param ("depth", [arg]) = apsnd (Config.put_generic depth (read_nat arg)) 
43881
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parents:
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diff
changeset

452 
 parse_test_param ("default_type", arg) = (fn (testers, gen_ctxt) => 
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
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parents:
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diff
changeset

453 
(testers, map_test_params 
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changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

454 
((apfst o K) (map (Proof_Context.read_typ (Context.proof_of gen_ctxt)) arg)) gen_ctxt)) 
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
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diff
changeset

455 
 parse_test_param ("no_assms", [arg]) = apsnd (Config.put_generic no_assms (read_bool arg)) 
cabe74eab19a
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parents:
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diff
changeset

456 
 parse_test_param ("expect", [arg]) = apsnd (map_test_params ((apsnd o K) (read_expectation arg))) 
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

457 
 parse_test_param ("report", [arg]) = apsnd (Config.put_generic report (read_bool arg)) 
45757
e32dd098f57a
renaming potential flag to genuine_only flag with an inverse semantics
bulwahn
parents:
45755
diff
changeset

458 
 parse_test_param ("genuine_only", [arg]) = apsnd (Config.put_generic genuine_only (read_bool arg)) 
46477
db693eb03a3f
adding abort_potential configuration in Quickcheck
bulwahn
parents:
46343
diff
changeset

459 
 parse_test_param ("abort_potential", [arg]) = apsnd (Config.put_generic abort_potential (read_bool arg)) 
43881
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

460 
 parse_test_param ("quiet", [arg]) = apsnd (Config.put_generic quiet (read_bool arg)) 
45764  461 
 parse_test_param ("verbose", [arg]) = apsnd (Config.put_generic verbose (read_bool arg)) 
46863  462 
 parse_test_param ("tag", [arg]) = apsnd (Config.put_generic tag arg) 
51302  463 
 parse_test_param ("use_subtype", [arg]) = apsnd (Config.put_generic use_subtype (read_bool arg)) 
43881
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
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diff
changeset

464 
 parse_test_param ("timeout", [arg]) = apsnd (Config.put_generic timeout (read_real arg)) 
cabe74eab19a
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bulwahn
parents:
43879
diff
changeset

465 
 parse_test_param ("finite_types", [arg]) = apsnd (Config.put_generic finite_types (read_bool arg)) 
45449
eeffd04cd899
adding option allow_function_inversion to quickcheck options
bulwahn
parents:
45419
diff
changeset

466 
 parse_test_param ("allow_function_inversion", [arg]) = 
eeffd04cd899
adding option allow_function_inversion to quickcheck options
bulwahn
parents:
45419
diff
changeset

467 
apsnd (Config.put_generic allow_function_inversion (read_bool arg)) 
41517  468 
 parse_test_param ("finite_type_size", [arg]) = 
43881
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

469 
apsnd (Config.put_generic finite_type_size (read_nat arg)) 
51302  470 
 parse_test_param (name, _) = 
471 
(fn (testers, genctxt) => 

472 
if valid_tester_name genctxt name then 

473 
(insert (op =) name testers, genctxt) 

474 
else error ("Unknown tester or test parameter: " ^ name)); 

28315  475 

43881
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

476 
fun proof_map_result f = apsnd Context.the_proof o f o Context.Proof; 
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

477 

cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

478 
fun parse_test_param_inst (name, arg) ((insts, eval_terms), (testers, ctxt)) = 
51302  479 
(case try (Proof_Context.read_typ ctxt) name of 
480 
SOME (TFree (v, _)) => 

481 
((AList.update (op =) (v, Proof_Context.read_typ ctxt (the_single arg)) insts, eval_terms), 

482 
(testers, ctxt)) 

483 
 NONE => 

484 
(case name of 

485 
"eval" => ((insts, eval_terms @ map (Syntax.read_term ctxt) arg), (testers, ctxt)) 

486 
 _ => 

487 
((insts, eval_terms), 

488 
proof_map_result (fn gen_ctxt => parse_test_param (name, arg) (testers, gen_ctxt)) ctxt))); 

28309  489 

43881
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

490 
fun quickcheck_params_cmd args = Context.theory_map 
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

491 
(fn gen_ctxt => uncurry set_active_testers (fold parse_test_param args ([], gen_ctxt))); 
41517  492 

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

493 
fun check_expectation state results = 
51302  494 
if is_some results andalso expect (Proof.context_of state) = No_Counterexample then 
495 
error "quickcheck expected to find no counterexample but found one" 

496 
else if is_none results andalso expect (Proof.context_of state) = Counterexample then 

497 
error "quickcheck expected to find a counterexample but did not find one" 

498 
else (); 

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

499 

35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
35324
diff
changeset

500 
fun gen_quickcheck args i state = 
40644
0850a2a16dce
changed oldstyle quickcheck configurations to new Config.T configurations
bulwahn
parents:
40643
diff
changeset

501 
state 
43881
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

502 
> Proof.map_context_result (fn ctxt => 
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

503 
apsnd (fn (testers, ctxt) => Context.proof_map (set_active_testers testers) ctxt) 
cabe74eab19a
changing parser in quickcheck to activate and deactivate the testers
bulwahn
parents:
43879
diff
changeset

504 
(fold parse_test_param_inst args (([], []), ([], ctxt)))) 
42026
da9b58f1db42
adding option of evaluating terms after invocation in quickcheck
bulwahn
parents:
42025
diff
changeset

505 
> (fn ((insts, eval_terms), state') => test_goal (true, true) (insts, eval_terms) i state' 
51302  506 
> tap (check_expectation state') > rpair state'); 
32297  507 

43879
c8308a8faf9f
enabling parallel execution of testers but removing more informative quickcheck output
bulwahn
parents:
43878
diff
changeset

508 
fun quickcheck args i state = 
51302  509 
Option.map (the o get_first counterexample_of) (fst (gen_quickcheck args i state)); 
35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
35324
diff
changeset

510 

32297  511 
fun quickcheck_cmd args i state = 
35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
35324
diff
changeset

512 
gen_quickcheck args i (Toplevel.proof_of state) 
46863  513 
> apfst (Option.map (the o get_first response_of)) 
51302  514 
> (fn (r, state) => 
515 
Output.urgent_message (Pretty.string_of 

516 
(pretty_counterex (Proof.context_of state) false r))); 

28309  517 

41517  518 
val parse_arg = 
519 
Parse.name  

46949  520 
(Scan.optional (@{keyword "="}  
41517  521 
(((Parse.name  Parse.float_number) >> single)  
46949  522 
(@{keyword "["}  Parse.list1 Parse.name  @{keyword "]"}))) ["true"]); 
28309  523 

41517  524 
val parse_args = 
46949  525 
@{keyword "["}  Parse.list1 parse_arg  @{keyword "]"}  Scan.succeed []; 
28336  526 

36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset

527 
val _ = 
46961
5c6955f487e5
outer syntax command definitions based on formal command_spec derived from theory header declarations;
wenzelm
parents:
46949
diff
changeset

528 
Outer_Syntax.command @{command_spec "quickcheck_params"} "set parameters for random testing" 
36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset

529 
(parse_args >> (fn args => Toplevel.theory (quickcheck_params_cmd args))); 
28309  530 

36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset

531 
val _ = 
46961
5c6955f487e5
outer syntax command definitions based on formal command_spec derived from theory header declarations;
wenzelm
parents:
46949
diff
changeset

532 
Outer_Syntax.improper_command @{command_spec "quickcheck"} 
5c6955f487e5
outer syntax command definitions based on formal command_spec derived from theory header declarations;
wenzelm
parents:
46949
diff
changeset

533 
"try to find counterexample for subgoal" 
51557
4e4b56b7a3a5
more robust access Toplevel.proof_of  prefer warning via Toplevel.unknown_proof over hard crash (notably for skipped proofs);
wenzelm
parents:
51302
diff
changeset

534 
(parse_args  Scan.optional Parse.nat 1 >> (fn (args, i) => 
51658
21c10672633b
discontinued Toplevel.no_timing complication  also recovers timing of diagnostic commands, e.g. 'find_theorems';
wenzelm
parents:
51557
diff
changeset

535 
Toplevel.unknown_proof o Toplevel.keep (quickcheck_cmd args i))); 
28309  536 

51302  537 

43020
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
43018
diff
changeset

538 
(* automatic testing *) 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
43018
diff
changeset

539 

abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
43018
diff
changeset

540 
fun try_quickcheck auto state = 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
43018
diff
changeset

541 
let 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
43018
diff
changeset

542 
val ctxt = Proof.context_of state; 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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543 
val i = 1; 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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diff
changeset

544 
val res = 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
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diff
changeset

545 
state 
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added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
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diff
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546 
> 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
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547 
> try (test_goal (false, false) ([], []) i); 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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parents:
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diff
changeset

548 
in 
51302  549 
(case res of 
43020
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parents:
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diff
changeset

550 
NONE => (unknownN, state) 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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parents:
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551 
 SOME results => 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
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changeset

552 
let 
43879
c8308a8faf9f
enabling parallel execution of testers but removing more informative quickcheck output
bulwahn
parents:
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diff
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553 
val msg = pretty_counterex ctxt auto (Option.map (the o get_first response_of) results) 
43020
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
43018
diff
changeset

554 
in 
43879
c8308a8faf9f
enabling parallel execution of testers but removing more informative quickcheck output
bulwahn
parents:
43878
diff
changeset

555 
if is_some results then 
43020
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents:
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diff
changeset

556 
(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)
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557 
state 
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use helpers and tweak Quickcheck's priority to it comes second (to give Solve Direct slightly more time before another prover runs)
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558 
> (if auto then 
52643
34c29356930e
more explicit Markup.information for messages produced by "auto" tools;
wenzelm
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diff
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559 
Proof.goal_message (K (Pretty.mark Markup.information msg)) 
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:
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diff
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560 
else 
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parents:
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diff
changeset

561 
tap (fn _ => Output.urgent_message (Pretty.string_of msg)))) 
43020
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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parents:
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562 
else 
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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563 
(noneN, state) 
51302  564 
end) 
43020
abb5d1f907e4
added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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565 
end 
51302  566 
> `(fn (outcome_code, _) => outcome_code = genuineN); 
43020
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added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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567 

52641
c56b6fa636e8
hybrid "auto" tool setup, for TTY (within theory) and PIDE (global print function);
wenzelm
parents:
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diff
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568 
val _ = Try.tool_setup (quickcheckN, (20, @{option auto_quickcheck}, try_quickcheck)); 
43020
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added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
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parents:
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569 

28315  570 
end; 
28309  571 