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15ddf7a6f2
2015-03-03 Daniel Colascione <dancol@dancol.org> * alloc.c (syms_of_alloc): Rename `gc-precise-p' to `gc-precise'. 2015-03-03 Daniel Colascione <dancol@dancol.org> * automated/finalizer-tests.el (finalizer-basic) (finalizer-circular-reference, finalizer-cross-reference) (finalizer-error): Rename `gc-precise-p' to `gc-precise'. * automated/generator-tests.el (cps-test-iter-close-finalizer): Rename `gc-precise-p' to `gc-precise'.
83 lines
2.6 KiB
EmacsLisp
83 lines
2.6 KiB
EmacsLisp
;;; finalizer-tests.el --- Finalizer tests -*- lexical-binding: t -*-
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;; Copyright (C) 2015 Free Software Foundation, Inc.
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;; Author: Daniel Colascione <dancol@dancol.org>
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;; Keywords:
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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(require 'ert)
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(require 'cl-lib)
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(ert-deftest finalizer-basic ()
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"Test that finalizers run at all."
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(skip-unless gc-precise)
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(let* ((finalized nil)
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(finalizer (make-finalizer (lambda () (setf finalized t)))))
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(garbage-collect)
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(should (equal finalized nil))
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(setf finalizer nil)
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(garbage-collect)
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(should (equal finalized t))))
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(ert-deftest finalizer-circular-reference ()
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"Test references from a callback to a finalizer."
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(skip-unless gc-precise)
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(let ((finalized nil))
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(let* ((value nil)
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(finalizer (make-finalizer (lambda () (setf finalized value)))))
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(setf value finalizer)
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(setf finalizer nil))
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(garbage-collect)
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(should finalized)))
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(ert-deftest finalizer-cross-reference ()
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"Test that between-finalizer references do not prevent collection."
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(skip-unless gc-precise)
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(let ((d nil) (fc 0))
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(let* ((f1-data (cons nil nil))
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(f2-data (cons nil nil))
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(f1 (make-finalizer
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(lambda () (cl-incf fc) (setf d f1-data))))
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(f2 (make-finalizer
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(lambda () (cl-incf fc) (setf d f2-data)))))
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(setcar f1-data f2)
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(setcar f2-data f1))
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(garbage-collect)
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(should (equal fc 2))))
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(ert-deftest finalizer-error ()
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"Test that finalizer errors are suppressed"
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(skip-unless gc-precise)
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(make-finalizer (lambda () (error "ABCDEF")))
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(garbage-collect)
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(with-current-buffer "*Messages*"
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(save-excursion
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(goto-char (point-max))
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(forward-line -1)
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(should (equal
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(buffer-substring (point) (point-at-eol))
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"finalizer failed: (error \"ABCDEF\")")))))
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(ert-deftest finalizer-object-type ()
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(should (equal (type-of (make-finalizer nil)) 'finalizer)))
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