111 lines
3.5 KiB
C#
111 lines
3.5 KiB
C#
//
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// bug-4786.cs-
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// NUnit Test Cases for Mono.Data.Tds.Protocol.TdsConnectionPool
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//
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// Author:
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// Robert Wilkens <robwilkens@gmail.com>
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//
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// Copyright (C) 2012 Robert Wilkens (http://www.robssoftwareprojects.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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namespace MonoTests.Mono.Data.Tds
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{
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using NUnit.Framework;
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using global::Mono.Data.Tds.Protocol;
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using System;
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using System.Net;
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using System.Net.Sockets;
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[TestFixture]
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public class TdsConnectionPoolTest
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{
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const string SERVER="localhost";
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[Test]
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public void CheckNullException()
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{
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TcpListener Listener = null;
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//set up dummy sql listener, if there is a real sql server on this
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//machine at that port, in theory this part will fail, but that's ok
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//becuase something will be listening on the port and that's all we
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//require at this point: a listener on port 1433...
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try{
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IPAddress hostIP =Dns.GetHostEntry("localhost").AddressList[0];
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IPEndPoint ep = new IPEndPoint(hostIP, 1433);
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Listener = new TcpListener (ep);
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Listener.Start ();
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} catch (Exception){
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//ignore
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}
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//try to connect twice, in earlier failure would get null exception
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//on 2nd call to pool.GetConnection();
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//Most of this code ripped from sqlConnection.Open()
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TdsConnectionPool pool;
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TdsConnectionPoolManager sqlConnectionPools =
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new TdsConnectionPoolManager(TdsVersion.tds80);
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TdsConnectionInfo info=
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new TdsConnectionInfo(SERVER/*dummyhost*/,1433/*port*/,
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8192/*pktsize*/,15/*timeout*/,0/*minpoolsize*/,
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100/*maxpoolsize*/, 0/*lifetime*/);
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pool=sqlConnectionPools.GetConnectionPool("test",info);
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Tds tds=null;
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//this first one succeeded regardless as long as something answered
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//the phone on port 1433 of localhost
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tds=pool.GetConnection();
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pool.ReleaseConnection(tds);
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// 2nd time thru: This will fail with nullreferenceexception
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// at pool.GetConnection() unless the patch by Rob Wilkens which
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// adds "result=null;" before retry in pool.getConnection() source
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//First let's pretend we're calling this test fresh, as if we
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//call sqlConnection.Open() again :
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info=new TdsConnectionInfo(SERVER/*dummyhost*/,1433/*port*/,
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8192/*pktsize*/,15/*timeout*/,0/*minpoolsize*/,
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100/*maxpoolsize*/, 0/*lifetime*/);
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pool=sqlConnectionPools.GetConnectionPool("test",info);
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//Then: Test for failure (will raise uncaught exception which
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//causes failure of test if bug is not fixed
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tds=pool.GetConnection();
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pool.ReleaseConnection(tds);
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Listener.Stop ();
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//exit
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}
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}
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}
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