public ServerTests()
{
_clusterId = new ClusterId();
_endPoint = new DnsEndPoint("localhost", 27017);
_clusterClock = new Mock <IClusterClock>().Object;
#pragma warning disable CS0618 // Type or member is obsolete
_clusterConnectionMode = ClusterConnectionMode.Standalone;
_connectionModeSwitch = ConnectionModeSwitch.UseConnectionMode;
#pragma warning restore CS0618 // Type or member is obsolete
_directConnection = null;
_mockConnectionPool = new Mock <IConnectionPool>();
_mockConnectionPool.Setup(p => p.AcquireConnection(It.IsAny <CancellationToken>())).Returns(new Mock <IConnectionHandle>().Object);
_mockConnectionPool.Setup(p => p.AcquireConnectionAsync(It.IsAny <CancellationToken>())).Returns(Task.FromResult(new Mock <IConnectionHandle>().Object));
_mockConnectionPoolFactory = new Mock <IConnectionPoolFactory>();
_mockConnectionPoolFactory
.Setup(f => f.CreateConnectionPool(It.IsAny <ServerId>(), _endPoint))
.Returns(_mockConnectionPool.Object);
_mockServerMonitor = new Mock <IServerMonitor>();
_mockServerMonitorFactory = new Mock <IServerMonitorFactory>();
_mockServerMonitorFactory.Setup(f => f.Create(It.IsAny <ServerId>(), _endPoint)).Returns(_mockServerMonitor.Object);
_capturedEvents = new EventCapturer();
_serverApi = new ServerApi(ServerApiVersion.V1, true, true);
_settings = new ServerSettings(heartbeatInterval: Timeout.InfiniteTimeSpan);
_subject = new DefaultServer(_clusterId, _clusterClock, _clusterConnectionMode, _connectionModeSwitch, _directConnection, _settings, _endPoint, _mockConnectionPoolFactory.Object, _mockServerMonitorFactory.Object, _capturedEvents, _serverApi);
_connectionId = new ConnectionId(_subject.ServerId);
}
public void GetChannel_should_update_topology_and_clear_connection_pool_on_network_error_or_timeout(
[Values("TimedOutSocketException", "NetworkUnreachableSocketException")] string errorType,
[Values(false, true)] bool async)
{
var serverId = new ServerId(_clusterId, _endPoint);
var connectionId = new ConnectionId(serverId);
var innerMostException = CoreExceptionHelper.CreateException(errorType);
var openConnectionException = new MongoConnectionException(connectionId, "Oops", new IOException("Cry", innerMostException));
var mockConnection = new Mock <IConnectionHandle>();
mockConnection.Setup(c => c.Open(It.IsAny <CancellationToken>())).Throws(openConnectionException);
mockConnection.Setup(c => c.OpenAsync(It.IsAny <CancellationToken>())).ThrowsAsync(openConnectionException);
var connectionFactory = new Mock <IConnectionFactory>();
connectionFactory.Setup(cf => cf.CreateConnection(serverId, _endPoint)).Returns(mockConnection.Object);
var mockExceptionHandler = new Mock <IConnectionExceptionHandler>();
var connectionPoolSettings = new ConnectionPoolSettings();
var connectionPool = new ExclusiveConnectionPool(serverId, _endPoint, connectionPoolSettings, connectionFactory.Object, new EventAggregator(), mockExceptionHandler.Object);
var mockConnectionPoolFactory = new Mock <IConnectionPoolFactory>();
mockConnectionPoolFactory
.Setup(f => f.CreateConnectionPool(It.IsAny <ServerId>(), _endPoint, It.IsAny <IConnectionExceptionHandler>()))
.Returns(connectionPool);
var mockMonitorServerDescription = new ServerDescription(serverId, _endPoint);
var mockServerMonitor = new Mock <IServerMonitor>();
mockServerMonitor.SetupGet(m => m.Description).Returns(mockMonitorServerDescription);
mockServerMonitor.SetupGet(m => m.Lock).Returns(new object());
var mockServerMonitorFactory = new Mock <IServerMonitorFactory>();
mockServerMonitorFactory.Setup(f => f.Create(It.IsAny <ServerId>(), _endPoint)).Returns(mockServerMonitor.Object);
var subject = new DefaultServer(_clusterId, _clusterClock, _clusterConnectionMode, _connectionModeSwitch, _directConnection, _settings, _endPoint, mockConnectionPoolFactory.Object, mockServerMonitorFactory.Object, _capturedEvents, _serverApi);
connectionPool._connectionExceptionHandler(subject);
subject.Initialize();
connectionPool.SetReady();
IChannelHandle channel = null;
Exception exception;
if (async)
{
exception = Record.Exception(() => channel = subject.GetChannelAsync(CancellationToken.None).GetAwaiter().GetResult());
}
else
{
exception = Record.Exception(() => channel = subject.GetChannel(CancellationToken.None));
}
channel.Should().BeNull();
exception.Should().Be(openConnectionException);
subject.Description.Type.Should().Be(ServerType.Unknown);
subject.Description.ReasonChanged.Should().Contain("ChannelException during handshake");
}
public static bool ShouldInvalidateServer(this DefaultServer server,
IConnection connection,
Exception exception,
ServerDescription description,
out TopologyVersion responseTopologyVersion)
{
return((bool)Reflector.Invoke(server, nameof(ShouldInvalidateServer), connection, exception, description, out responseTopologyVersion));
}
public void GetChannel_should_clear_connection_pool_when_opening_connection_throws_MongoAuthenticationException(
[Values(false, true)] bool async)
{
var connectionId = new ConnectionId(new ServerId(_clusterId, _endPoint));
var mockConnectionHandle = new Mock <IConnectionHandle>();
var mockConnectionPool = new Mock <IConnectionPool>();
var mockConnectionPoolFactory = new Mock <IConnectionPoolFactory>();
mockConnectionPoolFactory
.Setup(f => f.CreateConnectionPool(It.IsAny <ServerId>(), _endPoint, It.IsAny <IConnectionExceptionHandler>()))
.Returns(mockConnectionPool.Object);
var server = new DefaultServer(
_clusterId,
_clusterClock,
_clusterConnectionMode,
_connectionModeSwitch,
_directConnection,
_settings,
_endPoint,
mockConnectionPoolFactory.Object,
_mockServerMonitorFactory.Object,
_capturedEvents,
_serverApi);
var exceptionToThrow = new MongoAuthenticationException(connectionId, "Invalid login.");
mockConnectionPool
.Setup(p => p.AcquireConnection(It.IsAny <CancellationToken>()))
.Callback(() => server.HandleExceptionOnOpen(exceptionToThrow))
.Throws(exceptionToThrow);
mockConnectionPool
.Setup(p => p.AcquireConnectionAsync(It.IsAny <CancellationToken>()))
.Callback(() => server.HandleExceptionOnOpen(exceptionToThrow))
.Throws(exceptionToThrow);
mockConnectionPool.Setup(p => p.Clear(It.IsAny <bool>()));
server.Initialize();
var exception = Record.Exception(() =>
{
if (async)
{
server.GetChannelAsync(CancellationToken.None).GetAwaiter().GetResult();
}
else
{
server.GetChannel(CancellationToken.None);
}
});
exception.Should().BeOfType <MongoAuthenticationException>();
mockConnectionPool.Verify(p => p.Clear(It.IsAny <bool>()), Times.Once());
}
// private methods
private Server SetupServer(bool exceptionOnConnectionOpen, bool exceptionOnConnectionAcquire)
{
var connectionId = new ConnectionId(new ServerId(_clusterId, _endPoint));
var mockConnectionHandle = new Mock <IConnectionHandle>();
mockConnectionHandle
.Setup(c => c.Fork())
.Returns(mockConnectionHandle.Object);
var mockConnectionPool = new Mock <IConnectionPool>();
if (exceptionOnConnectionAcquire)
{
mockConnectionPool
.Setup(p => p.AcquireConnection(It.IsAny <CancellationToken>()))
.Throws(new TimeoutException("Timeout"));
mockConnectionPool
.Setup(p => p.AcquireConnectionAsync(It.IsAny <CancellationToken>()))
.Throws(new TimeoutException("Timeout"));
mockConnectionPool.Setup(p => p.Clear());
}
else if (exceptionOnConnectionOpen)
{
mockConnectionPool
.Setup(p => p.AcquireConnection(It.IsAny <CancellationToken>()))
.Throws(new MongoAuthenticationException(connectionId, "Invalid login."));
mockConnectionPool
.Setup(p => p.AcquireConnectionAsync(It.IsAny <CancellationToken>()))
.Throws(new MongoAuthenticationException(connectionId, "Invalid login."));
mockConnectionPool.Setup(p => p.Clear());
}
else
{
mockConnectionPool
.Setup(p => p.AcquireConnection(It.IsAny <CancellationToken>()))
.Returns(mockConnectionHandle.Object);
mockConnectionPool
.Setup(p => p.AcquireConnectionAsync(It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(mockConnectionHandle.Object));
mockConnectionPool.Setup(p => p.Clear());
}
var mockConnectionPoolFactory = new Mock <IConnectionPoolFactory>();
mockConnectionPoolFactory
.Setup(f => f.CreateConnectionPool(It.IsAny <ServerId>(), _endPoint))
.Returns(mockConnectionPool.Object);
var server = new DefaultServer(
_clusterId,
_clusterClock,
_clusterConnectionMode,
_connectionModeSwitch,
_directConnection,
_settings,
_endPoint,
mockConnectionPoolFactory.Object,
_mockServerMonitorFactory.Object,
_capturedEvents,
_serverApi);
server.Initialize();
return(server);
}
public void HandleChannelException_should_update_topology_as_expected_on_network_error_or_timeout(
string errorType, bool shouldUpdateTopology)
{
var serverId = new ServerId(_clusterId, _endPoint);
var connectionId = new ConnectionId(serverId);
Exception innerMostException;
switch (errorType)
{
case "MongoConnectionExceptionWithSocketTimeout":
innerMostException = new SocketException((int)SocketError.TimedOut);
break;
case nameof(MongoConnectionException):
innerMostException = new SocketException((int)SocketError.NetworkUnreachable);
break;
default: throw new ArgumentException("Unknown error type.");
}
var operationUsingChannelException = new MongoConnectionException(connectionId, "Oops", new IOException("Cry", innerMostException));
var mockConnection = new Mock <IConnectionHandle>();
var isMasterResult = new IsMasterResult(new BsonDocument {
{ "compressors", new BsonArray() }
});
// the server version doesn't matter when we're not testing MongoNotPrimaryExceptions, but is needed when
// Server calls ShouldClearConnectionPoolForException
var buildInfoResult = new BuildInfoResult(new BsonDocument {
{ "version", "4.4.0" }
});
mockConnection.SetupGet(c => c.Description)
.Returns(new ConnectionDescription(new ConnectionId(serverId, 0), isMasterResult, buildInfoResult));
var mockConnectionPool = new Mock <IConnectionPool>();
mockConnectionPool.Setup(p => p.AcquireConnection(It.IsAny <CancellationToken>())).Returns(mockConnection.Object);
mockConnectionPool.Setup(p => p.AcquireConnectionAsync(It.IsAny <CancellationToken>())).ReturnsAsync(mockConnection.Object);
var mockConnectionPoolFactory = new Mock <IConnectionPoolFactory>();
mockConnectionPoolFactory
.Setup(f => f.CreateConnectionPool(It.IsAny <ServerId>(), _endPoint))
.Returns(mockConnectionPool.Object);
var mockMonitorServerInitialDescription = new ServerDescription(serverId, _endPoint).With(reasonChanged: "Initial D", type: ServerType.Unknown);
var mockServerMonitor = new Mock <IServerMonitor>();
mockServerMonitor.SetupGet(m => m.Description).Returns(mockMonitorServerInitialDescription);
mockServerMonitor.SetupGet(m => m.Lock).Returns(new object());
var mockServerMonitorFactory = new Mock <IServerMonitorFactory>();
mockServerMonitorFactory.Setup(f => f.Create(It.IsAny <ServerId>(), _endPoint)).Returns(mockServerMonitor.Object);
var subject = new DefaultServer(_clusterId, _clusterClock, _clusterConnectionMode, _connectionModeSwitch, _directConnection, _settings, _endPoint, mockConnectionPoolFactory.Object, mockServerMonitorFactory.Object, _capturedEvents, _serverApi);
subject.Initialize();
var heartbeatDescription = mockMonitorServerInitialDescription.With(reasonChanged: "Heartbeat", type: ServerType.Standalone);
mockServerMonitor.Setup(m => m.Description).Returns(heartbeatDescription);
mockServerMonitor.Raise(
m => m.DescriptionChanged += null,
new ServerDescriptionChangedEventArgs(mockMonitorServerInitialDescription, heartbeatDescription));
subject.Description.Should().Be(heartbeatDescription);
subject.HandleChannelException(mockConnection.Object, operationUsingChannelException);
if (shouldUpdateTopology)
{
subject.Description.Type.Should().Be(ServerType.Unknown);
subject.Description.ReasonChanged.Should().Contain("ChannelException");
}
else
{
subject.Description.Should().Be(heartbeatDescription);
}
}
public static bool IsStateChangeException(this DefaultServer server, Exception exception)
{
return((bool)Reflector.Invoke(server, nameof(IsStateChangeException), exception));
}
public static void HandleChannelException(this DefaultServer server, IConnection connection, Exception ex)
{
Reflector.Invoke(server, nameof(HandleChannelException), connection, ex, checkBaseClass: true);
}