nucypher/tests/fixtures.py

99 lines
3.1 KiB
Python

import datetime
import os
import pytest
from nkms.characters import Alice, Bob
from nkms.crypto.kits import MessageKit
from nkms.crypto.powers import SigningPower, EncryptingPower
from nkms.network import blockchain_client
from nkms.policy.constants import NON_PAYMENT
from tests.utilities import NUMBER_OF_URSULAS_IN_NETWORK, MockNetworkyStuff, make_ursulas, \
URSULA_PORT, EVENT_LOOP
from sqlalchemy.engine import create_engine
from nkms.keystore import keystore
from nkms.keystore.db import Base
from umbral import pre
@pytest.fixture(scope="module")
def idle_policy(alice, bob):
"""
Creates a PolicyGroup, in a manner typical of how Alice might do it, with a unique uri.
"""
alice.__resource_id += b"/unique-again" # A unique name each time, like a path.
n = NUMBER_OF_URSULAS_IN_NETWORK
policy_group = alice.create_policy(
bob,
alice.__resource_id,
m=3,
n=n,
)
return policy_group
@pytest.fixture(scope="module")
def enacted_policy(idle_policy, ursulas):
# Alice has a policy in mind and knows of enough qualifies Ursulas; she crafts an offer for them.
deposit = NON_PAYMENT
contract_end_datetime = datetime.datetime.now() + datetime.timedelta(days=5)
# contract = Contract(idle_policy.n, deposit, contract_end_datetime)
networky_stuff = MockNetworkyStuff(ursulas)
found_ursulas = idle_policy.find_ursulas(networky_stuff, deposit, expiration=contract_end_datetime)
idle_policy.match_kfrags_to_found_ursulas(found_ursulas)
idle_policy.enact(networky_stuff) # REST call happens here, as does population of TreasureMap.
return idle_policy
@pytest.fixture(scope="module")
def alice(ursulas):
ALICE = Alice()
ALICE.server.listen(8471)
ALICE.__resource_id = b"some_resource_id"
EVENT_LOOP.run_until_complete(ALICE.server.bootstrap([("127.0.0.1", u.dht_port) for u in ursulas]))
return ALICE
@pytest.fixture(scope="module")
def bob(alice, ursulas):
BOB = Bob()
BOB.server.listen(8475)
EVENT_LOOP.run_until_complete(BOB.server.bootstrap([("127.0.0.1", URSULA_PORT)]))
return BOB
@pytest.fixture(scope="module")
def ursulas():
URSULAS = make_ursulas(NUMBER_OF_URSULAS_IN_NETWORK, URSULA_PORT)
yield URSULAS
# Remove the DBs that have been sprayed hither and yon.
for _u in range(NUMBER_OF_URSULAS_IN_NETWORK):
port = URSULA_PORT + _u
os.remove("test-{}".format(port))
blockchain_client._ursulas_on_blockchain.clear()
@pytest.fixture(scope="module")
def treasure_map_is_set_on_dht(alice, enacted_policy):
enacted_policy.publish_treasure_map()
@pytest.fixture(scope="module")
def test_keystore():
engine = create_engine('sqlite:///:memory:')
Base.metadata.create_all(engine)
test_keystore = keystore.KeyStore(engine)
yield test_keystore
@pytest.fixture(scope="module")
def alicebob_side_channel(alice):
plaintext = b"Welcome to the flippering."
ciphertext, capsule = pre.encrypt(alice.public_key(EncryptingPower), plaintext)
return MessageKit(ciphertext=ciphertext, capsule=capsule,
alice_pubkey=alice.public_key(EncryptingPower))