def test_paginator__get_page_info(kw, total, previous, next, start, end):
paginator = Paginator(**kw)
page_info = paginator.get_page_info(total)
assert page_info.has_previous_page is previous
assert page_info.has_next_page is next
assert page_info.start_cursor == start if start is None else encode_cursor(
start)
assert page_info.end_cursor == end if end is None else encode_cursor(end)
def test_encode_and_decode_cursor():
assert decode_cursor(encode_cursor(42)) == 42
def test_encode_cursor(num, cursor):
assert encode_cursor(num) == cursor
def test_paginator__custom_per_page():
paginator = Paginator(per_page=5)
assert paginator.per_page == 5
assert paginator.slice_from == 0
assert paginator.slice_to == 5
@pytest.mark.parametrize(
"kw, slice_from, slice_to",
[
({
"first": 15
}, 0, 15),
({
"first": 5,
"after": encode_cursor(3)
}, 3, 8),
({
"last": 8,
"before": encode_cursor(20)
}, 11, 19),
# overflow of slice_from
({
"last": 100,
"before": encode_cursor(42)
}, 0, 41),
# preffer first before last if both provided
({
"first": 20,
"last": 4
}, 0, 20),