174 lines
3.9 KiB
C++
174 lines
3.9 KiB
C++
#include <mbgl/util/chrono.hpp>
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#include <mbgl/util/timer.hpp>
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#include <mbgl/util/run_loop.hpp>
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#include <mbgl/util/chrono.hpp>
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#include <memory>
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#include "../fixtures/util.hpp"
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using namespace mbgl::util;
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TEST(Timer, Basic) {
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RunLoop loop;
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Timer timer;
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auto callback = [&loop] { loop.stop(); };
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auto interval = mbgl::Milliseconds(300);
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auto expectedTotalTime = interval;
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auto first = mbgl::Clock::now();
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timer.start(interval, mbgl::Duration::zero(), callback);
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loop.run();
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auto totalTime = std::chrono::duration_cast<mbgl::Milliseconds>(mbgl::Clock::now() - first);
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// These are not high precision timers. Especially libuv uses
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// cached time from the beginning of of the main loop iteration
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// and it is very prone to fire earlier, which is, odd.
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EXPECT_GE(totalTime, expectedTotalTime * 0.8);
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EXPECT_LE(totalTime, expectedTotalTime * 1.2);
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}
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TEST(Timer, Repeat) {
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RunLoop loop;
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Timer timer;
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unsigned count = 10;
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auto callback = [&] {
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if (!--count) {
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loop.stop();
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}
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};
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auto interval = mbgl::Milliseconds(50);
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auto expectedTotalTime = interval * count;
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auto first = mbgl::Clock::now();
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timer.start(interval, interval, callback);
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loop.run();
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auto totalTime = std::chrono::duration_cast<mbgl::Milliseconds>(mbgl::Clock::now() - first);
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EXPECT_GE(totalTime, expectedTotalTime * 0.8);
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EXPECT_LE(totalTime, expectedTotalTime * 1.2);
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}
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TEST(Timer, Stop) {
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RunLoop loop;
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Timer timer1;
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Timer timer2;
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auto interval1 = mbgl::Milliseconds(50);
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auto interval2 = mbgl::Milliseconds(250);
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auto expectedTotalTime = interval2;
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int count = 0;
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auto callback1 = [&] {
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++count;
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timer1.stop();
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};
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auto callback2 = [&] {
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++count;
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loop.stop();
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};
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auto first = mbgl::Clock::now();
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timer1.start(interval1, interval1, callback1);
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timer2.start(interval2, mbgl::Duration::zero(), callback2);
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loop.run();
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auto totalTime = std::chrono::duration_cast<mbgl::Milliseconds>(mbgl::Clock::now() - first);
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EXPECT_EQ(count, 2);
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EXPECT_GE(totalTime, expectedTotalTime * 0.8);
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EXPECT_LE(totalTime, expectedTotalTime * 1.2);
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}
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TEST(Timer, DestroyShouldStop) {
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RunLoop loop;
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auto timer1 = std::make_unique<Timer>();
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Timer timer2;
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auto interval1 = mbgl::Milliseconds(50);
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auto interval2 = mbgl::Milliseconds(250);
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auto expectedTotalTime = interval2;
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int count = 0;
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auto callback1 = [&] {
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++count;
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timer1.reset();
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};
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auto callback2 = [&] {
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++count;
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loop.stop();
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};
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auto first = mbgl::Clock::now();
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timer1->start(interval1, interval1, callback1);
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timer2.start(interval2, mbgl::Duration::zero(), callback2);
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loop.run();
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auto totalTime = std::chrono::duration_cast<mbgl::Milliseconds>(mbgl::Clock::now() - first);
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EXPECT_EQ(count, 2);
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EXPECT_GE(totalTime, expectedTotalTime * 0.8);
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EXPECT_LE(totalTime, expectedTotalTime * 1.2);
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}
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TEST(Timer, StartOverrides) {
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RunLoop loop;
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Timer timer;
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auto interval1 = mbgl::Milliseconds(50);
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auto interval2 = mbgl::Milliseconds(250);
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auto expectedTotalTime = interval1 + interval2;
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int count = 0;
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auto callback2 = [&] {
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++count;
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loop.stop();
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};
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auto callback1 = [&] {
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++count;
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timer.start(interval2, mbgl::Duration::zero(), callback2);
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};
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auto first = mbgl::Clock::now();
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timer.start(interval1, mbgl::Duration::zero(), callback1);
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loop.run();
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auto totalTime = std::chrono::duration_cast<mbgl::Milliseconds>(mbgl::Clock::now() - first);
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EXPECT_EQ(count, 2);
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EXPECT_GE(totalTime, expectedTotalTime * 0.8);
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EXPECT_LE(totalTime, expectedTotalTime * 1.2);
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}
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TEST(Timer, CanStopNonStartedTimer) {
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RunLoop loop;
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Timer timer;
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timer.stop();
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}
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