def test_pass_name_resolver(w3):
return_chain_on_mainnet = construct_fixture_middleware({
'net_version': '1',
})
return_balance = construct_fixture_middleware(
{'platon_getBalance': BALANCE})
w3.middleware_stack.inject(return_chain_on_mainnet, layer=0)
w3.middleware_stack.inject(return_balance, layer=0)
assert w3.eth.getBalance(NAME) == BALANCE
def test_full_extra_data(web3):
return_block_with_long_extra_data = construct_fixture_middleware({
'eth_getBlockByNumber': {'extraData': '0x' + 'ff' * 32},
})
web3.middleware_stack.inject(return_block_with_long_extra_data, layer=0)
block = web3.eth.getBlock('latest')
assert block.extraData == b'\xff' * 32
def test_long_extra_data(web3):
return_block_with_long_extra_data = construct_fixture_middleware({
'eth_getBlockByNumber': {'extraData': '0x' + 'ff' * 33},
})
web3.middleware_stack.inject(return_block_with_long_extra_data, layer=0)
with pytest.raises(ValidationError):
web3.eth.getBlock('latest')
def test_fail_name_resolver(w3):
return_chain_on_mainnet = construct_fixture_middleware({
'net_version': '2',
})
w3.middleware_stack.inject(return_chain_on_mainnet, layer=0)
with pytest.raises(InvalidAddress, match='.*ethereum\.eth.*'):
w3.eth.getBalance("ethereum.eth")
def test_geth_proof_of_authority(web3):
return_block_with_long_extra_data = construct_fixture_middleware({
'eth_getBlockByNumber': {'extraData': '0x' + 'ff' * 33},
})
web3.middleware_stack.inject(geth_poa_middleware, layer=0)
web3.middleware_stack.inject(return_block_with_long_extra_data, layer=0)
block = web3.eth.getBlock('latest')
assert 'extraData' not in block
assert block.proofOfAuthorityData == b'\xff' * 33
def test_fixture_middleware(w3, method, expected):
w3.middleware_stack.add(construct_fixture_middleware({'test_endpoint': 'value-a'}))
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
w3.manager.request_blocking(method, [])
else:
actual = w3.manager.request_blocking(method, [])
assert actual == expected
def test_web3_auto_gethdev():
assert isinstance(w3.providers[0], IPCProvider)
return_block_with_long_extra_data = construct_fixture_middleware({
'eth_getBlockByNumber': {
'extraData': '0x' + 'ff' * 33
},
})
w3.middleware_stack.inject(return_block_with_long_extra_data, layer=0)
block = w3.eth.getBlock('latest')
assert 'extraData' not in block
assert block.proofOfAuthorityData == b'\xff' * 33
# EVM
'evm_snapshot':
integer_to_hex,
},
)
ethereum_tester_fixture_middleware = construct_fixture_middleware({
# Eth
'eth_protocolVersion':
'63',
'eth_hashrate':
0,
'eth_gasPrice':
1,
'eth_syncing':
False,
'eth_mining':
False,
# Net
'net_version':
'1',
'net_listening':
False,
'net_peerCount':
0,
})
def guess_from(web3, transaction):
coinbase = web3.eth.coinbase
if coinbase is not None:
return coinbase