iPXE
bitops_test.c
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1 /*
2  * Copyright (C) 2016 Michael Brown <mbrown@fensystems.co.uk>.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA.
18  *
19  * You can also choose to distribute this program under the terms of
20  * the Unmodified Binary Distribution Licence (as given in the file
21  * COPYING.UBDL), provided that you have satisfied its requirements.
22  */
23 
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25 
26 /** @file
27  *
28  * Bit operations self-tests
29  *
30  */
31 
32 /* Forcibly enable assertions */
33 #undef NDEBUG
34 
35 #include <stdint.h>
36 #include <string.h>
37 #include <assert.h>
38 #include <ipxe/bitops.h>
39 #include <ipxe/test.h>
40 
41 /**
42  * Perform bit operations self-tests
43  *
44  */
45 static void bitops_test_exec ( void ) {
46  uint8_t bits[32];
47 
48  /* Initialise bits */
49  memset ( bits, 0, sizeof ( bits ) );
50 
51  /* Test set_bit() */
52  set_bit ( 0, bits );
53  ok ( bits[0] == 0x01 );
54  set_bit ( 17, bits );
55  ok ( bits[2] == 0x02 );
56  set_bit ( 22, bits );
57  ok ( bits[2] == 0x42 );
58  set_bit ( 22, bits );
59  ok ( bits[2] == 0x42 );
60 
61  /* Test clear_bit() */
62  clear_bit ( 0, bits );
63  ok ( bits[0] == 0x00 );
64  bits[5] = 0xff;
65  clear_bit ( 42, bits );
66  ok ( bits[5] == 0xfb );
67  clear_bit ( 42, bits );
68  ok ( bits[5] == 0xfb );
69  clear_bit ( 44, bits );
70  ok ( bits[5] == 0xeb );
71 
72  /* Test test_and_set_bit() */
73  ok ( test_and_set_bit ( 0, bits ) == 0 );
74  ok ( bits[0] == 0x01 );
75  ok ( test_and_set_bit ( 0, bits ) != 0 );
76  ok ( bits[0] == 0x01 );
77  ok ( test_and_set_bit ( 69, bits ) == 0 );
78  ok ( bits[8] == 0x20 );
79  ok ( test_and_set_bit ( 69, bits ) != 0 );
80  ok ( bits[8] == 0x20 );
81  ok ( test_and_set_bit ( 69, bits ) != 0 );
82  ok ( bits[8] == 0x20 );
83 
84  /* Test test_and_clear_bit() */
85  ok ( test_and_clear_bit ( 0, bits ) != 0 );
86  ok ( bits[0] == 0x00 );
87  ok ( test_and_clear_bit ( 0, bits ) == 0 );
88  ok ( bits[0] == 0x00 );
89  bits[31] = 0xeb;
90  ok ( test_and_clear_bit ( 255, bits ) != 0 );
91  ok ( bits[31] == 0x6b );
92  ok ( test_and_clear_bit ( 255, bits ) == 0 );
93  ok ( bits[31] == 0x6b );
94  ok ( test_and_clear_bit ( 255, bits ) == 0 );
95  ok ( bits[31] == 0x6b );
96 }
97 
98 /** Bit operations self-test */
99 struct self_test bitops_test __self_test = {
100  .name = "bitops",
101  .exec = bitops_test_exec,
102 };
int test_and_set_bit(unsigned int bit, volatile void *bits)
static void bitops_test_exec(void)
Perform bit operations self-tests.
Definition: bitops_test.c:45
Self-test infrastructure.
const char * name
Test set name.
Definition: test.h:17
Bit operations.
A self-test set.
Definition: test.h:15
Assertions.
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
unsigned char uint8_t
Definition: stdint.h:10
void set_bit(unsigned int bit, volatile void *bits)
struct self_test bitops_test __self_test
Bit operations self-test.
Definition: bitops_test.c:99
static volatile void * bits
Definition: bitops.h:27
int test_and_clear_bit(unsigned int bit, volatile void *bits)
#define ok(success)
Definition: test.h:46
String functions.
void clear_bit(unsigned int bit, volatile void *bits)
void * memset(void *dest, int character, size_t len) __nonnull