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1733efe236
The current implementation of srfi-11s let-values allows later clauses to access and modify variables bound in earlier clauses when the clause is not a proper list. * module/srfi/srfi-11.scm (let-values): Fix switched variable names. * test-suite/tests/srfi-11.test (let-values): Add test checking that the variable cannot be changed in later clauses.
139 lines
3.3 KiB
Text
139 lines
3.3 KiB
Text
;;;; srfi-11.test --- exercise SRFI-11 let-values
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;;;;
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;;;; Copyright 2004, 2006 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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(define-module (test-suite test-srfi-11)
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#:use-module (test-suite lib)
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#:use-module (srfi srfi-11))
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;;
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;; let-values
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;;
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(with-test-prefix "let-values"
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(with-test-prefix "no exprs"
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(pass-if "no values"
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(let-values ()
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#t)))
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(with-test-prefix "one expr"
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(pass-if "no values"
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(let-values ((() (values)))
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#t))
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(pass-if "one value"
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(let-values (((x) (values 1)))
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(equal? x 1)))
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(pass-if "one value as rest"
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(let-values ((x (values 1)))
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(equal? x '(1))))
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(pass-if "two values"
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(let-values (((x y) (values 1 2)))
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(and (equal? x 1)
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(equal? y 2)))))
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(with-test-prefix "two exprs"
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(pass-if "no values each"
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(let-values ((() (values))
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(() (values)))
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#t))
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(pass-if "one value / no values"
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(let-values (((x) (values 1))
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(() (values)))
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(equal? x 1)))
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(pass-if "one value each"
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(let-values (((x) (values 1))
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((y) (values 2)))
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(and (equal? x 1)
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(equal? y 2))))
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(pass-if-exception "first binding invisible to second expr"
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'(unbound-variable . ".*")
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(let-values (((x) (values 1))
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((y) (values (1+ x))))
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#f))
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(pass-if "first binding with rest invisible to second expr"
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(let* ((a 1)
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(b (let-values (((a . b) (values 2 3))
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(c (begin (set! a 9) 4)))
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(list a b c))))
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(equal? (cons a b) '(9 2 (3) (4)))))))
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;;
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;; let*-values
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;;
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(with-test-prefix "let*-values"
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(with-test-prefix "no exprs"
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(pass-if "no values"
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(let*-values ()
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#t)))
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(with-test-prefix "one expr"
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(pass-if "no values"
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(let*-values ((() (values)))
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#t))
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(pass-if "one value"
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(let*-values (((x) (values 1)))
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(equal? x 1)))
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(pass-if "one value as rest"
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(let-values ((x (values 1)))
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(equal? x '(1))))
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(pass-if "two values"
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(let*-values (((x y) (values 1 2)))
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(and (equal? x 1)
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(equal? y 2)))))
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(with-test-prefix "two exprs"
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(pass-if "no values each"
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(let*-values ((() (values))
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(() (values)))
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#t))
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(pass-if "one value / no values"
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(let*-values (((x) (values 1))
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(() (values)))
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(equal? x 1)))
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(pass-if "one value each"
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(let*-values (((x) (values 1))
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((y) (values 2)))
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(and (equal? x 1)
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(equal? y 2))))
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(pass-if "first binding visible to second expr"
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(let*-values (((x) (values 1))
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((y) (values (1+ x))))
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(and (equal? x 1)
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(equal? y 2))))))
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