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1 using System;
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2 using NUnit.Framework;
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3 using BLToolkit.DataAccess;
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4
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5 namespace HowTo.DataAccess
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6 {
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7 [TestFixture]
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8 public class ParamNullValue
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9 {
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10 public abstract class TestAccessor : DataAccessor
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11 {
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12 public abstract Person SelectByKey([/*[a]*/ParamNullValue/*[/a]*/(1)] int id);
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13 }
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14
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15 [Test]
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16 public void Test()
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17 {
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18 TestAccessor ta = DataAccessor.CreateInstance<TestAccessor>();
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19
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20 // Parameter id == 1 will be replaced with NULL
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21 //
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22 Person p1 = ta.SelectByKey(1);
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23 Assert.IsNull(p1);
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24
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25 // Parameter id == 2 will be send as is
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26 //
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27 Person p2 = ta.SelectByKey(2);
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28 Assert.IsNotNull(p2);
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29 }
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30 }
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31 }
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