1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Test cases for API provided by cmdline.c
*/
#include <kunit/test.h>
#include <linux/kernel.h>
#include <linux/random.h>
#include <linux/string.h>
static const char *cmdline_test_strings[] = {
"\"\"", "" , "=" , "\"-", "," , "-," , ",-" , "-" ,
"+," , "--", ",,", "''" , "\"\",", "\",\"", "-\"\"", "\"",
};
static const int cmdline_test_values[] = {
1, 1, 1, 1, 2, 3, 2, 3,
1, 3, 2, 1, 1, 1, 3, 1,
};
static void cmdline_do_one_test(struct kunit *test, const char *in, int rc, int offset)
{
const char *fmt = "Pattern: %s";
const char *out = in;
int dummy;
int ret;
ret = get_option((char **)&out, &dummy);
KUNIT_EXPECT_EQ_MSG(test, ret, rc, fmt, in);
KUNIT_EXPECT_PTR_EQ_MSG(test, out, in + offset, fmt, in);
}
static void cmdline_test_noint(struct kunit *test)
{
unsigned int i = 0;
do {
const char *str = cmdline_test_strings[i];
int rc = 0;
int offset;
/* Only first and leading '-' will advance the pointer */
offset = !!(*str == '-');
cmdline_do_one_test(test, str, rc, offset);
} while (++i < ARRAY_SIZE(cmdline_test_strings));
}
static void cmdline_test_lead_int(struct kunit *test)
{
unsigned int i = 0;
char in[32];
do {
const char *str = cmdline_test_strings[i];
int rc = cmdline_test_values[i];
int offset;
sprintf(in, "%u%s", get_random_int() % 256, str);
/* Only first '-' after the number will advance the pointer */
offset = strlen(in) - strlen(str) + !!(rc == 2);
cmdline_do_one_test(test, in, rc, offset);
} while (++i < ARRAY_SIZE(cmdline_test_strings));
}
static void cmdline_test_tail_int(struct kunit *test)
{
unsigned int i = 0;
char in[32];
do {
const char *str = cmdline_test_strings[i];
/* When "" or "-" the result will be valid integer */
int rc = strcmp(str, "") ? (strcmp(str, "-") ? 0 : 1) : 1;
int offset;
sprintf(in, "%s%u", str, get_random_int() % 256);
/*
* Only first and leading '-' not followed by integer
* will advance the pointer.
*/
offset = rc ? strlen(in) : !!(*str == '-');
cmdline_do_one_test(test, in, rc, offset);
} while (++i < ARRAY_SIZE(cmdline_test_strings));
}
static struct kunit_case cmdline_test_cases[] = {
KUNIT_CASE(cmdline_test_noint),
KUNIT_CASE(cmdline_test_lead_int),
KUNIT_CASE(cmdline_test_tail_int),
{}
};
static struct kunit_suite cmdline_test_suite = {
.name = "cmdline",
.test_cases = cmdline_test_cases,
};
kunit_test_suite(cmdline_test_suite);
MODULE_LICENSE("GPL");
|
