tests/seq.impure.lisp

   1 ;;;; tests related to sequences
   2
   3 ;;;; This file is impure because we want to be able to use DEFUN.
   4
   5 ;;;; This software is part of the SBCL system. See the README file for
   6 ;;;; more information.
   7 ;;;;
   8 ;;;; While most of SBCL is derived from the CMU CL system, the test
   9 ;;;; files (like this one) were written from scratch after the fork
  10 ;;;; from CMU CL.
  11 ;;;;
  12 ;;;; This software is in the public domain and is provided with
  13 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  14 ;;;; more information.
  15
  16 (load "assertoid.lisp")
  17
  18 (defpackage :seq-test
  19   (:use :cl :assertoid))
  20
  21 (in-package :seq-test)
  22
  23 ;;; helper functions for exercising SEQUENCE code on data of many
  24 ;;; specialized types, and in many different optimization scenarios
  25 (defun for-every-seq-1 (base-seq snippet)
  26   (dolist (seq-type '(list
  27                       (simple-array t 1)
  28                       (vector t)
  29                       (simple-array character 1)
  30                       (vector character)
  31                       (simple-array (signed-byte 4) 1)
  32                       (vector (signed-byte 4))))
  33     (flet ((entirely (eltype)
  34              (every (lambda (el) (typep el eltype)) base-seq)))
  35       (dolist (declaredness '(nil t))
  36         (dolist (optimization '(((speed 3) (space 0))
  37                                 ((speed 2) (space 2))
  38                                 ((speed 1) (space 2))
  39                                 ((speed 0) (space 1))))
  40           (let* ((seq (if (eq seq-type 'list)
  41                           (coerce base-seq 'list)
  42                           (destructuring-bind (type-first &rest type-rest)
  43                               seq-type
  44                             (ecase type-first
  45                               (simple-array
  46                                (destructuring-bind (eltype one) type-rest
  47                                  (assert (= one 1))
  48                                  (if (entirely eltype)
  49                                      (coerce base-seq seq-type)
  50                                      (return))))
  51                               (vector
  52                                (destructuring-bind (eltype) type-rest
  53                                  (if (entirely eltype)
  54                                      (let ((initial-element
  55                                             (cond ((subtypep eltype 'character)
  56                                                    #\!)
  57                                                   ((subtypep eltype 'number)
  58                                                    0)
  59                                                   (t #'error))))
  60                                        (replace (make-array
  61                                                  (+ (length base-seq)
  62                                                     (random 3))
  63                                                  :element-type eltype
  64                                                  :fill-pointer
  65                                                  (length base-seq)
  66                                                  :initial-element
  67                                                  initial-element)
  68                                                 base-seq))
  69                                      (return))))))))
  70                  (lambda-expr `(lambda (seq)
  71                                  ,@(when declaredness
  72                                      `((declare (type ,seq-type seq))))
  73                                  (declare (optimize ,@optimization))
  74                                  ,snippet)))
  75             (format t "~&~S~%" lambda-expr)
  76             (multiple-value-bind (fun warnings-p failure-p)
  77                 (compile nil lambda-expr)
  78               (when (or warnings-p failure-p)
  79                 (error "~@<failed compilation:~2I ~_LAMBDA-EXPR=~S ~_WARNINGS-P=~S ~_FAILURE-P=~S~:@>"
  80                        lambda-expr warnings-p failure-p))
  81               (format t "~&~S ~S~%~S~%~S ~S~%"
  82                       base-seq snippet seq-type declaredness optimization)
  83               (format t "~&(TYPEP SEQ 'SIMPLE-ARRAY)=~S~%"
  84                       (typep seq 'simple-array))
  85               (unless (funcall fun seq)
  86                 (error "~@<failed test:~2I ~_BASE-SEQ=~S ~_SNIPPET=~S ~_SEQ-TYPE=~S ~_DECLAREDNESS=~S ~_OPTIMIZATION=~S~:@>"
  87                        base-seq
  88                        snippet
  89                        seq-type
  90                        declaredness
  91                        optimization)))))))))
  92 (defun for-every-seq (base-seq snippets)
  93   (dolist (snippet snippets)
  94     (for-every-seq-1 base-seq snippet)))
  95
  96 ;;; a wrapper to hide declared type information from the compiler, so
  97 ;;; we don't get stopped by compiler warnings about e.g. compiling
  98 ;;; (POSITION 1 #() :KEY #'ABS) when #() has been coerced to a string.
  99 (defun indiscriminate (fun)
 100   (lambda (&rest rest) (apply fun rest)))
 101
 102 ;;; asymmetric test arg order example from ANSI FIND definition page
 103 (assert (eql #\space ; original example, depends on ASCII character ordering
 104              (find #\d "here are some letters that can be looked at"
 105                    :test #'char>)))
 106 (assert (eql #\e ; modified example, depends only on standard a-z ordering
 107              (find #\f "herearesomeletters" :test #'char>)))
 108 (assert (eql 4 ; modified more, avoids charset technicalities completely
 109              (find 5 '(6 4) :test '>)))
 110
 111 ;;; tests of FIND, POSITION, FIND-IF, and POSITION-IF (and a few for
 112 ;;; deprecated FIND-IF-NOT and POSITION-IF-NOT too)
 113 (for-every-seq #()
 114   '((null (find 1 seq))
 115     (null (find 1 seq :from-end t))
 116     (null (position 1 seq :key (indiscriminate #'abs)))
 117     (null (position nil seq :test (constantly t)))
 118     (null (position nil seq :test nil))
 119     (null (position nil seq :test-not nil))
 120     (null (find-if #'1+ seq :key (indiscriminate #'log)))
 121     (null (position-if #'identity seq :from-end t))
 122     (null (find-if-not #'packagep seq))
 123     (null (position-if-not #'packagep seq :key nil))))
 124 (for-every-seq #(1)
 125   '((null (find 2 seq))
 126     ;; Get the argument ordering for asymmetric tests like #'> right.
 127     ;; (bug reported and fixed by Alexey Dejneka sbcl-devel 2001-10-17)
 128     (eql 1 (find 2 seq :test #'>))
 129     (find 2 seq :key #'1+)
 130     (find 1 seq :from-end t)
 131     (null (find 1 seq :from-end t :start 1))
 132     (null (find 0 seq :from-end t))
 133     (eql 0 (position 1 seq :key #'abs))
 134     (null (position nil seq :test 'equal))
 135     (eql 1 (find-if #'1- seq :key #'log))
 136     (eql 0 (position-if #'identity seq :from-end t))
 137     (null (find-if-not #'sin seq))
 138     (eql 0 (position-if-not #'packagep seq :key 'identity))))
 139 (for-every-seq #(1 2 3 2 1)
 140   '((find 3 seq)
 141     (find 3 seq :from-end 'yes)
 142     (eql 1 (position 1.5 seq :test #'<))
 143     (eql 0 (position 0 seq :key '1-))
 144     (eql 4 (position 0 seq :key '1- :from-end t))
 145     (eql 2 (position 4 seq :key '1+))
 146     (eql 2 (position 4 seq :key '1+ :from-end t))
 147     (eql 1 (position 2 seq))
 148     (eql 1 (position 2 seq :start 1))
 149     (null (find 2 seq :start 1 :end 1))
 150     (eql 3 (position 2 seq :start 2))
 151     (eql 3 (position 2 seq :key nil :from-end t))
 152     (eql 2 (position 3 seq :test '=))
 153     (eql 0 (position 3 seq :test-not 'equalp))
 154     (eql 2 (position 3 seq :test 'equal :from-end t))
 155     (null (position 4 seq :test #'eql))
 156     (null (find-if #'packagep seq))
 157     (eql 1 (find-if #'plusp seq))
 158     (eql 3 (position-if #'plusp seq :key #'1- :from-end t))
 159     (eql 1 (position-if #'evenp seq))
 160     (eql 3 (position-if #'evenp seq :from-end t))
 161     (eql 2 (position-if #'plusp seq :from-end nil :key '1- :start 2))
 162     (eql 3 (position-if #'plusp seq :from-end t :key '1- :start 2))
 163     (null (position-if #'plusp seq :from-end t :key '1- :start 2 :end 2))
 164     (null (find-if-not #'plusp seq))
 165     (eql 0 (position-if-not #'evenp seq))
 166     (eql 0 (search #(1) seq))
 167     (eql 1 (search #(4 5) seq :key 'oddp))
 168     (eql 1 (search #(-2) seq :test (lambda (a b) (= (- a) b))))
 169     (eql 4 (search #(1) seq :start2 1))
 170     (null (search #(3) seq :start2 3))
 171     (eql 2 (search #(3) seq :start2 2))
 172     (eql 0 (search #(1 2) seq))
 173     (null (search #(2 1 3) seq))
 174     (eql 0 (search #(0 1 2 4) seq :start1 1 :end1 3))
 175     (eql 3 (search #(0 2 1 4) seq :start1 1 :end1 3))
 176     (eql 4 (search #(1) seq :from-end t))
 177     (eql 0 (search #(1 2) seq :from-end t))
 178     (null (search #(1 2) seq :from-end t :start2 1))
 179     (eql 0 (search #(0 1 2 4) seq :from-end t :start1 1 :end1 3))
 180     (eql 3 (search #(0 2 1 4) seq :from-end t :start1 1 :end1 3))
 181     (null (search #(2 1 3) seq :from-end t))))
 182 (for-every-seq "string test"
 183   '((null (find 0 seq))
 184     (null (find #\D seq :key #'char-upcase))
 185     (find #\E seq :key #'char-upcase)
 186     (null (find #\e seq :key #'char-upcase))
 187     (eql 3 (position #\i seq))
 188     (eql 0 (position #\s seq :key #'char-downcase))
 189     (eql 1 (position #\s seq :key #'char-downcase :test #'char/=))
 190     (eql 9 (position #\s seq :from-end t :test #'char=))
 191     (eql 10 (position #\s seq :from-end t :test #'char/=))
 192     (eql 4 (position #\N seq :from-end t :key 'char-upcase :test #'char-equal))
 193     (eql 5 (position-if (lambda (c) (equal #\g c)) seq))
 194     (eql 5 (position-if (lambda (c) (equal #\g c)) seq :from-end t))
 195     (find-if #'characterp seq)
 196     (find-if (lambda (c) (typep c 'base-char)) seq :from-end t)
 197     (null (find-if 'upper-case-p seq))))
 198
 199 ;;; SUBSEQ
 200 (let ((avec (make-array 10
 201                         :fill-pointer 4
 202                         :initial-contents '(0 1 2 3 iv v vi vii iix ix))))
 203   ;; These first five always worked AFAIK.
 204   (assert (equalp (subseq avec 0 3) #(0 1 2)))
 205   (assert (equalp (subseq avec 3 3) #()))
 206   (assert (equalp (subseq avec 1 3) #(1 2)))
 207   (assert (equalp (subseq avec 1) #(1 2 3)))
 208   (assert (equalp (subseq avec 1 4) #(1 2 3)))
 209   ;; SBCL bug found ca. 2002-05-01 by OpenMCL's correct handling of
 210   ;; SUBSEQ, CSR's driving portable cross-compilation far enough to
 211   ;; reach the SUBSEQ calls in assem.lisp, and WHN's sleazy
 212   ;; translation of old CMU CL new-assem.lisp into sufficiently grotty
 213   ;; portable Lisp that it passed suitable illegal values to SUBSEQ to
 214   ;; exercise the bug:-|
 215   ;;
 216   ;; SUBSEQ should check its END value against logical LENGTH, not
 217   ;; physical ARRAY-DIMENSION 0.
 218   ;;
 219   ;; fixed in sbcl-0.7.4.22 by WHN
 220   (assert (null (ignore-errors (aref (subseq avec 1 5) 0)))))
 221
 222 ;;; FILL
 223 (defun test-fill-typecheck (x)
 224   (declare (optimize (safety 3) (space 2) (speed 1)))
 225   (fill (make-string 10) x))
 226
 227 (assert (string= (test-fill-typecheck #\@) "@@@@@@@@@@"))
 228 ;;; BUG 186, fixed in sbcl-0.7.5.5
 229 (assert (null (ignore-errors (test-fill-typecheck 4097))))
 230
 231 ;;; MAKE-SEQUENCE, COERCE, CONCATENATE, MERGE, MAP and requested
 232 ;;; result type (BUGs 46a, 46b, 66)
 233 (macrolet ((assert-type-error (form)
 234              `(assert (typep (nth-value 1 (ignore-errors ,form))
 235                              'type-error))))
 236   (dolist (type-stub '((simple-vector)
 237                        (vector *)
 238                        (vector (signed-byte 8))
 239                        (vector (unsigned-byte 16))
 240                        (vector (signed-byte 32))
 241                        (simple-bit-vector)))
 242     (declare (optimize safety))
 243     (format t "~&~S~%" type-stub)
 244     ;; MAKE-SEQUENCE
 245     (assert (= (length (make-sequence `(,@type-stub) 10)) 10))
 246     (assert (= (length (make-sequence `(,@type-stub 10) 10)) 10))
 247     (assert-type-error (make-sequence `(,@type-stub 10) 11))
 248     ;; COERCE
 249     (assert (= (length (coerce '(0 0 0) `(,@type-stub))) 3))
 250     (assert (= (length (coerce #(0 0 0) `(,@type-stub 3))) 3))
 251     (assert-type-error (coerce #*111 `(,@type-stub 4)))
 252     ;; CONCATENATE
 253     (assert (= (length (concatenate `(,@type-stub) #(0 0 0) #*111)) 6))
 254     (assert (equalp (concatenate `(,@type-stub) #(0 0 0) #*111)
 255                    (coerce #(0 0 0 1 1 1) `(,@type-stub))))
 256     (assert (= (length (concatenate `(,@type-stub 6) #(0 0 0) #*111)) 6))
 257     (assert (equalp (concatenate `(,@type-stub 6) #(0 0 0) #*111)
 258                    (coerce #(0 0 0 1 1 1) `(,@type-stub 6))))
 259     (assert-type-error (concatenate `(,@type-stub 5) #(0 0 0) #*111))
 260     ;; MERGE
 261     (macrolet ((test (type)
 262                  `(merge ,type (copy-seq #(0 1 0)) (copy-seq #*111) #'>)))
 263       (assert (= (length (test `(,@type-stub))) 6))
 264       (assert (equalp (test `(,@type-stub))
 265                       (coerce #(1 1 1 0 1 0) `(,@type-stub))))
 266       (assert (= (length (test `(,@type-stub 6))) 6))
 267       (assert (equalp (test `(,@type-stub 6))
 268                       (coerce #(1 1 1 0 1 0) `(,@type-stub 6))))
 269       (assert-type-error (test `(,@type-stub 4))))
 270     ;; MAP
 271     (assert (= (length (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))) 4))
 272     (assert (equalp (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))
 273                    (coerce #(0 1 1 0) `(,@type-stub))))
 274     (assert (= (length (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1)))
 275                4))
 276     (assert (equalp (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1))
 277                    (coerce #(0 1 1 0) `(,@type-stub 4))))
 278     (assert-type-error (map `(,@type-stub 5) #'logxor #(0 0 1 1) '(0 1 0 1))))
 279   ;; some more CONCATENATE tests for strings
 280   (locally
 281       (declare (optimize safety))
 282     (assert (string= (concatenate 'string "foo" " " "bar") "foo bar"))
 283     (assert (string= (concatenate '(string 7) "foo" " " "bar") "foo bar"))
 284     (assert-type-error (concatenate '(string 6) "foo" " " "bar"))
 285     (assert (string= (concatenate '(string 6) "foo" #(#\b #\a #\r)) "foobar"))
 286     (assert-type-error (concatenate '(string 7) "foo" #(#\b #\a #\r))))
 287   ;; Non-VECTOR ARRAY types aren't allowed as vector type specifiers.
 288   (locally
 289     (declare (optimize safety))
 290     (assert-type-error (concatenate 'simple-array "foo" "bar"))
 291     (assert-type-error (map 'simple-array #'identity '(1 2 3)))
 292     (assert (equalp #(11 13)
 293                     (map '(simple-array fixnum (*)) #'+ '(1 2 3) '(10 11))))
 294     (assert-type-error (coerce '(1 2 3) 'simple-array))
 295     (assert-type-error (merge 'simple-array (list 1 3) (list 2 4) '<))
 296     (assert (equalp #(3 2 1) (coerce '(3 2 1) '(vector fixnum))))
 297     (assert-type-error (map 'array #'identity '(1 2 3)))
 298     (assert-type-error (map '(array fixnum) #'identity '(1 2 3)))
 299     (assert (equalp #(1 2 3) (coerce '(1 2 3) '(vector fixnum))))
 300     ;; but COERCE has an exemption clause:
 301     (assert (string= "foo" (coerce "foo" 'simple-array)))
 302     ;; ... though not in all cases.
 303     (assert-type-error (coerce '(#\f #\o #\o) 'simple-array))))
 304
 305 ;;; As pointed out by Raymond Toy on #lisp IRC, MERGE had some issues
 306 ;;; with user-defined types until sbcl-0.7.8.11
 307 (deftype list-typeoid () 'list)
 308 (assert (equal '(1 2 3 4) (merge 'list-typeoid (list 1 3) (list 2 4) '<)))
 309 ;;; and also with types that weren't precicely LIST
 310 (assert (equal '(1 2 3 4) (merge 'cons (list 1 3) (list 2 4) '<)))
 311
 312 ;;; but wait, there's more! The NULL and CONS types also have implicit
 313 ;;; length requirements:
 314 (macrolet ((assert-type-error (form)
 315              `(assert (typep (nth-value 1 (ignore-errors ,form))
 316                              'type-error))))
 317   (locally
 318       (declare (optimize safety))
 319     ;; MAKE-SEQUENCE
 320     (assert-type-error (make-sequence 'cons 0))
 321     (assert-type-error (make-sequence 'null 1))
 322     (assert-type-error (make-sequence '(cons t null) 0))
 323     (assert-type-error (make-sequence '(cons t null) 2))
 324     ;; KLUDGE: I'm not certain that this test actually tests for what
 325     ;; it should test, in that the type deriver and optimizers might
 326     ;; be too smart for the good of an exhaustive test system.
 327     ;; However, it makes me feel good.  -- CSR, 2002-10-18
 328     (assert (null (make-sequence 'null 0)))
 329     (assert (= (length (make-sequence 'cons 3)) 3))
 330     (assert (= (length (make-sequence '(cons t null) 1)) 1))
 331     ;; and NIL is not a valid type for MAKE-SEQUENCE
 332     (assert-type-error (make-sequence 'nil 0))
 333     ;; COERCE
 334     (assert-type-error (coerce #(1) 'null))
 335     (assert-type-error (coerce #() 'cons))
 336     (assert-type-error (coerce #() '(cons t null)))
 337     (assert-type-error (coerce #(1 2) '(cons t null)))
 338     (assert (null (coerce #() 'null)))
 339     (assert (= (length (coerce #(1) 'cons)) 1))
 340     (assert (= (length (coerce #(1) '(cons t null))) 1))
 341     (assert-type-error (coerce #() 'nil))
 342     ;; MERGE
 343     (assert-type-error (merge 'null (list 1 3) (list 2 4) '<))
 344     (assert-type-error (merge 'cons () () '<))
 345     (assert (null (merge 'null () () '<)))
 346     (assert (= (length (merge 'cons (list 1 3) (list 2 4) '<)) 4))
 347     (assert (= (length (merge '(cons t (cons t (cons t (cons t null))))
 348                               (list 1 3) (list 2 4)
 349                               '<))
 350                4))
 351     (assert-type-error (merge 'nil () () '<))
 352     ;; CONCATENATE
 353     (assert-type-error (concatenate 'null '(1) "2"))
 354     (assert-type-error (concatenate 'cons #() ()))
 355     (assert-type-error (concatenate '(cons t null) #(1 2 3) #(4 5 6)))
 356     (assert (null (concatenate 'null () #())))
 357     (assert (= (length (concatenate 'cons #() '(1) "2 3")) 4))
 358     (assert (= (length (concatenate '(cons t cons) '(1) "34")) 3))
 359     (assert-type-error (concatenate 'nil '(3)))
 360     ;; FIXME: tests for MAP to come when some brave soul implements
 361     ;; the analogous type checking for MAP/%MAP.
 362     ))
 363 \f
 364 ;;; ELT should signal an error of type TYPE-ERROR if its index
 365 ;;; argument isn't a valid sequence index for sequence:
 366 (defun test-elt-signal (x)
 367   (elt x 3))
 368 (assert (raises-error? (test-elt-signal "foo") type-error))
 369 (assert (eql (test-elt-signal "foob") #\b))
 370 (locally
 371   (declare (optimize (safety 3)))
 372   (assert (raises-error? (elt (list 1 2 3) 3) type-error)))
 373 \f
 374 ;;; confusion in the refactoring led to this signalling an unbound
 375 ;;; variable, not a type error.
 376 (defun svrefalike (x)
 377   (svref x 0))
 378 (assert (raises-error? (svrefalike #*0) type-error))
 379 \f
 380 ;;; checks for uniform bounding index handling under SAFETY 3 code.
 381 ;;;
 382 ;;; KLUDGE: not all in one big form because that causes SBCL to spend
 383 ;;; an absolute age trying to compile it.
 384 (defmacro sequence-bounding-indices-test (&body body)
 385   `(progn
 386     (locally
 387     ;; See Issues 332 [and 333(!)] in the CLHS
 388     (declare (optimize (safety 3)))
 389     (let ((string (make-array 10
 390                               :fill-pointer 5
 391                               :initial-element #\a
 392                               :element-type 'base-char)))
 393         ,(car body)
 394         (format t "... BASE-CHAR")
 395         (finish-output)
 396         (flet ((reset ()
 397                  (setf (fill-pointer string) 10)
 398                  (fill string #\a)
 399                  (setf (fill-pointer string) 5)))
 400           (declare (ignorable #'reset))
 401           ,@(cdr body))))
 402     (locally
 403       ;; See Issues 332 [and 333(!)] in the CLHS
 404       (declare (optimize (safety 3)))
 405       (let ((string (make-array 10
 406                                 :fill-pointer 5
 407                                 :initial-element #\a
 408                                 :element-type 'character)))
 409         ,(car body)
 410         (format t "... CHARACTER")
 411         (finish-output)
 412       (flet ((reset ()
 413                (setf (fill-pointer string) 10)
 414                (fill string #\a)
 415                (setf (fill-pointer string) 5)))
 416         (declare (ignorable #'reset))
 417           ,@(cdr body))))))
 418
 419 (declaim (notinline opaque-identity))
 420 (defun opaque-identity (x) x)
 421 ;;; Accessor SUBSEQ
 422 (sequence-bounding-indices-test
 423  (format t "~&/Accessor SUBSEQ")
 424  (assert (string= (subseq string 0 5) "aaaaa"))
 425  (assert (raises-error? (subseq string 0 6)))
 426  (assert (raises-error? (subseq string (opaque-identity -1) 5)))
 427  (assert (raises-error? (subseq string 4 2)))
 428  (assert (raises-error? (subseq string 6)))
 429  (assert (string= (setf (subseq string 0 5) "abcde") "abcde"))
 430  (assert (string= (subseq string 0 5) "abcde"))
 431  (reset)
 432  (assert (raises-error? (setf (subseq string 0 6) "abcdef")))
 433  (assert (raises-error? (setf (subseq string (opaque-identity -1) 5) "abcdef")))
 434  (assert (raises-error? (setf (subseq string 4 2) "")))
 435  (assert (raises-error? (setf (subseq string 6) "ghij"))))
 436
 437 ;;; Function COUNT, COUNT-IF, COUNT-IF-NOT
 438 (sequence-bounding-indices-test
 439  (format t "~&/Function COUNT, COUNT-IF, COUNT-IF-NOT")
 440  (assert (= (count #\a string :start 0 :end nil) 5))
 441  (assert (= (count #\a string :start 0 :end 5) 5))
 442  (assert (raises-error? (count #\a string :start 0 :end 6)))
 443  (assert (raises-error? (count #\a string :start (opaque-identity -1) :end 5)))
 444  (assert (raises-error? (count #\a string :start 4 :end 2)))
 445  (assert (raises-error? (count #\a string :start 6 :end 9)))
 446  (assert (= (count-if #'alpha-char-p string :start 0 :end nil) 5))
 447  (assert (= (count-if #'alpha-char-p string :start 0 :end 5) 5))
 448  (assert (raises-error?
 449           (count-if #'alpha-char-p string :start 0 :end 6)))
 450  (assert (raises-error?
 451           (count-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 452  (assert (raises-error?
 453           (count-if #'alpha-char-p string :start 4 :end 2)))
 454  (assert (raises-error?
 455           (count-if #'alpha-char-p string :start 6 :end 9)))
 456  (assert (= (count-if-not #'alpha-char-p string :start 0 :end nil) 0))
 457  (assert (= (count-if-not #'alpha-char-p string :start 0 :end 5) 0))
 458  (assert (raises-error?
 459           (count-if-not #'alpha-char-p string :start 0 :end 6)))
 460  (assert (raises-error?
 461           (count-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 462  (assert (raises-error?
 463           (count-if-not #'alpha-char-p string :start 4 :end 2)))
 464  (assert (raises-error?
 465           (count-if-not #'alpha-char-p string :start 6 :end 9))))
 466
 467 ;;; Function FILL
 468 (sequence-bounding-indices-test
 469  (format t "~&/Function FILL")
 470  (assert (string= (fill string #\b :start 0 :end 5) "bbbbb"))
 471  (assert (string= (fill string #\c :start 0 :end nil) "ccccc"))
 472  (assert (raises-error? (fill string #\d :start 0 :end 6)))
 473  (assert (raises-error? (fill string #\d :start (opaque-identity -1) :end 5)))
 474  (assert (raises-error? (fill string #\d :start 4 :end 2)))
 475  (assert (raises-error? (fill string #\d :start 6 :end 9))))
 476
 477 ;;; Function FIND, FIND-IF, FIND-IF-NOT
 478 (sequence-bounding-indices-test
 479  (format t "~&/Function FIND, FIND-IF, FIND-IF-NOT")
 480  (assert (char= (find #\a string :start 0 :end nil) #\a))
 481  (assert (char= (find #\a string :start 0 :end 5) #\a))
 482  (assert (raises-error? (find #\a string :start 0 :end 6)))
 483  (assert (raises-error? (find #\a string :start (opaque-identity -1) :end 5)))
 484  (assert (raises-error? (find #\a string :start 4 :end 2)))
 485  (assert (raises-error? (find #\a string :start 6 :end 9)))
 486  (assert (char= (find-if #'alpha-char-p string :start 0 :end nil) #\a))
 487  (assert (char= (find-if #'alpha-char-p string :start 0 :end 5) #\a))
 488  (assert (raises-error?
 489           (find-if #'alpha-char-p string :start 0 :end 6)))
 490  (assert (raises-error?
 491           (find-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 492  (assert (raises-error?
 493           (find-if #'alpha-char-p string :start 4 :end 2)))
 494  (assert (raises-error?
 495           (find-if #'alpha-char-p string :start 6 :end 9)))
 496  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end nil) nil))
 497  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end 5) nil))
 498  (assert (raises-error?
 499           (find-if-not #'alpha-char-p string :start 0 :end 6)))
 500  (assert (raises-error?
 501           (find-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 502  (assert (raises-error?
 503           (find-if-not #'alpha-char-p string :start 4 :end 2)))
 504  (assert (raises-error?
 505           (find-if-not #'alpha-char-p string :start 6 :end 9))))
 506
 507 ;;; Function MISMATCH
 508 (sequence-bounding-indices-test
 509  (format t "~&/Function MISMATCH")
 510  (assert (null (mismatch string "aaaaa" :start1 0 :end1 nil)))
 511  (assert (= (mismatch "aaab" string :start2 0 :end2 4) 3))
 512  (assert (raises-error? (mismatch "aaaaaa" string :start2 0 :end2 6)))
 513  (assert (raises-error? (mismatch string "aaaaaa" :start1 (opaque-identity -1) :end1 5)))
 514  (assert (raises-error? (mismatch string "" :start1 4 :end1 2)))
 515  (assert (raises-error? (mismatch "aaaa" string :start2 6 :end2 9))))
 516
 517 ;;; Function PARSE-INTEGER
 518 (sequence-bounding-indices-test
 519  (format t "~&/Function PARSE-INTEGER")
 520  (setf (fill-pointer string) 10)
 521  (setf (subseq string 0 10) "1234567890")
 522  (setf (fill-pointer string) 5)
 523  (assert (= (parse-integer string :start 0 :end 5) 12345))
 524  (assert (= (parse-integer string :start 0 :end nil) 12345))
 525  (assert (raises-error? (parse-integer string :start 0 :end 6)))
 526  (assert (raises-error? (parse-integer string :start (opaque-identity -1) :end 5)))
 527  (assert (raises-error? (parse-integer string :start 4 :end 2)))
 528  (assert (raises-error? (parse-integer string :start 6 :end 9))))
 529
 530 ;;; Function PARSE-NAMESTRING
 531 (sequence-bounding-indices-test
 532  (format t "~&/Function PARSE-NAMESTRING")
 533  (setf (fill-pointer string) 10)
 534  (setf (subseq string 0 10)
 535        #-win32 "/dev/ /tmp"
 536        #+win32 "C:/   NUL")
 537  (setf (fill-pointer string) 5)
 538  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 539                                      :start 0 :end 5)))
 540  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 541                                      :start 0 :end nil)))
 542  (assert (raises-error? (parse-namestring string nil
 543                                           *default-pathname-defaults*
 544                                           :start 0 :end 6)))
 545  (assert (raises-error? (parse-namestring string nil
 546                                           *default-pathname-defaults*
 547                                           :start (opaque-identity -1) :end 5)))
 548  (assert (raises-error? (parse-namestring string nil
 549                                           *default-pathname-defaults*
 550                                           :start 4 :end 2)))
 551  (assert (raises-error? (parse-namestring string nil
 552                                           *default-pathname-defaults*
 553                                           :start 6 :end 9))))
 554
 555 ;;; Function POSITION, POSITION-IF, POSITION-IF-NOT
 556 (sequence-bounding-indices-test
 557  (format t "~&/Function POSITION, POSITION-IF, POSITION-IF-NOT")
 558
 559  (assert (= (position #\a string :start 0 :end nil) 0))
 560  (assert (= (position #\a string :start 0 :end 5) 0))
 561  (assert (raises-error? (position #\a string :start 0 :end 6)))
 562  (assert (raises-error? (position #\a string :start (opaque-identity -1) :end 5)))
 563  (assert (raises-error? (position #\a string :start 4 :end 2)))
 564  (assert (raises-error? (position #\a string :start 6 :end 9)))
 565  (assert (= (position-if #'alpha-char-p string :start 0 :end nil) 0))
 566  (assert (= (position-if #'alpha-char-p string :start 0 :end 5) 0))
 567  (assert (raises-error?
 568           (position-if #'alpha-char-p string :start 0 :end 6)))
 569  (assert (raises-error?
 570           (position-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 571  (assert (raises-error?
 572           (position-if #'alpha-char-p string :start 4 :end 2)))
 573  (assert (raises-error?
 574           (position-if #'alpha-char-p string :start 6 :end 9)))
 575  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end nil) nil))
 576  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end 5) nil))
 577  (assert (raises-error?
 578           (position-if-not #'alpha-char-p string :start 0 :end 6)))
 579  (assert (raises-error?
 580           (position-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 581  (assert (raises-error?
 582           (position-if-not #'alpha-char-p string :start 4 :end 2)))
 583  (assert (raises-error?
 584           (position-if-not #'alpha-char-p string :start 6 :end 9))))
 585
 586 ;;; Function READ-FROM-STRING
 587 (sequence-bounding-indices-test
 588  (format t "~&/Function READ-FROM-STRING")
 589  (setf (subseq string 0 5) "(a b)")
 590  (assert (equal (read-from-string string nil nil :start 0 :end 5) '(a b)))
 591  (assert (equal (read-from-string string nil nil :start 0 :end nil) '(a b)))
 592  (assert (raises-error? (read-from-string string nil nil :start 0 :end 6)))
 593  (assert (raises-error? (read-from-string string nil nil :start (opaque-identity -1) :end 5)))
 594  (assert (raises-error? (read-from-string string nil nil :start 4 :end 2)))
 595  (assert (raises-error? (read-from-string string nil nil :start 6 :end 9))))
 596
 597 ;;; Function REDUCE
 598 (sequence-bounding-indices-test
 599  (format t "~&/Function REDUCE")
 600  (setf (subseq string 0 5) "abcde")
 601  (assert (equal (reduce #'list* string :from-end t :start 0 :end nil)
 602                 '(#\a #\b #\c #\d . #\e)))
 603  (assert (equal (reduce #'list* string :from-end t :start 0 :end 5)
 604                 '(#\a #\b #\c #\d . #\e)))
 605  (assert (raises-error? (reduce #'list* string :start 0 :end 6)))
 606  (assert (raises-error? (reduce #'list* string :start (opaque-identity -1) :end 5)))
 607  (assert (raises-error? (reduce #'list* string :start 4 :end 2)))
 608  (assert (raises-error? (reduce #'list* string :start 6 :end 9))))
 609
 610 ;;; Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, DELETE, DELETE-IF,
 611 ;;; DELETE-IF-NOT
 612 (sequence-bounding-indices-test
 613  (format t "~&/Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, ...")
 614  (assert (equal (remove #\a string :start 0 :end nil) ""))
 615  (assert (equal (remove #\a string :start 0 :end 5) ""))
 616  (assert (raises-error? (remove #\a string :start 0 :end 6)))
 617  (assert (raises-error? (remove #\a string :start (opaque-identity -1) :end 5)))
 618  (assert (raises-error? (remove #\a string :start 4 :end 2)))
 619  (assert (raises-error? (remove #\a string :start 6 :end 9)))
 620  (assert (equal (remove-if #'alpha-char-p string :start 0 :end nil) ""))
 621  (assert (equal (remove-if #'alpha-char-p string :start 0 :end 5) ""))
 622  (assert (raises-error?
 623           (remove-if #'alpha-char-p string :start 0 :end 6)))
 624  (assert (raises-error?
 625           (remove-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 626  (assert (raises-error?
 627           (remove-if #'alpha-char-p string :start 4 :end 2)))
 628  (assert (raises-error?
 629           (remove-if #'alpha-char-p string :start 6 :end 9)))
 630  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end nil)
 631                 "aaaaa"))
 632  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end 5)
 633                 "aaaaa"))
 634  (assert (raises-error?
 635           (remove-if-not #'alpha-char-p string :start 0 :end 6)))
 636  (assert (raises-error?
 637           (remove-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 638  (assert (raises-error?
 639           (remove-if-not #'alpha-char-p string :start 4 :end 2)))
 640  (assert (raises-error?
 641           (remove-if-not #'alpha-char-p string :start 6 :end 9))))
 642 (sequence-bounding-indices-test
 643  (format t "~&/... DELETE, DELETE-IF, DELETE-IF-NOT")
 644  (assert (equal (delete #\a string :start 0 :end nil) ""))
 645  (reset)
 646  (assert (equal (delete #\a string :start 0 :end 5) ""))
 647  (reset)
 648  (assert (raises-error? (delete #\a string :start 0 :end 6)))
 649  (reset)
 650  (assert (raises-error? (delete #\a string :start (opaque-identity -1) :end 5)))
 651  (reset)
 652  (assert (raises-error? (delete #\a string :start 4 :end 2)))
 653  (reset)
 654  (assert (raises-error? (delete #\a string :start 6 :end 9)))
 655  (reset)
 656  (assert (equal (delete-if #'alpha-char-p string :start 0 :end nil) ""))
 657  (reset)
 658  (assert (equal (delete-if #'alpha-char-p string :start 0 :end 5) ""))
 659  (reset)
 660  (assert (raises-error?
 661           (delete-if #'alpha-char-p string :start 0 :end 6)))
 662  (reset)
 663  (assert (raises-error?
 664           (delete-if #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 665  (reset)
 666  (assert (raises-error?
 667           (delete-if #'alpha-char-p string :start 4 :end 2)))
 668  (reset)
 669  (assert (raises-error?
 670           (delete-if #'alpha-char-p string :start 6 :end 9)))
 671  (reset)
 672  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end nil)
 673                 "aaaaa"))
 674  (reset)
 675  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end 5)
 676                 "aaaaa"))
 677  (reset)
 678  (assert (raises-error?
 679           (delete-if-not #'alpha-char-p string :start 0 :end 6)))
 680  (reset)
 681  (assert (raises-error?
 682           (delete-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5)))
 683  (reset)
 684  (assert (raises-error?
 685           (delete-if-not #'alpha-char-p string :start 4 :end 2)))
 686  (reset)
 687  (assert (raises-error?
 688           (delete-if-not #'alpha-char-p string :start 6 :end 9))))
 689
 690 ;;; Function REMOVE-DUPLICATES, DELETE-DUPLICATES
 691 (sequence-bounding-indices-test
 692  (format t "~&/Function REMOVE-DUPLICATES, DELETE-DUPLICATES")
 693  (assert (string= (remove-duplicates string :start 0 :end 5) "a"))
 694  (assert (string= (remove-duplicates string :start 0 :end nil) "a"))
 695  (assert (raises-error? (remove-duplicates string :start 0 :end 6)))
 696  (assert (raises-error? (remove-duplicates string :start (opaque-identity -1) :end 5)))
 697  (assert (raises-error? (remove-duplicates string :start 4 :end 2)))
 698  (assert (raises-error? (remove-duplicates string :start 6 :end 9)))
 699  (assert (string= (delete-duplicates string :start 0 :end 5) "a"))
 700  (reset)
 701  (assert (string= (delete-duplicates string :start 0 :end nil) "a"))
 702  (reset)
 703  (assert (raises-error? (delete-duplicates string :start 0 :end 6)))
 704  (reset)
 705  (assert (raises-error? (delete-duplicates string :start (opaque-identity -1) :end 5)))
 706  (reset)
 707  (assert (raises-error? (delete-duplicates string :start 4 :end 2)))
 708  (reset)
 709  (assert (raises-error? (delete-duplicates string :start 6 :end 9))))
 710
 711 ;;; Function REPLACE
 712 (sequence-bounding-indices-test
 713  (format t "~&/Function REPLACE")
 714  (assert (string= (replace string "bbbbb" :start1 0 :end1 5) "bbbbb"))
 715  (assert (string= (replace (copy-seq "ccccc")
 716                            string
 717                            :start2 0 :end2 nil) "bbbbb"))
 718  (assert (raises-error? (replace string "ccccc" :start1 0 :end1 6)))
 719  (assert (raises-error? (replace string "ccccc" :start2 (opaque-identity -1) :end2 5)))
 720  (assert (raises-error? (replace string "ccccc" :start1 4 :end1 2)))
 721  (assert (raises-error? (replace string "ccccc" :start1 6 :end1 9))))
 722
 723 ;;; Function SEARCH
 724 (sequence-bounding-indices-test
 725  (format t "~&/Function SEARCH")
 726  (assert (= (search "aa" string :start2 0 :end2 5) 0))
 727  (assert (null (search string "aa" :start1 0 :end2 nil)))
 728  (assert (raises-error? (search "aa" string :start2 0 :end2 6)))
 729  (assert (raises-error? (search "aa" string :start2 (opaque-identity -1) :end2 5)))
 730  (assert (raises-error? (search "aa" string :start2 4 :end2 2)))
 731  (assert (raises-error? (search "aa" string :start2 6 :end2 9))))
 732
 733 ;;; Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE,
 734 ;;; NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE
 735 (defmacro string-case-frob (fn)
 736   `(progn
 737     (assert (raises-error? (,fn string :start 0 :end 6)))
 738     (assert (raises-error? (,fn string :start (opaque-identity -1) :end 5)))
 739     (assert (raises-error? (,fn string :start 4 :end 2)))
 740     (assert (raises-error? (,fn string :start 6 :end 9)))))
 741
 742 (sequence-bounding-indices-test
 743  (format t "~&/Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE, ...")
 744  (string-case-frob string-upcase)
 745  (string-case-frob string-downcase)
 746  (string-case-frob string-capitalize)
 747  (format t "~&/... NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE")
 748  (string-case-frob nstring-upcase)
 749  (string-case-frob nstring-downcase)
 750  (string-case-frob nstring-capitalize))
 751
 752 ;;; Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=,
 753 ;;; STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, STRING-GREATERP,
 754 ;;; STRING-NOT-GREATERP, STRING-NOT-LESSP
 755 (defmacro string-predicate-frob (fn)
 756   `(progn
 757     (,fn string "abcde" :start1 0 :end1 5)
 758     (,fn "fghij" string :start2 0 :end2 nil)
 759     (assert (raises-error? (,fn string "klmno"
 760                                 :start1 0 :end1 6)))
 761     (assert (raises-error? (,fn "pqrst" string
 762                                 :start2 (opaque-identity -1) :end2 5)))
 763     (assert (raises-error? (,fn "uvwxy" string
 764                                 :start1 4 :end1 2)))
 765     (assert (raises-error? (,fn string "z" :start2 6 :end2 9)))))
 766 (sequence-bounding-indices-test
 767  (format t "~&/Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=, ...")
 768  (string-predicate-frob string=)
 769  (string-predicate-frob string/=)
 770  (string-predicate-frob string<)
 771  (string-predicate-frob string>)
 772  (string-predicate-frob string<=)
 773  (string-predicate-frob string>=))
 774 (sequence-bounding-indices-test
 775  (format t "~&/... STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, ...")
 776  (string-predicate-frob string-equal)
 777  (string-predicate-frob string-not-equal)
 778  (string-predicate-frob string-lessp))
 779 (sequence-bounding-indices-test
 780  (format t "~&/... STRING-GREATERP, STRING-NOT-GREATERP, STRING-NOT-LESSP")
 781  (string-predicate-frob string-greaterp)
 782  (string-predicate-frob string-not-greaterp)
 783  (string-predicate-frob string-not-lessp))
 784
 785 ;;; Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT,
 786 ;;; NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT
 787 (sequence-bounding-indices-test
 788  (format t "~&/Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT, ...")
 789  (assert (string= (substitute #\b #\a string :start 0 :end 5) "bbbbb"))
 790  (assert (string= (substitute #\c #\a string :start 0 :end nil)
 791                   "ccccc"))
 792  (assert (raises-error? (substitute #\b #\a string :start 0 :end 6)))
 793  (assert (raises-error? (substitute #\b #\a string :start (opaque-identity -1) :end 5)))
 794  (assert (raises-error? (substitute #\b #\a string :start 4 :end 2)))
 795  (assert (raises-error? (substitute #\b #\a string :start 6 :end 9)))
 796  (assert (string= (substitute-if #\b #'alpha-char-p string
 797                                  :start 0 :end 5)
 798                   "bbbbb"))
 799  (assert (string= (substitute-if #\c #'alpha-char-p string
 800                                  :start 0 :end nil)
 801                   "ccccc"))
 802  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 803                                        :start 0 :end 6)))
 804  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 805                                        :start (opaque-identity -1) :end 5)))
 806  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 807                                        :start 4 :end 2)))
 808  (assert (raises-error? (substitute-if #\b #'alpha-char-p string
 809                                        :start 6 :end 9)))
 810  (assert (string= (substitute-if-not #\b #'alpha-char-p string
 811                                      :start 0 :end 5)
 812                   "aaaaa"))
 813  (assert (string= (substitute-if-not #\c #'alpha-char-p string
 814                                      :start 0 :end nil)
 815                   "aaaaa"))
 816  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 817                                            :start 0 :end 6)))
 818  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 819                                            :start (opaque-identity -1) :end 5)))
 820  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 821                                            :start 4 :end 2)))
 822  (assert (raises-error? (substitute-if-not #\b #'alpha-char-p string
 823                                            :start 6 :end 9))))
 824 (sequence-bounding-indices-test
 825  (format t "~&/... NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT")
 826  (assert (string= (nsubstitute #\b #\a string :start 0 :end 5) "bbbbb"))
 827  (reset)
 828  (assert (string= (nsubstitute #\c #\a string :start 0 :end nil)
 829                   "ccccc"))
 830  (reset)
 831  (assert (raises-error? (nsubstitute #\b #\a string :start 0 :end 6)))
 832  (reset)
 833  (assert (raises-error? (nsubstitute #\b #\a string :start (opaque-identity -1) :end 5)))
 834  (reset)
 835  (assert (raises-error? (nsubstitute #\b #\a string :start 4 :end 2)))
 836  (reset)
 837  (assert (raises-error? (nsubstitute #\b #\a string :start 6 :end 9)))
 838  (reset)
 839  (assert (string= (nsubstitute-if #\b #'alpha-char-p string
 840                                   :start 0 :end 5)
 841                   "bbbbb"))
 842  (reset)
 843  (assert (string= (nsubstitute-if #\c #'alpha-char-p string
 844                                   :start 0 :end nil)
 845                   "ccccc"))
 846  (reset)
 847  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 848                                         :start 0 :end 6)))
 849  (reset)
 850  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 851                                         :start (opaque-identity -1) :end 5)))
 852  (reset)
 853  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 854                                         :start 4 :end 2)))
 855  (reset)
 856  (assert (raises-error? (nsubstitute-if #\b #'alpha-char-p string
 857                                         :start 6 :end 9)))
 858  (reset)
 859  (assert (string= (nsubstitute-if-not #\b #'alpha-char-p string
 860                                       :start 0 :end 5)
 861                   "aaaaa"))
 862  (reset)
 863  (assert (string= (nsubstitute-if-not #\c #'alpha-char-p string
 864                                       :start 0 :end nil)
 865                   "aaaaa"))
 866  (reset)
 867  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 868                                             :start 0 :end 6)))
 869  (reset)
 870  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 871                                             :start (opaque-identity -1) :end 5)))
 872  (reset)
 873  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 874                                             :start 4 :end 2)))
 875  (reset)
 876  (assert (raises-error? (nsubstitute-if-not #\b #'alpha-char-p string
 877                                             :start 6 :end 9))))
 878 ;;; Function WRITE-STRING, WRITE-LINE
 879 (sequence-bounding-indices-test
 880  (format t "~&/Function WRITE-STRING, WRITE-LINE")
 881  (write-string string *standard-output* :start 0 :end 5)
 882  (write-string string *standard-output* :start 0 :end nil)
 883  (assert (raises-error? (write-string string *standard-output*
 884                                       :start 0 :end 6)))
 885  (assert (raises-error? (write-string string *standard-output*
 886                                       :start (opaque-identity -1) :end 5)))
 887  (assert (raises-error? (write-string string *standard-output*
 888                                       :start 4 :end 2)))
 889  (assert (raises-error? (write-string string *standard-output*
 890                                       :start 6 :end 9)))
 891  (write-line string *standard-output* :start 0 :end 5)
 892  (write-line string *standard-output* :start 0 :end nil)
 893  (assert (raises-error? (write-line string *standard-output*
 894                                       :start 0 :end 6)))
 895  (assert (raises-error? (write-line string *standard-output*
 896                                       :start (opaque-identity -1) :end 5)))
 897  (assert (raises-error? (write-line string *standard-output*
 898                                       :start 4 :end 2)))
 899  (assert (raises-error? (write-line string *standard-output*
 900                                       :start 6 :end 9))))
 901
 902 ;;; Macro WITH-INPUT-FROM-STRING
 903 (sequence-bounding-indices-test
 904  (format t "~&/Macro WITH-INPUT-FROM-STRING")
 905  (with-input-from-string (s string :start 0 :end 5)
 906    (assert (char= (read-char s) #\a)))
 907  (with-input-from-string (s string :start 0 :end nil)
 908    (assert (char= (read-char s) #\a)))
 909  (assert (raises-error?
 910           (with-input-from-string (s string :start 0 :end 6)
 911             (read-char s))))
 912  (assert (raises-error?
 913           (with-input-from-string (s string :start (opaque-identity -1) :end 5)
 914             (read-char s))))
 915  (assert (raises-error?
 916           (with-input-from-string (s string :start 4 :end 2)
 917             (read-char s))))
 918  (assert (raises-error?
 919           (with-input-from-string (s string :start 6 :end 9)
 920             (read-char s)))))
 921 \f
 922 ;;; testing bit-bashing according to _The Practice of Programming_
 923 (defun fill-bytes-for-testing (bitsize)
 924   "Return a list of 'bytes' of type (MOD BITSIZE)."
 925   (remove-duplicates (list 0
 926                            (1- (ash 1 (1- bitsize)))
 927                            (ash 1 (1- bitsize))
 928                            (1- (ash 1 bitsize)))))
 929
 930 (defun fill-with-known-value (value size &rest vectors)
 931   (dolist (vec vectors)
 932     (dotimes (i size)
 933       (setf (aref vec i) value))))
 934
 935 (defun collect-fill-amounts (n-power)
 936   (remove-duplicates
 937    (loop for i from 0 upto n-power
 938          collect (1- (expt 2 i))
 939          collect (expt 2 i)
 940          collect (1+ (expt 2 i)))))
 941
 942 (defun test-fill-bashing (bitsize padding-amount n-power)
 943   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
 944          (standard (make-array size :element-type `(unsigned-byte ,bitsize)))
 945          (bashed (make-array size :element-type `(unsigned-byte ,bitsize)))
 946          (fill-amounts (collect-fill-amounts n-power))
 947          (bash-function (intern (format nil "UB~A-BASH-FILL" bitsize)
 948                                 (find-package "SB-KERNEL"))))
 949     (format t "~&/Function ~A..." bash-function)
 950     (loop for offset from padding-amount below (* 2 padding-amount) do
 951           (dolist (c (fill-bytes-for-testing bitsize))
 952             (dolist (n fill-amounts)
 953               (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) n
 954                                      standard bashed)
 955               ;; fill vectors
 956               ;; a) the standard slow way
 957               (fill standard c :start offset :end (+ offset n))
 958               ;; b) the blazingly fast way
 959               (let ((value (loop for i from 0 by bitsize
 960                                  until (= i sb-vm:n-word-bits)
 961                                  sum (ash c i))))
 962                 (funcall bash-function value bashed offset n))
 963               ;; check for errors
 964               (when (mismatch standard bashed)
 965                 (format t "Test with offset ~A, fill ~A and length ~A failed.~%"
 966                         offset c n)
 967                 (format t "Mismatch: ~A ~A~%"
 968                         (subseq standard 0 (+ offset n 1))
 969                         (subseq bashed 0 (+ offset n 1)))
 970                 (return-from test-fill-bashing nil))))
 971           finally (return t))))
 972
 973 (defun test-copy-bashing (bitsize padding-amount n-power)
 974   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
 975          (standard-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
 976          (bashed-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
 977          (source (make-array size :element-type `(unsigned-byte ,bitsize)))
 978          (fill-amounts (collect-fill-amounts n-power))
 979          (bash-function (intern (format nil "UB~A-BASH-COPY" bitsize)
 980                                 (find-package "SB-KERNEL"))))
 981     (format t "~&/Function ~A..." bash-function)
 982     (do ((source-offset padding-amount (1+ source-offset)))
 983         ((>= source-offset (* padding-amount 2))
 984          ;; success!
 985          t)
 986      (do ((target-offset padding-amount (1+ target-offset)))
 987          ((>= target-offset (* padding-amount 2)))
 988        (dolist (c (fill-bytes-for-testing bitsize))
 989          (dolist (n fill-amounts)
 990            (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) size
 991                                   source standard-dst bashed-dst)
 992            ;; fill with test data
 993            (fill source c :start source-offset :end (+ source-offset n))
 994            ;; copy filled test data to test vectors
 995            ;; a) the slow way
 996            (replace standard-dst source
 997                     :start1 target-offset :end1 (+ target-offset n)
 998                     :start2 source-offset :end2 (+ source-offset n))
 999            ;; b) the blazingly fast way
1000            (funcall bash-function source source-offset
1001                     bashed-dst target-offset n)
1002            ;; check for errors
1003            (when (mismatch standard-dst bashed-dst)
1004              (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1005                      target-offset source-offset c n)
1006              (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1007                      standard-dst
1008                      bashed-dst)
1009              (return-from test-copy-bashing nil))))))))
1010
1011 ;; Too slow for the interpreter
1012 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1013 (loop for i = 1 then (* i 2) do
1014      ;; the bare '13' here is fairly arbitrary, except that it's been
1015      ;; reduced from '32', which made the tests take aeons; '8' provides
1016      ;; a good range of lengths over which to fill and copy, which
1017      ;; should tease out most errors in the code (if any exist).  (It
1018      ;; also makes this part of the test suite finish reasonably
1019      ;; quickly.)
1020      (assert (time (test-fill-bashing i 13 8)))
1021      (assert (time (test-copy-bashing i 13 8)))
1022      until (= i sb-vm:n-word-bits))
1023
1024 (defun test-inlined-bashing (bitsize)
1025   ;; We have to compile things separately for each bitsize so the
1026   ;; compiler will work out the array type and trigger the REPLACE
1027   ;; transform.
1028   (let ((lambda-form
1029          `(lambda ()
1030             (let* ((n-elements-per-word ,(truncate sb-vm:n-word-bits bitsize))
1031                    (size (* 3 n-elements-per-word))
1032                    (standard-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1033                    (bashed-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1034                    (source (make-array size :element-type '(unsigned-byte ,bitsize))))
1035               (declare (type (simple-array (unsigned-byte ,bitsize) (*))
1036                              source standard-dst bashed-dst))
1037               (do ((i 0 (1+ i))
1038                    (offset n-elements-per-word (1+ offset)))
1039                   ((>= offset (* 2 n-elements-per-word)) t)
1040                 (dolist (c (fill-bytes-for-testing ,bitsize))
1041                   (fill-with-known-value (mod (lognot c) (ash 1 ,bitsize)) size
1042                                          source standard-dst bashed-dst)
1043                   ;; fill with test-data
1044                   (fill source c :start offset :end (+ offset n-elements-per-word))
1045                   ;; copy filled data to test vectors
1046                   ;;
1047                   ;; a) the slow way (which is actually fast, since this
1048                   ;; should be transformed into UB*-BASH-COPY)
1049                   (replace standard-dst source
1050                            :start1 (- offset n-elements-per-word i)
1051                            :start2 (- offset n-elements-per-word i)
1052                            :end1 offset :end2 offset)
1053                   ;; b) the fast way--we fold the
1054                   ;; :START{1,2} arguments above ourselves
1055                   ;; to trigger the REPLACE transform
1056                   (replace bashed-dst source
1057                            :start1 0 :start2 0 :end1 offset :end2 offset)
1058                   ;; check for errors
1059                   (when (or (mismatch standard-dst bashed-dst)
1060                             ;; trigger COPY-SEQ transform
1061                             (mismatch (copy-seq standard-dst) bashed-dst)
1062                             ;; trigger SUBSEQ transform
1063                             (mismatch (subseq standard-dst (- offset n-elements-per-word i))
1064                                       bashed-dst))
1065                     (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1066                             0 0 c offset)
1067                     (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1068                             standard-dst
1069                             bashed-dst)
1070                     (return-from nil nil))))))))
1071     (funcall (compile nil lambda-form))))
1072
1073 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1074 (loop for i = 1 then (* i 2) do
1075       (assert (test-inlined-bashing i))
1076       until (= i sb-vm:n-word-bits))
1077 \f
1078 ;;; tests from the Sacla test suite via Eric Marsden, 2007-05-07
1079 (remove-duplicates (vector 1 2 2 1) :test-not (lambda (a b) (not (= a b))))
1080
1081 (delete-duplicates (vector #\a #\b #\c #\a)
1082                    :test-not (lambda (a b) (not (char-equal a b))))
1083 \f
1084 ;;; success