guile/test-suite/tests/vectors.test

;;;; vectors.test --- test suite for Guile's vector functions -*- scheme -*-
;;;;
;;;; Copyright (C) 2003, 2006, 2010, 2011 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 vectors)
  :use-module (test-suite lib))

;; FIXME:  As soon as guile supports immutable vectors, this has to be
;; replaced with the appropriate error type and message.
(define exception:immutable-vector
  (cons 'some-error-type "^trying to modify an immutable vector"))


(with-test-prefix "vector-set!"

  (expect-fail-exception "vector constant"
    exception:immutable-vector
    (vector-set! '#(1 2 3) 0 4)))

(with-test-prefix "vector-copy"

  (pass-if "defaults"
    (equal? #(1 2 3) (vector-copy #(1 2 3))))
  (pass-if "default end"
    (equal? #(2 3) (vector-copy #(1 2 3) 1)))
  (pass-if "start end"
    (equal? #(2) (vector-copy #(1 2 3) 1 2))))

(with-test-prefix "vector->list"

  (pass-if "plain vector"
    (equal? '(1 2 3) (vector->list #(1 2 3))))

  (pass-if "string vector 1"
    (equal? '("abc" "def" "ghi") (vector->list #("abc" "def" "ghi"))))

  (pass-if "string-vector 2"
    (equal? '("abc\u0100" "def\u0101" "ghi\u0102") 
            (vector->list #("abc\u0100" "def\u0101" "ghi\u0102"))))

  (pass-if "shared array"
    (let ((b (make-shared-array #(1) (lambda (x) '(0)) 2)))
      (equal? b (list->vector (vector->list b))))))

(with-test-prefix "make-vector"

  (pass-if "null"
    (equal? #() (make-vector 0)))

  (pass-if "fill with num"
    (equal? #(1 1 1) (make-vector 3 1)))

  (pass-if "fill with string"
    (equal? #("abc" "abc" "abc") (make-vector 3 "abc")))

  (pass-if "fill with string 2"
    (equal? #("ab\u0100" "ab\u0100" "ab\u0100") 
            (make-vector 3 "ab\u0100"))))

(with-test-prefix "vector-move-left!"

  (pass-if-exception "before start" exception:out-of-range
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-left! a 3 5 b -1)))

  (pass-if "beginning"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-left! a 3 5 b 0)
      (equal? b #(4 5 30 40 50 60 70 80 90))))

  (pass-if "middle"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-left! a 3 5 b 2)
      (equal? b #(10 20 4 5 50 60 70 80 90))))

  (pass-if "overlap -"
    (let ((a (vector 1 2 3 4 5 6 7 8 9)))
      (vector-move-left! a 3 5 a 2)
      (equal? a #(1 2 4 5 5 6 7 8 9))))

  (pass-if "overlap +"
    (let ((a (vector 1 2 3 4 5 6 7 8 9)))
      (vector-move-left! a 3 5 a 4)
      (equal? a #(1 2 3 4 4 4 7 8 9))))

  (pass-if "end"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
       (vector-move-left! a 3 5 b 7)
       (equal? b #(10 20 30 40 50 60 70 4 5))))

  (pass-if "whole thing"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
       (vector-move-left! a 0 9 b 0)
       (equal? b #(1 2 3 4 5 6 7 8 9))))

  (pass-if-exception "past end" exception:out-of-range
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-left! a 3 5 b 8))))

(with-test-prefix "vector-move-right!"

  (pass-if-exception "before start" exception:out-of-range
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-right! a 3 5 b -1)))

  (pass-if "beginning"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-right! a 3 5 b 0)
      (equal? b #(4 5 30 40 50 60 70 80 90))))

  (pass-if "middle"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-right! a 3 5 b 2)
      (equal? b #(10 20 4 5 50 60 70 80 90))))

  (pass-if "overlap -"
    (let ((a (vector 1 2 3 4 5 6 7 8 9)))
      (vector-move-right! a 3 5 a 2)
      (equal? a #(1 2 5 5 5 6 7 8 9))))

  (pass-if "overlap +"
    (let ((a (vector 1 2 3 4 5 6 7 8 9)))
      (vector-move-right! a 3 5 a 4)
      (equal? a #(1 2 3 4 4 5 7 8 9))))

  (pass-if "end"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
       (vector-move-right! a 3 5 b 7)
       (equal? b #(10 20 30 40 50 60 70 4 5))))

  (pass-if "whole thing"
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
       (vector-move-right! a 0 9 b 0)
       (equal? b #(1 2 3 4 5 6 7 8 9))))

  (pass-if-exception "past end" exception:out-of-range
    (let ((a (vector 1 2 3 4 5 6 7 8 9))
          (b (vector 10 20 30 40 50 60 70 80 90)))
      (vector-move-right! a 3 5 b 8))))