Reland of Simplify and extend RtpHeaderExtensionMap

webrtc/modules/rtp_rtcp/source/rtp_header_extension_unittest.cc

 /*
  *  Copyright (c) 2012 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/include/rtp_rtcp_defines.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_header_extension.h"
+#include "webrtc/modules/rtp_rtcp/source/rtp_header_extensions.h"
 #include "webrtc/test/gtest.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 
-class RtpHeaderExtensionTest : public ::testing::Test {
- protected:
-  RtpHeaderExtensionTest() {}
-  ~RtpHeaderExtensionTest() {}
+TEST(RtpHeaderExtensionTest, RegisterByType) {
+  RtpHeaderExtensionMap map;
+  EXPECT_FALSE(map.IsRegistered(TransmissionOffset::kId));
 
-  RtpHeaderExtensionMap map_;
-  static const uint8_t kId;
-};
+  EXPECT_TRUE(map.RegisterByType(3, TransmissionOffset::kId));
 
-const uint8_t RtpHeaderExtensionTest::kId = 3;
-
-TEST_F(RtpHeaderExtensionTest, Register) {
-  EXPECT_EQ(0, map_.Size());
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_TRUE(map_.IsRegistered(kRtpExtensionTransmissionTimeOffset));
-  EXPECT_EQ(1, map_.Size());
-  EXPECT_EQ(0, map_.Deregister(kRtpExtensionTransmissionTimeOffset));
-  EXPECT_EQ(0, map_.Size());
+  EXPECT_TRUE(map.IsRegistered(TransmissionOffset::kId));
+  EXPECT_EQ(3, map.GetId(TransmissionOffset::kId));
+  EXPECT_EQ(TransmissionOffset::kId, map.GetType(3));
 }
 
-TEST_F(RtpHeaderExtensionTest, RegisterIllegalArg) {
-  // Valid range for id: [1-14].
-  EXPECT_EQ(-1, map_.Register(kRtpExtensionTransmissionTimeOffset, 0));
-  EXPECT_EQ(-1, map_.Register(kRtpExtensionTransmissionTimeOffset, 15));
+TEST(RtpHeaderExtensionTest, RegisterByUri) {
+  RtpHeaderExtensionMap map;
+
+  EXPECT_TRUE(map.RegisterByUri(3, TransmissionOffset::kUri));
+
+  EXPECT_TRUE(map.IsRegistered(TransmissionOffset::kId));
+  EXPECT_EQ(3, map.GetId(TransmissionOffset::kId));
+  EXPECT_EQ(TransmissionOffset::kId, map.GetType(3));
 }
 
-TEST_F(RtpHeaderExtensionTest, Idempotent) {
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_EQ(0, map_.Deregister(kRtpExtensionTransmissionTimeOffset));
-  EXPECT_EQ(0, map_.Deregister(kRtpExtensionTransmissionTimeOffset));
+TEST(RtpHeaderExtensionTest, RegisterWithTrait) {
+  RtpHeaderExtensionMap map;
+
+  EXPECT_TRUE(map.Register<TransmissionOffset>(3));
+
+  EXPECT_TRUE(map.IsRegistered(TransmissionOffset::kId));
+  EXPECT_EQ(3, map.GetId(TransmissionOffset::kId));
+  EXPECT_EQ(TransmissionOffset::kId, map.GetType(3));
 }
 
-TEST_F(RtpHeaderExtensionTest, NonUniqueId) {
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_EQ(-1, map_.Register(kRtpExtensionAudioLevel, kId));
+TEST(RtpHeaderExtensionTest, RegisterDuringContruction) {
+  const RtpHeaderExtensionMap map = {{TransmissionOffset::kUri, 1},
+                                     {AbsoluteSendTime::kUri, 3}};
+
+  EXPECT_EQ(1, map.GetId(TransmissionOffset::kId));
+  EXPECT_EQ(3, map.GetId(AbsoluteSendTime::kId));
 }
 
-TEST_F(RtpHeaderExtensionTest, GetTotalLength) {
-  EXPECT_EQ(0u, map_.GetTotalLengthInBytes());
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_EQ(kRtpOneByteHeaderLength + kTransmissionTimeOffsetLength,
-            map_.GetTotalLengthInBytes());
+TEST(RtpHeaderExtensionTest, RegisterIllegalArg) {
+  RtpHeaderExtensionMap map;
+  // Valid range for id: [1-14].
+  EXPECT_FALSE(map.Register<TransmissionOffset>(0));
+  EXPECT_FALSE(map.Register<TransmissionOffset>(15));
 }
 
-TEST_F(RtpHeaderExtensionTest, GetType) {
-  RTPExtensionType typeOut;
-  EXPECT_EQ(-1, map_.GetType(kId, &typeOut));
+TEST(RtpHeaderExtensionTest, Idempotent) {
+  RtpHeaderExtensionMap map;
 
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_EQ(0, map_.GetType(kId, &typeOut));
-  EXPECT_EQ(kRtpExtensionTransmissionTimeOffset, typeOut);
+  EXPECT_TRUE(map.Register<TransmissionOffset>(3));
+  EXPECT_TRUE(map.Register<TransmissionOffset>(3));
+
+  map.Deregister(TransmissionOffset::kId);
+  map.Deregister(TransmissionOffset::kId);
 }
 
-TEST_F(RtpHeaderExtensionTest, GetId) {
-  uint8_t idOut;
-  EXPECT_EQ(-1, map_.GetId(kRtpExtensionTransmissionTimeOffset, &idOut));
+TEST(RtpHeaderExtensionTest, NonUniqueId) {
+  RtpHeaderExtensionMap map;
+  EXPECT_TRUE(map.Register<TransmissionOffset>(3));
 
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_EQ(0, map_.GetId(kRtpExtensionTransmissionTimeOffset, &idOut));
-  EXPECT_EQ(kId, idOut);
+  EXPECT_FALSE(map.Register<AudioLevel>(3));
+  EXPECT_TRUE(map.Register<AudioLevel>(4));
 }
 
-TEST_F(RtpHeaderExtensionTest, GetCopy) {
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-
-  RtpHeaderExtensionMap mapOut;
-  map_.GetCopy(&mapOut);
-  EXPECT_EQ(1, mapOut.Size());
-  EXPECT_EQ(kId, mapOut.GetId(kRtpExtensionTransmissionTimeOffset));
+TEST(RtpHeaderExtensionTest, GetTotalLength) {
+  RtpHeaderExtensionMap map;
+  EXPECT_EQ(0u, map.GetTotalLengthInBytes());
+  EXPECT_TRUE(map.Register<TransmissionOffset>(3));
+  EXPECT_EQ(kRtpOneByteHeaderLength + (TransmissionOffset::kValueSizeBytes + 1),
+            map.GetTotalLengthInBytes());
 }
 
-TEST_F(RtpHeaderExtensionTest, Erase) {
-  EXPECT_EQ(0, map_.Register(kRtpExtensionTransmissionTimeOffset, kId));
-  EXPECT_EQ(1, map_.Size());
-  map_.Erase();
-  EXPECT_EQ(0, map_.Size());
+TEST(RtpHeaderExtensionTest, GetType) {
+  RtpHeaderExtensionMap map;
+  EXPECT_EQ(RtpHeaderExtensionMap::kInvalidType, map.GetType(3));
+  EXPECT_TRUE(map.Register<TransmissionOffset>(3));
+
+  EXPECT_EQ(TransmissionOffset::kId, map.GetType(3));
 }
+
+TEST(RtpHeaderExtensionTest, GetId) {
+  RtpHeaderExtensionMap map;
+  EXPECT_EQ(RtpHeaderExtensionMap::kInvalidId,
+            map.GetId(TransmissionOffset::kId));
+  EXPECT_TRUE(map.Register<TransmissionOffset>(3));
+
+  EXPECT_EQ(3, map.GetId(TransmissionOffset::kId));
+}
+
 }  // namespace webrtc