mirror of https://github.com/nucypher/nucypher.git
336 lines
9.6 KiB
Python
336 lines
9.6 KiB
Python
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import datetime
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from unittest.mock import Mock, PropertyMock
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import pytest
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from web3 import HTTPProvider, IPCProvider, WebsocketProvider
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from nucypher.blockchain.eth.clients import (
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AlchemyClient,
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GanacheClient,
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GethClient,
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InfuraClient,
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ParityClient,
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)
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from nucypher.blockchain.eth.interfaces import BlockchainInterface
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from nucypher.utilities.networking import LOOPBACK_ADDRESS
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DEFAULT_GAS_PRICE = 42
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GAS_PRICE_FROM_STRATEGY = 1234
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#
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# Mock Providers
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#
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class MockGethProvider:
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endpoint_uri = 'file:///ipc.geth'
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client_version = 'Geth/v1.4.11-stable-fed692f6/darwin/go1.7'
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class MockParityProvider:
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endpoint_uri = 'file:///ipc.parity'
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client_version = 'Parity-Ethereum/v2.5.1-beta-e0141f8-20190510/x86_64-linux-gnu/rustc1.34.1'
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class MockGanacheProvider:
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endpoint_uri = 'http://ganache:8445'
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client_version = 'EthereumJS TestRPC/v2.1.5/ethereum-js'
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class MockInfuraProvider:
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endpoint_uri = 'wss://:@goerli.infura.io/ws/v3/1234567890987654321abcdef'
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client_version = 'Geth/v1.8.23-omnibus-2ad89aaa/linux-amd64/go1.11.1'
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class MockAlchemyProvider:
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endpoint_uri = 'https://eth-rinkeby.alchemyapi.io/v2/1234567890987654321abcdef'
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client_version = 'Geth/v1.9.20-stable-979fc968/linux-amd64/go1.15'
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class MockWebSocketProvider:
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endpoint_uri = f'ws://{LOOPBACK_ADDRESS}:8546'
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client_version = 'Geth/v1.8.23-omnibus-2ad89aaa/linux-amd64/go1.11.1'
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class SyncedMockW3Eth:
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# Support older and newer versions of web3 py in-test
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version = 5
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chain_id = hex(5)
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block_number = 5
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def getBlock(self, blockNumber):
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return {
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'timestamp': datetime.datetime.timestamp(datetime.datetime.now() - datetime.timedelta(seconds=25))
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}
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class MockedW3GethWithPeers:
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@property
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def admin(self):
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class GethAdmin:
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def peers(self):
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return [1, 2, 3]
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return GethAdmin()
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class MockedW3GethWithNoPeers:
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@property
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def admin(self):
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class GethAdmin:
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def peers(self):
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return []
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return GethAdmin()
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#
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# Mock Web3
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#
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class SyncedMockWeb3:
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net = SyncedMockW3Eth()
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eth = SyncedMockW3Eth()
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geth = MockedW3GethWithPeers()
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def __init__(self, provider):
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self.provider = provider
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self.middleware_onion = Mock()
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@property
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def client_version(self):
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return self.provider.client_version
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@property
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def is_connected(self):
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return lambda: True
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#
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# Mock Blockchain
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#
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class BlockchainInterfaceTestBase(BlockchainInterface):
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Web3 = SyncedMockWeb3
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def _configure_registry(self, *args, **kwargs):
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pass
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def _setup_solidity(self, *args, **kwargs):
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pass
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def attach_middleware(self):
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pass
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class ProviderTypeTestClient(BlockchainInterfaceTestBase):
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def __init__(self,
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expected_provider_class,
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actual_provider_to_attach,
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*args,
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**kwargs):
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super().__init__(*args, **kwargs)
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self.expected_provider_class = expected_provider_class
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self.test_provider_to_attach = actual_provider_to_attach
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def _attach_blockchain_provider(self, *args, **kwargs) -> None:
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super()._attach_blockchain_provider(*args, **kwargs)
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# check type
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assert isinstance(self.provider, self.expected_provider_class)
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super()._attach_blockchain_provider(provider=self.test_provider_to_attach)
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class InfuraTestClient(BlockchainInterfaceTestBase):
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def _attach_blockchain_provider(self, *args, **kwargs) -> None:
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super()._attach_blockchain_provider(provider=MockInfuraProvider())
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class AlchemyTestClient(BlockchainInterfaceTestBase):
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def _attach_blockchain_provider(self, *args, **kwargs) -> None:
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super()._attach_blockchain_provider(provider=MockAlchemyProvider())
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class GethClientTestBlockchain(BlockchainInterfaceTestBase):
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def _attach_blockchain_provider(self, *args, **kwargs) -> None:
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super()._attach_blockchain_provider(provider=MockGethProvider())
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class ParityClientTestInterface(BlockchainInterfaceTestBase):
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def _attach_blockchain_provider(self, *args, **kwargs) -> None:
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super()._attach_blockchain_provider(provider=MockParityProvider())
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class GanacheClientTestInterface(BlockchainInterfaceTestBase):
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def _attach_blockchain_provider(self, *args, **kwargs) -> None:
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super()._attach_blockchain_provider(provider=MockGanacheProvider())
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def test_client_no_provider():
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with pytest.raises(BlockchainInterface.NoProvider):
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interface = BlockchainInterfaceTestBase()
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interface.connect()
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def test_geth_web3_client():
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interface = GethClientTestBlockchain(endpoint="file:///ipc.geth")
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interface.connect()
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assert isinstance(interface.client, GethClient)
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assert interface.client.node_technology == 'Geth'
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assert interface.client.node_version == 'v1.4.11-stable-fed692f6'
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assert interface.client.platform == 'darwin'
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assert interface.client.backend == 'go1.7'
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assert interface.client.is_local is False
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assert interface.client.chain_id == 5 # Hardcoded above
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def test_autodetect_provider_type_file(tempfile_path):
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interface = ProviderTypeTestClient(
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endpoint=str(tempfile_path), # existing file for test
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expected_provider_class=IPCProvider,
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actual_provider_to_attach=MockGethProvider(),
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)
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interface.connect()
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assert isinstance(interface.client, GethClient)
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def test_autodetect_provider_type_file_none_existent():
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with pytest.raises(BlockchainInterface.UnsupportedProvider):
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interface = BlockchainInterfaceTestBase(endpoint="/none_existent.ipc.geth")
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interface.connect()
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def test_detect_provider_type_file():
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interface = ProviderTypeTestClient(
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endpoint="file:///ipc.geth",
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expected_provider_class=IPCProvider,
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actual_provider_to_attach=MockGethProvider(),
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)
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interface.connect()
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assert isinstance(interface.client, GethClient)
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def test_detect_provider_type_ipc():
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interface = ProviderTypeTestClient(
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endpoint="ipc:///ipc.geth",
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expected_provider_class=IPCProvider,
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actual_provider_to_attach=MockGethProvider(),
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)
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interface.connect()
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assert isinstance(interface.client, GethClient)
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def test_detect_provider_type_http():
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interface = ProviderTypeTestClient(
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endpoint="http://ganache:8445",
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expected_provider_class=HTTPProvider,
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actual_provider_to_attach=MockGanacheProvider(),
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)
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interface.connect()
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assert isinstance(interface.client, GanacheClient)
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def test_detect_provider_type_https():
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interface = ProviderTypeTestClient(
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endpoint="https://ganache:8445",
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expected_provider_class=HTTPProvider,
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actual_provider_to_attach=MockGanacheProvider(),
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)
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interface.connect()
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assert isinstance(interface.client, GanacheClient)
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def test_detect_provider_type_ws():
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interface = ProviderTypeTestClient(
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endpoint=f"ws://{LOOPBACK_ADDRESS}:8546",
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expected_provider_class=WebsocketProvider,
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actual_provider_to_attach=MockWebSocketProvider(),
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)
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interface.connect()
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assert isinstance(interface.client, GethClient)
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def test_infura_web3_client():
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interface = InfuraTestClient(
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endpoint="wss://:@goerli.infura.io/ws/v3/1234567890987654321abcdef"
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)
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interface.connect()
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assert isinstance(interface.client, InfuraClient)
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assert interface.client.node_technology == 'Geth'
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assert interface.client.node_version == 'v1.8.23-omnibus-2ad89aaa'
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assert interface.client.platform == 'linux-amd64'
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assert interface.client.backend == 'go1.11.1'
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assert interface.client.is_local is False
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assert interface.client.chain_id == 5
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assert interface.client.unlock_account('address', 'password') # Returns True on success
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def test_alchemy_web3_client():
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interface = AlchemyTestClient(
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endpoint="https://eth-rinkeby.alchemyapi.io/v2/1234567890987654321abcdef"
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)
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interface.connect()
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assert isinstance(interface.client, AlchemyClient)
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assert interface.client.node_technology == 'Geth'
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assert interface.client.node_version == 'v1.9.20-stable-979fc968'
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assert interface.client.platform == 'linux-amd64'
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assert interface.client.backend == 'go1.15'
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def test_parity_web3_client():
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interface = ParityClientTestInterface(endpoint="file:///ipc.parity")
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interface.connect()
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assert isinstance(interface.client, ParityClient)
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assert interface.client.node_technology == 'Parity-Ethereum'
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assert interface.client.node_version == 'v2.5.1-beta-e0141f8-20190510'
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assert interface.client.platform == 'x86_64-linux-gnu'
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assert interface.client.backend == 'rustc1.34.1'
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def test_ganache_web3_client():
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interface = GanacheClientTestInterface(endpoint="http://ganache:8445")
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interface.connect()
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assert isinstance(interface.client, GanacheClient)
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assert interface.client.node_technology == 'EthereumJS TestRPC'
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assert interface.client.node_version == 'v2.1.5'
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assert interface.client.platform is None
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assert interface.client.backend == 'ethereum-js'
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assert interface.client.is_local
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def test_gas_prices(mocker, mock_ethereum_client):
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web3_mock = mock_ethereum_client.w3
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web3_mock.eth.generate_gas_price = mocker.Mock(side_effect=[None, GAS_PRICE_FROM_STRATEGY])
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type(web3_mock.eth).gas_price = PropertyMock(return_value=DEFAULT_GAS_PRICE) # See docs of PropertyMock
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assert mock_ethereum_client.gas_price == DEFAULT_GAS_PRICE
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assert mock_ethereum_client.gas_price_for_transaction("there's no gas strategy") == DEFAULT_GAS_PRICE
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assert mock_ethereum_client.gas_price_for_transaction("2nd time is the charm") == GAS_PRICE_FROM_STRATEGY
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