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             (multiple-value-bind (fun warnings-p failure-p)
 107                 (compile nil lambda-expr)
 108               (when (or warnings-p failure-p)
 109                 (error "~@<failed compilation:~2I ~_LAMBDA-EXPR=~S ~_WARNINGS-P=~S ~_FAILURE-P=~S~:@>"
 110                        lambda-expr warnings-p failure-p))
 111               ;(format t "~&~S ~S~%~S~%~S ~S~%"
 112               ;        base-seq snippet seq-type declaredness optimization)
 113               ;(format t "~&(TYPEP SEQ 'SIMPLE-ARRAY)=~S~%"
 114               ;        (typep seq 'simple-array))
 115               (unless (funcall fun seq)
 116                 (error "~@<failed test:~2I ~_BASE-SEQ=~S ~_SNIPPET=~S ~_SEQ-TYPE=~S ~_DECLAREDNESS=~S ~_OPTIMIZATION=~S~:@>"
 117                        base-seq
 118                        snippet
 119                        seq-type
 120                        declaredness
 121                        optimization)))))))))
 122 (defun for-every-seq (base-seq snippets)
 123   (dolist (snippet snippets)
 124     (for-every-seq-1 base-seq snippet)))
 125
 126 ;;; a wrapper to hide declared type information from the compiler, so
 127 ;;; we don't get stopped by compiler warnings about e.g. compiling
 128 ;;; (POSITION 1 #() :KEY #'ABS) when #() has been coerced to a string.
 129 (defun indiscriminate (fun)
 130   (lambda (&rest rest) (apply fun rest)))
 131
 132 ;;; asymmetric test arg order example from ANSI FIND definition page
 133 (assert (eql #\space ; original example, depends on ASCII character ordering
 134              (find #\d "here are some letters that can be looked at"
 135                    :test #'char>)))
 136 (assert (eql #\e ; modified example, depends only on standard a-z ordering
 137              (find #\f "herearesomeletters" :test #'char>)))
 138 (assert (eql 4 ; modified more, avoids charset technicalities completely
 139              (find 5 '(6 4) :test '>)))
 140
 141 (with-test (:name sequence:emptyp)
 142   (for-every-seq #()
 143     '((eq t (sequence:emptyp seq))))
 144   (for-every-seq #(1)
 145     '((eq nil (sequence:emptyp seq)))))
 146
 147 ;;; tests of FIND, POSITION, FIND-IF, and POSITION-IF (and a few for
 148 ;;; deprecated FIND-IF-NOT and POSITION-IF-NOT too)
 149 (for-every-seq #()
 150   '((null (find 1 seq))
 151     (null (find 1 seq :from-end t))
 152     (null (position 1 seq :key (indiscriminate #'abs)))
 153     (null (position nil seq :test (constantly t)))
 154     (null (position nil seq :test nil))
 155     (null (position nil seq :test-not nil))
 156     (null (find-if #'1+ seq :key (indiscriminate #'log)))
 157     (null (position-if #'identity seq :from-end t))
 158     (null (find-if-not #'packagep seq))
 159     (null (position-if-not #'packagep seq :key nil))))
 160 (for-every-seq #(1)
 161   '((null (find 2 seq))
 162     ;; Get the argument ordering for asymmetric tests like #'> right.
 163     ;; (bug reported and fixed by Alexey Dejneka sbcl-devel 2001-10-17)
 164     (eql 1 (find 2 seq :test #'>))
 165     (find 2 seq :key #'1+)
 166     (find 1 seq :from-end t)
 167     (null (find 1 seq :from-end t :start 1))
 168     (null (find 0 seq :from-end t))
 169     (eql 0 (position 1 seq :key #'abs))
 170     (null (position nil seq :test 'equal))
 171     (eql 1 (find-if #'1- seq :key #'log))
 172     (eql 0 (position-if #'identity seq :from-end t))
 173     (null (find-if-not #'sin seq))
 174     (eql 0 (position-if-not #'packagep seq :key 'identity))))
 175 (for-every-seq #(1 2 3 2 1)
 176   '((find 3 seq)
 177     (find 3 seq :from-end 'yes)
 178     (eql 1 (position 1.5 seq :test #'<))
 179     (eql 0 (position 0 seq :key '1-))
 180     (eql 4 (position 0 seq :key '1- :from-end t))
 181     (eql 2 (position 4 seq :key '1+))
 182     (eql 2 (position 4 seq :key '1+ :from-end t))
 183     (eql 1 (position 2 seq))
 184     (eql 1 (position 2 seq :start 1))
 185     (null (find 2 seq :start 1 :end 1))
 186     (eql 3 (position 2 seq :start 2))
 187     (eql 3 (position 2 seq :key nil :from-end t))
 188     (eql 2 (position 3 seq :test '=))
 189     (eql 0 (position 3 seq :test-not 'equalp))
 190     (eql 2 (position 3 seq :test 'equal :from-end t))
 191     (null (position 4 seq :test #'eql))
 192     (null (find-if #'packagep seq))
 193     (eql 1 (find-if #'plusp seq))
 194     (eql 3 (position-if #'plusp seq :key #'1- :from-end t))
 195     (eql 1 (position-if #'evenp seq))
 196     (eql 3 (position-if #'evenp seq :from-end t))
 197     (eql 2 (position-if #'plusp seq :from-end nil :key '1- :start 2))
 198     (eql 3 (position-if #'plusp seq :from-end t :key '1- :start 2))
 199     (null (position-if #'plusp seq :from-end t :key '1- :start 2 :end 2))
 200     (null (find-if-not #'plusp seq))
 201     (eql 0 (position-if-not #'evenp seq))
 202     (eql 0 (search #(1) seq))
 203     (eql 1 (search #(4 5) seq :key 'oddp))
 204     (eql 1 (search #(-2) seq :test (lambda (a b) (= (- a) b))))
 205     (eql 4 (search #(1) seq :start2 1))
 206     (null (search #(3) seq :start2 3))
 207     (eql 2 (search #(3) seq :start2 2))
 208     (eql 0 (search #(1 2) seq))
 209     (null (search #(2 1 3) seq))
 210     (eql 0 (search #(0 1 2 4) seq :start1 1 :end1 3))
 211     (eql 3 (search #(0 2 1 4) seq :start1 1 :end1 3))
 212     (eql 4 (search #(1) seq :from-end t))
 213     (eql 0 (search #(1 2) seq :from-end t))
 214     (null (search #(1 2) seq :from-end t :start2 1))
 215     (eql 0 (search #(0 1 2 4) seq :from-end t :start1 1 :end1 3))
 216     (eql 3 (search #(0 2 1 4) seq :from-end t :start1 1 :end1 3))
 217     (null (search #(2 1 3) seq :from-end t))))
 218 (for-every-seq "string test"
 219   '((null (find 0 seq))
 220     (null (find #\D seq :key #'char-upcase))
 221     (find #\E seq :key #'char-upcase)
 222     (null (find #\e seq :key #'char-upcase))
 223     (eql 3 (position #\i seq))
 224     (eql 0 (position #\s seq :key #'char-downcase))
 225     (eql 1 (position #\s seq :key #'char-downcase :test #'char/=))
 226     (eql 9 (position #\s seq :from-end t :test #'char=))
 227     (eql 10 (position #\s seq :from-end t :test #'char/=))
 228     (eql 4 (position #\N seq :from-end t :key 'char-upcase :test #'char-equal))
 229     (eql 5 (position-if (lambda (c) (equal #\g c)) seq))
 230     (eql 5 (position-if (lambda (c) (equal #\g c)) seq :from-end t))
 231     (find-if #'characterp seq)
 232     (find-if (lambda (c) (typep c 'base-char)) seq :from-end t)
 233     (null (find-if 'upper-case-p seq))))
 234
 235 ;;; SUBSEQ
 236 (with-test (:name :subseq)
 237   (let ((avec (make-array 10
 238                           :fill-pointer 4
 239                           :initial-contents '(0 1 2 3 iv v vi vii iix ix))))
 240     ;; These first five always worked AFAIK.
 241     (assert (equalp (subseq avec 0 3) #(0 1 2)))
 242     (assert (equalp (subseq avec 3 3) #()))
 243     (assert (equalp (subseq avec 1 3) #(1 2)))
 244     (assert (equalp (subseq avec 1) #(1 2 3)))
 245     (assert (equalp (subseq avec 1 4) #(1 2 3)))
 246     ;; SBCL bug found ca. 2002-05-01 by OpenMCL's correct handling of
 247     ;; SUBSEQ, CSR's driving portable cross-compilation far enough to
 248     ;; reach the SUBSEQ calls in assem.lisp, and WHN's sleazy
 249     ;; translation of old CMU CL new-assem.lisp into sufficiently grotty
 250     ;; portable Lisp that it passed suitable illegal values to SUBSEQ to
 251     ;; exercise the bug:-|
 252     ;;
 253     ;; SUBSEQ should check its END value against logical LENGTH, not
 254     ;; physical ARRAY-DIMENSION 0.
 255     ;;
 256     ;; fixed in sbcl-0.7.4.22 by WHN
 257     (assert (null (ignore-errors (aref (subseq avec 1 5) 0))))))
 258
 259 ;;; FILL
 260 (defun test-fill-typecheck (x)
 261   (declare (optimize (safety 3) (space 2) (speed 1)))
 262   (fill (make-string 10) x))
 263
 264 (assert (string= (test-fill-typecheck #\@) "@@@@@@@@@@"))
 265 ;;; BUG 186, fixed in sbcl-0.7.5.5
 266 (assert (null (ignore-errors (test-fill-typecheck 4097))))
 267
 268 ;;; MAKE-SEQUENCE, COERCE, CONCATENATE, MERGE, MAP and requested
 269 ;;; result type (BUGs 46a, 46b, 66)
 270 (with-test (:name :sequence-functions)
 271   (macrolet ((assert-type-error (form)
 272                `(assert (typep (nth-value 1 (ignore-errors ,form))
 273                                'type-error))))
 274     (dolist (type-stub '((simple-vector)
 275                          (vector *)
 276                          (vector (signed-byte 8))
 277                          (vector (unsigned-byte 16))
 278                          (vector (signed-byte 32))
 279                          (simple-bit-vector)))
 280       (declare (optimize safety))
 281       (format t "~&~S~%" type-stub)
 282       ;; MAKE-SEQUENCE
 283       (assert (= (length (make-sequence `(,@type-stub) 10)) 10))
 284       (assert (= (length (make-sequence `(,@type-stub 10) 10)) 10))
 285       (assert-type-error (make-sequence `(,@type-stub 10) 11))
 286       ;; COERCE
 287       (assert (= (length (coerce '(0 0 0) `(,@type-stub))) 3))
 288       (assert (= (length (coerce #(0 0 0) `(,@type-stub 3))) 3))
 289       (assert-type-error (coerce #*111 `(,@type-stub 4)))
 290       ;; CONCATENATE
 291       (assert (= (length (concatenate `(,@type-stub) #(0 0 0) #*111)) 6))
 292       (assert (equalp (concatenate `(,@type-stub) #(0 0 0) #*111)
 293                       (coerce #(0 0 0 1 1 1) `(,@type-stub))))
 294       (assert (= (length (concatenate `(,@type-stub 6) #(0 0 0) #*111)) 6))
 295       (assert (equalp (concatenate `(,@type-stub 6) #(0 0 0) #*111)
 296                       (coerce #(0 0 0 1 1 1) `(,@type-stub 6))))
 297       (assert-type-error (concatenate `(,@type-stub 5) #(0 0 0) #*111))
 298       ;; MERGE
 299       (macrolet ((test (type)
 300                    `(merge ,type (copy-seq #(0 1 0)) (copy-seq #*111) #'>)))
 301         (assert (= (length (test `(,@type-stub))) 6))
 302         (assert (equalp (test `(,@type-stub))
 303                         (coerce #(1 1 1 0 1 0) `(,@type-stub))))
 304         (assert (= (length (test `(,@type-stub 6))) 6))
 305         (assert (equalp (test `(,@type-stub 6))
 306                         (coerce #(1 1 1 0 1 0) `(,@type-stub 6))))
 307         (assert-type-error (test `(,@type-stub 4))))
 308       ;; MAP
 309       (assert (= (length (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))) 4))
 310       (assert (equalp (map `(,@type-stub) #'logxor #(0 0 1 1) '(0 1 0 1))
 311                       (coerce #(0 1 1 0) `(,@type-stub))))
 312       (assert (= (length (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1)))
 313                  4))
 314       (assert (equalp (map `(,@type-stub 4) #'logxor #(0 0 1 1) '(0 1 0 1))
 315                       (coerce #(0 1 1 0) `(,@type-stub 4))))
 316       (assert-type-error (map `(,@type-stub 5) #'logxor #(0 0 1 1) '(0 1 0 1))))
 317     ;; some more CONCATENATE tests for strings
 318     (locally
 319         (declare (optimize safety))
 320       (assert (string= (concatenate 'string "foo" " " "bar") "foo bar"))
 321       (assert (string= (concatenate '(string 7) "foo" " " "bar") "foo bar"))
 322       (assert-type-error (concatenate '(string 6) "foo" " " "bar"))
 323       (assert (string= (concatenate '(string 6) "foo" #(#\b #\a #\r)) "foobar"))
 324       (assert (string= (concatenate '(string 6) #(#\b #\a #\r) "foo") "barfoo"))
 325       (assert-type-error (concatenate '(string 7) "foo" #(#\b #\a #\r))))
 326     ;; Non-VECTOR ARRAY types aren't allowed as vector type specifiers.
 327     (locally
 328         (declare (optimize safety))
 329       (assert-type-error (concatenate 'simple-array "foo" "bar"))
 330       (assert-type-error (map 'simple-array #'identity '(1 2 3)))
 331       (assert (equalp #(11 13)
 332                       (map '(simple-array fixnum (*)) #'+ '(1 2 3) '(10 11))))
 333       (assert-type-error (coerce '(1 2 3) 'simple-array))
 334       (assert-type-error (merge 'simple-array (list 1 3) (list 2 4) '<))
 335       (assert (equalp #(3 2 1) (coerce '(3 2 1) '(vector fixnum))))
 336       (assert-type-error (map 'array #'identity '(1 2 3)))
 337       (assert-type-error (map '(array fixnum) #'identity '(1 2 3)))
 338       (assert (equalp #(1 2 3) (coerce '(1 2 3) '(vector fixnum))))
 339       ;; but COERCE has an exemption clause:
 340       (assert (string= "foo" (coerce "foo" 'simple-array)))
 341       ;; ... though not in all cases.
 342       (assert-type-error (coerce '(#\f #\o #\o) 'simple-array)))))
 343
 344 ;; CONCATENATE used to fail for generic sequences for result-type NULL.
 345 (with-test (:name (concatenate :result-type-null :bug-1162301))
 346   (assert (sequence:emptyp (concatenate 'null)))
 347
 348   (for-every-seq #()
 349     '((sequence:emptyp (concatenate 'null seq))
 350       (sequence:emptyp (concatenate 'null seq seq))
 351       (sequence:emptyp (concatenate 'null seq #()))
 352       (sequence:emptyp (concatenate 'null seq ""))))
 353
 354   (for-every-seq #(1)
 355     (mapcar (lambda (form)
 356               `(typep (nth-value 1 (ignore-errors ,form)) 'type-error))
 357             '((concatenate 'null seq)
 358               (concatenate 'null seq seq)
 359               (concatenate 'null seq #())
 360               (concatenate 'null seq "2")))))
 361
 362 ;;; As pointed out by Raymond Toy on #lisp IRC, MERGE had some issues
 363 ;;; with user-defined types until sbcl-0.7.8.11
 364 (deftype list-typeoid () 'list)
 365 (with-test (:name :merge-user-types)
 366  (assert (equal '(1 2 3 4) (merge 'list-typeoid (list 1 3) (list 2 4) '<)))
 367 ;;; and also with types that weren't precicely LIST
 368  (assert (equal '(1 2 3 4) (merge 'cons (list 1 3) (list 2 4) '<))))
 369
 370 ;;; but wait, there's more! The NULL and CONS types also have implicit
 371 ;;; length requirements:
 372 (with-test (:name :sequence-functions-list-types)
 373   (macrolet ((assert-type-error (form)
 374                `(assert (typep (nth-value 1 (ignore-errors ,form))
 375                                'type-error))))
 376     (locally
 377         (declare (optimize safety))
 378       ;; MAKE-SEQUENCE
 379       (assert-type-error (make-sequence 'cons 0))
 380       (assert-type-error (make-sequence 'null 1))
 381       (assert-type-error (make-sequence '(cons t null) 0))
 382       (assert-type-error (make-sequence '(cons t null) 2))
 383       ;; KLUDGE: I'm not certain that this test actually tests for what
 384       ;; it should test, in that the type deriver and optimizers might
 385       ;; be too smart for the good of an exhaustive test system.
 386       ;; However, it makes me feel good.  -- CSR, 2002-10-18
 387       (assert (null (make-sequence 'null 0)))
 388       (assert (= (length (make-sequence 'cons 3)) 3))
 389       (assert (= (length (make-sequence '(cons t null) 1)) 1))
 390       ;; and NIL is not a valid type for MAKE-SEQUENCE
 391       (assert-type-error (make-sequence 'nil 0))
 392       ;; COERCE
 393       (assert-type-error (coerce #(1) 'null))
 394       (assert-type-error (coerce #() 'cons))
 395       (assert-type-error (coerce #() '(cons t null)))
 396       (assert-type-error (coerce #(1 2) '(cons t null)))
 397       (assert (null (coerce #() 'null)))
 398       (assert (= (length (coerce #(1) 'cons)) 1))
 399       (assert (= (length (coerce #(1) '(cons t null))) 1))
 400       (assert-type-error (coerce #() 'nil))
 401       ;; MERGE
 402       (assert-type-error (merge 'null (list 1 3) (list 2 4) '<))
 403       (assert-type-error (merge 'cons () () '<))
 404       (assert (null (merge 'null () () '<)))
 405       (assert (= (length (merge 'cons (list 1 3) (list 2 4) '<)) 4))
 406       (assert (= (length (merge '(cons t (cons t (cons t (cons t null))))
 407                                 (list 1 3) (list 2 4)
 408                                 '<))
 409                  4))
 410       (assert-type-error (merge 'nil () () '<))
 411       ;; CONCATENATE
 412       (assert-type-error (concatenate 'cons #() ()))
 413       (assert-type-error (concatenate '(cons t null) #(1 2 3) #(4 5 6)))
 414       (assert (= (length (concatenate 'cons #() '(1) "2 3")) 4))
 415       (assert (= (length (concatenate '(cons t cons) '(1) "34")) 3))
 416       (assert-type-error (concatenate 'nil '(3)))
 417       ;; FIXME: tests for MAP to come when some brave soul implements
 418       ;; the analogous type checking for MAP/%MAP.
 419       )))
 420 \f
 421 ;;; ELT should signal an error of type TYPE-ERROR if its index
 422 ;;; argument isn't a valid sequence index for sequence:
 423 (defun test-elt-signal (x)
 424   (elt x 3))
 425 (assert-error (test-elt-signal "foo") type-error)
 426 (assert (eql (test-elt-signal "foob") #\b))
 427 (locally
 428     (declare (optimize (safety 3)))
 429   (assert-error (elt (list 1 2 3) 3) type-error))
 430 \f
 431 ;;; confusion in the refactoring led to this signalling an unbound
 432 ;;; variable, not a type error.
 433 (defun svrefalike (x)
 434   (svref x 0))
 435 (assert-error (svrefalike #*0) type-error)
 436 \f
 437 ;;; checks for uniform bounding index handling.
 438 ;;;
 439 ;;; This used to be SAFETY 3 only, but bypassing these checks with
 440 ;;; above-zero speed when SPEED > SAFETY is not The SBCL Way.
 441 ;;;
 442 ;;; KLUDGE: not all in one big form because that causes SBCL to spend
 443 ;;; an absolute age trying to compile it.
 444 (defmacro sequence-bounding-indices-test (&body body)
 445   `(progn
 446      (locally
 447     ;; See Issues 332 [and 333(!)] in the CLHS
 448     (declare (optimize (speed 3) (safety 1)))
 449     (let ((string (make-array 10
 450                               :fill-pointer 5
 451                               :initial-element #\a
 452                               :element-type 'base-char)))
 453         ,(car body)
 454         (format t "... BASE-CHAR")
 455         (finish-output)
 456         (flet ((reset ()
 457                  (setf (fill-pointer string) 10)
 458                  (fill string #\a)
 459                  (setf (fill-pointer string) 5)))
 460           (declare (ignorable #'reset))
 461           ,@(cdr body))))
 462     (locally
 463       ;; See Issues 332 [and 333(!)] in the CLHS
 464       (declare (optimize (speed 3) (safety 1)))
 465       (let ((string (make-array 10
 466                                 :fill-pointer 5
 467                                 :initial-element #\a
 468                                 :element-type 'character)))
 469         ,(car body)
 470         (format t "... CHARACTER")
 471         (finish-output)
 472       (flet ((reset ()
 473                (setf (fill-pointer string) 10)
 474                (fill string #\a)
 475                (setf (fill-pointer string) 5)))
 476         (declare (ignorable #'reset))
 477           ,@(cdr body))))))
 478
 479 (declaim (notinline opaque-identity))
 480 (defun opaque-identity (x) x)
 481 ;;; Accessor SUBSEQ
 482 (sequence-bounding-indices-test
 483  (format t "~&/Accessor SUBSEQ")
 484  (assert (string= (subseq string 0 5) "aaaaa"))
 485  (assert-error (subseq string 0 6))
 486  (assert-error (subseq string (opaque-identity -1) 5))
 487  (assert-error (subseq string 4 2))
 488  (assert-error (subseq string 6))
 489  (assert (string= (setf (subseq string 0 5) "abcde") "abcde"))
 490  (assert (string= (subseq string 0 5) "abcde"))
 491  (reset)
 492  (assert-error (setf (subseq string 0 6) "abcdef"))
 493  (assert-error (setf (subseq string (opaque-identity -1) 5) "abcdef"))
 494  (assert-error (setf (subseq string 4 2) ""))
 495  (assert-error (setf (subseq string 6) "ghij")))
 496
 497 ;;; Function COUNT, COUNT-IF, COUNT-IF-NOT
 498 (sequence-bounding-indices-test
 499  (format t "~&/Function COUNT, COUNT-IF, COUNT-IF-NOT")
 500  (assert (= (count #\a string :start 0 :end nil) 5))
 501  (assert (= (count #\a string :start 0 :end 5) 5))
 502  (assert-error (count #\a string :start 0 :end 6))
 503  (assert-error (count #\a string :start (opaque-identity -1) :end 5))
 504  (assert-error (count #\a string :start 4 :end 2))
 505  (assert-error (count #\a string :start 6 :end 9))
 506  (assert (= (count-if #'alpha-char-p string :start 0 :end nil) 5))
 507  (assert (= (count-if #'alpha-char-p string :start 0 :end 5) 5))
 508  (assert-error
 509   (count-if #'alpha-char-p string :start 0 :end 6))
 510  (assert-error
 511   (count-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 512  (assert-error
 513   (count-if #'alpha-char-p string :start 4 :end 2))
 514  (assert-error
 515   (count-if #'alpha-char-p string :start 6 :end 9))
 516  (assert (= (count-if-not #'alpha-char-p string :start 0 :end nil) 0))
 517  (assert (= (count-if-not #'alpha-char-p string :start 0 :end 5) 0))
 518  (assert-error
 519   (count-if-not #'alpha-char-p string :start 0 :end 6))
 520  (assert-error
 521   (count-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 522  (assert-error
 523   (count-if-not #'alpha-char-p string :start 4 :end 2))
 524  (assert-error
 525   (count-if-not #'alpha-char-p string :start 6 :end 9)))
 526
 527 ;;; Function FILL
 528 (sequence-bounding-indices-test
 529  (format t "~&/Function FILL")
 530  (assert (string= (fill string #\b :start 0 :end 5) "bbbbb"))
 531  (assert (string= (fill string #\c :start 0 :end nil) "ccccc"))
 532  (assert-error (fill string #\d :start 0 :end 6))
 533  (assert-error (fill string #\d :start (opaque-identity -1) :end 5))
 534  (assert-error (fill string #\d :start 4 :end 2))
 535  (assert-error (fill string #\d :start 6 :end 9)))
 536
 537 ;;; Function FIND, FIND-IF, FIND-IF-NOT
 538 (sequence-bounding-indices-test
 539  (format t "~&/Function FIND, FIND-IF, FIND-IF-NOT")
 540  (assert (char= (find #\a string :start 0 :end nil) #\a))
 541  (assert (char= (find #\a string :start 0 :end 5) #\a))
 542  (assert-error (find #\a string :start 0 :end 6))
 543  (assert-error (find #\a string :start (opaque-identity -1) :end 5))
 544  (assert-error (find #\a string :start 4 :end 2))
 545  (assert-error (find #\a string :start 6 :end 9))
 546  (assert (char= (find-if #'alpha-char-p string :start 0 :end nil) #\a))
 547  (assert (char= (find-if #'alpha-char-p string :start 0 :end 5) #\a))
 548  (assert-error
 549   (find-if #'alpha-char-p string :start 0 :end 6))
 550  (assert-error
 551   (find-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 552  (assert-error
 553   (find-if #'alpha-char-p string :start 4 :end 2))
 554  (assert-error
 555   (find-if #'alpha-char-p string :start 6 :end 9))
 556  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end nil) nil))
 557  (assert (eq (find-if-not #'alpha-char-p string :start 0 :end 5) nil))
 558  (assert-error
 559   (find-if-not #'alpha-char-p string :start 0 :end 6))
 560  (assert-error
 561   (find-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 562  (assert-error
 563   (find-if-not #'alpha-char-p string :start 4 :end 2))
 564  (assert-error
 565   (find-if-not #'alpha-char-p string :start 6 :end 9)))
 566
 567 ;;; Function MISMATCH
 568 (sequence-bounding-indices-test
 569  (format t "~&/Function MISMATCH")
 570  (assert (null (mismatch string "aaaaa" :start1 0 :end1 nil)))
 571  (assert (= (mismatch "aaab" string :start2 0 :end2 4) 3))
 572  (assert-error (mismatch "aaaaaa" string :start2 0 :end2 6))
 573  (assert-error (mismatch string "aaaaaa" :start1 (opaque-identity -1) :end1 5))
 574  (assert-error (mismatch string "" :start1 4 :end1 2))
 575  (assert-error (mismatch "aaaa" string :start2 6 :end2 9)))
 576
 577 ;;; Function PARSE-INTEGER
 578 (sequence-bounding-indices-test
 579  (format t "~&/Function PARSE-INTEGER")
 580  (setf (fill-pointer string) 10)
 581  (setf (subseq string 0 10) "1234567890")
 582  (setf (fill-pointer string) 5)
 583  (assert (= (parse-integer string :start 0 :end 5) 12345))
 584  (assert (= (parse-integer string :start 0 :end nil) 12345))
 585  (assert-error (parse-integer string :start 0 :end 6))
 586  (assert-error (parse-integer string :start (opaque-identity -1) :end 5))
 587  (assert-error (parse-integer string :start 4 :end 2))
 588  (assert-error (parse-integer string :start 6 :end 9)))
 589
 590 ;;; Function PARSE-NAMESTRING
 591 (sequence-bounding-indices-test
 592  (format t "~&/Function PARSE-NAMESTRING")
 593  (setf (fill-pointer string) 10)
 594  (setf (subseq string 0 10)
 595        #-win32 "/dev/ /tmp"
 596        #+win32 "C:/   NUL")
 597  (setf (fill-pointer string) 5)
 598  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 599                                      :start 0 :end 5)))
 600  (assert (truename (parse-namestring string nil *default-pathname-defaults*
 601                                      :start 0 :end nil)))
 602  (assert-error (parse-namestring string nil
 603                                  *default-pathname-defaults*
 604                                  :start 0 :end 6))
 605  (assert-error (parse-namestring string nil
 606                                  *default-pathname-defaults*
 607                                  :start (opaque-identity -1) :end 5))
 608  (assert-error (parse-namestring string nil
 609                                  *default-pathname-defaults*
 610                                  :start 4 :end 2))
 611  (assert-error (parse-namestring string nil
 612                                  *default-pathname-defaults*
 613                                  :start 6 :end 9)))
 614
 615 ;;; Function POSITION, POSITION-IF, POSITION-IF-NOT
 616 (sequence-bounding-indices-test
 617  (format t "~&/Function POSITION, POSITION-IF, POSITION-IF-NOT")
 618
 619  (assert (= (position #\a string :start 0 :end nil) 0))
 620  (assert (= (position #\a string :start 0 :end 5) 0))
 621  (assert-error (position #\a string :start 0 :end 6))
 622  (assert-error (position #\a string :start (opaque-identity -1) :end 5))
 623  (assert-error (position #\a string :start 4 :end 2))
 624  (assert-error (position #\a string :start 6 :end 9))
 625  (assert (= (position-if #'alpha-char-p string :start 0 :end nil) 0))
 626  (assert (= (position-if #'alpha-char-p string :start 0 :end 5) 0))
 627  (assert-error
 628   (position-if #'alpha-char-p string :start 0 :end 6))
 629  (assert-error
 630   (position-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 631  (assert-error
 632   (position-if #'alpha-char-p string :start 4 :end 2))
 633  (assert-error
 634   (position-if #'alpha-char-p string :start 6 :end 9))
 635  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end nil) nil))
 636  (assert (eq (position-if-not #'alpha-char-p string :start 0 :end 5) nil))
 637  (assert-error
 638   (position-if-not #'alpha-char-p string :start 0 :end 6))
 639  (assert-error
 640   (position-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 641  (assert-error
 642   (position-if-not #'alpha-char-p string :start 4 :end 2))
 643  (assert-error
 644   (position-if-not #'alpha-char-p string :start 6 :end 9)))
 645
 646 ;;; Function READ-FROM-STRING
 647 (sequence-bounding-indices-test
 648  (format t "~&/Function READ-FROM-STRING")
 649  (setf (subseq string 0 5) "(a b)")
 650  (assert (equal (read-from-string string nil nil :start 0 :end 5) '(a b)))
 651  (assert (equal (read-from-string string nil nil :start 0 :end nil) '(a b)))
 652  (assert-error (read-from-string string nil nil :start 0 :end 6))
 653  (assert-error (read-from-string string nil nil :start (opaque-identity -1) :end 5))
 654  (assert-error (read-from-string string nil nil :start 4 :end 2))
 655  (assert-error (read-from-string string nil nil :start 6 :end 9)))
 656
 657 ;;; Function REDUCE
 658 (sequence-bounding-indices-test
 659  (format t "~&/Function REDUCE")
 660  (setf (subseq string 0 5) "abcde")
 661  (assert (equal (reduce #'list* string :from-end t :start 0 :end nil)
 662                 '(#\a #\b #\c #\d . #\e)))
 663  (assert (equal (reduce #'list* string :from-end t :start 0 :end 5)
 664                 '(#\a #\b #\c #\d . #\e)))
 665  (assert-error (reduce #'list* string :start 0 :end 6))
 666  (assert-error (reduce #'list* string :start (opaque-identity -1) :end 5))
 667  (assert-error (reduce #'list* string :start 4 :end 2))
 668  (assert-error (reduce #'list* string :start 6 :end 9)))
 669
 670 ;;; Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, DELETE, DELETE-IF,
 671 ;;; DELETE-IF-NOT
 672 (sequence-bounding-indices-test
 673  (format t "~&/Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, ...")
 674  (assert (equal (remove #\a string :start 0 :end nil) ""))
 675  (assert (equal (remove #\a string :start 0 :end 5) ""))
 676  (assert-error (remove #\a string :start 0 :end 6))
 677  (assert-error (remove #\a string :start (opaque-identity -1) :end 5))
 678  (assert-error (remove #\a string :start 4 :end 2))
 679  (assert-error (remove #\a string :start 6 :end 9))
 680  (assert (equal (remove-if #'alpha-char-p string :start 0 :end nil) ""))
 681  (assert (equal (remove-if #'alpha-char-p string :start 0 :end 5) ""))
 682  (assert-error
 683   (remove-if #'alpha-char-p string :start 0 :end 6))
 684  (assert-error
 685   (remove-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 686  (assert-error
 687   (remove-if #'alpha-char-p string :start 4 :end 2))
 688  (assert-error
 689   (remove-if #'alpha-char-p string :start 6 :end 9))
 690  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end nil)
 691                 "aaaaa"))
 692  (assert (equal (remove-if-not #'alpha-char-p string :start 0 :end 5)
 693                 "aaaaa"))
 694  (assert-error
 695   (remove-if-not #'alpha-char-p string :start 0 :end 6))
 696  (assert-error
 697   (remove-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 698  (assert-error
 699   (remove-if-not #'alpha-char-p string :start 4 :end 2))
 700  (assert-error
 701   (remove-if-not #'alpha-char-p string :start 6 :end 9)))
 702 (sequence-bounding-indices-test
 703  (format t "~&/... DELETE, DELETE-IF, DELETE-IF-NOT")
 704  (assert (equal (delete #\a string :start 0 :end nil) ""))
 705  (reset)
 706  (assert (equal (delete #\a string :start 0 :end 5) ""))
 707  (reset)
 708  (assert-error (delete #\a string :start 0 :end 6))
 709  (reset)
 710  (assert-error (delete #\a string :start (opaque-identity -1) :end 5))
 711  (reset)
 712  (assert-error (delete #\a string :start 4 :end 2))
 713  (reset)
 714  (assert-error (delete #\a string :start 6 :end 9))
 715  (reset)
 716  (assert (equal (delete-if #'alpha-char-p string :start 0 :end nil) ""))
 717  (reset)
 718  (assert (equal (delete-if #'alpha-char-p string :start 0 :end 5) ""))
 719  (reset)
 720  (assert-error
 721   (delete-if #'alpha-char-p string :start 0 :end 6))
 722  (reset)
 723  (assert-error
 724   (delete-if #'alpha-char-p string :start (opaque-identity -1) :end 5))
 725  (reset)
 726  (assert-error
 727   (delete-if #'alpha-char-p string :start 4 :end 2))
 728  (reset)
 729  (assert-error
 730   (delete-if #'alpha-char-p string :start 6 :end 9))
 731  (reset)
 732  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end nil)
 733                 "aaaaa"))
 734  (reset)
 735  (assert (equal (delete-if-not #'alpha-char-p string :start 0 :end 5)
 736                 "aaaaa"))
 737  (reset)
 738  (assert-error
 739   (delete-if-not #'alpha-char-p string :start 0 :end 6))
 740  (reset)
 741  (assert-error
 742   (delete-if-not #'alpha-char-p string :start (opaque-identity -1) :end 5))
 743  (reset)
 744  (assert-error
 745   (delete-if-not #'alpha-char-p string :start 4 :end 2))
 746  (reset)
 747  (assert-error
 748   (delete-if-not #'alpha-char-p string :start 6 :end 9)))
 749
 750 ;;; Function REMOVE-DUPLICATES, DELETE-DUPLICATES
 751 (sequence-bounding-indices-test
 752  (format t "~&/Function REMOVE-DUPLICATES, DELETE-DUPLICATES")
 753  (assert (string= (remove-duplicates string :start 0 :end 5) "a"))
 754  (assert (string= (remove-duplicates string :start 0 :end nil) "a"))
 755  (assert-error (remove-duplicates string :start 0 :end 6))
 756  (assert-error (remove-duplicates string :start (opaque-identity -1) :end 5))
 757  (assert-error (remove-duplicates string :start 4 :end 2))
 758  (assert-error (remove-duplicates string :start 6 :end 9))
 759  (assert (string= (delete-duplicates string :start 0 :end 5) "a"))
 760  (reset)
 761  (assert (string= (delete-duplicates string :start 0 :end nil) "a"))
 762  (reset)
 763  (assert-error (delete-duplicates string :start 0 :end 6))
 764  (reset)
 765  (assert-error (delete-duplicates string :start (opaque-identity -1) :end 5))
 766  (reset)
 767  (assert-error (delete-duplicates string :start 4 :end 2))
 768  (reset)
 769  (assert-error (delete-duplicates string :start 6 :end 9)))
 770
 771 ;;; Function REPLACE
 772 (sequence-bounding-indices-test
 773  (format t "~&/Function REPLACE")
 774  (assert (string= (replace string "bbbbb" :start1 0 :end1 5) "bbbbb"))
 775  (assert (string= (replace (copy-seq "ccccc")
 776                            string
 777                            :start2 0 :end2 nil) "bbbbb"))
 778  (assert-error (replace string "ccccc" :start1 0 :end1 6))
 779  (assert-error (replace string "ccccc" :start2 (opaque-identity -1) :end2 5))
 780  (assert-error (replace string "ccccc" :start1 4 :end1 2))
 781  (assert-error (replace string "ccccc" :start1 6 :end1 9)))
 782
 783 ;;; Function SEARCH
 784 (sequence-bounding-indices-test
 785  (format t "~&/Function SEARCH")
 786  (assert (= (search "aa" string :start2 0 :end2 5) 0))
 787  (assert (null (search string "aa" :start1 0 :end2 nil)))
 788  (assert-error (search "aa" string :start2 0 :end2 6))
 789  (assert-error (search "aa" string :start2 (opaque-identity -1) :end2 5))
 790  (assert-error (search "aa" string :start2 4 :end2 2))
 791  (assert-error (search "aa" string :start2 6 :end2 9)))
 792
 793 ;;; Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE,
 794 ;;; NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE
 795 (defmacro string-case-frob (fn)
 796   `(progn
 797      (assert-error (,fn string :start 0 :end 6))
 798      (assert-error (,fn string :start (opaque-identity -1) :end 5))
 799      (assert-error (,fn string :start 4 :end 2))
 800      (assert-error (,fn string :start 6 :end 9))))
 801
 802 (sequence-bounding-indices-test
 803  (format t "~&/Function STRING-UPCASE, STRING-DOWNCASE, STRING-CAPITALIZE, ...")
 804  (string-case-frob string-upcase)
 805  (string-case-frob string-downcase)
 806  (string-case-frob string-capitalize)
 807  (format t "~&/... NSTRING-UPCASE, NSTRING-DOWNCASE, NSTRING-CAPITALIZE")
 808  (string-case-frob nstring-upcase)
 809  (string-case-frob nstring-downcase)
 810  (string-case-frob nstring-capitalize))
 811
 812 ;;; Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=,
 813 ;;; STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, STRING-GREATERP,
 814 ;;; STRING-NOT-GREATERP, STRING-NOT-LESSP
 815 (defmacro string-predicate-frob (fn)
 816   `(progn
 817      (,fn string "abcde" :start1 0 :end1 5)
 818      (,fn "fghij" string :start2 0 :end2 nil)
 819      (assert-error (,fn string "klmno"
 820                         :start1 0 :end1 6))
 821      (assert-error (,fn "pqrst" string
 822                         :start2 (opaque-identity -1) :end2 5))
 823      (assert-error (,fn "uvwxy" string
 824                         :start1 4 :end1 2))
 825      (assert-error (,fn string "z" :start2 6 :end2 9))))
 826 (sequence-bounding-indices-test
 827  (format t "~&/Function STRING=, STRING/=, STRING<, STRING>, STRING<=, STRING>=, ...")
 828  (string-predicate-frob string=)
 829  (string-predicate-frob string/=)
 830  (string-predicate-frob string<)
 831  (string-predicate-frob string>)
 832  (string-predicate-frob string<=)
 833  (string-predicate-frob string>=))
 834 (sequence-bounding-indices-test
 835  (format t "~&/... STRING-EQUAL, STRING-NOT-EQUAL, STRING-LESSP, ...")
 836  (string-predicate-frob string-equal)
 837  (string-predicate-frob string-not-equal)
 838  (string-predicate-frob string-lessp))
 839 (sequence-bounding-indices-test
 840  (format t "~&/... STRING-GREATERP, STRING-NOT-GREATERP, STRING-NOT-LESSP")
 841  (string-predicate-frob string-greaterp)
 842  (string-predicate-frob string-not-greaterp)
 843  (string-predicate-frob string-not-lessp))
 844
 845 ;;; Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT,
 846 ;;; NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT
 847 (sequence-bounding-indices-test
 848  (format t "~&/Function SUBSTITUTE, SUBSTITUTE-IF, SUBSTITUTE-IF-NOT, ...")
 849  (assert (string= (substitute #\b #\a string :start 0 :end 5) "bbbbb"))
 850  (assert (string= (substitute #\c #\a string :start 0 :end nil)
 851                   "ccccc"))
 852  (assert-error (substitute #\b #\a string :start 0 :end 6))
 853  (assert-error (substitute #\b #\a string :start (opaque-identity -1) :end 5))
 854  (assert-error (substitute #\b #\a string :start 4 :end 2))
 855  (assert-error (substitute #\b #\a string :start 6 :end 9))
 856  (assert (string= (substitute-if #\b #'alpha-char-p string
 857                                  :start 0 :end 5)
 858                   "bbbbb"))
 859  (assert (string= (substitute-if #\c #'alpha-char-p string
 860                                  :start 0 :end nil)
 861                   "ccccc"))
 862  (assert-error (substitute-if #\b #'alpha-char-p string
 863                               :start 0 :end 6))
 864  (assert-error (substitute-if #\b #'alpha-char-p string
 865                               :start (opaque-identity -1) :end 5))
 866  (assert-error (substitute-if #\b #'alpha-char-p string
 867                               :start 4 :end 2))
 868  (assert-error (substitute-if #\b #'alpha-char-p string
 869                               :start 6 :end 9))
 870  (assert (string= (substitute-if-not #\b #'alpha-char-p string
 871                                      :start 0 :end 5)
 872                   "aaaaa"))
 873  (assert (string= (substitute-if-not #\c #'alpha-char-p string
 874                                      :start 0 :end nil)
 875                   "aaaaa"))
 876  (assert-error (substitute-if-not #\b #'alpha-char-p string
 877                                   :start 0 :end 6))
 878  (assert-error (substitute-if-not #\b #'alpha-char-p string
 879                                   :start (opaque-identity -1) :end 5))
 880  (assert-error (substitute-if-not #\b #'alpha-char-p string
 881                                   :start 4 :end 2))
 882  (assert-error (substitute-if-not #\b #'alpha-char-p string
 883                                   :start 6 :end 9)))
 884 (sequence-bounding-indices-test
 885  (format t "~&/... NSUBSTITUTE, NSUBSTITUTE-IF, NSUBSTITUTE-IF-NOT")
 886  (assert (string= (nsubstitute #\b #\a string :start 0 :end 5) "bbbbb"))
 887  (reset)
 888  (assert (string= (nsubstitute #\c #\a string :start 0 :end nil)
 889                   "ccccc"))
 890  (reset)
 891  (assert-error (nsubstitute #\b #\a string :start 0 :end 6))
 892  (reset)
 893  (assert-error (nsubstitute #\b #\a string :start (opaque-identity -1) :end 5))
 894  (reset)
 895  (assert-error (nsubstitute #\b #\a string :start 4 :end 2))
 896  (reset)
 897  (assert-error (nsubstitute #\b #\a string :start 6 :end 9))
 898  (reset)
 899  (assert (string= (nsubstitute-if #\b #'alpha-char-p string
 900                                   :start 0 :end 5)
 901                   "bbbbb"))
 902  (reset)
 903  (assert (string= (nsubstitute-if #\c #'alpha-char-p string
 904                                   :start 0 :end nil)
 905                   "ccccc"))
 906  (reset)
 907  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 908                                :start 0 :end 6))
 909  (reset)
 910  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 911                                :start (opaque-identity -1) :end 5))
 912  (reset)
 913  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 914                                :start 4 :end 2))
 915  (reset)
 916  (assert-error (nsubstitute-if #\b #'alpha-char-p string
 917                                :start 6 :end 9))
 918  (reset)
 919  (assert (string= (nsubstitute-if-not #\b #'alpha-char-p string
 920                                       :start 0 :end 5)
 921                   "aaaaa"))
 922  (reset)
 923  (assert (string= (nsubstitute-if-not #\c #'alpha-char-p string
 924                                       :start 0 :end nil)
 925                   "aaaaa"))
 926  (reset)
 927  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 928                                    :start 0 :end 6))
 929  (reset)
 930  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 931                                    :start (opaque-identity -1) :end 5))
 932  (reset)
 933  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 934                                    :start 4 :end 2))
 935  (reset)
 936  (assert-error (nsubstitute-if-not #\b #'alpha-char-p string
 937                                    :start 6 :end 9)))
 938 ;;; Function WRITE-STRING, WRITE-LINE
 939 (sequence-bounding-indices-test
 940  (format t "~&/Function WRITE-STRING, WRITE-LINE")
 941  (write-string string *standard-output* :start 0 :end 5)
 942  (write-string string *standard-output* :start 0 :end nil)
 943  (assert-error (write-string string *standard-output*
 944                              :start 0 :end 6))
 945  (assert-error (write-string string *standard-output*
 946                              :start (opaque-identity -1) :end 5))
 947  (assert-error (write-string string *standard-output*
 948                              :start 4 :end 2))
 949  (assert-error (write-string string *standard-output*
 950                              :start 6 :end 9))
 951  (write-line string *standard-output* :start 0 :end 5)
 952  (write-line string *standard-output* :start 0 :end nil)
 953  (assert-error (write-line string *standard-output*
 954                            :start 0 :end 6))
 955  (assert-error (write-line string *standard-output*
 956                            :start (opaque-identity -1) :end 5))
 957  (assert-error (write-line string *standard-output*
 958                            :start 4 :end 2))
 959  (assert-error (write-line string *standard-output*
 960                            :start 6 :end 9)))
 961
 962 ;;; Macro WITH-INPUT-FROM-STRING
 963 (sequence-bounding-indices-test
 964  (format t "~&/Macro WITH-INPUT-FROM-STRING")
 965  (with-input-from-string (s string :start 0 :end 5)
 966    (assert (char= (read-char s) #\a)))
 967  (with-input-from-string (s string :start 0 :end nil)
 968    (assert (char= (read-char s) #\a)))
 969  (assert-error
 970   (with-input-from-string (s string :start 0 :end 6)
 971     (read-char s)))
 972  (assert-error
 973   (with-input-from-string (s string :start (opaque-identity -1) :end 5)
 974     (read-char s)))
 975  (assert-error
 976   (with-input-from-string (s string :start 4 :end 2)
 977     (read-char s)))
 978  (assert-error
 979   (with-input-from-string (s string :start 6 :end 9)
 980     (read-char s))))
 981 \f
 982 ;;; testing bit-bashing according to _The Practice of Programming_
 983 (defun fill-bytes-for-testing (bitsize)
 984   "Return a list of 'bytes' of type (MOD BITSIZE)."
 985   (remove-duplicates (list 0
 986                            (1- (ash 1 (1- bitsize)))
 987                            (ash 1 (1- bitsize))
 988                            (1- (ash 1 bitsize)))))
 989
 990 (defun fill-with-known-value (value size &rest vectors)
 991   (dolist (vec vectors)
 992     (dotimes (i size)
 993       (setf (aref vec i) value))))
 994
 995 (defun collect-fill-amounts (n-power)
 996   (remove-duplicates
 997    (loop for i from 0 upto n-power
 998          collect (1- (expt 2 i))
 999          collect (expt 2 i)
1000          collect (1+ (expt 2 i)))))
1001
1002 (defun test-fill-bashing (bitsize padding-amount n-power)
1003   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
1004          (standard (make-array size :element-type `(unsigned-byte ,bitsize)))
1005          (bashed (make-array size :element-type `(unsigned-byte ,bitsize)))
1006          (fill-amounts (collect-fill-amounts n-power))
1007          (bash-function (intern (format nil "UB~A-BASH-FILL" bitsize)
1008                                 (find-package "SB-KERNEL"))))
1009     (format t "~&/Function ~A..." bash-function)
1010     (loop for offset from padding-amount below (* 2 padding-amount) do
1011           (dolist (c (fill-bytes-for-testing bitsize))
1012             (dolist (n fill-amounts)
1013               (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) n
1014                                      standard bashed)
1015               ;; fill vectors
1016               ;; a) the standard slow way
1017               (locally (declare (notinline fill))
1018                 (fill standard c :start offset :end (+ offset n)))
1019               ;; b) the blazingly fast way
1020               (let ((value (loop for i from 0 by bitsize
1021                                  until (= i sb-vm:n-word-bits)
1022                                  sum (ash c i))))
1023                 (funcall bash-function value bashed offset n))
1024               ;; check for errors
1025               (when (mismatch standard bashed)
1026                 (format t "Test with offset ~A, fill ~A and length ~A failed.~%"
1027                         offset c n)
1028                 (format t "Mismatch: ~A ~A~%"
1029                         (subseq standard 0 (+ offset n 1))
1030                         (subseq bashed 0 (+ offset n 1)))
1031                 (return-from test-fill-bashing nil))))
1032           finally (return t))))
1033
1034 (defun test-copy-bashing (bitsize padding-amount n-power)
1035   (let* ((size (+ (* padding-amount 2) (expt 2 n-power) (* padding-amount 2)))
1036          (standard-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
1037          (bashed-dst (make-array size :element-type `(unsigned-byte ,bitsize)))
1038          (source (make-array size :element-type `(unsigned-byte ,bitsize)))
1039          (fill-amounts (collect-fill-amounts n-power))
1040          (bash-function (intern (format nil "UB~A-BASH-COPY" bitsize)
1041                                 (find-package "SB-KERNEL"))))
1042     (format t "~&/Function ~A..." bash-function)
1043     (do ((source-offset padding-amount (1+ source-offset)))
1044         ((>= source-offset (* padding-amount 2))
1045          ;; success!
1046          t)
1047      (do ((target-offset padding-amount (1+ target-offset)))
1048          ((>= target-offset (* padding-amount 2)))
1049        (dolist (c (fill-bytes-for-testing bitsize))
1050          (dolist (n fill-amounts)
1051            (fill-with-known-value (mod (lognot c) (ash 1 bitsize)) size
1052                                   source standard-dst bashed-dst)
1053            ;; fill with test data
1054            (fill source c :start source-offset :end (+ source-offset n))
1055            ;; copy filled test data to test vectors
1056            ;; a) the slow way
1057            (replace standard-dst source
1058                     :start1 target-offset :end1 (+ target-offset n)
1059                     :start2 source-offset :end2 (+ source-offset n))
1060            ;; b) the blazingly fast way
1061            (funcall bash-function source source-offset
1062                     bashed-dst target-offset n)
1063            ;; check for errors
1064            (when (mismatch standard-dst bashed-dst)
1065              (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1066                      target-offset source-offset c n)
1067              (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1068                      standard-dst
1069                      bashed-dst)
1070              (return-from test-copy-bashing nil))))))))
1071
1072 ;; Too slow for the interpreter
1073 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1074 (loop for i = 1 then (* i 2) do
1075      ;; the bare '13' here is fairly arbitrary, except that it's been
1076      ;; reduced from '32', which made the tests take aeons; '8' provides
1077      ;; a good range of lengths over which to fill and copy, which
1078      ;; should tease out most errors in the code (if any exist).  (It
1079      ;; also makes this part of the test suite finish reasonably
1080      ;; quickly.)
1081      (assert (time (test-fill-bashing i 13 8)))
1082      (assert (time (test-copy-bashing i 13 8)))
1083      until (= i sb-vm:n-word-bits))
1084
1085 (defun test-inlined-bashing (bitsize)
1086   ;; We have to compile things separately for each bitsize so the
1087   ;; compiler will work out the array type and trigger the REPLACE
1088   ;; transform.
1089   (let ((lambda-form
1090          `(lambda ()
1091             (let* ((n-elements-per-word ,(truncate sb-vm:n-word-bits bitsize))
1092                    (size (* 3 n-elements-per-word))
1093                    (standard-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1094                    (bashed-dst (make-array size :element-type '(unsigned-byte ,bitsize)))
1095                    (source (make-array size :element-type '(unsigned-byte ,bitsize))))
1096               (declare (type (simple-array (unsigned-byte ,bitsize) (*))
1097                              source standard-dst bashed-dst))
1098               (do ((i 0 (1+ i))
1099                    (offset n-elements-per-word (1+ offset)))
1100                   ((>= offset (* 2 n-elements-per-word)) t)
1101                 (dolist (c (fill-bytes-for-testing ,bitsize))
1102                   (fill-with-known-value (mod (lognot c) (ash 1 ,bitsize)) size
1103                                          source standard-dst bashed-dst)
1104                   ;; fill with test-data
1105                   (fill source c :start offset :end (+ offset n-elements-per-word))
1106                   ;; copy filled data to test vectors
1107                   ;;
1108                   ;; a) the slow way (which is actually fast, since this
1109                   ;; should be transformed into UB*-BASH-COPY)
1110                   (replace standard-dst source
1111                            :start1 (- offset n-elements-per-word i)
1112                            :start2 (- offset n-elements-per-word i)
1113                            :end1 offset :end2 offset)
1114                   ;; b) the fast way--we fold the
1115                   ;; :START{1,2} arguments above ourselves
1116                   ;; to trigger the REPLACE transform
1117                   (replace bashed-dst source
1118                            :start1 0 :start2 0 :end1 offset :end2 offset)
1119                   ;; check for errors
1120                   (when (or (mismatch standard-dst bashed-dst)
1121                             ;; trigger COPY-SEQ transform
1122                             (mismatch (copy-seq standard-dst) bashed-dst)
1123                             ;; trigger SUBSEQ transform
1124                             (mismatch (subseq standard-dst (- offset n-elements-per-word i))
1125                                       bashed-dst))
1126                     (format t "Test with target-offset ~A, source-offset ~A, fill ~A, and length ~A failed.~%"
1127                             0 0 c offset)
1128                     (format t "Mismatch:~% correct ~A~% actual  ~A~%"
1129                             standard-dst
1130                             bashed-dst)
1131                     (return-from nil nil))))))))
1132     (funcall (compile nil lambda-form))))
1133
1134 #+#.(cl:if (cl:eq sb-ext:*evaluator-mode* :compile) '(and) '(or))
1135 (loop for i = 1 then (* i 2) do
1136       (assert (test-inlined-bashing i))
1137       until (= i sb-vm:n-word-bits))
1138 \f
1139 ;;; tests from the Sacla test suite via Eric Marsden, 2007-05-07
1140 (remove-duplicates (vector 1 2 2 1) :test-not (lambda (a b) (not (= a b))))
1141
1142 (delete-duplicates (vector #\a #\b #\c #\a)
1143                    :test-not (lambda (a b) (not (char-equal a b))))
1144
1145 ;;; FILL on lists
1146 (let ((l (list 1 2 3)))
1147   (assert (eq l (fill l 0 :start 1 :end 2)))
1148   (assert (equal l '(1 0 3)))
1149   (assert (eq l (fill l 'x :start 2 :end 3)))
1150   (assert (equal l '(1 0 x)))
1151   (assert (eq l (fill l 'y :start 1)))
1152   (assert (equal l '(1 y y)))
1153   (assert (eq l (fill l 'z :end 2)))
1154   (assert (equal l '(z z y)))
1155   (assert (eq l (fill l 1)))
1156   (assert (equal l '(1 1 1)))
1157   (assert-error (fill l 0 :start 4))
1158   (assert-error (fill l 0 :end 4))
1159   (assert-error (fill l 0 :start 2 :end 1)))
1160
1161 ;;; Both :TEST and :TEST-NOT provided
1162 (with-test (:name :test-and-test-not-to-adjoin)
1163   (multiple-value-bind (fun failure-p warnings)
1164       (checked-compile `(lambda (item test test-not)
1165                           (adjoin item '(1 2 3 :foo)
1166                                   :test test
1167                                   :test-not test-not))
1168                        :allow-warnings t)
1169     (declare (ignore failure-p))
1170     (assert (= 1 (length warnings)))
1171     (assert-error (funcall fun 1 #'eql (complement #'eql)))))
1172 \f
1173 ;;; tests of deftype types equivalent to STRING or SIMPLE-STRING
1174 (deftype %string () 'string)
1175 (deftype %simple-string () 'simple-string)
1176 (deftype string-3 () '(string 3))
1177 (deftype simple-string-3 () '(simple-string 3))
1178
1179 (with-test (:name :user-defined-string-types-map-etc)
1180   (dolist (type '(%string %simple-string string-3 simple-string-3))
1181     (assert (string= "foo" (coerce '(#\f #\o #\o) type)))
1182     (assert (string= "foo" (map type 'identity #(#\f #\o #\o))))
1183     (assert (string= "foo" (merge type (copy-seq '(#\o)) (copy-seq '(#\f #\o))
1184                                   'char<)))
1185     (assert (string= "foo" (concatenate type '(#\f) "oo")))
1186     (assert (string= "ooo" (make-sequence type 3 :initial-element #\o)))))
1187 (with-test (:name :user-defined-string-types-map-etc-error)
1188   (dolist (type '(string-3 simple-string-3))
1189     (assert-error (coerce '(#\q #\u #\u #\x) type))
1190     (assert-error (map type 'identity #(#\q #\u #\u #\x)))
1191     (assert-error (merge type (copy-seq '(#\q #\x)) (copy-seq "uu") 'char<))
1192     (assert-error (concatenate type "qu" '(#\u #\x)))
1193     (assert-error (make-sequence type 4 :initial-element #\u))))
1194
1195 (defun test-bit-position (size set start end from-end res)
1196   (let ((v (make-array size :element-type 'bit :initial-element 0)))
1197     (dolist (i set)
1198       (setf (bit v i) 1))
1199     (dolist (f (list (compile nil
1200                               `(lambda (b v s e fe)
1201                                  (position b (the bit-vector v) :start s :end e :from-end fe)))
1202                      (compile nil
1203                               `(lambda (b v s e fe)
1204                                  (assert (eql b 1))
1205                                  (position 1 (the bit-vector v) :start s :end e :from-end fe)))
1206                      (compile nil
1207                               `(lambda (b v s e fe)
1208                                  (position b (the vector v) :start s :end e :from-end fe)))))
1209       (let ((got (funcall f 1 v start end from-end)))
1210         (unless (eql res got)
1211           (cerror "Continue" "POSITION 1, Wanted ~S, got ~S.~%  size = ~S, set = ~S, from-end = ~S"
1212                   res got
1213                   size set from-end)))))
1214   (let ((v (make-array size :element-type 'bit :initial-element 1)))
1215     (dolist (i set)
1216       (setf (bit v i) 0))
1217     (dolist (f (list (compile nil
1218                               `(lambda (b v s e fe)
1219                                  (position b (the bit-vector v) :start s :end e :from-end fe)))
1220                      (compile nil
1221                               `(lambda (b v s e fe)
1222                                  (assert (eql b 0))
1223                                  (position 0 (the bit-vector v) :start s :end e :from-end fe)))
1224                      (compile nil
1225                               `(lambda (b v s e fe)
1226                                  (position b (the vector v) :start s :end e :from-end fe)))))
1227       (let ((got (funcall f 0 v start end from-end)))
1228         (unless (eql res got)
1229           (cerror "Continue" "POSITION 0, Wanted ~S, got ~S.~%  size = ~S, set = ~S, from-end = ~S"
1230                   res got
1231                   size set from-end))))))
1232
1233 (defun random-test-bit-position (n)
1234   (loop repeat n
1235         do (let* ((vector (make-array (+ 2 (random 5000)) :element-type 'bit))
1236                   (offset (random (1- (length vector))))
1237                   (size (1+ (random (- (length vector) offset))))
1238                   (disp (make-array size :element-type 'bit :displaced-to vector
1239                                          :displaced-index-offset offset)))
1240              (assert (plusp size))
1241              (loop repeat 10
1242                    do (setf (bit vector (random (length vector))) 1))
1243              (flet ((test (orig)
1244                       (declare (bit-vector orig))
1245                       (let ((copy (coerce orig 'simple-vector))
1246                             (p0 (random (length orig)))
1247                             (p1 (1+ (random (length orig)))))
1248                         (multiple-value-bind (s e)
1249                             (if (> p1 p0)
1250                                 (values p0 p1)
1251                                 (values p1 p0))
1252                           (assert (eql (position 1 copy :start s :end e)
1253                                        (position 1 orig :start s :end e)))
1254                           (assert (eql (position 1 copy :start s :end e :from-end t)
1255                                        (position 1 orig :start s :end e :from-end t)))))))
1256                (test vector)
1257                (test disp)))))
1258
1259 (with-test (:name :bit-position)
1260   (test-bit-position 0 (list) 0 0 nil nil)
1261   (test-bit-position 0 (list) 0 0 t nil)
1262   (test-bit-position 1 (list 0) 0 0 nil nil)
1263   (test-bit-position 1 (list 0) 0 0 t nil)
1264   (test-bit-position 1 (list 0) 0 1 nil 0)
1265   (test-bit-position 1 (list 0) 0 1 t 0)
1266   (test-bit-position 10 (list 0 1) 0 1 nil 0)
1267   (test-bit-position 10 (list 0 1) 1 1 nil nil)
1268   (test-bit-position 10 (list 0 1) 0 1 t 0)
1269   (test-bit-position 10 (list 0 1) 1 1 t nil)
1270   (test-bit-position 10 (list 0 3) 1 4 nil 3)
1271   (test-bit-position 10 (list 0 3) 1 4 t 3)
1272   (test-bit-position 10 (list 0 3 6) 1 10 nil 3)
1273   (test-bit-position 10 (list 0 3 6) 1 10 t 6)
1274   (test-bit-position 1000 (list 128 700) 20 500 nil 128)
1275   (test-bit-position 1000 (list 128 700) 20 500 t 128)
1276   (test-bit-position 1000 (list 423 762) 200 800 nil 423)
1277   (test-bit-position 1000 (list 423 762) 200 800 t 762)
1278   (test-bit-position 1000 (list 298 299) 100 400 nil 298)
1279   (test-bit-position 1000 (list 298 299) 100 400 t 299))
1280
1281 (with-test (:name (:bit-position :random-test))
1282   (random-test-bit-position 10000))
1283
1284 ;; REVERSE and NREVERSE should assert that the returned value
1285 ;; from a generic sequence operation is of type SEQUENCE.
1286 (defclass bogus-reversal-seq (sequence standard-object) ())
1287 (defmethod sequence:reverse ((self bogus-reversal-seq))
1288   #2a((x y) (1 2)))
1289 (with-test (:name :generic-sequence-reverse)
1290   (assert-error (reverse (make-instance 'bogus-reversal-seq))))
1291
1292 (with-test (:name :abstract-base-sequence-satisfies-sequencep)
1293   (assert (typep (sb-pcl::class-prototype (find-class 'sequence)) 'sequence)))
1294
1295 (defvar *macro-invocations* 0)
1296 ;; in case someone adds more tests after this, don't mess up OPAQUE-IDENTITY
1297 (defun opaque-id-again (x) x)
1298 (define-compiler-macro opaque-id-again (x) (incf *macro-invocations*) x)
1299 (with-test (:name :mapfoo-admits-compiler-macros)
1300   (compile nil '(lambda (l) (mapcar #'opaque-id-again l)))
1301   (assert (= *macro-invocations* 1))
1302   (compile nil '(lambda (l) (some #'opaque-id-again l)))
1303   (assert (= *macro-invocations* 2)))
1304
1305 ;;; success