message: add a simpler test
diff: @@ -15,6 +15,19 @@ class MLDB2108SplitStringTest(MldbUnitTest): # noqa
  [ "result", "A", "B", "C" ]
  ])
  + def test_row_no_as(self):
  + res = mldb.query("""
  + SELECT token_split(x, '::')
  + FROM (SELECT 'A::B::C' as x)
  + """)
  + self.assertTableResultEquals(res, [
  + [ "_rowName",
  + "token_split(x, '::').0",
  + "token_split(x, '::').1",
  + "token_split(x, '::').2" ],
  + [ "result", "A", "B", "C" ]
  + ])
  +
  def test_single(self):
  res = mldb.query("SELECT token_split(x, ' ')[\"2\"] AS x FROM (SELECT 'The Quick Brown Fox' as x)")
  self.assertTableResultEquals(res, [
  