plt/counter-test.ss
;;;
;;; Time-stamp: <06/03/11 12:14:49 noel>
;;;
;;; 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 counter-test mzscheme

  (require (lib "plt-match.ss")
           "test.ss")
  (require "counter.ss"
           "monad.ss"
           "hash-monad.ss")

  (provide counter-tests)

  (define a-success (make-test-success "success" #t))
  (define an-error (make-test-error "error" #f))
  (define a-failure (make-test-failure "failure" #f))

  (define counter-tests
    (test-suite
     "All tests for counter"
     (test-case
      "counter->vector is correct"
      (let ((monad ((put-initial-counter) (make-empty-hash))))
        ((compose
          (sequence* (update-counter! a-success)
                     (update-counter! a-failure)
                     (update-counter! an-error)
                     (counter->vector))
          (match-lambda
           ((vector s f e)
            (check = s 1)
            (check = f 1)
            (check = e 1)
            (return-hash (void)))))
         monad)))
     ))
  )