blob: 8a5c90687ed243b845cee3dbbaffbe4ada50487e [file] [log] [blame] [edit]
// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cpu_affinity.h"
#include "fml/file.h"
#include "fml/mapping.h"
#include "gtest/gtest.h"
#include "logging.h"
namespace fml {
namespace testing {
TEST(CpuAffinity, NonAndroidPlatformDefaults) {
ASSERT_FALSE(fml::EfficiencyCoreCount().has_value());
ASSERT_TRUE(fml::RequestAffinity(fml::CpuAffinity::kEfficiency));
}
TEST(CpuAffinity, NormalSlowMedFastCores) {
auto speeds = {CpuIndexAndSpeed{.index = 0, .speed = 1},
CpuIndexAndSpeed{.index = 1, .speed = 2},
CpuIndexAndSpeed{.index = 2, .speed = 3}};
auto tracker = CPUSpeedTracker(speeds);
ASSERT_TRUE(tracker.IsValid());
ASSERT_EQ(tracker.GetIndices(CpuAffinity::kEfficiency)[0], 0u);
ASSERT_EQ(tracker.GetIndices(CpuAffinity::kPerformance)[0], 2u);
ASSERT_EQ(tracker.GetIndices(CpuAffinity::kNotPerformance).size(), 2u);
ASSERT_EQ(tracker.GetIndices(CpuAffinity::kNotPerformance)[0], 0u);
ASSERT_EQ(tracker.GetIndices(CpuAffinity::kNotPerformance)[1], 1u);
}
TEST(CpuAffinity, NoCpuData) {
auto tracker = CPUSpeedTracker({});
ASSERT_FALSE(tracker.IsValid());
}
TEST(CpuAffinity, AllSameSpeed) {
auto speeds = {CpuIndexAndSpeed{.index = 0, .speed = 1},
CpuIndexAndSpeed{.index = 1, .speed = 1},
CpuIndexAndSpeed{.index = 2, .speed = 1}};
auto tracker = CPUSpeedTracker(speeds);
ASSERT_FALSE(tracker.IsValid());
}
TEST(CpuAffinity, SingleCore) {
auto speeds = {CpuIndexAndSpeed{.index = 0, .speed = 1}};
auto tracker = CPUSpeedTracker(speeds);
ASSERT_FALSE(tracker.IsValid());
}
TEST(CpuAffinity, FileParsing) {
fml::ScopedTemporaryDirectory base_dir;
ASSERT_TRUE(base_dir.fd().is_valid());
// Generate a fake CPU speed file
fml::DataMapping test_data(std::string("12345"));
ASSERT_TRUE(fml::WriteAtomically(base_dir.fd(), "test_file", test_data));
auto file = fml::OpenFileReadOnly(base_dir.fd(), "test_file");
ASSERT_TRUE(file.is_valid());
// Open file and parse speed.
auto result = ReadIntFromFile(base_dir.path() + "/test_file");
ASSERT_TRUE(result.has_value());
ASSERT_EQ(result.value_or(0), 12345);
}
TEST(CpuAffinity, FileParsingWithNonNumber) {
fml::ScopedTemporaryDirectory base_dir;
ASSERT_TRUE(base_dir.fd().is_valid());
// Generate a fake CPU speed file
fml::DataMapping test_data(std::string("whoa this isnt a number"));
ASSERT_TRUE(fml::WriteAtomically(base_dir.fd(), "test_file", test_data));
auto file = fml::OpenFileReadOnly(base_dir.fd(), "test_file");
ASSERT_TRUE(file.is_valid());
// Open file and parse speed.
auto result = ReadIntFromFile(base_dir.path() + "/test_file");
ASSERT_FALSE(result.has_value());
}
TEST(CpuAffinity, MissingFileParsing) {
auto result = ReadIntFromFile("/does_not_exist");
ASSERT_FALSE(result.has_value());
}
} // namespace testing
} // namespace fml