def has_features(*args):
"""Tests whether a list of features is a subset of the compiled-in features"""
if len(args) == 1 and not isinstance(args[0], str) and hasattr(
args[0], "__iter__"):
check_set = set(args[0])
else:
check_set = set(args)
if not check_set < all_features():
raise RuntimeError("'{}' is not a feature".format(
','.join(check_set - all_features())))
return check_set < set(features())
def test_has_features(self):
for feature in code_info.features():
self.assertTrue(has_features(feature))
for feature in code_info.all_features() - set(code_info.features()):
self.assertFalse(has_features(feature))
with self.assertRaises(RuntimeError) as _:
has_features("NotAFeature")