Writing Tests First with Comments

class LocalBankTransfers(unittest.TestCase):
	def test_TransferWithInsufficientFunds_should_FailAndApplyNsfCharge(self):
		# Irrelevant

		# Initial state
		# Source and destination accounts exist with money in each

		# Action:
		# Transfer money from source to destination, sending more than the source's balance

		# Outcome:
		# Verify that both the source balance reduced by the insufficient funds charge, the
		# destination balance didn't change, and the correct account message is added
		# to the source to explain why the transfer failed and why the charge was applied.
		pass