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 "test-util.lisp")
  17 (load "assertoid.lisp")
  18
  19 (defpackage :seq-test
  20   (:use :cl :assertoid :test-util))
  21
  22 (in-package :seq-test)
  23
  24 ;;; user-defined mock sequence class for testing generic versions of
  25 ;;; sequence functions.
  26 (defclass list-backed-sequence (standard-object
  27                                 sequence)
  28   ((elements :initarg :elements :type list :accessor %elements)))
  29
  30 (defmethod sequence:make-sequence-like ((sequence list-backed-sequence) length
  31                                         &rest args &key
  32                                         initial-element initial-contents)
  33   (declare (ignore initial-element initial-contents))
  34   (make-instance 'list-backed-sequence
  35                  :elements (apply #'sequence:make-sequence-like
  36                                   '() length args)))
  37
  38 (defmethod sequence:length ((sequence list-backed-sequence))
  39   (length (%elements sequence)))
  40
  41 (defmethod sequence:elt
  42     ((sequence list-backed-sequence) index)
  43   (nth index (%elements sequence)))
  44
  45 (defmethod (setf sequence:elt)
  46     (new-value (sequence list-backed-sequence) index)
  47   (setf (nth index (%elements sequence)) new-value))
  48
  49 ;;; helper functions for exercising SEQUENCE code on data of many
  50 ;;; specialized types, and in many different optimization scenarios
  51 (defun for-every-seq-1 (base-seq snippet)
  52   (labels
  53       ((entirely (eltype)
  54          (every (lambda (el) (typep el eltype)) base-seq))
  55        (make-sequence-for-type (type)
  56          (etypecase type
  57            ((member list list-backed-sequence)
  58             (coerce base-seq type))
  59            ((cons (eql simple-array) (cons * (cons (eql 1) null)))
  60             (destructuring-bind (eltype one) (rest type)
  61               (declare (ignore one))
  62               (when (entirely eltype)
  63                 (coerce base-seq type))))
  64            ((cons (eql vector))
  65             (destructuring-bind (eltype) (rest type)
  66               (when (entirely eltype)
  67                 (let ((initial-element
  68                         (cond ((subtypep eltype 'character)
  69                                #\!)
  70                               ((subtypep eltype 'number)
  71                                0)
  72                                 (t #'error))))
  73                   (replace (make-array
  74                             (+ (length base-seq)
  75                                (random 3))
  76                             :element-type eltype
  77                             :fill-pointer
  78                             (length base-seq)
  79                             :initial-element
  80                             initial-element)
  81                            base-seq))))))))
  82     (dolist (seq-type '(list
  83                         (simple-array t 1)
  84                         (vector t)
  85                         (simple-array character 1)
  86                         (vector character)
  87                         (simple-array (signed-byte 4) 1)
  88                         (vector (signed-byte 4))
  89                         list-backed-sequence))
  90       (dolist (declaredness '(nil t))
  91         (dolist (optimization '(((speed 3) (space 0))
  92                                 ((speed 2) (space 2))
  93                                 ((speed 1) (space 2))
  94                                 ((speed 0) (space 1))))
  95           (let ((seq (make-sequence-for-type seq-type))
  96                 (lambda-expr `(lambda (seq)
  97                                 (declare (sb-ext:muffle-conditions
  98                                           sb-ext:compiler-note))
  99                                 ,@(when declaredness
 100                                     `((declare (type ,seq-type seq))))
 101                                 (declare (optimize ,@optimization))
 102                                 ,snippet)))
 103             (when (not seq)
 104               (return))
 105             ;(format t "~&~S~%" lambda-expr)
 106             (let ((fun (checked-compile lambda-expr)))
 107               ;(format t "~&~S ~S~%~S~%~S ~S~%"
 108               ;        base-seq snippet seq-type declaredness optimization)
 109               ;(format t "~&(TYPEP SEQ 'SIMPLE-ARRAY)=~S~%"
 110               ;        (typep seq 'simple-array))
 111               (unless (funcall fun seq)
 112                 (error "~@<failed test:~2I ~_BASE-SEQ=~S ~_SNIPPET=~S ~_SEQ-TYPE=~S ~_DECLAREDNESS=~S ~_OPTIMIZATION=~S~:@>"
 113                        base-seq
 114                        snippet
 115                        seq-type
 116                        declaredness
 117                        optimization)))))))))
 118 (defun for-every-seq (base-seq snippets)
 119   (dolist (snippet snippets)
 120     (for-every-seq-1 base-seq snippet)))
 121
 122 ;;; a wrapper to hide declared type information from the compiler, so
 123 ;;; we don't get stopped by compiler warnings about e.g. compiling
 124 ;;; (POSITION 1 #() :KEY #'ABS) when #() has been coerced to a string.
 125 (defun indiscriminate (fun)
 126   (lambda (&rest rest) (apply fun rest)))
 127
 128 ;;; asymmetric test arg order example from ANSI FIND definition page
 129 (assert (eql #\space ; original example, depends on ASCII character ordering
 130              (find #\d "here are some letters that can be looked at"
 131                    :test #'char>)))
 132 (assert (eql #\e ; modified example, depends only on standard a-z ordering
 133              (find #\f "herearesomeletters" :test #'char>)))
 134 (assert (eql 4 ; modified more, avoids charset technicalities completely
 135              (find 5 '(6 4) :test '>)))
 136
 137 (with-test (:name sequence:emptyp)
 138   (for-every-seq #()
 139     '((eq t (sequence:emptyp seq))))
 140   (for-every-seq #(1)
 141     '((eq nil (sequence:emptyp seq)))))
 142
 143 ;;; tests of FIND, POSITION, FIND-IF, and POSITION-IF (and a few for
 144 ;;; deprecated FIND-IF-NOT and POSITION-IF-NOT too)
 145 (for-every-seq #()
 146   '((null (find 1 seq))
 147     (null (find 1 seq :from-end t))
 148     (null (position 1 seq :key (indiscriminate #'abs)))
 149     (null (position nil seq :test (constantly t)))
 150     (null (position nil seq :test nil))
 151     (null (position nil seq :test-not nil))
 152     (null (find-if #'1+ seq :key (indiscriminate #'log)))
 153     (null (position-if #'identity seq :from-end t))
 154     (null (find-if-not #'packagep seq))
 155     (null (position-if-not #'packagep seq :key nil))))
 156 (for-every-seq #(1)
 157   '((null (find 2 seq))
 158     ;; Get the argument ordering for asymmetric tests like #'> right.
 159     ;; (bug reported and fixed by Alexey Dejneka sbcl-devel 2001-10-17)
 160     (eql 1 (find 2 seq :test #'>))
 161     (find 2 seq :key #'1+)
 162     (find 1 seq :from-end t)
 163     (null (find 1 seq :from-end t :start 1))
 164     (null (find 0 seq :from-end t))
 165     (eql 0 (position 1 seq :key #'abs))
 166     (null (position nil seq :test 'equal))
 167     (eql 1 (find-if #'1- seq :key #'log))
 168     (eql 0 (position-if #'identity seq :from-end t))
 169     (null (find-if-not #'sin seq))
 170     (eql 0 (position-if-not #'packagep seq :key 'identity))))
 171 (for-every-seq #(1 2 3 2 1)
 172   '((find 3 seq)
 173     (find 3 seq :from-end 'yes)
 174     (eql 1 (position 1.5 seq :test #'<))
 175     (eql 0 (position 0 seq :key '1-))
 176     (eql 4 (position 0 seq :key '1- :from-end t))
 177     (eql 2 (position 4 seq :key '1+))
 178     (eql 2 (position 4 seq :key '1+ :from-end t))
 179     (eql 1 (position 2 seq))
 180     (eql 1 (position 2 seq :start 1))
 181     (null (find 2 seq :start 1 :end 1))
 182     (eql 3 (position 2 seq :start 2))
 183     (eql 3 (position 2 seq :key nil :from-end t))
 184     (eql 2 (position 3 seq :test '=))
 185     (eql 0 (position 3 seq :test-not 'equalp))
 186     (eql 2 (position 3 seq :test 'equal :from-end t))
 187     (null (position 4 seq :test #'eql))
 188     (null (find-if #'packagep seq))
 189     (eql 1 (find-if #'plusp seq))
 190     (eql 3 (position-if #'plusp seq :key #'1- :from-end t))
 191     (eql 1 (position-if #'evenp seq))
 192     (eql 3 (position-if #'evenp seq :from-end t))
 193     (eql 2 (position-if #'plusp seq :from-end nil :key '1- :start 2))
 194     (eql 3 (position-if #'plusp seq :from-end t :key '1- :start 2))
 195     (null (position-if #'plusp seq :from-end t :key '1- :start 2 :end 2))
 196     (null (find-if-not #'plusp seq))
 197     (eql 0 (position-if-not #'evenp seq))
 198     (eql 0 (search #(1) seq))
 199     (eql 1 (search #(4 5) seq :key 'oddp))
 200     (eql 1 (search #(-2) seq :test (lambda (a b) (= (- a) b))))
 201     (eql 4 (search #(1) seq :start2 1))
 202     (null (search #(3) seq :start2 3))
 203     (eql 2 (search #(3) seq :start2 2))
 204     (eql 0 (search #(1 2) seq))
 205     (null (search #(2 1 3) seq))
 206     (eql 0 (search #(0 1 2 4) seq :start1 1 :end1 3))
 207     (eql 3 (search #(0 2 1 4) seq :start1 1 :end1 3))
 208     (eql 4 (search #(1) seq :from-end t))
 209     (eql 0 (search #(1 2) seq :from-end t))
 210     (null (search #(1 2) seq :from-end t :start2 1))
 211     (eql 0 (search #(0 1 2 4) seq :from-end t :start1 1 :end1 3))
 212     (eql 3 (search #(0 2 1 4) seq :from-end t :start1 1 :end1 3))
 213     (null (search #(2 1 3) seq :from-end t))))
 214 (for-every-seq "string test"
 215   '((null (find 0 seq))
 216     (null (find #\D seq :key #'char-upcase))
 217     (find #\E seq :key #'char-upcase)
 218     (null (find #\e seq :key #'char-upcase))
 219     (eql 3 (position #\i seq))
 220     (eql 0 (position #\s seq :key #'char-downcase))
 221     (eql 1 (position #\s seq :key #'char-downcase :test #'char/=))
 222     (eql 9 (position #\s seq :from-end t :test #'char=))
 223     (eql 10 (position #\s seq :from-end t :test #'char/=))
 224     (eql 4 (position #\N seq :from-end t :key 'char-upcase :test #'char-equal))
 225     (eql 5 (position-if (lambda (c) (equal #\g c)) seq))
 226     (eql 5 (position-if (lambda (c) (equal #\g c)) seq :from-end t))
 227     (find-if #'characterp seq)
 228     (find-if (lambda (c) (typep c 'base-char)) seq :from-end t)
 229     (null (find-if 'upper-case-p seq))))
 230
 231 ;;; SUBSEQ
 232 (with-test (:name :subseq)
 233   (let ((avec (make-array 10
 234                           :fill-pointer 4
 235                           :initial-contents '(0 1 2 3 iv v vi vii iix ix))))
 236     ;; These first five always worked AFAIK.
 237     (assert (equalp (subseq avec 0 3) #(0 1 2)))
 238     (assert (equalp (subseq avec 3 3) #()))
 239     (assert (equalp (subseq avec 1 3) #(1 2)))
 240     (assert (equalp (subseq avec 1) #(1 2 3)))
 241     (assert (equalp (subseq avec 1 4) #(1 2 3)))
 242     ;; SBCL bug found ca. 2002-05-01 by OpenMCL's correct handling of
 243     ;; SUBSEQ, CSR's driving portable cross-compilation far enough to
 244     ;; reach the SUBSEQ calls in assem.lisp, and WHN's sleazy
 245     ;; translation of old CMU CL new-assem.lisp into sufficiently grotty
 246     ;; portable Lisp that it passed suitable illegal values to SUBSEQ to
 247     ;; exercise the bug:-|
 248     ;;
 249     ;; SUBSEQ should check its END value against logical LENGTH, not
 250     ;; physical ARRAY-DIMENSION 0.
 251     ;;
 252     ;; fixed in sbcl-0.7.4.22 by WHN
 253     (assert (null (ignore-errors (aref (subseq avec 1 5) 0))))))
 254
 255 ;;; FILL
 256 (defun test-fill-typecheck (x)
 257   (declare (optimize (safety 3) (space 2) (speed 1)))
 258   (fill (make-string 10) x))
 259
 260 (assert (string= (test-fill-typecheck #\@) "@@@@@@@@@@"))
 261 ;;; BUG 186, fixed in sbcl-0.7.5.5
 262 (assert (null (ignore-errors (test-fill-typecheck 4097))))
 263
 264 ;;; MAKE-SEQUENCE, COERCE, CONCATENATE, MERGE, MAP and requested
 265 ;;; result type (BUGs 46a, 46b, 66)
 266 (with-test (:name :sequence-functions)
 267   (macrolet ((assert-type-error (form)
 268                `(assert-error ,form type-error)))
 269     (dolist (type-stub '((simple-vector)
 270                          (vector *)
 271                          (vector (signed-byte 8))
 272                          (vector (unsigned-byte 16))
 273                          (vector (signed-byte 32))
 274                          (simple-bit-vector)))
 275       (declare (optimize safety))
 276       (format t "~&~S~%" type-stub)
 277       ;; MAKE-SEQUENCE
 278       (assert (= (length (make-sequence `(,@type-stub) 10)) 10))
 279       (assert (= (length (make-sequence `(,@type-stub 10) 10)) 10))
 280       (assert-type-error (make-sequence `(,@type-stub 10) 11))
 281       ;; COERCE
 282       (assert (= (length (coerce '(0 0 0) `(,@type-stub))) 3))
 283       (assert (= (length (coerce #(0 0 0) `(,@type-stub 3))) 3))
 284       (assert-type-error (coerce #*111 `(,@type-stub 4)))
 285       ;; CONCATENATE
 286       (assert (= (length (concatenate `(,@type-stub) #(0 0 0) #*111)) 6))
 287       (assert (equalp (concatenate `(,@type-stub) #(0 0 0) #*111)
 288                       (coerce #(0 0 0 1 1 1) `(,@type-stub))))
 289       (assert (= (length (concatenate `(,@type-stub 6) #(0 0 0) #*111)) 6))
 290       (assert (equalp (concatenate `(,@type-stub 6) #(0 0 0) #*111)
 291                       (coerce #(0 0 0 1 1 1) `(,@type-stub 6))))
 292       (assert-type-error (concatenate `(,@type-stub 5) #(0 0 0) #*111))
 293       ;; MERGE
 294       (macrolet ((test (type)
 295                    `(merge ,type (copy-seq #(0 1 0)) (copy-seq #*111) #'>)))
 296         (assert (= (length (test `(,@type-stub))) 6))
 297         (assert (equalp (test `(,@type-stub))
 298                         (coerce #(1 1 1 0 1 0) `(,@type-stub))))
 299         (assert (= (length (test `(,@type-stub 6))) 6))
 300         (assert (equalp (test `(,@type-stub 6))
 301                         (coerce #(1 1 1 0 1 0) `(,@type-stub 6))))
 302         (assert-type-error (test `(,@type-stub 4))))
 303       ;; MAP
 304       (assert (= (length (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))) 4))
 305       (assert (equalp (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))
 306                       (coerce #(0 1 1 0) `(,@type-stub))))
 307       (assert (= (length (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1)))
 308                  4))
 309       (assert (equalp (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1))
 310                       (coerce #(0 1 1 0) `(,@type-stub 4))))
 311       (assert-type-error (map `(,@type-stub 5) #'logxor #(0 0 1 1) '(0 1 0 1))))
 312     ;; some more CONCATENATE tests for strings
 313     (locally
 314         (declare (optimize safety))
 315       (assert (string= (concatenate 'string "foo" " " "bar") "foo bar"))
 316       (assert (string= (concatenate '(string 7) "foo" " " "bar") "foo bar"))
 317       (assert-type-error (concatenate '(string 6) "foo" " " "bar"))
 318       (assert (string= (concatenate '(string 6) "foo" #(#\b #\a #\r)) "foobar"))
 319       (assert (string= (concatenate '(string 6) #(#\b #\a #\r) "foo") "barfoo"))
 320       (assert-type-error (concatenate '(string 7) "foo" #(#\b #\a #\r))))
 321     ;; Non-VECTOR ARRAY types aren't allowed as vector type specifiers.
 322     (locally
 323         (declare (optimize safety))
 324       (assert-type-error (concatenate 'simple-array "foo" "bar"))
 325       (assert-type-error (map 'simple-array #'identity '(1 2 3)))
 326       (assert (equalp #(11 13)
 327                       (map '(simple-array fixnum (*)) #'+ '(1 2 3) '(10 11))))
 328       (assert-type-error (coerce '(1 2 3) 'simple-array))
 329       (assert-type-error (merge 'simple-array (list 1 3) (list 2 4) '<))
 330       (assert (equalp #(3 2 1) (coerce '(3 2 1) '(vector fixnum))))
 331       (assert-type-error (map 'array #'identity '(1 2 3)))
 332       (assert-type-error (map '(array fixnum) #'identity '(1 2 3)))
 333       (assert (equalp #(1 2 3) (coerce '(1 2 3) '(vector fixnum))))
 334       ;; but COERCE has an exemption clause:
 335       (assert (string= "foo" (coerce "foo" 'simple-array)))
 336       ;; ... though not in all cases.
 337       (assert-type-error (coerce '(#\f #\o #\o) 'simple-array)))))
 338
 339 ;; CONCATENATE used to fail for generic sequences for result-type NULL.
 340 (with-test (:name (concatenate :result-type-null :bug-1162301))
 341   (assert (sequence:emptyp (concatenate 'null)))
 342
 343   (for-every-seq #()
 344     '((sequence:emptyp (concatenate 'null seq))
 345       (sequence:emptyp (concatenate 'null seq seq))
 346       (sequence:emptyp (concatenate 'null seq #()))
 347       (sequence:emptyp (concatenate 'null seq ""))))
 348
 349   (for-every-seq #(1)
 350     (mapcar (lambda (form)
 351               `(typep (nth-value 1 (ignore-errors ,form)) 'type-error))
 352             '((concatenate 'null seq)
 353               (concatenate 'null seq seq)
 354               (concatenate 'null seq #())
 355               (concatenate 'null seq "2")))))
 356
 357 ;;; As pointed out by Raymond Toy on #lisp IRC, MERGE had some issues
 358 ;;; with user-defined types until sbcl-0.7.8.11
 359 (deftype list-typeoid () 'list)
 360 (with-test (:name :merge-user-types)
 361  (assert (equal '(1 2 3 4) (merge 'list-typeoid (list 1 3) (list 2 4) '<)))
 362 ;;; and also with types that weren't precicely LIST
 363  (assert (equal '(1 2 3 4) (merge 'cons (list 1 3) (list 2 4) '<))))
 364
 365 ;;; but wait, there's more! The NULL and CONS types also have implicit
 366 ;;; length requirements:
 367 (with-test (:name :sequence-functions-list-types)
 368   (macrolet ((assert-type-error (form)
 369                `(assert (typep (nth-value 1 (ignore-errors ,form))
 370                                'type-error))))
 371     (locally
 372         (declare (optimize safety))
 373       ;; MAKE-SEQUENCE
 374       (assert-type-error (make-sequence 'cons 0))
 375       (assert-type-error (make-sequence 'null 1))
 376       (assert-type-error (make-sequence '(cons t null) 0))
 377       (assert-type-error (make-sequence '(cons t null) 2))
 378       ;; KLUDGE: I'm not certain that this test actually tests for what
 379       ;; it should test, in that the type deriver and optimizers might
 380       ;; be too smart for the good of an exhaustive test system.
 381       ;; However, it makes me feel good.  -- CSR, 2002-10-18
 382       (assert (null (make-sequence 'null 0)))
 383       (assert (= (length (make-sequence 'cons 3)) 3))
 384       (assert (= (length (make-sequence '(cons t null) 1)) 1))
 385       ;; and NIL is not a valid type for MAKE-SEQUENCE
 386       (assert-type-error (make-sequence 'nil 0))
 387       ;; COERCE
 388       (assert-type-error (coerce #(1) 'null))
 389       (assert-type-error (coerce #() 'cons))
 390       (assert-type-error (coerce #() '(cons t null)))
 391       (assert-type-error (coerce #(1 2) '(cons t null)))
 392       (assert (null (coerce #() 'null)))
 393       (assert (= (length (coerce #(1) 'cons)) 1))
 394       (assert (= (length (coerce #(1) '(cons t null))) 1))
 395       (assert-type-error (coerce #() 'nil))
 396       ;; MERGE
 397       (assert-type-error (merge 'null (list 1 3) (list 2 4) '<))
 398       (assert-type-error (merge 'cons () () '<))
 399       (assert (null (merge 'null () () '<)))
 400       (assert (= (length (merge 'cons (list 1 3) (list 2 4) '<)) 4))
 401       (assert (= (length (merge '(cons t (cons t (cons t (cons t null))))
 402                                 (list 1 3) (list 2 4)
 403                                 '<))
 404                  4))
 405       (assert-type-error (merge 'nil () () '<))
 406       ;; CONCATENATE
 407       (assert-type-error (concatenate 'cons #() ()))
 408       (assert-type-error (concatenate '(cons t null) #(1 2 3) #(4 5 6)))
 409       (assert (= (length (concatenate 'cons #() '(1) "2 3")) 4))
 410       (assert (= (length (concatenate '(cons t cons) '(1) "34")) 3))
 411       (assert-type-error (concatenate 'nil '(3)))
 412       ;; FIXME: tests for MAP to come when some brave soul implements
 413       ;; the analogous type checking for MAP/%MAP.
 414       )))
 415 \f
 416 ;;; ELT should signal an error of type TYPE-ERROR if its index
 417 ;;; argument isn't a valid sequence index for sequence:
 418 (defun test-elt-signal (x)
 419   (elt x 3))
 420 (assert-error (test-elt-signal "foo") type-error)
 421 (assert (eql (test-elt-signal "foob") #\b))
 422 (locally
 423     (declare (optimize (safety 3)))
 424   (assert-error (elt (list 1 2 3) 3) type-error))
 425 \f
 426 ;;; confusion in the refactoring led to this signalling an unbound
 427 ;;; variable, not a type error.
 428 (defun svrefalike (x)
 429   (svref x 0))
 430 (assert-error (svrefalike #*0) type-error)
 431 \f
 432 ;;; checks for uniform bounding index handling.
 433 ;;;
 434 ;;; This used to be SAFETY 3 only, but bypassing these checks with
 435 ;;; above-zero speed when SPEED > SAFETY is not The SBCL Way.
 436 ;;;
 437 ;;; KLUDGE: not all in one big form because that causes SBCL to spend
 438 ;;; an absolute age trying to compile it.
 439 (defmacro sequence-bounding-indices-test (&body body)
 440   `(progn
 441      (locally
 442     ;; See Issues 332 [and 333(!)] in the CLHS
 443     (declare (optimize (speed 3) (safety 1)))
 444     (let ((string (make-array 10
 445                               :fill-pointer 5
 446                               :initial-element #\a
 447                               :element-type 'base-char)))
 448         ,(car body)
 449         (format t "... BASE-CHAR")
 450         (finish-output)
 451         (flet ((reset ()
 452                  (setf (fill-pointer string) 10)
 453                  (fill string #\a)
 454                  (setf (fill-pointer string) 5)))
 455           (declare (ignorable #'reset))
 456           ,@(cdr body))))
 457     (locally
 458       ;; See Issues 332 [and 333(!)] in the CLHS
 459       (declare (optimize (speed 3) (safety 1)))
 460       (let ((string (make-array 10
 461                                 :fill-pointer 5
 462                                 :initial-element #\a
 463                                 :element-type 'character)))
 464         ,(car body)
 465         (format t "... CHARACTER")
 466         (finish-output)
 467       (flet ((reset ()
 468                (setf (fill-pointer string) 10)
 469                (fill string #\a)
 470                (setf (fill-pointer string) 5)))
 471         (declare (ignorable #'reset))
 472           ,@(cdr body))))))
 473
 474 (declaim (notinline opaque-identity))
 475 (defun opaque-identity (x) x)
 476 ;;; Accessor SUBSEQ
 477 (sequence-bounding-indices-test
 478  (format t "~&/Accessor SUBSEQ")
 479  (assert (string= (subseq string 0 5) "aaaaa"))
 480  (assert-error (subseq string 0 6))
 481  (assert-error (subseq string (opaque-identity -1) 5))
 482  (assert-error (subseq string 4 2))
 483  (assert-error (subseq string 6))
 484  (assert (string= (setf (subseq string 0 5) "abcde") "abcde"))
 485  (assert (string= (subseq string 0 5) "abcde"))
 486  (reset)
 487  (assert-error (setf (subseq string 0 6) "abcdef"))
 488  (assert-error (setf (subseq string (opaque-identity -1) 5) "abcdef"))
 489  (assert-error (setf (subseq string 4 2) ""))
 490  (assert-error (setf (subseq string 6) "ghij")))
 491
 492 ;;; Function COUNT, COUNT-IF, COUNT-IF-NOT
 493 (sequence-bounding-indices-test
 494  (format t "~&/Function COUNT, COUNT-IF, COUNT-IF-NOT")
 495  (assert (= (count #\a string :start 0 :end nil) 5))
 496  (assert (= (count #\a string :start 0 :end 5) 5))
 497  (assert-error (count #\a string :start 0 :end 6))
 498  (assert-error (count #\a string :start (opaque-identity -1) :end 5))
 499  (assert-error (count #\a string :start 4 :end 2))
 500  (assert-error (count #\a string :start 6 :end 9))
 501  (assert (= (count-if #'alpha-char-p string :start 0 :end nil) 5))
 502  (assert (= (count-if #'alpha-char-p string :start 0 :end 5) 5))
 503  (assert-error
 504   (count-if #'alpha-char-p string :start 0 :end 6))
 505  (assert-error
 506   (count-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 507  (assert-error
 508   (count-if #'alpha-char-p string :start 4 :end 2))
 509  (assert-error
 510   (count-if #'alpha-char-p string :start 6 :end 9))
 511  (assert (= (count-if-not #'alpha-char-p string :start 0 :end nil) 0))
 512  (assert (= (count-if-not #'alpha-char-p string :start 0 :end 5) 0))
 513  (assert-error
 514   (count-if-not #'alpha-char-p string :start 0 :end 6))
 515  (assert-error
 516   (count-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 517  (assert-error
 518   (count-if-not #'alpha-char-p string :start 4 :end 2))
 519  (assert-error
 520   (count-if-not #'alpha-char-p string :start 6 :end 9)))
 521
 522 ;;; Function FILL
 523 (sequence-bounding-indices-test
 524  (format t "~&/Function FILL")
 525  (assert (string= (fill string #\b :start 0 :end 5) "bbbbb"))
 526  (assert (string= (fill string #\c :start 0 :end nil) "ccccc"))
 527  (assert-error (fill string #\d :start 0 :end 6))
 528  (assert-error (fill string #\d :start (opaque-identity -1) :end 5))
 529  (assert-error (fill string #\d :start 4 :end 2))
 530  (assert-error (fill string #\d :start 6 :end 9)))
 531
 532 ;;; Function FIND, FIND-IF, FIND-IF-NOT
 533 (sequence-bounding-indices-test
 534  (format t "~&/Function FIND, FIND-IF, FIND-IF-NOT")
 535  (assert (char= (find #\a string :start 0 :end nil) #\a))
 536  (assert (char= (find #\a string :start 0 :end 5) #\a))
 537  (assert-error (find #\a string :start 0 :end 6))
 538  (assert-error (find #\a string :start (opaque-identity -1) :end 5))
 539  (assert-error (find #\a string :start 4 :end 2))
 540  (assert-error (find #\a string :start 6 :end 9))
 541  (assert (char= (find-if #'alpha-char-p string :start 0 :end nil) #\a))
 542  (assert (char= (find-if #'alpha-char-p string :start 0 :end 5) #\a))
 543  (assert-error
 544   (find-if #'alpha-char-p string :start 0 :end 6))
 545  (assert-error
 546   (find-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 547  (assert-error
 548   (find-if #'alpha-char-p string :start 4 :end 2))
 549  (assert-error
 550   (find-if #'alpha-char-p string :start 6 :end 9))
 551  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end nil) nil))
 552  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end 5) nil))
 553  (assert-error
 554   (find-if-not #'alpha-char-p string :start 0 :end 6))
 555  (assert-error
 556   (find-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 557  (assert-error
 558   (find-if-not #'alpha-char-p string :start 4 :end 2))
 559  (assert-error
 560   (find-if-not #'alpha-char-p string :start 6 :end 9)))
 561
 562 ;;; Function MISMATCH
 563 (sequence-bounding-indices-test
 564  (format t "~&/Function MISMATCH")
 565  (assert (null (mismatch string "aaaaa" :start1 0 :end1 nil)))
 566  (assert (= (mismatch "aaab" string :start2 0 :end2 4) 3))
 567  (assert-error (mismatch "aaaaaa" string :start2 0 :end2 6))
 568  (assert-error (mismatch string "aaaaaa" :start1 (opaque-identity -1) :end1 5))
 569  (assert-error (mismatch string "" :start1 4 :end1 2))
 570  (assert-error (mismatch "aaaa" string :start2 6 :end2 9)))
 571
 572 ;;; Function PARSE-INTEGER
 573 (sequence-bounding-indices-test
 574  (format t "~&/Function PARSE-INTEGER")
 575  (setf (fill-pointer string) 10)
 576  (setf (subseq string 0 10) "1234567890")
 577  (setf (fill-pointer string) 5)
 578  (assert (= (parse-integer string :start 0 :end 5) 12345))
 579  (assert (= (parse-integer string :start 0 :end nil) 12345))
 580  (assert-error (parse-integer string :start 0 :end 6))
 581  (assert-error (parse-integer string :start (opaque-identity -1) :end 5))
 582  (assert-error (parse-integer string :start 4 :end 2))
 583  (assert-error (parse-integer string :start 6 :end 9)))
 584
 585 ;;; Function PARSE-NAMESTRING
 586 (sequence-bounding-indices-test
 587  (format t "~&/Function PARSE-NAMESTRING")
 588  (setf (fill-pointer string) 10)
 589  (setf (subseq string 0 10)
 590        #-win32 "/dev/ /tmp"
 591        #+win32 "C:/   NUL")
 592  (setf (fill-pointer string) 5)
 593  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 594                                      :start 0 :end 5)))
 595  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 596                                      :start 0 :end nil)))
 597  (assert-error (parse-namestring string nil
 598                                  *default-pathname-defaults*
 599                                  :start 0 :end 6))
 600  (assert-error (parse-namestring string nil
 601                                  *default-pathname-defaults*
 602                                  :start (opaque-identity -1) :end 5))
 603  (assert-error (parse-namestring string nil
 604                                  *default-pathname-defaults*
 605                                  :start 4 :end 2))
 606  (assert-error (parse-namestring string nil
 607                                  *default-pathname-defaults*
 608                                  :start 6 :end 9)))
 609
 610 ;;; Function POSITION, POSITION-IF, POSITION-IF-NOT
 611 (sequence-bounding-indices-test
 612  (format t "~&/Function POSITION, POSITION-IF, POSITION-IF-NOT")
 613
 614  (assert (= (position #\a string :start 0 :end nil) 0))
 615  (assert (= (position #\a string :start 0 :end 5) 0))
 616  (assert-error (position #\a string :start 0 :end 6))
 617  (assert-error (position #\a string :start (opaque-identity -1) :end 5))
 618  (assert-error (position #\a string :start 4 :end 2))
 619  (assert-error (position #\a string :start 6 :end 9))
 620  (assert (= (position-if #'alpha-char-p string :start 0 :end nil) 0))
 621  (assert (= (position-if #'alpha-char-p string :start 0 :end 5) 0))
 622  (assert-error
 623   (position-if #'alpha-char-p string :start 0 :end 6))
 624  (assert-error
 625   (position-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 626  (assert-error
 627   (position-if #'alpha-char-p string :start 4 :end 2))
 628  (assert-error
 629   (position-if #'alpha-char-p string :start 6 :end 9))
 630  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end nil) nil))
 631  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end 5) nil))
 632  (assert-error
 633   (position-if-not #'alpha-char-p string :start 0 :end 6))
 634  (assert-error
 635   (position-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 636  (assert-error
 637   (position-if-not #'alpha-char-p string :start 4 :end 2))
 638  (assert-error
 639   (position-if-not #'alpha-char-p string :start 6 :end 9)))
 640
 641 ;;; Function READ-FROM-STRING
 642 (sequence-bounding-indices-test
 643  (format t "~&/Function READ-FROM-STRING")
 644  (setf (subseq string 0 5) "(a b)")
 645  (assert (equal (read-from-string string nil nil :start 0 :end 5) '(a b)))
 646  (assert (equal (read-from-string string nil nil :start 0 :end nil) '(a b)))
 647  (assert-error (read-from-string string nil nil :start 0 :end 6))
 648  (assert-error (read-from-string string nil nil :start (opaque-identity -1) :end 5))
 649  (assert-error (read-from-string string nil nil :start 4 :end 2))
 650  (assert-error (read-from-string string nil nil :start 6 :end 9)))
 651
 652 ;;; Function REDUCE
 653 (sequence-bounding-indices-test
 654  (format t "~&/Function REDUCE")
 655  (setf (subseq string 0 5) "abcde")
 656  (assert (equal (reduce #'list* string :from-end t :start 0 :end nil)
 657                 '(#\a #\b #\c #\d . #\e)))
 658  (assert (equal (reduce #'list* string :from-end t :start 0 :end 5)
 659                 '(#\a #\b #\c #\d . #\e)))
 660  (assert-error (reduce #'list* string :start 0 :end 6))
 661  (assert-error (reduce #'list* string :start (opaque-identity -1) :end 5))
 662  (assert-error (reduce #'list* string :start 4 :end 2))
 663  (assert-error (reduce #'list* string :start 6 :end 9)))
 664
 665 ;;; Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, DELETE, DELETE-IF,
 666 ;;; DELETE-IF-NOT
 667 (sequence-bounding-indices-test
 668  (format t "~&/Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, ...")
 669  (assert (equal (remove #\a string :start 0 :end nil) ""))
 670  (assert (equal (remove #\a string :start 0 :end 5) ""))
 671  (assert-error (remove #\a string :start 0 :end 6))
 672  (assert-error (remove #\a string :start (opaque-identity -1) :end 5))
 673  (assert-error (remove #\a string :start 4 :end 2))
 674  (assert-error (remove #\a string :start 6 :end 9))
 675  (assert (equal (remove-if #'alpha-char-p string :start 0 :end nil) ""))
 676  (assert (equal (remove-if #'alpha-char-p string :start 0 :end 5) ""))
 677  (assert-error
 678   (remove-if #'alpha-char-p string :start 0 :end 6))
 679  (assert-error
 680   (remove-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 681  (assert-error
 682   (remove-if #'alpha-char-p string :start 4 :end 2))
 683  (assert-error
 684   (remove-if #'alpha-char-p string :start 6 :end 9))
 685  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end nil)
 686                 "aaaaa"))
 687  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end 5)
 688                 "aaaaa"))
 689  (assert-error
 690   (remove-if-not #'alpha-char-p string :start 0 :end 6))
 691  (assert-error
 692   (remove-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 693  (assert-error
 694   (remove-if-not #'alpha-char-p string :start 4 :end 2))
 695  (assert-error
 696   (remove-if-not #'alpha-char-p string :start 6 :end 9)))
 697 (sequence-bounding-indices-test
 698  (format t "~&/... DELETE, DELETE-IF, DELETE-IF-NOT")
 699  (assert (equal (delete #\a string :start 0 :end nil) ""))
 700  (reset)
 701  (assert (equal (delete #\a string :start 0 :end 5) ""))
 702  (reset)
 703  (assert-error (delete #\a string :start 0 :end 6))
 704  (reset)
 705  (assert-error (delete #\a string :start (opaque-identity -1) :end 5))
 706  (reset)
 707  (assert-error (delete #\a string :start 4 :end 2))
 708  (reset)
 709  (assert-error (delete #\a string :start 6 :end 9))
 710  (reset)
 711  (assert (equal (delete-if #'alpha-char-p string :start 0 :end nil) ""))
 712  (reset)
 713  (assert (equal (delete-if #'alpha-char-p string :start 0 :end 5) ""))
 714  (reset)
 715  (assert-error
 716   (delete-if #'alpha-char-p string :start 0 :end 6))
 717  (reset)
 718  (assert-error
 719   (delete-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 720  (reset)
 721  (assert-error
 722   (delete-if #'alpha-char-p string :start 4 :end 2))
 723  (reset)
 724  (assert-error
 725   (delete-if #'alpha-char-p string :start 6 :end 9))
 726  (reset)
 727  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end nil)
 728                 "aaaaa"))
 729  (reset)
 730  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end 5)
 731                 "aaaaa"))
 732  (reset)
 733  (assert-error
 734   (delete-if-not #'alpha-char-p string :start 0 :end 6))
 735  (reset)
 736  (assert-error
 737   (delete-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 738  (reset)
 739  (assert-error
 740   (delete-if-not #'alpha-char-p string :start 4 :end 2))
 741  (reset)
 742  (assert-error
 743   (delete-if-not #'alpha-char-p string :start 6 :end 9)))
 744
 745 ;;; Function REMOVE-DUPLICATES, DELETE-DUPLICATES
 746 (sequence-bounding-indices-test
 747  (format t "~&/Function REMOVE-DUPLICATES, DELETE-DUPLICATES")
 748  (assert (string= (remove-duplicates string :start 0 :end 5) "a"))
 749  (assert (string= (remove-duplicates string :start 0 :end nil) "a"))
 750  (assert-error (remove-duplicates string :start 0 :end 6))
 751  (assert-error (remove-duplicates string :start (opaque-identity -1) :end 5))
 752  (assert-error (remove-duplicates string :start 4 :end 2))
 753  (assert-error (remove-duplicates string :start 6 :end 9))
 754  (assert (string= (delete-duplicates string :start 0 :end 5) "a"))
 755  (reset)
 756  (assert (string= (delete-duplicates string :start 0 :end nil) "a"))
 757  (reset)
 758  (assert-error (delete-duplicates string :start 0 :end 6))
 759  (reset)
 760  (assert-error (delete-duplicates string :start (opaque-identity -1) :end 5))
 761  (reset)
 762  (assert-error (delete-duplicates string :start 4 :end 2))
 763  (reset)
 764  (assert-error (delete-duplicates string :start 6 :end 9)))
 765
 766 ;;; Function REPLACE
 767 (sequence-bounding-indices-test
 768  (format t "~&/Function REPLACE")
 769  (assert (string= (replace string "bbbbb" :start1 0 :end1 5) "bbbbb"))
 770  (assert (string= (replace (copy-seq "ccccc")
 771                            string
 772                            :start2 0 :end2 nil) "bbbbb"))
 773  (assert-error (replace string "ccccc" :start1 0 :end1 6))
 774  (assert-error (replace string "ccccc" :start2 (opaque-identity -1) :end2 5))
 775  (assert-error (replace string "ccccc" :start1 4 :end1 2))
 776  (assert-error (replace string "ccccc" :start1 6 :end1 9)))
 777
 778 ;;; Function SEARCH
 779 (sequence-bounding-indices-test
 780  (format t "~&/Function SEARCH")
 781  (assert (= (search "aa" string :start2 0 :end2 5) 0))
 782  (assert (null (search string "aa" :start1 0 :end2 nil)))
 783  (assert-error (search "aa" string :start2 0 :end2 6))
 784  (assert-error (search "aa" string :start2 (opaque-identity -1) :end2 5))
 785  (assert-error (search "aa" string :start2 4 :end2 2))
 786  (assert-error (search "aa" string :start2 6 :end2 9)))
 787
 788 ;;; Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE,
 789 ;;; NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE
 790 (defmacro string-case-frob (fn)
 791   `(progn
 792      (assert-error (,fn string :start 0 :end 6))
 793      (assert-error (,fn string :start (opaque-identity -1) :end 5))
 794      (assert-error (,fn string :start 4 :end 2))
 795      (assert-error (,fn string :start 6 :end 9))))
 796
 797 (sequence-bounding-indices-test
 798  (format t "~&/Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE, ...")
 799  (string-case-frob string-upcase)
 800  (string-case-frob string-downcase)
 801  (string-case-frob string-capitalize)
 802  (format t "~&/... NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE")
 803  (string-case-frob nstring-upcase)
 804  (string-case-frob nstring-downcase)
 805  (string-case-frob nstring-capitalize))
 806
 807 ;;; Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=,
 808 ;;; STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, STRING-GREATERP,
 809 ;;; STRING-NOT-GREATERP, STRING-NOT-LESSP
 810 (defmacro string-predicate-frob (fn)
 811   `(progn
 812      (,fn string "abcde" :start1 0 :end1 5)
 813      (,fn "fghij" string :start2 0 :end2 nil)
 814      (assert-error (,fn string "klmno"
 815                         :start1 0 :end1 6))
 816      (assert-error (,fn "pqrst" string
 817                         :start2 (opaque-identity -1) :end2 5))
 818      (assert-error (,fn "uvwxy" string
 819                         :start1 4 :end1 2))
 820      (assert-error (,fn string "z" :start2 6 :end2 9))))
 821 (sequence-bounding-indices-test
 822  (format t "~&/Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=, ...")
 823  (string-predicate-frob string=)
 824  (string-predicate-frob string/=)
 825  (string-predicate-frob string<)
 826  (string-predicate-frob string>)
 827  (string-predicate-frob string<=)
 828  (string-predicate-frob string>=))
 829 (sequence-bounding-indices-test
 830  (format t "~&/... STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, ...")
 831  (string-predicate-frob string-equal)
 832  (string-predicate-frob string-not-equal)
 833  (string-predicate-frob string-lessp))
 834 (sequence-bounding-indices-test
 835  (format t "~&/... STRING-GREATERP, STRING-NOT-GREATERP, STRING-NOT-LESSP")
 836  (string-predicate-frob string-greaterp)
 837  (string-predicate-frob string-not-greaterp)
 838  (string-predicate-frob string-not-lessp))
 839
 840 ;;; Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT,
 841 ;;; NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT
 842 (sequence-bounding-indices-test
 843  (format t "~&/Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT, ...")
 844  (assert (string= (substitute #\b #\a string :start 0 :end 5) "bbbbb"))
 845  (assert (string= (substitute #\c #\a string :start 0 :end nil)
 846                   "ccccc"))
 847  (assert-error (substitute #\b #\a string :start 0 :end 6))
 848  (assert-error (substitute #\b #\a string :start (opaque-identity -1) :end 5))
 849  (assert-error (substitute #\b #\a string :start 4 :end 2))
 850  (assert-error (substitute #\b #\a string :start 6 :end 9))
 851  (assert (string= (substitute-if #\b #'alpha-char-p string
 852                                  :start 0 :end 5)
 853                   "bbbbb"))
 854  (assert (string= (substitute-if #\c #'alpha-char-p string
 855                                  :start 0 :end nil)
 856                   "ccccc"))
 857  (assert-error (substitute-if #\b #'alpha-char-p string
 858                               :start 0 :end 6))
 859  (assert-error (substitute-if #\b #'alpha-char-p string
 860                               :start (opaque-identity -1) :end 5))
 861  (assert-error (substitute-if #\b #'alpha-char-p string
 862                               :start 4 :end 2))
 863  (assert-error (substitute-if #\b #'alpha-char-p string
 864                               :start 6 :end 9))
 865  (assert (string= (substitute-if-not #\b #'alpha-char-p string
 866                                      :start 0 :end 5)
 867                   "aaaaa"))
 868  (assert (string= (substitute-if-not #\c #'alpha-char-p string
 869                                      :start 0 :end nil)
 870                   "aaaaa"))
 871  (assert-error (substitute-if-not #\b #'alpha-char-p string
 872                                   :start 0 :end 6))
 873  (assert-error (substitute-if-not #\b #'alpha-char-p string
 874                                   :start (opaque-identity -1) :end 5))
 875  (assert-error (substitute-if-not #\b #'alpha-char-p string
 876                                   :start 4 :end 2))
 877  (assert-error (substitute-if-not #\b #'alpha-char-p string
 878                                   :start 6 :end 9)))
 879 (sequence-bounding-indices-test
 880  (format t "~&/... NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT")
 881  (assert (string= (nsubstitute #\b #\a string :start 0 :end 5) "bbbbb"))
 882  (reset)
 883  (assert (string= (nsubstitute #\c #\a string :start 0 :end nil)
 884                   "ccccc"))
 885  (reset)
 886  (assert-error (nsubstitute #\b #\a string :start 0 :end 6))
 887  (reset)
 888  (assert-error (nsubstitute #\b #\a string :start (opaque-identity -1) :end 5))
 889  (reset)
 890  (assert-error (nsubstitute #\b #\a string :start 4 :end 2))
 891  (reset)
 892  (assert-error (nsubstitute #\b #\a string :start 6 :end 9))
 893  (reset)
 894  (assert (string= (nsubstitute-if #\b #'alpha-char-p string
 895                                   :start 0 :end 5)
 896                   "bbbbb"))
 897  (reset)
 898  (assert (string= (nsubstitute-if #\c #'alpha-char-p string
 899                                   :start 0 :end nil)
 900                   "ccccc"))
 901  (reset)
 902  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 903                                :start 0 :end 6))
 904  (reset)
 905  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 906                                :start (opaque-identity -1) :end 5))
 907  (reset)
 908  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 909                                :start 4 :end 2))
 910  (reset)
 911  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 912                                :start 6 :end 9))
 913  (reset)
 914  (assert (string= (nsubstitute-if-not #\b #'alpha-char-p string
 915                                       :start 0 :end 5)
 916                   "aaaaa"))
 917  (reset)
 918  (assert (string= (nsubstitute-if-not #\c #'alpha-char-p string
 919                                       :start 0 :end nil)
 920                   "aaaaa"))
 921  (reset)
 922  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 923                                    :start 0 :end 6))
 924  (reset)
 925  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 926                                    :start (opaque-identity -1) :end 5))
 927  (reset)
 928  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 929                                    :start 4 :end 2))
 930  (reset)
 931  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 932                                    :start 6 :end 9)))
 933 ;;; Function WRITE-STRING, WRITE-LINE
 934 (sequence-bounding-indices-test
 935  (format t "~&/Function WRITE-STRING, WRITE-LINE")
 936  (write-string string *standard-output* :start 0 :end 5)
 937  (write-string string *standard-output* :start 0 :end nil)
 938  (assert-error (write-string string *standard-output*
 939                              :start 0 :end 6))
 940  (assert-error (write-string string *standard-output*
 941                              :start (opaque-identity -1) :end 5))
 942  (assert-error (write-string string *standard-output*
 943                              :start 4 :end 2))
 944  (assert-error (write-string string *standard-output*
 945                              :start 6 :end 9))
 946  (write-line string *standard-output* :start 0 :end 5)
 947  (write-line string *standard-output* :start 0 :end nil)
 948  (assert-error (write-line string *standard-output*
 949                            :start 0 :end 6))
 950  (assert-error (write-line string *standard-output*
 951                            :start (opaque-identity -1) :end 5))
 952  (assert-error (write-line string *standard-output*
 953                            :start 4 :end 2))
 954  (assert-error (write-line string *standard-output*
 955                            :start 6 :end 9)))
 956
 957 ;;; Macro WITH-INPUT-FROM-STRING
 958 (sequence-bounding-indices-test
 959  (format t "~&/Macro WITH-INPUT-FROM-STRING")
 960  (with-input-from-string (s string :start 0 :end 5)
 961    (assert (char= (read-char s) #\a)))
 962  (with-input-from-string (s string :start 0 :end nil)
 963    (assert (char= (read-char s) #\a)))
 964  (assert-error
 965   (with-input-from-string (s string :start 0 :end 6)
 966     (read-char s)))
 967  (assert-error
 968   (with-input-from-string (s string :start (opaque-identity -1) :end 5)
 969     (read-char s)))
 970  (assert-error
 971   (with-input-from-string (s string :start 4 :end 2)
 972     (read-char s)))
 973  (assert-error
 974   (with-input-from-string (s string :start 6 :end 9)
 975     (read-char s))))
 976 \f
 977 ;;; testing bit-bashing according to _The Practice of Programming_
 978 (defun fill-bytes-for-testing (bitsize)
 979   "Return a list of 'bytes' of type (MOD BITSIZE)."
 980   (remove-duplicates (list 0
 981                            (1- (ash 1 (1- bitsize)))
 982                            (ash 1 (1- bitsize))
 983                            (1- (ash 1 bitsize)))))
 984
 985 (defun fill-with-known-value (value size &rest vectors)
 986   (dolist (vec vectors)
 987     (dotimes (i size)
 988       (setf (aref vec i) value))))
 989
 990 (defun collect-fill-amounts (n-power)
 991   (remove-duplicates
 992    (loop for i from 0 upto n-power
 993          collect (1- (expt 2 i))
 994          collect (expt 2 i)
 995          collect (1+ (expt 2 i)))))
 996
 997 (defun test-fill-bashing (bitsize padding-amount n-power)
 998   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
 999          (standard (make-array size :element-type `(unsigned-byte ,bitsize)))
1000          (bashed (make-array size :element-type `(unsigned-byte ,bitsize)))
1001          (fill-amounts (collect-fill-amounts n-power))
1002          (bash-function (intern (format nil "UB~A-BASH-FILL" bitsize)
1003                                 (find-package "SB-KERNEL"))))
1004     (format t "~&/Function ~A..." bash-function)
1005     (loop for offset from padding-amount below (* 2 padding-amount) do
1006           (dolist (c (fill-bytes-for-testing bitsize))
1007             (dolist (n fill-amounts)
1008               (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) n
1009                                      standard bashed)
1010               ;; fill vectors
1011               ;; a) the standard slow way
1012               (locally (declare (notinline fill))
1013                 (fill standard c :start offset :end (+ offset n)))
1014               ;; b) the blazingly fast way
1015               (let ((value (loop for i from 0 by bitsize
1016                                  until (= i sb-vm:n-word-bits)
1017                                  sum (ash c i))))
1018                 (funcall bash-function value bashed offset n))
1019               ;; check for errors
1020               (when (mismatch standard bashed)
1021                 (format t "Test with offset ~A, fill ~A and length ~A failed.~%"
1022                         offset c n)
1023                 (format t "Mismatch: ~A ~A~%"
1024                         (subseq standard 0 (+ offset n 1))
1025                         (subseq bashed 0 (+ offset n 1)))
1026                 (return-from test-fill-bashing nil))))
1027           finally (return t))))
1028
1029 (defun test-copy-bashing (bitsize padding-amount n-power)
1030   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
1031          (standard-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
1032          (bashed-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
1033          (source (make-array size :element-type `(unsigned-byte ,bitsize)))
1034          (fill-amounts (collect-fill-amounts n-power))
1035          (bash-function (intern (format nil "UB~A-BASH-COPY" bitsize)
1036                                 (find-package "SB-KERNEL"))))
1037     (format t "~&/Function ~A..." bash-function)
1038     (do ((source-offset padding-amount (1+ source-offset)))
1039         ((>= source-offset (* padding-amount 2))
1040          ;; success!
1041          t)
1042      (do ((target-offset padding-amount (1+ target-offset)))
1043          ((>= target-offset (* padding-amount 2)))
1044        (dolist (c (fill-bytes-for-testing bitsize))
1045          (dolist (n fill-amounts)
1046            (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) size
1047                                   source standard-dst bashed-dst)
1048            ;; fill with test data
1049            (fill source c :start source-offset :end (+ source-offset n))
1050            ;; copy filled test data to test vectors
1051            ;; a) the slow way
1052            (replace standard-dst source
1053                     :start1 target-offset :end1 (+ target-offset n)
1054                     :start2 source-offset :end2 (+ source-offset n))
1055            ;; b) the blazingly fast way
1056            (funcall bash-function source source-offset
1057                     bashed-dst target-offset n)
1058            ;; check for errors
1059            (when (mismatch standard-dst bashed-dst)
1060              (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1061                      target-offset source-offset c n)
1062              (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1063                      standard-dst
1064                      bashed-dst)
1065              (return-from test-copy-bashing nil))))))))
1066
1067 ;; Too slow for the interpreter
1068 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1069 (loop for i = 1 then (* i 2) do
1070      ;; the bare '13' here is fairly arbitrary, except that it's been
1071      ;; reduced from '32', which made the tests take aeons; '8' provides
1072      ;; a good range of lengths over which to fill and copy, which
1073      ;; should tease out most errors in the code (if any exist).  (It
1074      ;; also makes this part of the test suite finish reasonably
1075      ;; quickly.)
1076      (assert (time (test-fill-bashing i 13 8)))
1077      (assert (time (test-copy-bashing i 13 8)))
1078      until (= i sb-vm:n-word-bits))
1079
1080 (defun test-inlined-bashing (bitsize)
1081   ;; We have to compile things separately for each bitsize so the
1082   ;; compiler will work out the array type and trigger the REPLACE
1083   ;; transform.
1084   (let ((lambda-form
1085          `(lambda ()
1086             (let* ((n-elements-per-word ,(truncate sb-vm:n-word-bits bitsize))
1087                    (size (* 3 n-elements-per-word))
1088                    (standard-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1089                    (bashed-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1090                    (source (make-array size :element-type '(unsigned-byte ,bitsize))))
1091               (declare (type (simple-array (unsigned-byte ,bitsize) (*))
1092                              source standard-dst bashed-dst))
1093               (do ((i 0 (1+ i))
1094                    (offset n-elements-per-word (1+ offset)))
1095                   ((>= offset (* 2 n-elements-per-word)) t)
1096                 (dolist (c (fill-bytes-for-testing ,bitsize))
1097                   (fill-with-known-value (mod (lognot c) (ash 1 ,bitsize)) size
1098                                          source standard-dst bashed-dst)
1099                   ;; fill with test-data
1100                   (fill source c :start offset :end (+ offset n-elements-per-word))
1101                   ;; copy filled data to test vectors
1102                   ;;
1103                   ;; a) the slow way (which is actually fast, since this
1104                   ;; should be transformed into UB*-BASH-COPY)
1105                   (replace standard-dst source
1106                            :start1 (- offset n-elements-per-word i)
1107                            :start2 (- offset n-elements-per-word i)
1108                            :end1 offset :end2 offset)
1109                   ;; b) the fast way--we fold the
1110                   ;; :START{1,2} arguments above ourselves
1111                   ;; to trigger the REPLACE transform
1112                   (replace bashed-dst source
1113                            :start1 0 :start2 0 :end1 offset :end2 offset)
1114                   ;; check for errors
1115                   (when (or (mismatch standard-dst bashed-dst)
1116                             ;; trigger COPY-SEQ transform
1117                             (mismatch (copy-seq standard-dst) bashed-dst)
1118                             ;; trigger SUBSEQ transform
1119                             (mismatch (subseq standard-dst (- offset n-elements-per-word i))
1120                                       bashed-dst))
1121                     (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1122                             0 0 c offset)
1123                     (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1124                             standard-dst
1125                             bashed-dst)
1126                     (return-from nil nil))))))))
1127     (funcall (checked-compile lambda-form))))
1128
1129 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1130 (loop for i = 1 then (* i 2) do
1131       (assert (test-inlined-bashing i))
1132       until (= i sb-vm:n-word-bits))
1133 \f
1134 ;;; tests from the Sacla test suite via Eric Marsden, 2007-05-07
1135 (remove-duplicates (vector 1 2 2 1) :test-not (lambda (a b) (not (= a b))))
1136
1137 (delete-duplicates (vector #\a #\b #\c #\a)
1138                    :test-not (lambda (a b) (not (char-equal a b))))
1139
1140 ;;; FILL on lists
1141 (let ((l (list 1 2 3)))
1142   (assert (eq l (fill l 0 :start 1 :end 2)))
1143   (assert (equal l '(1 0 3)))
1144   (assert (eq l (fill l 'x :start 2 :end 3)))
1145   (assert (equal l '(1 0 x)))
1146   (assert (eq l (fill l 'y :start 1)))
1147   (assert (equal l '(1 y y)))
1148   (assert (eq l (fill l 'z :end 2)))
1149   (assert (equal l '(z z y)))
1150   (assert (eq l (fill l 1)))
1151   (assert (equal l '(1 1 1)))
1152   (assert-error (fill l 0 :start 4))
1153   (assert-error (fill l 0 :end 4))
1154   (assert-error (fill l 0 :start 2 :end 1)))
1155
1156 ;;; Both :TEST and :TEST-NOT provided
1157 (with-test (:name :test-and-test-not-to-adjoin)
1158   (multiple-value-bind (fun failure-p warnings)
1159       (checked-compile `(lambda (item test test-not)
1160                           (adjoin item '(1 2 3 :foo)
1161                                   :test test
1162                                   :test-not test-not))
1163                        :allow-warnings t)
1164     (declare (ignore failure-p))
1165     (assert (= 1 (length warnings)))
1166     (assert-error (funcall fun 1 #'eql (complement #'eql)))))
1167 \f
1168 ;;; tests of deftype types equivalent to STRING or SIMPLE-STRING
1169 (deftype %string () 'string)
1170 (deftype %simple-string () 'simple-string)
1171 (deftype string-3 () '(string 3))
1172 (deftype simple-string-3 () '(simple-string 3))
1173
1174 (with-test (:name :user-defined-string-types-map-etc)
1175   (dolist (type '(%string %simple-string string-3 simple-string-3))
1176     (assert (string= "foo" (coerce '(#\f #\o #\o) type)))
1177     (assert (string= "foo" (map type 'identity #(#\f #\o #\o))))
1178     (assert (string= "foo" (merge type (copy-seq '(#\o)) (copy-seq '(#\f #\o))
1179                                   'char<)))
1180     (assert (string= "foo" (concatenate type '(#\f) "oo")))
1181     (assert (string= "ooo" (make-sequence type 3 :initial-element #\o)))))
1182 (with-test (:name :user-defined-string-types-map-etc-error)
1183   (dolist (type '(string-3 simple-string-3))
1184     (assert-error (coerce '(#\q #\u #\u #\x) type))
1185     (assert-error (map type 'identity #(#\q #\u #\u #\x)))
1186     (assert-error (merge type (copy-seq '(#\q #\x)) (copy-seq "uu") 'char<))
1187     (assert-error (concatenate type "qu" '(#\u #\x)))
1188     (assert-error (make-sequence type 4 :initial-element #\u))))
1189
1190 (defun test-bit-position (size set start end from-end res)
1191   (let ((v (make-array size :element-type 'bit :initial-element 0)))
1192     (dolist (i set)
1193       (setf (bit v i) 1))
1194     (dolist (f (list (checked-compile
1195                       `(lambda (b v s e fe)
1196                          (position b (the bit-vector v) :start s :end e :from-end fe)))
1197                      (checked-compile
1198                       `(lambda (b v s e fe)
1199                          (assert (eql b 1))
1200                          (position 1 (the bit-vector v) :start s :end e :from-end fe)))
1201                      (checked-compile
1202                       `(lambda (b v s e fe)
1203                          (position b (the vector v) :start s :end e :from-end fe)))))
1204       (let ((got (funcall f 1 v start end from-end)))
1205         (unless (eql res got)
1206           (cerror "Continue" "POSITION 1, Wanted ~S, got ~S.~%  size = ~S, set = ~S, from-end = ~S"
1207                   res got
1208                   size set from-end)))))
1209   (let ((v (make-array size :element-type 'bit :initial-element 1)))
1210     (dolist (i set)
1211       (setf (bit v i) 0))
1212     (dolist (f (list (checked-compile
1213                       `(lambda (b v s e fe)
1214                          (position b (the bit-vector v) :start s :end e :from-end fe)))
1215                      (checked-compile
1216                       `(lambda (b v s e fe)
1217                          (assert (eql b 0))
1218                          (position 0 (the bit-vector v) :start s :end e :from-end fe)))
1219                      (checked-compile
1220                       `(lambda (b v s e fe)
1221                          (position b (the vector v) :start s :end e :from-end fe)))))
1222       (let ((got (funcall f 0 v start end from-end)))
1223         (unless (eql res got)
1224           (cerror "Continue" "POSITION 0, Wanted ~S, got ~S.~%  size = ~S, set = ~S, from-end = ~S"
1225                   res got
1226                   size set from-end))))))
1227
1228 (defun random-test-bit-position (n)
1229   (loop repeat n
1230         do (let* ((vector (make-array (+ 2 (random 5000)) :element-type 'bit))
1231                   (offset (random (1- (length vector))))
1232                   (size (1+ (random (- (length vector) offset))))
1233                   (disp (make-array size :element-type 'bit :displaced-to vector
1234                                          :displaced-index-offset offset)))
1235              (assert (plusp size))
1236              (loop repeat 10
1237                    do (setf (bit vector (random (length vector))) 1))
1238              (flet ((test (orig)
1239                       (declare (bit-vector orig))
1240                       (let ((copy (coerce orig 'simple-vector))
1241                             (p0 (random (length orig)))
1242                             (p1 (1+ (random (length orig)))))
1243                         (multiple-value-bind (s e)
1244                             (if (> p1 p0)
1245                                 (values p0 p1)
1246                                 (values p1 p0))
1247                           (assert (eql (position 1 copy :start s :end e)
1248                                        (position 1 orig :start s :end e)))
1249                           (assert (eql (position 1 copy :start s :end e :from-end t)
1250                                        (position 1 orig :start s :end e :from-end t)))))))
1251                (test vector)
1252                (test disp)))))
1253
1254 (with-test (:name :bit-position)
1255   (test-bit-position 0 (list) 0 0 nil nil)
1256   (test-bit-position 0 (list) 0 0 t nil)
1257   (test-bit-position 1 (list 0) 0 0 nil nil)
1258   (test-bit-position 1 (list 0) 0 0 t nil)
1259   (test-bit-position 1 (list 0) 0 1 nil 0)
1260   (test-bit-position 1 (list 0) 0 1 t 0)
1261   (test-bit-position 10 (list 0 1) 0 1 nil 0)
1262   (test-bit-position 10 (list 0 1) 1 1 nil nil)
1263   (test-bit-position 10 (list 0 1) 0 1 t 0)
1264   (test-bit-position 10 (list 0 1) 1 1 t nil)
1265   (test-bit-position 10 (list 0 3) 1 4 nil 3)
1266   (test-bit-position 10 (list 0 3) 1 4 t 3)
1267   (test-bit-position 10 (list 0 3 6) 1 10 nil 3)
1268   (test-bit-position 10 (list 0 3 6) 1 10 t 6)
1269   (test-bit-position 1000 (list 128 700) 20 500 nil 128)
1270   (test-bit-position 1000 (list 128 700) 20 500 t 128)
1271   (test-bit-position 1000 (list 423 762) 200 800 nil 423)
1272   (test-bit-position 1000 (list 423 762) 200 800 t 762)
1273   (test-bit-position 1000 (list 298 299) 100 400 nil 298)
1274   (test-bit-position 1000 (list 298 299) 100 400 t 299))
1275
1276 (with-test (:name (:bit-position :random-test))
1277   (random-test-bit-position 10000))
1278
1279 ;; REVERSE and NREVERSE should assert that the returned value
1280 ;; from a generic sequence operation is of type SEQUENCE.
1281 (defclass bogus-reversal-seq (sequence standard-object) ())
1282 (defmethod sequence:reverse ((self bogus-reversal-seq))
1283   #2a((x y) (1 2)))
1284 (with-test (:name :generic-sequence-reverse)
1285   (assert-error (reverse (make-instance 'bogus-reversal-seq))))
1286
1287 (with-test (:name :abstract-base-sequence-satisfies-sequencep)
1288   (assert (typep (sb-pcl::class-prototype (find-class 'sequence)) 'sequence)))
1289
1290 (defvar *macro-invocations* 0)
1291 ;; in case someone adds more tests after this, don't mess up OPAQUE-IDENTITY
1292 (defun opaque-id-again (x) x)
1293 (define-compiler-macro opaque-id-again (x) (incf *macro-invocations*) x)
1294 (with-test (:name :mapfoo-admits-compiler-macros)
1295   (checked-compile '(lambda (l) (mapcar #'opaque-id-again l)))
1296   (assert (= *macro-invocations* 1))
1297   (checked-compile '(lambda (l) (some #'opaque-id-again l)))
1298   (assert (= *macro-invocations* 2)))
1299
1300 ;;; success