diff options
Diffstat (limited to 'stdlib/test')
-rw-r--r-- | stdlib/test/test/lux/type.lux | 164 | ||||
-rw-r--r-- | stdlib/test/test/lux/type/auto.lux | 28 | ||||
-rw-r--r-- | stdlib/test/test/lux/type/check.lux | 162 | ||||
-rw-r--r-- | stdlib/test/tests.lux | 16 |
4 files changed, 328 insertions, 42 deletions
diff --git a/stdlib/test/test/lux/type.lux b/stdlib/test/test/lux/type.lux index 8fa871e70..0e203f376 100644 --- a/stdlib/test/test/lux/type.lux +++ b/stdlib/test/test/lux/type.lux @@ -1,41 +1,137 @@ +## Copyright (c) Eduardo Julian. All rights reserved. +## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. +## If a copy of the MPL was not distributed with this file, +## You can obtain one at http://mozilla.org/MPL/2.0/. + (;module: lux (lux (codata [io]) (control monad) (data [text "Text/" Monoid<Text>] - [number]) - type - (codata function)) + text/format + [number] + maybe + (struct [list])) + (math ["R" random]) + pipe + ["&" type]) lux/test) -(test: "lux/type exports" - (let% [<eq-tests> (do-template [<type>] - [(match true (:: Eq<Type> = <type> <type>))] - - [(#;HostT "java.util.List" (list Int))] - [#;UnitT] - [#;VoidT] - [(#;VarT +123)] - [(#;ExT +123)] - [(#;BoundT +123)] - [(#;LambdaT Bool Int)] - [(#;AppT List Int)] - [(#;NamedT ["" "Int-List"] (#;AppT List Int))] - [(#;SumT Bool Int)] - [(#;ProdT Bool Int)] - [(#;UnivQ (list) (#;ProdT Bool (#;BoundT +1)))] - [(#;ExQ (list) (#;ProdT Bool (#;BoundT +1)))] - )] - (test-all <eq-tests> - (match (^=> (#;Some _type) (:: Eq<Type> = _type (#;ProdT Bool Int))) - (apply-type (type (Meta Bool)) Int)) - (match #;None (apply-type Text Bool)) - (match true - (:: Eq<Type> = - (#;NamedT ["" "a"] - (#;ProdT Bool Int)) - (un-alias (#;NamedT ["" "c"] - (#;NamedT ["" "b"] - (#;NamedT ["" "a"] - (#;ProdT Bool Int))))))) - ))) +## [Utils] +(def: gen-name + (R;Random Text) + (do R;Monad<Random> + [size (|> R;nat (:: @ map (n.% +10)))] + (R;text size))) + +(def: gen-ident + (R;Random Ident) + (R;seq gen-name gen-name)) + +(def: gen-type + (R;Random Type) + (let [(^open "R/") R;Monad<Random>] + (R;rec (lambda [gen-type] + ($_ R;alt + (R;seq gen-name (R/wrap (list))) + (R/wrap []) + (R/wrap []) + (R;seq gen-type gen-type) + (R;seq gen-type gen-type) + (R;seq gen-type gen-type) + R;nat + R;nat + R;nat + (R;seq (R/wrap (list)) gen-type) + (R;seq (R/wrap (list)) gen-type) + (R;seq gen-type gen-type) + (R;seq gen-ident gen-type) + ))))) + +## [Tests] +(test: "Types" + [sample gen-type] + (assert "Every type is equal to itself." + (:: &;Eq<Type> = sample sample))) + +(test: "Type application" + (assert "Can apply quantified types (universal and existential quantification)." + (and (default false + (do Monad<Maybe> + [partial (&;apply-type Meta Bool) + full (&;apply-type partial Int)] + (wrap (:: &;Eq<Type> = full (#;ProdT Bool Int))))) + (|> (&;apply-type Text Bool) + (case> #;None true _ false))))) + +(test: "Naming" + (let [base (#;NamedT ["" "a"] (#;ProdT Bool Int)) + aliased (#;NamedT ["" "c"] + (#;NamedT ["" "b"] + base))] + ($_ seq + (assert "Can remove aliases from an already-named type." + (:: &;Eq<Type> = + base + (&;un-alias aliased))) + + (assert "Can remove all names from a type." + (and (not (:: &;Eq<Type> = + base + (&;un-name aliased))) + (:: &;Eq<Type> = + (&;un-name base) + (&;un-name aliased))))))) + +(test: "Type construction [structs]" + [size (|> R;nat (:: @ map (n.% +3))) + members (seqM @ (list;repeat size gen-type)) + #let [(^open "&/") &;Eq<Type> + (^open "L/") (list;Eq<List> &;Eq<Type>)]] + (let% [<struct-tests> (do-template [<desc> <ctor> <dtor> <unit>] + [(assert (format "Can build and tear-down " <desc> " types.") + (let [flat (|> members <ctor> <dtor>)] + (or (n.= (list;size members) (list;size flat)) + (and (n.= +0 (list;size members)) + (n.= +1 (list;size flat)) + (|> flat list;head (default (undefined)) (&/= <unit>))))))] + + ["variant" &;variant &;flatten-variant #;VoidT] + ["tuple" &;tuple &;flatten-tuple #;UnitT] + )] + ($_ seq + <struct-tests> + ))) + +(test: "Type construction [parameterized]" + [size (|> R;nat (:: @ map (n.% +3))) + members (seqM @ (list;repeat size gen-type)) + extra gen-type + #let [(^open "&/") &;Eq<Type> + (^open "L/") (list;Eq<List> &;Eq<Type>)]] + ($_ seq + (assert "Can build and tear-down function types." + (let [[inputs output] (|> (&;function members extra) &;flatten-function)] + (n.= (list;size members) (list;size inputs)))) + + (assert "Can build and tear-down application types." + (let [[tfunc tparams] (|> members (&;application extra) &;flatten-application)] + (n.= (list;size members) (list;size tparams)))) + )) + +(test: "Type construction [higher order]" + [size (|> R;nat (:: @ map (n.% +3))) + extra gen-type + #let [(^open "&/") &;Eq<Type>]] + (let% [<quant-tests> (do-template [<desc> <ctor> <dtor>] + [(assert (format "Can build and tear-down " <desc> " types.") + (let [[flat-size flat-body] (|> extra (<ctor> size) <dtor>)] + (and (n.= size flat-size) + (&/= extra flat-body))))] + + ["universally-quantified" &;univq &;flatten-univq] + ["existentially-quantified" &;exq &;flatten-exq] + )] + ($_ seq + <quant-tests> + ))) diff --git a/stdlib/test/test/lux/type/auto.lux b/stdlib/test/test/lux/type/auto.lux new file mode 100644 index 000000000..ef69961cd --- /dev/null +++ b/stdlib/test/test/lux/type/auto.lux @@ -0,0 +1,28 @@ +## Copyright (c) Eduardo Julian. All rights reserved. +## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. +## If a copy of the MPL was not distributed with this file, +## You can obtain one at http://mozilla.org/MPL/2.0/. + +(;module: + lux + (lux (codata [io]) + (control monad + [eq]) + (data [text "Text/" Monoid<Text>] + text/format + [number] + [bool "B/" Eq<Bool>] + maybe + (struct [list])) + (math ["R" random]) + pipe + [type] + type/auto) + lux/test) + +(test: "Automatic structure selection" + [x R;nat + y R;nat] + (assert "Can automatically select first-order structures." + (B/= (:: number;Eq<Nat> = x y) + (::: eq;= x y)))) diff --git a/stdlib/test/test/lux/type/check.lux b/stdlib/test/test/lux/type/check.lux new file mode 100644 index 000000000..273dbad4c --- /dev/null +++ b/stdlib/test/test/lux/type/check.lux @@ -0,0 +1,162 @@ +## Copyright (c) Eduardo Julian. All rights reserved. +## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. +## If a copy of the MPL was not distributed with this file, +## You can obtain one at http://mozilla.org/MPL/2.0/. + +(;module: + lux + (lux (codata [io]) + (control monad) + (data [text "Text/" Monoid<Text>] + text/format + [number] + maybe + (struct [list])) + (math ["R" random]) + pipe + [type] + ["&" type/check]) + lux/test) + +## [Utils] +(def: gen-name + (R;Random Text) + (do R;Monad<Random> + [size (|> R;nat (:: @ map (n.% +10)))] + (R;text size))) + +(def: gen-ident + (R;Random Ident) + (R;seq gen-name gen-name)) + +(def: gen-type + (R;Random Type) + (let [(^open "R/") R;Monad<Random>] + (R;rec (lambda [gen-type] + ($_ R;alt + (R;seq gen-name (R/wrap (list))) + (R/wrap []) + (R/wrap []) + (R;seq gen-type gen-type) + (R;seq gen-type gen-type) + (R;seq gen-type gen-type) + R;nat + R;nat + R;nat + (R;seq (R/wrap (list)) gen-type) + (R;seq (R/wrap (list)) gen-type) + (R;seq gen-type gen-type) + (R;seq gen-ident gen-type) + ))))) + +(def: (type-checks? input) + (-> (&;Check []) Bool) + (case (&;run &;fresh-context input) + (#;Right []) + true + + (#;Left error) + false)) + +## [Tests] +(test: "Top and Bottom" + [sample gen-type] + ($_ seq + (assert "Top is the super-type 0f everything." + (&;checks? Top sample)) + + (assert "Bottom is the sub-type 0f everything." + (&;checks? sample Bottom)) + )) + +(test: "Simple type-checking." + ($_ seq + (assert "Unit and Void match themselves." + (and (&;checks? Void Void) + (&;checks? Unit Unit))) + + (assert "Existential types only match with themselves." + (and (type-checks? (do &;Monad<Check> + [[id ex] &;existential] + (&;check ex ex))) + (not (type-checks? (do &;Monad<Check> + [[lid lex] &;existential + [rid rex] &;existential] + (&;check lex rex)))))) + + (assert "Names don't affect type-checking." + (and (type-checks? (do &;Monad<Check> + [[id ex] &;existential] + (&;check (#;NamedT ["module" "name"] ex) + ex))) + (type-checks? (do &;Monad<Check> + [[id ex] &;existential] + (&;check ex + (#;NamedT ["module" "name"] ex)))) + (type-checks? (do &;Monad<Check> + [[id ex] &;existential] + (&;check (#;NamedT ["module" "name"] ex) + (#;NamedT ["module" "name"] ex)))))) + + (assert "Can type-check functions." + (and (&;checks? (#;LambdaT Bottom Top) + (#;LambdaT Top Bottom)) + (not (&;checks? (#;LambdaT Top Bottom) + (#;LambdaT Bottom Top))))) + )) + +(test: "Type application" + [meta gen-type + data gen-type] + (assert "Can type-check type application." + (and (&;checks? (#;AppT (#;AppT Meta meta) data) + (type;tuple (list meta data))) + (&;checks? (type;tuple (list meta data)) + (#;AppT (#;AppT Meta meta) data))))) + +(test: "Host types" + [nameL gen-name + nameR gen-name + paramL gen-type + paramR gen-type] + ($_ seq + (assert "Host types match when they have the same name and the same parameters." + (&;checks? (#;HostT nameL (list paramL)) + (#;HostT nameL (list paramL)))) + + (assert "Names matter to host types." + (&;checks? (#;HostT nameL (list paramL)) + (#;HostT nameR (list paramL)))) + + (assert "Parameters matter to host types." + (&;checks? (#;HostT nameL (list paramL)) + (#;HostT nameL (list paramR)))) + )) + +(test: "Type-vars" + ($_ seq + (assert "Type-vars check against themselves." + (type-checks? (&;with-var (lambda [[id var]] (&;check var var))))) + + (assert "Can bind unbound type-vars by type-checking against them." + (and (type-checks? (&;with-var (lambda [[id var]] (&;check var #;UnitT)))) + (type-checks? (&;with-var (lambda [[id var]] (&;check #;UnitT var)))))) + + (assert "Can't rebind already bound type-vars." + (not (type-checks? (&;with-var (lambda [[id var]] + (do &;Monad<Check> + [_ (&;check var #;UnitT)] + (&;check var #;VoidT))))))) + + (assert "If the type bound to a var is a super-type to another, then the var is also a super-type." + (type-checks? (&;with-var (lambda [[id var]] + (do &;Monad<Check> + [_ (&;check var Top)] + (&;check var #;UnitT)))))) + + (assert "If the type bound to a var is a sub-type of another, then the var is also a sub-type." + (type-checks? (&;with-var (lambda [[id var]] + (do &;Monad<Check> + [_ (&;check var Bottom)] + (&;check #;UnitT var)))))) + )) diff --git a/stdlib/test/tests.lux b/stdlib/test/tests.lux index e225e1f28..ef94dca90 100644 --- a/stdlib/test/tests.lux +++ b/stdlib/test/tests.lux @@ -59,17 +59,17 @@ (macro ["_;" ast] ["_;" syntax] ["_;" template]) - ## [type] - ## (type [check] [auto]) - ## (control ...) + ["_;" type] + (type ["_;" check] + ["_;" auto]) + ## (control [effect]) ) ) ## (lux (codata [cont]) - ## (macro [poly] - ## (poly ["poly_;" eq] - ## ["poly_;" text-encoder] - ## ["poly_;" functor])) - ## (control [effect])) + ## (macro [poly] + ## (poly ["poly_;" eq] + ## ["poly_;" text-encoder] + ## ["poly_;" functor]))) ) ## [Program] |