;;;; common-list.test --- tests guile's common list functions -*- scheme -*-
;;;; Copyright (C) 2000, 2001, 2004, 2006 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-suite test-common-list)
  #:use-module (test-suite lib)
  #:use-module (ice-9 documentation)
  #:use-module (ice-9 common-list))


;;;
;;; miscellaneous
;;;


(define (documented? object)
  (not (not (object-documentation object))))


;;;
;;; intersection
;;;

(with-test-prefix "intersection"

  (pass-if "documented?" 
    (documented? intersection))

  (pass-if "both arguments empty"
    (eq? (intersection '() '()) '()))

  (pass-if "first argument empty"
    (eq? (intersection '() '(1)) '()))

  (pass-if "second argument empty"
    (eq? (intersection '(1) '()) '()))

  (pass-if "disjoint arguments"
    (eq? (intersection '(1) '(2)) '()))

  (pass-if "equal arguments"
    (equal? (intersection '(1) '(1)) '(1)))

  (pass-if "reverse argument order"
    (equal? (intersection '(1 2 3) '(3 2 1)) '(1 2 3)))

  (pass-if "multiple matches in first list"
    (equal? (intersection '(1 1 2 2 3) '(3 2 1)) '(1 1 2 2 3)))

  (pass-if "multiple matches in second list"
    (equal? (intersection '(1 2 3) '(3 3 2 2 1)) '(1 2 3)))

  (pass-if "mixed arguments"
    (equal? (intersection '(1 2 3 5 7 8 10) '(1 3 4 7 8 9)) '(1 3 7 8)))

  )


;;;
;;; set-difference
;;;

(with-test-prefix "set-difference"

  (pass-if "documented?" 
    (documented? set-difference))

  (pass-if "both arguments empty"
    (eq? (set-difference '() '()) '()))

  (pass-if "first argument empty"
    (eq? (set-difference '() '(1)) '()))

  (pass-if "second argument empty"
    (equal? (set-difference '(1) '()) '(1)))

  (pass-if "disjoint arguments"
    (equal? (set-difference '(1) '(2)) '(1)))

  (pass-if "equal arguments"
    (eq? (set-difference '(1) '(1)) '()))

  (pass-if "reverse argument order"
    (eq? (set-difference '(1 2 3) '(3 2 1)) '()))

  (pass-if "multiple matches in first list"
    (eq? (set-difference '(1 1 2 2 3) '(3 2 1)) '()))

  (pass-if "multiple matches in second list"
    (eq? (set-difference '(1 2 3) '(3 3 2 2 1)) '()))

  (pass-if "mixed arguments"
    (equal? (set-difference '(1 2 3 5 7 8 10) '(1 3 4 7 8 9)) '(2 5 10)))

  )


;;;
;;; remove-if
;;;

(with-test-prefix "remove-if"

  (pass-if "documented?" 
    (documented? remove-if))

  (pass-if "empty list, remove all"
    (eq? (remove-if (lambda (x) #t) '()) '()))

  (pass-if "empty list, remove none"
    (eq? (remove-if (lambda (x) #f) '()) '()))

  (pass-if "non-empty list, remove all"
    (eq? (remove-if (lambda (x) #t) '(1 2 3 4)) '()))

  (pass-if "non-empty list, remove none"
    (equal? (remove-if (lambda (x) #f) '(1 2 3 4)) '(1 2 3 4)))

  (pass-if "non-empty list, remove some"
    (equal? (remove-if odd? '(1 2 3 4)) '(2 4)))

  )


;;;
;;; remove-if-not
;;;


(with-test-prefix "remove-if-not"

  (pass-if "documented?" 
    (documented? remove-if-not))

  (pass-if "empty list, remove all"
    (eq? (remove-if-not (lambda (x) #f) '()) '()))

  (pass-if "empty list, remove none"
    (eq? (remove-if-not (lambda (x) #t) '()) '()))

  (pass-if "non-empty list, remove all"
    (eq? (remove-if-not (lambda (x) #f) '(1 2 3 4)) '()))

  (pass-if "non-empty list, remove none"
    (equal? (remove-if-not (lambda (x) #t) '(1 2 3 4)) '(1 2 3 4)))

  (pass-if "non-empty list, remove some"
    (equal? (remove-if-not odd? '(1 2 3 4)) '(1 3)))

  )


;;;
;;; delete-if!
;;;


(with-test-prefix "delete-if!"

  (pass-if "documented?" 
    (documented? delete-if!))

  (pass-if "empty list, remove all"
    (eq? (delete-if! (lambda (x) #t) '()) '()))

  (pass-if "empty list, remove none"
    (eq? (delete-if! (lambda (x) #f) '()) '()))

  (pass-if "non-empty list, remove all"
    (eq? (delete-if! (lambda (x) #t) '(1 2 3 4)) '()))

  (pass-if "non-empty list, remove none"
    (equal? (delete-if! (lambda (x) #f) '(1 2 3 4)) '(1 2 3 4)))

  (pass-if "non-empty list, remove some"
    (equal? (delete-if! odd? '(1 2 3 4)) '(2 4)))

  )


;;;
;;; delete-if-not!
;;;


(with-test-prefix "delete-if-not!"

  (pass-if "documented?" 
    (documented? delete-if-not!))

  (pass-if "empty list, remove all"
    (eq? (delete-if-not! (lambda (x) #f) '()) '()))

  (pass-if "empty list, remove none"
    (eq? (delete-if-not! (lambda (x) #t) '()) '()))

  (pass-if "non-empty list, remove all"
    (eq? (delete-if-not! (lambda (x) #f) '(1 2 3 4)) '()))

  (pass-if "non-empty list, remove none"
    (equal? (delete-if-not! (lambda (x) #t) '(1 2 3 4)) '(1 2 3 4)))

  (pass-if "non-empty list, remove some"
    (equal? (delete-if-not! odd? '(1 2 3 4)) '(1 3)))

  )