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/*
* 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/bye.h"
#include <cstddef>
#include <cstdint>
#include <string>
#include <vector>
#include "rtc_base/buffer.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/rtcp_packet_parser.h"
using ::testing::ElementsAre;
using webrtc::rtcp::Bye;
namespace webrtc {
namespace {
const uint32_t kSenderSsrc = 0x12345678;
const uint32_t kCsrc1 = 0x22232425;
const uint32_t kCsrc2 = 0x33343536;
} // namespace
TEST(RtcpPacketByeTest, CreateAndParseWithoutReason) {
Bye bye;
bye.SetSenderSsrc(kSenderSsrc);
Buffer raw = bye.Build();
Bye parsed_bye;
EXPECT_TRUE(test::ParseSinglePacket(raw, &parsed_bye));
EXPECT_EQ(kSenderSsrc, parsed_bye.sender_ssrc());
EXPECT_TRUE(parsed_bye.csrcs().empty());
EXPECT_TRUE(parsed_bye.reason().empty());
}
TEST(RtcpPacketByeTest, CreateAndParseWithCsrcs) {
Bye bye;
bye.SetSenderSsrc(kSenderSsrc);
EXPECT_TRUE(bye.SetCsrcs({kCsrc1, kCsrc2}));
EXPECT_TRUE(bye.reason().empty());
Buffer raw = bye.Build();
Bye parsed_bye;
EXPECT_TRUE(test::ParseSinglePacket(raw, &parsed_bye));
EXPECT_EQ(kSenderSsrc, parsed_bye.sender_ssrc());
EXPECT_THAT(parsed_bye.csrcs(), ElementsAre(kCsrc1, kCsrc2));
EXPECT_TRUE(parsed_bye.reason().empty());
}
TEST(RtcpPacketByeTest, CreateAndParseWithCsrcsAndAReason) {
Bye bye;
const std::string kReason = "Some Reason";
bye.SetSenderSsrc(kSenderSsrc);
EXPECT_TRUE(bye.SetCsrcs({kCsrc1, kCsrc2}));
bye.SetReason(kReason);
Buffer raw = bye.Build();
Bye parsed_bye;
EXPECT_TRUE(test::ParseSinglePacket(raw, &parsed_bye));
EXPECT_EQ(kSenderSsrc, parsed_bye.sender_ssrc());
EXPECT_THAT(parsed_bye.csrcs(), ElementsAre(kCsrc1, kCsrc2));
EXPECT_EQ(kReason, parsed_bye.reason());
}
TEST(RtcpPacketByeTest, CreateWithTooManyCsrcs) {
Bye bye;
bye.SetSenderSsrc(kSenderSsrc);
const int kMaxCsrcs = (1 << 5) - 2; // 5 bit len, first item is sender SSRC.
EXPECT_TRUE(bye.SetCsrcs(std::vector<uint32_t>(kMaxCsrcs, kCsrc1)));
EXPECT_FALSE(bye.SetCsrcs(std::vector<uint32_t>(kMaxCsrcs + 1, kCsrc1)));
}
TEST(RtcpPacketByeTest, CreateAndParseWithAReason) {
Bye bye;
const std::string kReason = "Some Random Reason";
bye.SetSenderSsrc(kSenderSsrc);
bye.SetReason(kReason);
Buffer raw = bye.Build();
Bye parsed_bye;
EXPECT_TRUE(test::ParseSinglePacket(raw, &parsed_bye));
EXPECT_EQ(kSenderSsrc, parsed_bye.sender_ssrc());
EXPECT_TRUE(parsed_bye.csrcs().empty());
EXPECT_EQ(kReason, parsed_bye.reason());
}
TEST(RtcpPacketByeTest, CreateAndParseWithReasons) {
// Test that packet creation/parsing behave with reasons of different length
// both when it require padding and when it does not.
for (size_t reminder = 0; reminder < 4; ++reminder) {
const std::string kReason(4 + reminder, 'a' + reminder);
Bye bye;
bye.SetSenderSsrc(kSenderSsrc);
bye.SetReason(kReason);
Buffer raw = bye.Build();
Bye parsed_bye;
EXPECT_TRUE(test::ParseSinglePacket(raw, &parsed_bye));
EXPECT_EQ(kReason, parsed_bye.reason());
}
}
TEST(RtcpPacketByeTest, ParseEmptyPacket) {
uint8_t kEmptyPacket[] = {0x80, Bye::kPacketType, 0, 0};
Bye parsed_bye;
EXPECT_TRUE(test::ParseSinglePacket(kEmptyPacket, &parsed_bye));
EXPECT_EQ(0u, parsed_bye.sender_ssrc());
EXPECT_TRUE(parsed_bye.csrcs().empty());
EXPECT_TRUE(parsed_bye.reason().empty());
}
TEST(RtcpPacketByeTest, ParseFailOnInvalidSrcCount) {
Bye bye;
bye.SetSenderSsrc(kSenderSsrc);
Buffer raw = bye.Build();
raw[0]++; // Damage the packet: increase ssrc count by one.
Bye parsed_bye;
EXPECT_FALSE(test::ParseSinglePacket(raw, &parsed_bye));
}
TEST(RtcpPacketByeTest, ParseFailOnInvalidReasonLength) {
Bye bye;
bye.SetSenderSsrc(kSenderSsrc);
bye.SetReason("18 characters long");
Buffer raw = bye.Build();
// Damage the packet: decrease payload size by 4 bytes
raw[3]--;
raw.SetSize(raw.size() - 4);
Bye parsed_bye;
EXPECT_FALSE(test::ParseSinglePacket(raw, &parsed_bye));
}
} // namespace webrtc
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