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_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_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_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."