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;;;; srfi-39.test --- -*- scheme -*-
;;;;
;;;; Copyright (C) 2004, 2005, 2006, 2008 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-srfi-39)
#:use-module (test-suite lib)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-39)
#:duplicates (last) ;; avoid warning about srfi-34 replacing `raise'
)
(define a (make-parameter 3))
(define b (make-parameter 4))
(define (check a b a-val b-val)
(and (eqv? (a) a-val)) (eqv? (b) b-val))
(define c (make-parameter 2 (lambda (x) (if (< x 10) x 10))))
(define d (make-parameter 15 (lambda (x) (if (< x 10) x 10))))
(with-test-prefix "SRFI-39"
(pass-if "test 1"
(check a b 3 4))
(pass-if "test 2"
(parameterize ((a 2) (b 1))
(and (check a b 2 1)
(parameterize ((b 8))
(check a b 2 8)))))
(pass-if "test 3"
(check a b 3 4))
(pass-if "test 4"
(check c d 2 10))
(pass-if "test 5"
(parameterize ((a 0) (b 1) (c 98) (d 9))
(and (check a b 0 1)
(check c d 10 9)
(parameterize ((c (a)) (d (b)))
(and (check a b 0 1)
(check c d 0 1))))))
(pass-if "SRFI-34"
(let ((inside? (make-parameter #f)))
(call/cc (lambda (return)
(with-exception-handler
(lambda (c)
;; This handler should be called in the dynamic
;; environment installed by `parameterize'.
(return (inside?)))
(lambda ()
(parameterize ((inside? #t))
(raise 'some-exception)))))))))
(let ()
(define (test-ports param new-port new-port-2)
(let ((old-port (param)))
(pass-if "new value"
(parameterize ((param new-port))
(eq? (param) new-port)))
(pass-if "set value"
(parameterize ((param old-port))
(param new-port)
(eq? (param) new-port)))
(pass-if "old restored"
(parameterize ((param new-port))
#f)
(eq? (param) old-port))
(pass-if "throw exit"
(catch 'bail
(lambda ()
(parameterize ((param new-port))
(throw 'bail)))
(lambda args #f))
(eq? (param) old-port))
(pass-if "call/cc re-enter"
(let ((cont #f)
(count 0)
(port #f)
(good #t))
(parameterize ((param new-port))
(call/cc (lambda (k) (set! cont k)))
(set! count (1+ count))
(set! port (param))
(if (= 1 count) (param new-port-2)))
(set! good (and good (eq? (param) old-port)))
(case count
((1)
(set! good (and good (eq? port new-port)))
;; re-entering should give new-port-2 left there last time
(cont))
((2)
(set! good (and good (eq? port new-port-2)))))
good))
(pass-if "original unchanged"
(eq? (param) old-port))))
(with-test-prefix "current-input-port"
(test-ports current-input-port
(open-input-string "xyz") (open-input-string "xyz")))
(with-test-prefix "current-output-port"
(test-ports current-output-port
(open-output-string) (open-output-string)))
(with-test-prefix "current-error-port"
(test-ports current-error-port
(open-output-string) (open-output-string))))
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