text: /*
   * Copyright 2011 Bjorn Fahller <bjorn@fahller.se>
   * All rights reserved
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  
  #include <crpcut.hpp>
  extern "C"
  {
  #  include <unistd.h>
  #  include <sys/times.h>
  }
  TEST(long_real_time_short_cpu_time)
  {
    ASSERT_SCOPE_MAX_CPUTIME_MS(3)
    {
      for (int i = 0; i < 50; ++i)
        {
          usleep(1000); // would fail if implemented as busy wait
        }
    }
  }
  
  TEST(short_real_time_long_cpu_time)
  {
    const clock_t clocks_per_tick = sysconf(_SC_CLK_TCK);
    tms t;
    times(&t);
    clock_t deadline = t.tms_utime + t.tms_stime + clocks_per_tick/10;
    ASSERT_SCOPE_MAX_CPUTIME_MS(100)
    {
      for (;;)
        {
          for (volatile int n = 0; n < 100000; ++n)
            ;
          times(&t);
          if (t.tms_utime + t.tms_stime > deadline) break;
        }
    }
  }
  
  int main(int argc, char *argv[])
  {
    return crpcut::run(argc, argv);
  }
  