1// 2// Copyright (C) 2012 The Android Open Source Project 3// 4// Licensed under the Apache License, Version 2.0 (the "License"); 5// you may not use this file except in compliance with the License. 6// You may obtain a copy of the License at 7// 8// http://www.apache.org/licenses/LICENSE-2.0 9// 10// Unless required by applicable law or agreed to in writing, software 11// distributed under the License is distributed on an "AS IS" BASIS, 12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13// See the License for the specific language governing permissions and 14// limitations under the License. 15// 16 17#include "update_engine/common/cpu_limiter.h" 18 19#include <gtest/gtest.h> 20 21namespace chromeos_update_engine { 22 23class CPULimiterTest : public ::testing::Test {}; 24 25namespace { 26// Compares cpu shares and returns an integer that is less 27// than, equal to or greater than 0 if |shares_lhs| is, 28// respectively, lower than, same as or higher than |shares_rhs|. 29int CompareCpuShares(CpuShares shares_lhs, CpuShares shares_rhs) { 30 return static_cast<int>(shares_lhs) - static_cast<int>(shares_rhs); 31} 32} // namespace 33 34// Tests the CPU shares enum is in the order we expect it. 35TEST(CPULimiterTest, CompareCpuSharesTest) { 36 EXPECT_LT(CompareCpuShares(CpuShares::kLow, CpuShares::kNormal), 0); 37 EXPECT_GT(CompareCpuShares(CpuShares::kNormal, CpuShares::kLow), 0); 38 EXPECT_EQ(CompareCpuShares(CpuShares::kNormal, CpuShares::kNormal), 0); 39 EXPECT_GT(CompareCpuShares(CpuShares::kHigh, CpuShares::kNormal), 0); 40} 41 42} // namespace chromeos_update_engine 43