nucypher/tests/mock/interfaces.py

76 lines
2.7 KiB
Python

import json
from contextlib import contextmanager
from typing import Union
from nucypher.blockchain.eth.clients import EthereumClient
from nucypher.blockchain.eth.networks import NetworksInventory
from nucypher.blockchain.eth.registry import (
BaseContractRegistry,
CanonicalRegistrySource,
RegistrySourceManager
)
from nucypher.config.constants import TEMPORARY_DOMAIN
from tests.constants import MOCK_ETH_PROVIDER_URI
from tests.utils.blockchain import TesterBlockchain
@contextmanager
def mock_registry_source_manager(test_registry):
class MockRegistrySource(CanonicalRegistrySource):
name = "Mock Registry Source"
is_primary = False
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
if self.network != TEMPORARY_DOMAIN:
raise ValueError(f"Somehow, MockRegistrySource is trying to get a registry for '{self.network}'. "
f"Only '{TEMPORARY_DOMAIN}' is supported.'")
def get_publication_endpoint(self) -> str:
return f":mock-registry-source:/{self.network}/{self.registry_name}"
def fetch_latest_publication(self) -> Union[str, bytes]:
self.logger.debug(f"Reading registry at {self.get_publication_endpoint()}")
if self.registry_name == BaseContractRegistry.REGISTRY_NAME:
registry_data = test_registry.read()
raw_registry_data = json.dumps(registry_data)
return raw_registry_data
real_networks = NetworksInventory.NETWORKS
real_eth_networks = NetworksInventory.ETH_NETWORKS
real_poly_networks = NetworksInventory.POLY_NETWORKS
try:
RegistrySourceManager._FALLBACK_CHAIN = (MockRegistrySource,)
NetworksInventory.NETWORKS = (TEMPORARY_DOMAIN,)
NetworksInventory.ETH_NETWORKS = (TEMPORARY_DOMAIN,)
NetworksInventory.POLY_NETWORKS = (TEMPORARY_DOMAIN,)
yield real_networks
finally:
NetworksInventory.POLY_NETWORKS = real_poly_networks
NetworksInventory.ETH_NETWORKS = real_eth_networks
NetworksInventory.NETWORKS = real_networks
class MockBlockchain(TesterBlockchain):
ETH_PROVIDER_URI = MOCK_ETH_PROVIDER_URI
def __init__(self):
super().__init__(compile_now=False)
class MockEthereumClient(EthereumClient):
def __init__(self, w3):
super().__init__(w3=w3, node_technology=None, version=None, platform=None, backend=None)
def connect(self, *args, **kwargs) -> bool:
if 'compile_now' in kwargs:
raise ValueError("Mock testerchain cannot handle solidity source compilation.")
return super().connect(compile_now=False, *args, **kwargs)