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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
119 lines
4.4 KiB
C++
119 lines
4.4 KiB
C++
/*
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* Copyright (c) 2016 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/pacing/interval_budget.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace {
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constexpr int kWindowMs = 500;
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constexpr int kBitrateKbps = 100;
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constexpr bool kCanBuildUpUnderuse = true;
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constexpr bool kCanNotBuildUpUnderuse = false;
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size_t TimeToBytes(int bitrate_kbps, int time_ms) {
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return static_cast<size_t>(bitrate_kbps * time_ms / 8);
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}
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} // namespace
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TEST(IntervalBudgetTest, InitailState) {
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IntervalBudget interval_budget(kBitrateKbps);
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EXPECT_EQ(interval_budget.budget_level_percent(), 0);
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EXPECT_EQ(interval_budget.bytes_remaining(), 0u);
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}
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TEST(IntervalBudgetTest, Underuse) {
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IntervalBudget interval_budget(kBitrateKbps);
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int delta_time_ms = 50;
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interval_budget.IncreaseBudget(delta_time_ms);
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EXPECT_EQ(interval_budget.budget_level_percent(), kWindowMs / delta_time_ms);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps, delta_time_ms));
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}
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TEST(IntervalBudgetTest, DontUnderuseMoreThanMaxWindow) {
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IntervalBudget interval_budget(kBitrateKbps);
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int delta_time_ms = 1000;
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interval_budget.IncreaseBudget(delta_time_ms);
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EXPECT_EQ(interval_budget.budget_level_percent(), 100);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps, kWindowMs));
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}
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TEST(IntervalBudgetTest, DontUnderuseMoreThanMaxWindowWhenChangeBitrate) {
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IntervalBudget interval_budget(kBitrateKbps);
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int delta_time_ms = kWindowMs / 2;
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interval_budget.IncreaseBudget(delta_time_ms);
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interval_budget.set_target_rate_kbps(kBitrateKbps / 10);
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EXPECT_EQ(interval_budget.budget_level_percent(), 100);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps / 10, kWindowMs));
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}
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TEST(IntervalBudgetTest, BalanceChangeOnBitrateChange) {
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IntervalBudget interval_budget(kBitrateKbps);
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int delta_time_ms = kWindowMs;
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interval_budget.IncreaseBudget(delta_time_ms);
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interval_budget.set_target_rate_kbps(kBitrateKbps * 2);
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EXPECT_EQ(interval_budget.budget_level_percent(), 50);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps, kWindowMs));
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}
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TEST(IntervalBudgetTest, Overuse) {
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IntervalBudget interval_budget(kBitrateKbps);
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int overuse_time_ms = 50;
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int used_bytes = TimeToBytes(kBitrateKbps, overuse_time_ms);
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interval_budget.UseBudget(used_bytes);
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EXPECT_EQ(interval_budget.budget_level_percent(),
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-kWindowMs / overuse_time_ms);
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EXPECT_EQ(interval_budget.bytes_remaining(), 0u);
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}
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TEST(IntervalBudgetTest, DontOveruseMoreThanMaxWindow) {
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IntervalBudget interval_budget(kBitrateKbps);
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int overuse_time_ms = 1000;
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int used_bytes = TimeToBytes(kBitrateKbps, overuse_time_ms);
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interval_budget.UseBudget(used_bytes);
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EXPECT_EQ(interval_budget.budget_level_percent(), -100);
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EXPECT_EQ(interval_budget.bytes_remaining(), 0u);
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}
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TEST(IntervalBudgetTest, CanBuildUpUnderuseWhenConfigured) {
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IntervalBudget interval_budget(kBitrateKbps, kCanBuildUpUnderuse);
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int delta_time_ms = 50;
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interval_budget.IncreaseBudget(delta_time_ms);
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EXPECT_EQ(interval_budget.budget_level_percent(), kWindowMs / delta_time_ms);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps, delta_time_ms));
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interval_budget.IncreaseBudget(delta_time_ms);
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EXPECT_EQ(interval_budget.budget_level_percent(),
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2 * kWindowMs / delta_time_ms);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps, 2 * delta_time_ms));
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}
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TEST(IntervalBudgetTest, CanNotBuildUpUnderuseWhenConfigured) {
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IntervalBudget interval_budget(kBitrateKbps, kCanNotBuildUpUnderuse);
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int delta_time_ms = 50;
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interval_budget.IncreaseBudget(delta_time_ms);
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EXPECT_EQ(interval_budget.budget_level_percent(), kWindowMs / delta_time_ms);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps, delta_time_ms));
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interval_budget.IncreaseBudget(delta_time_ms);
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EXPECT_EQ(interval_budget.budget_level_percent(), kWindowMs / delta_time_ms);
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EXPECT_EQ(interval_budget.bytes_remaining(),
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TimeToBytes(kBitrateKbps, delta_time_ms));
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}
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} // namespace webrtc
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