135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org/* 2d41f59a23f333b61531045e9ff8cc99f022c5c49andrew@webrtc.org * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org * 435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org * Use of this source code is governed by a BSD-style license 535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org * that can be found in the LICENSE file in the root of the source 635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org * tree. An additional intellectual property rights grant can be found 735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org * in the file PATENTS. All contributing project authors may 835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org * be found in the AUTHORS file in the root of the source tree. 935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org */ 105b97b1216fbb8061216d4075d46596fc38d9cff4kjellander@webrtc.org 1134741c8b0e284a2a1b265b1c681e2539ae93f97dpbos@webrtc.org#include "webrtc/test/testsupport/packet_reader.h" 125b97b1216fbb8061216d4075d46596fc38d9cff4kjellander@webrtc.org 1334741c8b0e284a2a1b265b1c681e2539ae93f97dpbos@webrtc.org#include "testing/gtest/include/gtest/gtest.h" 1434741c8b0e284a2a1b265b1c681e2539ae93f97dpbos@webrtc.org#include "webrtc/test/testsupport/unittest_utils.h" 1535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 1635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgnamespace webrtc { 1735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgnamespace test { 1835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 1935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgclass PacketReaderTest: public PacketRelatedTest { 2035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org protected: 215b97b1216fbb8061216d4075d46596fc38d9cff4kjellander@webrtc.org PacketReaderTest() {} 225b97b1216fbb8061216d4075d46596fc38d9cff4kjellander@webrtc.org virtual ~PacketReaderTest() {} 2335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org void SetUp() { 2435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org reader_ = new PacketReader(); 2535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org } 2635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org void TearDown() { 2735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org delete reader_; 2835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org } 294591fbd09f9cb6e83433c49a12dd8524c2806502pkasting@chromium.org void VerifyPacketData(size_t expected_length, 3035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org int actual_length, 31a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t* original_data_pointer, 32a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t* new_data_pointer) { 334591fbd09f9cb6e83433c49a12dd8524c2806502pkasting@chromium.org EXPECT_EQ(static_cast<int>(expected_length), actual_length); 3435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(*original_data_pointer, *new_data_pointer); 3535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(0, memcmp(original_data_pointer, new_data_pointer, 3635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org actual_length)); 3735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org } 385b97b1216fbb8061216d4075d46596fc38d9cff4kjellander@webrtc.org PacketReader* reader_; 3935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org}; 4035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 4135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org// Test lack of initialization 4235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgTEST_F(PacketReaderTest, Uninitialized) { 43a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t* data_pointer = NULL; 4435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(-1, reader_->NextPacket(&data_pointer)); 4535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(NULL, data_pointer); 4635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} 4735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 4835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgTEST_F(PacketReaderTest, InitializeZeroLengthArgument) { 4935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org reader_->InitializeReading(packet_data_, 0, kPacketSizeInBytes); 5035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org ASSERT_EQ(0, reader_->NextPacket(&packet_data_pointer_)); 5135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} 5235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 5335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org// Test with something smaller than one packet 5435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgTEST_F(PacketReaderTest, NormalSmallData) { 5535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org const int kDataLengthInBytes = 1499; 56a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t data[kDataLengthInBytes]; 57a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t* data_pointer = data; 5835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org memset(data, 1, kDataLengthInBytes); 5935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 6035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org reader_->InitializeReading(data, kDataLengthInBytes, kPacketSizeInBytes); 6135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org int length_to_read = reader_->NextPacket(&data_pointer); 6235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org VerifyPacketData(kDataLengthInBytes, length_to_read, data, data_pointer); 6335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(0, data_pointer - data); // pointer hasn't moved 6435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 6535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org // Reading another one shall result in 0 bytes: 6635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org length_to_read = reader_->NextPacket(&data_pointer); 6735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(0, length_to_read); 6835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(kDataLengthInBytes, data_pointer - data); 6935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} 7035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 7135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org// Test with data length that exactly matches one packet 7235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgTEST_F(PacketReaderTest, NormalOnePacketData) { 73a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t data[kPacketSizeInBytes]; 74a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t* data_pointer = data; 7535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org memset(data, 1, kPacketSizeInBytes); 7635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 7735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org reader_->InitializeReading(data, kPacketSizeInBytes, kPacketSizeInBytes); 7835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org int length_to_read = reader_->NextPacket(&data_pointer); 7935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org VerifyPacketData(kPacketSizeInBytes, length_to_read, data, data_pointer); 8035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(0, data_pointer - data); // pointer hasn't moved 8135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 8235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org // Reading another one shall result in 0 bytes: 8335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org length_to_read = reader_->NextPacket(&data_pointer); 8435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(0, length_to_read); 854591fbd09f9cb6e83433c49a12dd8524c2806502pkasting@chromium.org EXPECT_EQ(kPacketSizeInBytes, static_cast<size_t>(data_pointer - data)); 8635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} 8735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 8835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org// Test with data length that will result in 3 packets 8935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgTEST_F(PacketReaderTest, NormalLargeData) { 9035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org reader_->InitializeReading(packet_data_, kPacketDataLength, 9135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org kPacketSizeInBytes); 9235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 9335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org int length_to_read = reader_->NextPacket(&packet_data_pointer_); 9435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org VerifyPacketData(kPacketSizeInBytes, length_to_read, 9535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org packet1_, packet_data_pointer_); 9635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 9735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org length_to_read = reader_->NextPacket(&packet_data_pointer_); 9835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org VerifyPacketData(kPacketSizeInBytes, length_to_read, 9935a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org packet2_, packet_data_pointer_); 10035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 10135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org length_to_read = reader_->NextPacket(&packet_data_pointer_); 10235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org VerifyPacketData(1u, length_to_read, 10335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org packet3_, packet_data_pointer_); 10435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 10535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org // Reading another one shall result in 0 bytes: 10635a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org length_to_read = reader_->NextPacket(&packet_data_pointer_); 10735a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org EXPECT_EQ(0, length_to_read); 1084591fbd09f9cb6e83433c49a12dd8524c2806502pkasting@chromium.org EXPECT_EQ(kPacketDataLength, 1094591fbd09f9cb6e83433c49a12dd8524c2806502pkasting@chromium.org static_cast<size_t>(packet_data_pointer_ - packet_data_)); 11035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} 11135a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 11235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org// Test with empty data. 11335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.orgTEST_F(PacketReaderTest, EmptyData) { 11435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org const int kDataLengthInBytes = 0; 115d41f59a23f333b61531045e9ff8cc99f022c5c49andrew@webrtc.org // But don't really try to allocate a zero-length array... 116a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t data[kPacketSizeInBytes]; 117a5f1787f63cb580a50f5a7be98600102454594e2pbos@webrtc.org uint8_t* data_pointer = data; 11835a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org reader_->InitializeReading(data, kDataLengthInBytes, kPacketSizeInBytes); 119d41f59a23f333b61531045e9ff8cc99f022c5c49andrew@webrtc.org EXPECT_EQ(kDataLengthInBytes, reader_->NextPacket(&data_pointer)); 12035a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org // Do it again to make sure nothing changes 121d41f59a23f333b61531045e9ff8cc99f022c5c49andrew@webrtc.org EXPECT_EQ(kDataLengthInBytes, reader_->NextPacket(&data_pointer)); 12235a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} 12335a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org 12435a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} // namespace test 12535a1756502707ffd88069b9ccdc97a80c68c9812kjellander@webrtc.org} // namespace webrtc 126