tests/clos.pure.lisp

   1 ;;;; CLOS tests with no side effects
   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 (cl:in-package :cl-user)
  15
  16 ;;; not really a test for observable behaviour, but: make sure that
  17 ;;; all generic functions on startup have lambda lists known to the
  18 ;;; system, because some functionality (e.g. &key argument checking)
  19 ;;; depends on it.  The basic functionality is tested elsewhere, but
  20 ;;; this is to investigate the internals for possible inconsistency.
  21 (assert (null
  22          (let (collect)
  23            (sb-pcl::map-all-generic-functions
  24             (lambda (gf)
  25               (let ((arg-info (sb-pcl::gf-arg-info gf)))
  26                 (when (eq (sb-pcl::arg-info-lambda-list arg-info)
  27                           :no-lambda-list)
  28                   (push gf collect)))))
  29            (print (nreverse collect)))))
  30
  31 ;;; Regressing test for invalid slot specification error printing
  32 (multiple-value-bind (value err)
  33     (ignore-errors (macroexpand '(defclass foo () (frob (frob bar)))))
  34   (declare (ignore value))
  35   (assert (typep err 'simple-condition))
  36   (multiple-value-bind (value format-err)
  37       (ignore-errors (apply #'format nil
  38                             (simple-condition-format-control err)
  39                             (simple-condition-format-arguments err)))
  40     (declare (ignore value))
  41     (assert (not format-err))))
  42
  43 ;;; another not (user-)observable behaviour: make sure that
  44 ;;; sb-pcl::map-all-classes calls its function on each class once and
  45 ;;; exactly once.
  46 (let (result)
  47   (sb-pcl::map-all-classes (lambda (c) (push c result)))
  48   (assert (equal result (remove-duplicates result))))
  49
  50 ;;; this one's user-observable
  51 (with-test (:name :type-of-setf-class-name)
  52  (assert (typep #'(setf class-name) 'generic-function)))
  53
  54 ;;; CLHS 1.4.4.5.  We could test for this by defining methods
  55 ;;; (i.e. portably) but it's much easier using the MOP and
  56 ;;; MAP-ALL-CLASSES.
  57 (with-test (:name :check-standard-superclasses)
  58   (flet ((standardized-class-p (c)
  59            (and (class-name c)
  60                 (eq (symbol-package (class-name c))
  61                     (find-package :cl)))))
  62     (let (result)
  63       (sb-pcl::map-all-classes
  64        (lambda (c) (when (standardized-class-p c)
  65                      (let* ((cpl (sb-mop:class-precedence-list c))
  66                             (std (position (find-class 'standard-object) cpl))
  67                             (str (position (find-class 'structure-object) cpl))
  68                             (last (position-if
  69                                    #'standardized-class-p (butlast cpl)
  70                                    :from-end t)))
  71                        (when (and std str)
  72                          (push `(:and ,c) result))
  73                        (when (and str (< str last))
  74                          (push `(:str ,c) result))
  75                        (when (and std (< std last))
  76                          (push `(:std ,c) result))))))
  77       (assert (null result)))))
  78
  79 ;; No compiler-notes for non-constant slot-names in default policy.
  80 (handler-case
  81     (compile nil '(lambda (x y z)
  82                    (setf (slot-value x z)
  83                          (slot-value y z))))
  84   (sb-ext:compiler-note (e)
  85     (error e)))
  86
  87 (with-test (:name :slot-table-of-symbol-works)
  88   (assert (eq :win
  89               ;; the error that I want is about a missing slot,
  90               ;; not a missing method, so don't let the compiler turn
  91               ;; this into (funcall #'(SLOT-ACCESSOR :GLOBAL A READER)...)
  92               (handler-case (eval '(slot-value 'a 'a))
  93                 (simple-condition (c)
  94                   (and (search "slot ~S is missing"
  95                                (simple-condition-format-control c))
  96                        :win))))))