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RIOT/tests/unittests/tests-ubjson/tests-ubjson.c 3.28 KB
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  /*
   * Copyright (C) 2014  René Kijewski  <rene.kijewski@fu-berlin.de>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
   */
  
  #include "tests-ubjson.h"
  
  #include "thread.h"
  #include "sched.h"
  #include "msg.h"
  #include "mutex.h"
  #include "pipe.h"
  #include "irq.h"
  
  static pipe_t communication_pipe;
  static ringbuffer_t pipe_rb;
  static char pipe_buffer[16];
  
  static char receiver_stack[THREAD_STACKSIZE_DEFAULT];
  
  typedef struct {
      void (*run)(void);
      thread_t *main_thread;
      mutex_t mutexes[2];
  } test_ubjson_receiver_data_t;
  
  static void ubjson_set_up(void)
  {
      ringbuffer_init(&pipe_rb, pipe_buffer, sizeof(pipe_buffer));
      pipe_init(&communication_pipe, &pipe_rb, NULL);
  }
  
  ssize_t test_ubjson_write_fun(ubjson_cookie_t *restrict cookie, const void *buf, size_t len)
  {
      (void) cookie;
      ssize_t total = 0;
      while (total < (ssize_t) len) {
          ssize_t subtotal = pipe_write(&communication_pipe, buf, len);
          if (subtotal < 0) {
              return subtotal;
          }
          total += subtotal;
      }
      return total;
  }
  
  ssize_t test_ubjson_read_fun(ubjson_cookie_t *restrict cookie, void *buf, size_t len)
  {
      (void) cookie;
      return pipe_read(&communication_pipe, buf, len);
  }
  
  static void *test_ubjson_receiver_trampoline(void *arg)
  {
      test_ubjson_receiver_data_t *data = arg;
      data->run();
  
      mutex_unlock(&data->mutexes[0]);
      mutex_lock(&data->mutexes[1]);
  
      irq_disable();
      sched_set_status(data->main_thread, STATUS_PENDING);
      return NULL;
  }
  
  void test_ubjson_test(void (*sender_fun)(void), void (*receiver_fun)(void))
  {
      test_ubjson_receiver_data_t data = {
          .run = receiver_fun,
          .main_thread = (thread_t *) sched_active_thread,
          .mutexes = { MUTEX_INIT, MUTEX_INIT },
      };
      mutex_lock(&data.mutexes[0]);
      mutex_lock(&data.mutexes[1]);
  
      kernel_pid_t receiver_pid = thread_create(receiver_stack, sizeof(receiver_stack),
                                                THREAD_PRIORITY_MAIN,
                                                THREAD_CREATE_WOUT_YIELD,
                                                test_ubjson_receiver_trampoline, &data, "receiver");
      TEST_ASSERT(pid_is_valid(receiver_pid));
  
      sender_fun();
  
      mutex_lock(&data.mutexes[0]);
      mutex_unlock_and_sleep(&data.mutexes[1]);
  }
  
  static Test *tests_ubjson_tests(void)
  {
      EMB_UNIT_TESTFIXTURES(fixtures) {
          new_TestFixture(test_ubjson_empty_array),
          new_TestFixture(test_ubjson_empty_object),
      };
  
      EMB_UNIT_TESTCALLER(ubjson_tests, ubjson_set_up, NULL, fixtures);
  
      return (Test *) &ubjson_tests;
  }
  
  void tests_ubjson(void)
  {
      TESTS_RUN(tests_ubjson_tests());
  }