def test_format_file():
new_file = {
'title_id': '30',
'tape_number': '10',
'side_id': 'A',
'title': 'Battlefield Earth',
'sub_chapter': '20',
'file_type': 'mp4a'
}
expected_name = '10A20_Battlefield Earth.mp4a'
assert filenamer(new_file) == expected_name
def test_filenamer_formats_filename_correctly():
for truthy, original, parsed, formatted in correct_title_names:
if truthy:
assert filenamer(parsed) == formatted
else:
assert filenamer(parsed) != formatted