Pass audio to AudioEncoder::Encode() in an ArrayView

webrtc/base/array_view_unittest.cc

 /*
  *  Copyright 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.
  */
 
@@ skipping 196 matching lines @@
     ++i;
   }
   i = 0;
   for (auto& e : ArrayView<const char>(av)) {
     EXPECT_EQ(arr + i, &e);
     // e = 'q' + i;  // Compile error, because e is a const char&.
     ++i;
   }
 }
 
+TEST(ArrayViewTest, TestEmpty) {
+  EXPECT_TRUE(ArrayView<int>().empty());
+  const int a[] = {1, 2, 3};
+  EXPECT_FALSE(ArrayView<const int>(a).empty());
+}
+
+TEST(ArrayViewTest, TestCompare) {

[hlundin-webrtc, 2015/11/05 15:22:28]

Is it conceivable to have two ArrayViews with the same data pointer but
different lengths? If so, you're not testing that case here.

[kwiberg-webrtc, 2015/11/05 19:00:07]

Yes, that's of course entirely possible. Will add test for that, and for the
case where the lengths are the same.

+  int a[] = {1, 2, 3};
+  int b[] = {1, 2, 3};
+  EXPECT_EQ(ArrayView<int>(a), ArrayView<int>(a));
+  EXPECT_EQ(ArrayView<int>(), ArrayView<int>());
+  EXPECT_NE(ArrayView<int>(a), ArrayView<int>(b));
+  EXPECT_NE(ArrayView<int>(a), ArrayView<int>());
+}
+
 }  // namespace rtc