def test_advertisement_to_and_from_sedes_payload():
advertisement = AdvertisementFactory()
sedes_payload = advertisement.to_sedes_payload()
result = Advertisement.from_sedes_payload(sedes_payload)
assert result == advertisement
def test_advertisement_encoded_size(content_key):
advertisement = AdvertisementFactory(content_key=content_key)
encoded = ssz.encode(advertisement.to_sedes_payload(), sedes=AdvertisementSedes)
assert len(encoded) == ADVERTISEMENT_FIXED_SIZE + len(content_key) - 4