1 /*
2 tests/test_chrono.cpp -- test conversions to/from std::chrono types
3
4 Copyright (c) 2016 Trent Houliston <trent@houliston.me> and
5 Wenzel Jakob <wenzel.jakob@epfl.ch>
6
7 All rights reserved. Use of this source code is governed by a
8 BSD-style license that can be found in the LICENSE file.
9 */
10
11 #include "pybind11_tests.h"
12 #include <pybind11/chrono.h>
13 #include <chrono>
14
15 struct different_resolutions {
16 using time_point_h = std::chrono::time_point<
17 std::chrono::system_clock, std::chrono::hours>;
18 using time_point_m = std::chrono::time_point<
19 std::chrono::system_clock, std::chrono::minutes>;
20 using time_point_s = std::chrono::time_point<
21 std::chrono::system_clock, std::chrono::seconds>;
22 using time_point_ms = std::chrono::time_point<
23 std::chrono::system_clock, std::chrono::milliseconds>;
24 using time_point_us = std::chrono::time_point<
25 std::chrono::system_clock, std::chrono::microseconds>;
26 time_point_h timestamp_h;
27 time_point_m timestamp_m;
28 time_point_s timestamp_s;
29 time_point_ms timestamp_ms;
30 time_point_us timestamp_us;
31 };
32
TEST_SUBMODULE(chrono,m)33 TEST_SUBMODULE(chrono, m) {
34 using system_time = std::chrono::system_clock::time_point;
35 using steady_time = std::chrono::steady_clock::time_point;
36
37 using timespan = std::chrono::duration<int64_t, std::nano>;
38 using timestamp = std::chrono::time_point<std::chrono::system_clock, timespan>;
39
40 // test_chrono_system_clock
41 // Return the current time off the wall clock
42 m.def("test_chrono1", []() { return std::chrono::system_clock::now(); });
43
44 // test_chrono_system_clock_roundtrip
45 // Round trip the passed in system clock time
46 m.def("test_chrono2", [](system_time t) { return t; });
47
48 // test_chrono_duration_roundtrip
49 // Round trip the passed in duration
50 m.def("test_chrono3", [](std::chrono::system_clock::duration d) { return d; });
51
52 // test_chrono_duration_subtraction_equivalence
53 // Difference between two passed in time_points
54 m.def("test_chrono4", [](system_time a, system_time b) { return a - b; });
55
56 // test_chrono_steady_clock
57 // Return the current time off the steady_clock
58 m.def("test_chrono5", []() { return std::chrono::steady_clock::now(); });
59
60 // test_chrono_steady_clock_roundtrip
61 // Round trip a steady clock timepoint
62 m.def("test_chrono6", [](steady_time t) { return t; });
63
64 // test_floating_point_duration
65 // Roundtrip a duration in microseconds from a float argument
66 m.def("test_chrono7", [](std::chrono::microseconds t) { return t; });
67 // Float durations (issue #719)
68 m.def("test_chrono_float_diff", [](std::chrono::duration<float> a, std::chrono::duration<float> b) {
69 return a - b; });
70
71 m.def("test_nano_timepoint", [](timestamp start, timespan delta) -> timestamp {
72 return start + delta;
73 });
74
75 // Test different resolutions
76 py::class_<different_resolutions>(m, "different_resolutions")
77 .def(py::init<>())
78 .def_readwrite("timestamp_h", &different_resolutions::timestamp_h)
79 .def_readwrite("timestamp_m", &different_resolutions::timestamp_m)
80 .def_readwrite("timestamp_s", &different_resolutions::timestamp_s)
81 .def_readwrite("timestamp_ms", &different_resolutions::timestamp_ms)
82 .def_readwrite("timestamp_us", &different_resolutions::timestamp_us)
83 ;
84 }
85