src/cpml/tests/test-utils.c

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007-2021  Nicola Fontana <ntd at entidi.it>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20
  21 #include <adg-test.h>
  22 #include <cpml.h>
  23 #include <math.h>
  24
  25
  26 static void
  27 _cpml_behavior_angle(void)
  28 {
  29     adg_assert_isapprox(0, cpml_angle(0));
  30     adg_assert_isapprox(0, cpml_angle(2 * M_PI));
  31     adg_assert_isapprox(M_PI, cpml_angle(M_PI));
  32     adg_assert_isapprox(M_PI, cpml_angle(3 * M_PI));
  33     adg_assert_isapprox(M_PI, cpml_angle(-M_PI));
  34     adg_assert_isapprox(M_PI, cpml_angle(-3 * M_PI));
  35     adg_assert_isapprox(-M_PI + 1, cpml_angle(-3 * M_PI + 1));
  36 }
  37
  38 static void
  39 _cpml_behavior_angle_distance(void)
  40 {
  41     adg_assert_isapprox(0, cpml_angle_distance(0, 0));
  42     adg_assert_isapprox(0, cpml_angle_distance(M_PI, M_PI));
  43     adg_assert_isapprox(0, cpml_angle_distance(M_PI, 3 * M_PI));
  44     adg_assert_isapprox(0, cpml_angle_distance(M_PI, -M_PI));
  45     adg_assert_isapprox(0, cpml_angle_distance(2 * M_PI, 0));
  46     adg_assert_isapprox(0, cpml_angle_distance(-2 * M_PI, 0));
  47     adg_assert_isapprox(M_PI, cpml_angle_distance(0, M_PI));
  48     adg_assert_isapprox(M_PI, cpml_angle_distance(M_PI, 0));
  49     adg_assert_isapprox(M_PI, cpml_angle_distance(2 * M_PI, M_PI));
  50     adg_assert_isapprox(M_PI, cpml_angle_distance(0, -M_PI));
  51 }
  52
  53
  54 int
  55 main(int argc, char *argv[])
  56 {
  57     adg_test_init(&argc, &argv);
  58
  59     g_test_add_func("/cpml/utils/behavior/angle", _cpml_behavior_angle);
  60     g_test_add_func("/cpml/utils/behavior/angle-distance", _cpml_behavior_angle_distance);
  61
  62     return g_test_run();
  63 }