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4a9537798e
Summary: ^ Reviewed By: sharma95 Differential Revision: D15172546 fbshipit-source-id: bacc832752a433b86962e77bb19aff4504640e60
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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*/
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#include <quic/congestion_control/CongestionControlFunctions.h>
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#include <folly/portability/GTest.h>
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#include <quic/QuicConstants.h>
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#include <quic/state/StateData.h>
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using namespace quic;
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using namespace testing;
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namespace quic {
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namespace test {
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class CongestionControlFunctionsTest : public Test {};
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TEST_F(CongestionControlFunctionsTest, CalculatePacingRate) {
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QuicConnectionStateBase conn(QuicNodeType::Client);
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conn.udpSendPacketLen = 1;
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std::chrono::microseconds rtt(1000 * 100);
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auto result =
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calculatePacingRate(conn, 50, std::chrono::milliseconds(10), rtt);
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EXPECT_EQ(std::chrono::milliseconds(10), result.first);
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EXPECT_EQ(5, result.second);
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auto result2 =
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calculatePacingRate(conn, 300, std::chrono::milliseconds(1), rtt);
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EXPECT_EQ(std::chrono::milliseconds(1), result2.first);
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EXPECT_EQ(3, result2.second);
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}
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TEST_F(CongestionControlFunctionsTest, MinPacingRate) {
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QuicConnectionStateBase conn(QuicNodeType::Client);
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conn.udpSendPacketLen = 1;
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auto result = calculatePacingRate(
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conn,
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100,
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std::chrono::milliseconds(1),
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std::chrono::microseconds(1000 * 100));
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EXPECT_EQ(std::chrono::milliseconds(2), result.first);
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EXPECT_EQ(conn.transportSettings.minCwndInMss, result.second);
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}
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TEST_F(CongestionControlFunctionsTest, SmallCwnd) {
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QuicConnectionStateBase conn(QuicNodeType::Client);
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conn.udpSendPacketLen = 1;
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auto result = calculatePacingRate(
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conn,
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10,
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std::chrono::milliseconds(1),
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std::chrono::microseconds(1000 * 100));
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EXPECT_EQ(std::chrono::milliseconds(20), result.first);
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EXPECT_EQ(conn.transportSettings.minCwndInMss, result.second);
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}
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TEST_F(CongestionControlFunctionsTest, RttSmallerThanInterval) {
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QuicConnectionStateBase conn(QuicNodeType::Client);
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conn.udpSendPacketLen = 1;
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auto result = calculatePacingRate(
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conn, 10, std::chrono::milliseconds(10), std::chrono::milliseconds(1));
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EXPECT_EQ(std::chrono::milliseconds::zero(), result.first);
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EXPECT_EQ(
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conn.transportSettings.writeConnectionDataPacketsLimit, result.second);
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}
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} // namespace test
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} // namespace quic
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