public void CheckNullException() { //set up dummy sql listener, if there is a real sql server on this //machine at that port, in theory this part will fail, but that's ok //becuase something will be listening on the port and that's all we //require at this point: a listener on port 1433... try{ Socket Listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress hostIP = Dns.GetHostEntry("localhost").AddressList[0]; IPEndPoint ep = new IPEndPoint(hostIP, 1433); Listener.Bind(ep); Listener.Listen(1); } catch (Exception) { //ignore } //try to connect twice, in earlier failure would get null exception //on 2nd call to pool.GetConnection(); //Most of this code ripped from sqlConnection.Open() TdsConnectionPool pool; TdsConnectionPoolManager sqlConnectionPools = new TdsConnectionPoolManager(TdsVersion.tds80); TdsConnectionInfo info = new TdsConnectionInfo(SERVER /*dummyhost*/, 1433 /*port*/, 8192 /*pktsize*/, 15 /*timeout*/, 0 /*minpoolsize*/, 100 /*maxpoolsize*/, 0 /*lifetime*/); pool = sqlConnectionPools.GetConnectionPool("test", info); Tds tds = null; //this first one succeeded regardless as long as something answered //the phone on port 1433 of localhost tds = pool.GetConnection(); pool.ReleaseConnection(tds); // 2nd time thru: This will fail with nullreferenceexception // at pool.GetConnection() unless the patch by Rob Wilkens which // adds "result=null;" before retry in pool.getConnection() source //First let's pretend we're calling this test fresh, as if we //call sqlConnection.Open() again : info = new TdsConnectionInfo(SERVER /*dummyhost*/, 1433 /*port*/, 8192 /*pktsize*/, 15 /*timeout*/, 0 /*minpoolsize*/, 100 /*maxpoolsize*/, 0 /*lifetime*/); pool = sqlConnectionPools.GetConnectionPool("test", info); //Then: Test for failure (will raise uncaught exception which //causes failure of test if bug is not fixed tds = pool.GetConnection(); pool.ReleaseConnection(tds); //exit }
public void CheckNullException() { //set up dummy sql listener, if there is a real sql server on this //machine at that port, in theory this part will fail, but that's ok //becuase something will be listening on the port and that's all we //require at this point: a listener on port 1433... try{ Socket Listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPAddress hostIP =Dns.GetHostEntry("localhost").AddressList[0]; IPEndPoint ep = new IPEndPoint(hostIP, 1433); Listener.Bind(ep); Listener.Listen(1); } catch (Exception){ //ignore } //try to connect twice, in earlier failure would get null exception //on 2nd call to pool.GetConnection(); //Most of this code ripped from sqlConnection.Open() TdsConnectionPool pool; TdsConnectionPoolManager sqlConnectionPools = new TdsConnectionPoolManager(TdsVersion.tds80); TdsConnectionInfo info= new TdsConnectionInfo(SERVER/*dummyhost*/,1433/*port*/, 8192/*pktsize*/,15/*timeout*/,0/*minpoolsize*/, 100/*maxpoolsize*/, 0/*lifetime*/); pool=sqlConnectionPools.GetConnectionPool("test",info); Tds tds=null; //this first one succeeded regardless as long as something answered //the phone on port 1433 of localhost tds=pool.GetConnection(); pool.ReleaseConnection(tds); // 2nd time thru: This will fail with nullreferenceexception // at pool.GetConnection() unless the patch by Rob Wilkens which // adds "result=null;" before retry in pool.getConnection() source //First let's pretend we're calling this test fresh, as if we //call sqlConnection.Open() again : info=new TdsConnectionInfo(SERVER/*dummyhost*/,1433/*port*/, 8192/*pktsize*/,15/*timeout*/,0/*minpoolsize*/, 100/*maxpoolsize*/, 0/*lifetime*/); pool=sqlConnectionPools.GetConnectionPool("test",info); //Then: Test for failure (will raise uncaught exception which //causes failure of test if bug is not fixed tds=pool.GetConnection(); pool.ReleaseConnection(tds); //exit }