--- /dev/null
+/**
+ * collectd - src/tests/test_common.c
+ * Copyright (C) 2013 Florian octo Forster
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Florian octo Forster <octo at collectd.org>
+ */
+
+#include "testing.h"
+#include "utils/common/common.h"
+
+#if HAVE_KSTAT_H
+#include <kstat.h>
+#endif
+
+#if HAVE_LIBKSTAT
+kstat_ctl_t *kc;
+#endif /* HAVE_LIBKSTAT */
+
+DEF_TEST(sstrncpy) {
+ char buffer[16] = "";
+ char *ptr = &buffer[4];
+ char *ret;
+
+ buffer[0] = buffer[1] = buffer[2] = buffer[3] = 0xff;
+ buffer[12] = buffer[13] = buffer[14] = buffer[15] = 0xff;
+
+ ret = sstrncpy(ptr, "foobar", 8);
+ OK(ret == ptr);
+ EXPECT_EQ_STR("foobar", ptr);
+ OK(buffer[3] == buffer[12]);
+
+ ret = sstrncpy(ptr, "abc", 8);
+ OK(ret == ptr);
+ EXPECT_EQ_STR("abc", ptr);
+ OK(buffer[3] == buffer[12]);
+
+ ret = sstrncpy(ptr, "collectd", 8);
+ OK(ret == ptr);
+ OK(ptr[7] == 0);
+ EXPECT_EQ_STR("collect", ptr);
+ OK(buffer[3] == buffer[12]);
+
+ return 0;
+}
+
+DEF_TEST(sstrdup) {
+ char *ptr;
+
+ ptr = sstrdup("collectd");
+ OK(ptr != NULL);
+ EXPECT_EQ_STR("collectd", ptr);
+
+ sfree(ptr);
+
+ ptr = sstrdup(NULL);
+ OK(ptr == NULL);
+
+ return 0;
+}
+
+DEF_TEST(strsplit) {
+ char buffer[32];
+ char *fields[8];
+ int status;
+
+ strncpy(buffer, "foo bar", sizeof(buffer));
+ status = strsplit(buffer, fields, 8);
+ OK(status == 2);
+ EXPECT_EQ_STR("foo", fields[0]);
+ EXPECT_EQ_STR("bar", fields[1]);
+
+ strncpy(buffer, "foo \t bar", sizeof(buffer));
+ status = strsplit(buffer, fields, 8);
+ OK(status == 2);
+ EXPECT_EQ_STR("foo", fields[0]);
+ EXPECT_EQ_STR("bar", fields[1]);
+
+ strncpy(buffer, "one two\tthree\rfour\nfive", sizeof(buffer));
+ status = strsplit(buffer, fields, 8);
+ OK(status == 5);
+ EXPECT_EQ_STR("one", fields[0]);
+ EXPECT_EQ_STR("two", fields[1]);
+ EXPECT_EQ_STR("three", fields[2]);
+ EXPECT_EQ_STR("four", fields[3]);
+ EXPECT_EQ_STR("five", fields[4]);
+
+ strncpy(buffer, "\twith trailing\n", sizeof(buffer));
+ status = strsplit(buffer, fields, 8);
+ OK(status == 2);
+ EXPECT_EQ_STR("with", fields[0]);
+ EXPECT_EQ_STR("trailing", fields[1]);
+
+ strncpy(buffer, "1 2 3 4 5 6 7 8 9 10 11 12 13", sizeof(buffer));
+ status = strsplit(buffer, fields, 8);
+ OK(status == 8);
+ EXPECT_EQ_STR("7", fields[6]);
+ EXPECT_EQ_STR("8", fields[7]);
+
+ strncpy(buffer, "single", sizeof(buffer));
+ status = strsplit(buffer, fields, 8);
+ OK(status == 1);
+ EXPECT_EQ_STR("single", fields[0]);
+
+ strncpy(buffer, "", sizeof(buffer));
+ status = strsplit(buffer, fields, 8);
+ OK(status == 0);
+
+ return 0;
+}
+
+DEF_TEST(strjoin) {
+ struct {
+ char **fields;
+ size_t fields_num;
+ char *separator;
+
+ int want_return;
+ char *want_buffer;
+ } cases[] = {
+ /* Normal case. */
+ {(char *[]){"foo", "bar"}, 2, "!", 7, "foo!bar"},
+ /* One field only. */
+ {(char *[]){"foo"}, 1, "!", 3, "foo"},
+ /* No fields at all. */
+ {NULL, 0, "!", 0, ""},
+ /* Longer separator. */
+ {(char *[]){"foo", "bar"}, 2, "rcht", 10, "foorchtbar"},
+ /* Empty separator. */
+ {(char *[]){"foo", "bar"}, 2, "", 6, "foobar"},
+ /* NULL separator. */
+ {(char *[]){"foo", "bar"}, 2, NULL, 6, "foobar"},
+ /* buffer not large enough -> string is truncated. */
+ {(char *[]){"aaaaaa", "bbbbbb", "c!"}, 3, "-", 16, "aaaaaa-bbbbbb-c"},
+ /* buffer not large enough -> last field fills buffer completely. */
+ {(char *[]){"aaaaaaa", "bbbbbbb", "!"}, 3, "-", 17, "aaaaaaa-bbbbbbb"},
+ /* buffer not large enough -> string does *not* end in separator. */
+ {(char *[]){"aaaa", "bbbb", "cccc", "!"}, 4, "-", 16, "aaaa-bbbb-cccc"},
+ /* buffer not large enough -> string does not end with partial
+ separator. */
+ {(char *[]){"aaaaaa", "bbbbbb", "!"}, 3, "+-", 17, "aaaaaa+-bbbbbb"},
+ };
+
+ for (size_t i = 0; i < STATIC_ARRAY_SIZE(cases); i++) {
+ char buffer[16];
+ int status;
+
+ memset(buffer, 0xFF, sizeof(buffer));
+ status = strjoin(buffer, sizeof(buffer), cases[i].fields,
+ cases[i].fields_num, cases[i].separator);
+ EXPECT_EQ_INT(cases[i].want_return, status);
+ EXPECT_EQ_STR(cases[i].want_buffer, buffer);
+
+ /* use (NULL, 0) to determine required buffer size. */
+ EXPECT_EQ_INT(cases[i].want_return,
+ strjoin(NULL, 0, cases[i].fields, cases[i].fields_num,
+ cases[i].separator));
+ }
+
+ return 0;
+}
+
+DEF_TEST(escape_slashes) {
+ struct {
+ char *str;
+ char *want;
+ } cases[] = {
+ {"foo/bar/baz", "foo_bar_baz"},
+ {"/like/a/path", "like_a_path"},
+ {"trailing/slash/", "trailing_slash_"},
+ {"foo//bar", "foo__bar"},
+ };
+
+ for (size_t i = 0; i < STATIC_ARRAY_SIZE(cases); i++) {
+ char buffer[32];
+
+ strncpy(buffer, cases[i].str, sizeof(buffer));
+ OK(escape_slashes(buffer, sizeof(buffer)) == 0);
+ EXPECT_EQ_STR(cases[i].want, buffer);
+ }
+
+ return 0;
+}
+
+DEF_TEST(escape_string) {
+ struct {
+ char *str;
+ char *want;
+ } cases[] = {
+ {"foobar", "foobar"},
+ {"f00bar", "f00bar"},
+ {"foo bar", "\"foo bar\""},
+ {"foo \"bar\"", "\"foo \\\"bar\\\"\""},
+ {"012345678901234", "012345678901234"},
+ {"012345 78901234", "\"012345 789012\""},
+ {"012345 78901\"34", "\"012345 78901\""},
+ };
+
+ for (size_t i = 0; i < STATIC_ARRAY_SIZE(cases); i++) {
+ char buffer[16];
+
+ strncpy(buffer, cases[i].str, sizeof(buffer));
+ OK(escape_string(buffer, sizeof(buffer)) == 0);
+ EXPECT_EQ_STR(cases[i].want, buffer);
+ }
+
+ return 0;
+}
+
+DEF_TEST(strunescape) {
+ char buffer[16];
+ int status;
+
+ strncpy(buffer, "foo\\tbar", sizeof(buffer));
+ status = strunescape(buffer, sizeof(buffer));
+ OK(status == 0);
+ EXPECT_EQ_STR("foo\tbar", buffer);
+
+ strncpy(buffer, "\\tfoo\\r\\n", sizeof(buffer));
+ status = strunescape(buffer, sizeof(buffer));
+ OK(status == 0);
+ EXPECT_EQ_STR("\tfoo\r\n", buffer);
+
+ strncpy(buffer, "With \\\"quotes\\\"", sizeof(buffer));
+ status = strunescape(buffer, sizeof(buffer));
+ OK(status == 0);
+ EXPECT_EQ_STR("With \"quotes\"", buffer);
+
+ /* Backslash before null byte */
+ strncpy(buffer, "\\tbackslash end\\", sizeof(buffer));
+ status = strunescape(buffer, sizeof(buffer));
+ OK(status != 0);
+ EXPECT_EQ_STR("\tbackslash end", buffer);
+ return 0;
+
+ /* Backslash at buffer end */
+ strncpy(buffer, "\\t3\\56", sizeof(buffer));
+ status = strunescape(buffer, 4);
+ OK(status != 0);
+ OK(buffer[0] == '\t');
+ OK(buffer[1] == '3');
+ OK(buffer[2] == 0);
+ OK(buffer[3] == 0);
+ OK(buffer[4] == '5');
+ OK(buffer[5] == '6');
+ OK(buffer[6] == '7');
+
+ return 0;
+}
+
+DEF_TEST(parse_values) {
+ struct {
+ char buffer[64];
+ int status;
+ gauge_t value;
+ } cases[] = {
+ {"1435044576:42", 0, 42.0}, {"1435044576:42:23", -1, NAN},
+ {"1435044576:U", 0, NAN}, {"N:12.3", 0, 12.3},
+ {"N:42.0:23", -1, NAN}, {"N:U", 0, NAN},
+ {"T:42.0", -1, NAN},
+ };
+
+ for (size_t i = 0; i < STATIC_ARRAY_SIZE(cases); i++) {
+ data_source_t dsrc = {
+ .name = "value", .type = DS_TYPE_GAUGE, .min = 0.0, .max = NAN,
+ };
+ data_set_t ds = {
+ .type = "example", .ds_num = 1, .ds = &dsrc,
+ };
+
+ value_t v = {
+ .gauge = NAN,
+ };
+ value_list_t vl = {
+ .values = &v,
+ .values_len = 1,
+ .time = 0,
+ .interval = 0,
+ .host = "example.com",
+ .plugin = "common_test",
+ .type = "example",
+ .meta = NULL,
+ };
+
+ int status = parse_values(cases[i].buffer, &vl, &ds);
+ EXPECT_EQ_INT(cases[i].status, status);
+ if (status != 0)
+ continue;
+
+ EXPECT_EQ_DOUBLE(cases[i].value, vl.values[0].gauge);
+ }
+
+ return 0;
+}
+
+DEF_TEST(value_to_rate) {
+ struct {
+ time_t t0;
+ time_t t1;
+ int ds_type;
+ value_t v0;
+ value_t v1;
+ gauge_t want;
+ } cases[] = {
+ {0, 10, DS_TYPE_DERIVE, {.derive = 0}, {.derive = 1000}, NAN},
+ {10, 20, DS_TYPE_DERIVE, {.derive = 1000}, {.derive = 2000}, 100.0},
+ {20, 30, DS_TYPE_DERIVE, {.derive = 2000}, {.derive = 1800}, -20.0},
+ {0, 10, DS_TYPE_COUNTER, {.counter = 0}, {.counter = 1000}, NAN},
+ {10, 20, DS_TYPE_COUNTER, {.counter = 1000}, {.counter = 5000}, 400.0},
+ /* 32bit wrap-around. */
+ {20,
+ 30,
+ DS_TYPE_COUNTER,
+ {.counter = 4294967238ULL},
+ {.counter = 42},
+ 10.0},
+ /* 64bit wrap-around. */
+ {30,
+ 40,
+ DS_TYPE_COUNTER,
+ {.counter = 18446744073709551558ULL},
+ {.counter = 42},
+ 10.0},
+ };
+
+ for (size_t i = 0; i < STATIC_ARRAY_SIZE(cases); i++) {
+ cdtime_t t0 = TIME_T_TO_CDTIME_T(cases[i].t0);
+ value_to_rate_state_t state = {
+ .last_value = cases[i].v0, .last_time = t0,
+ };
+ gauge_t got;
+
+ if (cases[i].t0 == 0) {
+ EXPECT_EQ_INT(EAGAIN,
+ value_to_rate(&got, cases[i].v1, cases[i].ds_type,
+ TIME_T_TO_CDTIME_T(cases[i].t1), &state));
+ continue;
+ }
+
+ EXPECT_EQ_INT(0, value_to_rate(&got, cases[i].v1, cases[i].ds_type,
+ TIME_T_TO_CDTIME_T(cases[i].t1), &state));
+ EXPECT_EQ_DOUBLE(cases[i].want, got);
+ }
+
+ return 0;
+}
+
+int main(void) {
+ RUN_TEST(sstrncpy);
+ RUN_TEST(sstrdup);
+ RUN_TEST(strsplit);
+ RUN_TEST(strjoin);
+ RUN_TEST(escape_slashes);
+ RUN_TEST(escape_string);
+ RUN_TEST(strunescape);
+ RUN_TEST(parse_values);
+ RUN_TEST(value_to_rate);
+
+ END_TEST;
+}
projects / collectd.git / blobdiff