test/src/TestUtil.hpp

   1 /* Copyright_License {
   2
   3   XCSoar Glide Computer - http://www.xcsoar.org/
   4   Copyright (C) 2000-2013 The XCSoar Project
   5   A detailed list of copyright holders can be found in the file "AUTHORS".
   6
   7   This program is free software; you can redistribute it and/or
   8   modify it under the terms of the GNU General Public License
   9   as published by the Free Software Foundation; either version 2
  10   of the License, or (at your option) any later version.
  11
  12   This program is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with this program; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20 }
  21 */
  22
  23 #ifndef XCSOAR_TEST_UTIL_HPP
  24 #define XCSOAR_TEST_UTIL_HPP
  25
  26 #include "Geo/GeoPoint.hpp"
  27 #include "Math/Angle.hpp"
  28
  29 #ifndef ACCURACY
  30 /**
  31  * Define this macro before including TestUtil.hpp to compare with a
  32  * different accuracy.
  33  */
  34 #define ACCURACY 10000
  35 #endif
  36
  37 extern "C" {
  38 #include "tap.h"
  39 }
  40
  41 static inline bool
  42 is_zero(const fixed value, const int accuracy=ACCURACY)
  43 {
  44   return (long)(fabs(value) * accuracy) == 0;
  45 }
  46
  47 static inline bool
  48 is_one(const fixed value, const int accuracy=ACCURACY)
  49 {
  50   return is_zero(value - fixed(1), accuracy);
  51 }
  52
  53 static inline bool
  54 equals(const fixed a, const fixed b, const int accuracy=ACCURACY)
  55 {
  56   if (is_zero(a, accuracy) || is_zero(b, accuracy))
  57     return is_zero(a, accuracy) && is_zero(b, accuracy);
  58
  59   return is_one(a / b, accuracy);
  60 }
  61
  62 #ifdef FIXED_MATH
  63 static inline bool
  64 equals(const fixed a, double b)
  65 {
  66   return equals(a, fixed(b));
  67 }
  68 #endif
  69
  70 static inline bool
  71 equals(const fixed a, int b)
  72 {
  73   return equals(a, fixed(b));
  74 }
  75
  76 #ifdef FIXED_MATH
  77 static inline bool
  78 between(double x, double a, double b)
  79 {
  80   return x >= a && x <= b;
  81 }
  82 #endif
  83
  84 static inline bool
  85 between(fixed x, fixed a, fixed b)
  86 {
  87   return x >= a && x <= b;
  88 }
  89
  90 #ifdef FIXED_MATH
  91
  92 static inline bool
  93 between(fixed x, double a, double b)
  94 {
  95   return between(x, fixed(a), fixed(b));
  96 }
  97
  98 #endif
  99
 100 static inline bool
 101 equals(const Angle a, int b)
 102 {
 103   return equals(a.Degrees(), fixed(b));
 104 }
 105
 106 static inline bool
 107 equals(const Angle a, double b)
 108 {
 109   return equals(a.Degrees(), fixed(b));
 110 }
 111
 112 static inline bool
 113 equals(const Angle a, const Angle b)
 114 {
 115   return is_zero((a - b).AsDelta().Degrees());
 116 }
 117
 118 static inline bool
 119 equals(const GeoPoint a, double lat, double lon)
 120 {
 121   return equals(a.latitude, lat) && equals(a.longitude, lon);
 122 }
 123
 124 static inline bool
 125 equals(const GeoPoint a, const Angle lat, const Angle lon)
 126 {
 127   return equals(a.latitude, lat) && equals(a.longitude, lon);
 128 }
 129
 130 static inline bool
 131 equals(const GeoPoint a, const GeoPoint b)
 132 {
 133   return equals(a.latitude, b.latitude) && equals(a.longitude, b.longitude);
 134 }
 135
 136 #endif