Bug 1893388 - add gtest. r=media-playback-reviewers,chunmin

Differential Revision: https://phabricator.services.mozilla.com/D209440

dom/media/gtest/TestMediaInfo.cpp

@@ -0,0 +1,36 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MediaInfo.h"
+#include "gtest/gtest.h"
+
+using namespace mozilla;
+
+TEST(TestMediaInfo, CloneVideoInfo)
+{
+  VideoInfo info;
+  info.mDisplay = info.mImage = gfx::IntSize{640, 360};
+  info.mStereoMode = StereoMode::BOTTOM_TOP;
+  info.mRotation = VideoRotation::kDegree_270;
+  info.mColorDepth = gfx::ColorDepth::COLOR_16;
+  info.mColorRange = gfx::ColorRange::FULL;
+
+  UniquePtr<TrackInfo> clone1 = info.Clone();
+  UniquePtr<TrackInfo> clone2 = info.Clone();
+
+  auto* info1 = clone1->GetAsVideoInfo();
+  auto* info2 = clone2->GetAsVideoInfo();
+
+  EXPECT_EQ(info1->mDisplay, info2->mDisplay);
+  EXPECT_EQ(info1->mImage, info2->mImage);
+  EXPECT_EQ(info1->mStereoMode, info2->mStereoMode);
+  EXPECT_EQ(info1->mRotation, info2->mRotation);
+  EXPECT_EQ(info1->mColorDepth, info2->mColorDepth);
+  EXPECT_EQ(info1->mColorRange, info2->mColorRange);
+  // They should have their own media byte buffers which have different address
+  EXPECT_NE(info1->mExtraData.get(), info2->mExtraData.get());
+  EXPECT_NE(info1->mCodecSpecificConfig.get(),
+            info2->mCodecSpecificConfig.get());
+}

dom/media/gtest/moz.build

@@ -53,6 +53,7 @@ UNIFIED_SOURCES += [
     "TestMediaDataDecoder.cpp",
     "TestMediaDataEncoder.cpp",
     "TestMediaEventSource.cpp",
+    "TestMediaInfo.cpp",
     "TestMediaMIMETypes.cpp",
     "TestMediaQueue.cpp",
     "TestMediaSpan.cpp",