public void ProviderExtensions_RegionInPosition_ComplexVariableAndPositionIsRecordset_OnlyRecordsetReturned()
{
const string data = "[[[[var1]][[var2]][[rec([[indexVar]]).fielA]]]]";
var region = data.RegionInPostion(21);
Assert.AreEqual("[[rec([[indexVar]]).fielA]]", region.Name);
Assert.AreEqual(18, region.StartIndex);
}