test-suite/tests/elisp.test

   1 ;;;; elisp.test --- tests guile's elisp support     -*- scheme -*-
   2 ;;;; Copyright (C) 2002, 2003, 2006, 2009, 2010 Free Software Foundation, Inc.
   3 ;;;;
   4 ;;;; This library is free software; you can redistribute it and/or
   5 ;;;; modify it under the terms of the GNU Lesser General Public
   6 ;;;; License as published by the Free Software Foundation; either
   7 ;;;; version 3 of the License, or (at your option) any later version.
   8 ;;;;
   9 ;;;; This library is distributed in the hope that it will be useful,
  10 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 ;;;; Lesser General Public License for more details.
  13 ;;;;
  14 ;;;; You should have received a copy of the GNU Lesser General Public
  15 ;;;; License along with this library; if not, write to the Free Software
  16 ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17
  18 (define-module (test-suite test-elisp)
  19   #:use-module (test-suite lib)
  20   #:use-module (system base compile)
  21   #:use-module (ice-9 weak-vector))
  22
  23 (with-test-prefix "scheme"
  24
  25   (with-test-prefix "nil value is a boolean"
  26
  27     (pass-if "boolean?"
  28       (boolean? #nil)))
  29
  30
  31   (with-test-prefix "nil value is false"
  32
  33     (pass-if "not"
  34       (eq? (not #nil) #t))
  35
  36     (pass-if "if"
  37       (if #nil #f #t))
  38
  39     (pass-if "and"
  40       (eq? (and #nil #t) #f))
  41
  42     (pass-if "or"
  43       (eq? (or #nil #f) #f))
  44
  45     (pass-if "cond"
  46       (cond (#nil #f) (else #t)))
  47
  48     (pass-if "do"
  49       (call-with-current-continuation
  50        (lambda (exit)
  51          (do ((i 0 (+ i 1)))
  52              (#nil (exit #f))
  53            (if (> i 10)
  54                (exit #t)))))))
  55
  56
  57   (with-test-prefix "nil value as an empty list"
  58
  59     (pass-if "list?"
  60       (list? #nil))
  61
  62     (pass-if "null?"
  63       (null? #nil))
  64
  65     (pass-if "sort"
  66       (eq? (sort #nil <) #nil)))
  67
  68
  69   (with-test-prefix "lists formed using nil value"
  70
  71     (pass-if "list?"
  72       (list? (cons 'a #nil)))
  73
  74     (pass-if "length of #nil"
  75       (= (length #nil) 0))
  76
  77     (pass-if "length"
  78       (= (length (cons 'a (cons 'b (cons 'c #nil)))) 3))
  79
  80     (pass-if "length (with backquoted list)"
  81       (= (length '(a b c . #nil)) 3))
  82
  83     (pass-if "write (#nil)"
  84       (string=? (with-output-to-string
  85                   (lambda () (write #nil)))
  86                 "#nil"))                ; Hmmm... should be "()" ?
  87
  88     (pass-if "display (#nil)"
  89       (string=? (with-output-to-string
  90                   (lambda () (display #nil)))
  91                 "#nil"))                ; Ditto.
  92
  93     (pass-if "write (list)"
  94       (string=? (with-output-to-string
  95                   (lambda () (write (cons 'a #nil))))
  96                 "(a)"))
  97
  98     (pass-if "display (list)"
  99       (string=? (with-output-to-string
 100                   (lambda () (display (cons 'a #nil))))
 101                 "(a)"))
 102
 103     (pass-if "assq"
 104       (and (equal? (assq 1 '((1 one) (2 two) . #nil))
 105                    '(1 one))
 106            (equal? (assq 3 '((1 one) (2 two) . #nil))
 107                    #f)))
 108
 109     (pass-if "assv"
 110       (and (equal? (assv 1 '((1 one) (2 two) . #nil))
 111                    '(1 one))
 112            (equal? (assv 3 '((1 one) (2 two) . #nil))
 113                    #f)))
 114
 115     (pass-if "assoc"
 116       (and (equal? (assoc 1 '((1 one) (2 two) . #nil))
 117                    '(1 one))
 118            (equal? (assoc 3 '((1 one) (2 two) . #nil))
 119                    #f)))
 120
 121     (pass-if "with-fluids*"
 122       (let ((f (make-fluid))
 123             (g (make-fluid)))
 124         (with-fluids* (cons f (cons g #nil))
 125                       '(3 4)
 126                       (lambda ()
 127                         (and (eqv? (fluid-ref f) 3)
 128                              (eqv? (fluid-ref g) 4))))))
 129
 130     (pass-if "append!"
 131       (let ((a (copy-tree '(1 2 3)))
 132             (b (copy-tree '(4 5 6 . #nil)))
 133             (c (copy-tree '(7 8 9)))
 134             (d (copy-tree '(a b c . #nil))))
 135         (equal? (append! a b c d)
 136                 '(1 2 3 4 5 6 7 8 9 a b c . #nil))))
 137
 138     (pass-if "last-pair"
 139       (equal? (last-pair '(1 2 3 4 5 . #nil))
 140               (cons 5 #nil)))
 141
 142     (pass-if "reverse"
 143       (equal? (reverse '(1 2 3 4 5 . #nil))
 144               '(5 4 3 2 1)))            ; Hmmm... is this OK, or
 145                                         ; should it be
 146                                         ; '(5 4 3 2 1 . #nil) ?
 147
 148     (pass-if "reverse!"
 149       (equal? (reverse! (copy-tree '(1 2 3 4 5 . #nil)))
 150               '(5 4 3 2 1)))            ; Ditto.
 151
 152     (pass-if "list-ref"
 153       (eqv? (list-ref '(0 1 2 3 4 . #nil) 4) 4))
 154
 155     (pass-if-exception "list-ref"
 156                        exception:out-of-range
 157                        (eqv? (list-ref '(0 1 2 3 4 . #nil) 6) 6))
 158
 159     (pass-if "list-set!"
 160       (let ((l (copy-tree '(0 1 2 3 4 . #nil))))
 161         (list-set! l 4 44)
 162         (= (list-ref l 4) 44)))
 163
 164     (pass-if-exception "list-set!"
 165                        exception:out-of-range
 166                        (let ((l (copy-tree '(0 1 2 3 4 . #nil))))
 167                          (list-set! l 6 44)
 168                          (= (list-ref l 6) 44)))
 169
 170     (pass-if "list-cdr-set!"
 171       (let ((l (copy-tree '(0 1 2 3 4 . #nil))))
 172         (and (begin
 173                (list-cdr-set! l 4 44)
 174                (equal? l '(0 1 2 3 4 . 44)))
 175              (begin
 176                (list-cdr-set! l 3 '(new . #nil))
 177                (equal? l '(0 1 2 3 new . #nil))))))
 178
 179     (pass-if-exception "list-cdr-set!"
 180                        exception:out-of-range
 181                        (let ((l (copy-tree '(0 1 2 3 4 . #nil))))
 182                          (list-cdr-set! l 6 44)))
 183
 184     (pass-if "memq"
 185       (equal? (memq 'c '(a b c d . #nil)) '(c d . #nil)))
 186
 187     (pass-if "memv"
 188       (equal? (memv 'c '(a b c d . #nil)) '(c d . #nil)))
 189
 190     (pass-if "member"
 191       (equal? (member "c" '("a" "b" "c" "d" . #nil)) '("c" "d" . #nil)))
 192
 193     (pass-if "list->vector"
 194       (equal? '#(1 2 3) (list->vector '(1 2 3 . #nil))))
 195
 196     (pass-if "list->vector"
 197       (equal? '#(1 2 3) (list->vector '(1 2 3 . #nil))))
 198
 199     (pass-if "list->weak-vector"
 200       (equal? (weak-vector 1 2 3) (list->weak-vector '(1 2 3 . #nil))))
 201
 202     (pass-if "sorted?"
 203       (and (sorted? '(1 2 3 . #nil) <)
 204            (not (sorted? '(1 6 3 . #nil) <))))
 205
 206     (pass-if "merge"
 207       (equal? (merge '(1 4 7 10)
 208                      (merge '(2 5 8 11 . #nil)
 209                             '(3 6 9 12 . #nil)
 210                             <)
 211                      <)
 212               '(1 2 3 4 5 6 7 8 9 10 11 12 . #nil)))
 213
 214     (pass-if "merge!"
 215       (equal? (merge! (copy-tree '(1 4 7 10))
 216                       (merge! (copy-tree '(2 5 8 11 . #nil))
 217                               (copy-tree '(3 6 9 12 . #nil))
 218                               <)
 219                       <)
 220               '(1 2 3 4 5 6 7 8 9 10 11 12 . #nil)))
 221
 222     (pass-if "sort"
 223       (equal? (sort '(1 5 3 8 4 . #nil) <) '(1 3 4 5 8)))
 224
 225     (pass-if "stable-sort"
 226       (equal? (stable-sort '(1 5 3 8 4 . #nil) <) '(1 3 4 5 8)))
 227
 228     (pass-if "sort!"
 229       (equal? (sort! (copy-tree '(1 5 3 8 4 . #nil)) <)
 230               '(1 3 4 5 8)))
 231
 232     (pass-if "stable-sort!"
 233       (equal? (stable-sort! (copy-tree '(1 5 3 8 4 . #nil)) <)
 234               '(1 3 4 5 8))))
 235
 236
 237   (with-test-prefix "value preservation"
 238
 239     (pass-if "car"
 240       (eq? (car (cons #nil 'a)) #nil))
 241
 242     (pass-if "cdr"
 243       (eq? (cdr (cons 'a #nil)) #nil))
 244
 245     (pass-if "vector-ref"
 246       (eq? (vector-ref (vector #nil) 0) #nil))))
 247
 248
 249 ;;;
 250 ;;; elisp
 251 ;;;
 252
 253 (with-test-prefix "elisp"
 254
 255   (define (elisp-pass-if expr expected)
 256     (pass-if (with-output-to-string
 257                (lambda ()
 258                  (write expr)))
 259       (let ((calc (with-output-to-string
 260                     (lambda ()
 261                       (write (compile expr #:from 'elisp #:to 'value))))))
 262         (string=? calc expected))))
 263
 264   (define (elisp-pass-if/maybe-error key expr expected)
 265     (pass-if (with-output-to-string (lambda () (write expr)))
 266       (string=?
 267        (catch key
 268          (lambda ()
 269            (with-output-to-string
 270              (lambda () (write (eval-elisp expr)))))
 271          (lambda (k . args)
 272            (format (current-error-port)
 273                    "warning: caught ~a: ~a\n" k args)
 274            (throw 'unresolved)))
 275        expected)))
 276
 277   (elisp-pass-if '(and #f) "#f")
 278   (elisp-pass-if '(and #t) "#t")
 279   (elisp-pass-if '(and nil) "#nil")
 280   (elisp-pass-if '(and t) "#t")
 281   (elisp-pass-if '(and) "#t")
 282   (elisp-pass-if '(cond (nil t) (t 3)) "3")
 283   (elisp-pass-if '(cond (nil t) (t)) "#t")
 284   (elisp-pass-if '(cond (nil)) "#nil")
 285   (elisp-pass-if '(cond) "#nil")
 286   (elisp-pass-if '(if #f 'a 'b) "b")
 287   (elisp-pass-if '(if #t 'a 'b) "a")
 288   (elisp-pass-if '(if nil 'a 'b) "b")
 289   (elisp-pass-if '(if nil 1 2 3 4) "4")
 290   (elisp-pass-if '(if nil 1 2) "2")
 291   (elisp-pass-if '(if nil 1) "#nil")
 292   (elisp-pass-if '(if t 1 2) "1")
 293   (elisp-pass-if '(if t 1) "1")
 294   (elisp-pass-if '(let (a) a) "#nil")
 295   (elisp-pass-if '(let* (a) a) "#nil")
 296   (elisp-pass-if '(let* ((a 1) (b (* a 2))) b) "2")
 297   (elisp-pass-if '(null nil) "#t")
 298   (elisp-pass-if '(or 1 2 3) "1")
 299   (elisp-pass-if '(or nil t nil) "#t")
 300   (elisp-pass-if '(or nil) "#nil")
 301   (elisp-pass-if '(or t nil t) "#t")
 302   (elisp-pass-if '(or t) "#t")
 303   (elisp-pass-if '(or) "#nil")
 304   (elisp-pass-if '(prog1 1 2 3) "1")
 305   (elisp-pass-if '(prog2 1 2 3) "2")
 306   (elisp-pass-if '(progn 1 2 3) "3")
 307   (elisp-pass-if '(while nil 1) "#nil")
 308
 309   (elisp-pass-if '(defun testf (x y &optional o &rest r) (list x y o r)) "testf")
 310   (elisp-pass-if '(testf 1 2) "(1 2 #nil #nil)")
 311   (elisp-pass-if '(testf 1 2 3 4 5 56) "(1 2 3 (4 5 56))")
 312   ;; NB `lambda' in Emacs is self-quoting, but that's only after
 313   ;; loading the macro definition of lambda in subr.el.
 314   (elisp-pass-if '(funcall (lambda (x y &optional o &rest r) (list x y o r)) 1 2 3 4) "(1 2 3 (4))")
 315
 316   (elisp-pass-if '(apply (lambda (x y &optional o &rest r) (list x y o r)) 1 2 3 nil)
 317                  "(1 2 3 #nil)")
 318
 319   (elisp-pass-if '(setq x 3) "3")
 320   (elisp-pass-if '(defvar x 4) "x")
 321   (elisp-pass-if 'x "3")
 322
 323   ;; wingo 9 april 2010: the following 10 tests are currently failing. the if &
 324   ;; null tests are good, but I think some of the memq tests are bogus, given
 325   ;; our current thoughts on equalty and nil; though they should succeed with
 326   ;; memv and member in the elisp case. Also I think the function test is bogus.
 327   #;
 328   (elisp-pass-if '(if '() 'a 'b) "b")
 329   #;
 330   (elisp-pass-if '(null '#f) "#t")
 331   #;
 332   (elisp-pass-if '(null '()) "#t")
 333   #;
 334   (elisp-pass-if '(null 'nil) "#t")
 335   #;
 336   (elisp-pass-if '(memq '() '(())) "(())")
 337   #;
 338   (elisp-pass-if '(memq '() '(nil)) "(#nil)")
 339   #;
 340   (elisp-pass-if '(memq '() '(t)) "#nil")
 341   #;
 342   (elisp-pass-if '(memq nil '(())) "(())")
 343   #;
 344   (elisp-pass-if '(memq nil '(nil)) "(#nil)")
 345   #;
 346   (elisp-pass-if '(memq nil (list nil)) "(#nil)")
 347   #;
 348   (elisp-pass-if '(function (lambda (x y &optional o &rest r) (list x y o r))) "(lambda (x y &optional o &rest r) (list x y o r))")
 349   )
 350
 351
 352 ;;; elisp.test ends here