Fix unit tests

Author: drewnoakes

src/NetMQ.Tests/MsgTests.cs

@@ -25,7 +25,7 @@ public void Constructor()
             Assert.False(msg.IsDelimiter);
             Assert.False(msg.IsIdentity);
             Assert.False(msg.IsInitialised);
-            Assert.Throws<NullReferenceException>(() => msg[0] = 1);
+            Assert.ThrowsAny<Exception>(() => msg[0] = 1);
             Assert.Throws<FaultException>((Action)msg.Close);
         }
 

src/NetMQ/Monitoring/NetMQMonitor.cs

@@ -164,7 +164,7 @@ private void Handle(object sender, NetMQSocketEventArgs socketEventArgs)
                     InvokeEvent(Connected, new NetMQMonitorSocketEventArgs(this, monitorEvent.Addr, GetArg<AsyncSocket>(), SocketEvents.Connected));
                     break;
                 case SocketEvents.ConnectDelayed:
-                    InvokeEvent(ConnectDelayed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, GetArg<ErrorCode>(), SocketEvents.ConnectDelayed));
+                    InvokeEvent(ConnectDelayed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, (ErrorCode)GetArg<int>(), SocketEvents.ConnectDelayed));
                     break;
                 case SocketEvents.ConnectRetried:
                     InvokeEvent(ConnectRetried, new NetMQMonitorIntervalEventArgs(this, monitorEvent.Addr, GetArg<int>(), SocketEvents.ConnectRetried));
@@ -173,19 +173,19 @@ private void Handle(object sender, NetMQSocketEventArgs socketEventArgs)
                     InvokeEvent(Listening, new NetMQMonitorSocketEventArgs(this, monitorEvent.Addr, GetArg<AsyncSocket>(), SocketEvents.Listening));
                     break;
                 case SocketEvents.BindFailed:
-                    InvokeEvent(BindFailed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, GetArg<ErrorCode>(), SocketEvents.BindFailed));
+                    InvokeEvent(BindFailed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, (ErrorCode)GetArg<int>(), SocketEvents.BindFailed));
                     break;
                 case SocketEvents.Accepted:
                     InvokeEvent(Accepted, new NetMQMonitorSocketEventArgs(this, monitorEvent.Addr, GetArg<AsyncSocket>(), SocketEvents.Accepted));
                     break;
                 case SocketEvents.AcceptFailed:
-                    InvokeEvent(AcceptFailed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, GetArg<ErrorCode>(), SocketEvents.AcceptFailed));
+                    InvokeEvent(AcceptFailed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, (ErrorCode)GetArg<int>(), SocketEvents.AcceptFailed));
                     break;
                 case SocketEvents.Closed:
                     InvokeEvent(Closed, new NetMQMonitorSocketEventArgs(this, monitorEvent.Addr, GetArg<AsyncSocket>(), SocketEvents.Closed));
                     break;
                 case SocketEvents.CloseFailed:
-                    InvokeEvent(CloseFailed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, GetArg<ErrorCode>(), SocketEvents.CloseFailed));
+                    InvokeEvent(CloseFailed, new NetMQMonitorErrorEventArgs(this, monitorEvent.Addr, (ErrorCode)GetArg<int>(), SocketEvents.CloseFailed));
                     break;
                 case SocketEvents.Disconnected:
                     InvokeEvent(Disconnected, new NetMQMonitorSocketEventArgs(this, monitorEvent.Addr, GetArg<AsyncSocket>(), SocketEvents.Disconnected));

src/NetMQ/NetMQPoller.cs

@@ -508,9 +508,6 @@ public void Run(SynchronizationContext syncContext)
         /// </summary>
         private void RunPoller()
         {
-            Assumes.NotNull(m_pollSet);
-            Assumes.NotNull(m_pollact);
-
             try
             {
                 // Recalculate all timers now
@@ -558,6 +555,8 @@ private void RunPoller()
 
                     var isItemAvailable = false;
 
+                    Assumes.NotNull(m_pollSet);
+
                     if (m_pollSet.Length != 0)
                     {
                         isItemAvailable = m_netMqSelector.Select(m_pollSet, m_pollSet.Length, timeout);
@@ -596,6 +595,8 @@ private void RunPoller()
 
                         if (item.Socket != null)
                         {
+                            Assumes.NotNull(m_pollact);
+
                             NetMQSocket socket = m_pollact[i];
 
                             if (item.ResultEvent.HasError())