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// Copyright (C) 2018 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 specific language governing permissions and
// limitations under the License.
#include <gtest/gtest.h>
#include <unistd.h>
#include "frameworks/base/cmds/statsd/src/atoms.pb.h"
#include "frameworks/base/cmds/statsd/src/shell/shell_config.pb.h"
#include "frameworks/base/cmds/statsd/src/shell/shell_data.pb.h"
#include "src/shell/ShellSubscriber.h"
#include "tests/metrics/metrics_test_helper.h"
#include <stdio.h>
#include <vector>
using namespace android::os::statsd;
using android::sp;
using std::vector;
using testing::_;
using testing::Invoke;
using testing::NaggyMock;
using testing::StrictMock;
#ifdef __ANDROID__
class MyResultReceiver : public BnResultReceiver {
public:
Mutex mMutex;
Condition mCondition;
bool mHaveResult = false;
int32_t mResult = 0;
virtual void send(int32_t resultCode) {
AutoMutex _l(mMutex);
mResult = resultCode;
mHaveResult = true;
mCondition.signal();
}
int32_t waitForResult() {
AutoMutex _l(mMutex);
mCondition.waitRelative(mMutex, 1000000000);
return mResult;
}
};
void runShellTest(ShellSubscription config, sp<MockUidMap> uidMap,
sp<MockStatsPullerManager> pullerManager,
const vector<std::shared_ptr<LogEvent>>& pushedEvents,
const ShellData& expectedData) {
// set up 2 pipes for read/write config and data
int fds_config[2];
ASSERT_EQ(0, pipe(fds_config));
int fds_data[2];
ASSERT_EQ(0, pipe(fds_data));
size_t bufferSize = config.ByteSize();
// write the config to pipe, first write size of the config
vector<uint8_t> size_buffer(sizeof(bufferSize));
std::memcpy(size_buffer.data(), &bufferSize, sizeof(bufferSize));
write(fds_config[1], &bufferSize, sizeof(bufferSize));
// then write config itself
vector<uint8_t> buffer(bufferSize);
config.SerializeToArray(&buffer[0], bufferSize);
write(fds_config[1], buffer.data(), bufferSize);
close(fds_config[1]);
sp<ShellSubscriber> shellClient = new ShellSubscriber(uidMap, pullerManager);
sp<MyResultReceiver> resultReceiver = new MyResultReceiver();
// mimic a binder thread that a shell subscriber runs on. it would block.
std::thread reader([&resultReceiver, &fds_config, &fds_data, &shellClient] {
shellClient->startNewSubscription(fds_config[0], fds_data[1], resultReceiver);
});
reader.detach();
// let the shell subscriber to receive the config from pipe.
std::this_thread::sleep_for(100ms);
if (pushedEvents.size() > 0) {
// send a log event that matches the config.
std::thread log_reader([&shellClient, &pushedEvents] {
for (const auto& event : pushedEvents) {
shellClient->onLogEvent(*event);
}
});
log_reader.detach();
if (log_reader.joinable()) {
log_reader.join();
}
}
// wait for the data to be written.
std::this_thread::sleep_for(100ms);
int expected_data_size = expectedData.ByteSize();
// now read from the pipe. firstly read the atom size.
size_t dataSize = 0;
EXPECT_EQ((int)sizeof(dataSize), read(fds_data[0], &dataSize, sizeof(dataSize)));
EXPECT_EQ(expected_data_size, (int)dataSize);
// then read that much data which is the atom in proto binary format
vector<uint8_t> dataBuffer(dataSize);
EXPECT_EQ((int)dataSize, read(fds_data[0], dataBuffer.data(), dataSize));
// make sure the received bytes can be parsed to an atom
ShellData receivedAtom;
EXPECT_TRUE(receivedAtom.ParseFromArray(dataBuffer.data(), dataSize) != 0);
// serialze the expected atom to bytes. and compare. to make sure they are the same.
vector<uint8_t> atomBuffer(expected_data_size);
expectedData.SerializeToArray(&atomBuffer[0], expected_data_size);
EXPECT_EQ(atomBuffer, dataBuffer);
close(fds_data[0]);
}
TEST(ShellSubscriberTest, testPushedSubscription) {
sp<MockUidMap> uidMap = new NaggyMock<MockUidMap>();
sp<MockStatsPullerManager> pullerManager = new StrictMock<MockStatsPullerManager>();
vector<std::shared_ptr<LogEvent>> pushedList;
std::shared_ptr<LogEvent> event1 =
std::make_shared<LogEvent>(29 /*screen_state_atom_id*/, 1000 /*timestamp*/);
event1->write(::android::view::DisplayStateEnum::DISPLAY_STATE_ON);
event1->init();
pushedList.push_back(event1);
// create a simple config to get screen events
ShellSubscription config;
config.add_pushed()->set_atom_id(29);
// this is the expected screen event atom.
ShellData shellData;
shellData.add_atom()->mutable_screen_state_changed()->set_state(
::android::view::DisplayStateEnum::DISPLAY_STATE_ON);
runShellTest(config, uidMap, pullerManager, pushedList, shellData);
}
namespace {
int kUid1 = 1000;
int kUid2 = 2000;
int kCpuTime1 = 100;
int kCpuTime2 = 200;
ShellData getExpectedShellData() {
ShellData shellData;
auto* atom1 = shellData.add_atom()->mutable_cpu_active_time();
atom1->set_uid(kUid1);
atom1->set_time_millis(kCpuTime1);
auto* atom2 = shellData.add_atom()->mutable_cpu_active_time();
atom2->set_uid(kUid2);
atom2->set_time_millis(kCpuTime2);
return shellData;
}
ShellSubscription getPulledConfig() {
ShellSubscription config;
auto* pull_config = config.add_pulled();
pull_config->mutable_matcher()->set_atom_id(10016);
pull_config->set_freq_millis(2000);
return config;
}
} // namespace
TEST(ShellSubscriberTest, testPulledSubscription) {
sp<MockUidMap> uidMap = new NaggyMock<MockUidMap>();
sp<MockStatsPullerManager> pullerManager = new StrictMock<MockStatsPullerManager>();
EXPECT_CALL(*pullerManager, Pull(10016, _, _))
.WillRepeatedly(
Invoke([](int tagId, int64_t timeNs, vector<std::shared_ptr<LogEvent>>* data) {
data->clear();
shared_ptr<LogEvent> event = make_shared<LogEvent>(tagId, timeNs);
event->write(kUid1);
event->write(kCpuTime1);
event->init();
data->push_back(event);
// another event
event = make_shared<LogEvent>(tagId, timeNs);
event->write(kUid2);
event->write(kCpuTime2);
event->init();
data->push_back(event);
return true;
}));
runShellTest(getPulledConfig(), uidMap, pullerManager, vector<std::shared_ptr<LogEvent>>(),
getExpectedShellData());
}
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
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