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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* DAMON Debugfs Interface Unit Tests
*
* Author: SeongJae Park <sj@kernel.org>
*/
#ifdef CONFIG_DAMON_DBGFS_KUNIT_TEST
#ifndef _DAMON_DBGFS_TEST_H
#define _DAMON_DBGFS_TEST_H
#include <kunit/test.h>
static void damon_dbgfs_test_str_to_ints(struct kunit *test)
{
char *question;
int *answers;
int expected[] = {12, 35, 46};
ssize_t nr_integers = 0, i;
question = "123";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
KUNIT_EXPECT_EQ(test, 123, answers[0]);
kfree(answers);
question = "123abc";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
KUNIT_EXPECT_EQ(test, 123, answers[0]);
kfree(answers);
question = "a123";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
kfree(answers);
question = "12 35";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
for (i = 0; i < nr_integers; i++)
KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
kfree(answers);
question = "12 35 46";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)3, nr_integers);
for (i = 0; i < nr_integers; i++)
KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
kfree(answers);
question = "12 35 abc 46";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
for (i = 0; i < 2; i++)
KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
kfree(answers);
question = "";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
kfree(answers);
question = "\n";
answers = str_to_ints(question, strlen(question), &nr_integers);
KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
kfree(answers);
}
static void damon_dbgfs_test_set_targets(struct kunit *test)
{
struct damon_ctx *ctx = dbgfs_new_ctx();
char buf[64];
if (!damon_is_registered_ops(DAMON_OPS_PADDR)) {
dbgfs_destroy_ctx(ctx);
kunit_skip(test, "PADDR not registered");
}
/* Make DAMON consider target has no pid */
damon_select_ops(ctx, DAMON_OPS_PADDR);
dbgfs_set_targets(ctx, 0, NULL);
sprint_target_ids(ctx, buf, 64);
KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
dbgfs_set_targets(ctx, 1, NULL);
sprint_target_ids(ctx, buf, 64);
KUNIT_EXPECT_STREQ(test, (char *)buf, "42\n");
dbgfs_set_targets(ctx, 0, NULL);
sprint_target_ids(ctx, buf, 64);
KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
dbgfs_destroy_ctx(ctx);
}
static void damon_dbgfs_test_set_init_regions(struct kunit *test)
{
struct damon_ctx *ctx = damon_new_ctx();
/* Each line represents one region in ``<target idx> <start> <end>`` */
char * const valid_inputs[] = {"1 10 20\n 1 20 30\n1 35 45",
"1 10 20\n",
"1 10 20\n0 39 59\n0 70 134\n 1 20 25\n",
""};
/* Reading the file again will show sorted, clean output */
char * const valid_expects[] = {"1 10 20\n1 20 30\n1 35 45\n",
"1 10 20\n",
"0 39 59\n0 70 134\n1 10 20\n1 20 25\n",
""};
char * const invalid_inputs[] = {"3 10 20\n", /* target not exists */
"1 10 20\n 1 14 26\n", /* regions overlap */
"0 10 20\n1 30 40\n 0 5 8"}; /* not sorted by address */
char *input, *expect;
int i, rc;
char buf[256];
if (!damon_is_registered_ops(DAMON_OPS_PADDR)) {
damon_destroy_ctx(ctx);
kunit_skip(test, "PADDR not registered");
}
damon_select_ops(ctx, DAMON_OPS_PADDR);
dbgfs_set_targets(ctx, 3, NULL);
/* Put valid inputs and check the results */
for (i = 0; i < ARRAY_SIZE(valid_inputs); i++) {
input = valid_inputs[i];
expect = valid_expects[i];
rc = set_init_regions(ctx, input, strnlen(input, 256));
KUNIT_EXPECT_EQ(test, rc, 0);
memset(buf, 0, 256);
sprint_init_regions(ctx, buf, 256);
KUNIT_EXPECT_STREQ(test, (char *)buf, expect);
}
/* Put invalid inputs and check the return error code */
for (i = 0; i < ARRAY_SIZE(invalid_inputs); i++) {
input = invalid_inputs[i];
pr_info("input: %s\n", input);
rc = set_init_regions(ctx, input, strnlen(input, 256));
KUNIT_EXPECT_EQ(test, rc, -EINVAL);
memset(buf, 0, 256);
sprint_init_regions(ctx, buf, 256);
KUNIT_EXPECT_STREQ(test, (char *)buf, "");
}
dbgfs_set_targets(ctx, 0, NULL);
damon_destroy_ctx(ctx);
}
static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damon_dbgfs_test_str_to_ints),
KUNIT_CASE(damon_dbgfs_test_set_targets),
KUNIT_CASE(damon_dbgfs_test_set_init_regions),
{},
};
static struct kunit_suite damon_test_suite = {
.name = "damon-dbgfs",
.test_cases = damon_test_cases,
};
kunit_test_suite(damon_test_suite);
#endif /* _DAMON_TEST_H */
#endif /* CONFIG_DAMON_KUNIT_TEST */
|
