diff options
Diffstat (limited to 'webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr_unittest.cc')
-rw-r--r-- | webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr_unittest.cc | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr_unittest.cc b/webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr_unittest.cc new file mode 100644 index 0000000000..c7c139c560 --- /dev/null +++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr_unittest.cc @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2015 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 "webrtc/modules/rtp_rtcp/source/rtcp_packet/dlrr.h" + +#include "testing/gtest/include/gtest/gtest.h" + +#include "webrtc/modules/rtp_rtcp/source/byte_io.h" + +using webrtc::rtcp::Dlrr; + +namespace webrtc { +namespace { + +const uint32_t kSsrc = 0x12345678; +const uint32_t kLastRR = 0x23344556; +const uint32_t kDelay = 0x33343536; +const uint8_t kBlock[] = {0x05, 0x00, 0x00, 0x03, 0x12, 0x34, 0x56, 0x78, + 0x23, 0x34, 0x45, 0x56, 0x33, 0x34, 0x35, 0x36}; +const size_t kBlockSizeBytes = sizeof(kBlock); + +TEST(RtcpPacketDlrrTest, Empty) { + Dlrr dlrr; + + EXPECT_EQ(0u, dlrr.BlockLength()); +} + +TEST(RtcpPacketDlrrTest, Create) { + Dlrr dlrr; + EXPECT_TRUE(dlrr.WithDlrrItem(kSsrc, kLastRR, kDelay)); + + ASSERT_EQ(kBlockSizeBytes, dlrr.BlockLength()); + uint8_t buffer[kBlockSizeBytes]; + + dlrr.Create(buffer); + EXPECT_EQ(0, memcmp(buffer, kBlock, kBlockSizeBytes)); +} + +TEST(RtcpPacketDlrrTest, Parse) { + Dlrr dlrr; + uint16_t block_length = ByteReader<uint16_t>::ReadBigEndian(&kBlock[2]); + EXPECT_TRUE(dlrr.Parse(kBlock, block_length)); + + EXPECT_EQ(1u, dlrr.sub_blocks().size()); + const Dlrr::SubBlock& block = dlrr.sub_blocks().front(); + EXPECT_EQ(kSsrc, block.ssrc); + EXPECT_EQ(kLastRR, block.last_rr); + EXPECT_EQ(kDelay, block.delay_since_last_rr); +} + +TEST(RtcpPacketDlrrTest, ParseFailsOnBadSize) { + const size_t kBigBufferSize = 0x100; // More than enough. + uint8_t buffer[kBigBufferSize]; + buffer[0] = Dlrr::kBlockType; + buffer[1] = 0; // Reserved. + buffer[2] = 0; // Most significant size byte. + for (uint8_t size = 3; size < 6; ++size) { + buffer[3] = size; + Dlrr dlrr; + // Parse should be successful only when size is multiple of 3. + EXPECT_EQ(size % 3 == 0, dlrr.Parse(buffer, static_cast<uint16_t>(size))); + } +} + +TEST(RtcpPacketDlrrTest, FailsOnTooManySubBlocks) { + Dlrr dlrr; + for (size_t i = 1; i <= Dlrr::kMaxNumberOfDlrrItems; ++i) { + EXPECT_TRUE(dlrr.WithDlrrItem(kSsrc + i, kLastRR + i, kDelay + i)); + } + EXPECT_FALSE(dlrr.WithDlrrItem(kSsrc, kLastRR, kDelay)); +} + +TEST(RtcpPacketDlrrTest, CreateAndParseMaxSubBlocks) { + const size_t kBufferSize = 0x1000; // More than enough. + uint8_t buffer[kBufferSize]; + + // Create. + Dlrr dlrr; + for (size_t i = 1; i <= Dlrr::kMaxNumberOfDlrrItems; ++i) { + EXPECT_TRUE(dlrr.WithDlrrItem(kSsrc + i, kLastRR + i, kDelay + i)); + } + size_t used_buffer_size = dlrr.BlockLength(); + ASSERT_LE(used_buffer_size, kBufferSize); + dlrr.Create(buffer); + + // Parse. + Dlrr parsed; + uint16_t block_length = ByteReader<uint16_t>::ReadBigEndian(&buffer[2]); + EXPECT_EQ(used_buffer_size, (block_length + 1) * 4u); + EXPECT_TRUE(parsed.Parse(buffer, block_length)); + EXPECT_TRUE(parsed.sub_blocks().size() == Dlrr::kMaxNumberOfDlrrItems); +} + +} // namespace +} // namespace webrtc |