public void ProviderExtensions_RegionInPosition_ComplexVariableAndPositionIsRecordsetIndex_OnlyRecordsetIndexReturned()
{
const string data = "[[[[var1]][[var2]][[rec([[indexVar]]).fielA]]]]";
var region = data.RegionInPostion(27);
Assert.AreEqual("[[indexVar]]", region.Name);
Assert.AreEqual(24, region.StartIndex);
}