Haskell: Sample tests give the following error:

test/DaysRepresented/JorgeVS/KataSpec.hs:8:34: error:
    Empty 'do' block
  |
8 |      it " [(10,15), (25,35)] " $ do
  |                                  ^^

test/DaysRepresented/JorgeVS/KataSpec.hs:11:42: error:
    Empty 'do' block
   |
11 |      it " [(2,8), (220,229),(10,16)] " $ do
   |                                          ^^