test_chrono.cpp revision 14299:2fbea9df56d2 
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
14TEST_SUBMODULE(chrono, m) {
15    using system_time = std::chrono::system_clock::time_point;
16    using steady_time = std::chrono::steady_clock::time_point;
17
18    using timespan = std::chrono::duration<int64_t, std::nano>;
19    using timestamp = std::chrono::time_point<std::chrono::system_clock, timespan>;
20
21    // test_chrono_system_clock
22    // Return the current time off the wall clock
23    m.def("test_chrono1", []() { return std::chrono::system_clock::now(); });
24
25    // test_chrono_system_clock_roundtrip
26    // Round trip the passed in system clock time
27    m.def("test_chrono2", [](system_time t) { return t; });
28
29    // test_chrono_duration_roundtrip
30    // Round trip the passed in duration
31    m.def("test_chrono3", [](std::chrono::system_clock::duration d) { return d; });
32
33    // test_chrono_duration_subtraction_equivalence
34    // Difference between two passed in time_points
35    m.def("test_chrono4", [](system_time a, system_time b) { return a - b; });
36
37    // test_chrono_steady_clock
38    // Return the current time off the steady_clock
39    m.def("test_chrono5", []() { return std::chrono::steady_clock::now(); });
40
41    // test_chrono_steady_clock_roundtrip
42    // Round trip a steady clock timepoint
43    m.def("test_chrono6", [](steady_time t) { return t; });
44
45    // test_floating_point_duration
46    // Roundtrip a duration in microseconds from a float argument
47    m.def("test_chrono7", [](std::chrono::microseconds t) { return t; });
48    // Float durations (issue #719)
49    m.def("test_chrono_float_diff", [](std::chrono::duration<float> a, std::chrono::duration<float> b) {
50        return a - b; });
51
52    m.def("test_nano_timepoint", [](timestamp start, timespan delta) -> timestamp {
53        return start + delta;
54    });
55}
56