83 lines
2.3 KiB
C#
83 lines
2.3 KiB
C#
//
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// DataRowExtensionsTest.cs
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//
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// Author:
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// Marek Habersack (mhabersack@novell.com)
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//
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// Copyright (C) 2008 Novell, Inc. http://www.novell.com
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//
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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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using System;
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using System.Collections.Generic;
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using System.Data;
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using NUnit.Framework;
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namespace MonoTests.System.Data
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{
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[TestFixture]
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public class DataRowExtensionsTest
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{
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DataRow SetupRow ()
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{
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DataTable dt = new DataTable ("TestTable");
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DataColumn dc = new DataColumn ("Column1", typeof (string));
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dc.AllowDBNull = true;
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dt.Columns.Add (dc);
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dc = new DataColumn ("Column2", typeof (int));
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dc.AllowDBNull = true;
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dt.Columns.Add (dc);
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DataRow row = dt.NewRow ();
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dt.Rows.Add (row);
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return row;
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}
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[Test]
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public void Field_T_DBNullFieldValue ()
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{
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DataRow row = SetupRow ();
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row ["Column1"] = null;
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row ["Column2"] = DBNull.Value;
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string s = row.Field <string> ("Column1");
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Assert.AreEqual (null, s, "#A1");
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int? i = row.Field <int?> ("Column2");
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Assert.AreEqual (null, i, "#A2");
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}
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[Test]
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[ExpectedException (typeof (InvalidCastException))]
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public void Field_T_DBNullFieldValue_ValueType ()
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{
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DataRow row = SetupRow ();
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row ["Column1"] = null;
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row ["Column2"] = DBNull.Value;
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int i = row.Field <int> ("Column2");
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}
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}
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}
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