1 files changed, 237 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/units/time_delta_unittest.cc b/third_party/libwebrtc/api/units/time_delta_unittest.cc
new file mode 100644
index 0000000000..51a7aa233a
--- /dev/null
+++ b/third_party/libwebrtc/api/units/time_delta_unittest.cc
@@ -0,0 +1,237 @@
+/*
+ *  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/time_delta.h"
+
+#include <limits>
+
+#include "test/gtest.h"
+
+namespace webrtc {
+namespace test {
+TEST(TimeDeltaTest, ConstExpr) {
+  constexpr int64_t kValue = -12345;
+  constexpr TimeDelta kTimeDeltaZero = TimeDelta::Zero();
+  constexpr TimeDelta kTimeDeltaPlusInf = TimeDelta::PlusInfinity();
+  constexpr TimeDelta kTimeDeltaMinusInf = TimeDelta::MinusInfinity();
+  static_assert(kTimeDeltaZero.IsZero(), "");
+  static_assert(kTimeDeltaPlusInf.IsPlusInfinity(), "");
+  static_assert(kTimeDeltaMinusInf.IsMinusInfinity(), "");
+  static_assert(kTimeDeltaPlusInf.ms_or(-1) == -1, "");
+
+  static_assert(kTimeDeltaPlusInf > kTimeDeltaZero, "");
+
+  constexpr TimeDelta kTimeDeltaMinutes = TimeDelta::Minutes(kValue);
+  constexpr TimeDelta kTimeDeltaSeconds = TimeDelta::Seconds(kValue);
+  constexpr TimeDelta kTimeDeltaMs = TimeDelta::Millis(kValue);
+  constexpr TimeDelta kTimeDeltaUs = TimeDelta::Micros(kValue);
+
+  static_assert(kTimeDeltaMinutes.seconds_or(0) == kValue * 60, "");
+  static_assert(kTimeDeltaSeconds.seconds_or(0) == kValue, "");
+  static_assert(kTimeDeltaMs.ms_or(0) == kValue, "");
+  static_assert(kTimeDeltaUs.us_or(0) == kValue, "");
+}
+
+TEST(TimeDeltaTest, GetBackSameValues) {
+  const int64_t kValue = 499;
+  for (int sign = -1; sign <= 1; ++sign) {
+    int64_t value = kValue * sign;
+    EXPECT_EQ(TimeDelta::Millis(value).ms(), value);
+    EXPECT_EQ(TimeDelta::Micros(value).us(), value);
+    EXPECT_EQ(TimeDelta::Seconds(value).seconds(), value);
+    EXPECT_EQ(TimeDelta::Seconds(value).seconds(), value);
+  }
+  EXPECT_EQ(TimeDelta::Zero().us(), 0);
+}
+
+TEST(TimeDeltaTest, GetDifferentPrefix) {
+  const int64_t kValue = 3000000;
+  EXPECT_EQ(TimeDelta::Micros(kValue).seconds(), kValue / 1000000);
+  EXPECT_EQ(TimeDelta::Millis(kValue).seconds(), kValue / 1000);
+  EXPECT_EQ(TimeDelta::Micros(kValue).ms(), kValue / 1000);
+  EXPECT_EQ(TimeDelta::Minutes(kValue / 60).seconds(), kValue);
+
+  EXPECT_EQ(TimeDelta::Millis(kValue).us(), kValue * 1000);
+  EXPECT_EQ(TimeDelta::Seconds(kValue).ms(), kValue * 1000);
+  EXPECT_EQ(TimeDelta::Seconds(kValue).us(), kValue * 1000000);
+  EXPECT_EQ(TimeDelta::Minutes(kValue / 60).seconds(), kValue);
+}
+
+TEST(TimeDeltaTest, IdentityChecks) {
+  const int64_t kValue = 3000;
+  EXPECT_TRUE(TimeDelta::Zero().IsZero());
+  EXPECT_FALSE(TimeDelta::Millis(kValue).IsZero());
+
+  EXPECT_TRUE(TimeDelta::PlusInfinity().IsInfinite());
+  EXPECT_TRUE(TimeDelta::MinusInfinity().IsInfinite());
+  EXPECT_FALSE(TimeDelta::Zero().IsInfinite());
+  EXPECT_FALSE(TimeDelta::Millis(-kValue).IsInfinite());
+  EXPECT_FALSE(TimeDelta::Millis(kValue).IsInfinite());
+
+  EXPECT_FALSE(TimeDelta::PlusInfinity().IsFinite());
+  EXPECT_FALSE(TimeDelta::MinusInfinity().IsFinite());
+  EXPECT_TRUE(TimeDelta::Millis(-kValue).IsFinite());
+  EXPECT_TRUE(TimeDelta::Millis(kValue).IsFinite());
+  EXPECT_TRUE(TimeDelta::Zero().IsFinite());
+
+  EXPECT_TRUE(TimeDelta::PlusInfinity().IsPlusInfinity());
+  EXPECT_FALSE(TimeDelta::MinusInfinity().IsPlusInfinity());
+
+  EXPECT_TRUE(TimeDelta::MinusInfinity().IsMinusInfinity());
+  EXPECT_FALSE(TimeDelta::PlusInfinity().IsMinusInfinity());
+}
+
+TEST(TimeDeltaTest, ComparisonOperators) {
+  const int64_t kSmall = 450;
+  const int64_t kLarge = 451;
+  const TimeDelta small = TimeDelta::Millis(kSmall);
+  const TimeDelta large = TimeDelta::Millis(kLarge);
+
+  EXPECT_EQ(TimeDelta::Zero(), TimeDelta::Millis(0));
+  EXPECT_EQ(TimeDelta::PlusInfinity(), TimeDelta::PlusInfinity());
+  EXPECT_EQ(small, TimeDelta::Millis(kSmall));
+  EXPECT_LE(small, TimeDelta::Millis(kSmall));
+  EXPECT_GE(small, TimeDelta::Millis(kSmall));
+  EXPECT_NE(small, TimeDelta::Millis(kLarge));
+  EXPECT_LE(small, TimeDelta::Millis(kLarge));
+  EXPECT_LT(small, TimeDelta::Millis(kLarge));
+  EXPECT_GE(large, TimeDelta::Millis(kSmall));
+  EXPECT_GT(large, TimeDelta::Millis(kSmall));
+  EXPECT_LT(TimeDelta::Zero(), small);
+  EXPECT_GT(TimeDelta::Zero(), TimeDelta::Millis(-kSmall));
+  EXPECT_GT(TimeDelta::Zero(), TimeDelta::Millis(-kSmall));
+
+  EXPECT_GT(TimeDelta::PlusInfinity(), large);
+  EXPECT_LT(TimeDelta::MinusInfinity(), TimeDelta::Zero());
+}
+
+TEST(TimeDeltaTest, Clamping) {
+  const TimeDelta upper = TimeDelta::Millis(800);
+  const TimeDelta lower = TimeDelta::Millis(100);
+  const TimeDelta under = TimeDelta::Millis(100);
+  const TimeDelta inside = TimeDelta::Millis(500);
+  const TimeDelta over = TimeDelta::Millis(1000);
+  EXPECT_EQ(under.Clamped(lower, upper), lower);
+  EXPECT_EQ(inside.Clamped(lower, upper), inside);
+  EXPECT_EQ(over.Clamped(lower, upper), upper);
+
+  TimeDelta mutable_delta = lower;
+  mutable_delta.Clamp(lower, upper);
+  EXPECT_EQ(mutable_delta, lower);
+  mutable_delta = inside;
+  mutable_delta.Clamp(lower, upper);
+  EXPECT_EQ(mutable_delta, inside);
+  mutable_delta = over;
+  mutable_delta.Clamp(lower, upper);
+  EXPECT_EQ(mutable_delta, upper);
+}
+
+TEST(TimeDeltaTest, CanBeInititializedFromLargeInt) {
+  const int kMaxInt = std::numeric_limits<int>::max();
+  EXPECT_EQ(TimeDelta::Seconds(kMaxInt).us(),
+            static_cast<int64_t>(kMaxInt) * 1000000);
+  EXPECT_EQ(TimeDelta::Millis(kMaxInt).us(),
+            static_cast<int64_t>(kMaxInt) * 1000);
+}
+
+TEST(TimeDeltaTest, ConvertsToAndFromDouble) {
+  const int64_t kMicros = 17017;
+  const double kNanosDouble = kMicros * 1e3;
+  const double kMicrosDouble = kMicros;
+  const double kMillisDouble = kMicros * 1e-3;
+  const double kSecondsDouble = kMillisDouble * 1e-3;
+
+  EXPECT_EQ(TimeDelta::Micros(kMicros).seconds<double>(), kSecondsDouble);
+  EXPECT_EQ(TimeDelta::Seconds(kSecondsDouble).us(), kMicros);
+
+  EXPECT_EQ(TimeDelta::Micros(kMicros).ms<double>(), kMillisDouble);
+  EXPECT_EQ(TimeDelta::Millis(kMillisDouble).us(), kMicros);
+
+  EXPECT_EQ(TimeDelta::Micros(kMicros).us<double>(), kMicrosDouble);
+  EXPECT_EQ(TimeDelta::Micros(kMicrosDouble).us(), kMicros);
+
+  EXPECT_NEAR(TimeDelta::Micros(kMicros).ns<double>(), kNanosDouble, 1);
+
+  const double kPlusInfinity = std::numeric_limits<double>::infinity();
+  const double kMinusInfinity = -kPlusInfinity;
+
+  EXPECT_EQ(TimeDelta::PlusInfinity().seconds<double>(), kPlusInfinity);
+  EXPECT_EQ(TimeDelta::MinusInfinity().seconds<double>(), kMinusInfinity);
+  EXPECT_EQ(TimeDelta::PlusInfinity().ms<double>(), kPlusInfinity);
+  EXPECT_EQ(TimeDelta::MinusInfinity().ms<double>(), kMinusInfinity);
+  EXPECT_EQ(TimeDelta::PlusInfinity().us<double>(), kPlusInfinity);
+  EXPECT_EQ(TimeDelta::MinusInfinity().us<double>(), kMinusInfinity);
+  EXPECT_EQ(TimeDelta::PlusInfinity().ns<double>(), kPlusInfinity);
+  EXPECT_EQ(TimeDelta::MinusInfinity().ns<double>(), kMinusInfinity);
+
+  EXPECT_TRUE(TimeDelta::Seconds(kPlusInfinity).IsPlusInfinity());
+  EXPECT_TRUE(TimeDelta::Seconds(kMinusInfinity).IsMinusInfinity());
+  EXPECT_TRUE(TimeDelta::Millis(kPlusInfinity).IsPlusInfinity());
+  EXPECT_TRUE(TimeDelta::Millis(kMinusInfinity).IsMinusInfinity());
+  EXPECT_TRUE(TimeDelta::Micros(kPlusInfinity).IsPlusInfinity());
+  EXPECT_TRUE(TimeDelta::Micros(kMinusInfinity).IsMinusInfinity());
+}
+
+TEST(TimeDeltaTest, MathOperations) {
+  const int64_t kValueA = 267;
+  const int64_t kValueB = 450;
+  const TimeDelta delta_a = TimeDelta::Millis(kValueA);
+  const TimeDelta delta_b = TimeDelta::Millis(kValueB);
+  EXPECT_EQ((delta_a + delta_b).ms(), kValueA + kValueB);
+  EXPECT_EQ((delta_a - delta_b).ms(), kValueA - kValueB);
+
+  EXPECT_EQ((delta_b / 10).ms(), kValueB / 10);
+  EXPECT_EQ(delta_b / delta_a, static_cast<double>(kValueB) / kValueA);
+
+  EXPECT_EQ(TimeDelta::Micros(-kValueA).Abs().us(), kValueA);
+  EXPECT_EQ(TimeDelta::Micros(kValueA).Abs().us(), kValueA);
+
+  TimeDelta mutable_delta = TimeDelta::Millis(kValueA);
+  mutable_delta += TimeDelta::Millis(kValueB);
+  EXPECT_EQ(mutable_delta, TimeDelta::Millis(kValueA + kValueB));
+  mutable_delta -= TimeDelta::Millis(kValueB);
+  EXPECT_EQ(mutable_delta, TimeDelta::Millis(kValueA));
+}
+
+TEST(TimeDeltaTest, MultiplyByScalar) {
+  const TimeDelta kValue = TimeDelta::Micros(267);
+  const int64_t kInt64 = 450;
+  const int32_t kInt32 = 123;
+  const size_t kUnsignedInt = 125;
+  const double kFloat = 123.0;
+
+  EXPECT_EQ((kValue * kInt64).us(), kValue.us() * kInt64);
+  EXPECT_EQ(kValue * kInt64, kInt64 * kValue);
+
+  EXPECT_EQ((kValue * kInt32).us(), kValue.us() * kInt32);
+  EXPECT_EQ(kValue * kInt32, kInt32 * kValue);
+
+  EXPECT_EQ((kValue * kUnsignedInt).us(), kValue.us() * int64_t{kUnsignedInt});
+  EXPECT_EQ(kValue * kUnsignedInt, kUnsignedInt * kValue);
+
+  EXPECT_DOUBLE_EQ((kValue * kFloat).us(), kValue.us() * kFloat);
+  EXPECT_EQ(kValue * kFloat, kFloat * kValue);
+}
+
+TEST(TimeDeltaTest, InfinityOperations) {
+  const int64_t kValue = 267;
+  const TimeDelta finite = TimeDelta::Millis(kValue);
+  EXPECT_TRUE((TimeDelta::PlusInfinity() + finite).IsPlusInfinity());
+  EXPECT_TRUE((TimeDelta::PlusInfinity() - finite).IsPlusInfinity());
+  EXPECT_TRUE((finite + TimeDelta::PlusInfinity()).IsPlusInfinity());
+  EXPECT_TRUE((finite - TimeDelta::MinusInfinity()).IsPlusInfinity());
+
+  EXPECT_TRUE((TimeDelta::MinusInfinity() + finite).IsMinusInfinity());
+  EXPECT_TRUE((TimeDelta::MinusInfinity() - finite).IsMinusInfinity());
+  EXPECT_TRUE((finite + TimeDelta::MinusInfinity()).IsMinusInfinity());
+  EXPECT_TRUE((finite - TimeDelta::PlusInfinity()).IsMinusInfinity());
+}
+}  // namespace test
+}  // namespace webrtc