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# Checking the unary operations. -*- Autotest -*-
# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2011, 2012,
# 2013 Free Software Foundation, Inc.
#
# This file is part of GNU libmatheval
#
# GNU libmatheval is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# GNU libmatheval is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU libmatheval. If not, see
# <http://www.gnu.org/licenses/>.
AT_BANNER([[Checking evaluating unary operations.]])
AT_SETUP([Check unary operations.])
AT_DATA([un_op.scm],
[[
(define f (evaluator-create "-5"))
(display (evaluator-evaluate-x f 0))
]])
AT_CHECK([matheval.sh un_op.scm], [ignore], [-5.0], [ignore])
AT_DATA([un_op.scm],
[[
(define f (evaluator-create "-x"))
(display (evaluator-evaluate-x f 1))
]])
AT_CHECK([matheval.sh un_op.scm], [ignore], [-1.0], [ignore])
AT_DATA([un_op.scm],
[[
(define f (evaluator-create "(-x)^3+4*-x"))
(define f_prim (evaluator-derivative-x f))
(display (evaluator-get-string f_prim))
]])
AT_CHECK([matheval.sh un_op.scm], [ignore], [(((-3)*((-x)^2))+((0*(-x))+(-4)))], [ignore])
AT_CLEANUP
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