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#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.Diagnostics;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Grpc.Core;
using Grpc.Core.Internal;
using Grpc.Core.Utils;
using NUnit.Framework;
namespace Grpc.Core.Tests
{
/// <summary>
/// Tests for Deadline support.
/// </summary>
public class TimeoutsTest
{
MockServiceHelper helper;
Server server;
Channel channel;
[SetUp]
public void Init()
{
helper = new MockServiceHelper();
server = helper.GetServer();
server.Start();
channel = helper.GetChannel();
}
[TearDown]
public void Cleanup()
{
channel.ShutdownAsync().Wait();
server.ShutdownAsync().Wait();
}
[Test]
public void InfiniteDeadline()
{
helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) =>
{
Assert.AreEqual(DateTime.MaxValue, context.Deadline);
return "PASS";
});
// no deadline specified, check server sees infinite deadline
Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "abc"));
// DateTime.MaxValue deadline specified, check server sees infinite deadline
Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(new CallOptions(deadline: DateTime.MaxValue)), "abc"));
}
[Test]
public void DeadlineTransferredToServer()
{
var clientDeadline = DateTime.UtcNow + TimeSpan.FromDays(7);
helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) =>
{
// A fairly relaxed check that the deadline set by client and deadline seen by server
// are in agreement. C core takes care of the work with transferring deadline over the wire,
// so we don't need an exact check here.
Assert.IsTrue(Math.Abs((clientDeadline - context.Deadline).TotalMilliseconds) < 5000);
return "PASS";
});
Calls.BlockingUnaryCall(helper.CreateUnaryCall(new CallOptions(deadline: clientDeadline)), "abc");
}
[Test]
public void DeadlineInThePast()
{
helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) =>
{
await Task.Delay(60000);
return "FAIL";
});
var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(new CallOptions(deadline: DateTime.MinValue)), "abc"));
// We can't guarantee the status code always DeadlineExceeded. See issue #2685.
Assert.Contains(ex.Status.StatusCode, new[] { StatusCode.DeadlineExceeded, StatusCode.Internal });
}
[Test]
public void DeadlineExceededStatusOnTimeout()
{
helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) =>
{
await Task.Delay(60000);
return "FAIL";
});
var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(new CallOptions(deadline: DateTime.UtcNow.Add(TimeSpan.FromSeconds(5)))), "abc"));
// We can't guarantee the status code always DeadlineExceeded. See issue #2685.
Assert.Contains(ex.Status.StatusCode, new[] { StatusCode.DeadlineExceeded, StatusCode.Internal });
}
[Test]
public async Task ServerReceivesCancellationOnTimeout()
{
var serverReceivedCancellationTcs = new TaskCompletionSource<bool>();
helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) =>
{
// wait until cancellation token is fired.
var tcs = new TaskCompletionSource<object>();
context.CancellationToken.Register(() => { tcs.SetResult(null); });
await tcs.Task;
serverReceivedCancellationTcs.SetResult(true);
return "";
});
var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(new CallOptions(deadline: DateTime.UtcNow.Add(TimeSpan.FromSeconds(5)))), "abc"));
// We can't guarantee the status code always DeadlineExceeded. See issue #2685.
Assert.Contains(ex.Status.StatusCode, new[] { StatusCode.DeadlineExceeded, StatusCode.Internal });
Assert.IsTrue(await serverReceivedCancellationTcs.Task);
}
}
}
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