public override void SetUp ()
 {
   base.SetUp ();
   _source2 = Expression.Constant (new[] { "test1", "test2" });
   _node = new UnionExpressionNode (
       CreateParseInfo (SourceNode, "u", UnionExpressionNode.SupportedMethods[0].MakeGenericMethod (typeof (int))), _source2);
 }
 public override void SetUp ()
 {
   base.SetUp ();
   _source2 = Expression.Constant (new[] { "test1", "test2" });
   _node = new UnionExpressionNode (
       CreateParseInfo (SourceNode, "u", ReflectionUtility.GetMethod (() => Queryable.Union<int> (null, null))),
       _source2);
 }