test/src/TestOverwritingRingBuffer.cpp

   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 #include "Util/OverwritingRingBuffer.hpp"
  24 #include "TestUtil.hpp"
  25
  26 int main(int argc, char **argv)
  27 {
  28   plan_tests(14);
  29
  30   OverwritingRingBuffer<unsigned,4> buffer;
  31   ok1(buffer.empty());
  32
  33   buffer.push(1);
  34   ok1(!buffer.empty());
  35   ok1(buffer.peek() == 1);
  36   ok1(buffer.shift() == 1);
  37   ok1(buffer.empty());
  38
  39   buffer.push(2);
  40   buffer.push(3);
  41   buffer.push(4);
  42   buffer.push(5);
  43   ok1(!buffer.empty());
  44
  45   auto i = buffer.begin(), end = buffer.end();
  46   ok1(*i == 3);
  47   ++i;
  48   ok1(*i == 4);
  49   ++i;
  50   ok1(*i == 5);
  51   ++i;
  52   ok1(i == end);
  53
  54   ok1(buffer.shift() == 3);
  55   ok1(buffer.shift() == 4);
  56   ok1(buffer.shift() == 5);
  57   ok1(buffer.empty());
  58
  59   return exit_status();
  60 }