[nhibernate-issues] [NHJIRA] Commented: (NH-2656) First/FirstOrDefault Doesn't Work

[Fabio M. (JIRA) <nh...@gm...>]

    [ http://216.121.112.228/browse/NH-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=21232#action_21232 ] 

Fabio Maulo commented on NH-2656:
---------------------------------

If you really want "make NHibernate Linq provider as good as possible" please provide a directly usable test case.
http://nhforge.org/blogs/nhibernate/archive/2008/10/04/the-best-way-to-solve-nhibernate-bugs-submit-good-unit-test.aspx

> First/FirstOrDefault Doesn't Work
> ---------------------------------
>
>                 Key: NH-2656
>                 URL: http://216.121.112.228/browse/NH-2656
>             Project:  NHibernate
>          Issue Type: Bug
>          Components: Linq Provider
>    Affects Versions: 3.1.0
>            Reporter: Lee Timmins
>
> I have the following tests:
> [TestMethod]
> public void First() {
>     var result = _session.Query<Post>()
>         .OrderBy(p => p.Date)
>         .First(p => p.Comments.Count == 1);
>     Assert.AreEqual(1, result.PostID);
> }
> [TestMethod]
> public void FirstOrDefault() {
>     var result = _session.Query<Post>()
>         .OrderBy(p => p.Date)
>         .FirstOrDefault(p => p.Comments.Count == 1);
>     var result2 = _session.Query<Post>()
>         .OrderBy(p => p.Date)
>         .FirstOrDefault(p => p.Comments.Count == 10);
>     Assert.AreEqual(1, result.PostID);
>     Assert.IsNull(result2);
> }
> They both worked fine in the old Linq provider (changing Query to Linq) but in version 3.1 it throws the error:
> Test method NHibernate3_1.UnitTest.First(OrDefault) threw exception: 
> System.InvalidOperationException: Sequence contains no elements

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://216.121.112.228/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira