blob: 249491effdff49a7a92ada1a0e9be60ee7fba220 [file] [log] [blame]
/*
* Copyright 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "api/stats/rtc_stats.h"
#include <cmath>
#include <cstdint>
#include <cstring>
#include <iostream>
#include "rtc_base/checks.h"
#include "rtc_base/strings/json.h"
#include "stats/test/rtc_test_stats.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
// JSON stores numbers as floating point numbers with 53 significant bits, which
// amounts to about 15.95 decimal digits. Thus, when comparing large numbers
// processed by JSON, that's all the precision we should expect.
const double JSON_EPSILON = 1e-15;
// We do this since Google Test doesn't support relative error.
// This is computed as follows:
// If |a - b| / |a| < EPS, then |a - b| < |a| * EPS, so |a| * EPS is the
// maximum expected error.
double GetExpectedError(const double expected_value) {
return JSON_EPSILON * fabs(expected_value);
}
} // namespace
class RTCChildStats : public RTCStats {
public:
WEBRTC_RTCSTATS_DECL();
RTCChildStats(const std::string& id, Timestamp timestamp)
: RTCStats(id, timestamp), child_int("childInt") {}
RTCStatsMember<int32_t> child_int;
};
WEBRTC_RTCSTATS_IMPL(RTCChildStats, RTCStats, "child-stats", &child_int)
class RTCGrandChildStats : public RTCChildStats {
public:
WEBRTC_RTCSTATS_DECL();
RTCGrandChildStats(const std::string& id, Timestamp timestamp)
: RTCChildStats(id, timestamp), grandchild_int("grandchildInt") {}
RTCStatsMember<int32_t> grandchild_int;
};
WEBRTC_RTCSTATS_IMPL(RTCGrandChildStats,
RTCChildStats,
"grandchild-stats",
&grandchild_int)
TEST(RTCStatsTest, RTCStatsAndMembers) {
RTCTestStats stats("testId", Timestamp::Micros(42));
EXPECT_EQ(stats.id(), "testId");
EXPECT_EQ(stats.timestamp().us(), static_cast<int64_t>(42));
std::vector<const RTCStatsMemberInterface*> members = stats.Members();
EXPECT_EQ(members.size(), static_cast<size_t>(16));
for (const RTCStatsMemberInterface* member : members) {
EXPECT_FALSE(member->is_defined());
}
stats.m_bool = true;
stats.m_int32 = 123;
stats.m_uint32 = 123;
stats.m_int64 = 123;
stats.m_uint64 = 123;
stats.m_double = 123.0;
stats.m_string = std::string("123");
std::vector<bool> sequence_bool;
sequence_bool.push_back(true);
std::vector<int32_t> sequence_int32;
sequence_int32.push_back(static_cast<int32_t>(1));
std::vector<uint32_t> sequence_uint32;
sequence_uint32.push_back(static_cast<uint32_t>(2));
std::vector<int64_t> sequence_int64;
sequence_int64.push_back(static_cast<int64_t>(3));
std::vector<uint64_t> sequence_uint64;
sequence_uint64.push_back(static_cast<uint64_t>(4));
std::vector<double> sequence_double;
sequence_double.push_back(5.0);
std::vector<std::string> sequence_string;
sequence_string.push_back(std::string("six"));
std::map<std::string, uint64_t> map_string_uint64{{"seven", 8}};
std::map<std::string, double> map_string_double{{"nine", 10.0}};
stats.m_sequence_bool = sequence_bool;
stats.m_sequence_int32 = sequence_int32;
stats.m_sequence_uint32 = sequence_uint32;
EXPECT_FALSE(stats.m_sequence_int64.is_defined());
stats.m_sequence_int64 = sequence_int64;
stats.m_sequence_uint64 = sequence_uint64;
stats.m_sequence_double = sequence_double;
stats.m_sequence_string = sequence_string;
stats.m_map_string_uint64 = map_string_uint64;
stats.m_map_string_double = map_string_double;
for (const RTCStatsMemberInterface* member : members) {
EXPECT_TRUE(member->is_defined());
}
EXPECT_EQ(*stats.m_bool, true);
EXPECT_EQ(*stats.m_int32, static_cast<int32_t>(123));
EXPECT_EQ(*stats.m_uint32, static_cast<uint32_t>(123));
EXPECT_EQ(*stats.m_int64, static_cast<int64_t>(123));
EXPECT_EQ(*stats.m_uint64, static_cast<uint64_t>(123));
EXPECT_EQ(*stats.m_double, 123.0);
EXPECT_EQ(*stats.m_string, std::string("123"));
EXPECT_EQ(*stats.m_sequence_bool, sequence_bool);
EXPECT_EQ(*stats.m_sequence_int32, sequence_int32);
EXPECT_EQ(*stats.m_sequence_uint32, sequence_uint32);
EXPECT_EQ(*stats.m_sequence_int64, sequence_int64);
EXPECT_EQ(*stats.m_sequence_uint64, sequence_uint64);
EXPECT_EQ(*stats.m_sequence_double, sequence_double);
EXPECT_EQ(*stats.m_sequence_string, sequence_string);
EXPECT_EQ(*stats.m_map_string_uint64, map_string_uint64);
EXPECT_EQ(*stats.m_map_string_double, map_string_double);
int32_t numbers[] = {4, 8, 15, 16, 23, 42};
std::vector<int32_t> numbers_sequence(&numbers[0], &numbers[6]);
stats.m_sequence_int32->clear();
stats.m_sequence_int32->insert(stats.m_sequence_int32->end(),
numbers_sequence.begin(),
numbers_sequence.end());
EXPECT_EQ(*stats.m_sequence_int32, numbers_sequence);
}
TEST(RTCStatsTest, EqualityOperator) {
RTCTestStats empty_stats("testId", Timestamp::Micros(123));
EXPECT_EQ(empty_stats, empty_stats);
RTCTestStats stats_with_all_values = empty_stats;
stats_with_all_values.m_bool = true;
stats_with_all_values.m_int32 = 123;
stats_with_all_values.m_uint32 = 123;
stats_with_all_values.m_int64 = 123;
stats_with_all_values.m_uint64 = 123;
stats_with_all_values.m_double = 123.0;
stats_with_all_values.m_string = "123";
stats_with_all_values.m_sequence_bool = std::vector<bool>();
stats_with_all_values.m_sequence_int32 = std::vector<int32_t>();
stats_with_all_values.m_sequence_uint32 = std::vector<uint32_t>();
stats_with_all_values.m_sequence_int64 = std::vector<int64_t>();
stats_with_all_values.m_sequence_uint64 = std::vector<uint64_t>();
stats_with_all_values.m_sequence_double = std::vector<double>();
stats_with_all_values.m_sequence_string = std::vector<std::string>();
stats_with_all_values.m_map_string_uint64 = std::map<std::string, uint64_t>();
stats_with_all_values.m_map_string_double = std::map<std::string, double>();
EXPECT_NE(stats_with_all_values, empty_stats);
EXPECT_EQ(stats_with_all_values, stats_with_all_values);
EXPECT_NE(stats_with_all_values.m_int32, stats_with_all_values.m_uint32);
RTCTestStats one_member_different[] = {
stats_with_all_values, stats_with_all_values, stats_with_all_values,
stats_with_all_values, stats_with_all_values, stats_with_all_values,
stats_with_all_values, stats_with_all_values, stats_with_all_values,
stats_with_all_values, stats_with_all_values, stats_with_all_values,
stats_with_all_values, stats_with_all_values,
};
for (size_t i = 0; i < 14; ++i) {
EXPECT_EQ(stats_with_all_values, one_member_different[i]);
}
one_member_different[0].m_bool = false;
one_member_different[1].m_int32 = 321;
one_member_different[2].m_uint32 = 321;
one_member_different[3].m_int64 = 321;
one_member_different[4].m_uint64 = 321;
one_member_different[5].m_double = 321.0;
one_member_different[6].m_string = "321";
one_member_different[7].m_sequence_bool->push_back(false);
one_member_different[8].m_sequence_int32->push_back(321);
one_member_different[9].m_sequence_uint32->push_back(321);
one_member_different[10].m_sequence_int64->push_back(321);
one_member_different[11].m_sequence_uint64->push_back(321);
one_member_different[12].m_sequence_double->push_back(321.0);
one_member_different[13].m_sequence_string->push_back("321");
(*one_member_different[13].m_map_string_uint64)["321"] = 321;
(*one_member_different[13].m_map_string_double)["321"] = 321.0;
for (size_t i = 0; i < 14; ++i) {
EXPECT_NE(stats_with_all_values, one_member_different[i]);
}
RTCTestStats empty_stats_different_id("testId2", Timestamp::Micros(123));
EXPECT_NE(empty_stats, empty_stats_different_id);
RTCTestStats empty_stats_different_timestamp("testId",
Timestamp::Micros(321));
EXPECT_EQ(empty_stats, empty_stats_different_timestamp);
RTCChildStats child("childId", Timestamp::Micros(42));
RTCGrandChildStats grandchild("grandchildId", Timestamp::Micros(42));
EXPECT_NE(child, grandchild);
RTCChildStats stats_with_defined_member("leId", Timestamp::Micros(0));
stats_with_defined_member.child_int = 0;
RTCChildStats stats_with_undefined_member("leId", Timestamp::Micros(0));
EXPECT_NE(stats_with_defined_member, stats_with_undefined_member);
EXPECT_NE(stats_with_undefined_member, stats_with_defined_member);
}
TEST(RTCStatsTest, RTCStatsGrandChild) {
RTCGrandChildStats stats("grandchild", Timestamp::Micros(0.0));
stats.child_int = 1;
stats.grandchild_int = 2;
int32_t sum = 0;
for (const RTCStatsMemberInterface* member : stats.Members()) {
sum += *member->cast_to<const RTCStatsMember<int32_t>>();
}
EXPECT_EQ(sum, static_cast<int32_t>(3));
std::unique_ptr<RTCStats> copy_ptr = stats.copy();
const RTCGrandChildStats& copy = copy_ptr->cast_to<RTCGrandChildStats>();
EXPECT_EQ(*copy.child_int, *stats.child_int);
EXPECT_EQ(*copy.grandchild_int, *stats.grandchild_int);
}
TEST(RTCStatsTest, RTCStatsPrintsValidJson) {
std::string id = "statsId";
int timestamp = 42;
bool m_bool = true;
int m_int32 = 123;
int64_t m_int64 = 1234567890123456499L;
double m_double = 123.4567890123456499;
std::string m_string = "123";
std::vector<bool> sequence_bool;
std::vector<int32_t> sequence_int32;
sequence_int32.push_back(static_cast<int32_t>(1));
std::vector<int64_t> sequence_int64;
sequence_int64.push_back(static_cast<int64_t>(-1234567890123456499L));
sequence_int64.push_back(static_cast<int64_t>(1));
sequence_int64.push_back(static_cast<int64_t>(1234567890123456499L));
std::vector<double> sequence_double;
sequence_double.push_back(123.4567890123456499);
sequence_double.push_back(1234567890123.456499);
std::vector<std::string> sequence_string;
sequence_string.push_back(std::string("four"));
std::map<std::string, uint64_t> map_string_uint64{
{"long", static_cast<uint64_t>(1234567890123456499L)}};
std::map<std::string, double> map_string_double{
{"three", 123.4567890123456499}, {"thirteen", 123.4567890123456499}};
RTCTestStats stats(id, Timestamp::Micros(timestamp));
stats.m_bool = m_bool;
stats.m_int32 = m_int32;
stats.m_int64 = m_int64;
stats.m_double = m_double;
stats.m_string = m_string;
stats.m_sequence_bool = sequence_bool;
stats.m_sequence_int32 = sequence_int32;
stats.m_sequence_int64 = sequence_int64;
stats.m_sequence_double = sequence_double;
stats.m_sequence_string = sequence_string;
stats.m_map_string_uint64 = map_string_uint64;
stats.m_map_string_double = map_string_double;
std::string json_stats = stats.ToJson();
Json::CharReaderBuilder builder;
Json::Value json_output;
std::unique_ptr<Json::CharReader> json_reader(builder.newCharReader());
EXPECT_TRUE(json_reader->parse(json_stats.c_str(),
json_stats.c_str() + json_stats.size(),
&json_output, nullptr));
EXPECT_TRUE(rtc::GetStringFromJsonObject(json_output, "id", &id));
EXPECT_TRUE(rtc::GetIntFromJsonObject(json_output, "timestamp", &timestamp));
EXPECT_TRUE(rtc::GetBoolFromJsonObject(json_output, "mBool", &m_bool));
EXPECT_TRUE(rtc::GetIntFromJsonObject(json_output, "mInt32", &m_int32));
EXPECT_TRUE(rtc::GetDoubleFromJsonObject(json_output, "mDouble", &m_double));
EXPECT_TRUE(rtc::GetStringFromJsonObject(json_output, "mString", &m_string));
Json::Value json_array;
EXPECT_TRUE(
rtc::GetValueFromJsonObject(json_output, "mSequenceBool", &json_array));
EXPECT_TRUE(rtc::JsonArrayToBoolVector(json_array, &sequence_bool));
EXPECT_TRUE(
rtc::GetValueFromJsonObject(json_output, "mSequenceInt32", &json_array));
EXPECT_TRUE(rtc::JsonArrayToIntVector(json_array, &sequence_int32));
EXPECT_TRUE(
rtc::GetValueFromJsonObject(json_output, "mSequenceDouble", &json_array));
EXPECT_TRUE(rtc::JsonArrayToDoubleVector(json_array, &sequence_double));
EXPECT_TRUE(
rtc::GetValueFromJsonObject(json_output, "mSequenceString", &json_array));
EXPECT_TRUE(rtc::JsonArrayToStringVector(json_array, &sequence_string));
Json::Value json_map;
EXPECT_TRUE(
rtc::GetValueFromJsonObject(json_output, "mMapStringDouble", &json_map));
for (const auto& entry : map_string_double) {
double double_output = 0.0;
EXPECT_TRUE(
rtc::GetDoubleFromJsonObject(json_map, entry.first, &double_output));
EXPECT_NEAR(double_output, entry.second, GetExpectedError(entry.second));
}
EXPECT_EQ(id, stats.id());
EXPECT_EQ(timestamp, stats.timestamp().us());
EXPECT_EQ(m_bool, *stats.m_bool);
EXPECT_EQ(m_int32, *stats.m_int32);
EXPECT_EQ(m_string, *stats.m_string);
EXPECT_EQ(sequence_bool, *stats.m_sequence_bool);
EXPECT_EQ(sequence_int32, *stats.m_sequence_int32);
EXPECT_EQ(sequence_string, *stats.m_sequence_string);
EXPECT_EQ(map_string_double, *stats.m_map_string_double);
EXPECT_NEAR(m_double, *stats.m_double, GetExpectedError(*stats.m_double));
EXPECT_EQ(sequence_double.size(), stats.m_sequence_double->size());
for (size_t i = 0; i < stats.m_sequence_double->size(); ++i) {
EXPECT_NEAR(sequence_double[i], stats.m_sequence_double->at(i),
GetExpectedError(stats.m_sequence_double->at(i)));
}
EXPECT_EQ(map_string_double.size(), stats.m_map_string_double->size());
for (const auto& entry : map_string_double) {
auto it = stats.m_map_string_double->find(entry.first);
EXPECT_NE(it, stats.m_map_string_double->end());
EXPECT_NEAR(entry.second, it->second, GetExpectedError(it->second));
}
// We read mInt64 as double since JSON stores all numbers as doubles, so there
// is not enough precision to represent large numbers.
double m_int64_as_double;
std::vector<double> sequence_int64_as_double;
EXPECT_TRUE(
rtc::GetDoubleFromJsonObject(json_output, "mInt64", &m_int64_as_double));
EXPECT_TRUE(
rtc::GetValueFromJsonObject(json_output, "mSequenceInt64", &json_array));
EXPECT_TRUE(
rtc::JsonArrayToDoubleVector(json_array, &sequence_int64_as_double));
double stats_m_int64_as_double = static_cast<double>(*stats.m_int64);
EXPECT_NEAR(m_int64_as_double, stats_m_int64_as_double,
GetExpectedError(stats_m_int64_as_double));
EXPECT_EQ(sequence_int64_as_double.size(), stats.m_sequence_int64->size());
for (size_t i = 0; i < stats.m_sequence_int64->size(); ++i) {
const double stats_value_as_double =
static_cast<double>((*stats.m_sequence_int64)[i]);
EXPECT_NEAR(sequence_int64_as_double[i], stats_value_as_double,
GetExpectedError(stats_value_as_double));
}
// Similarly, read Uint64 as double
EXPECT_TRUE(
rtc::GetValueFromJsonObject(json_output, "mMapStringUint64", &json_map));
for (const auto& entry : map_string_uint64) {
const double stats_value_as_double =
static_cast<double>((*stats.m_map_string_uint64)[entry.first]);
double double_output = 0.0;
EXPECT_TRUE(
rtc::GetDoubleFromJsonObject(json_map, entry.first, &double_output));
EXPECT_NEAR(double_output, stats_value_as_double,
GetExpectedError(stats_value_as_double));
}
// Neither stats.m_uint32 nor stats.m_uint64 are defined, so "mUint64" and
// "mUint32" should not be part of the generated JSON object.
int m_uint32;
int m_uint64;
EXPECT_FALSE(stats.m_uint32.is_defined());
EXPECT_FALSE(stats.m_uint64.is_defined());
EXPECT_FALSE(rtc::GetIntFromJsonObject(json_output, "mUint32", &m_uint32));
EXPECT_FALSE(rtc::GetIntFromJsonObject(json_output, "mUint64", &m_uint64));
std::cout << stats.ToJson() << std::endl;
}
TEST(RTCStatsTest, IsSequence) {
RTCTestStats stats("statsId", Timestamp::Micros(42));
EXPECT_FALSE(stats.m_bool.is_sequence());
EXPECT_FALSE(stats.m_int32.is_sequence());
EXPECT_FALSE(stats.m_uint32.is_sequence());
EXPECT_FALSE(stats.m_int64.is_sequence());
EXPECT_FALSE(stats.m_uint64.is_sequence());
EXPECT_FALSE(stats.m_double.is_sequence());
EXPECT_FALSE(stats.m_string.is_sequence());
EXPECT_TRUE(stats.m_sequence_bool.is_sequence());
EXPECT_TRUE(stats.m_sequence_int32.is_sequence());
EXPECT_TRUE(stats.m_sequence_uint32.is_sequence());
EXPECT_TRUE(stats.m_sequence_int64.is_sequence());
EXPECT_TRUE(stats.m_sequence_uint64.is_sequence());
EXPECT_TRUE(stats.m_sequence_double.is_sequence());
EXPECT_TRUE(stats.m_sequence_string.is_sequence());
EXPECT_FALSE(stats.m_map_string_uint64.is_sequence());
EXPECT_FALSE(stats.m_map_string_double.is_sequence());
}
TEST(RTCStatsTest, Type) {
RTCTestStats stats("statsId", Timestamp::Micros(42));
EXPECT_EQ(RTCStatsMemberInterface::kBool, stats.m_bool.type());
EXPECT_EQ(RTCStatsMemberInterface::kInt32, stats.m_int32.type());
EXPECT_EQ(RTCStatsMemberInterface::kUint32, stats.m_uint32.type());
EXPECT_EQ(RTCStatsMemberInterface::kInt64, stats.m_int64.type());
EXPECT_EQ(RTCStatsMemberInterface::kUint64, stats.m_uint64.type());
EXPECT_EQ(RTCStatsMemberInterface::kDouble, stats.m_double.type());
EXPECT_EQ(RTCStatsMemberInterface::kString, stats.m_string.type());
EXPECT_EQ(RTCStatsMemberInterface::kSequenceBool,
stats.m_sequence_bool.type());
EXPECT_EQ(RTCStatsMemberInterface::kSequenceInt32,
stats.m_sequence_int32.type());
EXPECT_EQ(RTCStatsMemberInterface::kSequenceUint32,
stats.m_sequence_uint32.type());
EXPECT_EQ(RTCStatsMemberInterface::kSequenceInt64,
stats.m_sequence_int64.type());
EXPECT_EQ(RTCStatsMemberInterface::kSequenceUint64,
stats.m_sequence_uint64.type());
EXPECT_EQ(RTCStatsMemberInterface::kSequenceDouble,
stats.m_sequence_double.type());
EXPECT_EQ(RTCStatsMemberInterface::kSequenceString,
stats.m_sequence_string.type());
EXPECT_EQ(RTCStatsMemberInterface::kMapStringUint64,
stats.m_map_string_uint64.type());
EXPECT_EQ(RTCStatsMemberInterface::kMapStringDouble,
stats.m_map_string_double.type());
}
TEST(RTCStatsTest, IsString) {
RTCTestStats stats("statsId", Timestamp::Micros(42));
EXPECT_TRUE(stats.m_string.is_string());
EXPECT_FALSE(stats.m_bool.is_string());
EXPECT_FALSE(stats.m_int32.is_string());
EXPECT_FALSE(stats.m_uint32.is_string());
EXPECT_FALSE(stats.m_int64.is_string());
EXPECT_FALSE(stats.m_uint64.is_string());
EXPECT_FALSE(stats.m_double.is_string());
EXPECT_FALSE(stats.m_sequence_bool.is_string());
EXPECT_FALSE(stats.m_sequence_int32.is_string());
EXPECT_FALSE(stats.m_sequence_uint32.is_string());
EXPECT_FALSE(stats.m_sequence_int64.is_string());
EXPECT_FALSE(stats.m_sequence_uint64.is_string());
EXPECT_FALSE(stats.m_sequence_double.is_string());
EXPECT_FALSE(stats.m_sequence_string.is_string());
EXPECT_FALSE(stats.m_map_string_uint64.is_string());
EXPECT_FALSE(stats.m_map_string_double.is_string());
}
TEST(RTCStatsTest, ValueToString) {
RTCTestStats stats("statsId", Timestamp::Micros(42));
stats.m_bool = true;
EXPECT_EQ("true", stats.m_bool.ValueToString());
stats.m_string = "foo";
EXPECT_EQ("foo", stats.m_string.ValueToString());
stats.m_int32 = -32;
EXPECT_EQ("-32", stats.m_int32.ValueToString());
stats.m_uint32 = 32;
EXPECT_EQ("32", stats.m_uint32.ValueToString());
stats.m_int64 = -64;
EXPECT_EQ("-64", stats.m_int64.ValueToString());
stats.m_uint64 = 64;
EXPECT_EQ("64", stats.m_uint64.ValueToString());
stats.m_double = 0.5;
EXPECT_EQ("0.5", stats.m_double.ValueToString());
stats.m_sequence_bool = {true, false};
EXPECT_EQ("[true,false]", stats.m_sequence_bool.ValueToString());
stats.m_sequence_int32 = {-32, 32};
EXPECT_EQ("[-32,32]", stats.m_sequence_int32.ValueToString());
stats.m_sequence_uint32 = {64, 32};
EXPECT_EQ("[64,32]", stats.m_sequence_uint32.ValueToString());
stats.m_sequence_int64 = {-64, 32};
EXPECT_EQ("[-64,32]", stats.m_sequence_int64.ValueToString());
stats.m_sequence_uint64 = {16, 32};
EXPECT_EQ("[16,32]", stats.m_sequence_uint64.ValueToString());
stats.m_sequence_double = {0.5, 0.25};
EXPECT_EQ("[0.5,0.25]", stats.m_sequence_double.ValueToString());
stats.m_sequence_string = {"foo", "bar"};
EXPECT_EQ("[\"foo\",\"bar\"]", stats.m_sequence_string.ValueToString());
stats.m_map_string_uint64 = std::map<std::string, uint64_t>();
stats.m_map_string_uint64->emplace("foo", 32);
stats.m_map_string_uint64->emplace("bar", 64);
EXPECT_EQ("{bar:64,foo:32}", stats.m_map_string_uint64.ValueToString());
stats.m_map_string_double = std::map<std::string, double>();
stats.m_map_string_double->emplace("foo", 0.5);
stats.m_map_string_double->emplace("bar", 0.25);
EXPECT_EQ("{bar:0.25,foo:0.5}", stats.m_map_string_double.ValueToString());
}
// Death tests.
// Disabled on Android because death tests misbehave on Android, see
// base/test/gtest_util.h.
#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
TEST(RTCStatsDeathTest, ValueOfUndefinedMember) {
RTCTestStats stats("testId", Timestamp::Micros(0));
EXPECT_FALSE(stats.m_int32.is_defined());
EXPECT_DEATH(*stats.m_int32, "");
}
TEST(RTCStatsDeathTest, InvalidCasting) {
RTCGrandChildStats stats("grandchild", Timestamp::Micros(0.0));
EXPECT_DEATH(stats.cast_to<RTCChildStats>(), "");
}
#endif // RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
} // namespace webrtc