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webrtc/stats/rtc_stats_unittest.cc
Henrik Boström ac58a334f7 [Stats] Migrate from the RTCStatsMember type alias to absl::optional. 
With this CL, the only usage of RTCStatsMember within WebRTC is the
actual type alias declaration. It's not referenced anywhere anymore.

This allows us to deleting the type alias, but let's do that in a
standalone CL in case it gets reverted.

Bug: webrtc:15164
Change-Id: I766d07abb62b5ddd524859b8ed749394fc439e52
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/335621
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41612}
2024-01-25 21:56:08 +00:00

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/*
* 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 "absl/types/optional.h"
#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) {}
absl::optional<int32_t> child_int;
};
WEBRTC_RTCSTATS_IMPL(RTCChildStats,
RTCStats,
"child-stats",
AttributeInit("childInt", &child_int))
class RTCGrandChildStats : public RTCChildStats {
public:
WEBRTC_RTCSTATS_DECL();
RTCGrandChildStats(const std::string& id, Timestamp timestamp)
: RTCChildStats(id, timestamp) {}
absl::optional<int32_t> grandchild_int;
};
WEBRTC_RTCSTATS_IMPL(RTCGrandChildStats,
RTCChildStats,
"grandchild-stats",
AttributeInit("grandchildInt", &grandchild_int))
TEST(RTCStatsTest, RTCStatsAndAttributes) {
RTCTestStats stats("testId", Timestamp::Micros(42));
EXPECT_EQ(stats.id(), "testId");
EXPECT_EQ(stats.timestamp().us(), static_cast<int64_t>(42));
std::vector<Attribute> attributes = stats.Attributes();
EXPECT_EQ(attributes.size(), static_cast<size_t>(16));
for (const auto& attribute : attributes) {
EXPECT_FALSE(attribute.has_value());
}
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.has_value());
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 auto& attribute : attributes) {
EXPECT_TRUE(attribute.has_value());
}
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.GetAttribute(stats_with_all_values.m_int32),
stats_with_all_values.GetAttribute(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 auto& attribute : stats.Attributes()) {
sum += attribute.get<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.has_value());
EXPECT_FALSE(stats.m_uint64.has_value());
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.GetAttribute(stats.m_bool).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_int32).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_uint32).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_int64).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_uint64).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_double).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_string).is_sequence());
EXPECT_TRUE(stats.GetAttribute(stats.m_sequence_bool).is_sequence());
EXPECT_TRUE(stats.GetAttribute(stats.m_sequence_int32).is_sequence());
EXPECT_TRUE(stats.GetAttribute(stats.m_sequence_uint32).is_sequence());
EXPECT_TRUE(stats.GetAttribute(stats.m_sequence_int64).is_sequence());
EXPECT_TRUE(stats.GetAttribute(stats.m_sequence_uint64).is_sequence());
EXPECT_TRUE(stats.GetAttribute(stats.m_sequence_double).is_sequence());
EXPECT_TRUE(stats.GetAttribute(stats.m_sequence_string).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_map_string_uint64).is_sequence());
EXPECT_FALSE(stats.GetAttribute(stats.m_map_string_double).is_sequence());
}
TEST(RTCStatsTest, IsString) {
RTCTestStats stats("statsId", Timestamp::Micros(42));
EXPECT_TRUE(stats.GetAttribute(stats.m_string).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_bool).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_int32).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_uint32).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_int64).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_uint64).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_double).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_sequence_bool).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_sequence_int32).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_sequence_uint32).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_sequence_int64).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_sequence_uint64).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_sequence_double).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_sequence_string).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_map_string_uint64).is_string());
EXPECT_FALSE(stats.GetAttribute(stats.m_map_string_double).is_string());
}
TEST(RTCStatsTest, AttributeToString) {
RTCTestStats stats("statsId", Timestamp::Micros(42));
stats.m_bool = true;
EXPECT_EQ("true", stats.GetAttribute(stats.m_bool).ToString());
stats.m_string = "foo";
EXPECT_EQ("foo", stats.GetAttribute(stats.m_string).ToString());
stats.m_int32 = -32;
EXPECT_EQ("-32", stats.GetAttribute(stats.m_int32).ToString());
stats.m_uint32 = 32;
EXPECT_EQ("32", stats.GetAttribute(stats.m_uint32).ToString());
stats.m_int64 = -64;
EXPECT_EQ("-64", stats.GetAttribute(stats.m_int64).ToString());
stats.m_uint64 = 64;
EXPECT_EQ("64", stats.GetAttribute(stats.m_uint64).ToString());
stats.m_double = 0.5;
EXPECT_EQ("0.5", stats.GetAttribute(stats.m_double).ToString());
stats.m_sequence_bool = {true, false};
EXPECT_EQ("[true,false]",
stats.GetAttribute(stats.m_sequence_bool).ToString());
stats.m_sequence_int32 = {-32, 32};
EXPECT_EQ("[-32,32]", stats.GetAttribute(stats.m_sequence_int32).ToString());
stats.m_sequence_uint32 = {64, 32};
EXPECT_EQ("[64,32]", stats.GetAttribute(stats.m_sequence_uint32).ToString());
stats.m_sequence_int64 = {-64, 32};
EXPECT_EQ("[-64,32]", stats.GetAttribute(stats.m_sequence_int64).ToString());
stats.m_sequence_uint64 = {16, 32};
EXPECT_EQ("[16,32]", stats.GetAttribute(stats.m_sequence_uint64).ToString());
stats.m_sequence_double = {0.5, 0.25};
EXPECT_EQ("[0.5,0.25]",
stats.GetAttribute(stats.m_sequence_double).ToString());
stats.m_sequence_string = {"foo", "bar"};
EXPECT_EQ("[\"foo\",\"bar\"]",
stats.GetAttribute(stats.m_sequence_string).ToString());
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.GetAttribute(stats.m_map_string_uint64).ToString());
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.GetAttribute(stats.m_map_string_double).ToString());
}
// 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.has_value());
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
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