def test_marginal_utility(): """Test the marginal utility.""" currency_holdings = {"FET": 100} utility_params = {"good_id": 20.0} exchange_params = {"FET": 10.0} good_holdings = {"good_id": 2} tx_fee = 9 preferences = Preferences() preferences.set( utility_params_by_good_id=utility_params, exchange_params_by_currency_id=exchange_params, tx_fee=tx_fee, ) delta_good_holdings = {"good_id": 1} delta_currency_holdings = {"FET": -5} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_holdings, quantities_by_good_id=good_holdings, ) marginal_utility = preferences.marginal_utility( ownership_state=ownership_state, delta_quantities_by_good_id=delta_good_holdings, delta_amount_by_currency_id=delta_currency_holdings, ) assert marginal_utility is not None, "Marginal utility must not be none."
def test_transaction_is_affordable_agent_is_buyer(): """Check if the agent has the money to cover the sender_amount (the agent=sender is the buyer).""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 20} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) tx_message = TransactionMessage( performative=TransactionMessage.Performative.PROPOSE_FOR_SETTLEMENT, skill_callback_ids=[PublicId(AUTHOR, "a_skill", "0.1.0")], tx_id="transaction0", tx_sender_addr="agent_1", tx_counterparty_addr="pk", tx_amount_by_currency_id={"FET": -1}, tx_sender_fee=0, tx_counterparty_fee=0, tx_quantities_by_good_id={"good_id": 10}, info={"some_info_key": "some_info_value"}, ledger_id="fetchai", tx_nonce="transaction nonce", ) assert ownership_state.is_affordable_transaction( tx_message=tx_message), "We should have the money for the transaction!"
def test_apply(): """Test the apply function.""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 2} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) tx_message = TransactionMessage( performative=TransactionMessage.Performative.PROPOSE_FOR_SETTLEMENT, skill_callback_ids=[PublicId(AUTHOR, "a_skill", "0.1.0")], tx_id="transaction0", tx_sender_addr="agent_1", tx_counterparty_addr="pk", tx_amount_by_currency_id={"FET": -20}, tx_sender_fee=5, tx_counterparty_fee=0, tx_quantities_by_good_id={"good_id": 10}, info={"some_info_key": "some_info_value"}, ledger_id="fetchai", tx_nonce="transaction nonce", ) list_of_transactions = [tx_message] state = ownership_state new_state = ownership_state.apply_transactions( transactions=list_of_transactions) assert ( state != new_state ), "after applying a list_of_transactions must have a different state!"
def tests_transaction_is_affordable_else_statement(): """Check that the function returns false if we cannot satisfy any if/elif statements.""" currency_endowment = {"FET": 0} good_endowment = {"good_id": 0} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) tx_message = TransactionMessage( performative=TransactionMessage.Performative.PROPOSE_FOR_SETTLEMENT, skill_callback_ids=[PublicId(AUTHOR, "a_skill", "0.1.0")], tx_id="transaction0", tx_sender_addr="agent_1", tx_counterparty_addr="pk", tx_amount_by_currency_id={"FET": 10}, tx_sender_fee=0, tx_counterparty_fee=0, tx_quantities_by_good_id={"good_id": 50}, info={"some_info_key": "some_info_value"}, ledger_id="fetchai", tx_nonce="transaction nonce", ) assert not ownership_state.is_affordable_transaction( tx_message=tx_message), "We must reject the transaction."
def test_transaction_is_affordable_there_is_no_wealth(): """Reject the transaction when there is no wealth exchange.""" currency_endowment = {"FET": 0} good_endowment = {"good_id": 0} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) tx_message = TransactionMessage( performative=TransactionMessage.Performative.PROPOSE_FOR_SETTLEMENT, skill_callback_ids=[PublicId(AUTHOR, "a_skill", "0.1.0")], tx_id="transaction0", tx_sender_addr="agent_1", tx_counterparty_addr="pk", tx_amount_by_currency_id={"FET": 0}, tx_sender_fee=0, tx_counterparty_fee=0, tx_quantities_by_good_id={"good_id": 0}, info={"some_info_key": "some_info_value"}, ledger_id="fetchai", tx_nonce="transaction nonce", ) assert not ownership_state.is_affordable_transaction( tx_message=tx_message), "We must reject the transaction."
def test_initialisation(): """Test the initialisation of the ownership_state.""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 2} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) assert ownership_state.amount_by_currency_id is not None assert ownership_state.quantities_by_good_id is not None assert ownership_state.is_initialized
def test_transaction_is_affordable_agent_is_seller(self): """Check if the agent has the goods (the agent=sender is the seller).""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 20} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) assert ownership_state.is_affordable_transaction( terms=self.seller_terms), "We must reject the transaction."
def test_transaction_is_affordable_malformed(self): """Reject the transaction when there is no wealth exchange.""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 20} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) assert not ownership_state.is_affordable_transaction( terms=self.malformed_terms), "We must reject the transaction."
def test_transaction_is_affordable_agent_is_buyer(self): """Check if the agent has the money to cover the sender_amount (the agent=sender is the buyer).""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 20} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) assert ownership_state.is_affordable( terms=self.buyer_terms ), "We should have the money for the transaction!"
def test_is_affordable_for_uninitialized(): """Test the initialisation of the ownership_state.""" ownership_state = OwnershipState() buyer_terms = Terms( ledger_id=ETHEREUM, sender_address="pk1", counterparty_address="pk2", amount_by_currency_id={"FET": -1}, is_sender_payable_tx_fee=True, quantities_by_good_id={"good_id": 10}, nonce="transaction nonce", ) assert ownership_state.is_affordable( terms=buyer_terms), "Any transaction should be classed as affordable."
def test_apply(self): """Test the apply function.""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 2} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) list_of_terms = [self.buyer_terms] state = ownership_state new_state = ownership_state.apply_transactions(list_of_terms=list_of_terms) assert ( state != new_state ), "after applying a list_of_terms must have a different state!"
def test_non_initialized_ownership_state_raises_exception(): """Test that non-initialized ownership state raises exception.""" ownership_state = OwnershipState() with pytest.raises(ValueError): ownership_state.amount_by_currency_id with pytest.raises(ValueError): ownership_state.quantities_by_good_id
def test_score_diff_from_transaction(): """Test the difference between the scores.""" good_holdings = {"good_id": 2} currency_holdings = {"FET": 100} utility_params = {"good_id": 20.0} exchange_params = {"FET": 10.0} tx_fee = 3 ownership_state = OwnershipState() ownership_state.set(amount_by_currency_id=currency_holdings, quantities_by_good_id=good_holdings) preferences = Preferences() preferences.set( utility_params_by_good_id=utility_params, exchange_params_by_currency_id=exchange_params, tx_fee=tx_fee, ) tx_message = TransactionMessage( performative=TransactionMessage.Performative.PROPOSE_FOR_SETTLEMENT, skill_callback_ids=[PublicId(AUTHOR, "a_skill", "0.1.0")], tx_id="transaction0", tx_sender_addr="agent_1", tx_counterparty_addr="pk", tx_amount_by_currency_id={"FET": -20}, tx_sender_fee=preferences.seller_transaction_fee, tx_counterparty_fee=preferences.buyer_transaction_fee, tx_quantities_by_good_id={"good_id": 10}, info={"some_info_key": "some_info_value"}, ledger_id="fetchai", tx_nonce="transaction nonce", ) cur_score = preferences.utility(quantities_by_good_id=good_holdings, amount_by_currency_id=currency_holdings) new_state = ownership_state.apply_transactions([tx_message]) new_score = preferences.utility( quantities_by_good_id=new_state.quantities_by_good_id, amount_by_currency_id=new_state.amount_by_currency_id, ) dif_scores = new_score - cur_score score_difference = preferences.utility_diff_from_transaction( ownership_state=ownership_state, tx_message=tx_message) assert ( score_difference == dif_scores ), "The calculated difference must be equal to the return difference from the function."
def test_score_diff_from_transaction(): """Test the difference between the scores.""" good_holdings = {"good_id": 2} currency_holdings = {"FET": 100} utility_params = {"good_id": 20.0} exchange_params = {"FET": 10.0} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_holdings, quantities_by_good_id=good_holdings ) preferences = Preferences() preferences.set( utility_params_by_good_id=utility_params, exchange_params_by_currency_id=exchange_params, ) terms = Terms( ledger_id=ETHEREUM, sender_address="agent_1", counterparty_address="pk", amount_by_currency_id={"FET": -20}, is_sender_payable_tx_fee=True, quantities_by_good_id={"good_id": 10}, nonce="transaction nonce", ) cur_score = preferences.utility( quantities_by_good_id=good_holdings, amount_by_currency_id=currency_holdings ) new_state = ownership_state.apply_transactions([terms]) new_score = preferences.utility( quantities_by_good_id=new_state.quantities_by_good_id, amount_by_currency_id=new_state.amount_by_currency_id, ) diff_scores = new_score - cur_score score_difference = preferences.utility_diff_from_transaction( ownership_state=ownership_state, terms=terms ) assert ( score_difference == diff_scores ), "The calculated difference must be equal to the return difference from the function." assert not preferences.is_utility_enhancing( ownership_state=ownership_state, terms=terms ), "Should not enhance utility."
def test_transaction_update_receive(): """Test the transaction update when receiving tokens.""" currency_endowment = {"FET": 75} good_endowment = {"good_id": 30} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) assert ownership_state.amount_by_currency_id == currency_endowment assert ownership_state.quantities_by_good_id == good_endowment tx_message = TransactionMessage( performative=TransactionMessage.Performative.PROPOSE_FOR_SETTLEMENT, skill_callback_ids=[PublicId(AUTHOR, "a_skill", "0.1.0")], tx_id="transaction0", tx_sender_addr="agent_1", tx_counterparty_addr="pk", tx_amount_by_currency_id={"FET": 20}, tx_sender_fee=5, tx_counterparty_fee=0, tx_quantities_by_good_id={"good_id": -10}, info={"some_info_key": "some_info_value"}, ledger_id="fetchai", tx_nonce="transaction nonce", ) ownership_state._update(tx_message=tx_message) expected_amount_by_currency_id = {"FET": 90} expected_quantities_by_good_id = {"good_id": 20} assert ownership_state.amount_by_currency_id == expected_amount_by_currency_id assert ownership_state.quantities_by_good_id == expected_quantities_by_good_id
def test_is_utility_enhancing_uninitialized(): """Test is_utility_enhancing when the states are uninitialized.""" ownership_state = OwnershipState() preferences = Preferences() terms = Terms( ledger_id="ethereum", sender_address="agent_1", counterparty_address="pk", amount_by_currency_id={"FET": -20}, is_sender_payable_tx_fee=True, quantities_by_good_id={"good_id": 10}, nonce="transaction nonce", ) assert preferences.is_utility_enhancing( ownership_state=ownership_state, terms=terms), "Should enhance utility."
def setup_class(cls): """Initialise the decision maker.""" cls._patch_logger() cls.multiplexer = Multiplexer([_make_dummy_connection()]) private_key_pem_path = os.path.join(CUR_PATH, "data", "fet_private_key.txt") eth_private_key_pem_path = os.path.join(CUR_PATH, "data", "fet_private_key.txt") cls.wallet = Wallet({ FetchAICrypto.identifier: private_key_pem_path, EthereumCrypto.identifier: eth_private_key_pem_path, }) cls.ledger_apis = LedgerApis( {FetchAICrypto.identifier: DEFAULT_FETCHAI_CONFIG}, FetchAICrypto.identifier) cls.agent_name = "test" cls.identity = Identity( cls.agent_name, addresses=cls.wallet.addresses, default_address_key=FetchAICrypto.identifier, ) cls.ownership_state = OwnershipState() cls.preferences = Preferences() cls.decision_maker_handler = DecisionMakerHandler( identity=cls.identity, wallet=cls.wallet, ledger_apis=cls.ledger_apis, ) cls.decision_maker = DecisionMaker(cls.decision_maker_handler) cls.multiplexer.connect() cls.tx_id = "transaction0" cls.tx_sender_addr = "agent_1" cls.tx_counterparty_addr = "pk" cls.info = {"some_info_key": "some_info_value"} cls.ledger_id = "fetchai" cls.decision_maker.start()
def test_transaction_update_receive(self): """Test the transaction update when receiving tokens.""" currency_endowment = {"FET": 100} good_endowment = {"good_id": 20} ownership_state = OwnershipState() ownership_state.set( amount_by_currency_id=currency_endowment, quantities_by_good_id=good_endowment, ) assert ownership_state.amount_by_currency_id == currency_endowment assert ownership_state.quantities_by_good_id == good_endowment ownership_state.update(terms=self.seller_terms) expected_amount_by_currency_id = {"FET": 101} expected_quantities_by_good_id = {"good_id": 10} assert ownership_state.amount_by_currency_id == expected_amount_by_currency_id assert ownership_state.quantities_by_good_id == expected_quantities_by_good_id