utils/test: Use test-case and define instead of let.

This commit is contained in:
Sergiu Ivanov 2020-05-24 00:38:05 +02:00
parent b9109faa6e
commit 168b898080

211
utils.rkt
View file

@ -86,11 +86,12 @@
body)])) body)]))
(module+ test (module+ test
(let ([mytable #hash((a . 3) (b . 4))]) (test-case "auto-hash-ref/explicit"
(define mytable #hash((a . 3) (b . 4)))
(check-equal? (auto-hash-ref/explicit (mytable b a) (check-equal? (auto-hash-ref/explicit (mytable b a)
(* a b)) (* a b))
12)) 12)
(let ([ht #hash((a . #t) (b . #f))]) (define ht #hash((a . #t) (b . #f)))
(check-equal? (auto-hash-ref/explicit (ht a b) (check-equal? (auto-hash-ref/explicit (ht a b)
(and (not a) b)) (and (not a) b))
#f))) #f)))
@ -118,13 +119,14 @@
body))])) body))]))
(module+ test (module+ test
(let ([ht #hash((x . #t) (y . #t) (t . #f))] (test-case "auto-hash-ref/:"
[z #t]) (define ht1 #hash((x . #t) (y . #t) (t . #f)))
(check-equal? (auto-hash-ref/: ht (define z #t)
(check-equal? (auto-hash-ref/: ht1
(and :x (not :y) z (or (and :t) :x))) (and :x (not :y) z (or (and :t) :x)))
#f)) #f)
(let ([ht #hash((a . 1) (b . 2))]) (define ht2 #hash((a . 1) (b . 2)))
(check-equal? (auto-hash-ref/: ht (+ :a (* 2 :b))) (check-equal? (auto-hash-ref/: ht2 (+ :a (* 2 :b)))
5))) 5)))
;;; The helper functions for auto-hash-ref/:. ;;; The helper functions for auto-hash-ref/:.
@ -173,9 +175,10 @@
(eval expr))) (eval expr)))
(module+ test (module+ test
(check-equal? (let ([ht #hash((a . 1) (b . 1))]) (test-case "eval-with"
(eval-with ht '(+ b a 1))) (check-equal? (let ([ht #hash((a . 1) (b . 1))])
3)) (eval-with ht '(+ b a 1)))
3)))
;;; Same as eval-with, but returns only the first value produced by ;;; Same as eval-with, but returns only the first value produced by
;;; the evaluated expression. ;;; the evaluated expression.
@ -199,8 +202,9 @@
[else '()])) [else '()]))
(module+ test (module+ test
(check-equal? (extract-symbols '(1 (2 3) x (y z 3))) (test-case "extract-symbols"
'(x y z))) (check-equal? (extract-symbols '(1 (2 3) x (y z 3)))
'(x y z))))
;;; ========================= ;;; =========================
@ -221,9 +225,10 @@
(with-output-to-string (λ () (display x)))) (with-output-to-string (λ () (display x))))
(module+ test (module+ test
(check-equal? (any->string 'a) "a") (test-case "any->string"
(check-equal? (any->string '(a 1 (x y))) "(a 1 (x y))") (check-equal? (any->string 'a) "a")
(check-equal? (any->string "hello") "hello")) (check-equal? (any->string '(a 1 (x y))) "(a 1 (x y))")
(check-equal? (any->string "hello") "hello")))
;;; A string variable mapping is a mapping from variables to strings. ;;; A string variable mapping is a mapping from variables to strings.
(define (string-variable-mapping? dict) (hash/c symbol? string?)) (define (string-variable-mapping? dict) (hash/c symbol? string?))
@ -233,7 +238,8 @@
(for/hash ([(key val) ht]) (values key (any->string val)))) (for/hash ([(key val) ht]) (values key (any->string val))))
(module+ test (module+ test
(let ([mp (stringify-variable-mapping #hash((a . (and a b)) (b . (not b))))]) (test-case "stringify-variable-mapping"
(define mp (stringify-variable-mapping #hash((a . (and a b)) (b . (not b)))))
(check-equal? (hash-ref mp 'a) "(and a b)") (check-equal? (hash-ref mp 'a) "(and a b)")
(check-equal? (hash-ref mp 'b) "(not b)"))) (check-equal? (hash-ref mp 'b) "(not b)")))
@ -242,8 +248,9 @@
(with-input-from-string str (λ () (read)))) (with-input-from-string str (λ () (read))))
(module+ test (module+ test
(check-equal? (string->any "(or b (not a))") '(or b (not a))) (test-case "string->any"
(check-equal? (string->any "14") 14)) (check-equal? (string->any "(or b (not a))") '(or b (not a)))
(check-equal? (string->any "14") 14)))
;;; Given a sexp, converts all "#f" to #f and "#t" to #t. ;;; Given a sexp, converts all "#f" to #f and "#t" to #t.
;;; ;;;
@ -270,7 +277,8 @@
[datum (func datum)])) [datum (func datum)]))
(module+ test (module+ test
(check-equal? (map-sexp add1 '(1 2 (4 10) 3)) '(2 3 (5 11) 4))) (test-case "map-sexp"
(check-equal? (map-sexp add1 '(1 2 (4 10) 3)) '(2 3 (5 11) 4))))
;;; Reads a sexp from a string produced by Org-mode for a named table. ;;; Reads a sexp from a string produced by Org-mode for a named table.
;;; See example.org for examples. ;;; See example.org for examples.
@ -284,10 +292,11 @@
(define unorg read-org-sexp) (define unorg read-org-sexp)
(module+ test (module+ test
(check-equal? (read-org-sexp "((\"a\" \"(and a b)\") (\"b\" \"(or b (not a))\"))") (test-case "read-org-sexp"
'((a (and a b)) (b (or b (not a))))) (check-equal? (read-org-sexp "((\"a\" \"(and a b)\") (\"b\" \"(or b (not a))\"))")
(check-equal? (read-org-sexp "(#t \"#t\" \"#t \" '(1 2 \"#f\"))") '((a (and a b)) (b (or b (not a)))))
'(#t #t #t '(1 2 #f)))) (check-equal? (read-org-sexp "(#t \"#t\" \"#t \" '(1 2 \"#f\"))")
'(#t #t #t '(1 2 #f)))))
;;; A contract allowing pairs constructed via cons or via list. ;;; A contract allowing pairs constructed via cons or via list.
(define (general-pair/c key-contract val-contract) (define (general-pair/c key-contract val-contract)
@ -311,10 +320,11 @@
val))]))) val))])))
(module+ test (module+ test
(check-equal? (unstringify-pairs '(("a" . "1") ("b" . "(and a (not b))"))) (test-case "unstringify-pairs"
'((a . 1) (b . (and a (not b))))) (check-equal? (unstringify-pairs '(("a" . "1") ("b" . "(and a (not b))")))
(check-equal? (unstringify-pairs '(("a" . 1) ("b" . "(and a (not b))"))) '((a . 1) (b . (and a (not b)))))
'((a . 1) (b . (and a (not b)))))) (check-equal? (unstringify-pairs '(("a" . 1) ("b" . "(and a (not b))")))
'((a . 1) (b . (and a (not b)))))))
;;; Reads a variable mapping from a string, such as the one which ;;; Reads a variable mapping from a string, such as the one which
;;; Org-mode produces from tables. ;;; Org-mode produces from tables.
@ -322,9 +332,10 @@
(compose make-immutable-hash unstringify-pairs string->any)) (compose make-immutable-hash unstringify-pairs string->any))
(module+ test (module+ test
(let ([m1 (read-org-variable-mapping "((\"a\" \"(and a b)\") (\"b\" \"(or b (not a))\"))")] (test-case "read-org-variable-mapping"
[m2 (read-org-variable-mapping "((\"a\" . \"(and a b)\") (\"b\" . \"(or b (not a))\"))")] (define m1 (read-org-variable-mapping "((\"a\" \"(and a b)\") (\"b\" \"(or b (not a))\"))"))
[m3 (unorgv "((\"a\" . \"(and a b)\") (\"b\" . \"(or b (not a))\"))")]) (define m2 (read-org-variable-mapping "((\"a\" . \"(and a b)\") (\"b\" . \"(or b (not a))\"))"))
(define m3 (unorgv "((\"a\" . \"(and a b)\") (\"b\" . \"(or b (not a))\"))"))
(check-equal? (hash-ref m1 'a) '(and a b)) (check-equal? (hash-ref m1 'a) '(and a b))
(check-equal? (hash-ref m2 'a) '(and a b)) (check-equal? (hash-ref m2 'a) '(and a b))
(check-equal? (hash-ref m3 'a) '(and a b)) (check-equal? (hash-ref m3 'a) '(and a b))
@ -343,7 +354,8 @@
(string->any (string-append "(" str ")"))) (string->any (string-append "(" str ")")))
(module+ test (module+ test
(check-equal? (read-symbol-list "a b c") '(a b c))) (test-case "read-symbol-list"
(check-equal? (read-symbol-list "a b c") '(a b c))))
;;; Removes the first and the last symbol of a given string. ;;; Removes the first and the last symbol of a given string.
;;; ;;;
@ -353,7 +365,8 @@
(substring str 1 (- (string-length str) 1))) (substring str 1 (- (string-length str) 1)))
(module+ test (module+ test
(check-equal? (drop-first-last "(a b)") "a b")) (test-case "drop-first-last"
(check-equal? (drop-first-last "(a b)") "a b")))
;;; Converts a list of sets of symbols to a list of strings containing ;;; Converts a list of sets of symbols to a list of strings containing
;;; those symbols. ;;; those symbols.
@ -361,8 +374,9 @@
(map (compose drop-first-last any->string set->list) lst)) (map (compose drop-first-last any->string set->list) lst))
(module+ test (module+ test
(check-equal? (list-sets->list-strings (list (set 'x 'y) (set 'z) (set) (set 't))) (test-case "list-sets->list-strings"
'("y x" "z" "" "t"))) (check-equal? (list-sets->list-strings (list (set 'x 'y) (set 'z) (set) (set 't)))
'("y x" "z" "" "t"))))
;;; Pretty-prints a set of sets of symbols. ;;; Pretty-prints a set of sets of symbols.
;;; ;;;
@ -372,7 +386,8 @@
(string-join (for/list ([m ms]) (format "{~a}" (pretty-print-set m))) "")) (string-join (for/list ([m ms]) (format "{~a}" (pretty-print-set m))) ""))
(module+ test (module+ test
(check-equal? (pretty-print-set-sets (set (set 'a 'b) (set 'c))) "{a b}{c}")) (test-case "pretty-print-set-sets"
(check-equal? (pretty-print-set-sets (set (set 'a 'b) (set 'c))) "{a b}{c}")))
;;; ========================== ;;; ==========================
@ -394,12 +409,14 @@
(list (func u) (func v)))))) (list (func u) (func v))))))
(module+ test (module+ test
(let* ([gr1 (directed-graph '((a b) (b c)))] (test-case "update-vertices/unweighted"
[gr2 (undirected-graph '((a b) (b c)))] (define gr1 (directed-graph '((a b) (b c))))
[dbl (λ (x) (let ([x-str (symbol->string x)]) (define gr2 (undirected-graph '((a b) (b c))))
(string->symbol (string-append x-str x-str))))] (define dbl (λ (x) (let ([x-str (symbol->string x)])
[new-gr1 (update-vertices/unweighted gr1 dbl)] (string->symbol (string-append x-str x-str)))))
[new-gr2 (update-vertices/unweighted gr2 dbl)]) (define new-gr1 (update-vertices/unweighted gr1 dbl))
(define new-gr2 (update-vertices/unweighted gr2 dbl))
(check-false (has-vertex? new-gr1 'a)) (check-false (has-vertex? new-gr1 'a))
(check-true (has-vertex? new-gr1 'aa)) (check-true (has-vertex? new-gr1 'aa))
(check-false (has-vertex? new-gr1 'b)) (check-false (has-vertex? new-gr1 'b))
@ -436,14 +453,16 @@
(weighted-graph/directed edges)])) (weighted-graph/directed edges)]))
(module+ test (module+ test
(let* ([gr1 (directed-graph '((a b) (b c)))] (test-case "update-graph"
[gr2 (undirected-graph '((a b) (b c)))] (define gr1 (directed-graph '((a b) (b c))))
[dbl (λ (x) (let ([x-str (symbol->string x)]) (define gr2 (undirected-graph '((a b) (b c))))
(string->symbol (string-append x-str x-str))))] (define dbl (λ (x) (let ([x-str (symbol->string x)])
[new-gr1-ug (update-graph gr1 #:v-func dbl)] (string->symbol (string-append x-str x-str)))))
[new-gr2-ug (update-graph gr2 #:v-func dbl)] (define new-gr1-ug (update-graph gr1 #:v-func dbl))
[gr3 (weighted-graph/directed '((10 a b) (11 b c)))] (define new-gr2-ug (update-graph gr2 #:v-func dbl))
[new-gr3 (update-graph gr3 #:v-func dbl #:e-func (λ (x) (* 2 x)))]) (define gr3 (weighted-graph/directed '((10 a b) (11 b c))))
(define new-gr3 (update-graph gr3 #:v-func dbl #:e-func (λ (x) (* 2 x))))
(check-false (has-vertex? new-gr1-ug 'a)) (check-false (has-vertex? new-gr1-ug 'a))
(check-true (has-vertex? new-gr1-ug 'aa)) (check-true (has-vertex? new-gr1-ug 'aa))
(check-false (has-vertex? new-gr1-ug 'b)) (check-false (has-vertex? new-gr1-ug 'b))
@ -475,7 +494,8 @@
(string-join (sort (set-map s any->string) string<?))) (string-join (sort (set-map s any->string) string<?)))
(module+ test (module+ test
(check-equal? (pretty-print-set (set 'a 'b 1)) "1 a b")) (test-case "pretty-print-set"
(check-equal? (pretty-print-set (set 'a 'b 1)) "1 a b")))
;;; ========================= ;;; =========================
@ -495,8 +515,9 @@
(hash-update ht e (λ (ls) (cons l ls)) empty))) (hash-update ht e (λ (ls) (cons l ls)) empty)))
(module+ test (module+ test
(let-values ([(e1 l1) (collect-by-key '((1 2) (1 3)) '(a b))] (test-case "collect-by-key"
[(e2 l2) (collect-by-key '((1 2) (1 2)) '(a b))]) (define-values (e1 l1) (collect-by-key '((1 2) (1 3)) '(a b)))
(define-values (e2 l2) (collect-by-key '((1 2) (1 2)) '(a b)))
(check-equal? e1 '((1 2) (1 3))) (check-equal? l1 '((a) (b))) (check-equal? e1 '((1 2) (1 3))) (check-equal? l1 '((a) (b)))
(check-equal? e2 '((1 2))) (check-equal? l2 '((b a))))) (check-equal? e2 '((1 2))) (check-equal? l2 '((b a)))))
@ -506,7 +527,8 @@
(values es (map list->set ls)))) (values es (map list->set ls))))
(module+ test (module+ test
(let-values ([(e3 l3) (collect-by-key/sets '(a b a) '(1 2 1))]) (test-case "collect-by-key/sets"
(define-values (e3 l3) (collect-by-key/sets '(a b a) '(1 2 1)))
(check-equal? e3 '(a b)) (check-equal? l3 (list (set 1) (set 2))))) (check-equal? e3 '(a b)) (check-equal? l3 (list (set 1) (set 2)))))
;;; Converts the values of a hash table from lists to sets. ;;; Converts the values of a hash table from lists to sets.
@ -515,16 +537,18 @@
(values k (list->set v)))) (values k (list->set v))))
(module+ test (module+ test
(check-equal? (ht-values/list->set #hash((a . (1 1)))) (test-case "ht-values/list->set"
(hash 'a (set 1)))) (check-equal? (ht-values/list->set #hash((a . (1 1))))
(hash 'a (set 1)))))
;;; Returns the key-value pairs of a given hash table in the order in ;;; Returns the key-value pairs of a given hash table in the order in
;;; which the hash table orders them for hash-map and hash-for-each. ;;; which the hash table orders them for hash-map and hash-for-each.
(define (hash->list/ordered ht) (hash-map ht cons #t)) (define (hash->list/ordered ht) (hash-map ht cons #t))
(module+ test (module+ test
(check-equal? (hash->list/ordered #hash((b . 1) (a . 1))) (test-case "hash->list/ordered"
'((a . 1) (b . 1)))) (check-equal? (hash->list/ordered #hash((b . 1) (a . 1)))
'((a . 1) (b . 1)))))
;;; Given a list of lists, splits every single list at the given ;;; Given a list of lists, splits every single list at the given
;;; position, and then returns two lists: one consisting of the first ;;; position, and then returns two lists: one consisting of the first
@ -538,7 +562,8 @@
[(cons lefts rights) (values lefts rights)])) [(cons lefts rights) (values lefts rights)]))
(module+ test (module+ test
(let-values ([(l1 l2) (multi-split-at '((1 2 3) (a b c)) 2)]) (test-case "multi-split-at"
(define-values (l1 l2) (multi-split-at '((1 2 3) (a b c)) 2))
(check-equal? l1 '((1 2) (a b))) (check-equal? l2 '((3) (c))))) (check-equal? l1 '((1 2) (a b))) (check-equal? l2 '((3) (c)))))
;;; Given a list of lists of the same length, transposes them. ;;; Given a list of lists of the same length, transposes them.
@ -554,7 +579,8 @@
((curry apply) in-parallel))) ((curry apply) in-parallel)))
(module+ test (module+ test
(check-equal? (lists-transpose '((1 2) (a b))) '((1 a) (2 b)))) (test-case "lists-transpose"
(check-equal? (lists-transpose '((1 2) (a b))) '((1 a) (2 b)))))
;;; ========= ;;; =========
@ -568,8 +594,9 @@
[(arity-at-least _) #f] [arity #t])) [(arity-at-least _) #f] [arity #t]))
(module+ test (module+ test
(check-true (procedure-fixed-arity? not)) (test-case "procedure-fixed-arity?"
(check-false (procedure-fixed-arity? +))) (check-true (procedure-fixed-arity? not))
(check-false (procedure-fixed-arity? +))))
;;; ========== ;;; ==========
@ -597,21 +624,22 @@
[(min max) (for/stream ([i (in-naturals)]) (random min max))])) [(min max) (for/stream ([i (in-naturals)]) (random min max))]))
(module+ test (module+ test
(check-equal? (stream->list (stream-take (in-random 100) 10)) (test-case "in-random"
'(85 65 20 40 89 45 54 38 26 62)) (check-equal? (stream->list (stream-take (in-random 100) 10))
(check-equal? (stream->list (stream-take (in-random 50 100) 10)) '(85 65 20 40 89 45 54 38 26 62))
'(75 59 82 85 61 85 59 64 75 53)) (check-equal? (stream->list (stream-take (in-random 50 100) 10))
(check-equal? (stream->list (stream-take (in-random) 10)) '(75 59 82 85 61 85 59 64 75 53))
'(0.1656109603231493 (check-equal? (stream->list (stream-take (in-random) 10))
0.9680391127132195 '(0.1656109603231493
0.051518813640790355 0.9680391127132195
0.755901955353936 0.051518813640790355
0.5923534604277275 0.755901955353936
0.5513340634474264 0.5923534604277275
0.7022057040731392 0.5513340634474264
0.48375400938578744 0.7022057040731392
0.7538961707172924 0.48375400938578744
0.01828428516237329))) 0.7538961707172924
0.01828428516237329))))
;;; =========================== ;;; ===========================
@ -634,16 +662,17 @@
(foldr cp-2 (sequence->stream (in-value (list))) ss)) (foldr cp-2 (sequence->stream (in-value (list))) ss))
(module+ test (module+ test
(check-equal? (stream->list (cartesian-product/stream (in-range 3) (in-range 4 6) '(a b))) (test-case "cartesian-product/stream"
'((0 4 a) (check-equal? (stream->list (cartesian-product/stream (in-range 3) (in-range 4 6) '(a b)))
(0 4 b) '((0 4 a)
(0 5 a) (0 4 b)
(0 5 b) (0 5 a)
(1 4 a) (0 5 b)
(1 4 b) (1 4 a)
(1 5 a) (1 4 b)
(1 5 b) (1 5 a)
(2 4 a) (1 5 b)
(2 4 b) (2 4 a)
(2 5 a) (2 4 b)
(2 5 b)))) (2 5 a)
(2 5 b)))))