public void GatewayListener_OptionsValidation()
{
const ushort AnyEphemerealPort = 4323;
Mock <ILogger> loggerMock = new Mock <ILogger>();
Mock <ISocketConnectionFactory> connectionFactoryMock = new Mock <ISocketConnectionFactory>();
Mock <IDoSDefender> defenderMock = new Mock <IDoSDefender>();
GatewayListenerOptions goodGatewayListenerOptions = new GatewayListenerOptions()
{
Port = AnyEphemerealPort
};
GatewayListenerOptions badGatewayListenerOptions = new GatewayListenerOptions();
// Initialize with null parameters, should throw.
ExceptionAssert.Throws <ArgumentNullException>(
() => new GatewayListener <ISocketConnectionFactory>(loggerMock.Object, null, connectionFactoryMock.Object, defenderMock.Object),
"Value cannot be null. (Parameter 'options')");
ExceptionAssert.Throws <ValidationException>(
() => new GatewayListener <ISocketConnectionFactory>(loggerMock.Object, Options.Create(badGatewayListenerOptions), connectionFactoryMock.Object, defenderMock.Object),
"A port for the gateway listener must be speficied.");
// And initialize with all good values.
new GatewayListener <ISocketConnectionFactory>(loggerMock.Object, Options.Create(goodGatewayListenerOptions), connectionFactoryMock.Object, defenderMock.Object);
}
public async Task GatewayListener_CallsNewConnectionEvent()
{
const ushort AnyEphemerealPort = 1234;
const int ExpectedConnectionCount = 1;
const int NewConnectionsToEmulate = 1;
TimeSpan waitForConnectionDelay = TimeSpan.FromSeconds(2);
Mock <ILogger> loggerMock = new Mock <ILogger>();
Mock <IDoSDefender> defenderMock = new Mock <IDoSDefender>();
Mock <ITcpListener> tcpListenerMock = this.SetupTcpListenerMock(NewConnectionsToEmulate);
Mock <ISocketConnectionFactory> connectionFactoryMock = this.SetupSocketConnectionFactory();
GatewayListenerOptions loginListenerOptions = new GatewayListenerOptions()
{
Port = AnyEphemerealPort,
};
IListener gatewayListener = new GatewayListener <ISocketConnectionFactory>(
loggerMock.Object,
Options.Create(loginListenerOptions),
connectionFactoryMock.Object,
defenderMock.Object,
tcpListenerMock.Object);
var connectionCount = 0;
var listenerTask = gatewayListener.StartAsync(CancellationToken.None);
gatewayListener.NewConnection += (connection) =>
{
connectionCount++;
};
// Delay for a second and check that the counter has gone up on connections count.
await Task.Delay(waitForConnectionDelay).ContinueWith(prev =>
{
Assert.AreEqual(ExpectedConnectionCount, connectionCount, $"New connections events counter does not match, expected {ExpectedConnectionCount} but found {connectionCount}.");
});
}
public void GatewayListener_Initialization()
{
Mock <ILogger> loggerMock = new Mock <ILogger>();
Mock <ISocketConnectionFactory> connectionFactoryMock = new Mock <ISocketConnectionFactory>();
Mock <IDoSDefender> defenderMock = new Mock <IDoSDefender>();
GatewayListenerOptions loginListenerOptions = new GatewayListenerOptions()
{
Port = 7171,
};
// Initialize with null parameters, should throw.
ExceptionAssert.Throws <ArgumentNullException>(() => new GatewayListener <ISocketConnectionFactory>(null, Options.Create(loginListenerOptions), connectionFactoryMock.Object, defenderMock.Object), $"Value cannot be null. (Parameter 'logger')");
ExceptionAssert.Throws <ArgumentNullException>(() => new GatewayListener <ISocketConnectionFactory>(loggerMock.Object, null, connectionFactoryMock.Object, defenderMock.Object), $"Value cannot be null. (Parameter 'options')");
ExceptionAssert.Throws <ArgumentNullException>(() => new GatewayListener <ISocketConnectionFactory>(loggerMock.Object, Options.Create(loginListenerOptions), null, defenderMock.Object), $"Value cannot be null. (Parameter 'socketConnectionFactory')");
// A null DoS defender is OK.
new GatewayListener <ISocketConnectionFactory>(loggerMock.Object, Options.Create(loginListenerOptions), connectionFactoryMock.Object, null);
// And initialize with all good values.
new GatewayListener <ISocketConnectionFactory>(loggerMock.Object, Options.Create(loginListenerOptions), connectionFactoryMock.Object, defenderMock.Object);
}
