blob: bab020b873a776a9c2cbd7a574ded44fb6cebefa [file] [log] [blame]
/*
* Copyright 2019 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 "test/network/cross_traffic.h"
#include <atomic>
#include <memory>
#include <utility>
#include <vector>
#include "absl/memory/memory.h"
#include "api/test/simulated_network.h"
#include "call/simulated_network.h"
#include "rtc_base/event.h"
#include "rtc_base/logging.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace test {
namespace {
class CountingReceiver : public EmulatedNetworkReceiverInterface {
public:
void OnPacketReceived(EmulatedIpPacket packet) override {
packets_count_++;
total_packets_size_ += packet.size();
}
std::atomic<int> packets_count_{0};
std::atomic<uint64_t> total_packets_size_{0};
};
struct TrafficCounterFixture {
SimulatedClock clock{0};
CountingReceiver counter;
TaskQueueForTest task_queue_;
EmulatedEndpoint endpoint{/*id=*/1, rtc::IPAddress(), /*is_enabled=*/true,
&task_queue_, &clock};
};
} // namespace
TEST(CrossTrafficTest, TriggerPacketBurst) {
TrafficCounterFixture fixture;
TrafficRoute traffic(&fixture.clock, &fixture.counter, &fixture.endpoint);
traffic.TriggerPacketBurst(100, 1000);
EXPECT_EQ(fixture.counter.packets_count_, 100);
EXPECT_EQ(fixture.counter.total_packets_size_, 100 * 1000ul);
}
TEST(CrossTrafficTest, PulsedPeaksCrossTraffic) {
TrafficCounterFixture fixture;
TrafficRoute traffic(&fixture.clock, &fixture.counter, &fixture.endpoint);
PulsedPeaksConfig config;
config.peak_rate = DataRate::kbps(1000);
config.min_packet_size = DataSize::bytes(1);
config.min_packet_interval = TimeDelta::ms(25);
config.send_duration = TimeDelta::ms(500);
config.hold_duration = TimeDelta::ms(250);
PulsedPeaksCrossTraffic pulsed_peaks(config, &traffic);
const auto kRunTime = TimeDelta::seconds(1);
while (fixture.clock.TimeInMilliseconds() < kRunTime.ms()) {
pulsed_peaks.Process(Timestamp::ms(fixture.clock.TimeInMilliseconds()));
fixture.clock.AdvanceTimeMilliseconds(1);
}
RTC_LOG(INFO) << fixture.counter.packets_count_ << " packets; "
<< fixture.counter.total_packets_size_ << " bytes";
// Using 50% duty cycle.
const auto kExpectedDataSent = kRunTime * config.peak_rate * 0.5;
EXPECT_NEAR(fixture.counter.total_packets_size_, kExpectedDataSent.bytes(),
kExpectedDataSent.bytes() * 0.1);
}
TEST(CrossTrafficTest, RandomWalkCrossTraffic) {
TrafficCounterFixture fixture;
TrafficRoute traffic(&fixture.clock, &fixture.counter, &fixture.endpoint);
RandomWalkConfig config;
config.peak_rate = DataRate::kbps(1000);
config.min_packet_size = DataSize::bytes(1);
config.min_packet_interval = TimeDelta::ms(25);
config.update_interval = TimeDelta::ms(500);
config.variance = 0.0;
config.bias = 1.0;
RandomWalkCrossTraffic random_walk(config, &traffic);
const auto kRunTime = TimeDelta::seconds(1);
while (fixture.clock.TimeInMilliseconds() < kRunTime.ms()) {
random_walk.Process(Timestamp::ms(fixture.clock.TimeInMilliseconds()));
fixture.clock.AdvanceTimeMilliseconds(1);
}
RTC_LOG(INFO) << fixture.counter.packets_count_ << " packets; "
<< fixture.counter.total_packets_size_ << " bytes";
// Sending at peak rate since bias = 1.
const auto kExpectedDataSent = kRunTime * config.peak_rate;
EXPECT_NEAR(fixture.counter.total_packets_size_, kExpectedDataSent.bytes(),
kExpectedDataSent.bytes() * 0.1);
}
} // namespace test
} // namespace webrtc