Refactors tests folder to separate different modules

Each module has a different folder and they do not share methods now. At some point they should be split in different repos

test/pisa/unit/conftest.py

@@ -0,0 +1,143 @@
+import pytest
+import random
+import requests
+from time import sleep
+from shutil import rmtree
+from threading import Thread
+from binascii import hexlify
+
+from cryptography.hazmat.backends import default_backend
+from cryptography.hazmat.primitives.asymmetric import ec
+from cryptography.hazmat.primitives import serialization
+
+from apps.cli.blob import Blob
+from pisa.responder import TransactionTracker
+from pisa.watcher import Watcher
+from pisa.tools import bitcoin_cli
+from pisa.db_manager import DBManager
+from pisa.appointment import Appointment
+
+from test.simulator.utils import sha256d
+from test.simulator.transaction import TX
+from test.simulator.bitcoind_sim import run_simulator, HOST, PORT
+
+from common.constants import LOCATOR_LEN_HEX
+from common.cryptographer import Cryptographer
+
+
+@pytest.fixture(scope="session")
+def run_bitcoind():
+    bitcoind_thread = Thread(target=run_simulator, kwargs={"mode": "event"})
+    bitcoind_thread.daemon = True
+    bitcoind_thread.start()
+
+    # It takes a little bit of time to start the API (otherwise the requests are sent too early and they fail)
+    sleep(0.1)
+
+
+@pytest.fixture(scope="session", autouse=True)
+def prng_seed():
+    random.seed(0)
+
+
+@pytest.fixture(scope="session")
+def db_manager():
+    manager = DBManager("test_db")
+    yield manager
+
+    manager.db.close()
+    rmtree("test_db")
+
+
+def generate_keypair():
+    client_sk = ec.generate_private_key(ec.SECP256K1, default_backend())
+    client_pk = client_sk.public_key()
+
+    return client_sk, client_pk
+
+
+def get_random_value_hex(nbytes):
+    pseudo_random_value = random.getrandbits(8 * nbytes)
+    prv_hex = "{:x}".format(pseudo_random_value)
+    return prv_hex.zfill(2 * nbytes)
+
+
+def generate_block():
+    requests.post(url="http://{}:{}/generate".format(HOST, PORT), timeout=5)
+    sleep(0.5)
+
+
+def generate_blocks(n):
+    for _ in range(n):
+        generate_block()
+
+
+def generate_dummy_appointment_data(real_height=True, start_time_offset=5, end_time_offset=30):
+    if real_height:
+        current_height = bitcoin_cli().getblockcount()
+
+    else:
+        current_height = 10
+
+    dispute_tx = TX.create_dummy_transaction()
+    dispute_txid = sha256d(dispute_tx)
+    penalty_tx = TX.create_dummy_transaction(dispute_txid)
+
+    dummy_appointment_data = {
+        "tx": penalty_tx,
+        "tx_id": dispute_txid,
+        "start_time": current_height + start_time_offset,
+        "end_time": current_height + end_time_offset,
+        "to_self_delay": 20,
+    }
+
+    # dummy keys for this test
+    client_sk, client_pk = generate_keypair()
+    client_pk_der = client_pk.public_bytes(
+        encoding=serialization.Encoding.DER, format=serialization.PublicFormat.SubjectPublicKeyInfo
+    )
+
+    locator = Watcher.compute_locator(dispute_txid)
+    blob = Blob(dummy_appointment_data.get("tx"))
+
+    encrypted_blob = Cryptographer.encrypt(blob, dummy_appointment_data.get("tx_id"))
+
+    appointment_data = {
+        "locator": locator,
+        "start_time": dummy_appointment_data.get("start_time"),
+        "end_time": dummy_appointment_data.get("end_time"),
+        "to_self_delay": dummy_appointment_data.get("to_self_delay"),
+        "encrypted_blob": encrypted_blob,
+    }
+
+    signature = Cryptographer.sign(Cryptographer.signature_format(appointment_data), client_sk)
+    pk_hex = hexlify(client_pk_der).decode("utf-8")
+
+    data = {"appointment": appointment_data, "signature": signature, "public_key": pk_hex}
+
+    return data, dispute_tx
+
+
+def generate_dummy_appointment(real_height=True, start_time_offset=5, end_time_offset=30):
+    appointment_data, dispute_tx = generate_dummy_appointment_data(
+        real_height=real_height, start_time_offset=start_time_offset, end_time_offset=end_time_offset
+    )
+
+    return Appointment.from_dict(appointment_data["appointment"]), dispute_tx
+
+
+def generate_dummy_tracker():
+    dispute_txid = get_random_value_hex(32)
+    penalty_txid = get_random_value_hex(32)
+    penalty_rawtx = get_random_value_hex(100)
+    locator = dispute_txid[:LOCATOR_LEN_HEX]
+
+    tracker_data = dict(
+        locator=locator,
+        dispute_txid=dispute_txid,
+        penalty_txid=penalty_txid,
+        penalty_rawtx=penalty_rawtx,
+        appointment_end=100,
+    )
+
+    return TransactionTracker.from_dict(tracker_data)