1 files changed, 110 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/units/data_size_unittest.cc b/third_party/libwebrtc/api/units/data_size_unittest.cc
new file mode 100644
index 0000000000..eb8d98c1f0
--- /dev/null
+++ b/third_party/libwebrtc/api/units/data_size_unittest.cc
@@ -0,0 +1,110 @@
+/*
+ *  Copyright (c) 2018 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 "api/units/data_size.h"
+
+#include <limits>
+
+#include "test/gtest.h"
+
+namespace webrtc {
+namespace test {
+
+TEST(DataSizeTest, ConstExpr) {
+  constexpr int64_t kValue = 12345;
+  constexpr DataSize kDataSizeZero = DataSize::Zero();
+  constexpr DataSize kDataSizeInf = DataSize::Infinity();
+  static_assert(kDataSizeZero.IsZero(), "");
+  static_assert(kDataSizeInf.IsInfinite(), "");
+  static_assert(kDataSizeInf.bytes_or(-1) == -1, "");
+  static_assert(kDataSizeInf > kDataSizeZero, "");
+
+  constexpr DataSize kDataSize = DataSize::Bytes(kValue);
+  static_assert(kDataSize.bytes_or(-1) == kValue, "");
+
+  EXPECT_EQ(kDataSize.bytes(), kValue);
+}
+
+TEST(DataSizeTest, GetBackSameValues) {
+  const int64_t kValue = 123 * 8;
+  EXPECT_EQ(DataSize::Bytes(kValue).bytes(), kValue);
+}
+
+TEST(DataSizeTest, IdentityChecks) {
+  const int64_t kValue = 3000;
+  EXPECT_TRUE(DataSize::Zero().IsZero());
+  EXPECT_FALSE(DataSize::Bytes(kValue).IsZero());
+
+  EXPECT_TRUE(DataSize::Infinity().IsInfinite());
+  EXPECT_FALSE(DataSize::Zero().IsInfinite());
+  EXPECT_FALSE(DataSize::Bytes(kValue).IsInfinite());
+
+  EXPECT_FALSE(DataSize::Infinity().IsFinite());
+  EXPECT_TRUE(DataSize::Bytes(kValue).IsFinite());
+  EXPECT_TRUE(DataSize::Zero().IsFinite());
+}
+
+TEST(DataSizeTest, ComparisonOperators) {
+  const int64_t kSmall = 450;
+  const int64_t kLarge = 451;
+  const DataSize small = DataSize::Bytes(kSmall);
+  const DataSize large = DataSize::Bytes(kLarge);
+
+  EXPECT_EQ(DataSize::Zero(), DataSize::Bytes(0));
+  EXPECT_EQ(DataSize::Infinity(), DataSize::Infinity());
+  EXPECT_EQ(small, small);
+  EXPECT_LE(small, small);
+  EXPECT_GE(small, small);
+  EXPECT_NE(small, large);
+  EXPECT_LE(small, large);
+  EXPECT_LT(small, large);
+  EXPECT_GE(large, small);
+  EXPECT_GT(large, small);
+  EXPECT_LT(DataSize::Zero(), small);
+  EXPECT_GT(DataSize::Infinity(), large);
+}
+
+TEST(DataSizeTest, ConvertsToAndFromDouble) {
+  const int64_t kValue = 128;
+  const double kDoubleValue = static_cast<double>(kValue);
+
+  EXPECT_EQ(DataSize::Bytes(kValue).bytes<double>(), kDoubleValue);
+  EXPECT_EQ(DataSize::Bytes(kDoubleValue).bytes(), kValue);
+
+  const double kInfinity = std::numeric_limits<double>::infinity();
+  EXPECT_EQ(DataSize::Infinity().bytes<double>(), kInfinity);
+  EXPECT_TRUE(DataSize::Bytes(kInfinity).IsInfinite());
+}
+
+TEST(DataSizeTest, MathOperations) {
+  const int64_t kValueA = 450;
+  const int64_t kValueB = 267;
+  const DataSize size_a = DataSize::Bytes(kValueA);
+  const DataSize size_b = DataSize::Bytes(kValueB);
+  EXPECT_EQ((size_a + size_b).bytes(), kValueA + kValueB);
+  EXPECT_EQ((size_a - size_b).bytes(), kValueA - kValueB);
+
+  const int32_t kInt32Value = 123;
+  const double kFloatValue = 123.0;
+  EXPECT_EQ((size_a * kValueB).bytes(), kValueA * kValueB);
+  EXPECT_EQ((size_a * kInt32Value).bytes(), kValueA * kInt32Value);
+  EXPECT_EQ((size_a * kFloatValue).bytes(), kValueA * kFloatValue);
+
+  EXPECT_EQ((size_a / 10).bytes(), kValueA / 10);
+  EXPECT_EQ(size_a / size_b, static_cast<double>(kValueA) / kValueB);
+
+  DataSize mutable_size = DataSize::Bytes(kValueA);
+  mutable_size += size_b;
+  EXPECT_EQ(mutable_size.bytes(), kValueA + kValueB);
+  mutable_size -= size_a;
+  EXPECT_EQ(mutable_size.bytes(), kValueB);
+}
+}  // namespace test
+}  // namespace webrtc