def test_handle_creates_the_expense(self, message, state):
action = self.build_action(message, state)
count = Expense.count()
action.handle()
assert Expense.count() == count + 1
def test_notes_is_not_mandatory():
assert Expense.count() == 0
Expense(category='coca cola', amount=42).save()
assert Expense.count() == 1
def test_expense_is_created():
assert Expense.count() == 0
Expense(id='test_id', amount=42, category='coca cola',
notes='Test notes').save()
assert Expense.count() == 1
def test_amount_is_not_mandatory():
assert Expense.count() == 0
Expense(category='coca cola', notes='test notes').save()
assert Expense.count() == 1