aboutsummaryrefslogtreecommitdiff
path: root/stdlib/test
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--stdlib/test/test/lux/type.lux164
-rw-r--r--stdlib/test/test/lux/type/auto.lux28
-rw-r--r--stdlib/test/test/lux/type/check.lux162
-rw-r--r--stdlib/test/tests.lux16
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]
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 12:40:37 +0000