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926 lines
24 KiB
Scheme
926 lines
24 KiB
Scheme
;;;; srfi-1.test --- Test suite for Guile's SRFI-1 functions. -*- scheme -*-
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;;;;
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;;;; Copyright 2003, 2004 Free Software Foundation, Inc.
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;;;;
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;;;; This program is free software; you can redistribute it and/or modify
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;;;; it under the terms of the GNU General Public License as published by
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;;;; the Free Software Foundation; either version 2, or (at your option)
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;;;; any later version.
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;;;;
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;;;; This program is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;;; GNU General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this software; see the file COPYING. If not, write to
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;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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;;;; Boston, MA 02111-1307 USA
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(use-modules (srfi srfi-1)
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(test-suite lib))
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(define (ref-delete x lst . proc)
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"Reference implemenation of srfi-1 `delete'."
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(set! proc (if (null? proc) equal? (car proc)))
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(do ((ret '())
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(lst lst (cdr lst)))
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((null? lst)
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(reverse! ret))
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(if (not (proc x (car lst)))
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(set! ret (cons (car lst) ret)))))
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(define (ref-delete-duplicates lst . proc)
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"Reference implemenation of srfi-1 `delete-duplicates'."
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(set! proc (if (null? proc) equal? (car proc)))
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(if (null? lst)
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'()
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(do ((keep '()))
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((null? lst)
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(reverse! keep))
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(let ((elem (car lst)))
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(set! keep (cons elem keep))
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(set! lst (ref-delete elem lst proc))))))
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;;
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;; alist-copy
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;;
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(with-test-prefix "alist-copy"
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;; return a list which is the pairs making up alist A, the spine and cells
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(define (alist-pairs a)
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(let more ((a a)
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(result a))
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(if (pair? a)
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(more (cdr a) (cons a result))
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result)))
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;; return a list of the elements common to lists X and Y, compared with eq?
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(define (common-elements x y)
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(if (null? x)
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'()
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(if (memq (car x) y)
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(cons (car x) (common-elements (cdr x) y))
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(common-elements (cdr x) y))))
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;; validate an alist-copy of OLD to NEW
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;; lists must be equal, and must comprise new pairs
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(define (valid-alist-copy? old new)
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(and (equal? old new)
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(null? (common-elements old new))))
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(pass-if-exception "too few args" exception:wrong-num-args
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(alist-copy))
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(pass-if-exception "too many args" exception:wrong-num-args
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(alist-copy '() '()))
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(let ((old '()))
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(pass-if old (valid-alist-copy? old (alist-copy old))))
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(let ((old '((1 . 2))))
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(pass-if old (valid-alist-copy? old (alist-copy old))))
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(let ((old '((1 . 2) (3 . 4))))
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(pass-if old (valid-alist-copy? old (alist-copy old))))
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(let ((old '((1 . 2) (3 . 4) (5 . 6))))
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(pass-if old (valid-alist-copy? old (alist-copy old)))))
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;;
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;; alist-delete
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;;
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(with-test-prefix "alist-delete"
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(pass-if "equality call arg order"
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(let ((good #f))
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(alist-delete 'k '((ak . 123))
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(lambda (k ak)
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(if (and (eq? k 'k) (eq? ak 'ak))
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(set! good #t))))
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good))
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(pass-if "delete keys greater than 5"
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(equal? '((4 . x) (5 . y))
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(alist-delete 5 '((4 . x) (5 . y) (6 . z)) <)))
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(pass-if "empty"
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(equal? '() (alist-delete 'x '())))
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(pass-if "(y)"
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(equal? '() (alist-delete 'y '((y . 1)))))
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(pass-if "(n)"
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(equal? '((n . 1)) (alist-delete 'y '((n . 1)))))
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(pass-if "(y y)"
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(equal? '() (alist-delete 'y '((y . 1) (y . 2)))))
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(pass-if "(n y)"
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(equal? '((n . 1)) (alist-delete 'y '((n . 1) (y . 2)))))
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(pass-if "(y n)"
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(equal? '((n . 2)) (alist-delete 'y '((y . 1) (n . 2)))))
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(pass-if "(n n)"
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(equal? '((n . 1) (n . 2)) (alist-delete 'y '((n . 1) (n . 2)))))
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(pass-if "(y y y)"
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(equal? '() (alist-delete 'y '((y . 1) (y . 2) (y . 3)))))
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(pass-if "(n y y)"
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(equal? '((n . 1)) (alist-delete 'y '((n . 1) (y . 2) (y . 3)))))
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(pass-if "(y n y)"
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(equal? '((n . 2)) (alist-delete 'y '((y . 1) (n . 2) (y . 3)))))
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(pass-if "(n n y)"
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(equal? '((n . 1) (n . 2)) (alist-delete 'y '((n . 1) (n . 2) (y . 3)))))
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(pass-if "(y y n)"
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(equal? '( (n . 3)) (alist-delete 'y '((y . 1) (y . 2) (n . 3)))))
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(pass-if "(n y n)"
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(equal? '((n . 1) (n . 3)) (alist-delete 'y '((n . 1) (y . 2) (n . 3)))))
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(pass-if "(y n n)"
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(equal? '((n . 2) (n . 3)) (alist-delete 'y '((y . 1) (n . 2) (n . 3)))))
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(pass-if "(n n n)"
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(equal? '((n . 1) (n . 2) (n . 3)) (alist-delete 'y '((n . 1) (n . 2) (n . 3))))))
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;;
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;; append-map
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;;
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(with-test-prefix "append-map"
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(with-test-prefix "one list"
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(pass-if "()"
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(equal? '() (append-map noop '(()))))
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(pass-if "(1)"
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(equal? '(1) (append-map noop '((1)))))
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(pass-if "(1 2)"
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(equal? '(1 2) (append-map noop '((1 2)))))
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(pass-if "() ()"
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(equal? '() (append-map noop '(() ()))))
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(pass-if "() (1)"
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(equal? '(1) (append-map noop '(() (1)))))
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(pass-if "() (1 2)"
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(equal? '(1 2) (append-map noop '(() (1 2)))))
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(pass-if "(1) (2)"
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(equal? '(1 2) (append-map noop '((1) (2)))))
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(pass-if "(1 2) ()"
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(equal? '(1 2) (append-map noop '(() (1 2))))))
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(with-test-prefix "two lists"
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(pass-if "() / 9"
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(equal? '() (append-map noop '(()) '(9))))
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(pass-if "(1) / 9"
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(equal? '(1) (append-map noop '((1)) '(9))))
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(pass-if "() () / 9 9"
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(equal? '() (append-map noop '(() ()) '(9 9))))
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(pass-if "(1) (2) / 9"
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(equal? '(1) (append-map noop '((1) (2)) '(9))))
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(pass-if "(1) (2) / 9 9"
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(equal? '(1 2) (append-map noop '((1) (2)) '(9 9))))))
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;;
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;; break
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;;
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(with-test-prefix "break"
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(define (test-break lst want-v1 want-v2)
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(call-with-values
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(lambda ()
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(break negative? lst))
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(lambda (got-v1 got-v2)
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(and (equal? got-v1 want-v1)
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(equal? got-v2 want-v2)))))
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(pass-if "empty"
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(test-break '() '() '()))
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(pass-if "y"
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(test-break '(1) '(1) '()))
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(pass-if "n"
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(test-break '(-1) '() '(-1)))
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(pass-if "yy"
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(test-break '(1 2) '(1 2) '()))
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(pass-if "ny"
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(test-break '(-1 1) '() '(-1 1)))
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(pass-if "yn"
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(test-break '(1 -1) '(1) '(-1)))
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(pass-if "nn"
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(test-break '(-1 -2) '() '(-1 -2)))
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(pass-if "yyy"
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(test-break '(1 2 3) '(1 2 3) '()))
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(pass-if "nyy"
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(test-break '(-1 1 2) '() '(-1 1 2)))
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(pass-if "yny"
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(test-break '(1 -1 2) '(1) '(-1 2)))
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(pass-if "nny"
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(test-break '(-1 -2 1) '() '(-1 -2 1)))
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(pass-if "yyn"
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(test-break '(1 2 -1) '(1 2) '(-1)))
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(pass-if "nyn"
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(test-break '(-1 1 -2) '() '(-1 1 -2)))
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(pass-if "ynn"
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(test-break '(1 -1 -2) '(1) '(-1 -2)))
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(pass-if "nnn"
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(test-break '(-1 -2 -3) '() '(-1 -2 -3))))
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;;
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;; concatenate and concatenate!
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;;
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(let ()
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(define (common-tests concatenate-proc unmodified?)
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(define (try lstlst want)
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(let ((lstlst-copy (copy-tree lstlst))
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(got (concatenate-proc lstlst)))
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(if unmodified?
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(if (not (equal? lstlst lstlst-copy))
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(error "input lists modified")))
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(equal? got want)))
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(pass-if-exception "too few args" exception:wrong-num-args
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(concatenate-proc))
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(pass-if-exception "too many args" exception:wrong-num-args
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(concatenate-proc '() '()))
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(pass-if "no lists"
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(try '() '()))
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(pass-if (try '((1)) '(1)))
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(pass-if (try '((1 2)) '(1 2)))
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(pass-if (try '(() (1)) '(1)))
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(pass-if (try '(() () (1)) '(1)))
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(pass-if (try '((1) (2)) '(1 2)))
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(pass-if (try '(() (1 2)) '(1 2)))
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(pass-if (try '((1) 2) '(1 . 2)))
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(pass-if (try '((1) (2) 3) '(1 2 . 3)))
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(pass-if (try '((1) (2) (3 . 4)) '(1 2 3 . 4)))
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)
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(with-test-prefix "concatenate"
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(common-tests concatenate #t))
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(with-test-prefix "concatenate!"
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(common-tests concatenate! #f)))
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;;
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;; count
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;;
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(with-test-prefix "count"
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(pass-if-exception "no args" exception:wrong-num-args
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(count))
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(pass-if-exception "one arg" exception:wrong-num-args
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(count noop))
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(with-test-prefix "one list"
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(define (or1 x)
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x)
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(pass-if "empty list" (= 0 (count or1 '())))
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(pass-if-exception "pred arg count 0" exception:wrong-type-arg
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(count (lambda () x) '(1 2 3)))
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(pass-if-exception "pred arg count 2" exception:wrong-type-arg
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(count (lambda (x y) x) '(1 2 3)))
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(pass-if-exception "improper 1" exception:wrong-type-arg
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(count or1 1))
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(pass-if-exception "improper 2" exception:wrong-type-arg
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(count or1 '(1 . 2)))
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(pass-if-exception "improper 3" exception:wrong-type-arg
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(count or1 '(1 2 . 3)))
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(pass-if (= 0 (count or1 '(#f))))
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(pass-if (= 1 (count or1 '(#t))))
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(pass-if (= 0 (count or1 '(#f #f))))
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(pass-if (= 1 (count or1 '(#f #t))))
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(pass-if (= 1 (count or1 '(#t #f))))
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(pass-if (= 2 (count or1 '(#t #t))))
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(pass-if (= 0 (count or1 '(#f #f #f))))
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(pass-if (= 1 (count or1 '(#f #f #t))))
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(pass-if (= 1 (count or1 '(#t #f #f))))
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(pass-if (= 2 (count or1 '(#t #f #t))))
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(pass-if (= 3 (count or1 '(#t #t #t)))))
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(with-test-prefix "two lists"
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(define (or2 x y)
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(or x y))
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(pass-if "arg order"
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(= 1 (count (lambda (x y)
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(and (= 1 x)
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(= 2 y)))
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'(1) '(2))))
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(pass-if "empty lists" (= 0 (count or2 '() '())))
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(pass-if-exception "pred arg count 0" exception:wrong-type-arg
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(count (lambda () #t) '(1 2 3) '(1 2 3)))
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(pass-if-exception "pred arg count 1" exception:wrong-type-arg
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(count (lambda (x) x) '(1 2 3) '(1 2 3)))
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(pass-if-exception "pred arg count 3" exception:wrong-type-arg
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(count (lambda (x y z) x) '(1 2 3) '(1 2 3)))
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(pass-if-exception "improper first 1" exception:wrong-type-arg
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(count or2 1 '(1 2 3)))
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(pass-if-exception "improper first 2" exception:wrong-type-arg
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(count or2 '(1 . 2) '(1 2 3)))
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(pass-if-exception "improper first 3" exception:wrong-type-arg
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(count or2 '(1 2 . 3) '(1 2 3)))
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(pass-if-exception "improper second 1" exception:wrong-type-arg
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(count or2 '(1 2 3) 1))
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(pass-if-exception "improper second 2" exception:wrong-type-arg
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(count or2 '(1 2 3) '(1 . 2)))
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(pass-if-exception "improper second 3" exception:wrong-type-arg
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(count or2 '(1 2 3) '(1 2 . 3)))
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(pass-if (= 0 (count or2 '(#f) '(#f))))
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(pass-if (= 1 (count or2 '(#t) '(#f))))
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(pass-if (= 1 (count or2 '(#f) '(#t))))
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(pass-if (= 0 (count or2 '(#f #f) '(#f #f))))
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(pass-if (= 1 (count or2 '(#t #f) '(#t #f))))
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(pass-if (= 2 (count or2 '(#t #t) '(#f #f))))
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(pass-if (= 2 (count or2 '(#t #f) '(#f #t))))
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(with-test-prefix "stop shortest"
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(pass-if (= 2 (count or2 '(#t #f #t) '(#f #t))))
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(pass-if (= 2 (count or2 '(#t #f #t #t) '(#f #t))))
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(pass-if (= 2 (count or2 '(#t #f) '(#f #t #t))))
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(pass-if (= 2 (count or2 '(#t #f) '(#f #t #t #t))))))
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(with-test-prefix "three lists"
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(define (or3 x y z)
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(or x y z))
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(pass-if "arg order"
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(= 1 (count (lambda (x y z)
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(and (= 1 x)
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(= 2 y)
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(= 3 z)))
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'(1) '(2) '(3))))
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(pass-if "empty lists" (= 0 (count or3 '() '() '())))
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;; currently bad pred argument gives wrong-num-args when 3 or more
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;; lists, as opposed to wrong-type-arg for 1 or 2 lists
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(pass-if-exception "pred arg count 0" exception:wrong-num-args
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(count (lambda () #t) '(1 2 3) '(1 2 3) '(1 2 3)))
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(pass-if-exception "pred arg count 2" exception:wrong-num-args
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(count (lambda (x y) x) '(1 2 3) '(1 2 3)'(1 2 3) ))
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(pass-if-exception "pred arg count 4" exception:wrong-num-args
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(count (lambda (w x y z) x) '(1 2 3) '(1 2 3) '(1 2 3)))
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(pass-if-exception "improper first 1" exception:wrong-type-arg
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(count or3 1 '(1 2 3) '(1 2 3)))
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(pass-if-exception "improper first 2" exception:wrong-type-arg
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(count or3 '(1 . 2) '(1 2 3) '(1 2 3)))
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(pass-if-exception "improper first 3" exception:wrong-type-arg
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(count or3 '(1 2 . 3) '(1 2 3) '(1 2 3)))
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(pass-if-exception "improper second 1" exception:wrong-type-arg
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(count or3 '(1 2 3) 1 '(1 2 3)))
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(pass-if-exception "improper second 2" exception:wrong-type-arg
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(count or3 '(1 2 3) '(1 . 2) '(1 2 3)))
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(pass-if-exception "improper second 3" exception:wrong-type-arg
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(count or3 '(1 2 3) '(1 2 . 3) '(1 2 3)))
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(pass-if-exception "improper third 1" exception:wrong-type-arg
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(count or3 '(1 2 3) '(1 2 3) 1))
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(pass-if-exception "improper third 2" exception:wrong-type-arg
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(count or3 '(1 2 3) '(1 2 3) '(1 . 2)))
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(pass-if-exception "improper third 3" exception:wrong-type-arg
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(count or3 '(1 2 3) '(1 2 3) '(1 2 . 3)))
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(pass-if (= 0 (count or3 '(#f) '(#f) '(#f))))
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(pass-if (= 1 (count or3 '(#t) '(#f) '(#f))))
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(pass-if (= 1 (count or3 '(#f) '(#t) '(#f))))
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(pass-if (= 1 (count or3 '(#f) '(#f) '(#t))))
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(pass-if (= 0 (count or3 '(#f #f) '(#f #f) '(#f #f))))
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(pass-if (= 1 (count or3 '(#t #f) '(#f #f) '(#f #f))))
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(pass-if (= 1 (count or3 '(#f #t) '(#f #f) '(#f #f))))
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(pass-if (= 1 (count or3 '(#f #f) '(#t #f) '(#f #f))))
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(pass-if (= 1 (count or3 '(#f #f) '(#f #t) '(#f #f))))
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(pass-if (= 1 (count or3 '(#f #f) '(#f #f) '(#t #f))))
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(pass-if (= 1 (count or3 '(#f #f) '(#f #f) '(#f #t))))
|
|
|
|
(pass-if (= 2 (count or3 '(#t #t) '(#f #f) '(#f #f))))
|
|
(pass-if (= 2 (count or3 '(#f #f) '(#t #t) '(#f #f))))
|
|
(pass-if (= 2 (count or3 '(#f #f) '(#f #f) '(#t #t))))
|
|
(pass-if (= 2 (count or3 '(#f #f) '(#t #f) '(#f #t))))
|
|
|
|
(with-test-prefix "stop shortest"
|
|
(pass-if (= 0 (count or3 '() '(#t #t #t) '(#t #t))))
|
|
(pass-if (= 0 (count or3 '(#t #t #t) '() '(#t #t))))
|
|
(pass-if (= 0 (count or3 '(#t #t #t) '(#t #t) '())))
|
|
|
|
(pass-if (= 1 (count or3 '(#t) '(#t #t #t) '(#t #t))))
|
|
(pass-if (= 1 (count or3 '(#t #t #t) '(#t) '(#t #t))))
|
|
(pass-if (= 1 (count or3 '(#t #t #t) '(#t #t) '(#t)))))))
|
|
|
|
;;
|
|
;; delete and delete!
|
|
;;
|
|
|
|
(let ()
|
|
;; Call (PROC lst) for all lists of length up to 6, with all combinations
|
|
;; of elements to be retained or deleted. Elements to retain are numbers,
|
|
;; 0 upwards. Elements to be deleted are #f.
|
|
(define (test-lists proc)
|
|
(do ((n 0 (1+ n)))
|
|
((>= n 6))
|
|
(do ((limit (ash 1 n))
|
|
(i 0 (1+ i)))
|
|
((>= i limit))
|
|
(let ((lst '()))
|
|
(do ((bit 0 (1+ bit)))
|
|
((>= bit n))
|
|
(set! lst (cons (if (logbit? bit i) bit #f) lst)))
|
|
(proc lst)))))
|
|
|
|
(define (common-tests delete-proc)
|
|
(pass-if-exception "too few args" exception:wrong-num-args
|
|
(delete-proc 0))
|
|
|
|
(pass-if-exception "too many args" exception:wrong-num-args
|
|
(delete-proc 0 '() equal? 99))
|
|
|
|
(pass-if "empty"
|
|
(eq? '() (delete-proc 0 '())))
|
|
|
|
(pass-if "equal? (the default)"
|
|
(equal? '((1) (3))
|
|
(delete-proc '(2) '((1) (2) (3)))))
|
|
|
|
(pass-if "eq?"
|
|
(equal? '((1) (2) (3))
|
|
(delete-proc '(2) '((1) (2) (3)) eq?)))
|
|
|
|
(pass-if "called arg order"
|
|
(equal? '(1 2 3)
|
|
(delete-proc 3 '(1 2 3 4 5) <))))
|
|
|
|
(with-test-prefix "delete"
|
|
(common-tests delete)
|
|
|
|
(test-lists
|
|
(lambda (lst)
|
|
(let ((lst-copy (list-copy lst)))
|
|
(with-test-prefix lst-copy
|
|
(pass-if "result"
|
|
(equal? (delete #f lst)
|
|
(ref-delete #f lst)))
|
|
(pass-if "non-destructive"
|
|
(equal? lst-copy lst)))))))
|
|
|
|
(with-test-prefix "delete!"
|
|
(common-tests delete!)
|
|
|
|
(test-lists
|
|
(lambda (lst)
|
|
(pass-if lst
|
|
(equal? (delete! #f lst)
|
|
(ref-delete #f lst)))))))
|
|
|
|
;;
|
|
;; delete-duplicates and delete-duplicates!
|
|
;;
|
|
|
|
(let ()
|
|
;; Call (PROC lst) for all lists of length 1 <= n <= 4, with all
|
|
;; combinations of numbers 1 to n in the elements
|
|
(define (test-lists proc)
|
|
(do ((n 1 (1+ n)))
|
|
((> n 4))
|
|
(do ((limit (integer-expt n n))
|
|
(i 0 (1+ i)))
|
|
((>= i limit))
|
|
(let ((lst '()))
|
|
(do ((j 0 (1+ j))
|
|
(rem i (quotient rem n)))
|
|
((>= j n))
|
|
(set! lst (cons (remainder rem n) lst)))
|
|
(proc lst)))))
|
|
|
|
(define (common-tests delete-duplicates-proc)
|
|
(pass-if-exception "too few args" exception:wrong-num-args
|
|
(delete-duplicates-proc))
|
|
|
|
(pass-if-exception "too many args" exception:wrong-num-args
|
|
(delete-duplicates-proc '() equal? 99))
|
|
|
|
(pass-if "empty"
|
|
(eq? '() (delete-duplicates-proc '())))
|
|
|
|
(pass-if "equal? (the default)"
|
|
(equal? '((2))
|
|
(delete-duplicates-proc '((2) (2) (2)))))
|
|
|
|
(pass-if "eq?"
|
|
(equal? '((2) (2) (2))
|
|
(delete-duplicates-proc '((2) (2) (2)) eq?)))
|
|
|
|
(pass-if "called arg order"
|
|
(let ((ok #t))
|
|
(delete-duplicates-proc '(1 2 3 4 5)
|
|
(lambda (x y)
|
|
(if (> x y)
|
|
(set! ok #f))
|
|
#f))
|
|
ok)))
|
|
|
|
(with-test-prefix "delete-duplicates"
|
|
(common-tests delete-duplicates)
|
|
|
|
(test-lists
|
|
(lambda (lst)
|
|
(let ((lst-copy (list-copy lst)))
|
|
(with-test-prefix lst-copy
|
|
(pass-if "result"
|
|
(equal? (delete-duplicates lst)
|
|
(ref-delete-duplicates lst)))
|
|
(pass-if "non-destructive"
|
|
(equal? lst-copy lst)))))))
|
|
|
|
(with-test-prefix "delete-duplicates!"
|
|
(common-tests delete-duplicates!)
|
|
|
|
(test-lists
|
|
(lambda (lst)
|
|
(pass-if lst
|
|
(equal? (delete-duplicates! lst)
|
|
(ref-delete-duplicates lst)))))))
|
|
|
|
;;
|
|
;; drop
|
|
;;
|
|
|
|
(with-test-prefix "drop"
|
|
|
|
(pass-if "'() 0"
|
|
(null? (drop '() 0)))
|
|
|
|
(pass-if "'(a) 0"
|
|
(let ((lst '(a)))
|
|
(eq? lst
|
|
(drop lst 0))))
|
|
|
|
(pass-if "'(a b) 0"
|
|
(let ((lst '(a b)))
|
|
(eq? lst
|
|
(drop lst 0))))
|
|
|
|
(pass-if "'(a) 1"
|
|
(let ((lst '(a)))
|
|
(eq? (cdr lst)
|
|
(drop lst 1))))
|
|
|
|
(pass-if "'(a b) 1"
|
|
(let ((lst '(a b)))
|
|
(eq? (cdr lst)
|
|
(drop lst 1))))
|
|
|
|
(pass-if "'(a b) 2"
|
|
(let ((lst '(a b)))
|
|
(eq? (cddr lst)
|
|
(drop lst 2))))
|
|
|
|
(pass-if "'(a b c) 1"
|
|
(let ((lst '(a b c)))
|
|
(eq? (cddr lst)
|
|
(drop lst 2))))
|
|
|
|
(pass-if "circular '(a) 0"
|
|
(let ((lst (circular-list 'a)))
|
|
(eq? lst
|
|
(drop lst 0))))
|
|
|
|
(pass-if "circular '(a) 1"
|
|
(let ((lst (circular-list 'a)))
|
|
(eq? lst
|
|
(drop lst 1))))
|
|
|
|
(pass-if "circular '(a) 2"
|
|
(let ((lst (circular-list 'a)))
|
|
(eq? lst
|
|
(drop lst 1))))
|
|
|
|
(pass-if "circular '(a b) 1"
|
|
(let ((lst (circular-list 'a)))
|
|
(eq? (cdr lst)
|
|
(drop lst 0))))
|
|
|
|
(pass-if "circular '(a b) 2"
|
|
(let ((lst (circular-list 'a)))
|
|
(eq? lst
|
|
(drop lst 1))))
|
|
|
|
(pass-if "circular '(a b) 5"
|
|
(let ((lst (circular-list 'a)))
|
|
(eq? (cdr lst)
|
|
(drop lst 5))))
|
|
|
|
(pass-if "'(a . b) 1"
|
|
(eq? 'b
|
|
(drop '(a . b) 1)))
|
|
|
|
(pass-if "'(a b . c) 1"
|
|
(equal? 'c
|
|
(drop '(a b . c) 2))))
|
|
|
|
;;
|
|
;; filter-map
|
|
;;
|
|
|
|
(with-test-prefix "filter-map"
|
|
|
|
(with-test-prefix "one list"
|
|
(pass-if "(1)"
|
|
(equal? '(1) (filter-map noop '(1))))
|
|
|
|
(pass-if "(#f)"
|
|
(equal? '() (filter-map noop '(#f))))
|
|
|
|
(pass-if "(1 2)"
|
|
(equal? '(1 2) (filter-map noop '(1 2))))
|
|
|
|
(pass-if "(#f 2)"
|
|
(equal? '(2) (filter-map noop '(#f 2))))
|
|
|
|
(pass-if "(#f #f)"
|
|
(equal? '() (filter-map noop '(#f #f))))
|
|
|
|
(pass-if "(1 2 3)"
|
|
(equal? '(1 2 3) (filter-map noop '(1 2 3))))
|
|
|
|
(pass-if "(#f 2 3)"
|
|
(equal? '(2 3) (filter-map noop '(#f 2 3))))
|
|
|
|
(pass-if "(1 #f 3)"
|
|
(equal? '(1 3) (filter-map noop '(1 #f 3))))
|
|
|
|
(pass-if "(1 2 #f)"
|
|
(equal? '(1 2) (filter-map noop '(1 2 #f)))))
|
|
|
|
(with-test-prefix "two lists"
|
|
(pass-if "(1 2 3) (4 5 6)"
|
|
(equal? '(1 2 3) (filter-map noop '(1 2 3) '(4 5 6))))
|
|
|
|
(pass-if "(#f 2 3) (4 5)"
|
|
(equal? '(2) (filter-map noop '(#f 2 3) '(4 5))))
|
|
|
|
(pass-if "(4 #f) (1 2 3)"
|
|
(equal? '(4) (filter-map noop '(4 #f) '(1 2 3))))))
|
|
|
|
;;
|
|
;; length+
|
|
;;
|
|
|
|
(with-test-prefix "length+"
|
|
(pass-if-exception "too few args" exception:wrong-num-args
|
|
(length+))
|
|
(pass-if-exception "too many args" exception:wrong-num-args
|
|
(length+ 123 456))
|
|
(pass-if (= 0 (length+ '())))
|
|
(pass-if (= 1 (length+ '(x))))
|
|
(pass-if (= 2 (length+ '(x y))))
|
|
(pass-if (= 3 (length+ '(x y z))))
|
|
(pass-if (not (length+ (circular-list 1))))
|
|
(pass-if (not (length+ (circular-list 1 2))))
|
|
(pass-if (not (length+ (circular-list 1 2 3)))))
|
|
|
|
;;
|
|
;; list-copy
|
|
;;
|
|
|
|
(with-test-prefix "list-copy"
|
|
(pass-if (equal? '() (list-copy '())))
|
|
(pass-if (equal? '(1 2) (list-copy '(1 2))))
|
|
(pass-if (equal? '(1 2 3) (list-copy '(1 2 3))))
|
|
(pass-if (equal? '(1 2 3 4) (list-copy '(1 2 3 4))))
|
|
(pass-if (equal? '(1 2 3 4 5) (list-copy '(1 2 3 4 5))))
|
|
|
|
;; improper lists can be copied
|
|
(pass-if (equal? 1 (list-copy 1)))
|
|
(pass-if (equal? '(1 . 2) (list-copy '(1 . 2))))
|
|
(pass-if (equal? '(1 2 . 3) (list-copy '(1 2 . 3))))
|
|
(pass-if (equal? '(1 2 3 . 4) (list-copy '(1 2 3 . 4))))
|
|
(pass-if (equal? '(1 2 3 4 . 5) (list-copy '(1 2 3 4 . 5)))))
|
|
|
|
;;
|
|
;; take
|
|
;;
|
|
|
|
(with-test-prefix "take"
|
|
|
|
(pass-if "'() 0"
|
|
(null? (take '() 0)))
|
|
|
|
(pass-if "'(a) 0"
|
|
(null? (take '(a) 0)))
|
|
|
|
(pass-if "'(a b) 0"
|
|
(null? (take '() 0)))
|
|
|
|
(pass-if "'(a b c) 0"
|
|
(null? (take '() 0)))
|
|
|
|
(pass-if "'(a) 1"
|
|
(let* ((lst '(a))
|
|
(got (take lst 1)))
|
|
(and (equal? '(a) got)
|
|
(not (eq? lst got)))))
|
|
|
|
(pass-if "'(a b) 1"
|
|
(equal? '(a)
|
|
(take '(a b) 1)))
|
|
|
|
(pass-if "'(a b c) 1"
|
|
(equal? '(a)
|
|
(take '(a b c) 1)))
|
|
|
|
(pass-if "'(a b) 2"
|
|
(let* ((lst '(a b))
|
|
(got (take lst 2)))
|
|
(and (equal? '(a b) got)
|
|
(not (eq? lst got)))))
|
|
|
|
(pass-if "'(a b c) 2"
|
|
(equal? '(a b)
|
|
(take '(a b c) 2)))
|
|
|
|
(pass-if "circular '(a) 0"
|
|
(equal? '()
|
|
(take (circular-list 'a) 0)))
|
|
|
|
(pass-if "circular '(a) 1"
|
|
(equal? '(a)
|
|
(take (circular-list 'a) 1)))
|
|
|
|
(pass-if "circular '(a) 2"
|
|
(equal? '(a a)
|
|
(take (circular-list 'a) 2)))
|
|
|
|
(pass-if "circular '(a b) 5"
|
|
(equal? '(a b a b a)
|
|
(take (circular-list 'a 'b) 5)))
|
|
|
|
(pass-if "'(a . b) 1"
|
|
(equal? '(a)
|
|
(take '(a . b) 1)))
|
|
|
|
(pass-if "'(a b . c) 1"
|
|
(equal? '(a)
|
|
(take '(a b . c) 1)))
|
|
|
|
(pass-if "'(a b . c) 2"
|
|
(equal? '(a b)
|
|
(take '(a b . c) 2))))
|
|
|
|
;;
|
|
;; partition
|
|
;;
|
|
|
|
(define (test-partition pred list kept-good dropped-good)
|
|
(call-with-values (lambda ()
|
|
(partition pred list))
|
|
(lambda (kept dropped)
|
|
(and (equal? kept kept-good)
|
|
(equal? dropped dropped-good)))))
|
|
|
|
(with-test-prefix "partition"
|
|
|
|
(pass-if "with dropped tail"
|
|
(test-partition even? '(1 2 3 4 5 6 7)
|
|
'(2 4 6) '(1 3 5 7)))
|
|
|
|
(pass-if "with kept tail"
|
|
(test-partition even? '(1 2 3 4 5 6)
|
|
'(2 4 6) '(1 3 5)))
|
|
|
|
(pass-if "with everything dropped"
|
|
(test-partition even? '(1 3 5 7)
|
|
'() '(1 3 5 7)))
|
|
|
|
(pass-if "with everything kept"
|
|
(test-partition even? '(2 4 6)
|
|
'(2 4 6) '()))
|
|
|
|
(pass-if "with empty list"
|
|
(test-partition even? '()
|
|
'() '()))
|
|
|
|
(pass-if "with reasonably long list"
|
|
;; the old implementation from SRFI-1 reference implementation
|
|
;; would signal a stack-overflow for a list of only 500 elements!
|
|
(call-with-values (lambda ()
|
|
(partition even?
|
|
(make-list 10000 1)))
|
|
(lambda (even odd)
|
|
(and (= (length odd) 10000)
|
|
(= (length even) 0))))))
|
|
|
|
;;
|
|
;; span
|
|
;;
|
|
|
|
(with-test-prefix "span"
|
|
|
|
(define (test-span lst want-v1 want-v2)
|
|
(call-with-values
|
|
(lambda ()
|
|
(span positive? lst))
|
|
(lambda (got-v1 got-v2)
|
|
(and (equal? got-v1 want-v1)
|
|
(equal? got-v2 want-v2)))))
|
|
|
|
(pass-if "empty"
|
|
(test-span '() '() '()))
|
|
|
|
(pass-if "y"
|
|
(test-span '(1) '(1) '()))
|
|
|
|
(pass-if "n"
|
|
(test-span '(-1) '() '(-1)))
|
|
|
|
(pass-if "yy"
|
|
(test-span '(1 2) '(1 2) '()))
|
|
|
|
(pass-if "ny"
|
|
(test-span '(-1 1) '() '(-1 1)))
|
|
|
|
(pass-if "yn"
|
|
(test-span '(1 -1) '(1) '(-1)))
|
|
|
|
(pass-if "nn"
|
|
(test-span '(-1 -2) '() '(-1 -2)))
|
|
|
|
(pass-if "yyy"
|
|
(test-span '(1 2 3) '(1 2 3) '()))
|
|
|
|
(pass-if "nyy"
|
|
(test-span '(-1 1 2) '() '(-1 1 2)))
|
|
|
|
(pass-if "yny"
|
|
(test-span '(1 -1 2) '(1) '(-1 2)))
|
|
|
|
(pass-if "nny"
|
|
(test-span '(-1 -2 1) '() '(-1 -2 1)))
|
|
|
|
(pass-if "yyn"
|
|
(test-span '(1 2 -1) '(1 2) '(-1)))
|
|
|
|
(pass-if "nyn"
|
|
(test-span '(-1 1 -2) '() '(-1 1 -2)))
|
|
|
|
(pass-if "ynn"
|
|
(test-span '(1 -1 -2) '(1) '(-1 -2)))
|
|
|
|
(pass-if "nnn"
|
|
(test-span '(-1 -2 -3) '() '(-1 -2 -3))))
|