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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.Threading.Tasks;
using Grpc.Core;
using Grpc.Core.Internal;
using Grpc.Core.Utils;
using NUnit.Framework;
namespace Grpc.Core.Tests
{
public class ChannelTest
{
[Test]
public void Constructor_RejectsInvalidParams()
{
Assert.Throws(typeof(ArgumentNullException), () => new Channel(null, ChannelCredentials.Insecure));
}
[Test]
public void Constructor_RejectsDuplicateOptions()
{
var options = new ChannelOption[]
{
new ChannelOption(ChannelOptions.PrimaryUserAgentString, "ABC"),
new ChannelOption(ChannelOptions.PrimaryUserAgentString, "XYZ")
};
Assert.Throws(typeof(ArgumentException), () => new Channel("127.0.0.1", ChannelCredentials.Insecure, options));
}
[Test]
public void State_IdleAfterCreation()
{
var channel = new Channel("localhost", ChannelCredentials.Insecure);
Assert.AreEqual(ChannelState.Idle, channel.State);
channel.ShutdownAsync().Wait();
}
[Test]
public void WaitForStateChangedAsync_InvalidArgument()
{
var channel = new Channel("localhost", ChannelCredentials.Insecure);
Assert.ThrowsAsync(typeof(ArgumentException), async () => await channel.WaitForStateChangedAsync(ChannelState.Shutdown));
channel.ShutdownAsync().Wait();
}
[Test]
public void ResolvedTarget()
{
var channel = new Channel("127.0.0.1", ChannelCredentials.Insecure);
Assert.IsTrue(channel.ResolvedTarget.Contains("127.0.0.1"));
channel.ShutdownAsync().Wait();
}
[Test]
public void Shutdown_AllowedOnlyOnce()
{
var channel = new Channel("localhost", ChannelCredentials.Insecure);
channel.ShutdownAsync().Wait();
Assert.ThrowsAsync(typeof(InvalidOperationException), async () => await channel.ShutdownAsync());
}
[Test]
public async Task ShutdownTokenCancelledAfterShutdown()
{
var channel = new Channel("localhost", ChannelCredentials.Insecure);
Assert.IsFalse(channel.ShutdownToken.IsCancellationRequested);
var shutdownTask = channel.ShutdownAsync();
Assert.IsTrue(channel.ShutdownToken.IsCancellationRequested);
await shutdownTask;
}
[Test]
public async Task StateIsShutdownAfterShutdown()
{
var channel = new Channel("localhost", ChannelCredentials.Insecure);
await channel.ShutdownAsync();
Assert.AreEqual(ChannelState.Shutdown, channel.State);
}
[Test]
public async Task ShutdownFinishesWaitForStateChangedAsync()
{
var channel = new Channel("localhost", ChannelCredentials.Insecure);
var stateChangedTask = channel.WaitForStateChangedAsync(ChannelState.Idle);
var shutdownTask = channel.ShutdownAsync();
await stateChangedTask;
await shutdownTask;
}
[Test]
public async Task OperationsThrowAfterShutdown()
{
var channel = new Channel("localhost", ChannelCredentials.Insecure);
await channel.ShutdownAsync();
Assert.ThrowsAsync(typeof(ObjectDisposedException), async () => await channel.WaitForStateChangedAsync(ChannelState.Idle));
Assert.Throws(typeof(ObjectDisposedException), () => { var x = channel.ResolvedTarget; });
Assert.ThrowsAsync(typeof(TaskCanceledException), async () => await channel.ConnectAsync());
}
}
}
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