private TestServiceConnection MockServiceConnection(IConnectionFactory serviceConnectionFactory = null,
IClientConnectionFactory clientConnectionFactory = null,
ILoggerFactory loggerFactory = null,
GracefulShutdownMode mode = GracefulShutdownMode.Off)
{
clientConnectionFactory ??= new ClientConnectionFactory();
serviceConnectionFactory ??= new TestConnectionFactory(conn => Task.CompletedTask);
loggerFactory ??= NullLoggerFactory.Instance;
var services = new ServiceCollection();
var connectionHandler = new EndlessConnectionHandler();
services.AddSingleton(connectionHandler);
var builder = new ConnectionBuilder(services.BuildServiceProvider());
builder.UseConnectionHandler <EndlessConnectionHandler>();
ConnectionDelegate handler = builder.Build();
return(new TestServiceConnection(
serviceConnectionFactory,
clientConnectionFactory,
loggerFactory,
handler,
mode: mode
));
}
public async Task ClientConnectionOutgoingAbortCanEndLifeTime()
{
using (StartVerifiableLog(out var loggerFactory, LogLevel.Warning, expectedErrors: c => true,
logChecker: logs =>
{
Assert.Equal(2, logs.Count);
Assert.Equal("SendLoopStopped", logs[0].Write.EventId.Name);
Assert.Equal("ApplicationTaskFailed", logs[1].Write.EventId.Name);
return(true);
}))
{
var ccm = new TestClientConnectionManager();
var ccf = new ClientConnectionFactory();
var protocol = new ServiceProtocol();
TestConnection transportConnection = null;
var connectionFactory = new TestConnectionFactory(conn =>
{
transportConnection = conn;
return(Task.CompletedTask);
});
var services = new ServiceCollection();
var connectionHandler = new EndlessConnectionHandler();
services.AddSingleton(connectionHandler);
var builder = new ConnectionBuilder(services.BuildServiceProvider());
builder.UseConnectionHandler <EndlessConnectionHandler>();
ConnectionDelegate handler = builder.Build();
var connection = new ServiceConnection(protocol, ccm, connectionFactory, loggerFactory, handler, ccf,
"serverId", Guid.NewGuid().ToString("N"), null, null,
closeTimeOutMilliseconds: 500);
var connectionTask = connection.StartAsync();
// completed handshake
await connection.ConnectionInitializedTask.OrTimeout();
Assert.Equal(ServiceConnectionStatus.Connected, connection.Status);
var clientConnectionId = Guid.NewGuid().ToString();
await transportConnection.Application.Output.WriteAsync(
protocol.GetMessageBytes(new OpenConnectionMessage(clientConnectionId, new Claim[] { })));
var clientConnection = await ccm.WaitForClientConnectionAsync(clientConnectionId).OrTimeout();
clientConnection.CancelOutgoing();
await clientConnection.LifetimeTask.OrTimeout();
// complete reading to end the connection
transportConnection.Application.Output.Complete();
// 1s for application task to timeout
await connectionTask.OrTimeout(1000);
Assert.Equal(ServiceConnectionStatus.Disconnected, connection.Status);
Assert.Empty(ccm.ClientConnections);
connectionHandler.CancellationToken.Cancel();
}
}
public async Task TestServiceConnectionWithEndlessApplicationTaskNeverEnds()
{
var clientConnectionId = Guid.NewGuid().ToString();
using (StartVerifiableLog(out var loggerFactory, LogLevel.Warning, expectedErrors: c => true,
logChecker: logs =>
{
Assert.Single(logs);
Assert.Equal("DetectedLongRunningApplicationTask", logs[0].Write.EventId.Name);
Assert.Equal($"The connection {clientConnectionId} has a long running application logic that prevents the connection from complete.", logs[0].Write.Message);
return(true);
}))
{
var ccm = new TestClientConnectionManager();
var ccf = new ClientConnectionFactory();
var protocol = new ServiceProtocol();
TestConnection transportConnection = null;
var connectionFactory = new TestConnectionFactory(conn =>
{
transportConnection = conn;
return(Task.CompletedTask);
});
var services = new ServiceCollection();
var connectionHandler = new EndlessConnectionHandler();
services.AddSingleton(connectionHandler);
var builder = new ConnectionBuilder(services.BuildServiceProvider());
builder.UseConnectionHandler <EndlessConnectionHandler>();
ConnectionDelegate handler = builder.Build();
var connection = new ServiceConnection(protocol, ccm, connectionFactory, loggerFactory, handler, ccf,
"serverId", Guid.NewGuid().ToString("N"),
null, null, null, closeTimeOutMilliseconds: 1);
var connectionTask = connection.StartAsync();
// completed handshake
await connection.ConnectionInitializedTask.OrTimeout();
Assert.Equal(ServiceConnectionStatus.Connected, connection.Status);
await transportConnection.Application.Output.WriteAsync(
protocol.GetMessageBytes(new OpenConnectionMessage(clientConnectionId, new Claim[] { })));
var clientConnection = await ccm.WaitForClientConnectionAsync(clientConnectionId).OrTimeout();
// complete reading to end the connection
transportConnection.Application.Output.Complete();
// Assert timeout
var lifetime = clientConnection.LifetimeTask;
var task = await Task.WhenAny(lifetime, Task.Delay(1000));
Assert.NotEqual(lifetime, task);
Assert.Equal(ServiceConnectionStatus.Disconnected, connection.Status);
// since the service connection ends, the client connection is cleaned up from the collection...
Assert.Empty(ccm.ClientConnections);
}
}
