author | bulwahn |
Fri, 05 Nov 2010 08:16:35 +0100 | |
changeset 40366 | a2866dbfbe6b |
parent 40253 | f99ec71de82d |
child 40381 | 96c37a685a13 |
permissions | -rw-r--r-- |
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 setup: theory -> theory |
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(* configuration *) |
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val auto: bool Unsynchronized.ref |
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val timing : bool Unsynchronized.ref |
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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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datatype expectation = No_Expectation | No_Counterexample | Counterexample; |
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datatype test_params = Test_Params of |
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{ size: int, iterations: int, default_type: typ list, no_assms: bool, |
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expect : expectation, report: bool, quiet : bool, timeout : real}; |
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val test_params_of : Proof.context -> test_params |
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val report : Proof.context -> bool |
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val map_test_params : |
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((int * int) * ((typ list * bool) * ((expectation * bool) * (bool * real))) |
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-> (int * int) * ((typ list * bool) * ((expectation * bool) * (bool * real)))) |
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-> Context.generic -> Context.generic |
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val add_generator: |
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string * (Proof.context -> term -> int -> term list option * (bool list * bool)) |
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-> Context.generic -> Context.generic |
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(* testing terms and proof states *) |
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val test_term: Proof.context -> string option -> term -> |
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(string * term) list option * ((string * int) list * ((int * report list) list) option) |
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val quickcheck: (string * string list) list -> int -> Proof.state -> (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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(* preferences *) |
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val auto = Unsynchronized.ref false; |
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val timing = Unsynchronized.ref false; |
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val _ = |
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ProofGeneralPgip.add_preference Preferences.category_tracing |
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(Unsynchronized.setmp auto true (fn () => |
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Preferences.bool_pref auto |
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"auto-quickcheck" |
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"Run Quickcheck automatically.") ()); |
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(* quickcheck report *) |
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datatype single_report = Run of bool list * bool | MatchExc |
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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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fun collect_single_report single_report |
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(Report {iterations = iterations, raised_match_errors = raised_match_errors, |
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satisfied_assms = satisfied_assms, positive_concl_tests = positive_concl_tests}) = |
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case single_report |
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of MatchExc => |
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Report {iterations = iterations + 1, raised_match_errors = raised_match_errors + 1, |
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satisfied_assms = satisfied_assms, positive_concl_tests = positive_concl_tests} |
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| Run (assms, concl) => |
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Report {iterations = iterations + 1, raised_match_errors = raised_match_errors, |
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satisfied_assms = |
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map2 (fn b => fn s => if b then s + 1 else s) assms |
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(if null satisfied_assms then replicate (length assms) 0 else satisfied_assms), |
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positive_concl_tests = if concl then positive_concl_tests + 1 else positive_concl_tests} |
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(* expectation *) |
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datatype expectation = No_Expectation | No_Counterexample | Counterexample; |
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fun merge_expectation (expect1, expect2) = |
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if expect1 = expect2 then expect1 else No_Expectation |
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(* quickcheck configuration -- default parameters, test generators *) |
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datatype test_params = Test_Params of |
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{ size: int, iterations: int, default_type: typ list, no_assms: bool, |
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expect : expectation, report: bool, quiet : bool, timeout : real}; |
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fun dest_test_params |
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(Test_Params { size, iterations, default_type, no_assms, expect, report, quiet, timeout }) = |
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((size, iterations), ((default_type, no_assms), ((expect, report), (quiet, timeout)))); |
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fun make_test_params |
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((size, iterations), ((default_type, no_assms), ((expect, report), (quiet, timeout)))) = |
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Test_Params { size = size, iterations = iterations, default_type = default_type, |
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no_assms = no_assms, expect = expect, report = report, quiet = quiet, timeout = timeout }; |
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fun map_test_params' f |
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(Test_Params { size, iterations, default_type, no_assms, expect, report, quiet, timeout }) = |
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make_test_params |
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(f ((size, iterations), ((default_type, no_assms), ((expect, report), (quiet, timeout))))); |
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fun merge_test_params |
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(Test_Params { size = size1, iterations = iterations1, default_type = default_type1, |
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no_assms = no_assms1, expect = expect1, report = report1, quiet = quiet1, timeout = timeout1 }, |
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Test_Params { size = size2, iterations = iterations2, default_type = default_type2, |
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no_assms = no_assms2, expect = expect2, report = report2, quiet = quiet2, timeout = timeout2}) = |
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make_test_params ((Int.max (size1, size2), Int.max (iterations1, iterations2)), |
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((merge (op =) (default_type1, default_type2), no_assms1 orelse no_assms2), |
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((merge_expectation (expect1, expect2), report1 orelse report2), |
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(quiet1 orelse quiet2, Real.min (timeout1, timeout2))))); |
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structure Data = Generic_Data |
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( |
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type T = |
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(string * (Proof.context -> term -> int -> term list option * (bool list * bool))) list |
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* test_params; |
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val empty = ([], Test_Params |
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{ size = 10, iterations = 100, default_type = [], no_assms = false, |
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expect = No_Expectation, report = false, quiet = false, timeout = 30.0}); |
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val extend = I; |
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fun merge ((generators1, params1), (generators2, params2)) : T = |
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(AList.merge (op =) (K true) (generators1, generators2), |
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merge_test_params (params1, params2)); |
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); |
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val test_params_of = snd o Data.get o Context.Proof; |
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val size = fst o fst o dest_test_params o test_params_of |
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val iterations = snd o fst o dest_test_params o test_params_of |
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val default_type = fst o fst o snd o dest_test_params o test_params_of |
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val no_assms = snd o fst o snd o dest_test_params o test_params_of |
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val expect = fst o fst o snd o snd o dest_test_params o test_params_of |
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val report = snd o fst o snd o snd o dest_test_params o test_params_of |
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138 |
val quiet = fst o snd o snd o snd o dest_test_params o test_params_of |
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|
139 |
|
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|
140 |
val timeout = snd o snd o snd o snd o dest_test_params o test_params_of |
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|
141 |
|
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|
142 |
fun map_report f |
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143 |
(Test_Params { size, iterations, default_type, no_assms, expect, report, quiet, timeout }) = |
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144 |
make_test_params |
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145 |
((size, iterations), ((default_type, no_assms), ((expect, f report), (quiet, timeout)))); |
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146 |
|
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147 |
fun map_quiet f |
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|
148 |
(Test_Params { size, iterations, default_type, no_assms, expect, report, quiet, timeout }) = |
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149 |
make_test_params |
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|
150 |
((size, iterations), ((default_type, no_assms), ((expect, report), (f quiet, timeout)))); |
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|
151 |
|
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152 |
fun set_report report = Data.map (apsnd (map_report (K report))) |
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153 |
|
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|
154 |
fun set_quiet quiet = Data.map (apsnd (map_quiet (K quiet))) |
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155 |
|
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156 |
val map_test_params = Data.map o apsnd o map_test_params' |
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157 |
|
28309 | 158 |
val add_generator = Data.map o apfst o AList.update (op =); |
159 |
||
28315 | 160 |
(* generating tests *) |
161 |
||
28309 | 162 |
fun mk_tester_select name ctxt = |
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163 |
case AList.lookup (op =) ((fst o Data.get o Context.Proof) ctxt) name |
28309 | 164 |
of NONE => error ("No such quickcheck generator: " ^ name) |
165 |
| SOME generator => generator ctxt; |
|
166 |
||
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|
167 |
fun mk_testers ctxt t = |
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(map snd o fst o Data.get o Context.Proof) ctxt |
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169 |
|> map_filter (fn generator => try (generator ctxt) t); |
28309 | 170 |
|
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|
171 |
fun mk_testers_strict ctxt t = |
28309 | 172 |
let |
40235
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173 |
val generators = ((map snd o fst o Data.get o Context.Proof) ctxt) |
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174 |
val testers = map (fn generator => Exn.interruptible_capture (generator ctxt) t) generators; |
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|
175 |
in |
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|
176 |
if forall (is_none o Exn.get_result) testers |
28309 | 177 |
then [(Exn.release o snd o split_last) testers] |
178 |
else map_filter Exn.get_result testers |
|
179 |
end; |
|
180 |
||
28315 | 181 |
|
182 |
(* testing propositions *) |
|
183 |
||
28309 | 184 |
fun prep_test_term t = |
185 |
let |
|
29266 | 186 |
val _ = (null (Term.add_tvars t []) andalso null (Term.add_tfrees t [])) orelse |
28309 | 187 |
error "Term to be tested contains type variables"; |
29266 | 188 |
val _ = null (Term.add_vars t []) orelse |
28309 | 189 |
error "Term to be tested contains schematic variables"; |
31138 | 190 |
val frees = Term.add_frees t []; |
28309 | 191 |
in (map fst frees, list_abs_free (frees, t)) end |
28256 | 192 |
|
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|
193 |
fun cpu_time description f = |
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|
194 |
let |
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|
195 |
val start = start_timing () |
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|
196 |
val result = Exn.capture f () |
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|
197 |
val time = Time.toMilliseconds (#cpu (end_timing start)) |
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|
198 |
in (Exn.release result, (description, time)) end |
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|
199 |
|
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|
200 |
fun test_term ctxt generator_name t = |
28309 | 201 |
let |
202 |
val (names, t') = prep_test_term t; |
|
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|
203 |
val current_size = Unsynchronized.ref 0 |
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|
204 |
fun excipit s = |
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|
205 |
"Quickcheck " ^ s ^ " while testing at size " ^ string_of_int (!current_size) |
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|
206 |
val (testers, comp_time) = cpu_time "quickcheck compilation" |
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|
207 |
(fn () => (case generator_name |
40246
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|
208 |
of NONE => if quiet ctxt then mk_testers ctxt t' else mk_testers_strict ctxt t' |
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|
209 |
| SOME name => [mk_tester_select name ctxt t'])); |
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|
210 |
fun iterate f 0 report = (NONE, report) |
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|
211 |
| iterate f j report = |
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|
212 |
let |
40246
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changeset
|
213 |
val (test_result, single_report) = apsnd Run (f ()) handle Match => (if quiet ctxt then () |
35378
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|
214 |
else warning "Exception Match raised during quickcheck"; (NONE, MatchExc)) |
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changeset
|
215 |
val report = collect_single_report single_report report |
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changeset
|
216 |
in |
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|
217 |
case test_result of NONE => iterate f (j - 1) report | SOME q => (SOME q, report) |
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|
218 |
end |
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|
219 |
val empty_report = Report { iterations = 0, raised_match_errors = 0, |
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|
220 |
satisfied_assms = [], positive_concl_tests = 0 } |
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changeset
|
221 |
fun with_testers k [] = (NONE, []) |
28309 | 222 |
| with_testers k (tester :: testers) = |
40246
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|
223 |
case iterate (fn () => tester (k - 1)) (iterations ctxt) empty_report |
35378
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changeset
|
224 |
of (NONE, report) => apsnd (cons report) (with_testers k testers) |
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changeset
|
225 |
| (SOME q, report) => (SOME q, [report]); |
40132
7ee65dbffa31
renamed Output.priority to Output.urgent_message to emphasize its special role more clearly;
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parents:
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diff
changeset
|
226 |
fun with_size k reports = |
40246
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changeset
|
227 |
if k > size ctxt then (NONE, reports) |
40132
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parents:
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changeset
|
228 |
else |
40246
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changeset
|
229 |
(if quiet ctxt then () else Output.urgent_message ("Test data size: " ^ string_of_int k); |
35378
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changeset
|
230 |
let |
40366
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diff
changeset
|
231 |
val _ = current_size := k |
35378
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changeset
|
232 |
val (result, new_report) = with_testers k testers |
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changeset
|
233 |
val reports = ((k, new_report) :: reports) |
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changeset
|
234 |
in case result of NONE => with_size (k + 1) reports | SOME q => (SOME q, reports) end); |
40136 | 235 |
val ((result, reports), exec_time) = |
40366
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changeset
|
236 |
TimeLimit.timeLimit (seconds (timeout ctxt)) (fn () => cpu_time "quickcheck execution" |
35378
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changeset
|
237 |
(fn () => apfst |
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changeset
|
238 |
(fn result => case result of NONE => NONE |
40136 | 239 |
| SOME ts => SOME (names ~~ ts)) (with_size 1 []))) () |
40366
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changeset
|
240 |
handle TimeLimit.TimeOut => |
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changeset
|
241 |
error (excipit "ran out of time") |
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changeset
|
242 |
| Exn.Interrupt => error (excipit "was interrupted") |
34948
2d5f2a9f7601
refactoring the predicate compiler; adding theories for Sequences; adding retrieval to Spec_Rules; adding timing to Quickcheck
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diff
changeset
|
243 |
in |
39253
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changeset
|
244 |
(result, ([exec_time, comp_time], if report ctxt then SOME reports else NONE)) |
28309 | 245 |
end; |
246 |
||
37913
e85f5ad02a8f
correcting wellsortedness check and improving error message
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diff
changeset
|
247 |
exception WELLSORTED of string |
e85f5ad02a8f
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diff
changeset
|
248 |
|
28309 | 249 |
fun monomorphic_term thy insts default_T = |
250 |
let |
|
251 |
fun subst (T as TFree (v, S)) = |
|
252 |
let |
|
253 |
val T' = AList.lookup (op =) insts v |
|
37912 | 254 |
|> the_default default_T |
37913
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changeset
|
255 |
in if Sign.of_sort thy (T', S) then T' |
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changeset
|
256 |
else raise (WELLSORTED ("For instantiation with default_type " ^ Syntax.string_of_typ_global thy default_T ^ |
e85f5ad02a8f
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diff
changeset
|
257 |
":\n" ^ Syntax.string_of_typ_global thy T' ^ |
28309 | 258 |
" to be substituted for variable " ^ |
37913
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diff
changeset
|
259 |
Syntax.string_of_typ_global thy T ^ " does not have sort " ^ |
e85f5ad02a8f
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diff
changeset
|
260 |
Syntax.string_of_sort_global thy S)) |
28309 | 261 |
end |
262 |
| subst T = T; |
|
263 |
in (map_types o map_atyps) subst end; |
|
264 |
||
37913
e85f5ad02a8f
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diff
changeset
|
265 |
datatype wellsorted_error = Wellsorted_Error of string | Term of term |
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changeset
|
266 |
|
40246
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changeset
|
267 |
fun test_goal generator_name insts i state = |
28309 | 268 |
let |
37974
d9549f9da779
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haftmann
parents:
37929
diff
changeset
|
269 |
val lthy = Proof.context_of state; |
28309 | 270 |
val thy = Proof.theory_of state; |
271 |
fun strip (Const ("all", _) $ Abs (_, _, t)) = strip t |
|
272 |
| strip t = t; |
|
33291 | 273 |
val {goal = st, ...} = Proof.raw_goal state; |
28309 | 274 |
val (gi, frees) = Logic.goal_params (prop_of st) i; |
38390 | 275 |
val some_locale = case (Option.map #target o Named_Target.peek) lthy |
276 |
of NONE => NONE |
|
277 |
| SOME "" => NONE |
|
278 |
| SOME locale => SOME locale; |
|
40246
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changeset
|
279 |
val assms = if no_assms lthy then [] else case some_locale |
37974
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haftmann
parents:
37929
diff
changeset
|
280 |
of NONE => Assumption.all_assms_of lthy |
d9549f9da779
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haftmann
parents:
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diff
changeset
|
281 |
| SOME locale => Assumption.local_assms_of lthy (Locale.init locale thy); |
d9549f9da779
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parents:
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diff
changeset
|
282 |
val proto_goal = Logic.list_implies (map Thm.term_of assms, subst_bounds (frees, strip gi)); |
d9549f9da779
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haftmann
parents:
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diff
changeset
|
283 |
val check_goals = case some_locale |
d9549f9da779
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haftmann
parents:
37929
diff
changeset
|
284 |
of NONE => [proto_goal] |
40246
c03fc7d3fa97
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|
285 |
| SOME locale => map (fn (_, phi) => Morphism.term phi proto_goal) |
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|
286 |
(Locale.registrations_of (Context.Theory thy) (*FIXME*) locale); |
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|
287 |
val inst_goals = maps (fn check_goal => map (fn T => |
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|
288 |
Term ((Object_Logic.atomize_term thy o monomorphic_term thy insts T) check_goal) |
40246
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|
289 |
handle WELLSORTED s => Wellsorted_Error s) (default_type lthy)) check_goals |
37913
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correcting wellsortedness check and improving error message
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changeset
|
290 |
val error_msg = cat_lines (map_filter (fn Term t => NONE | Wellsorted_Error s => SOME s) inst_goals) |
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|
291 |
val correct_inst_goals = |
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changeset
|
292 |
case map_filter (fn Term t => SOME t | Wellsorted_Error s => NONE) inst_goals of |
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|
293 |
[] => error error_msg |
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changeset
|
294 |
| xs => xs |
40246
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|
295 |
val _ = if quiet lthy then () else warning error_msg |
37912 | 296 |
fun collect_results f reports [] = (NONE, rev reports) |
297 |
| collect_results f reports (t :: ts) = |
|
298 |
case f t of |
|
299 |
(SOME res, report) => (SOME res, rev (report :: reports)) |
|
300 |
| (NONE, report) => collect_results f (report :: reports) ts |
|
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|
301 |
in collect_results (test_term lthy generator_name) [] correct_inst_goals end; |
37912 | 302 |
|
303 |
(* pretty printing *) |
|
28315 | 304 |
|
40225 | 305 |
fun tool_name auto = (if auto then "Auto " else "") ^ "Quickcheck" |
306 |
||
307 |
fun pretty_counterex ctxt auto NONE = Pretty.str (tool_name auto ^ " found no counterexample.") |
|
308 |
| pretty_counterex ctxt auto (SOME cex) = |
|
309 |
Pretty.chunks (Pretty.str (tool_name auto ^ " found a counterexample:\n") :: |
|
28315 | 310 |
map (fn (s, t) => |
311 |
Pretty.block [Pretty.str (s ^ " ="), Pretty.brk 1, Syntax.pretty_term ctxt t]) cex); |
|
312 |
||
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changeset
|
313 |
fun pretty_report (Report {iterations = iterations, raised_match_errors = raised_match_errors, |
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changeset
|
314 |
satisfied_assms = satisfied_assms, positive_concl_tests = positive_concl_tests}) = |
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changeset
|
315 |
let |
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changeset
|
316 |
fun pretty_stat s i = Pretty.block ([Pretty.str (s ^ ": " ^ string_of_int i)]) |
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changeset
|
317 |
in |
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diff
changeset
|
318 |
([pretty_stat "iterations" iterations, |
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diff
changeset
|
319 |
pretty_stat "match exceptions" raised_match_errors] |
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changeset
|
320 |
@ map_index (fn (i, n) => pretty_stat ("satisfied " ^ string_of_int (i + 1) ^ ". assumption") n) |
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changeset
|
321 |
satisfied_assms |
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changeset
|
322 |
@ [pretty_stat "positive conclusion tests" positive_concl_tests]) |
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|
323 |
end |
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changeset
|
324 |
|
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changeset
|
325 |
fun pretty_reports' [report] = [Pretty.chunks (pretty_report report)] |
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changeset
|
326 |
| pretty_reports' reports = |
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diff
changeset
|
327 |
map_index (fn (i, report) => |
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diff
changeset
|
328 |
Pretty.chunks (Pretty.str (string_of_int (i + 1) ^ ". generator:\n") :: pretty_report report)) |
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changeset
|
329 |
reports |
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changeset
|
330 |
|
35380
6ac5b81a763d
adopting Mutabelle to quickcheck reporting; improving quickcheck reporting
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diff
changeset
|
331 |
fun pretty_reports ctxt (SOME reports) = |
35378
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changeset
|
332 |
Pretty.chunks (Pretty.str "Quickcheck report:" :: |
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changeset
|
333 |
maps (fn (size, reports) => |
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diff
changeset
|
334 |
Pretty.str ("size " ^ string_of_int size ^ ":") :: pretty_reports' reports @ [Pretty.brk 1]) |
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parents:
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diff
changeset
|
335 |
(rev reports)) |
35380
6ac5b81a763d
adopting Mutabelle to quickcheck reporting; improving quickcheck reporting
bulwahn
parents:
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diff
changeset
|
336 |
| pretty_reports ctxt NONE = Pretty.str "" |
35378
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changeset
|
337 |
|
40225 | 338 |
fun pretty_counterex_and_reports ctxt auto (cex, timing_and_reports) = |
339 |
Pretty.chunks (pretty_counterex ctxt auto cex :: |
|
340 |
map (pretty_reports ctxt) (map snd timing_and_reports)) |
|
28315 | 341 |
|
342 |
(* automatic testing *) |
|
28309 | 343 |
|
33561
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introduced Auto Nitpick in addition to Auto Quickcheck;
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diff
changeset
|
344 |
fun auto_quickcheck state = |
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introduced Auto Nitpick in addition to Auto Quickcheck;
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changeset
|
345 |
if not (!auto) then |
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introduced Auto Nitpick in addition to Auto Quickcheck;
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diff
changeset
|
346 |
(false, state) |
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
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diff
changeset
|
347 |
else |
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
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parents:
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diff
changeset
|
348 |
let |
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
blanchet
parents:
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diff
changeset
|
349 |
val ctxt = Proof.context_of state; |
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
blanchet
parents:
33560
diff
changeset
|
350 |
val res = |
39253
0c47d615a69b
removing report from the arguments of the quickcheck functions and refering to it by picking it from the context
bulwahn
parents:
39252
diff
changeset
|
351 |
state |
40246
c03fc7d3fa97
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parents:
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diff
changeset
|
352 |
|> Proof.map_context (Context.proof_map (set_report false #> set_quiet true)) |
c03fc7d3fa97
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bulwahn
parents:
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diff
changeset
|
353 |
|> try (test_goal NONE [] 1); |
33561
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
blanchet
parents:
33560
diff
changeset
|
354 |
in |
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
blanchet
parents:
33560
diff
changeset
|
355 |
case res of |
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
blanchet
parents:
33560
diff
changeset
|
356 |
NONE => (false, state) |
35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
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diff
changeset
|
357 |
| SOME (NONE, report) => (false, state) |
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bulwahn
parents:
35324
diff
changeset
|
358 |
| SOME (cex, report) => (true, Proof.goal_message (K (Pretty.chunks [Pretty.str "", |
40225 | 359 |
Pretty.mark Markup.hilite (pretty_counterex ctxt true cex)])) state) |
33561
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
blanchet
parents:
33560
diff
changeset
|
360 |
end |
ab01b72715ef
introduced Auto Nitpick in addition to Auto Quickcheck;
blanchet
parents:
33560
diff
changeset
|
361 |
|
39324
05452dd66b2b
finished renaming "Auto_Counterexample" to "Auto_Tools"
blanchet
parents:
39253
diff
changeset
|
362 |
val setup = Auto_Tools.register_tool ("quickcheck", auto_quickcheck) |
28315 | 363 |
|
364 |
||
30980 | 365 |
(* Isar commands *) |
28315 | 366 |
|
28336 | 367 |
fun read_nat s = case (Library.read_int o Symbol.explode) s |
368 |
of (k, []) => if k >= 0 then k |
|
369 |
else error ("Not a natural number: " ^ s) |
|
370 |
| (_, _ :: _) => error ("Not a natural number: " ^ s); |
|
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
371 |
|
34128
8650a073dd9b
made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
blanchet
parents:
33583
diff
changeset
|
372 |
fun read_bool "false" = false |
8650a073dd9b
made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
blanchet
parents:
33583
diff
changeset
|
373 |
| read_bool "true" = true |
8650a073dd9b
made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
blanchet
parents:
33583
diff
changeset
|
374 |
| read_bool s = error ("Not a Boolean value: " ^ s) |
28315 | 375 |
|
40366
a2866dbfbe6b
changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
40253
diff
changeset
|
376 |
fun read_real s = |
a2866dbfbe6b
changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
40253
diff
changeset
|
377 |
case (Real.fromString s) of |
a2866dbfbe6b
changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
40253
diff
changeset
|
378 |
SOME s => s |
a2866dbfbe6b
changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
40253
diff
changeset
|
379 |
| NONE => error ("Not a real number: " ^ s) |
a2866dbfbe6b
changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
40253
diff
changeset
|
380 |
|
37929
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
381 |
fun read_expectation "no_expectation" = No_Expectation |
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
382 |
| read_expectation "no_counterexample" = No_Counterexample |
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
383 |
| read_expectation "counterexample" = Counterexample |
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
384 |
| read_expectation s = error ("Not an expectation value: " ^ s) |
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
385 |
|
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
386 |
fun parse_test_param ctxt ("size", [arg]) = |
28336 | 387 |
(apfst o apfst o K) (read_nat arg) |
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
388 |
| parse_test_param ctxt ("iterations", [arg]) = |
28336 | 389 |
(apfst o apsnd o K) (read_nat arg) |
390 |
| parse_test_param ctxt ("default_type", arg) = |
|
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
391 |
(apsnd o apfst o apfst o K) (map (ProofContext.read_typ ctxt) arg) |
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
392 |
| parse_test_param ctxt ("no_assms", [arg]) = |
35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
35324
diff
changeset
|
393 |
(apsnd o apfst o apsnd o K) (read_bool arg) |
37929
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
394 |
| parse_test_param ctxt ("expect", [arg]) = |
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
395 |
(apsnd o apsnd o apfst o apfst o K) (read_expectation arg) |
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
396 |
| parse_test_param ctxt ("report", [arg]) = |
37929
22e0797857e6
adding checking of expected result for the tool quickcheck; annotated a few quickcheck examples
bulwahn
parents:
37913
diff
changeset
|
397 |
(apsnd o apsnd o apfst o apsnd o K) (read_bool arg) |
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
398 |
| parse_test_param ctxt ("quiet", [arg]) = |
40246
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
399 |
(apsnd o apsnd o apsnd o apfst o K) (read_bool arg) |
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
400 |
| parse_test_param ctxt ("timeout", [arg]) = |
40366
a2866dbfbe6b
changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
40253
diff
changeset
|
401 |
(apsnd o apsnd o apsnd o apsnd o K) (read_real arg) |
28336 | 402 |
| parse_test_param ctxt (name, _) = |
34128
8650a073dd9b
made Quickcheck take structured proof assumptions into account (like Refute and Nitpick) by default;
blanchet
parents:
33583
diff
changeset
|
403 |
error ("Unknown test parameter: " ^ name); |
28315 | 404 |
|
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
405 |
fun parse_test_param_inst ctxt ("generator", [arg]) = |
28336 | 406 |
(apsnd o apfst o K o SOME) arg |
407 |
| parse_test_param_inst ctxt (name, arg) = |
|
408 |
case try (ProofContext.read_typ ctxt) name |
|
409 |
of SOME (TFree (v, _)) => (apsnd o apsnd o AList.update (op =)) |
|
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
410 |
(v, ProofContext.read_typ ctxt (the_single arg)) |
28336 | 411 |
| _ => (apfst o parse_test_param ctxt) (name, arg); |
28309 | 412 |
|
28336 | 413 |
fun quickcheck_params_cmd args thy = |
28315 | 414 |
let |
39252
8f176e575a49
changing the container for the quickcheck options to a generic data
bulwahn
parents:
39138
diff
changeset
|
415 |
val ctxt = ProofContext.init_global thy |
28336 | 416 |
val f = fold (parse_test_param ctxt) args; |
28315 | 417 |
in |
418 |
thy |
|
40246
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
419 |
|> (Context.theory_map o map_test_params) f |
28315 | 420 |
end; |
421 |
||
35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
35324
diff
changeset
|
422 |
fun gen_quickcheck args i state = |
28315 | 423 |
let |
32297 | 424 |
val ctxt = Proof.context_of state; |
39252
8f176e575a49
changing the container for the quickcheck options to a generic data
bulwahn
parents:
39138
diff
changeset
|
425 |
val default_params = (dest_test_params o snd o Data.get o Context.Proof) ctxt; |
28336 | 426 |
val f = fold (parse_test_param_inst ctxt) args; |
40246
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
427 |
val (test_params, (generator_name, insts)) = f (default_params, (NONE, [])); |
32297 | 428 |
in |
39253
0c47d615a69b
removing report from the arguments of the quickcheck functions and refering to it by picking it from the context
bulwahn
parents:
39252
diff
changeset
|
429 |
state |
40246
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
430 |
|> Proof.map_context (Context.proof_map (map_test_params (K test_params))) |
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
431 |
|> (fn state' => test_goal generator_name insts i state' |
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
432 |
|> tap (fn (SOME x, _) => if expect (Proof.context_of state') = No_Counterexample then |
37974
d9549f9da779
quickcheck images of goals under registration morphisms
haftmann
parents:
37929
diff
changeset
|
433 |
error ("quickcheck expected to find no counterexample but found one") else () |
40246
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
434 |
| (NONE, _) => if expect (Proof.context_of state') = Counterexample then |
c03fc7d3fa97
changed global fixed timeout to a configurable timeout for quickcheck; test parameters in quickcheck are now fully passed around with the context
bulwahn
parents:
40225
diff
changeset
|
435 |
error ("quickcheck expected to find a counterexample but did not find one") else ())) |
32297 | 436 |
end; |
437 |
||
36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
438 |
fun quickcheck args i state = fst (gen_quickcheck args i state); |
35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
35324
diff
changeset
|
439 |
|
32297 | 440 |
fun quickcheck_cmd args i state = |
35378
95d0e3adf38e
added basic reporting of test cases to quickcheck
bulwahn
parents:
35324
diff
changeset
|
441 |
gen_quickcheck args i (Toplevel.proof_of state) |
40225 | 442 |
|> Pretty.writeln o pretty_counterex_and_reports (Toplevel.context_of state) false; |
28309 | 443 |
|
37909
583543ad6ad1
changed default types to a list of types; extended quickcheck parameters to be a list of values to parse a list of default types
bulwahn
parents:
36960
diff
changeset
|
444 |
val parse_arg = Parse.name -- (Scan.optional (Parse.$$$ "=" |-- |
40366
a2866dbfbe6b
changing timeout to real value; handling Interrupt and Timeout more like nitpick does
bulwahn
parents:
40253
diff
changeset
|
445 |
(((Parse.name || Parse.float_number) >> single) || (Parse.$$$ "[" |-- Parse.list1 Parse.name --| Parse.$$$ "]"))) ["true"]); |
28309 | 446 |
|
36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
447 |
val parse_args = Parse.$$$ "[" |-- Parse.list1 parse_arg --| Parse.$$$ "]" |
28336 | 448 |
|| Scan.succeed []; |
449 |
||
36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
450 |
val _ = |
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
451 |
Outer_Syntax.command "quickcheck_params" "set parameters for random testing" Keyword.thy_decl |
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
452 |
(parse_args >> (fn args => Toplevel.theory (quickcheck_params_cmd args))); |
28309 | 453 |
|
36960
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
454 |
val _ = |
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
455 |
Outer_Syntax.improper_command "quickcheck" "try to find counterexample for subgoal" Keyword.diag |
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
456 |
(parse_args -- Scan.optional Parse.nat 1 |
01594f816e3a
prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
wenzelm
parents:
36610
diff
changeset
|
457 |
>> (fn (args, i) => Toplevel.no_timing o Toplevel.keep (quickcheck_cmd args i))); |
28309 | 458 |
|
28315 | 459 |
end; |
28309 | 460 |
|
461 |
||
28315 | 462 |
val auto_quickcheck = Quickcheck.auto; |