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53f3dd66f1
* etc/NEWS: Say why. * src/floatfns.c (Ffceiling, Fffloor, Ffround, Fftruncate): Require arg to be float. * test/src/floatfns-tests.el (fround-fixnum): Check this.
37 lines
1.4 KiB
EmacsLisp
37 lines
1.4 KiB
EmacsLisp
;;; floatfns-tests.el --- tests for floating point operations
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;; Copyright 2017 Free Software Foundation, Inc.
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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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(require 'ert)
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(ert-deftest divide-extreme-sign ()
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(should-error (ceiling most-negative-fixnum -1.0))
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(should-error (floor most-negative-fixnum -1.0))
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(should-error (round most-negative-fixnum -1.0))
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(should-error (truncate most-negative-fixnum -1.0)))
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(ert-deftest logb-extreme-fixnum ()
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(should (= (logb most-negative-fixnum) (1+ (logb most-positive-fixnum)))))
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(ert-deftest fround-fixnum ()
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(should-error (ffloor 0) :type 'wrong-type-argument)
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(should-error (fceiling 0) :type 'wrong-type-argument)
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(should-error (ftruncate 0) :type 'wrong-type-argument)
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(should-error (fround 0) :type 'wrong-type-argument))
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(provide 'floatfns-tests)
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