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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 "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::NaggyMock;
#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;
}
};
TEST(ShellSubscriberTest, testPushedSubscription) {
// 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));
// create a simple config to get screen events
ShellSubscription config;
config.add_pushed()->set_atom_id(29);
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]);
// create a shell subscriber.
sp<MockUidMap> uidMap = new NaggyMock<MockUidMap>();
sp<ShellSubscriber> shellClient = new ShellSubscriber(uidMap);
sp<MyResultReceiver> resultReceiver = new MyResultReceiver();
LogEvent event1(29, 1000);
event1.write(2);
event1.init();
// 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);
// send a log event that matches the config.
std::thread log_reader([&shellClient, &event1] { shellClient->onLogEvent(event1); });
log_reader.detach();
if (log_reader.joinable()) {
log_reader.join();
}
// wait for the data to be written.
std::this_thread::sleep_for(100ms);
// this is the expected screen event atom.
Atom atom;
atom.mutable_screen_state_changed()->set_state(
::android::view::DisplayStateEnum::DISPLAY_STATE_ON);
int atom_size = atom.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(atom_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
Atom 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(atom_size);
atom.SerializeToArray(&atomBuffer[0], atom_size);
EXPECT_EQ(atomBuffer, dataBuffer);
close(fds_data[0]);
}
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
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