| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "quiche/quic/core/quic_bandwidth.h" |
| |
| #include <limits> |
| |
| #include "quiche/quic/core/quic_time.h" |
| #include "quiche/quic/platform/api/quic_test.h" |
| |
| namespace quic { |
| namespace test { |
| |
| class QuicBandwidthTest : public QuicTest {}; |
| |
| TEST_F(QuicBandwidthTest, FromTo) { |
| EXPECT_EQ(QuicBandwidth::FromKBitsPerSecond(1), |
| QuicBandwidth::FromBitsPerSecond(1000)); |
| EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(1), |
| QuicBandwidth::FromBytesPerSecond(1000)); |
| EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(8000), |
| QuicBandwidth::FromBytesPerSecond(1000)); |
| EXPECT_EQ(QuicBandwidth::FromKBitsPerSecond(8), |
| QuicBandwidth::FromKBytesPerSecond(1)); |
| |
| EXPECT_EQ(0, QuicBandwidth::Zero().ToBitsPerSecond()); |
| EXPECT_EQ(0, QuicBandwidth::Zero().ToKBitsPerSecond()); |
| EXPECT_EQ(0, QuicBandwidth::Zero().ToBytesPerSecond()); |
| EXPECT_EQ(0, QuicBandwidth::Zero().ToKBytesPerSecond()); |
| |
| EXPECT_EQ(1, QuicBandwidth::FromBitsPerSecond(1000).ToKBitsPerSecond()); |
| EXPECT_EQ(1000, QuicBandwidth::FromKBitsPerSecond(1).ToBitsPerSecond()); |
| EXPECT_EQ(1, QuicBandwidth::FromBytesPerSecond(1000).ToKBytesPerSecond()); |
| EXPECT_EQ(1000, QuicBandwidth::FromKBytesPerSecond(1).ToBytesPerSecond()); |
| } |
| |
| TEST_F(QuicBandwidthTest, Add) { |
| QuicBandwidth bandwidht_1 = QuicBandwidth::FromKBitsPerSecond(1); |
| QuicBandwidth bandwidht_2 = QuicBandwidth::FromKBytesPerSecond(1); |
| |
| EXPECT_EQ(9000, (bandwidht_1 + bandwidht_2).ToBitsPerSecond()); |
| EXPECT_EQ(9000, (bandwidht_2 + bandwidht_1).ToBitsPerSecond()); |
| } |
| |
| TEST_F(QuicBandwidthTest, Subtract) { |
| QuicBandwidth bandwidht_1 = QuicBandwidth::FromKBitsPerSecond(1); |
| QuicBandwidth bandwidht_2 = QuicBandwidth::FromKBytesPerSecond(1); |
| |
| EXPECT_EQ(7000, (bandwidht_2 - bandwidht_1).ToBitsPerSecond()); |
| } |
| |
| TEST_F(QuicBandwidthTest, TimeDelta) { |
| EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(1000), |
| QuicBandwidth::FromBytesAndTimeDelta( |
| 1000, QuicTime::Delta::FromMilliseconds(1))); |
| |
| EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(10), |
| QuicBandwidth::FromBytesAndTimeDelta( |
| 1000, QuicTime::Delta::FromMilliseconds(100))); |
| |
| EXPECT_EQ(QuicBandwidth::Zero(), QuicBandwidth::FromBytesAndTimeDelta( |
| 0, QuicTime::Delta::FromSeconds(9))); |
| |
| EXPECT_EQ( |
| QuicBandwidth::FromBitsPerSecond(1), |
| QuicBandwidth::FromBytesAndTimeDelta(1, QuicTime::Delta::FromSeconds(9))); |
| } |
| |
| TEST_F(QuicBandwidthTest, Scale) { |
| EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(500), |
| QuicBandwidth::FromKBytesPerSecond(1000) * 0.5f); |
| EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(750), |
| 0.75f * QuicBandwidth::FromKBytesPerSecond(1000)); |
| EXPECT_EQ(QuicBandwidth::FromKBytesPerSecond(1250), |
| QuicBandwidth::FromKBytesPerSecond(1000) * 1.25f); |
| |
| // Ensure we are rounding correctly within a 1bps level of precision. |
| EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(5), |
| QuicBandwidth::FromBitsPerSecond(9) * 0.5f); |
| EXPECT_EQ(QuicBandwidth::FromBitsPerSecond(2), |
| QuicBandwidth::FromBitsPerSecond(12) * 0.2f); |
| } |
| |
| TEST_F(QuicBandwidthTest, BytesPerPeriod) { |
| EXPECT_EQ(2000u, QuicBandwidth::FromKBytesPerSecond(2000).ToBytesPerPeriod( |
| QuicTime::Delta::FromMilliseconds(1))); |
| EXPECT_EQ(2u, QuicBandwidth::FromKBytesPerSecond(2000).ToKBytesPerPeriod( |
| QuicTime::Delta::FromMilliseconds(1))); |
| EXPECT_EQ(200000u, QuicBandwidth::FromKBytesPerSecond(2000).ToBytesPerPeriod( |
| QuicTime::Delta::FromMilliseconds(100))); |
| EXPECT_EQ(200u, QuicBandwidth::FromKBytesPerSecond(2000).ToKBytesPerPeriod( |
| QuicTime::Delta::FromMilliseconds(100))); |
| |
| // 1599 * 1001 = 1600599 bits/ms = 200.074875 bytes/s. |
| EXPECT_EQ(200u, QuicBandwidth::FromBitsPerSecond(1599).ToBytesPerPeriod( |
| QuicTime::Delta::FromMilliseconds(1001))); |
| |
| EXPECT_EQ(200u, QuicBandwidth::FromBitsPerSecond(1599).ToKBytesPerPeriod( |
| QuicTime::Delta::FromSeconds(1001))); |
| } |
| |
| TEST_F(QuicBandwidthTest, TransferTime) { |
| EXPECT_EQ(QuicTime::Delta::FromSeconds(1), |
| QuicBandwidth::FromKBytesPerSecond(1).TransferTime(1000)); |
| EXPECT_EQ(QuicTime::Delta::Zero(), QuicBandwidth::Zero().TransferTime(1000)); |
| } |
| |
| TEST_F(QuicBandwidthTest, RelOps) { |
| const QuicBandwidth b1 = QuicBandwidth::FromKBitsPerSecond(1); |
| const QuicBandwidth b2 = QuicBandwidth::FromKBytesPerSecond(2); |
| EXPECT_EQ(b1, b1); |
| EXPECT_NE(b1, b2); |
| EXPECT_LT(b1, b2); |
| EXPECT_GT(b2, b1); |
| EXPECT_LE(b1, b1); |
| EXPECT_LE(b1, b2); |
| EXPECT_GE(b1, b1); |
| EXPECT_GE(b2, b1); |
| } |
| |
| TEST_F(QuicBandwidthTest, DebuggingValue) { |
| EXPECT_EQ("128 bits/s (16 bytes/s)", |
| QuicBandwidth::FromBytesPerSecond(16).ToDebuggingValue()); |
| EXPECT_EQ("4096 bits/s (512 bytes/s)", |
| QuicBandwidth::FromBytesPerSecond(512).ToDebuggingValue()); |
| |
| QuicBandwidth bandwidth = QuicBandwidth::FromBytesPerSecond(1000 * 50); |
| EXPECT_EQ("400.00 kbits/s (50.00 kbytes/s)", bandwidth.ToDebuggingValue()); |
| |
| bandwidth = bandwidth * 1000; |
| EXPECT_EQ("400.00 Mbits/s (50.00 Mbytes/s)", bandwidth.ToDebuggingValue()); |
| |
| bandwidth = bandwidth * 1000; |
| EXPECT_EQ("400.00 Gbits/s (50.00 Gbytes/s)", bandwidth.ToDebuggingValue()); |
| } |
| |
| TEST_F(QuicBandwidthTest, SpecialValues) { |
| EXPECT_EQ(0, QuicBandwidth::Zero().ToBitsPerSecond()); |
| EXPECT_EQ(std::numeric_limits<int64_t>::max(), |
| QuicBandwidth::Infinite().ToBitsPerSecond()); |
| |
| EXPECT_TRUE(QuicBandwidth::Zero().IsZero()); |
| EXPECT_FALSE(QuicBandwidth::Zero().IsInfinite()); |
| |
| EXPECT_TRUE(QuicBandwidth::Infinite().IsInfinite()); |
| EXPECT_FALSE(QuicBandwidth::Infinite().IsZero()); |
| } |
| |
| } // namespace test |
| } // namespace quic |