| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #endregion |
| |
| using System; |
| using System.Runtime.InteropServices; |
| using Grpc.Core.Internal; |
| using Grpc.Core.Utils; |
| using NUnit.Framework; |
| |
| namespace Grpc.Core.Internal.Tests |
| { |
| public class TimespecTest |
| { |
| [Test] |
| public void Now_IsInUtc() |
| { |
| Assert.AreEqual(DateTimeKind.Utc, Timespec.Now.ToDateTime().Kind); |
| } |
| |
| [Test] |
| public void Now_AgreesWithUtcNow() |
| { |
| var timespec = Timespec.Now; |
| var utcNow = DateTime.UtcNow; |
| |
| TimeSpan difference = utcNow - timespec.ToDateTime(); |
| |
| // This test is inherently a race - but the two timestamps |
| // should really be way less that a minute apart. |
| Assert.IsTrue(difference.TotalSeconds < 60); |
| } |
| |
| [Test] |
| public void InfFutureMatchesNativeValue() |
| { |
| Assert.AreEqual(Timespec.NativeInfFuture, Timespec.InfFuture); |
| } |
| |
| [Test] |
| public void InfPastMatchesNativeValue() |
| { |
| Assert.AreEqual(Timespec.NativeInfPast, Timespec.InfPast); |
| } |
| |
| [Test] |
| public void TimespecSizeIsNativeSize() |
| { |
| #pragma warning disable 0618 |
| // We need to use the obsolete non-generic version of Marshal.SizeOf because the generic version is not available in net45 |
| Assert.AreEqual(Timespec.NativeSize, Marshal.SizeOf(typeof(Timespec))); |
| #pragma warning restore 0618 |
| } |
| |
| [Test] |
| public void ToDateTime() |
| { |
| Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc), |
| new Timespec(0, 0).ToDateTime()); |
| |
| Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 10, DateTimeKind.Utc).AddTicks(50), |
| new Timespec(10, 5000).ToDateTime()); |
| |
| Assert.AreEqual(new DateTime(2015, 7, 21, 4, 21, 48, DateTimeKind.Utc), |
| new Timespec(1437452508, 0).ToDateTime()); |
| |
| // before epoch |
| Assert.AreEqual(new DateTime(1969, 12, 31, 23, 59, 55, DateTimeKind.Utc).AddTicks(10), |
| new Timespec(-5, 1000).ToDateTime()); |
| |
| // infinity |
| Assert.AreEqual(DateTime.MaxValue, Timespec.InfFuture.ToDateTime()); |
| Assert.AreEqual(DateTime.MinValue, Timespec.InfPast.ToDateTime()); |
| |
| // nanos are rounded to ticks are rounded up |
| Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddTicks(1), |
| new Timespec(0, 99).ToDateTime()); |
| |
| // Illegal inputs |
| Assert.Throws(typeof(InvalidOperationException), |
| () => new Timespec(0, -2).ToDateTime()); |
| Assert.Throws(typeof(InvalidOperationException), |
| () => new Timespec(0, 1000 * 1000 * 1000).ToDateTime()); |
| Assert.Throws(typeof(InvalidOperationException), |
| () => new Timespec(0, 0, ClockType.Monotonic).ToDateTime()); |
| } |
| |
| [Test] |
| public void ToDateTime_ReturnsUtc() |
| { |
| Assert.AreEqual(DateTimeKind.Utc, new Timespec(1437452508, 0).ToDateTime().Kind); |
| Assert.AreNotEqual(DateTimeKind.Unspecified, new Timespec(1437452508, 0).ToDateTime().Kind); |
| } |
| |
| [Test] |
| public void ToDateTime_Overflow() |
| { |
| var timespec = new Timespec(long.MaxValue - 100, 0); |
| Assert.AreNotEqual(Timespec.InfFuture, timespec); |
| Assert.AreEqual(DateTime.MaxValue, timespec.ToDateTime()); |
| |
| Assert.AreEqual(DateTime.MinValue, new Timespec(long.MinValue + 100, 0).ToDateTime()); |
| } |
| |
| [Test] |
| public void ToDateTime_OutOfDateTimeRange() |
| { |
| // DateTime range goes up to year 9999, 20000 years from now should |
| // be out of range. |
| long seconds = 20000L * 365L * 24L * 3600L; |
| |
| var timespec = new Timespec(seconds, 0); |
| Assert.AreNotEqual(Timespec.InfFuture, timespec); |
| Assert.AreEqual(DateTime.MaxValue, timespec.ToDateTime()); |
| |
| Assert.AreEqual(DateTime.MinValue, new Timespec(-seconds, 0).ToDateTime()); |
| } |
| |
| [Test] |
| public void FromDateTime() |
| { |
| Assert.AreEqual(new Timespec(0, 0), |
| Timespec.FromDateTime(new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc))); |
| |
| Assert.AreEqual(new Timespec(10, 5000), |
| Timespec.FromDateTime(new DateTime(1970, 1, 1, 0, 0, 10, DateTimeKind.Utc).AddTicks(50))); |
| |
| Assert.AreEqual(new Timespec(1437452508, 0), |
| Timespec.FromDateTime(new DateTime(2015, 7, 21, 4, 21, 48, DateTimeKind.Utc))); |
| |
| // before epoch |
| Assert.AreEqual(new Timespec(-5, 1000), |
| Timespec.FromDateTime(new DateTime(1969, 12, 31, 23, 59, 55, DateTimeKind.Utc).AddTicks(10))); |
| |
| // infinity |
| Assert.AreEqual(Timespec.InfFuture, Timespec.FromDateTime(DateTime.MaxValue)); |
| Assert.AreEqual(Timespec.InfPast, Timespec.FromDateTime(DateTime.MinValue)); |
| |
| // illegal inputs |
| Assert.Throws(typeof(ArgumentException), |
| () => Timespec.FromDateTime(new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Unspecified))); |
| } |
| |
| [Test] |
| [Category("Performance")] |
| [Ignore("Prevent running on Jenkins")] |
| public void NowBenchmark() |
| { |
| // approx Timespec.Now latency <33ns |
| BenchmarkUtil.RunBenchmark(10000000, 1000000000, () => { var now = Timespec.Now; }); |
| } |
| |
| [Test] |
| [Category("Performance")] |
| [Ignore("Prevent running on Jenkins")] |
| public void PreciseNowBenchmark() |
| { |
| // approx Timespec.PreciseNow latency <18ns (when compiled with GRPC_TIMERS_RDTSC) |
| BenchmarkUtil.RunBenchmark(10000000, 1000000000, () => { var now = Timespec.PreciseNow; }); |
| } |
| } |
| } |