class/Npgsql/Test/ConnectionTests.cs

   1 // project created on 30/11/2002 at 22:00
   2 //
   3 // Author:
   4 //      Francisco Figueiredo Jr. <fxjrlists@yahoo.com>
   5 //
   6 //      Copyright (C) 2002 The Npgsql Development Team
   7 //      npgsql-general@gborg.postgresql.org
   8 //      http://gborg.postgresql.org/project/npgsql/projdisplay.php
   9 //
  10 // This library is free software; you can redistribute it and/or
  11 // modify it under the terms of the GNU Lesser General Public
  12 // License as published by the Free Software Foundation; either
  13 // version 2.1 of the License, or (at your option) any later version.
  14 //
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 // Lesser General Public License for more details.
  19 //
  20 // You should have received a copy of the GNU Lesser General Public
  21 // License along with this library; if not, write to the Free Software
  22 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23
  24 using System;
  25 using Npgsql;
  26 using System.Data;
  27
  28 using NUnit.Framework;
  29
  30 namespace NpgsqlTests
  31 {
  32
  33
  34
  35         [TestFixture]
  36         public class ConnectionTests
  37         {
  38                 NpgsqlConnection _conn;
  39
  40                 [SetUp]
  41                 protected void SetUp()
  42                 {
  43                         //NpgsqlEventLog.Level = LogLevel.None;
  44                         //NpgsqlEventLog.Level = LogLevel.Debug;
  45                         //NpgsqlEventLog.LogName = "NpgsqlTests.LogFile";
  46                         _conn = new NpgsqlConnection (TestConfiguration.NpgsqlConnectionString);
  47                 }
  48
  49                 [TearDown]
  50                 protected void TearDown()
  51                 {
  52                         if (_conn != null)
  53                                 _conn.Close();
  54                 }
  55
  56
  57                 [Test]
  58                 public void Open()
  59                 {
  60                         try{
  61                                 _conn.Open();
  62                                 //Assert.AreEqual("ConnectionOpen", ConnectionState.Open, _conn.State);
  63                         } catch (Exception e)
  64                         {
  65                                 Console.WriteLine(e.ToString());
  66                         }
  67
  68
  69                 }
  70
  71                 [Test]
  72                 public void ChangeDatabase()
  73                 {
  74                         _conn.Open();
  75
  76                         _conn.ChangeDatabase("template1");
  77
  78                         NpgsqlCommand command = new NpgsqlCommand("select current_database()", _conn);
  79
  80                         String result = (String)command.ExecuteScalar();
  81
  82                         Assert.AreEqual("template1", result);
  83
  84                 }
  85
  86                 [Test]
  87                 [ExpectedException(typeof(InvalidOperationException))]
  88                 public void NestedTransaction()
  89                 {
  90                         _conn.Open();
  91
  92             NpgsqlTransaction t = null;
  93             try
  94             {
  95                             t = _conn.BeginTransaction();
  96
  97                             t = _conn.BeginTransaction();
  98             }
  99             catch(Exception e)
 100             {
 101                 // Catch exception so we call rollback the transaction initiated.
 102                 // This way, the connection pool doesn't get a connection with a transaction
 103                 // started.
 104                 t.Rollback();
 105                 throw e;
 106             }
 107
 108                 }
 109
 110                 [Test]
 111                 public void SequencialTransaction()
 112                 {
 113                         _conn.Open();
 114
 115                         NpgsqlTransaction t = _conn.BeginTransaction();
 116
 117                         t.Rollback();
 118
 119                         t = _conn.BeginTransaction();
 120
 121                         t.Rollback();
 122
 123
 124                 }
 125
 126         }
 127 }