def test_apply_given_new_state_event_updates_correctly(self):
        # Arrange
        event1 = AccountState(
            AccountId("SIM", "001"),
            [Money("10.00000000", BTC),
             Money("20.00000000", ETH)],
            [Money("10.00000000", BTC),
             Money("20.00000000", ETH)],
            [Money("0.00000000", BTC),
             Money("0.00000000", ETH)],
            info={},  # No default currency set
            event_id=uuid4(),
            event_timestamp=UNIX_EPOCH,
        )

        # Act
        account = Account(event1)

        # Wire up account to portfolio
        account.register_portfolio(self.portfolio)
        self.portfolio.register_account(account)

        event2 = AccountState(
            AccountId("SIM", "001"),
            [Money("9.00000000", BTC),
             Money("20.00000000", ETH)],
            [Money("8.50000000", BTC),
             Money("20.00000000", ETH)],
            [Money("0.50000000", BTC),
             Money("0.00000000", ETH)],
            info={},  # No default currency set
            event_id=uuid4(),
            event_timestamp=UNIX_EPOCH,
        )

        # Act
        account.apply(event2)

        # Assert
        self.assertEqual(event2, account.last_event)
        self.assertEqual([event1, event2], account.events)
        self.assertEqual(2, account.event_count)
        self.assertEqual(Money("9.00000000", BTC), account.balance(BTC))
        self.assertEqual(Money("8.50000000", BTC), account.balance_free(BTC))
        self.assertEqual(Money("0.50000000", BTC), account.balance_locked(BTC))
        self.assertEqual(Money("20.00000000", ETH), account.balance(ETH))
        self.assertEqual(Money("20.00000000", ETH), account.balance_free(ETH))
        self.assertEqual(Money("0.00000000", ETH), account.balance_locked(ETH))
    def test_apply_given_new_state_event_updates_correctly(self):
        # Arrange
        event1 = AccountState(
            account_id=AccountId("SIM", "001"),
            account_type=AccountType.CASH,
            base_currency=None,  # Multi-currency
            reported=True,
            balances=[
                AccountBalance(
                    BTC,
                    Money(10.00000000, BTC),
                    Money(0.00000000, BTC),
                    Money(10.00000000, BTC),
                ),
                AccountBalance(
                    ETH,
                    Money(20.00000000, ETH),
                    Money(0.00000000, ETH),
                    Money(20.00000000, ETH),
                ),
            ],
            info={},  # No default currency set
            event_id=uuid4(),
            ts_updated_ns=0,
            timestamp_ns=0,
        )

        # Act
        account = Account(event1)

        # Wire up account to portfolio
        account.register_portfolio(self.portfolio)
        self.portfolio.register_account(account)

        event2 = AccountState(
            account_id=AccountId("SIM", "001"),
            account_type=AccountType.CASH,
            base_currency=None,  # Multi-currency
            reported=True,
            balances=[
                AccountBalance(
                    BTC,
                    Money(9.00000000, BTC),
                    Money(0.50000000, BTC),
                    Money(8.50000000, BTC),
                ),
                AccountBalance(
                    ETH,
                    Money(20.00000000, ETH),
                    Money(0.00000000, ETH),
                    Money(20.00000000, ETH),
                ),
            ],
            info={},  # No default currency set
            event_id=uuid4(),
            ts_updated_ns=0,
            timestamp_ns=0,
        )

        # Act
        account.apply(event=event2)

        # Assert
        self.assertEqual(event2, account.last_event)
        self.assertEqual([event1, event2], account.events)
        self.assertEqual(2, account.event_count)
        self.assertEqual(Money(9.00000000, BTC), account.balance_total(BTC))
        self.assertEqual(Money(8.50000000, BTC), account.balance_free(BTC))
        self.assertEqual(Money(0.50000000, BTC), account.balance_locked(BTC))
        self.assertEqual(Money(20.00000000, ETH), account.balance_total(ETH))
        self.assertEqual(Money(20.00000000, ETH), account.balance_free(ETH))
        self.assertEqual(Money(0.00000000, ETH), account.balance_locked(ETH))