211 lines
9.2 KiB
C++
211 lines
9.2 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 <gtest/gtest.h>
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#include "adaptivecpu/KernelCpuFeatureReader.h"
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#include "mocks.h"
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using testing::_;
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using testing::ByMove;
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using testing::MatchesRegex;
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using testing::Return;
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using std::chrono_literals::operator""ns;
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namespace aidl {
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namespace google {
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namespace hardware {
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namespace power {
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namespace impl {
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namespace pixel {
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TEST(KernelCpuFeatureReaderTest, valid) {
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std::unique_ptr<MockFilesystem> filesystem = std::make_unique<MockFilesystem>();
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std::unique_ptr<MockTimeSource> timeSource = std::make_unique<MockTimeSource>();
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EXPECT_CALL(*timeSource, GetKernelTime())
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.Times(2)
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.WillOnce(Return(100ns))
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.WillOnce(Return(200ns));
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EXPECT_CALL(*filesystem, ReadFileStream("/proc/vendor_sched/acpu_stats", _))
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.WillOnce([](auto path __attribute__((unused)), auto result) {
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// Empty file, we will populate in ResetFileStream.
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*result = std::make_unique<std::istringstream>("");
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return true;
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});
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EXPECT_CALL(*filesystem, ResetFileStream(_))
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.Times(2)
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.WillOnce([](auto &result) {
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std::array<acpu_stats, NUM_CPU_CORES> acpuStats{{
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{.weighted_sum_freq = 100, .total_idle_time_ns = 100},
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{.weighted_sum_freq = 100, .total_idle_time_ns = 100},
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{.weighted_sum_freq = 100, .total_idle_time_ns = 100},
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{.weighted_sum_freq = 100, .total_idle_time_ns = 100},
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{.weighted_sum_freq = 200, .total_idle_time_ns = 200},
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{.weighted_sum_freq = 200, .total_idle_time_ns = 200},
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{.weighted_sum_freq = 300, .total_idle_time_ns = 200},
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{.weighted_sum_freq = 300, .total_idle_time_ns = 200},
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}};
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char *bytes = reinterpret_cast<char *>(acpuStats.begin());
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static_cast<std::istringstream &>(*result).str(
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std::string(bytes, bytes + sizeof(acpuStats)));
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return true;
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})
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.WillOnce([](auto &result) {
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std::array<acpu_stats, NUM_CPU_CORES> acpuStats{{
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{.weighted_sum_freq = 200, .total_idle_time_ns = 150},
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{.weighted_sum_freq = 100, .total_idle_time_ns = 150},
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{.weighted_sum_freq = 100, .total_idle_time_ns = 150},
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{.weighted_sum_freq = 100, .total_idle_time_ns = 150},
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{.weighted_sum_freq = 300, .total_idle_time_ns = 300},
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{.weighted_sum_freq = 200, .total_idle_time_ns = 300},
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{.weighted_sum_freq = 400, .total_idle_time_ns = 300},
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{.weighted_sum_freq = 300, .total_idle_time_ns = 300},
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}};
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char *bytes = reinterpret_cast<char *>(acpuStats.begin());
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static_cast<std::istringstream &>(*result).str(
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std::string(bytes, bytes + sizeof(acpuStats)));
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return true;
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});
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KernelCpuFeatureReader reader(std::move(filesystem), std::move(timeSource));
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ASSERT_TRUE(reader.Init());
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std::array<double, NUM_CPU_POLICIES> cpuPolicyAverageFrequencyHz;
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std::array<double, NUM_CPU_CORES> cpuCoreIdleTimesPercentage;
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ASSERT_TRUE(
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reader.GetRecentCpuFeatures(&cpuPolicyAverageFrequencyHz, &cpuCoreIdleTimesPercentage));
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std::array<double, NUM_CPU_POLICIES> expectedFrequencies{{1, 1, 1}};
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std::array<double, NUM_CPU_CORES> expectedIdleTimes{{0.5, 0.5, 0.5, 0.5, 1, 1, 1, 1}};
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ASSERT_EQ(cpuPolicyAverageFrequencyHz, expectedFrequencies);
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ASSERT_EQ(cpuCoreIdleTimesPercentage, expectedIdleTimes);
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}
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TEST(KernelCpuFeatureReaderTest, noFile) {
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std::unique_ptr<MockFilesystem> filesystem = std::make_unique<MockFilesystem>();
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std::unique_ptr<MockTimeSource> timeSource = std::make_unique<MockTimeSource>();
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EXPECT_CALL(*filesystem, ReadFileStream("/proc/vendor_sched/acpu_stats", _))
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.WillOnce(Return(false));
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KernelCpuFeatureReader reader(std::move(filesystem), std::move(timeSource));
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ASSERT_FALSE(reader.Init());
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}
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TEST(KernelCpuFeatureReaderTest, frequencies_capsNegativeDiff) {
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std::unique_ptr<MockFilesystem> filesystem = std::make_unique<MockFilesystem>();
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std::unique_ptr<MockTimeSource> timeSource = std::make_unique<MockTimeSource>();
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EXPECT_CALL(*timeSource, GetKernelTime())
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.Times(2)
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.WillOnce(Return(100ns))
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.WillOnce(Return(200ns));
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EXPECT_CALL(*filesystem, ReadFileStream("/proc/vendor_sched/acpu_stats", _))
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.WillOnce([](auto path __attribute__((unused)), auto result) {
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// Empty file, we will populate in ResetFileStream.
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*result = std::make_unique<std::istringstream>("");
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return true;
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});
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EXPECT_CALL(*filesystem, ResetFileStream(_))
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.Times(2)
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.WillOnce([](auto &result) {
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std::array<acpu_stats, NUM_CPU_CORES> acpuStats{{
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{.weighted_sum_freq = 200, .total_idle_time_ns = 100},
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}};
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char *bytes = reinterpret_cast<char *>(acpuStats.begin());
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static_cast<std::istringstream &>(*result).str(
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std::string(bytes, bytes + sizeof(acpuStats)));
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return true;
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})
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.WillOnce([](auto &result) {
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std::array<acpu_stats, NUM_CPU_CORES> acpuStats{{
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{.weighted_sum_freq = 100, .total_idle_time_ns = 150},
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}};
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char *bytes = reinterpret_cast<char *>(acpuStats.begin());
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static_cast<std::istringstream &>(*result).str(
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std::string(bytes, bytes + sizeof(acpuStats)));
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return true;
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});
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KernelCpuFeatureReader reader(std::move(filesystem), std::move(timeSource));
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ASSERT_TRUE(reader.Init());
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std::array<double, NUM_CPU_POLICIES> cpuPolicyAverageFrequencyHz;
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std::array<double, NUM_CPU_CORES> cpuCoreIdleTimesPercentage;
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ASSERT_TRUE(
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reader.GetRecentCpuFeatures(&cpuPolicyAverageFrequencyHz, &cpuCoreIdleTimesPercentage));
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std::array<double, NUM_CPU_POLICIES> expectedFrequencies{{0}};
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ASSERT_EQ(cpuPolicyAverageFrequencyHz, expectedFrequencies);
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}
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TEST(KernelCpuFeatureReaderTest, idleTimes_capsNegativeDiff) {
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std::unique_ptr<MockFilesystem> filesystem = std::make_unique<MockFilesystem>();
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std::unique_ptr<MockTimeSource> timeSource = std::make_unique<MockTimeSource>();
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EXPECT_CALL(*timeSource, GetKernelTime())
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.Times(2)
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.WillOnce(Return(100ns))
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.WillOnce(Return(200ns));
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EXPECT_CALL(*filesystem, ReadFileStream("/proc/vendor_sched/acpu_stats", _))
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.WillOnce([](auto path __attribute__((unused)), auto result) {
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// Empty file, we will populate in ResetFileStream.
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*result = std::make_unique<std::istringstream>("");
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return true;
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});
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EXPECT_CALL(*filesystem, ResetFileStream(_))
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.Times(2)
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.WillOnce([](auto &result) {
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std::array<acpu_stats, NUM_CPU_CORES> acpuStats{{
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{.weighted_sum_freq = 100, .total_idle_time_ns = 150},
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}};
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char *bytes = reinterpret_cast<char *>(acpuStats.begin());
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static_cast<std::istringstream &>(*result).str(
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std::string(bytes, bytes + sizeof(acpuStats)));
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return true;
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})
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.WillOnce([](auto &result) {
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std::array<acpu_stats, NUM_CPU_CORES> acpuStats{{
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{.weighted_sum_freq = 200, .total_idle_time_ns = 100},
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}};
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char *bytes = reinterpret_cast<char *>(acpuStats.begin());
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static_cast<std::istringstream &>(*result).str(
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std::string(bytes, bytes + sizeof(acpuStats)));
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return true;
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});
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KernelCpuFeatureReader reader(std::move(filesystem), std::move(timeSource));
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ASSERT_TRUE(reader.Init());
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std::array<double, NUM_CPU_POLICIES> cpuPolicyAverageFrequencyHz;
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std::array<double, NUM_CPU_CORES> cpuCoreIdleTimesPercentage;
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ASSERT_TRUE(
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reader.GetRecentCpuFeatures(&cpuPolicyAverageFrequencyHz, &cpuCoreIdleTimesPercentage));
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std::array<double, NUM_CPU_CORES> expectedIdleTimes{{0}};
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ASSERT_EQ(cpuCoreIdleTimesPercentage, expectedIdleTimes);
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}
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} // namespace pixel
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} // namespace impl
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} // namespace power
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} // namespace hardware
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} // namespace google
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} // namespace aidl
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