mcs/class/Npgsql/Test/DataAdapterTests.cs

   1 // created on 3/5/2003 at 14:29
   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
  25 using System;
  26 using System.Data;
  27 using System.Web.UI.WebControls;
  28 using Npgsql;
  29
  30 using NpgsqlTypes;
  31
  32 using NUnit.Framework;
  33 using NUnit.Core;
  34
  35 namespace NpgsqlTests
  36 {
  37
  38         [TestFixture]
  39         public class DataAdapterTests
  40         {
  41
  42                 private NpgsqlConnection        _conn = null;
  43                 private String                                          _connString = "Server=localhost;User ID=npgsql_tests;Password=npgsql_tests;Database=npgsql_tests;maxpoolsize=2;";
  44
  45                 [SetUp]
  46                 protected void SetUp()
  47                 {
  48                         //NpgsqlEventLog.Level = LogLevel.None;
  49                         //NpgsqlEventLog.Level = LogLevel.Debug;
  50                         //NpgsqlEventLog.LogName = "NpgsqlTests.LogFile";
  51                         _conn = new NpgsqlConnection(_connString);
  52                 }
  53
  54                 [TearDown]
  55                 protected void TearDown()
  56                 {
  57                         if (_conn.State != ConnectionState.Closed)
  58                                 _conn.Close();
  59                 }
  60
  61                 [Test]
  62                 public void InsertWithDataSet()
  63                 {
  64
  65                         _conn.Open();
  66
  67                         DataSet ds = new DataSet();
  68
  69                         NpgsqlDataAdapter da = new NpgsqlDataAdapter("select * from tableb", _conn);
  70
  71                         da.InsertCommand = new NpgsqlCommand("insert into tableb(field_int2, field_timestamp, field_numeric) values (:a, :b, :c)", _conn);
  72
  73                         da.InsertCommand.Parameters.Add(new NpgsqlParameter("a", DbType.Int16));
  74
  75                         da.InsertCommand.Parameters.Add(new NpgsqlParameter("b", DbType.DateTime));
  76
  77                         da.InsertCommand.Parameters.Add(new NpgsqlParameter("c", DbType.Decimal));
  78
  79                         da.InsertCommand.Parameters[0].Direction = ParameterDirection.Input;
  80                         da.InsertCommand.Parameters[1].Direction = ParameterDirection.Input;
  81                         da.InsertCommand.Parameters[2].Direction = ParameterDirection.Input;
  82
  83                         da.InsertCommand.Parameters[0].SourceColumn = "field_int2";
  84                         da.InsertCommand.Parameters[1].SourceColumn = "field_timestamp";
  85                         da.InsertCommand.Parameters[2].SourceColumn = "field_numeric";
  86
  87
  88                         da.Fill(ds);
  89
  90
  91                         DataTable dt = ds.Tables[0];
  92
  93                         DataRow dr = dt.NewRow();
  94                         dr["field_int2"] = 4;
  95                         dr["field_timestamp"] = new DateTime(2003, 03, 03, 14, 0, 0);
  96                         dr["field_numeric"] = 7.3M;
  97
  98                         dt.Rows.Add(dr);
  99
 100
 101                         DataSet ds2 = ds.GetChanges();
 102
 103                         da.Update(ds2);
 104
 105                         ds.Merge(ds2);
 106                         ds.AcceptChanges();
 107
 108
 109                         NpgsqlDataReader dr2 = new NpgsqlCommand("select * from tableb where field_serial > 4", _conn).ExecuteReader();
 110                         dr2.Read();
 111
 112
 113                         Assert.AreEqual(4, dr2[1]);
 114                         Assert.AreEqual(7.3000000M, dr2[3]);
 115
 116                         new NpgsqlCommand("delete from tableb where field_serial > 4", _conn).ExecuteNonQuery();
 117
 118
 119
 120                 }
 121
 122                 [Test]
 123                 public void FillWithEmptyResultset()
 124                 {
 125
 126                   _conn.Open();
 127
 128                         DataSet ds = new DataSet();
 129
 130                         NpgsqlDataAdapter da = new NpgsqlDataAdapter("select * from tableb where field_serial = -1", _conn);
 131
 132
 133                   da.Fill(ds);
 134
 135                   Assert.AreEqual(1, ds.Tables.Count);
 136                   Assert.AreEqual(4, ds.Tables[0].Columns.Count);
 137                   Assert.AreEqual("field_serial", ds.Tables[0].Columns[0].ColumnName);
 138                   Assert.AreEqual("field_int2", ds.Tables[0].Columns[1].ColumnName);
 139                   Assert.AreEqual("field_timestamp", ds.Tables[0].Columns[2].ColumnName);
 140                   Assert.AreEqual("field_numeric", ds.Tables[0].Columns[3].ColumnName);
 141
 142                 }
 143
 144         [Test]
 145         public void FillWithDuplicateColumnName()
 146         {
 147             _conn.Open();
 148             DataSet ds = new DataSet();
 149
 150                         NpgsqlDataAdapter da = new NpgsqlDataAdapter("select field_serial, field_serial from tableb", _conn);
 151
 152                     da.Fill(ds);
 153
 154         }
 155         }
 156 }