1 // SPDX-License-Identifier: GPL-2.0+
2 /* vim: set ts=8 sw=8 noet tw=80 nowrap: */
3 /*
4  *  comedi/drivers/tests/example_test.c
5  *  Example set of unit tests.
6  *
7  *  COMEDI - Linux Control and Measurement Device Interface
8  *  Copyright (C) 2016 Spencer E. Olson <olsonse@umich.edu>
9  *
10  *  This program is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License as published by
12  *  the Free Software Foundation; either version 2 of the License, or
13  *  (at your option) any later version.
14  *
15  *  This program is distributed in the hope that it will be useful,
16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *  GNU General Public License for more details.
19  */
20 
21 #include <linux/module.h>
22 
23 #include "unittest.h"
24 
25 /* *** BEGIN fake board data *** */
26 struct comedi_device {
27 	const char *board_name;
28 	int item;
29 };
30 
31 static struct comedi_device dev = {
32 	.board_name = "fake_device",
33 };
34 
35 /* *** END fake board data *** */
36 
37 /* *** BEGIN fake data init *** */
init_fake(void)38 void init_fake(void)
39 {
40 	dev.item = 10;
41 }
42 
43 /* *** END fake data init *** */
44 
test0(void)45 void test0(void)
46 {
47 	init_fake();
48 	unittest(dev.item != 11, "negative result\n");
49 	unittest(dev.item == 10, "positive result\n");
50 }
51 
52 /* **** BEGIN simple module entry/exit functions **** */
unittest_enter(void)53 static int __init unittest_enter(void)
54 {
55 	const unittest_fptr unit_tests[] = {
56 		(unittest_fptr)test0,
57 		NULL,
58 	};
59 
60 	exec_unittests("example", unit_tests);
61 	return 0;
62 }
63 
unittest_exit(void)64 static void __exit unittest_exit(void) { }
65 
66 module_init(unittest_enter);
67 module_exit(unittest_exit);
68 
69 MODULE_AUTHOR("Spencer Olson <olsonse@umich.edu>");
70 MODULE_DESCRIPTION("Comedi unit-tests example");
71 MODULE_LICENSE("GPL");
72 /* **** END simple module entry/exit functions **** */
73