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Diffstat (limited to 'src/csharp/Grpc.Core.Tests/Internal/TimespecTest.cs')
| -rw-r--r-- | src/csharp/Grpc.Core.Tests/Internal/TimespecTest.cs | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/csharp/Grpc.Core.Tests/Internal/TimespecTest.cs b/src/csharp/Grpc.Core.Tests/Internal/TimespecTest.cs new file mode 100644 index 0000000000..874df02baa --- /dev/null +++ b/src/csharp/Grpc.Core.Tests/Internal/TimespecTest.cs @@ -0,0 +1,202 @@ +#region Copyright notice and license + +// Copyright 2015, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#endregion + +using System; +using System.Runtime.InteropServices; +using Grpc.Core.Internal; +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 InfFuture() + { + var timespec = Timespec.InfFuture; + } + + [Test] + public void InfPast() + { + var timespec = Timespec.InfPast; + } + + [Test] + public void TimespecSizeIsNativeSize() + { + Assert.AreEqual(Timespec.NativeSize, Marshal.SizeOf(typeof(Timespec))); + } + + [Test] + public void ToDateTime() + { + Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc), + new Timespec(IntPtr.Zero, 0).ToDateTime()); + + Assert.AreEqual(new DateTime(1970, 1, 1, 0, 0, 10, DateTimeKind.Utc).AddTicks(50), + new Timespec(new IntPtr(10), 5000).ToDateTime()); + + Assert.AreEqual(new DateTime(2015, 7, 21, 4, 21, 48, DateTimeKind.Utc), + new Timespec(new IntPtr(1437452508), 0).ToDateTime()); + + // before epoch + Assert.AreEqual(new DateTime(1969, 12, 31, 23, 59, 55, DateTimeKind.Utc).AddTicks(10), + new Timespec(new IntPtr(-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(IntPtr.Zero, 99).ToDateTime()); + + // Illegal inputs + Assert.Throws(typeof(InvalidOperationException), + () => new Timespec(new IntPtr(0), -2).ToDateTime()); + Assert.Throws(typeof(InvalidOperationException), + () => new Timespec(new IntPtr(0), 1000 * 1000 * 1000).ToDateTime()); + Assert.Throws(typeof(InvalidOperationException), + () => new Timespec(new IntPtr(0), 0, GPRClockType.Monotonic).ToDateTime()); + } + + [Test] + public void ToDateTime_ReturnsUtc() + { + Assert.AreEqual(DateTimeKind.Utc, new Timespec(new IntPtr(1437452508), 0).ToDateTime().Kind); + Assert.AreNotEqual(DateTimeKind.Unspecified, new Timespec(new IntPtr(1437452508), 0).ToDateTime().Kind); + } + + [Test] + public void ToDateTime_Overflow() + { + // we can only get overflow in ticks arithmetic on 64-bit + if (IntPtr.Size == 8) + { + var timespec = new Timespec(new IntPtr(long.MaxValue - 100), 0); + Assert.AreNotEqual(Timespec.InfFuture, timespec); + Assert.AreEqual(DateTime.MaxValue, timespec.ToDateTime()); + + Assert.AreEqual(DateTime.MinValue, new Timespec(new IntPtr(long.MinValue + 100), 0).ToDateTime()); + } + else + { + Console.WriteLine("Test cannot be run on this platform, skipping the test."); + } + } + + [Test] + public void ToDateTime_OutOfDateTimeRange() + { + // we can only get out of range on 64-bit, on 32 bit the max + // timestamp is ~ Jan 19 2038, which is far within range of DateTime + // same case for min value. + if (IntPtr.Size == 8) + { + // 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(new IntPtr(seconds), 0); + Assert.AreNotEqual(Timespec.InfFuture, timespec); + Assert.AreEqual(DateTime.MaxValue, timespec.ToDateTime()); + + Assert.AreEqual(DateTime.MinValue, new Timespec(new IntPtr(-seconds), 0).ToDateTime()); + } + else + { + Console.WriteLine("Test cannot be run on this platform, skipping the test"); + } + } + + [Test] + public void FromDateTime() + { + Assert.AreEqual(new Timespec(IntPtr.Zero, 0), + Timespec.FromDateTime(new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc))); + + Assert.AreEqual(new Timespec(new IntPtr(10), 5000), + Timespec.FromDateTime(new DateTime(1970, 1, 1, 0, 0, 10, DateTimeKind.Utc).AddTicks(50))); + + Assert.AreEqual(new Timespec(new IntPtr(1437452508), 0), + Timespec.FromDateTime(new DateTime(2015, 7, 21, 4, 21, 48, DateTimeKind.Utc))); + + // before epoch + Assert.AreEqual(new Timespec(new IntPtr(-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] + public void FromDateTime_OutOfTimespecRange() + { + // we can only get overflow in Timespec on 32-bit + if (IntPtr.Size == 4) + { + Assert.AreEqual(Timespec.InfFuture, Timespec.FromDateTime(new DateTime(2040, 1, 1, 0, 0, 0, DateTimeKind.Utc))); + Assert.AreEqual(Timespec.InfPast, Timespec.FromDateTime(new DateTime(1800, 1, 1, 0, 0, 0, DateTimeKind.Utc))); + } + else + { + Console.WriteLine("Test cannot be run on this platform, skipping the test."); + } + } + } +} |