tests/print.impure.lisp

   1 ;;;; miscellaneous tests of printing stuff
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 ;;; We should be able to output X readably (at least when *READ-EVAL*).
  15 (defun assert-readable-output (x)
  16   (assert (eql x
  17                (let ((*read-eval* t))
  18                  (read-from-string (with-output-to-string (s)
  19                                      (write x :stream s :readably t)))))))
  20
  21 ;;; Even when *READ-EVAL* is NIL, we should be able to output some
  22 ;;; (not necessarily readable) representation without signalling an
  23 ;;; error.
  24 (defun assert-unreadable-output (x)
  25   (let ((*read-eval* nil))
  26     (with-output-to-string (s) (write x :stream s :readably nil))))
  27
  28 (defun assert-output (x)
  29   (assert-readable-output x)
  30   (assert-unreadable-output x))
  31
  32 ;;; Ensure that we don't print a value cell as #S(RANDOM-CLASS ...)
  33 (defun f (x) (lambda (y) (+ (incf x) y)))
  34 (compile 'f)
  35 (with-test (:name :output-value-cell)
  36   (assert (search "#<value-cell"
  37                   (write-to-string (sb-kernel:%closure-index-ref (f 3) 0)))))
  38
  39 ;;; Nathan Froyd reported that sbcl-0.6.11.34 screwed up output of
  40 ;;; floating point infinities.
  41 (with-test (:name (write float :infinities))
  42   (dolist (x (list short-float-positive-infinity short-float-negative-infinity
  43                    single-float-positive-infinity single-float-negative-infinity
  44                    double-float-positive-infinity double-float-negative-infinity
  45                    long-float-positive-infinity long-float-negative-infinity))
  46     (assert-output x)))
  47
  48 ;;; Eric Marsden reported that this would blow up in CMU CL (even
  49 ;;; though ANSI says that the mismatch between ~F expected type and
  50 ;;; provided string type is supposed to be handled without signalling
  51 ;;; an error) and provided a fix which was ported to sbcl-0.6.12.35.
  52 (with-test (:name (format :fixed-format-floating-point-directive :type-mismatch))
  53   (let ((*standard-output* (make-broadcast-stream)))
  54     (assert (null (format t "~F" "foo")))))
  55
  56 ;;; This was a bug in SBCL until 0.6.12.40 (originally reported as a
  57 ;;; CMU CL bug by Erik Naggum on comp.lang.lisp).
  58 (with-test (:name (format bit-vector *print-base* *print-radix*))
  59   (loop for base from 2 to 36
  60      with *print-radix* = t
  61      do (let ((*print-base* base))
  62           (assert (string= "#*101" (format nil "~S" #*101))))))
  63
  64 ;;; bug in sbcl-0.7.1.25, reported by DB sbcl-devel 2002-02-25
  65 (with-test (:name (format :decimal-directive :type-mismatch))
  66   (assert (string= "0.5" (format nil "~2D" 0.5))))
  67
  68 ;;; we want malformed format strings to cause errors rather than have
  69 ;;; some DWIM "functionality".
  70 (with-test (:name (format :tabulate-directive :malformed))
  71   (multiple-value-bind (fun failure-p warnings)
  72       (checked-compile `(lambda () (format nil "~:2T"))
  73                        :allow-failure t :allow-warnings t)
  74     (assert failure-p)
  75     (assert (= 1 (length warnings)))
  76     (assert-error (funcall fun))))
  77
  78 ;;; bug reported, with fix, by Robert Strandh, sbcl-devel 2002-03-09,
  79 ;;; fixed in sbcl-0.7.1.36:
  80 (with-test (:name (format :monetary-floating-point-directive 1))
  81   (assert (string= (format nil "~2,3,8,'0$" 1234567.3d0) "1234567.30")))
  82
  83 ;;; checks that other FORMAT-DOLLAR output remains sane after the
  84 ;;; 0.7.1.36 change
  85 (with-test (:name (format :monetary-floating-point-directive 2))
  86   (assert (string= (format nil "~$" 0) "0.00"))
  87   (assert (string= (format nil "~$" 4) "4.00"))
  88   (assert (string= (format nil "~$" -4.0) "-4.00"))
  89   (assert (string= (format nil "~2,7,11$" -4.0) "-0000004.00"))
  90   (assert (string= (format nil "~2,7,11,' $" 1.1) " 0000001.10"))
  91   (assert (string= (format nil "~1,7,11,' $" 1.1) "  0000001.1"))
  92   (assert (string= (format nil "~1,3,8,' $" 7.3) "   007.3"))
  93   (assert (string= (format nil "~2,3,8,'0$" 7.3) "00007.30")))
  94
  95 ;;; Check for symbol lookup in ~/ / directive -- double-colon was
  96 ;;; broken in 0.7.1.36 and earlier
  97 (defun print-foo (stream arg colonp atsignp &rest params)
  98   (declare (ignore colonp atsignp params))
  99   (format stream "~d" arg))
 100
 101 (with-test (:name (format :call-function-directive :smoke))
 102   (assert (string= (format nil "~/print-foo/" 2) "2"))
 103   (assert (string= (format nil "~/cl-user:print-foo/" 2) "2"))
 104   (assert (string= (format nil "~/cl-user::print-foo/" 2) "2")))
 105
 106 (with-test (:name (format :call-function-directive :syntax-errors))
 107   (flet ((test (args)
 108            (multiple-value-bind (fun failure-p)
 109                (checked-compile `(lambda (format nil ,@args))
 110                                 :allow-failure t)
 111              (assert failure-p)
 112              (assert-error (funcall fun)))))
 113     (test '("~/cl-user:::print-foo/" 2))
 114     (test '("~/cl-user:a:print-foo/" 2))
 115     (test '("~/a:cl-user:print-foo/" 2))
 116     (test '("~/cl-user:print-foo:print-foo/" 2))))
 117
 118 ;;; better make sure that we get this one right, too
 119 (defun print-foo\:print-foo (stream arg colonp atsignp &rest params)
 120   (declare (ignore colonp atsignp params))
 121   (format stream "~d" arg))
 122
 123 (with-test (:name (format :call-function-directive :colon-in-function-name))
 124   (assert (string= (format nil "~/cl-user:print-foo:print-foo/" 2) "2"))
 125   (assert (string= (format nil "~/cl-user::print-foo:print-foo/" 2) "2")))
 126
 127 ;;; Check for error detection of illegal directives in a~<..~> justify
 128 ;;; block (see ANSI section 22.3.5.2)
 129 (with-test (:name (format :justification-directive :illegal-directives))
 130   (flet ((test (args)
 131            (multiple-value-bind (fun failure-p)
 132                (checked-compile `(lambda () (format nil ,@args))
 133                                 :allow-failure t)
 134              (assert failure-p)
 135              (assert-error (funcall fun)))))
 136     (test '("~<~W~>" 'foo))
 137     (test '("~<~<~A~:>~>" '(foo))))
 138   (assert (string= (format nil "~<~<~A~>~>" 'foo) "FOO")))
 139
 140 (with-test (:name (format :justification-directive :atsign-check))
 141   (multiple-value-bind (fun failure-p)
 142       (checked-compile `(lambda () (format nil "~<~@>"))
 143                        :allow-failure t)
 144     (assert failure-p)
 145     (assert-error (funcall fun)))
 146   (assert-error (eval '(format nil "~<~@>"))))
 147
 148 ;;; Check that arrays that we print while *PRINT-READABLY* is true are
 149 ;;; in fact generating similar objects.
 150 (with-test (:name (print array *print-readably* :dimensions))
 151   (assert (equal (array-dimensions
 152                   (read-from-string
 153                    (with-output-to-string (s)
 154                      (let ((*print-readably* t))
 155                        (print (make-array '(1 2 0)) s)))))
 156                  '(1 2 0))))
 157
 158 (with-test (:name (print array *print-readably* :element-type))
 159   (dolist (array (list (make-array '(1 0 1) :initial-element 0)
 160                        (make-array 0 :element-type nil)
 161                        (make-array 1 :element-type 'base-char :initial-element #\nul)
 162                        (make-array 1 :element-type 'character :initial-element #\nul)))
 163     (assert (multiple-value-bind (result error)
 164                 (read-from-string
 165                  (write-to-string array :readably t))
 166               ;; it might not be readably-printable
 167               (or (typep error 'print-not-readable)
 168                   (and
 169                    ;; or else it had better have the same dimensions
 170                    (equal (array-dimensions result) (array-dimensions array))
 171                    ;; and the same element-type
 172                    (equal (array-element-type result) (array-element-type array))))))))
 173
 174 ;;; before 0.8.0.66 it signalled UNBOUND-VARIABLE
 175 (with-test (:name (write vector :smoke))
 176   (let ((*standard-output* (make-broadcast-stream)))
 177     (write #(1 2 3) :pretty nil :readably t)))
 178
 179 ;;; another UNBOUND-VARIABLE, this time due to a bug in FORMATTER
 180 ;;; expanders.
 181 (with-test (:name (formatter :smoke))
 182   (funcall (formatter "~@<~A~:*~A~:>") (make-broadcast-stream) 3))
 183
 184 ;;; the PPC floating point backend was at one point sufficiently
 185 ;;; broken that this looped infinitely or caused segmentation
 186 ;;; violations through stack corruption.
 187 (with-test (:name (print float :smoke))
 188   (let ((*standard-output* (make-broadcast-stream)))
 189     (print 0.0001)))
 190
 191 ;;; In sbcl-0.8.7, the ~W format directive interpreter implemented the
 192 ;;; sense of the colon and at-sign modifiers exactly backwards.
 193 ;;;
 194 ;;; (Yes, the test for this *is* substantially hairier than the fix;
 195 ;;; wanna make something of it?)
 196 (cl:in-package :cl-user)
 197 (defstruct wexerciser-0-8-7)
 198 (defun wexercise-0-8-7-interpreted (wformat)
 199   (format t wformat (make-wexerciser-0-8-7)))
 200 (defmacro define-compiled-wexercise-0-8-7 (wexercise wformat)
 201   `(defun ,wexercise ()
 202     (declare (optimize (speed 3) (space 1)))
 203     (format t ,wformat (make-wexerciser-0-8-7))
 204     (values)))
 205 (define-compiled-wexercise-0-8-7 wexercise-0-8-7-compiled-without-atsign "~W")
 206 (define-compiled-wexercise-0-8-7 wexercise-0-8-7-compiled-with-atsign "~@W")
 207 (defmethod print-object :before ((wexerciser-0-8-7 wexerciser-0-8-7) stream)
 208   (unless (and *print-level* *print-length*)
 209     (error "gotcha coming")))
 210 (with-test (:name (format :write-directive :colon :at-sign 1))
 211   (let ((*print-level* 11)
 212         (*print-length* 12)
 213         (*standard-output* (make-broadcast-stream)))
 214     (wexercise-0-8-7-interpreted "~W")
 215     (wexercise-0-8-7-compiled-without-atsign)))
 216 (remove-method #'print-object
 217                (find-method #'print-object
 218                             '(:before)
 219                             (mapcar #'find-class '(wexerciser-0-8-7 t))))
 220 (defmethod print-object :before ((wexerciser-0-8-7 wexerciser-0-8-7) stream)
 221   (when (or *print-level* *print-length*)
 222     (error "gotcha going")))
 223 (with-test (:name (format :write-directive :colon :at-sign 2))
 224   (let ((*print-level* 11)
 225         (*print-length* 12)
 226         (*standard-output* (make-broadcast-stream)))
 227     (wexercise-0-8-7-interpreted "~@W")
 228     (wexercise-0-8-7-compiled-with-atsign)))
 229 \f
 230 ;;; WRITE-TO-STRING was erroneously DEFKNOWNed as FOLDABLE
 231
 232 ;;; This bug from PFD
 233 (defpackage "SCRATCH-WRITE-TO-STRING" (:use))
 234 (with-test (:name (write symbol *package*))
 235   (with-standard-io-syntax
 236     (let* ((*package* (find-package "SCRATCH-WRITE-TO-STRING"))
 237            (answer (write-to-string 'scratch-write-to-string::x :readably nil)))
 238       (assert (string= answer "X")))))
 239
 240 ;;; and a couple from Bruno Haible
 241 (defun my-pprint-reverse (out list)
 242   (write-char #\( out)
 243   (when (setq list (reverse list))
 244     (loop
 245      (write (pop list) :stream out)
 246      (when (endp list) (return))
 247      (write-char #\Space out)))
 248   (write-char #\) out))
 249 (with-test (:name (write *print-pprint-dispatch* 1))
 250   (with-standard-io-syntax
 251     (let ((*print-pprint-dispatch* (copy-pprint-dispatch)))
 252       (set-pprint-dispatch '(cons (member foo)) 'my-pprint-reverse 0)
 253       (let ((answer (write-to-string '(foo bar :boo 1) :pretty t :escape t)))
 254         (assert (string= answer "(1 :BOO BAR FOO)"))))))
 255
 256 (defun my-pprint-logical (out list)
 257   (pprint-logical-block (out list :prefix "(" :suffix ")")
 258     (when list
 259       (loop
 260        (write-char #\? out)
 261        (write (pprint-pop) :stream out)
 262        (write-char #\? out)
 263        (pprint-exit-if-list-exhausted)
 264        (write-char #\Space out)))))
 265 (with-test (:name (write *print-pprint-dispatch* 2))
 266   (with-standard-io-syntax
 267     (let ((*print-pprint-dispatch* (copy-pprint-dispatch)))
 268       (set-pprint-dispatch '(cons (member bar)) 'my-pprint-logical 0)
 269       (let ((answer (write-to-string '(bar foo :boo 1) :pretty t :escape t)))
 270         (assert (string= answer "(?BAR? ?FOO? ?:BOO? ?1?)"))))))
 271
 272 ;;; FORMAT string compile-time checker failure, reported by Thomas
 273 ;;; F. Burdick
 274 (with-test (:name (format :compile-time-check))
 275   (multiple-value-bind (fun failure-p warnings)
 276       (checked-compile '(lambda () (format nil "~{"))
 277                        :allow-failure t :allow-warnings t)
 278     (assert failure-p)
 279     (assert (= (length warnings) 1))
 280     (assert-error (funcall fun))))
 281
 282 ;;; floating point print/read consistency
 283 (with-test (:name (read print float :consistency))
 284   (let* ((x (/ -9.349640046247849d-21 -9.381494249123696d-11))
 285          (y (read-from-string (write-to-string x :readably t))))
 286     (assert (eql x y)))
 287
 288   (let ((x1 (float -5496527/100000000000000000))
 289         (x2 (float -54965272/1000000000000000000)))
 290     (assert (or (equal (multiple-value-list (integer-decode-float x1))
 291                        (multiple-value-list (integer-decode-float x2)))
 292                 (string/= (prin1-to-string x1) (prin1-to-string x2))))))
 293
 294 ;;; readable printing of arrays with *print-radix* t
 295 (with-test (:name (write read array *print-radix*))
 296   (let ((*print-radix* t)
 297         (*print-readably* t)
 298         (*print-pretty* nil))
 299     (let ((output (with-output-to-string (s)
 300                     (write #2a((t t) (nil nil)) :stream s))))
 301       (assert (equalp (read-from-string output) #2a((t t) (nil nil)))))))
 302
 303 ;;; NIL parameters to "interpreted" FORMAT directives
 304 (with-test (:name (format :v-directive-arg nil))
 305  (assert (string= (format nil "~v%" nil) (string #\Newline))))
 306
 307 ;;; PRINC-TO-STRING should bind print-readably
 308 (with-test (:name (princ-to-string *print-readably*))
 309   (let ((*print-readably* t))
 310     (assert (string= (princ-to-string #\7)
 311                      (write-to-string #\7 :escape nil :readably nil)))))
 312
 313 ;;; in FORMAT, ~^ inside ~:{ should go to the next case, not break
 314 ;;; iteration, even if one argument is just a one-element list.
 315 (with-test (:name (format :escape-upward-directive :in :iteration-directive))
 316   (assert (string= (format nil "~:{~A~^~}" '((A) (C D))) "AC")))
 317
 318 ;;; errors should be signaled if pprint and justification are mixed
 319 ;;; injudiciously...
 320 (with-test (:name (format :mixing :justification-directive :pprint-directives :illegal))
 321   (dolist (x (list "~<~:;~>~_" "~<~:;~>~I" "~<~:;~>~W"
 322                    "~<~:;~>~:T" "~<~:;~>~<~:>" "~_~<~:;~>"
 323                    "~I~<~:;~>" "~W~<~:;~>" "~:T~<~:;~>" "~<~:>~<~:;~>"))
 324     (assert-error (format nil x nil))
 325     (assert-error (format nil (eval `(formatter ,x)) nil))))
 326 ;;; ...but not in judicious cases.
 327 (with-test (:name (format :mixing :justification-directive :pprint-directives :legal))
 328   (dolist (x (list "~<~;~>~_" "~<~;~>~I" "~<~;~>~W"
 329                    "~<~;~>~:T" "~<~;~>~<~>" "~_~<~;~>"
 330                    "~I~<~;~>" "~W~<~;~>" "~:T~<~;~>" "~<~>~<~;~>"
 331                    "~<~:;~>~T" "~T~<~:;~>"))
 332     (assert (format nil x nil))
 333     (assert (format nil (eval `(formatter ,x)) nil))))
 334
 335 ;;; bug 350: bignum printing so memory-hungry that heap runs out
 336 ;;; -- just don't stall here forever on a slow box
 337 (with-test (:name :bug-350)
 338   (handler-case
 339       (with-timeout 10
 340         (print (ash 1 1000000) (make-broadcast-stream)))
 341     (timeout ()
 342       (print 'timeout!))))
 343
 344 ;;; bug 371: bignum print/read inconsistency
 345 (defvar *bug-371* -7043009959286724629649270926654940933664689003233793014518979272497911394287216967075767325693021717277238746020477538876750544587281879084559996466844417586093291189295867052594478662802691926547232838591510540917276694295393715934079679531035912244103731582711556740654671309980075069010778644542022/670550434139267031632063192770201289106737062379324644110801846820471752716238484923370056920388400273070254958650831435834503195629325418985020030706879602898158806736813101434594805676212779217311897830937606064579213895527844045511878668289820732425014254579493444623868748969110751636786165152601)
 346 (with-test (:name (read print bignum :consistency :bug-371))
 347   (let ((*print-base* 5)
 348         (*read-base* 5)
 349         (*print-radix* nil))
 350     (assert (= *bug-371* (read-from-string (prin1-to-string *bug-371*))))))
 351
 352 ;;; a spot of random-testing for rational printing
 353 (defvar *seed-state* (make-random-state))
 354 (ignore-errors
 355  (with-open-file (f "last-random-state.lisp-expr"
 356                     :direction :output :if-exists :supersede)
 357    ;; I don't want to see this every time
 358    (write *seed-state* :pretty nil :stream f))) ; so that we can reproduce errors
 359 (with-test (:name (read print rational :consistency ))
 360   (let ((seed (make-random-state *seed-state*)))
 361     (loop repeat 42
 362        do (let ((n (random (ash 1 1000) seed))
 363                 (d (random (ash 1 1000) seed)))
 364             (when (zerop (random 2 seed))
 365               (setf n (- n)))
 366             (let ((r (/ n d)))
 367               (loop for base from 2 to 36
 368                  do (let ((*print-base* base)
 369                           (*read-base* base)
 370                           (*print-radix* nil))
 371                       (assert (= r (read-from-string (prin1-to-string r))))
 372                       (if (= 36 base)
 373                           (decf *read-base*)
 374                           (incf *read-base*))
 375                       (assert (not (eql r (read-from-string (prin1-to-string r)))))
 376                       (let ((*print-radix* t))
 377                         (assert (= r (read-from-string
 378                                       (princ-to-string r))))))))))))
 379
 380 ;;;; Bugs, found by PFD
 381 ;;; NIL parameter for ~^ means `not supplied'
 382 (with-test (:name (format :escape-upward-directive :v-directive-arg nil))
 383   (loop for (format arg result) in
 384        '(("~:{~D~v^~D~}" ((3 1 4) (1 0 2) (7 nil) (5 nil 6)) "341756")
 385          ("~:{~1,2,v^~A~}" ((nil 0) (3 1) (0 2)) "02"))
 386      do (assert (string= (funcall #'format nil format arg) result))
 387      do (assert (string= (with-output-to-string (s)
 388                            (funcall (eval `(formatter ,format)) s arg))
 389                          result))))
 390
 391 ;;; NIL first parameter for ~R is equivalent to no parameter.
 392 (with-test (:name (format :radix-directive nil :argument))
 393   (assert (string= (format nil "~VR" nil 5) "five"))
 394   (assert (string= (format nil (formatter "~VR") nil 6) "six")))
 395
 396 ;;; CSR inserted a bug into Burger & Dybvig's float printer.  Caught
 397 ;;; by Raymond Toy
 398 (with-test (:name (format :exponential-floating-point-directive :smoke))
 399   (assert (string= (format nil "~E" 1d23) "1.0d+23")))
 400
 401 ;;; Fixed-format bugs from CLISP's test suite (reported by Bruno
 402 ;;; Haible, bug 317)
 403 (with-test (:name (format :fixed-format-floating-point-directive :bug-317))
 404  (assert (string= (format nil "~1F" 10) "10."))
 405  (assert (string= (format nil "~0F" 10) "10."))
 406  (assert (string= (format nil "~2F" 1234567.1) "1234567.")))
 407
 408 ;;; here's one that seems to fail most places.  I think this is right,
 409 ;;; and most of the other answers I've seen are definitely wrong.
 410 (with-test (:name (format :general-floating-point-directive :smoke))
 411   (assert (string= (format nil "~G" 1d23) "100000000000000000000000.    ")))
 412
 413 ;;; Adam Warner's test case
 414 (with-test (:name (format :fixed-format-floating-point-directive :at-sign))
 415   (assert (string= (format nil "~@F" 1.23) "+1.23")))
 416
 417
 418 ;;; New (2005-11-08, also known as CSR House day) float format test
 419 ;;; cases.  Simon Alexander, Raymond Toy, and others
 420 (with-test (:name (format :floating-point-directives :misc))
 421   (assert (string= (format nil "~9,4,,-7E" pi) ".00000003d+8"))
 422   (assert (string= (format nil "~9,4,,-5E" pi) ".000003d+6"))
 423   (assert (string= (format nil "~5,4,,7E" pi) "3141600.d-6"))
 424   (assert (string= (format nil "~11,4,,3E" pi) "  314.16d-2"))
 425   (assert (string= (format nil "~11,4,,5E" pi) "  31416.d-4"))
 426   (assert (string= (format nil "~11,4,,0E" pi) "  0.3142d+1"))
 427   (assert (string= (format nil "~9,,,-1E" pi) ".03142d+2"))
 428   (assert (string= (format nil "~,,,-2E" pi) "0.003141592653589793d+3"))
 429   (assert (string= (format nil "~,,,2E" pi) "31.41592653589793d-1"))
 430   (assert (string= (format nil "~E" pi) "3.141592653589793d+0"))
 431   (assert (string= (format nil "~9,5,,-1E" pi) ".03142d+2"))
 432   (assert (string= (format nil "~11,5,,-1E" pi) " 0.03142d+2"))
 433   (assert (string= (format nil "~G" pi) "3.141592653589793    "))
 434   (assert (string= (format nil "~9,5G" pi) "3.1416    "))
 435   (assert (string= (format nil "|~13,6,2,7E|" pi) "| 3141593.d-06|"))
 436   (assert (string= (format nil "~9,3,2,0,'%E" pi) "0.314d+01"))
 437   (assert (string= (format nil "~9,0,6f" pi) " 3141593."))
 438   (assert (string= (format nil "~6,2,1,'*F" pi) " 31.42"))
 439   (assert (string= (format nil "~6,2,1,'*F" (* 100 pi)) "******"))
 440   (assert (string= (format nil "~9,3,2,-2,'%@E" pi) "+.003d+03"))
 441   (assert (string= (format nil "~10,3,2,-2,'%@E" pi) "+0.003d+03"))
 442   (assert (string= (format nil "~15,3,2,-2,'%,'=@E" pi) "=====+0.003d+03"))
 443   (assert (string= (format nil "~9,3,2,-2,'%E" pi) "0.003d+03"))
 444   (assert (string= (format nil "~8,3,2,-2,'%@E" pi) "%%%%%%%%"))
 445
 446   (assert (string= (format nil "~g" 1e0) "1.    "))
 447   (assert (string= (format nil "~g" 1.2d40) "12000000000000000000000000000000000000000.    "))
 448
 449   (assert (string= (format nil "~e" 0) "0.0e+0"))
 450   (assert (string= (format nil "~e" 0d0) "0.0d+0"))
 451   (assert (string= (format nil "~9,,4e" 0d0) "0.0d+0000")))
 452
 453 (with-test (:name (print hash-table print-not-readable))
 454   (let ((table (make-hash-table)))
 455     (setf (gethash 1 table) t)
 456     (assert-error (with-standard-io-syntax
 457                     (let ((*read-eval* nil)
 458                           (*print-readably* t))
 459                       (with-output-to-string (*standard-output*)
 460                         (prin1 table))))
 461                   print-not-readable)))
 462
 463 ;; Test that we can print characters readably regardless of the external format
 464 ;; of the stream.
 465
 466 (defun test-readable-character (character external-format)
 467   (let ((file (scratch-file-name "tmp")))
 468     (unwind-protect
 469          (progn
 470            (with-open-file (stream file
 471                                    :direction :output
 472                                    :external-format external-format
 473                                    :if-exists :supersede)
 474              (write character :stream stream :readably t))
 475            (with-open-file (stream file
 476                                    :direction :input
 477                                    :external-format external-format
 478                                    :if-does-not-exist :error)
 479              (assert (char= (read stream) character))))
 480       (ignore-errors
 481         (delete-file file)))))
 482
 483 (with-test (:name (:print-readable :character :utf-8) :skipped-on (not :sb-unicode))
 484   (test-readable-character (code-char #xfffe) :utf-8))
 485
 486 (with-test (:name (:print-readable :character :iso-8859-1) :skipped-on (not :sb-unicode))
 487   (test-readable-character (code-char #xfffe) :iso-8859-1))
 488
 489 (with-test (:name (format :character-directive :colon))
 490   (assert (string= (eval '(format nil "~:C" #\a)) "a"))
 491   (assert (string= (format nil (formatter "~:C") #\a) "a")))
 492
 493 ;;; This used to trigger an AVER instead.
 494 (with-test (:name (format :end-of-justification-directive :mismatch))
 495   (assert-error (eval '(formatter "~>")) sb-format:format-error)
 496   (assert-error (eval '(format t "~>")) sb-format:format-error))
 497
 498 ;;; readably printing hash-tables, check for circularity
 499 (with-test (:name (print read hash-table *print-circle*))
 500   (let ((x (cons 1 2))
 501         (h (make-hash-table))
 502         (*print-readably* t)
 503         (*print-circle* t)
 504         (*read-eval* t))
 505     (setf (gethash x h) h)
 506     (destructuring-bind (x2 . h2) (read-from-string (write-to-string (cons x h)))
 507       (assert (equal x x2))
 508       (assert (eq h2 (gethash x2 h2))))))
 509
 510 ;;; an off-by-one error in the ~R format directive until 1.0.15.20
 511 ;;; prevented printing cardinals and ordinals between (expt 10 63) and
 512 ;;; (1- (expt 10 66))
 513 (with-test (:name (format :radix-directive :large-values))
 514   (assert (string= (format nil "~R" (expt 10 63)) "one vigintillion"))
 515   (assert (string= (format nil "~:R" (expt 10 63)) "one vigintillionth")))
 516
 517 ;;; too-clever cacheing for PRINT-OBJECT resulted in a bogus method
 518 ;;; for printing RESTART objects.  Check also CONTROL-STACK-EXHAUSTED
 519 ;;; and HEAP-EXHAUSTED-ERROR.
 520 (with-test (:name (print-object restart condition))
 521   (let ((result (with-output-to-string (*standard-output*)
 522                   (princ (find-restart 'abort)))))
 523     (assert (string/= result "#<" :end1 2)))
 524   (let ((result (with-output-to-string (*standard-output*)
 525                   (princ (make-condition 'sb-kernel::control-stack-exhausted)))))
 526     (assert (string/= result "#<" :end1 2)))
 527   (let ((result (with-output-to-string (*standard-output*)
 528                   (princ (make-condition 'sb-kernel::heap-exhausted-error)))))
 529     (assert (string/= result "#<" :end1 2))))
 530
 531 (with-test (:name (:with-standard-io-syntax :bind-print-pprint-dispatch))
 532   (let ((*print-pprint-dispatch* (copy-pprint-dispatch nil)))
 533     (set-pprint-dispatch 'symbol #'(lambda (stream obj)
 534                                      (declare (ignore obj))
 535                                      (write-string "FOO" stream)))
 536     (with-standard-io-syntax
 537       (let ((*print-pretty* t))
 538         (assert (string= (princ-to-string 'bar) "BAR"))))))
 539
 540 ;;; lp#1398290 (which obsoletes lp#488979)
 541
 542 (defclass a-class-name () ())
 543
 544 (with-test (:name :print-unreadable-no-conditional-newline)
 545   (flet ((test (pretty)
 546            (assert (not (find #\Newline
 547                               (let ((*print-pretty* pretty)
 548                                     (*print-right-margin* 10))
 549                                 (format nil "~A" (make-instance 'a-class-name)))
 550                               :test #'char=)))))
 551     (test t)
 552     (test nil)))
 553
 554 ;;; The PRINT-OBJECT method for RANDOM-STATE used to have a bogus
 555 ;;; dimension argument for MAKE-ARRAY.
 556 (with-test (:name (print random-state))
 557   (assert (equalp *random-state*
 558                   (read-from-string
 559                    (write-to-string *random-state*)))))
 560
 561 (with-test (:name (write :return-value))
 562   ;; COMPILE is called explicitly because there was a bug in the
 563   ;; compiler-macro for WRITE, which isn't expanded by the evaluator.
 564   (checked-compile-and-assert ()
 565       '(lambda (s) (write 123 :stream s))
 566     (((make-broadcast-stream)) 123)))
 567
 568 (with-test (:name (write write-to-string compiler-macro :lp598374 :lp581564))
 569   (let ((test (checked-compile
 570                `(lambda (object &optional output-stream)
 571                   (write object :stream output-stream)))))
 572     (assert (equal "(HELLO WORLD)"
 573                    (with-output-to-string (*standard-output*)
 574                      (let ((list '(hello world)))
 575                        (assert (eq list (funcall test list)))))))
 576     (assert (equal "12"
 577                    (with-output-to-string (*standard-output*)
 578                      (assert (eql 12 (funcall test 12)))))))
 579   (checked-compile-and-assert  ()
 580       `(lambda ()
 581          (let ((*print-length* 42))
 582            (write-to-string *print-length* :length nil)))
 583     (() "42")))
 584
 585 (with-test (:name (format :compile-literal-dest-string))
 586   (multiple-value-bind (fun failure-p warnings)
 587       (checked-compile `(lambda (x) (format "~A" x))
 588                        :allow-warnings t)
 589     (declare (ignore fun))
 590     (assert failure-p)
 591     (assert (= (length warnings) 1))))
 592
 593 (with-test (:name (format :bug-308961))
 594   (assert (string= (format nil "~4,1F" 0.001) " 0.0"))
 595   (assert (string= (format nil "~4,1@F" 0.001) "+0.0"))
 596   (assert (string= (format nil "~E" 0.01) "1.0e-2"))
 597   (assert (string= (format nil "~G" 0.01) "1.00e-2")))
 598
 599 (with-test (:name (:fp-print-read-consistency single-float))
 600   (let ((*random-state* (make-random-state t))
 601         (oops))
 602     (loop for f = most-positive-single-float then (/ f 2.0)
 603           while (> f 0.0)
 604           do (loop for fr = (random f)
 605                    repeat 10
 606                    do (unless (eql fr (read-from-string (prin1-to-string fr)))
 607                         (push fr oops)
 608                         (return))))
 609     (loop for f = most-negative-single-float then (/ f 2.0)
 610           while (< f -0.0)
 611           do (loop for fr = (- (random (- f)))
 612                    repeat 10
 613                    do (unless (eql fr (read-from-string (prin1-to-string fr)))
 614                         (push fr oops)
 615                         (return))))
 616     (when oops
 617       (error "FP print-read inconsistencies:~%~:{  ~S => ~S~%~}"
 618              (mapcar (lambda (f)
 619                        (list f (read-from-string (prin1-to-string f))))
 620                      oops)))))
 621
 622 (with-test (:name (:fp-print-read-consistency double-float))
 623   (let ((*random-state* (make-random-state t))
 624         (oops))
 625     (loop for f = most-positive-double-float then (/ f 2d0)
 626           while (> f #-x86 0d0 #+x86 0.1d0) ;; too much precision
 627           do (loop for fr = (random f)
 628                    repeat 10
 629                    do (unless (eql fr (read-from-string (prin1-to-string fr)))
 630                         (push fr oops)
 631                         (return))))
 632     (loop for f = most-negative-double-float then (/ f 2d0)
 633           while (< f #-x86 -0d0 #+x86 -0.1d0)
 634           do (loop for fr = (- (random (- f)))
 635                    repeat 10
 636                    do (unless (eql fr (read-from-string (prin1-to-string fr)))
 637                         (push fr oops)
 638                         (return))))
 639     (when oops
 640       (error "FP print-read inconsistencies:~%~:{  ~S => ~S~%~}"
 641              (mapcar (lambda (f)
 642                        (list f (read-from-string (prin1-to-string f))))
 643                      oops)))))
 644
 645 (with-test (:name (format :bug-811386))
 646   (assert (equal "   0.00" (format nil "~7,2,-2f" 0)))
 647   (assert (equal "   0.00" (format nil "~7,2,2f" 0)))
 648   (assert (equal "   0.01" (format nil "~7,2,-2f" 1)))
 649   (assert (equal " 100.00" (format nil "~7,2,2f" 1)))
 650   (assert (equal "   0.00" (format nil "~7,2,-2f" 0.1)))
 651   (assert (equal "  10.00" (format nil "~7,2,2f" 0.1)))
 652   (assert (equal "   0.01" (format nil "~7,2,-2f" 0.5))))
 653
 654 (with-test (:name (format :bug-867684))
 655   (assert (equal "ab" (format nil "a~0&b"))))
 656
 657 (with-test (:name :print-unreadably-function)
 658   (assert (search "#<HASH-TABLE"
 659                   (handler-bind ((print-not-readable #'sb-ext:print-unreadably))
 660                     (let ((*read-eval* nil))
 661                       (write-to-string (make-hash-table) :readably t))))))
 662
 663 (with-test (:name :printing-specialized-arrays-readably)
 664   (let ((*read-eval* t)
 665         (dimss (loop repeat 10
 666                      collect (loop repeat (1+ (random 3))
 667                                    collect (1+ (random 10)))))
 668         (props sb-vm:*specialized-array-element-type-properties*))
 669     (labels ((random-elt (type)
 670                (case type
 671                  (base-char
 672                   (code-char (random 128)))
 673                  (character
 674                   (code-char (random char-code-limit)))
 675                  (single-float
 676                   (+ least-positive-normalized-single-float
 677                      (random most-positive-single-float)))
 678                  (double-float
 679                   (+ least-positive-normalized-double-float
 680                          (random most-positive-double-float)))
 681                  (bit
 682                   (random 2))
 683                  (fixnum
 684                   (random most-positive-fixnum))
 685                  ((t)
 686                   t)
 687                  (otherwise
 688                   (destructuring-bind (type x) type
 689                     (ecase type
 690                       (unsigned-byte
 691                        (random (1- (expt 2 x))))
 692                       (signed-byte
 693                        (- (random (expt 2 (1- x)))))
 694                       (complex
 695                        (complex (random-elt x) (random-elt x)))))))))
 696       (dotimes (i (length props))
 697         (let ((et (sb-vm:saetp-specifier (aref props i))))
 698           (when et
 699             (when (eq 'base-char et)
 700               ;; base-strings not included in the #. printing.
 701               (go :next))
 702             (dolist (dims dimss)
 703               (let ((a (make-array dims :element-type et)))
 704                 (assert (equal et (array-element-type a)))
 705                 (dotimes (i (array-total-size a))
 706                   (setf (row-major-aref a i) (random-elt et)))
 707                 (let ((copy (read-from-string (write-to-string a :readably t))))
 708                   (assert (equal dims (array-dimensions copy)))
 709                   (assert (equal et (array-element-type copy)))
 710                   (assert (equal (array-total-size a) (array-total-size copy)))
 711                   (dotimes (i (array-total-size a))
 712                     (assert (equal (row-major-aref a i) (row-major-aref copy i)))))))))
 713         :next))))
 714
 715 (with-test (:name (format :negative-colinc-and-mincol))
 716   (assert-error (format nil "~-2a" 1))
 717   (assert-error (format nil "~,0a" 1)))
 718
 719 (with-test (:name (format :bug-905817))
 720   ;; The bug manifests itself in an endless loop in FORMAT.
 721   ;; Correct behaviour is to signal an error.
 722   (handler-case
 723       (with-timeout 5
 724         (assert-error (format nil "e~8,0s" 12395)))
 725     (timeout ()
 726       (error "Endless loop in FORMAT"))))
 727
 728 (with-test (:name (format :type-check))
 729   (assert (equal "1/10" (format nil "~2r" 1/2)))
 730   (assert (equal "1/10" (eval '(format nil "~2r" 1/2))))
 731   (assert-error (eval '(format nil "~r" 1.32)) sb-format:format-error)
 732   (assert-error (eval '(format nil "~c" 1.32)) sb-format:format-error))
 733
 734 ;; Setup for test of print-object on a class with no proper name.
 735 ;; There are various PRINT-OBJECT tests strewn throughout, all of which
 736 ;; are not in the obvious place to me, except for perhaps 'clos.impure'
 737 ;; which is also not the right place because that file concerns CLOS
 738 ;; behavior in general, not to mention being far too noisy in its output.
 739 (defclass fruit () (a))
 740 (defvar *fruit1* (find-class 'fruit))
 741 (setf (find-class 'fruit) nil)
 742 (defclass fruit () (n o))
 743 (defvar *fruit2* (find-class 'fruit))
 744 (setf (find-class 'fruit) nil)
 745 (defclass fruit () (x))
 746 (with-test (:name (print-object :improper-class-name))
 747   (assert (string/= (write-to-string *fruit1*) (write-to-string *fruit2*)))
 748   (assert (string/= (write-to-string (find-class 'fruit))
 749                     (write-to-string *fruit1*))))
 750
 751 (defclass f-s-o-for-print-object (sb-mop:funcallable-standard-object)
 752   ()
 753   (:metaclass sb-mop:funcallable-standard-class))
 754 (with-test (:name (print-object sb-mop:funcallable-standard-object))
 755   (let ((instance (make-instance 'f-s-o-for-print-object)))
 756     (assert (eql 0 (search "#<F-S-O-FOR-PRINT-OBJECT"
 757                            (with-output-to-string (stream)
 758                              (print-object instance stream)))))))
 759
 760 (with-test (:name (format :readably))
 761   (let ((*print-readably* t))
 762     (assert (format nil "~$" #'format))
 763     (assert (format nil "~d" #'format))
 764     (assert (format nil "~x" #'format))
 765     (assert (format nil "~b" #'format))
 766     (assert (format nil "~3r" #'format))
 767     (locally
 768         (declare (notinline format))
 769       (assert (format nil "~$" #'format))
 770       (assert (format nil "~d" #'format))
 771       (assert (format nil "~x" #'format))
 772       (assert (format nil "~b" #'format))
 773       (assert (format nil "~3r" #'format)))))
 774
 775 (with-test (:name (format *print-base*))
 776   (let ((*print-base* 3))
 777     (assert (equal (format nil "~g" '(123)) "(123)"))
 778     (assert (equal (format nil "~f" '(123)) "(123)"))
 779     (assert (equal (format nil "~e" '(123)) "(123)"))
 780     (assert (equal (format nil "~$" '(123)) "(123)"))
 781     (locally
 782         (declare (notinline format))
 783       (assert (equal (format nil "~g" '(123)) "(123)"))
 784       (assert (equal (format nil "~f" '(123)) "(123)"))
 785       (assert (equal (format nil "~e" '(123)) "(123)"))
 786       (assert (equal (format nil "~$" '(123)) "(123)")))))
 787
 788 (with-test (:name (format :concatenate))
 789   (checked-compile-and-assert ()
 790       `(lambda (x) (format nil "~s" (the string x)))
 791     (("\\") (prin1-to-string "\\"))))
 792
 793 (with-test (:name (write :stream nil))
 794   (assert
 795    (equal
 796     (with-output-to-string (*standard-output*)
 797       (funcall (checked-compile `(lambda () (write "xx" :stream nil)))))
 798     "\"xx\"")))
 799
 800 (define-condition foo () (a))
 801 (defvar *ccc* (make-condition 'foo))
 802 (handler-bind ((warning #'muffle-warning)) (define-condition foo (warning) (a)))
 803 (with-test (:name :write-obsolete-condition)
 804   (assert (search "UNPRINTABLE" (write-to-string *ccc*))))
 805
 806 (with-test (:name (format :no-overeager-compile-time-processing))
 807   (checked-compile '(lambda (x) (format t "~/nopackage:nofun/" x))))
 808
 809 (with-test (:name (write :case :capitalize))
 810   (assert (string= (write-to-string 'fluffy-bunny-count :case :capitalize)
 811                    "Fluffy-Bunny-Count")))
 812
 813 (defclass foo2 () ())
 814 (with-test (:name (print :random standard-object :lp1654550))
 815   (assert (search "#<FOO2 {" (write-to-string (make-instance 'foo2) :pretty nil)))
 816   (assert (search "#<FOO2 {" (write-to-string (make-instance 'foo2) :pretty t))))
 817
 818 ;; STRINGIFY-OBJECT failed to use the pretty-print dispatch table
 819 ;; for integers.
 820 (with-test (:name :stringify-pretty-integer)
 821   (unwind-protect
 822        (progn
 823          (set-pprint-dispatch 'fixnum
 824                               (lambda (stream obj)
 825                                 (format stream "#{Fixnum ")
 826                                 (write obj :stream stream :pretty nil)
 827                                 (write-char #\} stream)))
 828          (assert (string= (write-to-string 92 :pretty t)
 829                           "#{Fixnum 92}")))
 830     (set-pprint-dispatch 'fixnum nil)))
 831
 832 (with-test (:name :readable-vector-circularity)
 833   (let ((x (make-array 1 :element-type 'base-char :initial-contents "x"))
 834         (y (make-array 1 :element-type 'base-char :initial-contents "y")))
 835     (assert (equal (read-from-string (write-to-string (list x y) :readably t :circle t))
 836                    '("x" "y")))))
 837
 838 (with-test (:name :format-tilde-at-newline)
 839   (let ((control "hi.~@
 840   there"))
 841     (declare (notinline format))
 842     (assert (string= (format nil control) "hi.
 843 there"))))
 844
 845 (with-test (:name :sharp-s-respect-io-syntax)
 846   (let ((s (sb-c::make-definition-source-location)))
 847     (let ((str (write-to-string s :escape t :pretty t)))
 848       (assert (eql (search "#S(SB-C:DEFINITION-SOURCE-LOCATION" str) 0)))
 849     (let ((str (write-to-string s :escape t :pretty nil)))
 850       (assert (eql (search "#S(SB-C:DEFINITION-SOURCE-LOCATION" str) 0)))
 851     (let ((str (write-to-string s :escape nil :pretty t)))
 852       (assert (eql (search "#S(DEFINITION-SOURCE-LOCATION" str) 0)))
 853     (let ((str (write-to-string s :escape nil :pretty nil)))
 854       (assert (eql (search "#S(DEFINITION-SOURCE-LOCATION" str) 0)))))
 855
 856 (with-test (:name :print-layoutless-instance)
 857   (let ((x (sb-kernel:%make-instance 5)))
 858     (let ((str (write-to-string x :pretty nil)))
 859       (assert (search "#<SB-KERNEL:INSTANCE {" str)))
 860     ;; pretty goes through the non-pretty function unless you've
 861     ;; modified the pprint-dispatch table, in which case this crashes.
 862     ;; The unmodified dispatch table never attempts to handle a subtype of INSTANCE.
 863     (let ((str (with-standard-io-syntax
 864                  (write-to-string x :pretty t :readably nil))))
 865       (assert (search "#<SB-KERNEL:INSTANCE {" str))))
 866   (let ((x (test-util::make-funcallable-instance 5)))
 867     (let ((str (write-to-string x :pretty nil)))
 868       (assert (search "#<SB-KERNEL:FUNCALLABLE-INSTANCE {" str)))))
 869
 870 (with-test (:name :functionless-funcallable-instance)
 871   (let ((x (sb-pcl::%make-standard-funcallable-instance
 872             #()
 873             #-executable-funinstances #xdead)))
 874     (assert (search "#<SB-PCL::STANDARD-FUNCALLABLE-INSTANCE"
 875                     (write-to-string x :pretty nil))))) ; should not crash
 876
 877 (with-test (:name :bug-885320)
 878   (let* ((form `(format nil "~E"))
 879          (fun (compile nil `(lambda (x) (,@form x)))))
 880     (assert (string= (funcall fun 1.0) "1.0e+0"))
 881     (assert (string= (funcall fun 1.0d0) "1.0d+0"))
 882     (assert (string= (apply (car form) (append (cdr form) (list 1.0))) "1.0e+0"))
 883     (assert (string= (apply (car form) (append (cdr form) (list 1.0d0))) "1.0d+0"))))
 884
 885 (with-test (:name (:bug-885320 :d-k+1))
 886   (let* ((form `(format nil "~,2,,3E"))
 887          (fun (compile nil `(lambda (x) (,@form x)))))
 888     (assert (string= (funcall fun 1.0) "100.e-2"))
 889     (assert (string= (funcall fun 1.0d0) "100.d-2"))
 890     (assert (string= (apply (car form) (append (cdr form) (list 1.0))) "100.e-2"))
 891     (assert (string= (apply (car form) (append (cdr form) (list 1.0d0))) "100.d-2"))))