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#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.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Grpc.Core;
using Grpc.Core.Utils;
using NUnit.Framework;
namespace Math.Tests
{
/// <summary>
/// Math client talks to local math server.
/// </summary>
public class MathClientServerTest
{
const string Host = "localhost";
Server server;
Channel channel;
Math.MathClient client;
[OneTimeSetUp]
public void Init()
{
// Disable SO_REUSEPORT to prevent https://github.com/grpc/grpc/issues/10755
server = new Server(new[] { new ChannelOption(ChannelOptions.SoReuseport, 0) })
{
Services = { Math.BindService(new MathServiceImpl()) },
Ports = { { Host, ServerPort.PickUnused, ServerCredentials.Insecure } }
};
server.Start();
channel = new Channel(Host, server.Ports.Single().BoundPort, ChannelCredentials.Insecure);
client = new Math.MathClient(channel);
}
[OneTimeTearDown]
public void Cleanup()
{
channel.ShutdownAsync().Wait();
server.ShutdownAsync().Wait();
}
[Test]
public void Div1()
{
DivReply response = client.Div(new DivArgs { Dividend = 10, Divisor = 3 });
Assert.AreEqual(3, response.Quotient);
Assert.AreEqual(1, response.Remainder);
}
[Test]
public void Div2()
{
DivReply response = client.Div(new DivArgs { Dividend = 0, Divisor = 1 });
Assert.AreEqual(0, response.Quotient);
Assert.AreEqual(0, response.Remainder);
}
[Test]
public void DivByZero()
{
var ex = Assert.Throws<RpcException>(() => client.Div(new DivArgs { Dividend = 0, Divisor = 0 }));
Assert.AreEqual(StatusCode.InvalidArgument, ex.Status.StatusCode);
}
[Test]
public async Task DivAsync()
{
DivReply response = await client.DivAsync(new DivArgs { Dividend = 10, Divisor = 3 });
Assert.AreEqual(3, response.Quotient);
Assert.AreEqual(1, response.Remainder);
}
[Test]
public async Task Fib()
{
using (var call = client.Fib(new FibArgs { Limit = 6 }))
{
var responses = await call.ResponseStream.ToListAsync();
CollectionAssert.AreEqual(new List<long> { 1, 1, 2, 3, 5, 8 },
responses.Select((n) => n.Num_));
}
}
[Test]
public async Task FibWithCancel()
{
var cts = new CancellationTokenSource();
using (var call = client.Fib(new FibArgs { Limit = 0 }, cancellationToken: cts.Token))
{
List<long> responses = new List<long>();
try
{
while (await call.ResponseStream.MoveNext())
{
if (responses.Count == 0)
{
cts.CancelAfter(500); // make sure we cancel soon
}
responses.Add(call.ResponseStream.Current.Num_);
}
Assert.Fail();
}
catch (RpcException e)
{
Assert.IsTrue(responses.Count > 0);
Assert.AreEqual(StatusCode.Cancelled, e.Status.StatusCode);
}
}
}
[Test]
public void FibWithDeadline()
{
using (var call = client.Fib(new FibArgs { Limit = 0 },
deadline: DateTime.UtcNow.AddMilliseconds(500)))
{
var ex = Assert.ThrowsAsync<RpcException>(async () => await call.ResponseStream.ToListAsync());
// We can't guarantee the status code always DeadlineExceeded. See issue #2685.
Assert.Contains(ex.Status.StatusCode, new[] { StatusCode.DeadlineExceeded, StatusCode.Internal });
}
}
// TODO: test Fib with limit=0 and cancellation
[Test]
public async Task Sum()
{
using (var call = client.Sum())
{
var numbers = new List<long> { 10, 20, 30 }.Select(n => new Num { Num_ = n });
await call.RequestStream.WriteAllAsync(numbers);
var result = await call.ResponseAsync;
Assert.AreEqual(60, result.Num_);
}
}
[Test]
public async Task DivMany()
{
var divArgsList = new List<DivArgs>
{
new DivArgs { Dividend = 10, Divisor = 3 },
new DivArgs { Dividend = 100, Divisor = 21 },
new DivArgs { Dividend = 7, Divisor = 2 }
};
using (var call = client.DivMany())
{
await call.RequestStream.WriteAllAsync(divArgsList);
var result = await call.ResponseStream.ToListAsync();
CollectionAssert.AreEqual(new long[] { 3, 4, 3 }, result.Select((divReply) => divReply.Quotient));
CollectionAssert.AreEqual(new long[] { 1, 16, 1 }, result.Select((divReply) => divReply.Remainder));
}
}
}
}
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