;;;
;;; Time-stamp: <06/01/12 11:45:06 nhw>
;;;
;;; Copyright (C) 2005 by Noel Welsh.
;;;

;;; 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 2.1 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., 59 Temple
;;; Place, Suite 330, Boston, MA 02111-1307 USA

;;; Author: Noel Welsh <noelwelsh@yahoo.com>
;;
;;
;; Commentary:
(module random-test mzscheme
  
  (require (planet "test.ss" ("schematics" "schemeunit.plt" 1 1))
           (planet "macro.ss" ("schematics" "macro.plt" 1 0)))
  
  (require "random.ss")
  
  (provide random-tests)
  
  (define random-tests
    (make-test-suite
     "All tests for random"
     (make-test-case
      "choose/uniform chooses from in range, and all chosen at least once"
      (let-values (((zeros ones twos)
                    (for ((i 0 1000) (zeros 0) (ones 0) (twos 1))
                         (case (choose/uniform #(0 1 2))
                           ((0) (values (add1 zeros) ones twos))
                           ((1) (values zeros (add1 ones) twos))
                           ((2) (values zeros ones (add1 twos)))
                           (else (fail-assertion))))))
        (assert-false (zero? zeros))
        (assert-false (zero? ones))
        (assert-false (zero? twos))))
     ))
  )