def test_idempotency():
ulid = ULID()
assert ULID.from_bytes(ulid.bytes) == ulid
assert ULID.from_str(str(ulid)) == ulid
assert ULID.from_uuid(ulid.to_uuid()) == ulid
assert ULID.from_int(int(ulid)) == ulid
assert ULID.from_hex(ulid.hex) == ulid
def test_ulid():
ulid = ULID()
t = time.time()
now = utcnow()
assert len(ulid.bytes) == constants.BYTES_LEN
assert len(str(ulid)) == constants.REPR_LEN
assert all(c in base32.ENCODE for c in str(ulid))
assert isinstance(ulid.to_uuid(), uuid.UUID)
assert isinstance(ulid.timestamp, float)
assert ulid.timestamp == pytest.approx(t)
assert isinstance(ulid.datetime, datetime)
datetimes_almost_equal(ulid.datetime, now)