def test_increment_page_number_good_format(page_good_format):
chapter = page_good_format["chapter"]
page = page_good_format["page"]
current_page = utils.build_img_path(chapter, page)
next_page = utils.increment_page_number(current_page)
expected_output = '/manga_ch1/x_v001-010'
assert next_page == expected_output
def test_is_last_page(page_good_format, last_page_list) :
page = utils.increment_page_number(page_good_format["page"])
assert utils.is_last_page(page, last_page_list) == True
def test_increment_page_number_no_zero(page_no_zeroes):
page = page_no_zeroes["page"]
next_page = utils.increment_page_number(page)
expected_output = 'x_v1-010'
assert next_page == expected_output
def test_increment_page_number_bad_format(page_bad_format):
with pytest.raises(ValueError):
current_page = utils.build_img_path(page_bad_format["chapter"],
page_bad_format["page"])
utils.increment_page_number(current_page)
