cmds/statsd/tests/LogEvent_test.cpp

// 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 specific language governing permissions and
// limitations under the License.

#include "src/logd/LogEvent.h"
#include <gtest/gtest.h>
#include <log/log_event_list.h>
#include "frameworks/base/cmds/statsd/src/atoms.pb.h"
#include "frameworks/base/core/proto/android/stats/launcher/launcher.pb.h"
#include <stats_event.h>


#ifdef __ANDROID__

namespace android {
namespace os {
namespace statsd {

using std::string;
using std::vector;
using util::ProtoOutputStream;
using util::ProtoReader;


#ifdef NEW_ENCODING_SCHEME

Field getField(int32_t tag, const vector<int32_t>& pos, int32_t depth, const vector<bool>& last) {
    Field f(tag, (int32_t*)pos.data(), depth);

    // For loop starts at 1 because the last field at depth 0 is not decorated.
    for (int i = 1; i < depth; i++) {
        if (last[i]) f.decorateLastPos(i);
    }

    return f;
}

TEST(LogEventTest, TestPrimitiveParsing) {
    struct stats_event* event = stats_event_obtain();
    stats_event_set_atom_id(event, 100);
    stats_event_write_int32(event, 10);
    stats_event_write_int64(event, 0x123456789);
    stats_event_write_float(event, 2.0);
    stats_event_write_bool(event, true);
    stats_event_build(event);

    size_t size;
    uint8_t* buf = stats_event_get_buffer(event, &size);

    LogEvent logEvent(buf, size, /*uid=*/ 1000);
    EXPECT_TRUE(logEvent.isValid());
    EXPECT_EQ(100, logEvent.GetTagId());

    const vector<FieldValue>& values = logEvent.getValues();
    EXPECT_EQ(4, values.size());

    const FieldValue& int32Item = values[0];
    Field expectedField = getField(100, {1, 1, 1}, 0, {false, false, false});
    EXPECT_EQ(expectedField, int32Item.mField);
    EXPECT_EQ(Type::INT, int32Item.mValue.getType());
    EXPECT_EQ(10, int32Item.mValue.int_value);

    const FieldValue& int64Item = values[1];
    expectedField = getField(100, {2, 1, 1}, 0, {false, false, false});
    EXPECT_EQ(expectedField, int64Item.mField);
    EXPECT_EQ(Type::LONG, int64Item.mValue.getType());
    EXPECT_EQ(0x123456789, int64Item.mValue.long_value);

    const FieldValue& floatItem = values[2];
    expectedField = getField(100, {3, 1, 1}, 0, {false, false, false});
    EXPECT_EQ(expectedField, floatItem.mField);
    EXPECT_EQ(Type::FLOAT, floatItem.mValue.getType());
    EXPECT_EQ(2.0, floatItem.mValue.float_value);

    const FieldValue& boolItem = values[3];
    expectedField = getField(100, {4, 1, 1}, 0, {true, false, false});
    EXPECT_EQ(expectedField, boolItem.mField);
    EXPECT_EQ(Type::INT, boolItem.mValue.getType()); // FieldValue does not support boolean type
    EXPECT_EQ(1, boolItem.mValue.int_value);

    stats_event_release(event);
}


TEST(LogEventTest, TestStringAndByteArrayParsing) {
    struct stats_event* event = stats_event_obtain();
    stats_event_set_atom_id(event, 100);
    string str = "test";
    stats_event_write_string8(event, str.c_str());
    stats_event_write_byte_array(event, (uint8_t*)str.c_str(), str.length());
    stats_event_build(event);

    size_t size;
    uint8_t* buf = stats_event_get_buffer(event, &size);

    LogEvent logEvent(buf, size, /*uid=*/ 1000);
    EXPECT_TRUE(logEvent.isValid());
    EXPECT_EQ(100, logEvent.GetTagId());

    const vector<FieldValue>& values = logEvent.getValues();
    EXPECT_EQ(2, values.size());

    const FieldValue& stringItem = values[0];
    Field expectedField = getField(100, {1, 1, 1}, 0, {false, false, false});
    EXPECT_EQ(expectedField, stringItem.mField);
    EXPECT_EQ(Type::STRING, stringItem.mValue.getType());
    EXPECT_EQ(str, stringItem.mValue.str_value);

    const FieldValue& storageItem = values[1];
    expectedField = getField(100, {2, 1, 1}, 0, {true, false, false});
    EXPECT_EQ(expectedField, storageItem.mField);
    EXPECT_EQ(Type::STORAGE, storageItem.mValue.getType());
    vector<uint8_t> expectedValue = {'t', 'e', 's', 't'};
    EXPECT_EQ(expectedValue, storageItem.mValue.storage_value);

    stats_event_release(event);
}

TEST(LogEventTest, TestEmptyString) {
    struct stats_event* event = stats_event_obtain();
    stats_event_set_atom_id(event, 100);
    string empty = "";
    stats_event_write_string8(event, empty.c_str());
    stats_event_build(event);

    size_t size;
    uint8_t* buf = stats_event_get_buffer(event, &size);

    LogEvent logEvent(buf, size, /*uid=*/ 1000);
    EXPECT_TRUE(logEvent.isValid());
    EXPECT_EQ(100, logEvent.GetTagId());

    const vector<FieldValue>& values = logEvent.getValues();
    EXPECT_EQ(1, values.size());

    const FieldValue& item = values[0];
    Field expectedField = getField(100, {1, 1, 1}, 0, {true, false, false});
    EXPECT_EQ(expectedField, item.mField);
    EXPECT_EQ(Type::STRING, item.mValue.getType());
    EXPECT_EQ(empty, item.mValue.str_value);

    stats_event_release(event);
}

TEST(LogEventTest, TestByteArrayWithNullCharacter) {
    struct stats_event* event = stats_event_obtain();
    stats_event_set_atom_id(event, 100);
    uint8_t message[] = {'\t', 'e', '\0', 's', 't'};
    stats_event_write_byte_array(event, message, 5);
    stats_event_build(event);

    size_t size;
    uint8_t* buf = stats_event_get_buffer(event, &size);

    LogEvent logEvent(buf, size, /*uid=*/ 1000);
    EXPECT_TRUE(logEvent.isValid());
    EXPECT_EQ(100, logEvent.GetTagId());

    const vector<FieldValue>& values = logEvent.getValues();
    EXPECT_EQ(1, values.size());

    const FieldValue& item = values[0];
    Field expectedField = getField(100, {1, 1, 1}, 0, {true, false, false});
    EXPECT_EQ(expectedField, item.mField);
    EXPECT_EQ(Type::STORAGE, item.mValue.getType());
    vector<uint8_t> expectedValue(message, message + 5);
    EXPECT_EQ(expectedValue, item.mValue.storage_value);

    stats_event_release(event);
}

TEST(LogEventTest, TestKeyValuePairs) {
    struct stats_event* event = stats_event_obtain();
    stats_event_set_atom_id(event, 100);

    struct key_value_pair pairs[4];
    pairs[0] = {.key = 0, .valueType = INT32_TYPE, .int32Value = 1};
    pairs[1] = {.key = 1, .valueType = INT64_TYPE, .int64Value = 0x123456789};
    pairs[2] = {.key = 2, .valueType = FLOAT_TYPE, .floatValue = 2.0};
    string str = "test";
    pairs[3] = {.key = 3, .valueType = STRING_TYPE, .stringValue = str.c_str()};

    stats_event_write_key_value_pairs(event, pairs, 4);
    stats_event_build(event);

    size_t size;
    uint8_t* buf = stats_event_get_buffer(event, &size);

    LogEvent logEvent(buf, size, /*uid=*/ 1000);
    EXPECT_TRUE(logEvent.isValid());
    EXPECT_EQ(100, logEvent.GetTagId());

    const vector<FieldValue>& values = logEvent.getValues();
    EXPECT_EQ(8, values.size()); // 2 FieldValues per key-value pair

    // Check the keys first
    for (int i = 0; i < values.size() / 2; i++) {
        const FieldValue& item = values[2 * i];
        int32_t depth1Pos = i + 1;
        bool depth1Last = i == (values.size() / 2 - 1);
        Field expectedField = getField(100, {1, depth1Pos, 1}, 2, {true, depth1Last, false});

        EXPECT_EQ(expectedField, item.mField);
        EXPECT_EQ(Type::INT, item.mValue.getType());
        EXPECT_EQ(i, item.mValue.int_value);
    }

    // Check the values now
    // Note: pos[2] = index of type in KeyValuePair in atoms.proto
    const FieldValue& int32Item = values[1];
    Field expectedField = getField(100, {1, 1, 2}, 2, {true, false, true});
    EXPECT_EQ(expectedField, int32Item.mField);
    EXPECT_EQ(Type::INT, int32Item.mValue.getType());
    EXPECT_EQ(1, int32Item.mValue.int_value);

    const FieldValue& int64Item = values[3];
    expectedField = getField(100, {1, 2, 3}, 2, {true, false, true});
    EXPECT_EQ(expectedField, int64Item.mField);
    EXPECT_EQ(Type::LONG, int64Item.mValue.getType());
    EXPECT_EQ(0x123456789, int64Item.mValue.long_value);

    const FieldValue& floatItem = values[5];
    expectedField = getField(100, {1, 3, 5}, 2, {true, false, true});
    EXPECT_EQ(expectedField, floatItem.mField);
    EXPECT_EQ(Type::FLOAT, floatItem.mValue.getType());
    EXPECT_EQ(2.0, floatItem.mValue.float_value);

    const FieldValue& stringItem = values[7];
    expectedField = getField(100, {1, 4, 4}, 2, {true, true, true});
    EXPECT_EQ(expectedField, stringItem.mField);
    EXPECT_EQ(Type::STRING, stringItem.mValue.getType());
    EXPECT_EQ(str, stringItem.mValue.str_value);

    stats_event_release(event);
}

TEST(LogEventTest, TestAttributionChain) {
    struct stats_event* event = stats_event_obtain();
    stats_event_set_atom_id(event, 100);

    string tag1 = "tag1";
    string tag2 = "tag2";

    uint32_t uids[] = {1001, 1002};
    const char* tags[] = {tag1.c_str(), tag2.c_str()};

    stats_event_write_attribution_chain(event, uids, tags, 2);
    stats_event_build(event);

    size_t size;
    uint8_t* buf = stats_event_get_buffer(event, &size);

    LogEvent logEvent(buf, size, /*uid=*/ 1000);
    EXPECT_TRUE(logEvent.isValid());
    EXPECT_EQ(100, logEvent.GetTagId());

    const vector<FieldValue>& values = logEvent.getValues();
    EXPECT_EQ(4, values.size()); // 2 per attribution node

    // Check first attribution node
    const FieldValue& uid1Item = values[0];
    Field expectedField = getField(100, {1, 1, 1}, 2, {true, false, false});
    EXPECT_EQ(expectedField, uid1Item.mField);
    EXPECT_EQ(Type::INT, uid1Item.mValue.getType());
    EXPECT_EQ(1001, uid1Item.mValue.int_value);

    const FieldValue& tag1Item = values[1];
    expectedField = getField(100, {1, 1, 2}, 2, {true, false, true});
    EXPECT_EQ(expectedField, tag1Item.mField);
    EXPECT_EQ(Type::STRING, tag1Item.mValue.getType());
    EXPECT_EQ(tag1, tag1Item.mValue.str_value);

    // Check second attribution nodes
    const FieldValue& uid2Item = values[2];
    expectedField = getField(100, {1, 2, 1}, 2, {true, true, false});
    EXPECT_EQ(expectedField, uid2Item.mField);
    EXPECT_EQ(Type::INT, uid2Item.mValue.getType());
    EXPECT_EQ(1002, uid2Item.mValue.int_value);

    const FieldValue& tag2Item = values[3];
    expectedField = getField(100, {1, 2, 2}, 2, {true, true, true});
    EXPECT_EQ(expectedField, tag2Item.mField);
    EXPECT_EQ(Type::STRING, tag2Item.mValue.getType());
    EXPECT_EQ(tag2, tag2Item.mValue.str_value);

    stats_event_release(event);
}

#else // NEW_ENCODING_SCHEME

TEST(LogEventTest, TestLogParsing) {
    LogEvent event1(1, 2000);

    std::vector<AttributionNodeInternal> nodes;

    AttributionNodeInternal node1;
    node1.set_uid(1000);
    node1.set_tag("tag1");
    nodes.push_back(node1);

    AttributionNodeInternal node2;
    node2.set_uid(2000);
    node2.set_tag("tag2");
    nodes.push_back(node2);

    event1.write(nodes);
    event1.write("hello");
    event1.write((int32_t)10);
    event1.write((int64_t)20);
    event1.write((float)1.1);
    event1.init();

    const auto& items = event1.getValues();
    EXPECT_EQ((size_t)8, items.size());
    EXPECT_EQ(1, event1.GetTagId());

    const FieldValue& item0 = event1.getValues()[0];
    EXPECT_EQ(0x2010101, item0.mField.getField());
    EXPECT_EQ(Type::INT, item0.mValue.getType());
    EXPECT_EQ(1000, item0.mValue.int_value);

    const FieldValue& item1 = event1.getValues()[1];
    EXPECT_EQ(0x2010182, item1.mField.getField());
    EXPECT_EQ(Type::STRING, item1.mValue.getType());
    EXPECT_EQ("tag1", item1.mValue.str_value);

    const FieldValue& item2 = event1.getValues()[2];
    EXPECT_EQ(0x2018201, item2.mField.getField());
    EXPECT_EQ(Type::INT, item2.mValue.getType());
    EXPECT_EQ(2000, item2.mValue.int_value);

    const FieldValue& item3 = event1.getValues()[3];
    EXPECT_EQ(0x2018282, item3.mField.getField());
    EXPECT_EQ(Type::STRING, item3.mValue.getType());
    EXPECT_EQ("tag2", item3.mValue.str_value);

    const FieldValue& item4 = event1.getValues()[4];
    EXPECT_EQ(0x20000, item4.mField.getField());
    EXPECT_EQ(Type::STRING, item4.mValue.getType());
    EXPECT_EQ("hello", item4.mValue.str_value);

    const FieldValue& item5 = event1.getValues()[5];
    EXPECT_EQ(0x30000, item5.mField.getField());
    EXPECT_EQ(Type::INT, item5.mValue.getType());
    EXPECT_EQ(10, item5.mValue.int_value);

    const FieldValue& item6 = event1.getValues()[6];
    EXPECT_EQ(0x40000, item6.mField.getField());
    EXPECT_EQ(Type::LONG, item6.mValue.getType());
    EXPECT_EQ((int64_t)20, item6.mValue.long_value);

    const FieldValue& item7 = event1.getValues()[7];
    EXPECT_EQ(0x50000, item7.mField.getField());
    EXPECT_EQ(Type::FLOAT, item7.mValue.getType());
    EXPECT_EQ((float)1.1, item7.mValue.float_value);
}

TEST(LogEventTest, TestKeyValuePairsAtomParsing) {
    LogEvent event1(83, 2000, 1000);
    std::map<int32_t, int32_t> int_map;
    std::map<int32_t, int64_t> long_map;
    std::map<int32_t, std::string> string_map;
    std::map<int32_t, float> float_map;

    int_map[11] = 123;
    int_map[22] = 345;

    long_map[33] = 678L;
    long_map[44] = 890L;

    string_map[1] = "test2";
    string_map[2] = "test1";

    float_map[111] = 2.2f;
    float_map[222] = 1.1f;

    EXPECT_TRUE(event1.writeKeyValuePairs(0, // Logging side logs 0 uid.
                                          int_map,
                                          long_map,
                                          string_map,
                                          float_map));
    event1.init();

    EXPECT_EQ(83, event1.GetTagId());
    const auto& items = event1.getValues();
    EXPECT_EQ((size_t)17, items.size());

    const FieldValue& item0 = event1.getValues()[0];
    EXPECT_EQ(0x10000, item0.mField.getField());
    EXPECT_EQ(Type::INT, item0.mValue.getType());
    EXPECT_EQ(1000, item0.mValue.int_value);

    const FieldValue& item1 = event1.getValues()[1];
    EXPECT_EQ(0x2010201, item1.mField.getField());
    EXPECT_EQ(Type::INT, item1.mValue.getType());
    EXPECT_EQ(11, item1.mValue.int_value);

    const FieldValue& item2 = event1.getValues()[2];
    EXPECT_EQ(0x2010282, item2.mField.getField());
    EXPECT_EQ(Type::INT, item2.mValue.getType());
    EXPECT_EQ(123, item2.mValue.int_value);

    const FieldValue& item3 = event1.getValues()[3];
    EXPECT_EQ(0x2010301, item3.mField.getField());
    EXPECT_EQ(Type::INT, item3.mValue.getType());
    EXPECT_EQ(22, item3.mValue.int_value);

    const FieldValue& item4 = event1.getValues()[4];
    EXPECT_EQ(0x2010382, item4.mField.getField());
    EXPECT_EQ(Type::INT, item4.mValue.getType());
    EXPECT_EQ(345, item4.mValue.int_value);

    const FieldValue& item5 = event1.getValues()[5];
    EXPECT_EQ(0x2010401, item5.mField.getField());
    EXPECT_EQ(Type::INT, item5.mValue.getType());
    EXPECT_EQ(33, item5.mValue.int_value);

    const FieldValue& item6 = event1.getValues()[6];
    EXPECT_EQ(0x2010483, item6.mField.getField());
    EXPECT_EQ(Type::LONG, item6.mValue.getType());
    EXPECT_EQ(678L, item6.mValue.int_value);

    const FieldValue& item7 = event1.getValues()[7];
    EXPECT_EQ(0x2010501, item7.mField.getField());
    EXPECT_EQ(Type::INT, item7.mValue.getType());
    EXPECT_EQ(44, item7.mValue.int_value);

    const FieldValue& item8 = event1.getValues()[8];
    EXPECT_EQ(0x2010583, item8.mField.getField());
    EXPECT_EQ(Type::LONG, item8.mValue.getType());
    EXPECT_EQ(890L, item8.mValue.int_value);

    const FieldValue& item9 = event1.getValues()[9];
    EXPECT_EQ(0x2010601, item9.mField.getField());
    EXPECT_EQ(Type::INT, item9.mValue.getType());
    EXPECT_EQ(1, item9.mValue.int_value);

    const FieldValue& item10 = event1.getValues()[10];
    EXPECT_EQ(0x2010684, item10.mField.getField());
    EXPECT_EQ(Type::STRING, item10.mValue.getType());
    EXPECT_EQ("test2", item10.mValue.str_value);

    const FieldValue& item11 = event1.getValues()[11];
    EXPECT_EQ(0x2010701, item11.mField.getField());
    EXPECT_EQ(Type::INT, item11.mValue.getType());
    EXPECT_EQ(2, item11.mValue.int_value);

    const FieldValue& item12 = event1.getValues()[12];
    EXPECT_EQ(0x2010784, item12.mField.getField());
    EXPECT_EQ(Type::STRING, item12.mValue.getType());
    EXPECT_EQ("test1", item12.mValue.str_value);

    const FieldValue& item13 = event1.getValues()[13];
    EXPECT_EQ(0x2010801, item13.mField.getField());
    EXPECT_EQ(Type::INT, item13.mValue.getType());
    EXPECT_EQ(111, item13.mValue.int_value);

    const FieldValue& item14 = event1.getValues()[14];
    EXPECT_EQ(0x2010885, item14.mField.getField());
    EXPECT_EQ(Type::FLOAT, item14.mValue.getType());
    EXPECT_EQ(2.2f, item14.mValue.float_value);

    const FieldValue& item15 = event1.getValues()[15];
    EXPECT_EQ(0x2018901, item15.mField.getField());
    EXPECT_EQ(Type::INT, item15.mValue.getType());
    EXPECT_EQ(222, item15.mValue.int_value);

    const FieldValue& item16 = event1.getValues()[16];
    EXPECT_EQ(0x2018985, item16.mField.getField());
    EXPECT_EQ(Type::FLOAT, item16.mValue.getType());
    EXPECT_EQ(1.1f, item16.mValue.float_value);
}

TEST(LogEventTest, TestLogParsing2) {
    LogEvent event1(1, 2000);

    std::vector<AttributionNodeInternal> nodes;

    event1.write("hello");

    // repeated msg can be in the middle
    AttributionNodeInternal node1;
    node1.set_uid(1000);
    node1.set_tag("tag1");
    nodes.push_back(node1);

    AttributionNodeInternal node2;
    node2.set_uid(2000);
    node2.set_tag("tag2");
    nodes.push_back(node2);
    event1.write(nodes);

    event1.write((int32_t)10);
    event1.write((int64_t)20);
    event1.write((float)1.1);
    event1.init();

    const auto& items = event1.getValues();
    EXPECT_EQ((size_t)8, items.size());
    EXPECT_EQ(1, event1.GetTagId());

    const FieldValue& item = event1.getValues()[0];
    EXPECT_EQ(0x00010000, item.mField.getField());
    EXPECT_EQ(Type::STRING, item.mValue.getType());
    EXPECT_EQ("hello", item.mValue.str_value);

    const FieldValue& item0 = event1.getValues()[1];
    EXPECT_EQ(0x2020101, item0.mField.getField());
    EXPECT_EQ(Type::INT, item0.mValue.getType());
    EXPECT_EQ(1000, item0.mValue.int_value);

    const FieldValue& item1 = event1.getValues()[2];
    EXPECT_EQ(0x2020182, item1.mField.getField());
    EXPECT_EQ(Type::STRING, item1.mValue.getType());
    EXPECT_EQ("tag1", item1.mValue.str_value);

    const FieldValue& item2 = event1.getValues()[3];
    EXPECT_EQ(0x2028201, item2.mField.getField());
    EXPECT_EQ(Type::INT, item2.mValue.getType());
    EXPECT_EQ(2000, item2.mValue.int_value);

    const FieldValue& item3 = event1.getValues()[4];
    EXPECT_EQ(0x2028282, item3.mField.getField());
    EXPECT_EQ(Type::STRING, item3.mValue.getType());
    EXPECT_EQ("tag2", item3.mValue.str_value);

    const FieldValue& item5 = event1.getValues()[5];
    EXPECT_EQ(0x30000, item5.mField.getField());
    EXPECT_EQ(Type::INT, item5.mValue.getType());
    EXPECT_EQ(10, item5.mValue.int_value);

    const FieldValue& item6 = event1.getValues()[6];
    EXPECT_EQ(0x40000, item6.mField.getField());
    EXPECT_EQ(Type::LONG, item6.mValue.getType());
    EXPECT_EQ((int64_t)20, item6.mValue.long_value);

    const FieldValue& item7 = event1.getValues()[7];
    EXPECT_EQ(0x50000, item7.mField.getField());
    EXPECT_EQ(Type::FLOAT, item7.mValue.getType());
    EXPECT_EQ((float)1.1, item7.mValue.float_value);
}

TEST(LogEventTest, TestKeyValuePairsEvent) {
    std::map<int32_t, int32_t> int_map;
    std::map<int32_t, int64_t> long_map;
    std::map<int32_t, std::string> string_map;
    std::map<int32_t, float> float_map;

    int_map[11] = 123;
    int_map[22] = 345;

    long_map[33] = 678L;
    long_map[44] = 890L;

    string_map[1] = "test2";
    string_map[2] = "test1";

    float_map[111] = 2.2f;
    float_map[222] = 1.1f;

    LogEvent event1(83, 2000, 2001, 10001, int_map, long_map, string_map, float_map);
    event1.init();

    EXPECT_EQ(83, event1.GetTagId());
    EXPECT_EQ((int64_t)2000, event1.GetLogdTimestampNs());
    EXPECT_EQ((int64_t)2001, event1.GetElapsedTimestampNs());
    EXPECT_EQ((int64_t)10001, event1.GetUid());

    const auto& items = event1.getValues();
    EXPECT_EQ((size_t)17, items.size());

    const FieldValue& item0 = event1.getValues()[0];
    EXPECT_EQ(0x00010000, item0.mField.getField());
    EXPECT_EQ(Type::INT, item0.mValue.getType());
    EXPECT_EQ(10001, item0.mValue.int_value);

    const FieldValue& item1 = event1.getValues()[1];
    EXPECT_EQ(0x2020101, item1.mField.getField());
    EXPECT_EQ(Type::INT, item1.mValue.getType());
    EXPECT_EQ(11, item1.mValue.int_value);

    const FieldValue& item2 = event1.getValues()[2];
    EXPECT_EQ(0x2020182, item2.mField.getField());
    EXPECT_EQ(Type::INT, item2.mValue.getType());
    EXPECT_EQ(123, item2.mValue.int_value);

    const FieldValue& item3 = event1.getValues()[3];
    EXPECT_EQ(0x2020201, item3.mField.getField());
    EXPECT_EQ(Type::INT, item3.mValue.getType());
    EXPECT_EQ(22, item3.mValue.int_value);

    const FieldValue& item4 = event1.getValues()[4];
    EXPECT_EQ(0x2020282, item4.mField.getField());
    EXPECT_EQ(Type::INT, item4.mValue.getType());
    EXPECT_EQ(345, item4.mValue.int_value);

    const FieldValue& item5 = event1.getValues()[5];
    EXPECT_EQ(0x2020301, item5.mField.getField());
    EXPECT_EQ(Type::INT, item5.mValue.getType());
    EXPECT_EQ(33, item5.mValue.int_value);

    const FieldValue& item6 = event1.getValues()[6];
    EXPECT_EQ(0x2020383, item6.mField.getField());
    EXPECT_EQ(Type::LONG, item6.mValue.getType());
    EXPECT_EQ(678L, item6.mValue.long_value);

    const FieldValue& item7 = event1.getValues()[7];
    EXPECT_EQ(0x2020401, item7.mField.getField());
    EXPECT_EQ(Type::INT, item7.mValue.getType());
    EXPECT_EQ(44, item7.mValue.int_value);

    const FieldValue& item8 = event1.getValues()[8];
    EXPECT_EQ(0x2020483, item8.mField.getField());
    EXPECT_EQ(Type::LONG, item8.mValue.getType());
    EXPECT_EQ(890L, item8.mValue.long_value);

    const FieldValue& item9 = event1.getValues()[9];
    EXPECT_EQ(0x2020501, item9.mField.getField());
    EXPECT_EQ(Type::INT, item9.mValue.getType());
    EXPECT_EQ(1, item9.mValue.int_value);

    const FieldValue& item10 = event1.getValues()[10];
    EXPECT_EQ(0x2020584, item10.mField.getField());
    EXPECT_EQ(Type::STRING, item10.mValue.getType());
    EXPECT_EQ("test2", item10.mValue.str_value);

    const FieldValue& item11 = event1.getValues()[11];
    EXPECT_EQ(0x2020601, item11.mField.getField());
    EXPECT_EQ(Type::INT, item11.mValue.getType());
    EXPECT_EQ(2, item11.mValue.int_value);

    const FieldValue& item12 = event1.getValues()[12];
    EXPECT_EQ(0x2020684, item12.mField.getField());
    EXPECT_EQ(Type::STRING, item12.mValue.getType());
    EXPECT_EQ("test1", item12.mValue.str_value);

    const FieldValue& item13 = event1.getValues()[13];
    EXPECT_EQ(0x2020701, item13.mField.getField());
    EXPECT_EQ(Type::INT, item13.mValue.getType());
    EXPECT_EQ(111, item13.mValue.int_value);

    const FieldValue& item14 = event1.getValues()[14];
    EXPECT_EQ(0x2020785, item14.mField.getField());
    EXPECT_EQ(Type::FLOAT, item14.mValue.getType());
    EXPECT_EQ(2.2f, item14.mValue.float_value);

    const FieldValue& item15 = event1.getValues()[15];
    EXPECT_EQ(0x2028801, item15.mField.getField());
    EXPECT_EQ(Type::INT, item15.mValue.getType());
    EXPECT_EQ(222, item15.mValue.int_value);

    const FieldValue& item16 = event1.getValues()[16];
    EXPECT_EQ(0x2028885, item16.mField.getField());
    EXPECT_EQ(Type::FLOAT, item16.mValue.getType());
    EXPECT_EQ(1.1f, item16.mValue.float_value);
}

TEST(LogEventTest, TestBinaryFieldAtom) {
    Atom launcherAtom;
    auto launcher_event = launcherAtom.mutable_launcher_event();
    launcher_event->set_action(stats::launcher::LauncherAction::LONGPRESS);
    launcher_event->set_src_state(stats::launcher::LauncherState::OVERVIEW);
    launcher_event->set_dst_state(stats::launcher::LauncherState::ALLAPPS);

    auto extension = launcher_event->mutable_extension();

    auto src_target = extension->add_src_target();
    src_target->set_type(stats::launcher::LauncherTarget_Type_ITEM_TYPE);
    src_target->set_item(stats::launcher::LauncherTarget_Item_FOLDER_ICON);

    auto dst_target = extension->add_dst_target();
    dst_target->set_type(stats::launcher::LauncherTarget_Type_ITEM_TYPE);
    dst_target->set_item(stats::launcher::LauncherTarget_Item_WIDGET);

    string extension_str;
    extension->SerializeToString(&extension_str);

    LogEvent event1(Atom::kLauncherEventFieldNumber, 1000);

    event1.write((int32_t)stats::launcher::LauncherAction::LONGPRESS);
    event1.write((int32_t)stats::launcher::LauncherState::OVERVIEW);
    event1.write((int64_t)stats::launcher::LauncherState::ALLAPPS);
    event1.writeBytes(extension_str);
    event1.init();

    ProtoOutputStream proto;
    event1.ToProto(proto);

    std::vector<uint8_t> outData;
    outData.resize(proto.size());
    size_t pos = 0;
    sp<ProtoReader> reader = proto.data();
    while (reader->readBuffer() != NULL) {
        size_t toRead = reader->currentToRead();
        std::memcpy(&(outData[pos]), reader->readBuffer(), toRead);
        pos += toRead;
        reader->move(toRead);
    }

    std::string result_str(outData.begin(), outData.end());
    std::string orig_str;
    launcherAtom.SerializeToString(&orig_str);

    EXPECT_EQ(orig_str, result_str);
}

TEST(LogEventTest, TestBinaryFieldAtom_empty) {
    Atom launcherAtom;
    auto launcher_event = launcherAtom.mutable_launcher_event();
    launcher_event->set_action(stats::launcher::LauncherAction::LONGPRESS);
    launcher_event->set_src_state(stats::launcher::LauncherState::OVERVIEW);
    launcher_event->set_dst_state(stats::launcher::LauncherState::ALLAPPS);

    // empty string.
    string extension_str;

    LogEvent event1(Atom::kLauncherEventFieldNumber, 1000);

    event1.write((int32_t)stats::launcher::LauncherAction::LONGPRESS);
    event1.write((int32_t)stats::launcher::LauncherState::OVERVIEW);
    event1.write((int64_t)stats::launcher::LauncherState::ALLAPPS);
    event1.writeBytes(extension_str);
    event1.init();

    ProtoOutputStream proto;
    event1.ToProto(proto);

    std::vector<uint8_t> outData;
    outData.resize(proto.size());
    size_t pos = 0;
    sp<ProtoReader> reader = proto.data();
    while (reader->readBuffer() != NULL) {
        size_t toRead = reader->currentToRead();
        std::memcpy(&(outData[pos]), reader->readBuffer(), toRead);
        pos += toRead;
        reader->move(toRead);
    }

    std::string result_str(outData.begin(), outData.end());
    std::string orig_str;
    launcherAtom.SerializeToString(&orig_str);

    EXPECT_EQ(orig_str, result_str);
}

TEST(LogEventTest, TestWriteExperimentIdsToProto) {
    std::vector<int64_t> expIds;
    expIds.push_back(5038);
    std::vector<uint8_t> proto;

    writeExperimentIdsToProto(expIds, &proto);

    EXPECT_EQ(proto.size(), 3);
    // Proto wire format for field ID 1, varint
    EXPECT_EQ(proto[0], 0x08);
    // varint of 5038, 2 bytes long
    EXPECT_EQ(proto[1], 0xae);
    EXPECT_EQ(proto[2], 0x27);
}
#endif // NEW_ENCODING_SCHEME


}  // namespace statsd
}  // namespace os
}  // namespace android
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif