def test_is_na_string(self): a = Vector(["a", "b", ""]) assert a.is_na().tolist() == [False, False, True]
def test_is_na_float(self): a = Vector([1, 2, None]) assert a.is_na().tolist() == [False, False, True]
def test_is_na_object(self): a = Vector([self, self, None]) assert a.is_na().tolist() == [False, False, True]
def test_is_na_datetime(self): a = Vector([DATETIME, DATETIME, NaT]) assert a.is_na().tolist() == [False, False, True]