From e9368bc5f75345c81bd7ded21e07a4436641821a Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Fri, 20 Oct 2017 19:09:34 -0400
Subject: - Replaced the "#seed" and "#times" options for "seed" and "times"
test combinators.
---
stdlib/source/lux/data/number/complex.lux | 3 -
stdlib/source/lux/test.lux | 309 +++++++++++++-----------------
2 files changed, 134 insertions(+), 178 deletions(-)
(limited to 'stdlib/source')
diff --git a/stdlib/source/lux/data/number/complex.lux b/stdlib/source/lux/data/number/complex.lux
index ffe40e20e..778b4a1db 100644
--- a/stdlib/source/lux/data/number/complex.lux
+++ b/stdlib/source/lux/data/number/complex.lux
@@ -16,9 +16,6 @@
(meta [code]
["s" syntax #+ syntax: Syntax])))
-## Based on org.apache.commons.math4.complex.Complex
-## https://github.com/apache/commons-math/blob/master/src/main/java/org/apache/commons/math4/complex/Complex.java
-
(type: #export Complex
{#real Frac
#imaginary Frac})
diff --git a/stdlib/source/lux/test.lux b/stdlib/source/lux/test.lux
index f4c55d69b..5568478a0 100644
--- a/stdlib/source/lux/test.lux
+++ b/stdlib/source/lux/test.lux
@@ -3,15 +3,15 @@
(lux [meta #+ Monad with-gensyms]
(meta ["s" syntax #+ syntax: Syntax]
[code])
- (control ["M" monad #+ do Monad]
+ (control [monad #+ do Monad]
["p" parser])
(concurrency [promise #+ Promise Monad])
- (data (coll [list "L/" Monad Fold])
+ (data (coll [list "list/" Monad Fold])
[product]
[maybe]
[text]
text/format
- ["E" error])
+ ["e" error])
[io #- run]
(time [instant]
[duration])
@@ -27,13 +27,20 @@
)
## [Types]
-(type: Counters [Nat Nat])
+(type: #export Counters [Nat Nat])
+
+(type: #export Seed
+ {#;doc "The seed value used for random testing (if that feature is used)."}
+ Nat)
(type: #export Test
- {#;doc "Tests are asynchronous process which may fail."}
- (Promise [Counters Text]))
+ (r;Random (Promise [Counters Text])))
+
+(def: pcg-32-magic-inc Nat +12345)
## [Values]
+(def: #hidden Monad (Monad r;Random) r;Monad)
+
(def: success Counters [+1 +0])
(def: failure Counters [+0 +1])
(def: start Counters [+0 +0])
@@ -44,131 +51,94 @@
(def: (fail message)
(All [a] (-> Text Test))
- (:: Monad wrap [failure (format " [Error] " (%t message))]))
+ (|> [failure (format " [Error] " message)]
+ (:: Monad wrap)
+ (:: r;Monad wrap)))
-(def: #export (test message condition)
+(def: #export (assert message condition)
{#;doc "Check that a condition is true, and fail with the given message otherwise."}
- (-> Text Bool Test)
+ (-> Text Bool (Promise [Counters Text]))
(if condition
(:: Monad wrap [success (format "[Success] " message)])
(:: Monad wrap [failure (format " [Error] " message)])))
+(def: #export (test message condition)
+ {#;doc "Check that a condition is true, and fail with the given message otherwise."}
+ (-> Text Bool Test)
+ (:: r;Monad wrap (assert message condition)))
+
(def: #hidden (run' tests)
(-> (List [Text (IO Test) Text]) (Promise Counters))
(do Monad
[test-runs (|> tests
- (L/map (: (-> [Text (IO Test) Text] (Promise Counters))
- (function [[module test description]]
- (do @
- [#let [pre (io;run instant;now)]
- [counters documentation] (io;run test)
- #let [post (io;run instant;now)
- _ (log! (format "@ " module " "
- "(" (%i (duration;to-millis (instant;span pre post))) "ms" ")"
- "\n"
- description "\n"
- "\n" documentation "\n"))]]
- (wrap counters)))))
- (M;seq @))]
- (wrap (L/fold add-counters start test-runs))))
-
-(def: pcg-32-magic-inc Nat +12345)
-
-(type: #export Seed
- {#;doc "The seed value used for random testing (if that feature is used)."}
- Nat)
+ (list/map (: (-> [Text (IO Test) Text] (Promise Counters))
+ (function [[module test description]]
+ (do @
+ [#let [pre (io;run instant;now)
+ seed (int-to-nat (instant;to-millis pre))]
+ [counters documentation] (|> (io;run test)
+ (r;run (r;pcg-32 [pcg-32-magic-inc seed]))
+ product;right)
+ #let [post (io;run instant;now)
+ _ (log! (format "@ " module " "
+ "(" (%i (duration;to-millis (instant;span pre post))) "ms" ")"
+ "\n"
+ description "\n"
+ "\n" documentation "\n"))]]
+ (wrap counters)))))
+ (monad;seq @))]
+ (wrap (list/fold add-counters start test-runs))))
(def: failed?
(-> Counters Bool)
(|>. product;right (n.> +0)))
-(def: (try seed random-test)
- (-> Seed (r;Random Test) (Promise [Seed [Counters Text]]))
- (let [[prng [new-seed test]] (r;run (r;pcg-32 [pcg-32-magic-inc seed])
- (do r;Monad
- [test random-test
- next-seed r;nat]
- (wrap [next-seed test])))]
- (do Monad
- [result test]
- (wrap [new-seed result]))))
-
-(def: (repeat' seed times random-test)
- (-> Seed Nat (r;Random Test) Test)
- (if (n.= +0 times)
- (fail "Cannot try a test 0 times.")
- (do Monad
- [[seed' [counters documentation]] (try seed random-test)]
- (cond (failed? counters)
- (wrap [counters
- (format "Context failed with this seed: " (%n seed) "\n" documentation)])
-
- (n.= +1 times)
- (wrap [counters documentation])
-
- ## else
- (repeat' seed' (n.dec times) random-test)))))
-
-(def: #hidden (repeat ?seed times random-test)
- (-> (Maybe Nat) Nat (r;Random Test) Test)
- (repeat' (maybe;default (|> (io;run instant;now) instant;to-millis int-to-nat)
- ?seed)
- (case ?seed
- #;None times
- (#;Some _) +1)
- random-test))
+(def: #export (seed value test)
+ (-> Seed Test Test)
+ (function [prng]
+ (let [[_ result] (r;run (r;pcg-32 [pcg-32-magic-inc value])
+ test)]
+ [prng result])))
+
+(def: #export (times amount test)
+ (-> Nat Test Test)
+ (cond (n.= +0 amount)
+ (fail "Cannot try a test 0 times.")
+
+ (n.= +1 amount)
+ test
+
+ ## else
+ (function [prng]
+ (let [[prng' instance] (r;run prng test)]
+ [prng' (do Monad
+ [[counters documentation] instance]
+ (if (failed? counters)
+ (wrap [counters documentation])
+ (product;right (r;run prng' (times (n.dec amount) test)))))]))))
## [Syntax]
-(type: Test-Config
- (#Seed Nat)
- (#Times Nat))
-
-(type: Property-Test
- {#seed (Maybe Test-Config)
- #bindings (List [Code Code])
- #body Code})
-
-(type: Test-Kind
- (#Property Property-Test)
- (#Simple Code))
-
-(def: config^
- (Syntax Test-Config)
- (p;alt (do p;Monad
- [_ (s;this (' #seed))]
- s;nat)
- (do p;Monad
- [_ (s;this (' #times))]
- s;nat)))
-
-(def: property-test^
- (Syntax Property-Test)
- ($_ p;seq
- (p;maybe config^)
- (s;tuple (p;some (p;seq s;any s;any)))
- s;any))
-
-(def: test^
- (Syntax Test-Kind)
- (p;alt property-test^
- s;any))
-
-(def: (pair-to-list [x y])
- (All [a] (-> [a a] (List a)))
- (list x y))
-
-(def: #hidden (try-body lazy-body)
- (-> (IO Test) Test)
- (case (_lux_proc ["lux" "try"] [lazy-body])
- (#E;Success output)
- output
-
- (#E;Error error)
- (test error false)))
+(def: #hidden (try-test test)
+ (-> (IO Test) (IO Test))
+ (do Monad
+ [now instant;now
+ #let [seed (|> now instant;to-millis int-to-nat)]]
+ (io (do r;Monad
+ [instance (case (_lux_proc ["lux" "try"] [test])
+ (#e;Success test)
+ test
+
+ (#e;Error error)
+ (fail error))]
+ (wrap (do Monad
+ [[counter documentation] instance]
+ (if (failed? counter)
+ (wrap [counter (format "Context failed with this seed: " (%n seed) "\n" documentation)])
+ (wrap [counter documentation]))))))))
(def: #hidden _code/text_ code;text)
-(syntax: #export (context: description [body test^])
+(syntax: #export (context: description test)
{#;doc (doc "Macro for definint tests."
(context: "Simple macros and constructs"
($_ seq
@@ -202,70 +172,56 @@
(is "lol" (maybe;default "yolo"
(#;Some "lol")))))
))
+
"Also works with random generation of values for property-based testing."
(context: "Addition & Substraction"
- [x (:: @ map rand-gen)
- y (:: @ map rand-gen)]
- (test ""
- (and (|> x (- y) (+ y) (= x))
- (|> x (+ y) (- y) (= x)))))
+ (do @
+ [x (:: @ map rand-gen)
+ y (:: @ map rand-gen)]
+ (test ""
+ (and (|> x (- y) (+ y) (= x))
+ (|> x (+ y) (- y) (= x))))))
+
"By default, random tests will be tried 100 times, you can specify the amount you want:"
(context: "Addition & Substraction"
- #times +1234
- [x (:: @ map rand-gen)
- y (:: @ map rand-gen)]
- (test ""
- (and (|> x (- y) (+ y) (= x))
- (|> x (+ y) (- y) (= x)))))
+ (<| (times +1234)
+ (do @
+ [x (:: @ map rand-gen)
+ y (:: @ map rand-gen)]
+ (test ""
+ (and (|> x (- y) (+ y) (= x))
+ (|> x (+ y) (- y) (= x)))))))
+
"If a test fails, you'll be shown a seed that you can then use to reproduce a failing scenario."
(context: "Addition & Substraction"
- #seed +987654321
- [x (:: @ map rand-gen)
- y (:: @ map rand-gen)]
- (test ""
- (and (|> x (- y) (+ y) (= x))
- (|> x (+ y) (- y) (= x)))))
+ (<| (seed +987654321)
+ (do @
+ [x (:: @ map rand-gen)
+ y (:: @ map rand-gen)]
+ (test ""
+ (and (|> x (- y) (+ y) (= x))
+ (|> x (+ y) (- y) (= x)))))))
)}
- (let [body (case body
- (#Property config bindings body)
- (let [[=seed =times] (case config
- #;None
- [(` #;None) +100]
-
- (#;Some (#Seed value))
- [(` (#;Some (~ (code;nat value)))) +100]
-
- (#;Some (#Times value))
- [(` #;None) value])
- bindings' (|> bindings (L/map pair-to-list) L/join)]
- (` (repeat (~ =seed)
- (~ (code;nat =times))
- (do r;Monad
- [(~@ bindings')]
- ((~' wrap) (;;try-body (io;io (~ body))))))))
-
- (#Simple body)
- body)]
- (with-gensyms [g!test]
- (wrap (list (` (def: #export (~ g!test)
- {#;;test (;;_code/text_ (~ description))}
- (IO Test)
- (io (~ body)))))))))
+ (with-gensyms [g!test]
+ (wrap (list (` (def: #export (~ g!test)
+ {#;;test (;;_code/text_ (~ description))}
+ (IO Test)
+ (;;try-test (io (do ;;Monad [] (~ test))))))))))
(def: (exported-tests module-name)
(-> Text (Meta (List [Text Text Text])))
(do Monad
[defs (meta;exports module-name)]
(wrap (|> defs
- (L/map (function [[def-name [_ def-anns _]]]
- (case (meta;get-text-ann (ident-for #;;test) def-anns)
- (#;Some description)
- [true module-name def-name description]
+ (list/map (function [[def-name [_ def-anns _]]]
+ (case (meta;get-text-ann (ident-for #;;test) def-anns)
+ (#;Some description)
+ [true module-name def-name description]
- _
- [false module-name def-name ""])))
+ _
+ [false module-name def-name ""])))
(list;filter product;left)
- (L/map product;right)))))
+ (list/map product;right)))))
(def: #hidden _composeT_ (-> Text Text Text) (:: text;Monoid compose))
(def: #hidden _%i_ (-> Int Text) %i)
@@ -280,22 +236,22 @@
tests (: (Meta (List [Text Text Text]))
(|> (#;Cons current-module modules)
list;reverse
- (M;map @ exported-tests)
- (:: @ map L/join)))
- #let [tests+ (L/map (function [[module-name test desc]]
- (` [(~ (code;text module-name)) (~ (code;symbol [module-name test])) (~ (code;text desc))]))
- tests)
+ (monad;map @ exported-tests)
+ (:: @ map list/join)))
+ #let [tests+ (list/map (function [[module-name test desc]]
+ (` [(~ (code;text module-name)) (~ (code;symbol [module-name test])) (~ (code;text desc))]))
+ tests)
num-tests (list;size tests+)
groups (list;split-all promise;concurrency-level tests+)]]
(wrap (list (` (: (IO Unit)
(io (exec (do Monad
[(~' #let) [(~ g!total-successes) +0
(~ g!total-failures) +0]
- (~@ (L/join (L/map (function [group]
- (list (` [(~ g!successes) (~ g!failures)]) (` (run' (list (~@ group))))
- (' #let) (` [(~ g!total-successes) (n.+ (~ g!successes) (~ g!total-successes))
- (~ g!total-failures) (n.+ (~ g!failures) (~ g!total-failures))])))
- groups)))]
+ (~@ (list/join (list/map (function [group]
+ (list (` [(~ g!successes) (~ g!failures)]) (` (run' (list (~@ group))))
+ (' #let) (` [(~ g!total-successes) (n.+ (~ g!successes) (~ g!total-successes))
+ (~ g!total-failures) (n.+ (~ g!failures) (~ g!total-failures))])))
+ groups)))]
(exec (log! ($_ _composeT_
"Test-suite finished."
"\n"
@@ -314,8 +270,11 @@
(def: #export (seq left right)
{#;doc "Sequencing combinator."}
(-> Test Test Test)
- (do Monad
- [[l-counter l-documentation] left
- [r-counter r-documentation] right]
- (wrap [(add-counters l-counter r-counter)
- (format l-documentation "\n" r-documentation)])))
+ (do r;Monad
+ [left left
+ right right]
+ (wrap (do Monad
+ [[l-counter l-documentation] left
+ [r-counter r-documentation] right]
+ (wrap [(add-counters l-counter r-counter)
+ (format l-documentation "\n" r-documentation)])))))
--
cgit v1.2.3