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890
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1 ;; Copyright (C) 1998 Free Software Foundation, Inc.
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2
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3 ;; Author: Mike Sperber <mike@xemacs.org>
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4 ;; Maintainer: Mike Sperber <mike@xemacs.org>
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5 ;; Created: 2002
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6 ;; Keywords: tests, database
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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23 ;; 02111-1307, USA.
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24
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25 ;;; Synched up with: Not in FSF.
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26
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27 ;;; Commentary:
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28
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29 ;;; Test implementation of weak boxes and ephemerons
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30 ;;; See test-harness.el
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31
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32 (condition-case err
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33 (require 'test-harness)
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34 (file-error
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35 (when (and (boundp 'load-file-name) (stringp load-file-name))
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36 (push (file-name-directory load-file-name) load-path)
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37 (require 'test-harness))))
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38
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39 (garbage-collect)
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40 (let ((w (make-weak-box (cons 2 3))))
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41 (Assert (equal (cons 2 3) (weak-box-ref w)))
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42 (garbage-collect)
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43 (Assert (not (weak-box-ref w))))
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44
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45 (garbage-collect)
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46
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47 (let* ((p (cons 3 4))
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48 (finalized-p nil)
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49 (eph1 (make-ephemeron (cons 1 2) p
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50 '(lambda (value)
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51 (setq finalized-p t))))
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52 (eph2 (make-ephemeron p p)))
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53 (Assert (eq p (ephemeron-ref (make-ephemeron (cons 1 2) p))))
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54 (Assert (ephemeron-p (make-ephemeron (cons 1 2) p)))
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55
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56 (garbage-collect)
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57 (garbage-collect) ; ensure the post-gc hook runs
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58
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59 (Assert finalized-p)
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60 (Assert (not (ephemeron-ref eph1)))
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61
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62 (garbage-collect)
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63
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64 (Assert (eq p (ephemeron-ref eph2))))
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65
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