tests/map-tests.impure.lisp

   1 ;;;; side-effectful tests of MAP-related stuff
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 (load "assertoid.lisp")
  15 (use-package "ASSERTOID")
  16
  17 ;;; tests of MAP
  18 ;;; FIXME: Move these into their own file.
  19 (assertoid (map 'vector #'+ '(1 2 3) '(30 20))
  20            :expected-equalp #(31 22))
  21 (assertoid (map 'list #'+ #(1 2) '(100) #(0) #(100 100))
  22            :expected-equal '(201))
  23
  24 (defmacro with-mapnil-test-fun (fun-name &body body)
  25   `(let ((reversed-result nil))
  26      (flet ((,fun-name (&rest rest)
  27               (push rest reversed-result)))
  28        ,@body
  29        (nreverse reversed-result))))
  30 (assertoid (with-mapnil-test-fun fun
  31              (map nil #'fun #(1)))
  32            :expected-equal '((1)))
  33 (assertoid (with-mapnil-test-fun fun
  34              (map nil #'fun #() '(1 2 3)))
  35            :expected-equal '())
  36 (assertoid (with-mapnil-test-fun fun
  37              (map nil #'fun #(a b c) '(alpha beta) '(aleph beth)))
  38            :expected-equal '((a alpha aleph) (b beta beth)))
  39
  40 ;;; Exercise MAP repeatedly on the same dataset by providing various
  41 ;;; combinations of sequence type arguments, declarations, and so
  42 ;;; forth.
  43 (defvar *list-1* '(1))
  44 (defvar *list-2* '(1 2))
  45 (defvar *list-3* '(1 2 3))
  46 (defvar *list-4* '(1 2 3 4))
  47 (defvar *vector-10* #(10))
  48 (defvar *vector-20* #(10 20))
  49 (defvar *vector-30* #(10 20 30))
  50 (defmacro maptest (&key
  51                    result-seq
  52                    fun-name
  53                    arg-seqs
  54                    arg-types
  55                    (result-element-types '(t)))
  56   (let ((reversed-assertoids nil))
  57     (dotimes (arg-type-index (expt 2 (length arg-types)))
  58       (labels (;; Arrange for EXPR to be executed.
  59                (arrange (expr)
  60                  (push expr reversed-assertoids))
  61                ;; We toggle the various type declarations on and
  62                ;; off depending on the bit pattern in ARG-TYPE-INDEX,
  63                ;; so that we get lots of different things to test.
  64                (eff-arg-type (i)
  65                  (if (and (< i (length arg-types))
  66                           (plusp (logand (expt 2 i)
  67                                          arg-type-index)))
  68                      (nth i arg-types)
  69                      t))
  70                (args-with-type-decls ()
  71                  (let ((reversed-result nil))
  72                    (dotimes (i (length arg-seqs) (nreverse reversed-result))
  73                      (push `(the ,(eff-arg-type i)
  74                               ,(nth i arg-seqs))
  75                            reversed-result)))))
  76         (dolist (fun `(',fun-name #',fun-name))
  77           (dolist (result-type (cons 'list
  78                                      (mapcan (lambda (et)
  79                                                `((vector ,et)
  80                                                  (simple-array ,et 1)))
  81                                              result-element-types)))
  82             (arrange
  83              `(assertoid (map ',result-type ,fun ,@(args-with-type-decls))
  84                          :expected-equalp (coerce ,result-seq
  85                                                   ',result-type)))))
  86         (arrange
  87          `(assertoid (mapcar (lambda (args) (apply #',fun-name args))
  88                              (with-mapnil-test-fun mtf
  89                                (map nil
  90                                     ;; (It would be nice to test MAP
  91                                     ;; NIL with function names, too,
  92                                     ;; but I can't see any concise way
  93                                     ;; to do it..)
  94                                     #'mtf
  95                                     ,@(args-with-type-decls))))
  96                      :expected-equal (coerce ,result-seq 'list)))))
  97     `(progn ,@(nreverse reversed-assertoids))))
  98 (maptest :result-seq '(2 3)
  99          :fun-name 1+
 100          :arg-seqs (*list-2*)
 101          :arg-types (list))
 102 (maptest :result-seq '(nil nil nil)
 103          :fun-name oddp
 104          :arg-seqs (*vector-30*)
 105          :arg-types (vector))
 106 (maptest :result-seq '(12 24)
 107          :fun-name +
 108          :arg-seqs (*list-2* *list-2* *vector-30*)
 109          :arg-types (list list vector))
 110
 111 ;;; success