def test_freeze_filters(self):
data = [
[1, 2, 3],
[2, 3, 4]
]
s = FilterableSheet(data)
s.add_filter(EvenRowFilter())
s.freeze_filters()
assert s.row[0] == [1, 2, 3]
assert s.column[0] == [1]
def test_non_filter(self):
data = []
s = FilterableSheet(data)
s.filter("abc") # bang