81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/*
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* Copyright (C) 2022 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 "chre/util/system/stats_container.h"
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#include "gtest/gtest.h"
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TEST(StatsContainer, MeanBasicTest) {
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chre::StatsContainer<uint8_t> testContainer;
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ASSERT_EQ(testContainer.getMean(), 0);
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testContainer.addValue(10);
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testContainer.addValue(20);
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ASSERT_EQ(testContainer.getMean(), 15);
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testContainer.addValue(40);
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ASSERT_EQ(testContainer.getMean(), (10 + 20 + 40) / 3);
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}
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TEST(StatsContainer, UINTMeanOverflowTest) {
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chre::StatsContainer<uint8_t> testContainer;
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testContainer.addValue(200);
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testContainer.addValue(100);
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ASSERT_EQ(testContainer.getMean(), 150);
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}
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TEST(StatsContainer, AddSmallerValueThanMeanCheck) {
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chre::StatsContainer<uint16_t> testContainer;
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testContainer.addValue(10);
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testContainer.addValue(20);
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testContainer.addValue(30);
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ASSERT_EQ(testContainer.getMean(), 20);
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testContainer.addValue(4);
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ASSERT_EQ(testContainer.getMean(), 16);
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}
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TEST(StatsContainer, AddBiggerValueThanMeanCheck) {
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chre::StatsContainer<uint16_t> testContainer;
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testContainer.addValue(10);
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testContainer.addValue(20);
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testContainer.addValue(30);
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ASSERT_EQ(testContainer.getMean(), 20);
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testContainer.addValue(40);
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ASSERT_EQ(testContainer.getMean(), 25);
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}
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TEST(StatsContainer, OverAverageWindowCheck) {
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uint64_t maxCount = 3;
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chre::StatsContainer<uint16_t> testContainer(maxCount);
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testContainer.addValue(10);
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testContainer.addValue(20);
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testContainer.addValue(30);
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ASSERT_EQ(testContainer.getMean(), 20);
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testContainer.addValue(40);
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/**
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* Only check if StatsContainer still works after have more element than its
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* averageWindow. Does not check the correctness of the estimated value
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*/
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ASSERT_GT(testContainer.getMean(), 20);
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} |