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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specic language governing permissions and
* limitations under the License.
*/
#include <algorithm>
#include <thread>
#include <android-base/file.h>
#include <android-base/stringprintf.h>
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include "perfmgr/Node.h"
namespace android {
namespace perfmgr {
using namespace std::chrono_literals;
constexpr double kTIMING_TOLERANCE_MS = std::chrono::milliseconds(25).count();
constexpr auto kSLEEP_TOLERANCE_MS = 2ms;
static inline void _VerifyPathValue(const std::string& path, const std::string& value) {
std::string s;
EXPECT_TRUE(android::base::ReadFileToString(path, &s)) << strerror(errno);
EXPECT_EQ(value, s);
}
// Test init with no default value
TEST(NodeTest, NoInitDefaultTest) {
TemporaryFile tf;
Node t("t", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 1, false);
_VerifyPathValue(tf.path, "");
}
// Test init with default value
TEST(NodeTest, InitDefaultTest) {
TemporaryFile tf;
Node t("t", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 1, true);
_VerifyPathValue(tf.path, "value1");
TemporaryFile tf2;
Node t2("t2", tf2.path, {{"value0"}, {"value1"}, {"value2"}}, 0, true);
_VerifyPathValue(tf2.path, "value0");
}
// Test DumpToFd
TEST(NodeTest, DumpToFdTest) {
TemporaryFile tf;
Node t("test_dump", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 1, true);
TemporaryFile dumptf;
t.DumpToFd(dumptf.fd);
fsync(dumptf.fd);
std::string buf(android::base::StringPrintf("test_dump\t%s\t1\tvalue1\n",
tf.path));
_VerifyPathValue(dumptf.path, buf);
}
// Test GetValueIndex
TEST(NodeTest, GetValueIndexTest) {
TemporaryFile tf;
Node t("t", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 1, false);
std::size_t index = 0;
EXPECT_TRUE(t.GetValueIndex("value2", &index));
EXPECT_EQ(2u, index);
index = 1234;
EXPECT_FALSE(t.GetValueIndex("NON_EXIST", &index));
EXPECT_EQ(1234u, index);
}
// Test GetValues
TEST(NodeTest, GetValuesTest) {
TemporaryFile tf;
Node t("t", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 1, false);
std::vector values = t.GetValues();
EXPECT_EQ(3u, values.size());
EXPECT_EQ("value0", values[0]);
EXPECT_EQ("value1", values[1]);
EXPECT_EQ("value2", values[2]);
}
// Test get more properties
TEST(NodeTest, GetPropertiesTest) {
std::string test_name = "TESTREQ_1";
std::string test_path = "TEST_PATH";
Node t(test_name, test_path, {}, 0, false, true);
EXPECT_EQ(test_name, t.GetName());
EXPECT_EQ(test_path, t.GetPath());
EXPECT_EQ(0u, t.GetValues().size());
EXPECT_EQ(0u, t.GetDefaultIndex());
EXPECT_FALSE(t.GetResetOnInit());
EXPECT_TRUE(t.GetHoldFd());
}
// Test add request fail and retry
TEST(NodeTest, AddRequestTestFail) {
Node t("t", "/sys/android/nonexist_node_test",
{{"value0"}, {"value1"}, {"value2"}}, 2, true);
auto start = std::chrono::steady_clock::now();
EXPECT_TRUE(t.AddRequest(1, "INTERACTION", start + 200ms));
std::chrono::milliseconds expire_time = t.Update();
// Add request @ value1
EXPECT_NEAR(std::chrono::milliseconds(200).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Add request @ value0 higher prio than value1
EXPECT_TRUE(t.AddRequest(0, "LAUNCH", start + 2000ms));
expire_time = t.Update();
// Retry in 500 ms
EXPECT_NEAR(std::chrono::milliseconds(500).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
}
// Test add request
TEST(NodeTest, AddRequestTest) {
TemporaryFile tf;
Node t("t", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 2, true);
auto start = std::chrono::steady_clock::now();
EXPECT_TRUE(t.AddRequest(1, "INTERACTION", start + 500ms));
std::chrono::milliseconds expire_time = t.Update();
// Add request @ value1
_VerifyPathValue(tf.path, "value1");
EXPECT_NEAR(std::chrono::milliseconds(500).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Add request @ value0 higher prio than value1
EXPECT_TRUE(t.AddRequest(0, "LAUNCH", start + 200ms));
expire_time = t.Update();
_VerifyPathValue(tf.path, "value0");
EXPECT_NEAR(std::chrono::milliseconds(200).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Let high prio request timeout, now only request @ value1 active
std::this_thread::sleep_for(expire_time + kSLEEP_TOLERANCE_MS);
expire_time = t.Update();
_VerifyPathValue(tf.path, "value1");
EXPECT_NEAR(std::chrono::milliseconds(300).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Let all requests timeout, now default value2
std::this_thread::sleep_for(expire_time + kSLEEP_TOLERANCE_MS);
expire_time = t.Update();
_VerifyPathValue(tf.path, "value2");
EXPECT_EQ(std::chrono::milliseconds::max(), expire_time);
}
// Test remove request
TEST(NodeTest, RemoveRequestTest) {
TemporaryFile tf;
Node t("t", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 2, true);
auto start = std::chrono::steady_clock::now();
EXPECT_TRUE(t.AddRequest(1, "INTERACTION", start + 500ms));
std::chrono::milliseconds expire_time = t.Update();
// Add request @ value1
_VerifyPathValue(tf.path, "value1");
EXPECT_NEAR(std::chrono::milliseconds(500).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Add request @ value0 higher prio than value1
EXPECT_TRUE(t.AddRequest(0, "LAUNCH", start + 200ms));
expire_time = t.Update();
_VerifyPathValue(tf.path, "value0");
EXPECT_NEAR(std::chrono::milliseconds(200).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Remove high prio request, now only request @ value1 active
t.RemoveRequest("LAUNCH");
expire_time = t.Update();
_VerifyPathValue(tf.path, "value1");
EXPECT_NEAR(std::chrono::milliseconds(500).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Remove request, now default value2
t.RemoveRequest("INTERACTION");
expire_time = t.Update();
_VerifyPathValue(tf.path, "value2");
EXPECT_EQ(std::chrono::milliseconds::max(), expire_time);
}
// Test add request with holding fd
TEST(NodeTest, AddRequestTestHoldFdOverride) {
TemporaryFile tf;
Node t("t", tf.path, {{"value0"}, {"value1"}, {"value2"}}, 2, true, true);
EXPECT_TRUE(t.GetHoldFd());
auto start = std::chrono::steady_clock::now();
EXPECT_TRUE(t.AddRequest(1, "INTERACTION", start + 500ms));
std::chrono::milliseconds expire_time = t.Update();
// Add request @ value1
_VerifyPathValue(tf.path, "value1");
EXPECT_NEAR(std::chrono::milliseconds(500).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Add request @ value0 higher prio than value1
EXPECT_TRUE(t.AddRequest(0, "LAUNCH", start + 200ms));
expire_time = t.Update();
_VerifyPathValue(tf.path, "value0");
EXPECT_NEAR(std::chrono::milliseconds(200).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Add request @ value0 shorter
EXPECT_TRUE(t.AddRequest(0, "LAUNCH", start + 100ms));
expire_time = t.Update();
_VerifyPathValue(tf.path, "value0");
EXPECT_NEAR(std::chrono::milliseconds(200).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Add request @ value0 longer
EXPECT_TRUE(t.AddRequest(0, "LAUNCH", start + 300ms));
expire_time = t.Update();
_VerifyPathValue(tf.path, "value0");
EXPECT_NEAR(std::chrono::milliseconds(300).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Remove high prio request, now only request @ value1 active
t.RemoveRequest("LAUNCH");
expire_time = t.Update();
_VerifyPathValue(tf.path, "value1");
EXPECT_NEAR(std::chrono::milliseconds(500).count(), expire_time.count(),
kTIMING_TOLERANCE_MS);
// Remove request, now default value2
t.RemoveRequest("INTERACTION");
expire_time = t.Update();
_VerifyPathValue(tf.path, "value2");
EXPECT_EQ(std::chrono::milliseconds::max(), expire_time);
}
} // namespace perfmgr
} // namespace android
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