diff options
Diffstat (limited to 'third_party/libwebrtc/video/report_block_stats_unittest.cc')
-rw-r--r-- | third_party/libwebrtc/video/report_block_stats_unittest.cc | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/third_party/libwebrtc/video/report_block_stats_unittest.cc b/third_party/libwebrtc/video/report_block_stats_unittest.cc new file mode 100644 index 0000000000..bd66e571a0 --- /dev/null +++ b/third_party/libwebrtc/video/report_block_stats_unittest.cc @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2014 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 "video/report_block_stats.h" + +#include "test/gtest.h" + +namespace webrtc { +namespace { + +constexpr uint32_t kSsrc1 = 123; +constexpr uint32_t kSsrc2 = 234; + +TEST(ReportBlockStatsTest, StoreAndGetFractionLost) { + ReportBlockStats stats; + EXPECT_EQ(-1, stats.FractionLostInPercent()); + + // First report. + stats.Store(kSsrc1, /*packets_lost=*/10, + /*extended_highest_sequence_number=*/24'000); + EXPECT_EQ(-1, stats.FractionLostInPercent()); + // fl: 100 * (15-10) / (24100-24000) = 5% + stats.Store(kSsrc1, /*packets_lost=*/15, + /*extended_highest_sequence_number=*/24'100); + EXPECT_EQ(5, stats.FractionLostInPercent()); + // fl: 100 * (50-10) / (24200-24000) = 20% + stats.Store(kSsrc1, /*packets_lost=*/50, + /*extended_highest_sequence_number=*/24'200); + EXPECT_EQ(20, stats.FractionLostInPercent()); +} + +TEST(ReportBlockStatsTest, StoreAndGetFractionLost_TwoSsrcs) { + ReportBlockStats stats; + EXPECT_EQ(-1, stats.FractionLostInPercent()); + + // First report. + stats.Store(kSsrc1, /*packets_lost=*/10, + /*extended_highest_sequence_number=*/24'000); + EXPECT_EQ(-1, stats.FractionLostInPercent()); + // fl: 100 * (15-10) / (24100-24000) = 5% + stats.Store(kSsrc1, /*packets_lost=*/15, + /*extended_highest_sequence_number=*/24'100); + EXPECT_EQ(5, stats.FractionLostInPercent()); + + // First report, kSsrc2. + stats.Store(kSsrc2, /*packets_lost=*/111, + /*extended_highest_sequence_number=*/8'500); + EXPECT_EQ(5, stats.FractionLostInPercent()); + // fl: 100 * ((15-10) + (136-111)) / ((24100-24000) + (8800-8500)) = 7% + stats.Store(kSsrc2, /*packets_lost=*/136, + /*extended_highest_sequence_number=*/8'800); + EXPECT_EQ(7, stats.FractionLostInPercent()); +} + +} // namespace +} // namespace webrtc |