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;; Filename : test-eval.scm
;; About : unit test for evaluation
;;
;; Copyright (C) 2005-2006 Kazuki Ohta <mover AT hct.zaq.ne.jp>
;; Copyright (c) 2007-2008 SigScheme Project <uim-en AT googlegroups.com>
;;
;; All rights reserved.
;;
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following conditions
;; are met:
;;
;; 1. Redistributions of source code must retain the above copyright
;; notice, this list of conditions and the following disclaimer.
;; 2. Redistributions in binary form must reproduce the above copyright
;; notice, this list of conditions and the following disclaimer in the
;; documentation and/or other materials provided with the distribution.
;; 3. Neither the name of authors nor the names of its contributors
;; may be used to endorse or promote products derived from this software
;; without specific prior written permission.
;;
;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
;; IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
;; THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
;; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
;; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
;; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
;; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
;; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
(require-extension (unittest))
(define tn test-name)
(tn "eval")
(assert-equal? (tn) 3 (eval '(+ 1 2)
(interaction-environment)))
(assert-equal? (tn) 3 (eval '((lambda (x y) (+ x y)) 1 2)
(interaction-environment)))
(tn "eval with invalid environment specifiers")
(assert-error (tn) (lambda ()
(eval '(+ 1 2) 3)))
(assert-error (tn) (lambda ()
(eval '(+ 1 2) 'symbol)))
(assert-error (tn) (lambda ()
(eval '(+ 1 2) "string")))
(assert-error (tn) (lambda ()
(eval '(+ 1 2) #\a)))
;; R5RS: 4.1.3 Procedure calls
;; > Procedure calls may return any number of values (see values in section see
;; > section 6.4 Control features). With the exception of `values' the
;; > procedures available in the initial environment return one value or, for
;; > procedures such as `apply', pass on the values returned by a call to one
;; > of their arguments.
;; SigScheme apply this specification for 'eval' also. -- YamaKen 2006-09-02
(tn "eval that returns multiple values")
(call-with-values
(lambda ()
(eval '(values 1 2 3)
(interaction-environment)))
(lambda vals
(assert-equal? (tn) '(1 2 3) vals)))
(call-with-values
(lambda ()
(eval '(apply values '(1 2 3))
(interaction-environment)))
(lambda vals
(assert-equal? (tn) '(1 2 3) vals)))
(tn "scheme-report-environment")
(if (provided? "sigscheme")
(begin
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(scheme-report-environment 4))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(scheme-report-environment 6))))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(scheme-report-environment 'symbol))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(scheme-report-environment "string"))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(scheme-report-environment #\a))))
(assert-equal? (tn) 3 (eval '(+ 1 2)
(scheme-report-environment 5)))
;; R5RS: 6.5 Eval
;; `eval' is not allowed to create new bindings in the environments associated
;; with `null-environment' or `scheme-report-environment'.
;; FIXME: SigScheme does not support this yet.
(if (and #f (provided? "sigscheme"))
(begin
(assert-error (tn) (lambda ()
;; Although other implementations evaluate this
;; expression without error (with or without 'foo'
;; defined), SigScheme will adopt this behavior.
(eval '(define foo 1)
(scheme-report-environment 5))))
(assert-error (tn) (lambda ()
(eval 'use
(scheme-report-environment 5))))))
(tn "null-environment")
(if (and #f (provided? "sigscheme"))
(begin
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(null-environment 4))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(null-environment 6))))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(null-environment 'symbol))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(null-environment "string"))))
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
(null-environment #\a))))
(assert-equal? (tn) 3 (eval '(+ 1 2)
(null-environment 5)))
;; R5RS: 6.5 Eval
;; `eval' is not allowed to create new bindings in the environments associated
;; with `null-environment' or `scheme-report-environment'.
;; FIXME: SigScheme does not support this yet.
(if (and #f (provided? "sigscheme"))
(begin
(assert-error (tn) (lambda ()
;; Although other implementations evaluate this
;; expression without error (with or without 'foo'
;; defined), SigScheme will adopt this behavior.
(eval '(define foo 1)
(null-environment 5))))
(assert-error (tn) (lambda ()
(eval 'use
(null-environment 5))))
(assert-error (tn) (lambda ()
(eval 'procedure?
(null-environment 5))))))
(if (provided? "sigscheme")
(begin
(tn "eval with handmade env")
;; single frame
(assert-equal? (tn) 10 (eval '(+ x y)
'(((x y) . (4 6)))))
;; 2 frames
(assert-equal? (tn) 15 (eval '(+ x y z)
'(((x y) . (4 6))
((z) . (5)))))
;; 3 frames
(assert-equal? (tn) 14 (eval '(+ x y z v w)
'(((x y) . (4 6))
((v w) . (0 -1))
((z) . (5)))))
;; dotted arg as formals
(assert-equal? (tn) 44 (eval '(apply + lst)
'(((x y . lst) . (4 6 8 10 12 14))
((z) . (5)))))
;; symbol as formals
(assert-equal? (tn) 54 (eval '(apply + lst)
'((lst . (4 6 8 10 12 14))
((z) . (5)))))
(tn "eval with invalid handmade env")
;; improper frame list
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x y) . (4 6))
. #t))))
;; actuals shortage
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x y z) . (4 6))))))
;; actuals shortage #2
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x y . z) . (4))))))
;; superfluous actuals
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x y) . (4 6 8))))))
;; dotted actuals
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x y) . (4 . 6))))))
;; dotted actuals #2
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x y) . (4 6 . 8))))))
;; dotted actuals #3
;; This pattern has been allowd when let-optionals* is introduced.
(assert-equal? (tn)
'(4 (6 . 8))
(eval '(list x y)
'(((x . y) . (4 6 . 8)))))
;; not a symbol in formals
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x 3) . (4 6))))))
;; not a list as actuals
(assert-error (tn) (lambda ()
(eval '(+ 1 2)
'(((x) . 4)
((y) . 6)))))
;; not a list as both formals and actuals
;; This pattern has been allowd when let-optionals* is introduced.
(assert-equal? (tn)
'(4 6)
(eval '(list x y)
'((x . 4)
(y . 6))))))
(total-report)
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