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comparison tests/elapsedtimer/main.cpp @ 0:1158cffe5a5e

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Initial import
author David Demelier <markand@malikania.fr>
date Mon, 08 Feb 2016 16:43:14 +0100
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children f8160d515a76
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-1:000000000000 0:1158cffe5a5e
1 /*
2 * main.cpp -- test ElapsedTimer
3 *
4 * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <thread>
20
21 #include <gtest/gtest.h>
22
23 #include <elapsed-timer.h>
24
25 using namespace irccd;
26 using namespace std::chrono_literals;
27
28 /*
29 * For all tests, we tolerate 30 ms because some systems have bigger lags.
30 */
31 static constexpr int margin = 30;
32
33 class TestElapsedTimer : public testing::Test {
34 protected:
35 ElapsedTimer m_timer;
36
37 inline void assertRange(int value, int expected) const noexcept
38 {
39 if (value < (expected - margin) || value > (expected + margin))
40 FAIL() << value << " is bigger than [" << (expected - margin) << ", " << (expected + margin) << "]";
41 }
42 };
43
44 TEST_F(TestElapsedTimer, standard)
45 {
46 std::this_thread::sleep_for(300ms);
47
48 assertRange(m_timer.elapsed(), 300);
49 }
50
51 TEST_F(TestElapsedTimer, reset)
52 {
53 std::this_thread::sleep_for(300ms);
54
55 m_timer.reset();
56
57 assertRange(m_timer.elapsed(), 0);
58 }
59
60 TEST_F(TestElapsedTimer, pause)
61 {
62 /*
63 * Simulate a pause in the game like this:
64 *
65 * start pause restart elapsed
66 * | 10ms |.5ms.| 6ms |
67 *
68 * Since the game was paused, the 5ms must not be totalized.
69 */
70 std::this_thread::sleep_for(10ms);
71
72 m_timer.pause();
73
74 std::this_thread::sleep_for(5ms);
75
76 m_timer.restart();
77
78 std::this_thread::sleep_for(6ms);
79
80 assertRange(m_timer.elapsed(), 16);
81 }
82
83 TEST_F(TestElapsedTimer, doublecheck)
84 {
85 std::this_thread::sleep_for(50ms);
86
87 (void)m_timer.elapsed();
88
89 std::this_thread::sleep_for(50ms);
90
91 assertRange(m_timer.elapsed(), 100);
92 }
93
94 int main(int argc, char **argv)
95 {
96 testing::InitGoogleTest(&argc, argv);
97
98 return RUN_ALL_TESTS();
99 }
100