75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <input/LatencyStatistics.h>
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#include <cmath>
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#include <limits>
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#include <thread>
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namespace android {
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namespace test {
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TEST(LatencyStatisticsTest, ResetStats) {
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LatencyStatistics stats{5min};
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stats.addValue(5.0);
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stats.addValue(19.3);
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stats.addValue(20);
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stats.reset();
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ASSERT_EQ(stats.getCount(), 0u);
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ASSERT_EQ(std::isnan(stats.getStDev()), true);
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ASSERT_EQ(std::isnan(stats.getMean()), true);
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}
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TEST(LatencyStatisticsTest, AddStatsValue) {
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LatencyStatistics stats{5min};
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stats.addValue(5.0);
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ASSERT_EQ(stats.getMin(), 5.0);
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ASSERT_EQ(stats.getMax(), 5.0);
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ASSERT_EQ(stats.getCount(), 1u);
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ASSERT_EQ(stats.getMean(), 5.0);
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ASSERT_EQ(stats.getStDev(), 0.0);
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}
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TEST(LatencyStatisticsTest, AddMultipleStatsValue) {
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LatencyStatistics stats{5min};
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stats.addValue(4.0);
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stats.addValue(6.0);
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stats.addValue(8.0);
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stats.addValue(10.0);
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float stdev = stats.getStDev();
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ASSERT_EQ(stats.getMin(), 4.0);
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ASSERT_EQ(stats.getMax(), 10.0);
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ASSERT_EQ(stats.getCount(), 4u);
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ASSERT_EQ(stats.getMean(), 7.0);
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ASSERT_EQ(stdev * stdev, 5.0);
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}
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TEST(LatencyStatisticsTest, ShouldReportStats) {
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LatencyStatistics stats{0min};
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stats.addValue(5.0);
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std::this_thread::sleep_for(1us);
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ASSERT_EQ(stats.shouldReport(), true);
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}
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} // namespace test
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} // namespace android
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