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* module/ice-9/boot-9.scm (<parameter>, make-parameter, parameter?) (parameter-fluid, parameter-converter, parameterize): New top-level bindings, implementing SRFI-39 parameters. Currently, current-input-port and similar procedures are not yet parameters. * test-suite/Makefile.am: * test-suite/tests/parameters.test: Add tests, taken from srfi-39 tests.
69 lines
2.2 KiB
Scheme
69 lines
2.2 KiB
Scheme
;;;; srfi-39.test --- -*- scheme -*-
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;;;;
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;;;; Copyright (C) 2004, 2005, 2006, 2008, 2011 Free Software Foundation, Inc.
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;;;;
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of the License, or (at your option) any later version.
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;;;;
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;;;; This library is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; Lesser General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU Lesser General Public
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;; Testing the parameters implementation in boot-9.
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;;
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(define-module (test-parameters)
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#:use-module (srfi srfi-34)
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#:use-module (test-suite lib))
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(define a (make-parameter 3))
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(define b (make-parameter 4))
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(define (check a b a-val b-val)
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(and (eqv? (a) a-val)) (eqv? (b) b-val))
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(define c (make-parameter 2 (lambda (x) (if (< x 10) x 10))))
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(define d (make-parameter 15 (lambda (x) (if (< x 10) x 10))))
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(with-test-prefix "parameters"
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(pass-if "test 1"
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(check a b 3 4))
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(pass-if "test 2"
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(parameterize ((a 2) (b 1))
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(and (check a b 2 1)
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(parameterize ((b 8))
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(check a b 2 8)))))
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(pass-if "test 3"
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(check a b 3 4))
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(pass-if "test 4"
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(check c d 2 10))
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(pass-if "test 5"
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(parameterize ((a 0) (b 1) (c 98) (d 9))
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(and (check a b 0 1)
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(check c d 10 9)
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(parameterize ((c (a)) (d (b)))
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(and (check a b 0 1)
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(check c d 0 1))))))
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(pass-if "SRFI-34"
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(let ((inside? (make-parameter #f)))
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(call/cc (lambda (return)
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(with-exception-handler
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(lambda (c)
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;; This handler should be called in the dynamic
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;; environment installed by `parameterize'.
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(return (inside?)))
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(lambda ()
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(parameterize ((inside? #t))
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(raise 'some-exception)))))))))
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