Mercurial > pub > bltoolkit
view UnitTests/Linq/Exceptions/Aggregation.cs @ 9:1e85f66cf767 default tip
update bltoolkit
author | nickolay |
---|---|
date | Thu, 05 Apr 2018 20:53:26 +0300 |
parents | f990fcb411a9 |
children |
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using System; using System.Linq; using NUnit.Framework; namespace Data.Exceptions { using Linq; [TestFixture] public class Aggregtion : TestBase { [Test, ExpectedException(typeof(InvalidOperationException))] public void NonNullableMax1() { ForEachProvider(typeof(InvalidOperationException), db => { var value = db.Parent.Where(_ => _.ParentID < 0).Max(_ => _.ParentID); }); } [Test] public void NonNullableMax2() { ForEachProvider(db => { var q = from p in db.Parent select new { max = p.Children.Where(_ => _.ParentID < 0).Max(_ => _.ParentID) }; Assert.Catch<InvalidOperationException>(() => q.ToList()); }); } [Test, ExpectedException(typeof(InvalidOperationException))] public void NonNullableAverage() { ForEachProvider(typeof(InvalidOperationException), db => { var value = db.Parent.Where(_ => _.ParentID < 0).Average(_ => _.ParentID); }); } } }