3e70781361
This is a follow-up to https://webrtc-review.googlesource.com/c/src/+/106280. This time the whole code base is covered. Some files may have not been fixed though, whenever the IWYU tool was breaking the build. Bug: webrtc:8311 Change-Id: I2c31f552a87e887d33931d46e87b6208b1e483ef Reviewed-on: https://webrtc-review.googlesource.com/c/111965 Commit-Queue: Yves Gerey <yvesg@google.com> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25830}
134 lines
4.4 KiB
C++
134 lines
4.4 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/congestion_controller/bbr/data_transfer_tracker.h"
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#include <stdint.h>
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#include "test/gtest.h"
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namespace webrtc {
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namespace bbr {
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namespace test {
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namespace {
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struct ResultForTest {
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int64_t ack_span_ms;
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int64_t send_span_ms;
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int64_t acked_bytes;
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};
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class DataTransferTrackerForTest : public DataTransferTracker {
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public:
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void AddSample(int bytes, int send_time_ms, int ack_time_ms) {
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DataTransferTracker::AddSample(DataSize::bytes(bytes),
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Timestamp::ms(send_time_ms),
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Timestamp::ms(ack_time_ms));
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}
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void ClearOldSamples(int excluding_end_ms) {
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DataTransferTracker::ClearOldSamples(Timestamp::ms(excluding_end_ms));
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}
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ResultForTest GetRatesByAckTime(int covered_start_ms, int including_end_ms) {
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auto result = DataTransferTracker::GetRatesByAckTime(
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Timestamp::ms(covered_start_ms), Timestamp::ms(including_end_ms));
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return ResultForTest{result.ack_timespan.ms(), result.send_timespan.ms(),
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result.acked_data.bytes()};
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}
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};
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} // namespace
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TEST(DataTransferTrackerTest, TracksData) {
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DataTransferTrackerForTest calc;
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// Since we dont have any previous reference for the first packet, it won't be
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// counted.
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calc.AddSample(5555, 100000, 100100);
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calc.AddSample(1000, 100020, 100120);
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calc.AddSample(1000, 100040, 100140);
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calc.AddSample(1000, 100060, 100160);
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auto result = calc.GetRatesByAckTime(100000, 100200);
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EXPECT_EQ(result.acked_bytes, 3000);
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EXPECT_EQ(result.ack_span_ms, 60);
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EXPECT_EQ(result.send_span_ms, 60);
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}
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TEST(DataTransferTrackerTest, CoversStartTime) {
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DataTransferTrackerForTest calc;
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calc.AddSample(5555, 100000, 100100);
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calc.AddSample(1000, 100020, 100120);
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calc.AddSample(1000, 100040, 100140);
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calc.AddSample(1000, 100060, 100160);
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calc.AddSample(1000, 100080, 100180);
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auto result = calc.GetRatesByAckTime(100140, 100200);
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EXPECT_EQ(result.acked_bytes, 3000);
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EXPECT_EQ(result.ack_span_ms, 60);
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EXPECT_EQ(result.send_span_ms, 60);
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}
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TEST(DataTransferTrackerTest, IncludesEndExcludesPastEnd) {
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DataTransferTrackerForTest calc;
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calc.AddSample(5555, 100000, 100100);
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calc.AddSample(1000, 100020, 100120);
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calc.AddSample(1000, 100040, 100140);
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calc.AddSample(1000, 100060, 100160);
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calc.AddSample(1000, 100080, 100180);
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auto result = calc.GetRatesByAckTime(100120, 100160);
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EXPECT_EQ(result.acked_bytes, 3000);
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EXPECT_EQ(result.ack_span_ms, 60);
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EXPECT_EQ(result.send_span_ms, 60);
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}
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TEST(DataTransferTrackerTest, AccumulatesDuplicates) {
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DataTransferTrackerForTest calc;
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calc.AddSample(5555, 100000, 100100);
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// Two packets at same time, should be accumulated.
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calc.AddSample(1000, 100020, 100120);
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calc.AddSample(1000, 100020, 100120);
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calc.AddSample(1000, 100060, 100160);
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// Two packets at same time, should be accumulated.
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calc.AddSample(1000, 100100, 100200);
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calc.AddSample(1000, 100100, 100200);
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calc.AddSample(1000, 100120, 100220);
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auto result = calc.GetRatesByAckTime(100120, 100200);
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EXPECT_EQ(result.acked_bytes, 5000);
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EXPECT_EQ(result.ack_span_ms, 100);
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EXPECT_EQ(result.send_span_ms, 100);
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}
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TEST(DataTransferTrackerTest, RemovesOldData) {
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DataTransferTrackerForTest calc;
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calc.AddSample(5555, 100000, 100100);
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calc.AddSample(1000, 100020, 100120);
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calc.AddSample(1000, 100040, 100140);
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calc.AddSample(1000, 100060, 100160);
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calc.AddSample(1000, 100080, 100180);
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{
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auto result = calc.GetRatesByAckTime(100120, 100200);
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EXPECT_EQ(result.acked_bytes, 4000);
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EXPECT_EQ(result.ack_span_ms, 80);
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EXPECT_EQ(result.send_span_ms, 80);
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}
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// Note that this operation means that the packet acked at 100140 will not be
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// counted any more, just used as time reference.
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calc.ClearOldSamples(100140);
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{
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auto result = calc.GetRatesByAckTime(100120, 100200);
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EXPECT_EQ(result.acked_bytes, 2000);
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EXPECT_EQ(result.ack_span_ms, 40);
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EXPECT_EQ(result.send_span_ms, 40);
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}
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}
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} // namespace test
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} // namespace bbr
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} // namespace webrtc
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