summaryrefslogtreecommitdiffstats
path: root/src/vppinfra/test/compress.c
blob: 7fdc3f8ee42d791322f663fe4565b845af83d271 (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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
/* SPDX-License-Identifier: Apache-2.0
 * Copyright(c) 2021 Cisco Systems, Inc.
 */

#include <vppinfra/format.h>
#include <vppinfra/test/test.h>
#include <vppinfra/vector/compress.h>

__test_funct_fn u32
clib_compress_u64_wrapper (u64 *dst, u64 *src, u64 *mask, u32 n_elts)
{
  return clib_compress_u64 (dst, src, mask, n_elts);
}

__test_funct_fn u32
clib_compress_u32_wrapper (u32 *dst, u32 *src, u64 *mask, u32 n_elts)
{
  return clib_compress_u32 (dst, src, mask, n_elts);
}

__test_funct_fn u32
clib_compress_u16_wrapper (u16 *dst, u16 *src, u64 *mask, u32 n_elts)
{
  return clib_compress_u16 (dst, src, mask, n_elts);
}

__test_funct_fn u32
clib_compress_u8_wrapper (u8 *dst, u8 *src, u64 *mask, u32 n_elts)
{
  return clib_compress_u8 (dst, src, mask, n_elts);
}

typedef struct
{
  u64 mask[10];
  u32 n_elts;
} compress_test_t;

static compress_test_t tests[] = {
  { .mask = { 1 }, .n_elts = 1 },
  { .mask = { 2 }, .n_elts = 2 },
  { .mask = { 3 }, .n_elts = 2 },
  { .mask = { 0, 1 }, .n_elts = 66 },
  { .mask = { 0, 2 }, .n_elts = 69 },
  { .mask = { 0, 3 }, .n_elts = 66 },
  { .mask = { ~0ULL, ~0ULL, ~0ULL, ~0ULL }, .n_elts = 62 },
  { .mask = { ~0ULL, ~0ULL, ~0ULL, ~0ULL }, .n_elts = 255 },
  { .mask = { ~0ULL, 1, 1, ~0ULL }, .n_elts = 256 },
};

static clib_error_t *
test_clib_compress_u64 (clib_error_t *err)
{
  u64 src[513];
  u64 dst[513];
  u32 i, j;

  for (i = 0; i < ARRAY_LEN (src); i++)
    src[i] = i;

  for (i = 0; i < ARRAY_LEN (tests); i++)
    {
      compress_test_t *t = tests + i;
      u64 *dp = dst;
      u32 r;

      for (j = 0; j < ARRAY_LEN (dst); j++)
	dst[j] = 0xa5a5a5a5a5a5a5a5;

      r = clib_compress_u64_wrapper (dst, src, t->mask, t->n_elts);

      for (j = 0; j < t->n_elts; j++)
	{
	  if ((t->mask[j >> 6] & (1ULL << (j & 0x3f))) == 0)
	    continue;
	  if (dp[0] != src[j])
	    return clib_error_return (err,
				      "wrong data in testcase %u at "
				      "(dst[%u] = 0x%lx, src[%u] = 0x%lx)",
				      i, dp - dst, dp[0], j, src[j]);
	  dp++;
	}

      if (dst[dp - dst + 1] != 0xa5a5a5a5a5a5a5a5)
	return clib_error_return (err, "buffer overrun in testcase %u", i);

      if (dp - dst != r)
	return clib_error_return (err, "wrong number of elts in testcase %u",
				  i);
    }

  return err;

  return err;
}

static clib_error_t *
test_clib_compress_u32 (clib_error_t *err)
{
  u32 src[513];
  u32 dst[513];
  u32 i, j;

  for (i = 0; i < ARRAY_LEN (src); i++)
    src[i] = i;

  for (i = 0; i < ARRAY_LEN (tests); i++)
    {
      compress_test_t *t = tests + i;
      u32 *dp = dst;
      u32 r;

      for (j = 0; j < ARRAY_LEN (dst); j++)
	dst[j] = 0xa5a5a5a5;

      r = clib_compress_u32_wrapper (dst, src, t->mask, t->n_elts);

      for (j = 0; j < t->n_elts; j++)
	{
	  if ((t->mask[j >> 6] & (1ULL << (j & 0x3f))) == 0)
	    continue;

	  if (dp[0] != src[j])
	    return clib_error_return (err,
				      "wrong data in testcase %u at "
				      "(dst[%u] = 0x%x, src[%u] = 0x%x)",
				      i, dp - dst, dp[0], j, src[j]);
	  dp++;
	}

      if (dst[dp - dst + 1] != 0xa5a5a5a5)
	return clib_error_return (err, "buffer overrun in testcase %u", i);

      if (dp - dst != r)
	return clib_error_return (err, "wrong number of elts in testcase %u",
				  i);
    }

  return err;
}

static clib_error_t *
test_clib_compress_u16 (clib_error_t *err)
{
  u16 src[513];
  u16 dst[513];
  u32 i, j;

  for (i = 0; i < ARRAY_LEN (src); i++)
    src[i] = i;

  for (i = 0; i < ARRAY_LEN (tests); i++)
    {
      compress_test_t *t = tests + i;
      u16 *dp = dst;
      u32 r;

      for (j = 0; j < ARRAY_LEN (dst); j++)
	dst[j] = 0xa5a5;

      r = clib_compress_u16_wrapper (dst, src, t->mask, t->n_elts);

      for (j = 0; j < t->n_elts; j++)
	{
	  if ((t->mask[j >> 6] & (1ULL << (j & 0x3f))) == 0)
	    continue;
	  if (dp[0] != src[j])
	    return clib_error_return (err,
				      "wrong data in testcase %u at "
				      "(dst[%u] = 0x%x, src[%u] = 0x%x)",
				      i, dp - dst, dp[0], j, src[j]);
	  dp++;
	}

      if (dst[dp - dst + 1] != 0xa5a5)
	return clib_error_return (err, "buffer overrun in testcase %u", i);

      if (dp - dst != r)
	return clib_error_return (err, "wrong number of elts in testcase %u",
				  i);
    }

  return err;
}

static clib_error_t *
test_clib_compress_u8 (clib_error_t *err)
{
  u8 src[513];
  u8 dst[513];
  u32 i, j;

  for (i = 0; i < ARRAY_LEN (src); i++)
    src[i] = i;

  for (i = 0; i < ARRAY_LEN (tests); i++)
    {
      compress_test_t *t = tests + i;
      u8 *dp = dst;
      u32 r;

      for (j = 0; j < ARRAY_LEN (dst); j++)
	dst[j] = 0xa5;

      r = clib_compress_u8_wrapper (dst, src, t->mask, t->n_elts);

      for (j = 0; j < t->n_elts; j++)
	{
	  if ((t->mask[j >> 6] & (1ULL << (j & 0x3f))) == 0)
	    continue;
	  if (dp[0] != src[j])
	    return clib_error_return (err,
				      "wrong data in testcase %u at "
				      "(dst[%u] = 0x%x, src[%u] = 0x%x)",
				      i, dp - dst, dp[0], j, src[j]);
	  dp++;
	}

      if (dst[dp - dst + 1] != 0xa5)
	return clib_error_return (err, "buffer overrun in testcase %u", i);

      if (dp - dst != r)
	return clib_error_return (err, "wrong number of elts in testcase %u",
				  i);
    }

  return err;
}

REGISTER_TEST (clib_compress_u64) = {
  .name = "clib_compress_u64",
  .fn = test_clib_compress_u64,
};

REGISTER_TEST (clib_compress_u32) = {
  .name = "clib_compress_u32",
  .fn = test_clib_compress_u32,
};

REGISTER_TEST (clib_compress_u16) = {
  .name = "clib_compress_u16",
  .fn = test_clib_compress_u16,
};

REGISTER_TEST (clib_compress_u8) = {
  .name = "clib_compress_u8",
  .fn = test_clib_compress_u8,
};