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1 using System;
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2 using System.Linq;
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3
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4 using NUnit.Framework;
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5
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6 namespace Data.Exceptions
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7 {
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8 using Linq;
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9
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10 [TestFixture]
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11 public class Aggregtion : TestBase
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12 {
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13 [Test, ExpectedException(typeof(InvalidOperationException))]
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14 public void NonNullableMax1()
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15 {
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16 ForEachProvider(typeof(InvalidOperationException), db =>
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17 {
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18 var value = db.Parent.Where(_ => _.ParentID < 0).Max(_ => _.ParentID);
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19 });
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20 }
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21
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22 [Test]
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23 public void NonNullableMax2()
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24 {
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25 ForEachProvider(db =>
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26 {
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27 var q =
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28 from p in db.Parent
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29 select new
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30 {
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31 max = p.Children.Where(_ => _.ParentID < 0).Max(_ => _.ParentID)
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32 };
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33
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34 Assert.Catch<InvalidOperationException>(() => q.ToList());
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35 });
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36 }
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37
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38 [Test, ExpectedException(typeof(InvalidOperationException))]
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39 public void NonNullableAverage()
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40 {
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41 ForEachProvider(typeof(InvalidOperationException), db =>
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42 {
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43 var value = db.Parent.Where(_ => _.ParentID < 0).Average(_ => _.ParentID);
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44 });
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45 }
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46 }
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47 }
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