mcs/class/System.Data/Test/ProviderTests/System.Data.OleDb.jvm/OleDbCommand/OleDbCommand_ExecuteScalar.cs

   1 //
   2 // Copyright (c) 2006 Mainsoft Co.
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
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   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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  22 //
  23
  24 using System;
  25 using System.Data;
  26 using System.Data.OleDb ;
  27
  28 using MonoTests.System.Data.Utils;
  29
  30
  31 using NUnit.Framework;
  32
  33 namespace MonoTests.System.Data.OleDb
  34 {
  35         [TestFixture]
  36         public class OleDbCommand_ExecuteScalar : GHTBase
  37         {
  38                 OleDbConnection con;
  39                 OleDbCommand cmd;
  40
  41                 [SetUp]
  42                 public void SetUp()
  43                 {
  44                         Exception exp = null;
  45                         BeginCase("Setup");
  46                         try
  47                         {
  48                                 con = new OleDbConnection(MonoTests.System.Data.Utils.ConnectedDataProvider.ConnectionString);
  49                                 con.Open();
  50
  51                                 //prepare Data
  52                                 OleDbCommand cmdPrepare = new OleDbCommand("", con);
  53                                 cmdPrepare.CommandText = "DELETE FROM Employees WHERE EmployeeID = 99999";
  54                                 cmdPrepare.ExecuteNonQuery();
  55                                 cmdPrepare.CommandText = "INSERT INTO Employees (EmployeeID, FirstName, LastName) VALUES (99999,'OferXYZ', 'Testing')";
  56                                 cmdPrepare.ExecuteNonQuery();
  57                                 cmdPrepare.Dispose();
  58
  59                                 cmd = new OleDbCommand("", con);
  60                         }
  61                         catch(Exception ex)     {exp = ex;}
  62                         finally {EndCase(exp); exp = null;}
  63                 }
  64
  65                 [TearDown]
  66                 public void TearDown()
  67                 {
  68                         if (con != null)
  69                         {
  70                                 if (con.State == ConnectionState.Open) con.Close();
  71                         }
  72                 }
  73
  74                 public static void Main()
  75                 {
  76                         OleDbCommand_ExecuteScalar tc = new OleDbCommand_ExecuteScalar();
  77                         Exception exp = null;
  78                         try
  79                         {
  80                                 tc.BeginTest("OleDbCommand_ExecuteScalar");
  81                                 tc.SetUp();
  82                                 tc.run();
  83                                 tc.TearDown();
  84                         }
  85                         catch(Exception ex){exp = ex;}
  86                         finally {tc.EndTest(exp);}
  87                 }
  88
  89                 [Test]
  90                 public void run()
  91                 {
  92                         Exception exp = null;
  93                         object objResult = null;
  94
  95                         cmd.CommandText="Select FirstName,City From Employees Where EmployeeID=-1";
  96
  97                         try
  98                         {
  99                                 BeginCase("Execute Scalar");
 100                                 objResult = cmd.ExecuteScalar();
 101                                 Compare(objResult==null,true);
 102                         }
 103                         catch(Exception ex){exp = ex;}
 104                         finally{EndCase(exp); exp = null;}
 105
 106                         cmd.CommandText="Select FirstName,City From Employees Where EmployeeID=99999 ";
 107
 108                         try
 109                         {
 110                                 BeginCase("Execute Scalar");
 111                                 objResult = cmd.ExecuteScalar();
 112                                 Compare(objResult.ToString(), "OferXYZ");
 113                         }
 114                         catch(Exception ex){exp = ex;}
 115                         finally{EndCase(exp); exp = null;}
 116
 117
 118                         try
 119                         {
 120                                 BeginCase("Execute Scalar again");
 121                                 objResult = cmd.ExecuteScalar();
 122                                 Compare(objResult.ToString(), "OferXYZ");
 123                         }
 124                         catch(Exception ex){exp = ex;}
 125                         finally{EndCase(exp); exp = null;}
 126
 127                 }
 128         }
 129 }