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;;;; -*- scheme -*-
;;;; fluids.test --- test suite for fluid values
;;;;
;;;; Copyright (C) 2010 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-fluids)
:use-module (test-suite lib))
(define a (make-fluid))
(define b (make-fluid))
(define c #f)
(with-test-prefix "initial fluid values"
(pass-if "fluid-ref uninitialized fluid is #f"
(not (fluid-ref a))))
(with-test-prefix "with-fluids with non-fluid"
(pass-if-exception "exception raised if nonfluid passed to with-fluids"
exception:wrong-type-arg
(with-fluids ((c #t))
c))
(pass-if "fluids not modified if nonfluid passed to with-fluids"
(catch 'wrong-type-arg
(lambda ()
(with-fluids ((a #t)
(c #t))
#f))
(lambda _
(not (fluid-ref a))))))
(with-test-prefix "with-fluids with duplicate fluid"
(pass-if "last value wins"
(with-fluids ((a 1)
(a 2))
(eqv? (fluid-ref a) 2)))
(pass-if "original value restored"
(and (with-fluids ((a 1)
(a 2))
(eqv? (fluid-ref a) 2))
(eqv? (fluid-ref a) #f))))
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