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Diffstat (limited to 'third_party/libwebrtc/api/units/frequency_unittest.cc')
| -rw-r--r-- | third_party/libwebrtc/api/units/frequency_unittest.cc | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/units/frequency_unittest.cc b/third_party/libwebrtc/api/units/frequency_unittest.cc new file mode 100644 index 0000000000..1260c2107d --- /dev/null +++ b/third_party/libwebrtc/api/units/frequency_unittest.cc @@ -0,0 +1,161 @@ +/* + * Copyright (c) 2019 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/frequency.h" + +#include <limits> + +#include "test/gtest.h" + +namespace webrtc { +namespace test { +TEST(FrequencyTest, ConstExpr) { + constexpr Frequency kFrequencyZero = Frequency::Zero(); + constexpr Frequency kFrequencyPlusInf = Frequency::PlusInfinity(); + constexpr Frequency kFrequencyMinusInf = Frequency::MinusInfinity(); + static_assert(kFrequencyZero.IsZero(), ""); + static_assert(kFrequencyPlusInf.IsPlusInfinity(), ""); + static_assert(kFrequencyMinusInf.IsMinusInfinity(), ""); + + static_assert(kFrequencyPlusInf > kFrequencyZero, ""); +} + +TEST(FrequencyTest, GetBackSameValues) { + const int64_t kValue = 31; + EXPECT_EQ(Frequency::Hertz(kValue).hertz<int64_t>(), kValue); + EXPECT_EQ(Frequency::Zero().hertz<int64_t>(), 0); +} + +TEST(FrequencyTest, GetDifferentPrefix) { + const int64_t kValue = 30000; + EXPECT_EQ(Frequency::MilliHertz(kValue).hertz<int64_t>(), kValue / 1000); + EXPECT_EQ(Frequency::Hertz(kValue).millihertz(), kValue * 1000); + EXPECT_EQ(Frequency::KiloHertz(kValue).hertz(), kValue * 1000); +} + +TEST(FrequencyTest, IdentityChecks) { + const int64_t kValue = 31; + EXPECT_TRUE(Frequency::Zero().IsZero()); + EXPECT_FALSE(Frequency::Hertz(kValue).IsZero()); + + EXPECT_TRUE(Frequency::PlusInfinity().IsInfinite()); + EXPECT_TRUE(Frequency::MinusInfinity().IsInfinite()); + EXPECT_FALSE(Frequency::Zero().IsInfinite()); + EXPECT_FALSE(Frequency::Hertz(kValue).IsInfinite()); + + EXPECT_FALSE(Frequency::PlusInfinity().IsFinite()); + EXPECT_FALSE(Frequency::MinusInfinity().IsFinite()); + EXPECT_TRUE(Frequency::Hertz(kValue).IsFinite()); + EXPECT_TRUE(Frequency::Zero().IsFinite()); + + EXPECT_TRUE(Frequency::PlusInfinity().IsPlusInfinity()); + EXPECT_FALSE(Frequency::MinusInfinity().IsPlusInfinity()); + + EXPECT_TRUE(Frequency::MinusInfinity().IsMinusInfinity()); + EXPECT_FALSE(Frequency::PlusInfinity().IsMinusInfinity()); +} + +TEST(FrequencyTest, ComparisonOperators) { + const int64_t kSmall = 42; + const int64_t kLarge = 45; + const Frequency small = Frequency::Hertz(kSmall); + const Frequency large = Frequency::Hertz(kLarge); + + EXPECT_EQ(Frequency::Zero(), Frequency::Hertz(0)); + EXPECT_EQ(Frequency::PlusInfinity(), Frequency::PlusInfinity()); + EXPECT_EQ(small, Frequency::Hertz(kSmall)); + EXPECT_LE(small, Frequency::Hertz(kSmall)); + EXPECT_GE(small, Frequency::Hertz(kSmall)); + EXPECT_NE(small, Frequency::Hertz(kLarge)); + EXPECT_LE(small, Frequency::Hertz(kLarge)); + EXPECT_LT(small, Frequency::Hertz(kLarge)); + EXPECT_GE(large, Frequency::Hertz(kSmall)); + EXPECT_GT(large, Frequency::Hertz(kSmall)); + EXPECT_LT(Frequency::Zero(), small); + + EXPECT_GT(Frequency::PlusInfinity(), large); + EXPECT_LT(Frequency::MinusInfinity(), Frequency::Zero()); +} + +TEST(FrequencyTest, Clamping) { + const Frequency upper = Frequency::Hertz(800); + const Frequency lower = Frequency::Hertz(100); + const Frequency under = Frequency::Hertz(100); + const Frequency inside = Frequency::Hertz(500); + const Frequency over = Frequency::Hertz(1000); + EXPECT_EQ(under.Clamped(lower, upper), lower); + EXPECT_EQ(inside.Clamped(lower, upper), inside); + EXPECT_EQ(over.Clamped(lower, upper), upper); + + Frequency mutable_frequency = lower; + mutable_frequency.Clamp(lower, upper); + EXPECT_EQ(mutable_frequency, lower); + mutable_frequency = inside; + mutable_frequency.Clamp(lower, upper); + EXPECT_EQ(mutable_frequency, inside); + mutable_frequency = over; + mutable_frequency.Clamp(lower, upper); + EXPECT_EQ(mutable_frequency, upper); +} + +TEST(FrequencyTest, MathOperations) { + const int64_t kValueA = 457; + const int64_t kValueB = 260; + const Frequency frequency_a = Frequency::Hertz(kValueA); + const Frequency frequency_b = Frequency::Hertz(kValueB); + EXPECT_EQ((frequency_a + frequency_b).hertz<int64_t>(), kValueA + kValueB); + EXPECT_EQ((frequency_a - frequency_b).hertz<int64_t>(), kValueA - kValueB); + + EXPECT_EQ((Frequency::Hertz(kValueA) * kValueB).hertz<int64_t>(), + kValueA * kValueB); + + EXPECT_EQ((frequency_b / 10).hertz<int64_t>(), kValueB / 10); + EXPECT_EQ(frequency_b / frequency_a, static_cast<double>(kValueB) / kValueA); + + Frequency mutable_frequency = Frequency::Hertz(kValueA); + mutable_frequency += Frequency::Hertz(kValueB); + EXPECT_EQ(mutable_frequency, Frequency::Hertz(kValueA + kValueB)); + mutable_frequency -= Frequency::Hertz(kValueB); + EXPECT_EQ(mutable_frequency, Frequency::Hertz(kValueA)); +} +TEST(FrequencyTest, Rounding) { + const Frequency freq_high = Frequency::Hertz(23.976); + EXPECT_EQ(freq_high.hertz(), 24); + EXPECT_EQ(freq_high.RoundDownTo(Frequency::Hertz(1)), Frequency::Hertz(23)); + EXPECT_EQ(freq_high.RoundTo(Frequency::Hertz(1)), Frequency::Hertz(24)); + EXPECT_EQ(freq_high.RoundUpTo(Frequency::Hertz(1)), Frequency::Hertz(24)); + + const Frequency freq_low = Frequency::Hertz(23.4); + EXPECT_EQ(freq_low.hertz(), 23); + EXPECT_EQ(freq_low.RoundDownTo(Frequency::Hertz(1)), Frequency::Hertz(23)); + EXPECT_EQ(freq_low.RoundTo(Frequency::Hertz(1)), Frequency::Hertz(23)); + EXPECT_EQ(freq_low.RoundUpTo(Frequency::Hertz(1)), Frequency::Hertz(24)); +} + +TEST(FrequencyTest, InfinityOperations) { + const double kValue = 267; + const Frequency finite = Frequency::Hertz(kValue); + EXPECT_TRUE((Frequency::PlusInfinity() + finite).IsPlusInfinity()); + EXPECT_TRUE((Frequency::PlusInfinity() - finite).IsPlusInfinity()); + EXPECT_TRUE((finite + Frequency::PlusInfinity()).IsPlusInfinity()); + EXPECT_TRUE((finite - Frequency::MinusInfinity()).IsPlusInfinity()); + + EXPECT_TRUE((Frequency::MinusInfinity() + finite).IsMinusInfinity()); + EXPECT_TRUE((Frequency::MinusInfinity() - finite).IsMinusInfinity()); + EXPECT_TRUE((finite + Frequency::MinusInfinity()).IsMinusInfinity()); + EXPECT_TRUE((finite - Frequency::PlusInfinity()).IsMinusInfinity()); +} + +TEST(UnitConversionTest, TimeDeltaAndFrequency) { + EXPECT_EQ(1 / Frequency::Hertz(50), TimeDelta::Millis(20)); + EXPECT_EQ(1 / TimeDelta::Millis(20), Frequency::Hertz(50)); + EXPECT_EQ(Frequency::KiloHertz(200) * TimeDelta::Millis(2), 400.0); +} +} // namespace test +} // namespace webrtc |