getFirstHeaderBlock()            - hb1:child(1) - Value = Test1
getNextHeaderBlock()             - hb2:child(1) - Value = Test2
getNextHeaderBlock()             - hb3:child(1) - Value = Test3
getNextHeaderBlock()             - HeaderBlock is NULL
getHeaderBlock("hb2", namespace) - hb2:child(1) - Value = Test2
getCurrentHeaderBlock()          - HeaderBlock is NULL
getHeaderBlock("hb3", namespace) - hb3:child(1) - Value = Test3
getHeaderBlock("hb1", namespace) - hb1:child(1) - Value = Test1
getFirstHeaderBlock()            - hb1:child(1) - Value = Test1
getCurrentHeaderBlock()          - hb1:child(1) - Value = Test1
getNextHeaderBlock()             - hb2:child(1) - Value = Test2
getCurrentHeaderBlock()          - hb2:child(1) - Value = Test2
5