blob: 5cc102fed0a9952de85ad75b988547908c11bc0c [file] [log] [blame]
* 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 "modules/rtp_rtcp/source/rtcp_packet/report_block.h"
#include <limits>
#include "rtc_base/random.h"
#include "test/gtest.h"
using webrtc::rtcp::ReportBlock;
namespace webrtc {
namespace {
const uint32_t kRemoteSsrc = 0x23456789;
const uint8_t kFractionLost = 55;
// Use values that are streamed differently LE and BE.
const int32_t kCumulativeLost = 0x111213;
const uint32_t kExtHighestSeqNum = 0x22232425;
const uint32_t kJitter = 0x33343536;
const uint32_t kLastSr = 0x44454647;
const uint32_t kDelayLastSr = 0x55565758;
const size_t kBufferLength = ReportBlock::kLength;
TEST(RtcpPacketReportBlockTest, ParseChecksLength) {
uint8_t buffer[kBufferLength];
memset(buffer, 0, sizeof(buffer));
ReportBlock rb;
EXPECT_FALSE(rb.Parse(buffer, kBufferLength - 1));
EXPECT_TRUE(rb.Parse(buffer, kBufferLength));
TEST(RtcpPacketReportBlockTest, ParseAnyData) {
uint8_t buffer[kBufferLength];
// Fill buffer with semi-random data.
Random generator(0x256F8A285EC829ull);
for (size_t i = 0; i < kBufferLength; ++i)
buffer[i] = static_cast<uint8_t>(generator.Rand(0, 0xff));
ReportBlock rb;
EXPECT_TRUE(rb.Parse(buffer, kBufferLength));
TEST(RtcpPacketReportBlockTest, ParseMatchCreate) {
ReportBlock rb;
uint8_t buffer[kBufferLength];
ReportBlock parsed;
EXPECT_TRUE(parsed.Parse(buffer, kBufferLength));
EXPECT_EQ(kRemoteSsrc, parsed.source_ssrc());
EXPECT_EQ(kFractionLost, parsed.fraction_lost());
EXPECT_EQ(kCumulativeLost, parsed.cumulative_lost_signed());
EXPECT_EQ(kExtHighestSeqNum, parsed.extended_high_seq_num());
EXPECT_EQ(kJitter, parsed.jitter());
EXPECT_EQ(kLastSr, parsed.last_sr());
EXPECT_EQ(kDelayLastSr, parsed.delay_since_last_sr());
TEST(RtcpPacketReportBlockTest, ValidateCumulativeLost) {
// CumulativeLost is a signed 24-bit integer.
// However, existing code expects it to be an unsigned integer.
// The case of negative values should be unusual; we return 0
// when caller wants an unsigned integer.
const int32_t kMaxCumulativeLost = 0x7fffff;
const int32_t kMinCumulativeLost = -0x800000;
ReportBlock rb;
EXPECT_FALSE(rb.SetCumulativeLost(kMaxCumulativeLost + 1));
EXPECT_FALSE(rb.SetCumulativeLost(kMinCumulativeLost - 1));
EXPECT_EQ(kMinCumulativeLost, rb.cumulative_lost_signed());
EXPECT_EQ(0u, rb.cumulative_lost());
TEST(RtcpPacketReportBlockTest, ParseNegativeCumulativeLost) {
// CumulativeLost is a signed 24-bit integer.
const int32_t kNegativeCumulativeLost = -123;
ReportBlock rb;
uint8_t buffer[kBufferLength];
ReportBlock parsed;
EXPECT_TRUE(parsed.Parse(buffer, kBufferLength));
EXPECT_EQ(kNegativeCumulativeLost, parsed.cumulative_lost_signed());
} // namespace
} // namespace webrtc