2 * collectd - src/daemon/utils_time_test.c
3 * Copyright (C) 2015 Florian octo Forster
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6 * copy of this software and associated documentation files (the "Software"),
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10 * Software is furnished to do so, subject to the following conditions:
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24 * Florian octo Forster <octo at collectd.org>
27 #define DBL_PRECISION 1e-3
32 #include "utils_time.h"
34 DEF_TEST(conversion) {
43 /* cdtime double time_t milliseconds
45 {0, 0.0, 0, 0, {0, 0}, {0, 0}},
46 {10737418240ULL, 10.0, 10, 10000, {10, 0}, {10, 0}},
47 {1542908534771941376ULL,
53 {1542908535540740522ULL,
58 {1436945549, 716000000}},
59 // 1426076671.123 * 2^30 = 1531238166015458148.352
60 {1531238166015458148ULL,
65 {1426076671, 123000000}},
66 // 1426076681.234 * 2^30 = 1531238176872061730.816
67 {1531238176872061731ULL,
72 {1426076681, 234000000}},
73 // 1426083986.314 * 2^30 = 1531246020641985396.736
74 {1531246020641985397ULL,
79 {1426083986, 314000000}},
80 // 1426083986.494142531 * 2^30 = 1531246020835411966.5
81 {1531246020835411967ULL,
86 {1426083986, 494142531}},
87 // 1426083986.987410814 * 2^30 = 1531246021365054752.4
88 {1531246021365054752ULL,
93 {1426083986, 987410814}},
95 /* These cases test the cdtime_t -> ns conversion rounds correctly. */
96 // 1546167635576736987 / 2^30 = 1439980823.1524536265...
97 {1546167635576736987ULL,
101 {1439980823, 152454},
102 {1439980823, 152453627}},
103 // 1546167831554815222 / 2^30 = 1439981005.6712620165...
104 {1546167831554815222ULL,
108 {1439981005, 671262},
109 {1439981005, 671262017}},
110 // 1546167986577716567 / 2^30 = 1439981150.0475896215...
111 {1546167986577716567ULL,
116 {1439981150, 47589622}},
119 for (size_t i = 0; i < (sizeof(cases) / sizeof(cases[0])); i++) {
121 EXPECT_EQ_UINT64(cases[i].tt, CDTIME_T_TO_TIME_T(cases[i].t));
124 EXPECT_EQ_UINT64(cases[i].ms, CDTIME_T_TO_MS(cases[i].t));
127 struct timeval tv = CDTIME_T_TO_TIMEVAL(cases[i].t);
128 EXPECT_EQ_UINT64(cases[i].tv.tv_sec, tv.tv_sec);
129 EXPECT_EQ_UINT64(cases[i].tv.tv_usec, tv.tv_usec);
132 struct timespec ts = CDTIME_T_TO_TIMESPEC(cases[i].t);
133 EXPECT_EQ_UINT64(cases[i].ts.tv_sec, ts.tv_sec);
134 EXPECT_EQ_UINT64(cases[i].ts.tv_nsec, ts.tv_nsec);
137 EXPECT_EQ_DOUBLE(cases[i].d, CDTIME_T_TO_DOUBLE(cases[i].t));
143 /* These cases test the ns -> cdtime_t conversion rounds correctly. */
144 DEF_TEST(ns_to_cdtime) {
149 // 1439981652801860766 * 2^30 / 10^9 = 1546168526406004689.4
150 {1439981652801860766ULL, 1546168526406004689ULL},
151 // 1439981836985281914 * 2^30 / 10^9 = 1546168724171447263.4
152 {1439981836985281914ULL, 1546168724171447263ULL},
153 // 1439981880053705608 * 2^30 / 10^9 = 1546168770415815077.4
154 {1439981880053705608ULL, 1546168770415815077ULL},
157 for (size_t i = 0; i < (sizeof(cases) / sizeof(cases[0])); i++) {
158 EXPECT_EQ_UINT64(cases[i].want, NS_TO_CDTIME_T(cases[i].ns));
165 RUN_TEST(conversion);
166 RUN_TEST(ns_to_cdtime);