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| 1 /* |
| 2 * libjingle |
| 3 * Copyright 2015 Google Inc. |
| 4 * |
| 5 * Redistribution and use in source and binary forms, with or without |
| 6 * modification, are permitted provided that the following conditions are met: |
| 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright notice, |
| 9 * this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 * this list of conditions and the following disclaimer in the documentation |
| 12 * and/or other materials provided with the distribution. |
| 13 * 3. The name of the author may not be used to endorse or promote products |
| 14 * derived from this software without specific prior written permission. |
| 15 * |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 */ |
| 27 |
| 28 #include "testing/gtest/include/gtest/gtest.h" |
| 29 |
| 30 #include "talk/media/webrtc/webrtcmediaengine.h" |
| 31 |
| 32 namespace cricket { |
| 33 namespace { |
| 34 |
| 35 std::vector<RtpHeaderExtension> MakeUniqueExtensions() { |
| 36 std::vector<RtpHeaderExtension> result; |
| 37 char name[] = "a"; |
| 38 for (int i = 0; i < 7; ++i) { |
| 39 result.push_back(RtpHeaderExtension(name, 1 + i)); |
| 40 name[0]++; |
| 41 result.push_back(RtpHeaderExtension(name, 14 - i)); |
| 42 name[0]++; |
| 43 } |
| 44 return result; |
| 45 } |
| 46 |
| 47 std::vector<RtpHeaderExtension> MakeRedundantExtensions() { |
| 48 std::vector<RtpHeaderExtension> result; |
| 49 char name[] = "a"; |
| 50 for (int i = 0; i < 7; ++i) { |
| 51 result.push_back(RtpHeaderExtension(name, 1 + i)); |
| 52 result.push_back(RtpHeaderExtension(name, 14 - i)); |
| 53 name[0]++; |
| 54 } |
| 55 return result; |
| 56 } |
| 57 |
| 58 bool SupportedExtensions1(const std::string& name) { |
| 59 return name == "c" || name == "i"; |
| 60 } |
| 61 |
| 62 bool SupportedExtensions2(const std::string& name) { |
| 63 return name != "a" && name != "n"; |
| 64 } |
| 65 |
| 66 bool IsSorted(const std::vector<webrtc::RtpExtension>& extensions) { |
| 67 const std::string* last = nullptr; |
| 68 for (const auto& extension : extensions) { |
| 69 if (last && *last > extension.name) { |
| 70 return false; |
| 71 } |
| 72 last = &extension.name; |
| 73 } |
| 74 return true; |
| 75 } |
| 76 } // namespace |
| 77 |
| 78 TEST(WebRtcMediaEngineTest, ValidateRtpExtensions_EmptyList) { |
| 79 std::vector<RtpHeaderExtension> extensions; |
| 80 EXPECT_TRUE(ValidateRtpExtensions(extensions)); |
| 81 } |
| 82 |
| 83 TEST(WebRtcMediaEngineTest, ValidateRtpExtensions_AllGood) { |
| 84 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 85 EXPECT_TRUE(ValidateRtpExtensions(extensions)); |
| 86 } |
| 87 |
| 88 TEST(WebRtcMediaEngineTest, ValidateRtpExtensions_OutOfRangeId_Low) { |
| 89 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 90 extensions.push_back(RtpHeaderExtension("foo", 0)); |
| 91 EXPECT_FALSE(ValidateRtpExtensions(extensions)); |
| 92 } |
| 93 |
| 94 TEST(WebRtcMediaEngineTest, ValidateRtpExtensions_OutOfRangeId_High) { |
| 95 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 96 extensions.push_back(RtpHeaderExtension("foo", 15)); |
| 97 EXPECT_FALSE(ValidateRtpExtensions(extensions)); |
| 98 } |
| 99 |
| 100 TEST(WebRtcMediaEngineTest, ValidateRtpExtensions_OverlappingIds_StartOfSet) { |
| 101 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 102 extensions.push_back(RtpHeaderExtension("foo", 1)); |
| 103 EXPECT_FALSE(ValidateRtpExtensions(extensions)); |
| 104 } |
| 105 |
| 106 TEST(WebRtcMediaEngineTest, ValidateRtpExtensions_OverlappingIds_EndOfSet) { |
| 107 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 108 extensions.push_back(RtpHeaderExtension("foo", 14)); |
| 109 EXPECT_FALSE(ValidateRtpExtensions(extensions)); |
| 110 } |
| 111 |
| 112 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_EmptyList) { |
| 113 std::vector<RtpHeaderExtension> extensions; |
| 114 std::vector<webrtc::RtpExtension> filtered = |
| 115 FilterRtpExtensions(extensions, SupportedExtensions1, true); |
| 116 EXPECT_EQ(0, filtered.size()); |
| 117 } |
| 118 |
| 119 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_IncludeOnlySupported) { |
| 120 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 121 std::vector<webrtc::RtpExtension> filtered = |
| 122 FilterRtpExtensions(extensions, SupportedExtensions1, false); |
| 123 EXPECT_EQ(2, filtered.size()); |
| 124 EXPECT_EQ("c", filtered[0].name); |
| 125 EXPECT_EQ("i", filtered[1].name); |
| 126 } |
| 127 |
| 128 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_SortedByName_1) { |
| 129 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 130 std::vector<webrtc::RtpExtension> filtered = |
| 131 FilterRtpExtensions(extensions, SupportedExtensions2, false); |
| 132 EXPECT_EQ(12, filtered.size()); |
| 133 EXPECT_TRUE(IsSorted(filtered)); |
| 134 } |
| 135 |
| 136 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_SortedByName_2) { |
| 137 std::vector<RtpHeaderExtension> extensions = MakeUniqueExtensions(); |
| 138 std::vector<webrtc::RtpExtension> filtered = |
| 139 FilterRtpExtensions(extensions, SupportedExtensions2, true); |
| 140 EXPECT_EQ(12, filtered.size()); |
| 141 EXPECT_TRUE(IsSorted(filtered)); |
| 142 } |
| 143 |
| 144 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_DontRemoveRedundant) { |
| 145 std::vector<RtpHeaderExtension> extensions = MakeRedundantExtensions(); |
| 146 std::vector<webrtc::RtpExtension> filtered = |
| 147 FilterRtpExtensions(extensions, SupportedExtensions2, false); |
| 148 EXPECT_EQ(12, filtered.size()); |
| 149 EXPECT_TRUE(IsSorted(filtered)); |
| 150 EXPECT_EQ(filtered[0].name, filtered[1].name); |
| 151 } |
| 152 |
| 153 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundant) { |
| 154 std::vector<RtpHeaderExtension> extensions = MakeRedundantExtensions(); |
| 155 std::vector<webrtc::RtpExtension> filtered = |
| 156 FilterRtpExtensions(extensions, SupportedExtensions2, true); |
| 157 EXPECT_EQ(6, filtered.size()); |
| 158 EXPECT_TRUE(IsSorted(filtered)); |
| 159 EXPECT_NE(filtered[0].name, filtered[1].name); |
| 160 } |
| 161 |
| 162 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantBwe_1) { |
| 163 std::vector<RtpHeaderExtension> extensions; |
| 164 extensions.push_back( |
| 165 RtpHeaderExtension(kRtpTransportSequenceNumberHeaderExtension, 3)); |
| 166 extensions.push_back( |
| 167 RtpHeaderExtension(kRtpTimestampOffsetHeaderExtension, 9)); |
| 168 extensions.push_back( |
| 169 RtpHeaderExtension(kRtpAbsoluteSenderTimeHeaderExtension, 6)); |
| 170 extensions.push_back( |
| 171 RtpHeaderExtension(kRtpTransportSequenceNumberHeaderExtension, 1)); |
| 172 extensions.push_back( |
| 173 RtpHeaderExtension(kRtpTimestampOffsetHeaderExtension, 14)); |
| 174 std::vector<webrtc::RtpExtension> filtered = |
| 175 FilterRtpExtensions(extensions, SupportedExtensions2, true); |
| 176 EXPECT_EQ(1, filtered.size()); |
| 177 EXPECT_EQ(kRtpTransportSequenceNumberHeaderExtension, filtered[0].name); |
| 178 } |
| 179 |
| 180 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantBwe_2) { |
| 181 std::vector<RtpHeaderExtension> extensions; |
| 182 extensions.push_back( |
| 183 RtpHeaderExtension(kRtpTimestampOffsetHeaderExtension, 1)); |
| 184 extensions.push_back( |
| 185 RtpHeaderExtension(kRtpAbsoluteSenderTimeHeaderExtension, 14)); |
| 186 extensions.push_back( |
| 187 RtpHeaderExtension(kRtpTimestampOffsetHeaderExtension, 7)); |
| 188 std::vector<webrtc::RtpExtension> filtered = |
| 189 FilterRtpExtensions(extensions, SupportedExtensions2, true); |
| 190 EXPECT_EQ(1, filtered.size()); |
| 191 EXPECT_EQ(kRtpAbsoluteSenderTimeHeaderExtension, filtered[0].name); |
| 192 } |
| 193 |
| 194 TEST(WebRtcMediaEngineTest, FilterRtpExtensions_RemoveRedundantBwe_3) { |
| 195 std::vector<RtpHeaderExtension> extensions; |
| 196 extensions.push_back( |
| 197 RtpHeaderExtension(kRtpTimestampOffsetHeaderExtension, 2)); |
| 198 extensions.push_back( |
| 199 RtpHeaderExtension(kRtpTimestampOffsetHeaderExtension, 14)); |
| 200 std::vector<webrtc::RtpExtension> filtered = |
| 201 FilterRtpExtensions(extensions, SupportedExtensions2, true); |
| 202 EXPECT_EQ(1, filtered.size()); |
| 203 EXPECT_EQ(kRtpTimestampOffsetHeaderExtension, filtered[0].name); |
| 204 } |
| 205 } // namespace cricket |
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