LXR linux/drivers/comedi/drivers/tests/comedi_example

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 *  comedi/drivers/tests/comedi_example_test.c
   4 *  Example set of unit tests.
   5 *
   6 *  COMEDI - Linux Control and Measurement Device Interface
   7 *  Copyright (C) 2016 Spencer E. Olson <olsonse@umich.edu>
   8 *
   9 *  This program is free software; you can redistribute it and/or modify
  10 *  it under the terms of the GNU General Public License as published by
  11 *  the Free Software Foundation; either version 2 of the License, or
  12 *  (at your option) any later version.
  13 *
  14 *  This program is distributed in the hope that it will be useful,
  15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 *  GNU General Public License for more details.
  18 */
  19
  20#include <linux/module.h>
  21
  22#include "unittest.h"
  23
  24/* *** BEGIN fake board data *** */
  25struct comedi_device {
  26        const char *board_name;
  27        int item;
  28};
  29
  30static struct comedi_device dev = {
  31        .board_name = "fake_device",
  32};
  33
  34/* *** END fake board data *** */
  35
  36/* *** BEGIN fake data init *** */
  37static void init_fake(void)
  38{
  39        dev.item = 10;
  40}
  41
  42/* *** END fake data init *** */
  43
  44static void test0(void)
  45{
  46        init_fake();
  47        unittest(dev.item != 11, "negative result\n");
  48        unittest(dev.item == 10, "positive result\n");
  49}
  50
  51/* **** BEGIN simple module entry/exit functions **** */
  52static int __init unittest_enter(void)
  53{
  54        static const unittest_fptr unit_tests[] = {
  55                test0,
  56                NULL,
  57        };
  58
  59        exec_unittests("example", unit_tests);
  60        return 0;
  61}
  62
  63static void __exit unittest_exit(void) { }
  64
  65module_init(unittest_enter);
  66module_exit(unittest_exit);
  67
  68MODULE_AUTHOR("Spencer Olson <olsonse@umich.edu>");
  69MODULE_DESCRIPTION("Comedi unit-tests example");
  70MODULE_LICENSE("GPL");
  71/* **** END simple module entry/exit functions **** */
  72