MSTest Error after upgrade to 3.1.0

[ESwann]

I've just upgraded a project ot 3.1 and began getting failures on
several integration tests. The errors only occur when I run the tests
in MSTest. If I debug the tests in MSTest or run them in the
Resharper runner, no issues. Unfortunatley because our build
mechanism is TFS, MSTest is our standard runner when performing builds
and changing this is not an option at this point. Looks like the
Remotion parser itself thinks there is some duplicate entry when
trying to parse the LINQ query. Again, this only happens when the
situation above is met. This did not occur in NH 3.0. Any ideas
would be appreciated.

The exception I see is:

Test method
Fsc.DataServices.Tests.Integration.ServiceFixtures.ProcedureContractDataServiceFixture.GetProcedureContracts_ShouldReturnRecords_WithValidStationId_WithValidProcedure_WithValidContractDateOf20110903
threw exception:
System.TypeInitializationException: The type initializer for
'NHibernate.Linq.NhRelinqQueryParser' threw an exception. --->
System.InvalidOperationException: Sequence contains more than one
matching element

And the stack trace is:

System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2
predicate)
Remotion.Data.Linq.Parsing.ExpressionTreeVisitors.Transformation.ExpressionTransformerRegistry.CreateDefault()
NHibernate.Linq.NhRelinqQueryParser..cctor() in d:\CSharp\NH\NH
\nhibernate\src\NHibernate\Linq\NhRelinqQueryParser.cs: line 26
NHibernate.Linq.NhRelinqQueryParser.Parse(Expression expression)
NHibernate.Linq.NhLinqExpression.Translate(ISessionFactoryImplementor
sessionFactory) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Linq
\NhLinqExpression.cs: line 65
NHibernate.Hql.Ast.ANTLR.ASTQueryTranslatorFactory.CreateQueryTranslators(String
queryIdentifier, IQueryExpression queryExpression, String
collectionRole, Boolean shallow, IDictionary`2 filters,
ISessionFactoryImplementor factory) in d:\CSharp\NH\NH\nhibernate\src
\NHibernate\Hql\Ast\ANTLR\ASTQueryTranslatorFactory.cs: line 27
NHibernate.Engine.Query.HQLExpressionQueryPlan.CreateTranslators(String
expressionStr, IQueryExpression queryExpression, String
collectionRole, Boolean shallow, IDictionary`2 enabledFilters,
ISessionFactoryImplementor factory) in d:\CSharp\NH\NH\nhibernate\src
\NHibernate\Engine\Query\HQLExpressionQueryPlan.cs: line 34
NHibernate.Engine.Query.HQLExpressionQueryPlan..ctor(String
expressionStr, IQueryExpression queryExpression, String
collectionRole, Boolean shallow, IDictionary`2 enabledFilters,
ISessionFactoryImplementor factory) in d:\CSharp\NH\NH\nhibernate\src
\NHibernate\Engine\Query\HQLExpressionQueryPlan.cs: line 23
NHibernate.Engine.Query.HQLExpressionQueryPlan..ctor(String
expressionStr, IQueryExpression queryExpression, Boolean shallow,
IDictionary`2 enabledFilters, ISessionFactoryImplementor factory) in d:
\CSharp\NH\NH\nhibernate\src\NHibernate\Engine\Query
\HQLExpressionQueryPlan.cs: line 17
NHibernate.Engine.Query.QueryPlanCache.GetHQLQueryPlan(IQueryExpression
queryExpression, Boolean shallow, IDictionary`2 enabledFilters) in d:
\CSharp\NH\NH\nhibernate\src\NHibernate\Engine\Query
\QueryPlanCache.cs: line 88
NHibernate.Impl.AbstractSessionImpl.GetHQLQueryPlan(IQueryExpression
queryExpression, Boolean shallow) in d:\CSharp\NH\NH\nhibernate\src
\NHibernate\Impl\AbstractSessionImpl.cs: line 312
NHibernate.Impl.AbstractSessionImpl.CreateQuery(IQueryExpression
queryExpression) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Impl
\AbstractSessionImpl.cs: line 268
NHibernate.Linq.NhQueryProvider.PrepareQuery(Expression expression,
IQuery& query, NhLinqExpression& nhQuery) in d:\CSharp\NH\NH\nhibernate
\src\NHibernate\Linq\NhQueryProvider.cs: line 43
NHibernate.Linq.NhQueryProvider.Execute(Expression expression) in d:
\CSharp\NH\NH\nhibernate\src\NHibernate\Linq\NhQueryProvider.cs: line
26
NHibernate.Linq.NhQueryProvider.Execute[TResult](Expression
expression) in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Linq
\NhQueryProvider.cs: line 103
Remotion.Data.Linq.QueryableBase`1.GetEnumerator()
System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
Fsc.DataServices.Ods.DataAccess.Reference.Services.ReferenceDataService.GetContracts(ContractSearchCriteria
criteria) in C:\Projects\Fsc\Fsc.DataServices\trunk\src\Main
\Fsc.DataServices.Ods.DataAccess\Reference\Services
\ReferenceDataService.cs: line 127
Fsc.DataServices.Tests.Integration.ServiceFixtures.RasReferralGetContractDataServiceTestFixture.GetContract_ShouldReturnRecords_WithValidStationId()
in C:\Projects\Fsc\Fsc.DataServices\trunk\src\Tests
\Fsc.DataServices.Tests.Integration\ServiceFixtures
\ContractDataServiceFixture.cs: line 37

[Nicholas Blumhardt]

While we have no solution as yet, we've hit the same issue on our
project in the same circumstances.

The problem (thanks @xtoff) would appear to be that the
ExpressionTransformerRegistry is trying to get the CLR version via
something like:

GetReferencedAssemblies().Where(a => a.Name == "mscorlib").Single()

For some reason multiple "mscorlib"s appear in this list when running
under MSTest. It's hard to say whether this is an NHibernate
(ILMerge?) problem or an MSTest oddity.

Cheers,
Nick

[Fabio Maulo]

Please report it in our dev-list.

Thanks.

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Fabio Maulo

[José F. Romaniello]

I bet the isolated thing of mstests is not so isolated..

2011/3/28, Nicholas Blumhardt <nicholas....@gmail.com>:

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Enviado desde mi dispositivo móvil

[Patrick Earl]

Here's the remotion thread about it:

http://groups.google.com/group/re-motion-users/browse_thread/thread/565a652b03682092

Patrick Earl