summaryrefslogtreecommitdiff
path: root/test/bloblist.c
blob: 89bdb012e351e1bf23ecc91c33a61a29c8751ef8 (plain)
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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 2018, Google Inc. All rights reserved.
 */

#include <common.h>
#include <bloblist.h>
#include <log.h>
#include <mapmem.h>
#include <test/suites.h>
#include <test/test.h>
#include <test/ut.h>

DECLARE_GLOBAL_DATA_PTR;

/* Declare a new compression test */
#define BLOBLIST_TEST(_name, _flags) \
		UNIT_TEST(_name, _flags, bloblist_test)

enum {
	TEST_TAG		= 1,
	TEST_TAG2		= 2,
	TEST_TAG_MISSING	= 3,

	TEST_SIZE		= 10,
	TEST_SIZE2		= 20,

	TEST_ADDR		= CONFIG_BLOBLIST_ADDR,
	TEST_BLOBLIST_SIZE	= 0x100,
};

static struct bloblist_hdr *clear_bloblist(void)
{
	struct bloblist_hdr *hdr;

	/* Clear out any existing bloblist so we have a clean slate */
	hdr = map_sysmem(CONFIG_BLOBLIST_ADDR, TEST_BLOBLIST_SIZE);
	memset(hdr, '\0', TEST_BLOBLIST_SIZE);

	return hdr;
}

static int bloblist_test_init(struct unit_test_state *uts)
{
	struct bloblist_hdr *hdr;

	hdr = clear_bloblist();
	ut_asserteq(-ENOENT, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
	hdr->version++;
	ut_asserteq(-EPROTONOSUPPORT, bloblist_check(TEST_ADDR,
						     TEST_BLOBLIST_SIZE));

	ut_asserteq(-ENOSPC, bloblist_new(TEST_ADDR, 0x10, 0));
	ut_asserteq(-EFAULT, bloblist_new(1, TEST_BLOBLIST_SIZE, 0));
	ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));

	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	ut_assertok(bloblist_finish());
	ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	hdr->flags++;
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));

	return 1;
}
BLOBLIST_TEST(bloblist_test_init, 0);

static int bloblist_test_blob(struct unit_test_state *uts)
{
	struct bloblist_hdr *hdr;
	struct bloblist_rec *rec, *rec2;
	char *data;

	/* At the start there should be no records */
	hdr = clear_bloblist();
	ut_assertnull(bloblist_find(TEST_TAG, TEST_BLOBLIST_SIZE));
	ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));

	/* Add a record and check that we can find it */
	data = bloblist_add(TEST_TAG, TEST_SIZE);
	rec = (void *)(hdr + 1);
	ut_asserteq_ptr(rec + 1, data);
	data = bloblist_find(TEST_TAG, TEST_SIZE);
	ut_asserteq_ptr(rec + 1, data);

	/* Check the 'ensure' method */
	ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
	ut_assertnull(bloblist_ensure(TEST_TAG, TEST_SIZE2));
	rec2 = (struct bloblist_rec *)(data + ALIGN(TEST_SIZE, BLOBLIST_ALIGN));

	/* Check for a non-existent record */
	ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
	ut_asserteq_ptr(rec2 + 1, bloblist_ensure(TEST_TAG2, TEST_SIZE2));
	ut_assertnull(bloblist_find(TEST_TAG_MISSING, 0));

	return 0;
}
BLOBLIST_TEST(bloblist_test_blob, 0);

static int bloblist_test_bad_blob(struct unit_test_state *uts)
{
	struct bloblist_hdr *hdr;
	void *data;

	hdr = clear_bloblist();
	ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
	data = hdr + 1;
	data += sizeof(struct bloblist_rec);
	ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));
	ut_asserteq_ptr(data, bloblist_ensure(TEST_TAG, TEST_SIZE));

	return 0;
}
BLOBLIST_TEST(bloblist_test_bad_blob, 0);

static int bloblist_test_checksum(struct unit_test_state *uts)
{
	struct bloblist_hdr *hdr;
	char *data, *data2;

	hdr = clear_bloblist();
	ut_assertok(bloblist_new(TEST_ADDR, TEST_BLOBLIST_SIZE, 0));
	ut_assertok(bloblist_finish());
	ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));

	/*
	 * Now change things amd make sure that the checksum notices. We cannot
	 * change the size or alloced fields, since that will crash the code.
	 * It has to rely on these being correct.
	 */
	hdr->flags--;
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	hdr->flags++;

	hdr->size--;
	ut_asserteq(-EFBIG, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	hdr->size++;

	hdr->spare++;
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	hdr->spare--;

	hdr->chksum++;
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	hdr->chksum--;

	/* Make sure the checksum changes when we add blobs */
	data = bloblist_add(TEST_TAG, TEST_SIZE);
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));

	data2 = bloblist_add(TEST_TAG2, TEST_SIZE2);
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	ut_assertok(bloblist_finish());

	/* It should also change if we change the data */
	ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	*data += 1;
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	*data -= 1;

	ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	*data2 += 1;
	ut_asserteq(-EIO, bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	*data2 -= 1;

	/*
	 * Changing data outside the range of valid data should not affect
	 * the checksum.
	 */
	ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));
	data[TEST_SIZE]++;
	data2[TEST_SIZE2]++;
	ut_assertok(bloblist_check(TEST_ADDR, TEST_BLOBLIST_SIZE));

	return 0;
}

BLOBLIST_TEST(bloblist_test_checksum, 0);

int do_ut_bloblist(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
	struct unit_test *tests = ll_entry_start(struct unit_test,
						 bloblist_test);
	const int n_ents = ll_entry_count(struct unit_test, bloblist_test);

	return cmd_ut_category("bloblist", tests, n_ents, argc, argv);
}