1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * comedi/drivers/tests/unittest.h
4 * Simple framework for unittests for comedi drivers.
5 *
6 * COMEDI - Linux Control and Measurement Device Interface
7 * Copyright (C) 2016 Spencer E. Olson <olsonse@umich.edu>
8 * based of parts of drivers/of/unittest.c
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#ifndef _COMEDI_DRIVERS_TESTS_UNITTEST_H
22#define _COMEDI_DRIVERS_TESTS_UNITTEST_H
23
24static struct unittest_results {
25 int passed;
26 int failed;
27} unittest_results;
28
29typedef void (*unittest_fptr)(void);
30
31#define unittest(result, fmt, ...) ({ \
32 bool failed = !(result); \
33 if (failed) { \
34 ++unittest_results.failed; \
35 pr_err("FAIL %s():%i " fmt, __func__, __LINE__, \
36 ##__VA_ARGS__); \
37 } else { \
38 ++unittest_results.passed; \
39 pr_debug("pass %s():%i " fmt, __func__, __LINE__, \
40 ##__VA_ARGS__); \
41 } \
42 failed; \
43})
44
45/**
46 * Execute an array of unit tests.
47 * @name: Name of set of unit tests--will be shown at INFO log level.
48 * @unit_tests: A null-terminated list of unit tests to execute.
49 */
50static inline void exec_unittests(const char *name,
51 const unittest_fptr *unit_tests)
52{
53 pr_info("begin comedi:\"%s\" unittests\n", name);
54
55 for (; (*unit_tests) != NULL; ++unit_tests)
56 (*unit_tests)();
57
58 pr_info("end of comedi:\"%s\" unittests - %i passed, %i failed\n", name,
59 unittest_results.passed, unittest_results.failed);
60}
61
62#endif /* _COMEDI_DRIVERS_TESTS_UNITTEST_H */
63

source code of linux/drivers/comedi/drivers/tests/unittest.h