def validate_accept(produced_content_types: Iterable,
accept_headers: MIMEAccept):
if not len(accept_headers):
accept_headers = MIMEAccept([('*/*', 1)])
# Flask does not like empty content types, but we use them.
content_type = accept_headers.best_match(
filter(lambda x: x != '', produced_content_types))
if content_type is None:
if '*/*' in accept_headers and '' in produced_content_types:
return ''
raise NotAcceptableError(
description=
'This endpoint only returns one of the following content types: %s'
% ', '.join(produced_content_types))
return content_type
def test_mime_accept(self, values, matches, default, expect):
accept = MIMEAccept(values)
match = accept.best_match(matches, default=default)
assert match == expect
