1 files changed, 337 insertions, 0 deletions
diff --git a/third_party/libwebrtc/media/engine/webrtc_media_engine_unittest.cc b/third_party/libwebrtc/media/engine/webrtc_media_engine_unittest.cc
new file mode 100644
index 0000000000..4615f03deb
--- /dev/null
+++ b/third_party/libwebrtc/media/engine/webrtc_media_engine_unittest.cc
@@ -0,0 +1,337 @@
+/*
+ *  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 "media/engine/webrtc_media_engine.h"
+
+#include <memory>
+#include <string>
+#include <utility>
+
+#include "media/engine/webrtc_media_engine_defaults.h"
+#include "test/gtest.h"
+#include "test/scoped_key_value_config.h"
+
+using webrtc::RtpExtension;
+
+namespace cricket {
+namespace {
+
+std::vector<RtpExtension> MakeUniqueExtensions() {
+  std::vector<RtpExtension> result;
+  char name[] = "a";
+  for (int i = 0; i < 7; ++i) {
+    result.push_back(RtpExtension(name, 1 + i));
+    name[0]++;
+    result.push_back(RtpExtension(name, 255 - i));
+    name[0]++;
+  }
+  return result;
+}
+
+std::vector<RtpExtension> MakeRedundantExtensions() {
+  std::vector<RtpExtension> result;
+  char name[] = "a";
+  for (int i = 0; i < 7; ++i) {
+    result.push_back(RtpExtension(name, 1 + i));
+    result.push_back(RtpExtension(name, 255 - i));
+    name[0]++;
+  }
+  return result;
+}
+
+bool SupportedExtensions1(absl::string_view name) {
+  return name == "c" || name == "i";
+}
+
+bool SupportedExtensions2(absl::string_view name) {
+  return name != "a" && name != "n";
+}
+
+bool IsSorted(const std::vector<webrtc::RtpExtension>& extensions) {
+  const std::string* last = nullptr;
+  for (const auto& extension : extensions) {
+    if (last && *last > extension.uri) {
+      return false;
+    }
+    last = &extension.uri;
+  }
+  return true;
+}
+}  // namespace
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsEmptyList) {
+  std::vector<RtpExtension> extensions;
+  EXPECT_TRUE(ValidateRtpExtensions(extensions, {}));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsAllGood) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  EXPECT_TRUE(ValidateRtpExtensions(extensions, {}));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsOutOfRangeId_Low) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  extensions.push_back(RtpExtension("foo", 0));
+  EXPECT_FALSE(ValidateRtpExtensions(extensions, {}));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsOutOfRangeIdHigh) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  extensions.push_back(RtpExtension("foo", 256));
+  EXPECT_FALSE(ValidateRtpExtensions(extensions, {}));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsOverlappingIdsStartOfSet) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  extensions.push_back(RtpExtension("foo", 1));
+  EXPECT_FALSE(ValidateRtpExtensions(extensions, {}));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsOverlappingIdsEndOfSet) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  extensions.push_back(RtpExtension("foo", 255));
+  EXPECT_FALSE(ValidateRtpExtensions(extensions, {}));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsEmptyToEmpty) {
+  std::vector<RtpExtension> extensions;
+  EXPECT_TRUE(ValidateRtpExtensions(extensions, extensions));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsNoChange) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  EXPECT_TRUE(ValidateRtpExtensions(extensions, extensions));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsChangeIdNotUrl) {
+  std::vector<RtpExtension> old_extensions = MakeUniqueExtensions();
+  std::vector<RtpExtension> new_extensions = old_extensions;
+  std::swap(new_extensions[0].id, new_extensions[1].id);
+
+  EXPECT_FALSE(ValidateRtpExtensions(new_extensions, old_extensions));
+}
+
+TEST(WebRtcMediaEngineTest, ValidateRtpExtensionsChangeIdForUrl) {
+  std::vector<RtpExtension> old_extensions = MakeUniqueExtensions();
+  std::vector<RtpExtension> new_extensions = old_extensions;
+  // Change first extension to something not generated by MakeUniqueExtensions
+  new_extensions[0].id = 123;
+
+  EXPECT_FALSE(ValidateRtpExtensions(new_extensions, old_extensions));
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsEmptyList) {
+  std::vector<RtpExtension> extensions;
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions1, true, trials);
+  EXPECT_EQ(0u, filtered.size());
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsIncludeOnlySupported) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions1, false, trials);
+  EXPECT_EQ(2u, filtered.size());
+  EXPECT_EQ("c", filtered[0].uri);
+  EXPECT_EQ("i", filtered[1].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsSortedByName1) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, false, trials);
+  EXPECT_EQ(12u, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsSortedByName2) {
+  std::vector<RtpExtension> extensions = MakeUniqueExtensions();
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(12u, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsDontRemoveRedundant) {
+  std::vector<RtpExtension> extensions = MakeRedundantExtensions();
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, false, trials);
+  EXPECT_EQ(12u, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+  EXPECT_EQ(filtered[0].uri, filtered[1].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsRemoveRedundant) {
+  std::vector<RtpExtension> extensions = MakeRedundantExtensions();
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(6u, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+  EXPECT_NE(filtered[0].uri, filtered[1].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsRemoveRedundantEncrypted1) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(webrtc::RtpExtension("b", 1));
+  extensions.push_back(webrtc::RtpExtension("b", 2, true));
+  extensions.push_back(webrtc::RtpExtension("c", 3));
+  extensions.push_back(webrtc::RtpExtension("b", 4));
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(3u, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+  EXPECT_EQ(filtered[0].uri, filtered[1].uri);
+  EXPECT_NE(filtered[0].encrypt, filtered[1].encrypt);
+  EXPECT_NE(filtered[0].uri, filtered[2].uri);
+  EXPECT_NE(filtered[1].uri, filtered[2].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsRemoveRedundantEncrypted2) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(webrtc::RtpExtension("b", 1, true));
+  extensions.push_back(webrtc::RtpExtension("b", 2));
+  extensions.push_back(webrtc::RtpExtension("c", 3));
+  extensions.push_back(webrtc::RtpExtension("b", 4));
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(3u, filtered.size());
+  EXPECT_TRUE(IsSorted(filtered));
+  EXPECT_EQ(filtered[0].uri, filtered[1].uri);
+  EXPECT_NE(filtered[0].encrypt, filtered[1].encrypt);
+  EXPECT_NE(filtered[0].uri, filtered[2].uri);
+  EXPECT_NE(filtered[1].uri, filtered[2].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsRemoveRedundantBwe1) {
+  webrtc::test::ScopedKeyValueConfig trials(
+      "WebRTC-FilterAbsSendTimeExtension/Enabled/");
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 3));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 9));
+  extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 6));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 1));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 14));
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(1u, filtered.size());
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[0].uri);
+}
+
+TEST(WebRtcMediaEngineTest,
+     FilterRtpExtensionsRemoveRedundantBwe1KeepAbsSendTime) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 3));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 9));
+  extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 6));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 1));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 14));
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(2u, filtered.size());
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[0].uri);
+  EXPECT_EQ(RtpExtension::kAbsSendTimeUri, filtered[1].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsRemoveRedundantBweEncrypted1) {
+  webrtc::test::ScopedKeyValueConfig trials(
+      "WebRTC-FilterAbsSendTimeExtension/Enabled/");
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 3));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 4, true));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 9));
+  extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 6));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 1));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 2, true));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 14));
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(2u, filtered.size());
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[0].uri);
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[1].uri);
+  EXPECT_NE(filtered[0].encrypt, filtered[1].encrypt);
+}
+
+TEST(WebRtcMediaEngineTest,
+     FilterRtpExtensionsRemoveRedundantBweEncrypted1KeepAbsSendTime) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 3));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 4, true));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 9));
+  extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 6));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 1));
+  extensions.push_back(
+      RtpExtension(RtpExtension::kTransportSequenceNumberUri, 2, true));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 14));
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(3u, filtered.size());
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[0].uri);
+  EXPECT_EQ(RtpExtension::kTransportSequenceNumberUri, filtered[1].uri);
+  EXPECT_EQ(RtpExtension::kAbsSendTimeUri, filtered[2].uri);
+  EXPECT_NE(filtered[0].encrypt, filtered[1].encrypt);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsRemoveRedundantBwe2) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 1));
+  extensions.push_back(RtpExtension(RtpExtension::kAbsSendTimeUri, 14));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 7));
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(1u, filtered.size());
+  EXPECT_EQ(RtpExtension::kAbsSendTimeUri, filtered[0].uri);
+}
+
+TEST(WebRtcMediaEngineTest, FilterRtpExtensionsRemoveRedundantBwe3) {
+  std::vector<RtpExtension> extensions;
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 2));
+  extensions.push_back(RtpExtension(RtpExtension::kTimestampOffsetUri, 14));
+  webrtc::test::ScopedKeyValueConfig trials;
+  std::vector<webrtc::RtpExtension> filtered =
+      FilterRtpExtensions(extensions, SupportedExtensions2, true, trials);
+  EXPECT_EQ(1u, filtered.size());
+  EXPECT_EQ(RtpExtension::kTimestampOffsetUri, filtered[0].uri);
+}
+
+TEST(WebRtcMediaEngineTest, Create) {
+  MediaEngineDependencies deps;
+  webrtc::SetMediaEngineDefaults(&deps);
+  webrtc::test::ScopedKeyValueConfig trials;
+  deps.trials = &trials;
+
+  std::unique_ptr<MediaEngineInterface> engine =
+      CreateMediaEngine(std::move(deps));
+
+  EXPECT_TRUE(engine);
+}
+
+}  // namespace cricket