| /* |
| * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "webrtc/modules/remote_bitrate_estimator/bitrate_estimator.h" |
| |
| namespace { |
| |
| using webrtc::BitRateStats; |
| |
| class BitRateStatsTest : public ::testing::Test { |
| protected: |
| BitRateStatsTest() {}; |
| BitRateStats stats_; |
| }; |
| |
| TEST_F(BitRateStatsTest, TestStrictMode) { |
| int64_t now_ms = 0; |
| // Should be initialized to 0. |
| EXPECT_EQ(0u, stats_.BitRate(now_ms)); |
| stats_.Update(1500, now_ms); |
| // Expecting 24 kbps given a 500 ms window with one 1500 bytes packet. |
| EXPECT_EQ(24000u, stats_.BitRate(now_ms)); |
| stats_.Init(); |
| // Expecting 0 after init. |
| EXPECT_EQ(0u, stats_.BitRate(now_ms)); |
| for (int i = 0; i < 100000; ++i) { |
| if (now_ms % 10 == 0) { |
| stats_.Update(1500, now_ms); |
| } |
| // Approximately 1200 kbps expected. Not exact since when packets |
| // are removed we will jump 10 ms to the next packet. |
| if (now_ms > 0 && now_ms % 500 == 0) { |
| EXPECT_NEAR(1200000u, stats_.BitRate(now_ms), 24000u); |
| } |
| now_ms += 1; |
| } |
| now_ms += 500; |
| // The window is 2 seconds. If nothing has been received for that time |
| // the estimate should be 0. |
| EXPECT_EQ(0u, stats_.BitRate(now_ms)); |
| } |
| } // namespace |