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_build_img_path_none_values():
chapter = None
page = None
expected_output = '/None/None'
assert utils.build_img_path(chapter, 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)
def test_build_img_path(page_good_format):
chapter = page_good_format["chapter"]
page = page_good_format["page"]
expected_output = '/manga_ch1/x_v001-009'
assert utils.build_img_path(chapter,page) == expected_output