def erc1155_contract():
"""
Instantiate an ERC1155 contract instance. As a side effect,
register it to the registry, if not already registered.
"""
directory = Path(ROOT_DIR, "packages", "fetchai", "contracts", "erc1155")
configuration = ComponentConfiguration.load(ComponentType.CONTRACT,
directory)
configuration._directory = directory
configuration = cast(ContractConfig, configuration)
if str(configuration.public_id) not in contract_registry.specs:
# load contract into sys modules
Contract.from_config(configuration)
path = Path(configuration.directory,
configuration.path_to_contract_interface)
with open(path, "r") as interface_file:
contract_interface = json.load(interface_file)
contract_registry.register(
id_=str(configuration.public_id),
entry_point=
f"{configuration.prefix_import_path}.contract:{configuration.class_name}",
class_kwargs={"contract_interface": contract_interface},
contract_config=configuration,
)
contract = contract_registry.make(str(configuration.public_id))
yield contract
def dummy_contract(request):
directory = Path(ROOT_DIR, "tests", "data", "dummy_contract")
configuration = ComponentConfiguration.load(ComponentType.CONTRACT,
directory)
configuration._directory = directory
configuration = cast(ContractConfig, configuration)
if str(configuration.public_id) in contract_registry.specs:
contract_registry.specs.pop(str(configuration.public_id))
# load into sys modules
Contract.from_config(configuration)
# load into registry
path = Path(configuration.directory,
configuration.path_to_contract_interface)
with open(path, "r") as interface_file:
contract_interface = json.load(interface_file)
contract_registry.register(
id_=str(configuration.public_id),
entry_point=
f"{configuration.prefix_import_path}.contract:{configuration.class_name}",
class_kwargs={"contract_interface": contract_interface},
contract_config=configuration,
)
contract = contract_registry.make(str(configuration.public_id))
yield contract
contract_registry.specs.pop(str(configuration.public_id))
def test_from_config_and_registration():
"""Tests the from config method and contract registry registration."""
directory = Path(ROOT_DIR, "tests", "data", "dummy_contract")
configuration = ComponentConfiguration.load(ComponentType.CONTRACT, directory)
configuration._directory = directory
configuration = cast(ContractConfig, configuration)
if str(configuration.public_id) in contract_registry.specs:
contract_registry.specs.pop(str(configuration.public_id))
contract = Contract.from_config(configuration)
assert contract is not None
assert contract.contract_interface is None
assert contract.configuration == configuration
assert contract.id == configuration.public_id
contract_registry.register(
id_=str(configuration.public_id),
entry_point=f"{configuration.prefix_import_path}.contract:{configuration.class_name}",
class_kwargs={"contract_interface": configuration.contract_interfaces},
contract_config=configuration,
)
contract = contract_registry.make(str(configuration.public_id))
assert contract is not None
assert contract.configuration == configuration
assert contract.contract_interface is not None