def test_transfer_funds_error_insufficient_funds(self):
# Create two accounts and deposit funds.
account_id1 = self.accounts.create_account()
account_id2 = self.accounts.create_account()
self.commands.deposit_funds(account_id1, Decimal("200.00"))
# Fail to transfer funds - insufficient funds.
transaction_id = self.commands.transfer_funds(
debit_account_id=account_id1,
credit_account_id=account_id2,
amount=Decimal("1000.00"),
)
# Check saga errored.
self.assertFalse(self.sagas.get_saga(transaction_id).has_succeeded)
self.assertTrue(self.sagas.get_saga(transaction_id).has_errored)
errors = self.sagas.get_saga(transaction_id).errors
self.assertEqual(len(errors), 1)
self.assertEqual(errors[0],
InsufficientFundsError({"account_id": account_id1}))
# Check balances - should be unchanged.
self.assertEqual(self.accounts.get_balance(account_id1),
Decimal("200.00"))
self.assertEqual(self.accounts.get_balance(account_id2),
Decimal("0.00"))
def test_overdraft_limit(self):
# Create an account and deposit funds.
account_id1 = self.accounts.create_account()
self.commands.deposit_funds(account_id1, Decimal("200.00"))
# Check overdraft limit.
self.assertEqual(self.accounts.get_overdraft_limit(account_id1),
Decimal("0.00"))
# Set overdraft limit.
self.accounts.set_overdraft_limit(account_id=account_id1,
overdraft_limit=Decimal("500.00"))
# Can't set negative overdraft limit.
with self.assertRaises(AssertionError):
self.accounts.set_overdraft_limit(
account_id=account_id1, overdraft_limit=Decimal("-500.00"))
# Check overdraft limit.
self.assertEqual(self.accounts.get_overdraft_limit(account_id1),
Decimal("500.00"))
# Withdraw funds.
transaction_id = self.commands.withdraw_funds(account_id1,
Decimal("500.00"))
# Check saga succeeded.
self.assertTrue(self.sagas.get_saga(transaction_id).has_succeeded)
self.assertFalse(self.sagas.get_saga(transaction_id).has_errored)
self.assertFalse(self.sagas.get_saga(transaction_id).errors)
# Check balance - should be overdrawn.
self.assertEqual(self.accounts.get_balance(account_id1),
Decimal("-300.00"))
# Fail to withdraw funds - insufficient funds.
transaction_id = self.commands.withdraw_funds(account_id1,
Decimal("200.01"))
# Check saga errored.
self.assertFalse(self.sagas.get_saga(transaction_id).has_succeeded)
self.assertTrue(self.sagas.get_saga(transaction_id).has_errored)
errors = self.sagas.get_saga(transaction_id).errors
self.assertEqual(len(errors), 1)
self.assertEqual(errors[0],
InsufficientFundsError({"account_id": account_id1}))
# Check balance.
self.assertEqual(self.accounts.get_balance(account_id1),
Decimal("-300.00"))
# Close account.
self.accounts.close_account(account_id1)
# Fail to set overdraft limit - account closed.
with self.assertRaises(AccountClosedError):
self.accounts.set_overdraft_limit(
account_id=account_id1, overdraft_limit=Decimal("5000.00"))
def test_overdraft_limit(self):
# Create an account and deposit funds.
account_id1 = self.accounts.create_account()
transaction_id = self.commands.deposit_funds(account_id1,
Decimal("200.00"))
self.assertSagaHasSucceeded(transaction_id)
# Check overdraft limit.
self.assertEqual(self.accounts.get_overdraft_limit(account_id1),
Decimal("0.00"))
# Set overdraft limit.
self.accounts.set_overdraft_limit(account_id=account_id1,
overdraft_limit=Decimal("500.00"))
# Can't set negative overdraft limit.
with self.assertRaises(AssertionError):
self.accounts.set_overdraft_limit(
account_id=account_id1, overdraft_limit=Decimal("-500.00"))
# Check overdraft limit.
self.assertEqual(self.accounts.get_overdraft_limit(account_id1),
Decimal("500.00"))
# Withdraw funds.
transaction_id = self.commands.withdraw_funds(account_id1,
Decimal("500.00"))
# Check saga succeeded.
self.assertSagaHasSucceeded(transaction_id)
# Check balance - should be overdrawn.
self.assertBalanceEquals(account_id1, Decimal("-300.00"))
# Fail to withdraw funds - insufficient funds.
transaction_id = self.commands.withdraw_funds(account_id1,
Decimal("200.01"))
# Check saga errored.
self.assertSagaHasNotSucceeded(
transaction_id,
[InsufficientFundsError({"account_id": account_id1})])
# Check balance.
self.assertBalanceEquals(account_id1, Decimal("-300.00"))
# Close account.
self.accounts.close_account(account_id1)
# Fail to set overdraft limit - account closed.
with self.assertRaises(AccountClosedError):
self.accounts.set_overdraft_limit(
account_id=account_id1, overdraft_limit=Decimal("5000.00"))
def test_withdraw_funds_error_insufficient_funds(self):
# Create an account and deposit funds.
account_id1 = self.accounts.create_account()
self.commands.deposit_funds(account_id1, Decimal("200.00"))
# Fail to withdraw funds - insufficient funds.
transaction_id = self.commands.withdraw_funds(account_id1,
Decimal("200.01"))
# Check saga errored.
self.assertSagaHasNotSucceeded(
transaction_id,
[InsufficientFundsError({"account_id": account_id1})])
# Check balance.
self.assertBalanceEquals(account_id1, Decimal("200.00"))
def test_withdraw_funds_error_insufficient_funds(self):
# Create an account and deposit funds.
account_id1 = self.accounts.create_account()
self.commands.deposit_funds(account_id1, Decimal("200.00"))
# Fail to withdraw funds - insufficient funds.
transaction_id = self.commands.withdraw_funds(account_id1,
Decimal("200.01"))
# Check saga errored.
self.assertFalse(self.sagas.get_saga(transaction_id).has_succeeded)
self.assertTrue(self.sagas.get_saga(transaction_id).has_errored)
errors = self.sagas.get_saga(transaction_id).errors
self.assertEqual(len(errors), 1)
self.assertEqual(errors[0],
InsufficientFundsError({"account_id": account_id1}))
# Check balance.
self.assertEqual(self.accounts.get_balance(account_id1),
Decimal("200.00"))
def test_transfer_funds_error_insufficient_funds(self):
# Create two accounts and deposit funds.
account_id1 = self.accounts.create_account()
account_id2 = self.accounts.create_account()
self.commands.deposit_funds(account_id1, Decimal("200.00"))
# Fail to transfer funds - insufficient funds.
transaction_id = self.commands.transfer_funds(
debit_account_id=account_id1,
credit_account_id=account_id2,
amount=Decimal("1000.00"),
)
# Check saga errored.
self.assertSagaHasNotSucceeded(
transaction_id,
[InsufficientFundsError({"account_id": account_id1})])
# Check balances - should be unchanged.
self.assertBalanceEquals(account_id1, Decimal("200.00"))
self.assertBalanceEquals(account_id2, Decimal("0.00"))
def check_has_sufficient_funds(self, amount: Decimal) -> None:
if self.balance + amount < -self.overdraft_limit:
raise InsufficientFundsError({"account_id": self.id})