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guile/test-suite/tests/syntax.test
Dirk Herrmann 4dce3c9645 * tests/syntax.test: Modified some tests to use eval when
providing bad syntax.  Otherwise, the memoizer will report an
	error immediately after reading the form, without even the chance
	to get the pass-if-exception mechanism started.
2003-04-23 19:04:00 +00:00

552 lines
13 KiB
Scheme

;;;; syntax.test --- test suite for Guile's syntactic forms -*- scheme -*-
;;;;
;;;; Copyright (C) 2001 Free Software Foundation, Inc.
;;;;
;;;; This program is free software; you can redistribute it and/or modify
;;;; it under the terms of the GNU General Public License as published by
;;;; the Free Software Foundation; either version 2, or (at your option)
;;;; any later version.
;;;;
;;;; This program 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 General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU General Public License
;;;; along with this software; see the file COPYING. If not, write to
;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
;;;; Boston, MA 02111-1307 USA
(define exception:bad-bindings
(cons 'misc-error "^bad bindings"))
(define exception:duplicate-bindings
(cons 'misc-error "^duplicate bindings"))
(define exception:bad-body
(cons 'misc-error "^bad body"))
(define exception:bad-formals
(cons 'misc-error "^bad formals"))
(define exception:duplicate-formals
(cons 'misc-error "^duplicate formals"))
(define exception:bad-var
(cons 'misc-error "^bad variable"))
(define exception:bad/missing-clauses
(cons 'misc-error "^bad or missing clauses"))
(define exception:missing/extra-expr
(cons 'misc-error "^missing or extra expression"))
(with-test-prefix "expressions"
(with-test-prefix "missing or extra expression"
;; R5RS says:
;; *Note:* In many dialects of Lisp, the empty combination, (),
;; is a legitimate expression. In Scheme, combinations must
;; have at least one subexpression, so () is not a syntactically
;; valid expression.
;; Fixed on 2001-3-3
(pass-if-exception "empty parentheses \"()\""
exception:missing/extra-expr
())))
(with-test-prefix "quote"
#t)
(with-test-prefix "quasiquote"
(with-test-prefix "unquote"
(pass-if "repeated execution"
(let ((foo (let ((i 0)) (lambda () (set! i (+ i 1)) `(,i)))))
(and (equal? (foo) '(1)) (equal? (foo) '(2))))))
(with-test-prefix "unquote-splicing"
(pass-if-exception "extra arguments"
exception:missing/extra-expr
(quasiquote ((unquote-splicing (list 1 2) (list 3 4)))))))
(with-test-prefix "begin"
(pass-if "legal (begin)"
(begin)
#t)
(expect-fail-exception "illegal (begin)"
exception:bad-body
(if #t (begin))
#t))
(with-test-prefix "lambda"
(with-test-prefix "bad formals"
(pass-if-exception "(lambda)"
exception:bad-formals
(lambda))
(pass-if-exception "(lambda . \"foo\")"
exception:bad-formals
(lambda . "foo"))
(pass-if-exception "(lambda \"foo\")"
exception:bad-formals
(lambda "foo"))
(pass-if-exception "(lambda \"foo\" #f)"
exception:bad-formals
(eval '(lambda "foo" #f)
(interaction-environment)))
(pass-if-exception "(lambda (x 1) 2)"
exception:bad-formals
(lambda (x 1) 2))
(pass-if-exception "(lambda (1 x) 2)"
exception:bad-formals
(lambda (1 x) 2))
(pass-if-exception "(lambda (x \"a\") 2)"
exception:bad-formals
(lambda (x "a") 2))
(pass-if-exception "(lambda (\"a\" x) 2)"
exception:bad-formals
(lambda ("a" x) 2)))
(with-test-prefix "duplicate formals"
;; Fixed on 2001-3-3
(pass-if-exception "(lambda (x x) 1)"
exception:duplicate-formals
(lambda (x x) 1))
;; Fixed on 2001-3-3
(pass-if-exception "(lambda (x x x) 1)"
exception:duplicate-formals
(lambda (x x x) 1)))
(with-test-prefix "bad body"
(pass-if-exception "(lambda ())"
exception:bad-body
(lambda ()))))
(with-test-prefix "let"
(with-test-prefix "bindings"
(pass-if-exception "late binding"
exception:unbound-var
(let ((x 1) (y x)) y)))
(with-test-prefix "bad bindings"
(pass-if-exception "(let)"
exception:bad-bindings
(let))
(pass-if-exception "(let 1)"
exception:bad-bindings
(let 1))
(pass-if-exception "(let (x))"
exception:bad-bindings
(let (x)))
;; FIXME: Wouldn't one rather expect a 'bad bindings' error?
;; (Even although the body is bad as well...)
(pass-if-exception "(let ((x)))"
exception:bad-body
(let ((x))))
(pass-if-exception "(let (x) 1)"
exception:bad-bindings
(let (x) 1))
(pass-if-exception "(let ((x)) 3)"
exception:bad-bindings
(let ((x)) 3))
(pass-if-exception "(let ((x 1) y) x)"
exception:bad-bindings
(let ((x 1) y) x))
(pass-if-exception "(let ((1 2)) 3)"
exception:bad-var
(eval '(let ((1 2)) 3)
(interaction-environment))))
(with-test-prefix "duplicate bindings"
(pass-if-exception "(let ((x 1) (x 2)) x)"
exception:duplicate-bindings
(let ((x 1) (x 2)) x)))
(with-test-prefix "bad body"
(pass-if-exception "(let ())"
exception:bad-body
(let ()))
(pass-if-exception "(let ((x 1)))"
exception:bad-body
(let ((x 1))))))
(with-test-prefix "named let"
(with-test-prefix "initializers"
(pass-if "evaluated in outer environment"
(let ((f -))
(eqv? (let f ((n (f 1))) n) -1))))
(with-test-prefix "bad bindings"
(pass-if-exception "(let x (y))"
exception:bad-bindings
(let x (y))))
(with-test-prefix "bad body"
(pass-if-exception "(let x ())"
exception:bad-body
(let x ()))
(pass-if-exception "(let x ((y 1)))"
exception:bad-body
(let x ((y 1))))))
(with-test-prefix "let*"
(with-test-prefix "bindings"
(pass-if "(let* ((x 1) (x 2)) ...)"
(let* ((x 1) (x 2))
(= x 2)))
(pass-if "(let* ((x 1) (x x)) ...)"
(let* ((x 1) (x x))
(= x 1))))
(with-test-prefix "bad bindings"
(pass-if-exception "(let*)"
exception:bad-bindings
(let*))
(pass-if-exception "(let* 1)"
exception:bad-bindings
(let* 1))
(pass-if-exception "(let* (x))"
exception:bad-bindings
(let* (x)))
(pass-if-exception "(let* (x) 1)"
exception:bad-bindings
(let* (x) 1))
(pass-if-exception "(let* ((x)) 3)"
exception:bad-bindings
(let* ((x)) 3))
(pass-if-exception "(let* ((x 1) y) x)"
exception:bad-bindings
(let* ((x 1) y) x))
(pass-if-exception "(let* x ())"
exception:bad-bindings
(eval '(let* x ())
(interaction-environment)))
(pass-if-exception "(let* x (y))"
exception:bad-bindings
(eval '(let* x (y))
(interaction-environment)))
(pass-if-exception "(let* ((1 2)) 3)"
exception:bad-var
(eval '(let* ((1 2)) 3)
(interaction-environment))))
(with-test-prefix "bad body"
(pass-if-exception "(let* ())"
exception:bad-body
(let* ()))
(pass-if-exception "(let* ((x 1)))"
exception:bad-body
(let* ((x 1))))))
(with-test-prefix "letrec"
(with-test-prefix "bindings"
(pass-if-exception "initial bindings are undefined"
exception:unbound-var
(let ((x 1))
(letrec ((x 1) (y x)) y))))
(with-test-prefix "bad bindings"
(pass-if-exception "(letrec)"
exception:bad-bindings
(letrec))
(pass-if-exception "(letrec 1)"
exception:bad-bindings
(letrec 1))
(pass-if-exception "(letrec (x))"
exception:bad-bindings
(letrec (x)))
(pass-if-exception "(letrec (x) 1)"
exception:bad-bindings
(letrec (x) 1))
(pass-if-exception "(letrec ((x)) 3)"
exception:bad-bindings
(letrec ((x)) 3))
(pass-if-exception "(letrec ((x 1) y) x)"
exception:bad-bindings
(letrec ((x 1) y) x))
(pass-if-exception "(letrec x ())"
exception:bad-bindings
(eval '(letrec x ())
(interaction-environment)))
(pass-if-exception "(letrec x (y))"
exception:bad-bindings
(eval '(letrec x (y))
(interaction-environment)))
(pass-if-exception "(letrec ((1 2)) 3)"
exception:bad-var
(eval '(letrec ((1 2)) 3)
(interaction-environment))))
(with-test-prefix "duplicate bindings"
(pass-if-exception "(letrec ((x 1) (x 2)) x)"
exception:duplicate-bindings
(letrec ((x 1) (x 2)) x)))
(with-test-prefix "bad body"
(pass-if-exception "(letrec ())"
exception:bad-body
(letrec ()))
(pass-if-exception "(letrec ((x 1)))"
exception:bad-body
(letrec ((x 1))))))
(with-test-prefix "if"
(with-test-prefix "missing or extra expressions"
(pass-if-exception "(if)"
exception:missing/extra-expr
(eval '(if)
(interaction-environment)))
(pass-if-exception "(if 1 2 3 4)"
exception:missing/extra-expr
(eval '(if 1 2 3 4)
(interaction-environment)))))
(with-test-prefix "cond"
(with-test-prefix "bad or missing clauses"
(pass-if-exception "(cond)"
exception:bad/missing-clauses
(cond))
(pass-if-exception "(cond #t)"
exception:bad/missing-clauses
(cond #t))
(pass-if-exception "(cond 1)"
exception:bad/missing-clauses
(cond 1))
(pass-if-exception "(cond 1 2)"
exception:bad/missing-clauses
(cond 1 2))
(pass-if-exception "(cond 1 2 3)"
exception:bad/missing-clauses
(cond 1 2 3))
(pass-if-exception "(cond 1 2 3 4)"
exception:bad/missing-clauses
(cond 1 2 3 4))
(pass-if-exception "(cond ())"
exception:bad/missing-clauses
(cond ()))
(pass-if-exception "(cond () 1)"
exception:bad/missing-clauses
(cond () 1))
(pass-if-exception "(cond (1) 1)"
exception:bad/missing-clauses
(cond (1) 1))))
(with-test-prefix "cond =>"
(with-test-prefix "else is handled correctly"
(pass-if "else =>"
(let ((=> 'foo))
(eq? (cond (else =>)) 'foo)))
(pass-if "else => identity"
(let* ((=> 'foo))
(eq? (cond (else => identity)) identity))))
(with-test-prefix "bad formals"
(pass-if-exception "=> (lambda (x 1) 2)"
exception:bad-formals
(cond (1 => (lambda (x 1) 2))))))
(with-test-prefix "case"
(with-test-prefix "bad or missing clauses"
(pass-if-exception "(case)"
exception:bad/missing-clauses
(case))
(pass-if-exception "(case . \"foo\")"
exception:bad/missing-clauses
(case . "foo"))
(pass-if-exception "(case 1)"
exception:bad/missing-clauses
(case 1))
(pass-if-exception "(case 1 . \"foo\")"
exception:bad/missing-clauses
(case 1 . "foo"))
(pass-if-exception "(case 1 \"foo\")"
exception:bad/missing-clauses
(case 1 "foo"))
(pass-if-exception "(case 1 ())"
exception:bad/missing-clauses
(case 1 ()))
(pass-if-exception "(case 1 (\"foo\"))"
exception:bad/missing-clauses
(case 1 ("foo")))
(pass-if-exception "(case 1 (\"foo\" \"bar\"))"
exception:bad/missing-clauses
(case 1 ("foo" "bar")))
;; According to R5RS, the following one is syntactically correct.
;; (pass-if-exception "(case 1 (() \"bar\"))"
;; exception:bad/missing-clauses
;; (case 1 (() "bar")))
(pass-if-exception "(case 1 ((2) \"bar\") . \"foo\")"
exception:bad/missing-clauses
(case 1 ((2) "bar") . "foo"))
(pass-if-exception "(case 1 (else #f) ((1) #t))"
exception:bad/missing-clauses
(case 1 ((2) "bar") (else)))
(pass-if-exception "(case 1 (else #f) . \"foo\")"
exception:bad/missing-clauses
(case 1 (else #f) . "foo"))
(pass-if-exception "(case 1 (else #f) ((1) #t))"
exception:bad/missing-clauses
(case 1 (else #f) ((1) #t)))))
(with-test-prefix "define"
(with-test-prefix "currying"
(pass-if "(define ((foo)) #f)"
(define ((foo)) #t)
((foo))))
(with-test-prefix "missing or extra expressions"
(pass-if-exception "(define)"
exception:missing/extra-expr
(define))))
(with-test-prefix "set!"
(with-test-prefix "missing or extra expressions"
(pass-if-exception "(set!)"
exception:missing/extra-expr
(eval '(set!)
(interaction-environment)))
(pass-if-exception "(set! 1)"
exception:missing/extra-expr
(eval '(set! 1)
(interaction-environment)))
(pass-if-exception "(set! 1 2 3)"
exception:missing/extra-expr
(eval '(set! 1 2 3)
(interaction-environment))))
(with-test-prefix "bad variable"
(pass-if-exception "(set! \"\" #t)"
exception:bad-var
(eval '(set! "" #t)
(interaction-environment)))
(pass-if-exception "(set! 1 #t)"
exception:bad-var
(eval '(set! 1 #t)
(interaction-environment)))
(pass-if-exception "(set! #t #f)"
exception:bad-var
(eval '(set! #t #f)
(interaction-environment)))
(pass-if-exception "(set! #f #t)"
exception:bad-var
(eval '(set! #f #t)
(interaction-environment)))
(pass-if-exception "(set! #\space #f)"
exception:bad-var
(eval '(set! #\space #f)
(interaction-environment)))))
(with-test-prefix "quote"
(with-test-prefix "missing or extra expression"
(pass-if-exception "(quote)"
exception:missing/extra-expr
(eval '(quote)
(interaction-environment)))
(pass-if-exception "(quote a b)"
exception:missing/extra-expr
(eval '(quote a b)
(interaction-environment)))))