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;; Copyright (C) 2020 Free Software Foundation, Inc.
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License as published by the Free Software Foundation; either
;; version 3 of the License, or (at your option) any later version.
;;
;; This library is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; Lesser General Public License for more details.
;;
;; You should have received a copy of the GNU Lesser General Public
;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (test-srfi-171)
#:use-module (test-suite lib)
#:use-module (ice-9 hash-table)
#:use-module (srfi srfi-171)
#:use-module (srfi srfi-171 gnu)
#:use-module (rnrs bytevectors)
#:use-module ((rnrs hashtables) #:prefix rnrs:)
#:use-module ((srfi srfi-69) #:prefix srfi:))
(define (add1 x) (+ x 1))
(define numeric-list (iota 5))
(define numeric-vec (list->vector numeric-list))
(define bv (list->u8vector numeric-list))
(define test-string "0123456789abcdef")
(define list-of-chars (string->list test-string))
;; for testing all treplace variations
(define replace-alist '((1 . s) (2 . c) (3 . h) (4 . e) (5 . m)))
(define guile-hashtable (alist->hash-table replace-alist))
(define srfi69-hashtable (srfi:alist->hash-table replace-alist))
(define rnrs-hashtable (rnrs:make-eq-hashtable))
(rnrs:hashtable-set! rnrs-hashtable 1 's)
(rnrs:hashtable-set! rnrs-hashtable 2 'c)
(rnrs:hashtable-set! rnrs-hashtable 3 'h)
(rnrs:hashtable-set! rnrs-hashtable 4 'e)
(rnrs:hashtable-set! rnrs-hashtable 5 'm)
(define (replace-function val)
(case val
((1) 's)
((2) 'c)
((3) 'h)
((4) 'e)
((5) 'm)
(else val)))
;; Test procedures for port-transduce
;; broken out to properly close port
(define (port-transduce-test)
(let* ((port (open-input-string "0 1 2 3 4"))
(res (equal? 15 (port-transduce (tmap add1) + read
(open-input-string "0 1 2 3 4")))))
(close-port port)
res))
(define (port-transduce-with-identity-test)
(let* ((port (open-input-string "0 1 2 3 4"))
(res (equal? 15 (port-transduce (tmap add1)
+
0
read
(open-input-string "0 1 2 3 4")))))
(close-port port)
res))
(with-test-prefix "transducers"
(pass-if "tmap" (equal? '(1 2 3 4 5) (list-transduce (tmap add1)
rcons
numeric-list)))
(pass-if "tfilter" (equal? '(0 2 4) (list-transduce (tfilter even?)
rcons
numeric-list)))
(pass-if "tfilter+tmap" (equal?
'(1 3 5)
(list-transduce (compose (tfilter even?) (tmap add1))
rcons
numeric-list)))
(pass-if "tfilter-map"
(equal? '(1 3 5)
(list-transduce (tfilter-map
(lambda (x)
(if (even? x)
(+ x 1)
#f)))
rcons numeric-list)))
(pass-if "tremove"
(equal? (list-transduce (tremove char-alphabetic?)
rcount
list-of-chars)
(string-transduce (tremove char-alphabetic?)
rcount
test-string)))
(pass-if "treplace with alist"
(equal? '(s c h e m e r o c k s)
(list-transduce (treplace replace-alist)
rcons
'(1 2 3 4 5 4 r o c k s) )))
(pass-if "treplace with replace-function"
(equal? '(s c h e m e r o c k s)
(list-transduce (treplace replace-function)
rcons
'(1 2 3 4 5 4 r o c k s))))
(pass-if "treplace with guile hash-table"
(equal? '(s c h e m e r o c k s)
(list-transduce (treplace guile-hashtable)
rcons
'(1 2 3 4 5 4 r o c k s))))
(pass-if "treplace with srfi-69 hash-table"
(equal? '(s c h e m e r o c k s)
(list-transduce (treplace srfi69-hashtable)
rcons
'(1 2 3 4 5 4 r o c k s))))
(pass-if "treplace with rnrs hash-table"
(equal? '(s c h e m e r o c k s)
(list-transduce (treplace rnrs-hashtable)
rcons
'(1 2 3 4 5 4 r o c k s))))
(pass-if "ttake"
(equal? 6 (list-transduce (ttake 4) + numeric-list)))
(pass-if "tdrop"
(equal? 7 (list-transduce (tdrop 3) + numeric-list)))
(pass-if "tdrop-while"
(equal? '(3 4)
(list-transduce (tdrop-while (lambda (x) (< x 3)))
rcons
numeric-list)))
(pass-if "ttake-while"
(equal? '(0 1 2)
(list-transduce (ttake-while (lambda (x) (< x 3)))
rcons
numeric-list)))
(pass-if "tconcatenate"
(equal? '(0 1 2 3 4) (list-transduce tconcatenate
rcons
'((0 1) (2 3) (4)))))
(pass-if "tappend-map"
(equal? '(1 2 2 4 3 6)
(list-transduce (tappend-map (lambda (x) (list x (* x 2))))
rcons
'(1 2 3))))
(pass-if "tdelete-neighbor-duplicates"
(equal? '(1 2 1 2 3)
(list-transduce (tdelete-neighbor-duplicates)
rcons
'(1 1 1 2 2 1 2 3 3))))
(pass-if "tdelete-neighbor-duplicates with equality predicate"
(equal? '(a b c "hej" "hej")
(list-transduce (tdelete-neighbor-duplicates eq?)
rcons
(list 'a 'a 'b 'c 'c "hej" (string #\h #\e #\j)))))
(pass-if "tdelete-duplicates"
(equal? '(1 2 3 4)
(list-transduce (tdelete-duplicates)
rcons
'(1 1 2 1 2 3 3 1 2 3 4))))
(pass-if "tdelete-duplicates with predicate"
(equal? '("hej" "hopp")
(list-transduce (tdelete-duplicates string-ci=?)
rcons
(list "hej" "HEJ" "hopp" "HOPP" "heJ"))))
(pass-if "tflatten"
(equal? '(1 2 3 4 5 6 7 8 9)
(list-transduce tflatten rcons '((1 2) 3 (4 (5 6) 7) 8 (9)))))
(pass-if "tpartition"
(equal? '((1 1 1 1) (2 2 2 2) (3 3 3) (4 4 4 4))
(list-transduce (tpartition even?)
rcons
'(1 1 1 1 2 2 2 2 3 3 3 4 4 4 4))))
(pass-if "tsegment"
(equal? '((0 1) (2 3) (4))
(vector-transduce (tsegment 2) rcons numeric-vec)))
(pass-if "tadd-between"
(equal? '(0 and 1 and 2 and 3 and 4)
(list-transduce (tadd-between 'and) rcons numeric-list)))
(pass-if "tenumerate"
(equal? '((-1 . 0) (0 . 1) (1 . 2) (2 . 3) (3 . 4))
(list-transduce (tenumerate (- 1)) rcons numeric-list)))
(pass-if "tbatch"
(equal?
'((0 1) (2 3) (4))
(list-transduce (tbatch (ttake 2) rcons) rcons numeric-list)))
(pass-if "tfold"
(equal?
'(0 1 3 6 10)
(list-transduce (tfold +) rcons numeric-list))))
(with-test-prefix "x-transduce"
(pass-if "list-transduce"
(equal? 15 (list-transduce (tmap add1) + numeric-list)))
(pass-if "list-transduce with identity"
(equal? 15 (list-transduce (tmap add1) + 0 numeric-list)))
(pass-if "vector-transduce"
(equal? 15 (vector-transduce (tmap add1) + numeric-vec)))
(pass-if "vector-transduce with identity"
(equal? 15
(vector-transduce (tmap add1) + 0 numeric-vec)))
(pass-if "port-transduce" (port-transduce-test))
(pass-if "port-transduce with identity" (port-transduce-with-identity-test))
;; Converts each numeric char to it's corresponding integer and sums them.
(pass-if "string-transduce"
(equal?
15
(string-transduce (tmap (lambda (x) (- (char->integer x) 47))) + "01234")))
(pass-if "string-transduce with identity"
(equal?
15
(string-transduce (tmap (lambda (x) (- (char->integer x) 47)))
+
0
"01234")))
(pass-if "generator-transduce"
(equal?
'(1 2 3)
(parameterize ((current-input-port (open-input-string "1 2 3")))
(generator-transduce (tmap (lambda (x) x)) rcons read))))
(pass-if "generator-transduce with identity"
(equal?
'(1 2 3)
(parameterize ((current-input-port (open-input-string "1 2 3")))
(generator-transduce (tmap (lambda (x) x)) rcons '() read))))
(pass-if "bytevector-u8-transduce"
(equal? 15 (bytevector-u8-transduce (tmap add1) + bv)))
(pass-if "bytevector-u8-transduce with identity"
(equal? 15 (bytevector-u8-transduce (tmap add1) + 0 bv))))
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