mirror of
https://github.com/facebookincubator/mvfst.git
synced 2025-08-09 20:42:44 +03:00
d5b454a9c0
Summary: Original commit changeset: b83e4a01fc81 Reviewed By: mjoras Differential Revision: D19644828 fbshipit-source-id: 83d5a3454c6f9a8364e970d236cba008aef85fbd
78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
*/
|
|
|
|
#include <quic/congestion_control/CongestionControlFunctions.h>
|
|
|
|
#include <folly/portability/GTest.h>
|
|
#include <quic/QuicConstants.h>
|
|
#include <quic/state/StateData.h>
|
|
|
|
using namespace testing;
|
|
|
|
namespace quic {
|
|
namespace test {
|
|
|
|
class CongestionControlFunctionsTest : public Test {};
|
|
|
|
TEST_F(CongestionControlFunctionsTest, CalculatePacingRate) {
|
|
QuicConnectionStateBase conn(QuicNodeType::Client);
|
|
conn.udpSendPacketLen = 1;
|
|
conn.transportSettings.minBurstPackets = 1;
|
|
conn.transportSettings.pacingTimerTickInterval = 10ms;
|
|
std::chrono::microseconds rtt(1000 * 100);
|
|
auto result =
|
|
calculatePacingRate(conn, 50, conn.transportSettings.minCwndInMss, rtt);
|
|
EXPECT_EQ(10ms, result.interval);
|
|
EXPECT_EQ(5, result.burstSize);
|
|
|
|
conn.transportSettings.pacingTimerTickInterval = 1ms;
|
|
auto result2 =
|
|
calculatePacingRate(conn, 300, conn.transportSettings.minCwndInMss, rtt);
|
|
EXPECT_EQ(1ms, result2.interval);
|
|
EXPECT_EQ(3, result2.burstSize);
|
|
}
|
|
|
|
TEST_F(CongestionControlFunctionsTest, MinPacingRate) {
|
|
QuicConnectionStateBase conn(QuicNodeType::Client);
|
|
conn.udpSendPacketLen = 1;
|
|
conn.transportSettings.pacingTimerTickInterval = 1ms;
|
|
auto result = calculatePacingRate(
|
|
conn, 100, conn.transportSettings.minCwndInMss, 100ms);
|
|
// 100 ms rtt, 1ms tick interval, 100 mss cwnd, 5 mss min burst -> 5 mss every
|
|
// 5ms
|
|
EXPECT_EQ(5ms, result.interval);
|
|
EXPECT_EQ(conn.transportSettings.minBurstPackets, result.burstSize);
|
|
}
|
|
|
|
TEST_F(CongestionControlFunctionsTest, SmallCwnd) {
|
|
QuicConnectionStateBase conn(QuicNodeType::Client);
|
|
conn.udpSendPacketLen = 1;
|
|
conn.transportSettings.minBurstPackets = 1;
|
|
conn.transportSettings.pacingTimerTickInterval = 1ms;
|
|
auto result = calculatePacingRate(
|
|
conn, 10, conn.transportSettings.minCwndInMss, 100000us);
|
|
EXPECT_EQ(10ms, result.interval);
|
|
EXPECT_EQ(1, result.burstSize);
|
|
}
|
|
|
|
TEST_F(CongestionControlFunctionsTest, RttSmallerThanInterval) {
|
|
QuicConnectionStateBase conn(QuicNodeType::Client);
|
|
conn.udpSendPacketLen = 1;
|
|
conn.transportSettings.minBurstPackets = 1;
|
|
conn.transportSettings.pacingTimerTickInterval = 10ms;
|
|
auto result =
|
|
calculatePacingRate(conn, 10, conn.transportSettings.minCwndInMss, 1ms);
|
|
EXPECT_EQ(std::chrono::milliseconds::zero(), result.interval);
|
|
EXPECT_EQ(
|
|
conn.transportSettings.writeConnectionDataPacketsLimit, result.burstSize);
|
|
}
|
|
|
|
|
|
} // namespace test
|
|
} // namespace quic
|