29fe61f4f35b21929e136e927f9f70053b7c5cd0
[mono.git] / mcs / class / System.Data.DataSetExtensions / Test / System.Data / DataRowExtensionsTest.cs
1 //
2 // DataRowExtensionsTest.cs
3 //
4 // Author:
5 //   Marek Habersack (mhabersack@novell.com)
6 //
7 // Copyright (C) 2008 Novell, Inc. http://www.novell.com
8 //
9
10 //
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
18 // 
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
21 // 
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30
31 using System;
32 using System.Collections.Generic;
33 using System.Data;
34 using NUnit.Framework;
35
36 namespace MonoTests.System.Data
37 {
38         [TestFixture]
39         public class DataRowExtensionsTest
40         {
41                 DataRow SetupRow ()
42                 {
43                         DataTable dt = new DataTable ("TestTable");
44                         DataColumn dc = new DataColumn ("Column1", typeof (string));
45                         dc.AllowDBNull = true;
46                         dt.Columns.Add (dc);
47
48                         dc = new DataColumn ("Column2", typeof (int));
49                         dc.AllowDBNull = true;
50                         dt.Columns.Add (dc);
51                         
52                         DataRow row = dt.NewRow ();
53                         dt.Rows.Add (row);
54                         return row;
55                 }
56                 
57                 [Test]
58                 public void Field_T_DBNullFieldValue ()
59                 {
60                         DataRow row = SetupRow ();
61                         row ["Column1"] = null;
62                         row ["Column2"] = DBNull.Value;
63                         
64                         string s = row.Field <string> ("Column1");
65                         Assert.AreEqual (null, s, "#A1");
66
67                         int? i = row.Field <int?> ("Column2");
68                         Assert.AreEqual (null, i, "#A2");
69                 }
70
71                 [Test]
72                 [ExpectedException (typeof (StrongTypingException))]
73                 public void Field_T_DBNullFieldValue_ValueType ()
74                 {
75                         DataRow row = SetupRow ();
76                         row ["Column1"] = null;
77                         row ["Column2"] = DBNull.Value;
78
79                         int i = row.Field <int> ("Column2");
80                 }
81         }
82 }