1 /**
2 * collectd - src/tests/test_common.c
3 * Copyright (C) 2013 Florian octo Forster
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Florian octo Forster <octo at collectd.org>
25 */
27 #include "common.h"
28 #include "testing.h"
30 #if HAVE_LIBKSTAT
31 kstat_ctl_t *kc;
32 #endif /* HAVE_LIBKSTAT */
34 DEF_TEST(sstrncpy)
35 {
36 char buffer[16] = "";
37 char *ptr = &buffer[4];
38 char *ret;
40 buffer[0] = buffer[1] = buffer[2] = buffer[3] = 0xff;
41 buffer[12] = buffer[13] = buffer[14] = buffer[15] = 0xff;
43 ret = sstrncpy (ptr, "foobar", 8);
44 OK(ret == ptr);
45 EXPECT_EQ_STR ("foobar", ptr);
46 OK(buffer[3] == buffer[12]);
48 ret = sstrncpy (ptr, "abc", 8);
49 OK(ret == ptr);
50 EXPECT_EQ_STR ("abc", ptr);
51 OK(buffer[3] == buffer[12]);
53 ret = sstrncpy (ptr, "collectd", 8);
54 OK(ret == ptr);
55 OK(ptr[7] == 0);
56 EXPECT_EQ_STR ("collect", ptr);
57 OK(buffer[3] == buffer[12]);
59 return (0);
60 }
62 DEF_TEST(ssnprintf)
63 {
64 char buffer[16] = "";
65 char *ptr = &buffer[4];
66 int status;
68 buffer[0] = buffer[1] = buffer[2] = buffer[3] = 0xff;
69 buffer[12] = buffer[13] = buffer[14] = buffer[15] = 0xff;
71 status = ssnprintf (ptr, 8, "%i", 1337);
72 OK(status == 4);
73 EXPECT_EQ_STR ("1337", ptr);
75 status = ssnprintf (ptr, 8, "%s", "collectd");
76 OK(status == 8);
77 OK(ptr[7] == 0);
78 EXPECT_EQ_STR ("collect", ptr);
79 OK(buffer[3] == buffer[12]);
81 return (0);
82 }
84 DEF_TEST(sstrdup)
85 {
86 char *ptr;
88 ptr = sstrdup ("collectd");
89 OK(ptr != NULL);
90 EXPECT_EQ_STR ("collectd", ptr);
92 sfree(ptr);
94 ptr = sstrdup (NULL);
95 OK(ptr == NULL);
97 return (0);
98 }
100 DEF_TEST(strsplit)
101 {
102 char buffer[32];
103 char *fields[8];
104 int status;
106 strncpy (buffer, "foo bar", sizeof (buffer));
107 status = strsplit (buffer, fields, 8);
108 OK(status == 2);
109 EXPECT_EQ_STR ("foo", fields[0]);
110 EXPECT_EQ_STR ("bar", fields[1]);
112 strncpy (buffer, "foo \t bar", sizeof (buffer));
113 status = strsplit (buffer, fields, 8);
114 OK(status == 2);
115 EXPECT_EQ_STR ("foo", fields[0]);
116 EXPECT_EQ_STR ("bar", fields[1]);
118 strncpy (buffer, "one two\tthree\rfour\nfive", sizeof (buffer));
119 status = strsplit (buffer, fields, 8);
120 OK(status == 5);
121 EXPECT_EQ_STR ("one", fields[0]);
122 EXPECT_EQ_STR ("two", fields[1]);
123 EXPECT_EQ_STR ("three", fields[2]);
124 EXPECT_EQ_STR ("four", fields[3]);
125 EXPECT_EQ_STR ("five", fields[4]);
127 strncpy (buffer, "\twith trailing\n", sizeof (buffer));
128 status = strsplit (buffer, fields, 8);
129 OK(status == 2);
130 EXPECT_EQ_STR ("with", fields[0]);
131 EXPECT_EQ_STR ("trailing", fields[1]);
133 strncpy (buffer, "1 2 3 4 5 6 7 8 9 10 11 12 13", sizeof (buffer));
134 status = strsplit (buffer, fields, 8);
135 OK(status == 8);
136 EXPECT_EQ_STR ("7", fields[6]);
137 EXPECT_EQ_STR ("8", fields[7]);
139 strncpy (buffer, "single", sizeof (buffer));
140 status = strsplit (buffer, fields, 8);
141 OK(status == 1);
142 EXPECT_EQ_STR ("single", fields[0]);
144 strncpy (buffer, "", sizeof (buffer));
145 status = strsplit (buffer, fields, 8);
146 OK(status == 0);
148 return (0);
149 }
151 DEF_TEST(strjoin)
152 {
153 char buffer[16];
154 char *fields[4];
155 int status;
157 fields[0] = "foo";
158 fields[1] = "bar";
159 fields[2] = "baz";
160 fields[3] = "qux";
162 status = strjoin (buffer, sizeof (buffer), fields, 2, "!");
163 OK(status == 7);
164 EXPECT_EQ_STR ("foo!bar", buffer);
166 status = strjoin (buffer, sizeof (buffer), fields, 1, "!");
167 OK(status == 3);
168 EXPECT_EQ_STR ("foo", buffer);
170 status = strjoin (buffer, sizeof (buffer), fields, 0, "!");
171 OK(status < 0);
173 status = strjoin (buffer, sizeof (buffer), fields, 2, "rcht");
174 OK(status == 10);
175 EXPECT_EQ_STR ("foorchtbar", buffer);
177 status = strjoin (buffer, sizeof (buffer), fields, 4, "");
178 OK(status == 12);
179 EXPECT_EQ_STR ("foobarbazqux", buffer);
181 status = strjoin (buffer, sizeof (buffer), fields, 4, "!");
182 OK(status == 15);
183 EXPECT_EQ_STR ("foo!bar!baz!qux", buffer);
185 fields[0] = "0123";
186 fields[1] = "4567";
187 fields[2] = "8901";
188 fields[3] = "2345";
189 status = strjoin (buffer, sizeof (buffer), fields, 4, "-");
190 OK(status < 0);
192 return (0);
193 }
195 DEF_TEST(escape_slashes)
196 {
197 struct {
198 char *str;
199 char *want;
200 } cases[] = {
201 {"foo/bar/baz", "foo_bar_baz"},
202 {"/like/a/path", "like_a_path"},
203 {"trailing/slash/", "trailing_slash_"},
204 {"foo//bar", "foo__bar"},
205 };
207 for (size_t i = 0; i < STATIC_ARRAY_SIZE (cases); i++) {
208 char buffer[32];
210 strncpy (buffer, cases[i].str, sizeof (buffer));
211 OK(escape_slashes (buffer, sizeof (buffer)) == 0);
212 EXPECT_EQ_STR(cases[i].want, buffer);
213 }
215 return 0;
216 }
218 DEF_TEST(escape_string)
219 {
220 struct {
221 char *str;
222 char *want;
223 } cases[] = {
224 {"foobar", "foobar"},
225 {"f00bar", "f00bar"},
226 {"foo bar", "\"foo bar\""},
227 {"foo \"bar\"", "\"foo \\\"bar\\\"\""},
228 {"012345678901234", "012345678901234"},
229 {"012345 78901234", "\"012345 789012\""},
230 {"012345 78901\"34", "\"012345 78901\""},
231 };
233 for (size_t i = 0; i < STATIC_ARRAY_SIZE (cases); i++) {
234 char buffer[16];
236 strncpy (buffer, cases[i].str, sizeof (buffer));
237 OK(escape_string (buffer, sizeof (buffer)) == 0);
238 EXPECT_EQ_STR(cases[i].want, buffer);
239 }
241 return 0;
242 }
244 DEF_TEST(strunescape)
245 {
246 char buffer[16];
247 int status;
249 strncpy (buffer, "foo\\tbar", sizeof (buffer));
250 status = strunescape (buffer, sizeof (buffer));
251 OK(status == 0);
252 EXPECT_EQ_STR ("foo\tbar", buffer);
254 strncpy (buffer, "\\tfoo\\r\\n", sizeof (buffer));
255 status = strunescape (buffer, sizeof (buffer));
256 OK(status == 0);
257 EXPECT_EQ_STR ("\tfoo\r\n", buffer);
259 strncpy (buffer, "With \\\"quotes\\\"", sizeof (buffer));
260 status = strunescape (buffer, sizeof (buffer));
261 OK(status == 0);
262 EXPECT_EQ_STR ("With \"quotes\"", buffer);
264 /* Backslash before null byte */
265 strncpy (buffer, "\\tbackslash end\\", sizeof (buffer));
266 status = strunescape (buffer, sizeof (buffer));
267 OK(status != 0);
268 EXPECT_EQ_STR ("\tbackslash end", buffer);
269 return (0);
271 /* Backslash at buffer end */
272 strncpy (buffer, "\\t3\\56", sizeof (buffer));
273 status = strunescape (buffer, 4);
274 OK(status != 0);
275 OK(buffer[0] == '\t');
276 OK(buffer[1] == '3');
277 OK(buffer[2] == 0);
278 OK(buffer[3] == 0);
279 OK(buffer[4] == '5');
280 OK(buffer[5] == '6');
281 OK(buffer[6] == '7');
283 return (0);
284 }
286 DEF_TEST(parse_values)
287 {
288 struct {
289 char buffer[64];
290 int status;
291 gauge_t value;
292 } cases[] = {
293 {"1435044576:42", 0, 42.0},
294 {"1435044576:42:23", -1, NAN},
295 {"1435044576:U", 0, NAN},
296 {"N:12.3", 0, 12.3},
297 {"N:42.0:23", -1, NAN},
298 {"N:U", 0, NAN},
299 {"T:42.0", -1, NAN},
300 };
302 for (size_t i = 0; i < STATIC_ARRAY_SIZE (cases); i++)
303 {
304 data_source_t dsrc = {
305 .name = "value",
306 .type = DS_TYPE_GAUGE,
307 .min = 0.0,
308 .max = NAN,
309 };
310 data_set_t ds = {
311 .type = "example",
312 .ds_num = 1,
313 .ds = &dsrc,
314 };
316 value_t v = {
317 .gauge = NAN,
318 };
319 value_list_t vl = {
320 .values = &v,
321 .values_len = 1,
322 .time = 0,
323 .interval = 0,
324 .host = "example.com",
325 .plugin = "common_test",
326 .type = "example",
327 .meta = NULL,
328 };
330 int status = parse_values (cases[i].buffer, &vl, &ds);
331 EXPECT_EQ_INT (cases[i].status, status);
332 if (status != 0)
333 continue;
335 EXPECT_EQ_DOUBLE (cases[i].value, vl.values[0].gauge);
336 }
338 return (0);
339 }
341 DEF_TEST(value_to_rate)
342 {
343 struct {
344 time_t t0;
345 time_t t1;
346 int ds_type;
347 value_t v0;
348 value_t v1;
349 gauge_t want;
350 } cases[] = {
351 { 0, 10, DS_TYPE_DERIVE, {.derive = 0}, {.derive = 1000}, NAN},
352 {10, 20, DS_TYPE_DERIVE, {.derive = 1000}, {.derive = 2000}, 100.0},
353 {20, 30, DS_TYPE_DERIVE, {.derive = 2000}, {.derive = 1800}, -20.0},
354 { 0, 10, DS_TYPE_COUNTER, {.counter = 0}, {.counter = 1000}, NAN},
355 {10, 20, DS_TYPE_COUNTER, {.counter = 1000}, {.counter = 5000}, 400.0},
356 /* 32bit wrap-around. */
357 {20, 30, DS_TYPE_COUNTER, {.counter = 4294967238ULL}, {.counter = 42}, 10.0},
358 /* 64bit wrap-around. */
359 {30, 40, DS_TYPE_COUNTER, {.counter = 18446744073709551558ULL}, {.counter = 42}, 10.0},
360 };
362 for (size_t i = 0; i < STATIC_ARRAY_SIZE (cases); i++) {
363 value_to_rate_state_t state = { cases[i].v0, TIME_T_TO_CDTIME_T (cases[i].t0) };
364 gauge_t got;
366 if (cases[i].t0 == 0) {
367 OK(value_to_rate (&got, cases[i].v1, cases[i].ds_type, TIME_T_TO_CDTIME_T(cases[i].t1), &state) == EAGAIN);
368 continue;
369 }
371 OK(value_to_rate (&got, cases[i].v1, cases[i].ds_type, TIME_T_TO_CDTIME_T(cases[i].t1), &state) == 0);
372 EXPECT_EQ_DOUBLE(cases[i].want, got);
373 }
375 return 0;
376 }
378 int main (void)
379 {
380 RUN_TEST(sstrncpy);
381 RUN_TEST(ssnprintf);
382 RUN_TEST(sstrdup);
383 RUN_TEST(strsplit);
384 RUN_TEST(strjoin);
385 RUN_TEST(escape_slashes);
386 RUN_TEST(escape_string);
387 RUN_TEST(strunescape);
388 RUN_TEST(parse_values);
389 RUN_TEST(value_to_rate);
391 END_TEST;
392 }
394 /* vim: set sw=2 sts=2 et : */