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30a1d5da7a
* test/manual/image-circular-tests.el: Remove a stray copy of image-tests.el that was appended to this file. Found by its duplicate copyright notice.
65 lines
2.4 KiB
EmacsLisp
65 lines
2.4 KiB
EmacsLisp
;;; image-circular-tests.el --- test image functions with circular objects
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;; Copyright (C) 2019, 2021 Free Software Foundation, Inc.
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;; Author: Pip Cet <pipcet@gmail.com>
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;; Keywords: internal
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;; Human-Keywords: internal
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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 <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(require 'ert)
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(ert-deftest image-test-duplicate-keywords ()
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"Test that duplicate keywords in an image spec lead to rejection."
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(should-error (image-size `(image :type xbm :type xbm :width 1 :height 1
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:data ,(bool-vector t))
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t)))
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(ert-deftest image-test-circular-plist ()
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"Test that a circular image spec is rejected."
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(should-error
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(let ((l `(image :type xbm :width 1 :height 1 :data ,(bool-vector t))))
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(setcdr (last l) '#1=(:invalid . #1#))
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(image-size l t))))
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(ert-deftest image-test-:type-property-value ()
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"Test that :type is allowed as a property value in an image spec."
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(should (equal (image-size `(image :dummy :type :type xbm :width 1 :height 1
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:data ,(bool-vector t))
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t)
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(cons 1 1))))
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(ert-deftest image-test-circular-specs ()
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"Test that circular image spec property values do not cause infinite recursion."
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(should
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(let* ((circ1 (cons :dummy nil))
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(circ2 (cons :dummy nil))
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(spec1 `(image :type xbm :width 1 :height 1
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:data ,(bool-vector 1) :ignored ,circ1))
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(spec2 `(image :type xbm :width 1 :height 1
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:data ,(bool-vector 1) :ignored ,circ2)))
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(setcdr circ1 circ1)
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(setcdr circ2 circ2)
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(and (equal (image-size spec1 t) (cons 1 1))
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(equal (image-size spec2 t) (cons 1 1))))))
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(provide 'image-circular-tests)
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;;; image-circular-tests.el ends here.
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