Merge "composer: vts: check that refresh rate stays the same on inactivity"...

              mComposerClient->getDisplayVsyncPeriod(mInvalidDisplayId, &vsyncPeriodNanos));

}

TEST_P(GraphicsComposerHidlTest, getDisplayVsyncPeriod) {

TEST_P(GraphicsComposerHidlCommandTest, getDisplayVsyncPeriod) {

    for (Display display : mComposerCallback->getDisplays()) {

        for (Config config : mComposerClient->getDisplayConfigs(display)) {

            VsyncPeriodNanos expectedVsyncPeriodNanos = mComposerClient->getDisplayAttribute_2_4(

                    display, config, IComposerClient::IComposerClient::Attribute::VSYNC_PERIOD);

            mComposerClient->setActiveConfig(display, config);

            VsyncPeriodChangeTimeline timeline;

            IComposerClient::VsyncPeriodChangeConstraints constraints;

            constraints.desiredTimeNanos = systemTime();

            constraints.seamlessRequired = false;

            EXPECT_EQ(Error::NONE, mComposerClient->setActiveConfigWithConstraints(

                                           display, config, constraints, &timeline));

            if (timeline.refreshRequired) {

                sendRefreshFrame(timeline);

            }

            waitForVsyncPeriodChange(display, timeline, constraints.desiredTimeNanos, 0,

                                     expectedVsyncPeriodNanos);

            VsyncPeriodNanos vsyncPeriodNanos;

            int retryCount = 100;

            do {

                std::this_thread::sleep_for(10ms);

                vsyncPeriodNanos = 0;

                EXPECT_EQ(Error::NONE,

                          mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));

                --retryCount;

            } while (vsyncPeriodNanos != expectedVsyncPeriodNanos && retryCount > 0);

            EXPECT_EQ(vsyncPeriodNanos, expectedVsyncPeriodNanos);

            // Make sure that the vsync period stays the same if the active config is not changed.

            auto timeout = 1ms;

            for (int i = 0; i < 10; i++) {

                std::this_thread::sleep_for(timeout);

                timeout *= 2;

                vsyncPeriodNanos = 0;

                EXPECT_EQ(Error::NONE,

                          mComposerClient->getDisplayVsyncPeriod(display, &vsyncPeriodNanos));

                EXPECT_EQ(vsyncPeriodNanos, expectedVsyncPeriodNanos);

            }

        }

    }

}