public void CanExecuteUntypedExpression() { Document <Entity>().With(x => x.Property); var queryProvider = new QueryProvider( (DocumentSession)store.OpenSession(), store.Configuration.GetOrCreateDesignFor(typeof(Entity))); queryProvider.ExecuteEnumerable <object>( Expression.Call( Expression.Constant(new object()), typeof(Queryable).GetMethod("Where"), Expression.Lambda( Expression.MakeBinary( ExpressionType.Equal, Expression.Constant(1), Expression.Constant(1))))); }