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