-----test 1----
insert one row to empty table
  ta:{empty} cols: 0, rows: 0
  te:{} [root] [nodoc] {text1}
  ta:{empty} cols: 1, rows: 1
  ta:{empty} cols: 1, rows: 1
  te:{} {(null)}
after replace
  te:{} {text1}
  ta:{empty} cols: 1, rows: 1
-----test 2-----
the length of table is 0 so we could not insert element to 1st position
  ta:{empty} cols: 0, rows: 0
table_ins_row: boundary check error: out of bounds
  ta:{empty} cols: 0, rows: 0
tts terminated
