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c1c8b8e836
This adds new constexpr create function for DataSize, DataRate, TimeDelta and Timestamp. The names are capitalized to mirror the naming scheme of the previously constexpr methods (Zero and Infinity create functions). They are also kept longer since they are not expected to be used in complex expressions. Bug: webrtc:9574 Change-Id: I5950548718675050fc5d66699de295455c310861 Reviewed-on: https://webrtc-review.googlesource.com/91161 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Sebastian Jansson <srte@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24218}
127 lines
4.8 KiB
C++
127 lines
4.8 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "api/units/timestamp.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace test {
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TEST(TimestampTest, ConstExpr) {
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constexpr int64_t kValue = 12345;
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constexpr Timestamp kTimestampInf = Timestamp::Infinity();
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static_assert(kTimestampInf.IsInfinite(), "");
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static_assert(kTimestampInf.ms_or(-1) == -1, "");
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constexpr Timestamp kTimestampSeconds = Timestamp::Seconds<kValue>();
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constexpr Timestamp kTimestampMs = Timestamp::Millis<kValue>();
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constexpr Timestamp kTimestampUs = Timestamp::Micros<kValue>();
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static_assert(kTimestampSeconds.seconds_or(0) == kValue, "");
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static_assert(kTimestampMs.ms_or(0) == kValue, "");
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static_assert(kTimestampUs.us_or(0) == kValue, "");
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static_assert(kTimestampMs > kTimestampUs, "");
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EXPECT_EQ(kTimestampSeconds.seconds(), kValue);
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EXPECT_EQ(kTimestampMs.ms(), kValue);
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EXPECT_EQ(kTimestampUs.us(), kValue);
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}
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TEST(TimestampTest, GetBackSameValues) {
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const int64_t kValue = 499;
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EXPECT_EQ(Timestamp::ms(kValue).ms(), kValue);
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EXPECT_EQ(Timestamp::us(kValue).us(), kValue);
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EXPECT_EQ(Timestamp::seconds(kValue).seconds(), kValue);
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}
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TEST(TimestampTest, GetDifferentPrefix) {
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const int64_t kValue = 3000000;
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EXPECT_EQ(Timestamp::us(kValue).seconds(), kValue / 1000000);
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EXPECT_EQ(Timestamp::ms(kValue).seconds(), kValue / 1000);
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EXPECT_EQ(Timestamp::us(kValue).ms(), kValue / 1000);
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EXPECT_EQ(Timestamp::ms(kValue).us(), kValue * 1000);
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EXPECT_EQ(Timestamp::seconds(kValue).ms(), kValue * 1000);
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EXPECT_EQ(Timestamp::seconds(kValue).us(), kValue * 1000000);
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}
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TEST(TimestampTest, IdentityChecks) {
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const int64_t kValue = 3000;
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EXPECT_TRUE(Timestamp::Infinity().IsInfinite());
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EXPECT_FALSE(Timestamp::ms(kValue).IsInfinite());
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EXPECT_FALSE(Timestamp::Infinity().IsFinite());
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EXPECT_TRUE(Timestamp::ms(kValue).IsFinite());
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}
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TEST(TimestampTest, ComparisonOperators) {
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const int64_t kSmall = 450;
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const int64_t kLarge = 451;
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EXPECT_EQ(Timestamp::Infinity(), Timestamp::Infinity());
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EXPECT_GE(Timestamp::Infinity(), Timestamp::Infinity());
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EXPECT_GT(Timestamp::Infinity(), Timestamp::ms(kLarge));
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EXPECT_EQ(Timestamp::ms(kSmall), Timestamp::ms(kSmall));
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EXPECT_LE(Timestamp::ms(kSmall), Timestamp::ms(kSmall));
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EXPECT_GE(Timestamp::ms(kSmall), Timestamp::ms(kSmall));
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EXPECT_NE(Timestamp::ms(kSmall), Timestamp::ms(kLarge));
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EXPECT_LE(Timestamp::ms(kSmall), Timestamp::ms(kLarge));
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EXPECT_LT(Timestamp::ms(kSmall), Timestamp::ms(kLarge));
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EXPECT_GE(Timestamp::ms(kLarge), Timestamp::ms(kSmall));
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EXPECT_GT(Timestamp::ms(kLarge), Timestamp::ms(kSmall));
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}
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TEST(TimestampTest, CanBeInititializedFromLargeInt) {
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const int kMaxInt = std::numeric_limits<int>::max();
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EXPECT_EQ(Timestamp::seconds(kMaxInt).us(),
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static_cast<int64_t>(kMaxInt) * 1000000);
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EXPECT_EQ(Timestamp::ms(kMaxInt).us(), static_cast<int64_t>(kMaxInt) * 1000);
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}
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TEST(TimestampTest, ConvertsToAndFromDouble) {
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const int64_t kMicros = 17017;
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const double kMicrosDouble = kMicros;
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const double kMillisDouble = kMicros * 1e-3;
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const double kSecondsDouble = kMillisDouble * 1e-3;
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EXPECT_EQ(Timestamp::us(kMicros).seconds<double>(), kSecondsDouble);
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EXPECT_EQ(Timestamp::seconds(kSecondsDouble).us(), kMicros);
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EXPECT_EQ(Timestamp::us(kMicros).ms<double>(), kMillisDouble);
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EXPECT_EQ(Timestamp::ms(kMillisDouble).us(), kMicros);
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EXPECT_EQ(Timestamp::us(kMicros).us<double>(), kMicrosDouble);
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EXPECT_EQ(Timestamp::us(kMicrosDouble).us(), kMicros);
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const double kPlusInfinity = std::numeric_limits<double>::infinity();
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EXPECT_EQ(Timestamp::Infinity().seconds<double>(), kPlusInfinity);
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EXPECT_EQ(Timestamp::Infinity().ms<double>(), kPlusInfinity);
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EXPECT_EQ(Timestamp::Infinity().us<double>(), kPlusInfinity);
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EXPECT_TRUE(Timestamp::seconds(kPlusInfinity).IsInfinite());
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EXPECT_TRUE(Timestamp::ms(kPlusInfinity).IsInfinite());
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EXPECT_TRUE(Timestamp::us(kPlusInfinity).IsInfinite());
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}
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TEST(UnitConversionTest, TimestampAndTimeDeltaMath) {
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const int64_t kValueA = 267;
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const int64_t kValueB = 450;
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const Timestamp time_a = Timestamp::ms(kValueA);
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const Timestamp time_b = Timestamp::ms(kValueB);
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const TimeDelta delta_a = TimeDelta::ms(kValueA);
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EXPECT_EQ((time_a - time_b), TimeDelta::ms(kValueA - kValueB));
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EXPECT_EQ((time_b - delta_a), Timestamp::ms(kValueB - kValueA));
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EXPECT_EQ((time_b + delta_a), Timestamp::ms(kValueB + kValueA));
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}
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} // namespace test
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} // namespace webrtc
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