1 /**
2 * collectd - src/daemon/utils_time_test.c
3 * Copyright (C) 2015 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 #define DBL_PRECISION 1e-3
29 #include "collectd.h"
31 #include "testing.h"
32 #include "utils_time.h"
34 DEF_TEST(conversion)
35 {
36 struct {
37 cdtime_t t;
38 double d;
39 time_t tt;
40 uint64_t ms;
41 struct timeval tv;
42 struct timespec ts;
43 } cases[] = {
44 /* cdtime double time_t milliseconds timeval timespec */
45 { 0, 0.0 , 0, 0, { 0, 0}, { 0, 0}},
46 { 10737418240ULL, 10.0 , 10, 10000, { 10, 0}, { 10, 0}},
47 {1542908534771941376ULL, 1436945549.0 , 1436945549, 1436945549000ULL, {1436945549, 0}, {1436945549, 0}},
48 {1542908535540740522ULL, 1436945549.716, 1436945550, 1436945549716ULL, {1436945549, 716000}, {1436945549, 716000000}},
49 // 1426076671.123 * 2^30 = 1531238166015458148.352
50 {1531238166015458148ULL, 1426076671.123, 1426076671, 1426076671123ULL, {1426076671, 123000}, {1426076671, 123000000}},
51 // 1426076681.234 * 2^30 = 1531238176872061730.816
52 {1531238176872061731ULL, 1426076681.234, 1426076681, 1426076681234ULL, {1426076681, 234000}, {1426076681, 234000000}},
53 // 1426083986.314 * 2^30 = 1531246020641985396.736
54 {1531246020641985397ULL, 1426083986.314, 1426083986, 1426083986314ULL, {1426083986, 314000}, {1426083986, 314000000}},
55 // 1426083986.494142531 * 2^30 = 1531246020835411966.5
56 {1531246020835411967ULL, 1426083986.494, 1426083986, 1426083986494ULL, {1426083986, 494143}, {1426083986, 494142531}},
57 // 1426083986.987410814 * 2^30 = 1531246021365054752.4
58 {1531246021365054752ULL, 1426083986.987, 1426083987, 1426083986987ULL, {1426083986, 987411}, {1426083986, 987410814}},
60 /* These cases test the cdtime_t -> ns conversion rounds correctly. */
61 // 1546167635576736987 / 2^30 = 1439980823.1524536265...
62 {1546167635576736987ULL, 1439980823.152, 1439980823, 1439980823152ULL, {1439980823, 152454}, {1439980823, 152453627}},
63 // 1546167831554815222 / 2^30 = 1439981005.6712620165...
64 {1546167831554815222ULL, 1439981005.671, 1439981006, 1439981005671ULL, {1439981005, 671262}, {1439981005, 671262017}},
65 // 1546167986577716567 / 2^30 = 1439981150.0475896215...
66 {1546167986577716567ULL, 1439981150.048, 1439981150, 1439981150048ULL, {1439981150, 47590}, {1439981150, 47589622}},
67 };
69 for (size_t i = 0; i < (sizeof (cases) / sizeof (cases[0])); i++) {
70 // cdtime -> s
71 EXPECT_EQ_UINT64 (cases[i].tt, CDTIME_T_TO_TIME_T (cases[i].t));
73 // cdtime -> ms
74 EXPECT_EQ_UINT64(cases[i].ms, CDTIME_T_TO_MS (cases[i].t));
76 // cdtime -> us
77 struct timeval tv = CDTIME_T_TO_TIMEVAL (cases[i].t);
78 EXPECT_EQ_UINT64 (cases[i].tv.tv_sec, tv.tv_sec);
79 EXPECT_EQ_UINT64 (cases[i].tv.tv_usec, tv.tv_usec);
81 // cdtime -> ns
82 struct timespec ts = CDTIME_T_TO_TIMESPEC (cases[i].t);
83 EXPECT_EQ_UINT64 (cases[i].ts.tv_sec, ts.tv_sec);
84 EXPECT_EQ_UINT64 (cases[i].ts.tv_nsec, ts.tv_nsec);
86 // cdtime -> double
87 EXPECT_EQ_DOUBLE (cases[i].d, CDTIME_T_TO_DOUBLE (cases[i].t));
88 }
90 return 0;
91 }
93 /* These cases test the ns -> cdtime_t conversion rounds correctly. */
94 DEF_TEST(ns_to_cdtime)
95 {
96 struct {
97 uint64_t ns;
98 cdtime_t want;
99 } cases[] = {
100 // 1439981652801860766 * 2^30 / 10^9 = 1546168526406004689.4
101 {1439981652801860766ULL, 1546168526406004689ULL},
102 // 1439981836985281914 * 2^30 / 10^9 = 1546168724171447263.4
103 {1439981836985281914ULL, 1546168724171447263ULL},
104 // 1439981880053705608 * 2^30 / 10^9 = 1546168770415815077.4
105 {1439981880053705608ULL, 1546168770415815077ULL},
106 };
108 for (size_t i = 0; i < (sizeof (cases) / sizeof (cases[0])); i++) {
109 EXPECT_EQ_UINT64 (cases[i].want, NS_TO_CDTIME_T (cases[i].ns));
110 }
112 return 0;
113 }
115 int main (void)
116 {
117 RUN_TEST(conversion);
118 RUN_TEST(ns_to_cdtime);
120 END_TEST;
121 }
123 /* vim: set sw=2 sts=2 et : */