How to use the splitwise.expense.Expense function in splitwise

def test_createExpense_split_equally_success(self, mockMakeRequest):
        mockMakeRequest.return_value = '{"expenses":[{"id":1010906976,"group_id":19433671,"friendship_id":null,"expense_bundle_id":null,"description":"Testing","repeats":false,"repeat_interval":"never","email_reminder":false,"email_reminder_in_advance":-1,"next_repeat":null,"details":null,"comments_count":0,"payment":false,"creation_method":null,"transaction_method":"offline","transaction_confirmed":false,"transaction_id":null,"cost":"10.0","currency_code":"SGD","repayments":[{"from":643871,"to":79774,"amount":"5.0"}],"date":"2020-06-24T06:57:29Z","created_at":"2020-06-24T06:57:29Z","created_by":{"id":79774,"first_name":"Naman","last_name":"Aggarwal","picture":{"medium":"https://splitwise.s3.amazonaws.com/uploads/user/avatar/79774/medium_mypic.jpg"},"custom_picture":true},"updated_at":"2020-06-24T06:57:29Z","updated_by":null,"deleted_at":null,"deleted_by":null,"category":{"id":18,"name":"General"},"receipt":{"large":null,"original":null},"users":[{"user":{"id":79774,"first_name":"Naman","last_name":"Aggarwal","picture":{"medium":"https://splitwise.s3.amazonaws.com/uploads/user/avatar/79774/medium_mypic.jpg"}},"user_id":79774,"paid_share":"10.0","owed_share":"5.0","net_balance":"5.0"},{"user":{"id":643871,"first_name":"Shantanu","last_name":"Alshi","picture":{"medium":"https://s3.amazonaws.com/splitwise/uploads/user/default_avatars/avatar-blue19-100px.png"}},"user_id":643871,"paid_share":"0.0","owed_share":"5.0","net_balance":"-5.0"}]}],"errors":{}}'  # noqa: E501
        expense = Expense()
        expense.setCost('10')
        expense.setDescription("Testing")
        expense.setGroupId(19433671)
        expense.setSplitEqually()
        expenseRes, errors = self.sObj.createExpense(expense)
        mockMakeRequest.assert_called_with(
            "https://secure.splitwise.com/api/v3.0/create_expense", "POST",
            {'cost': '10', 'description': 'Testing', 'group_id': 19433671, 'split_equally': True})
        self.assertIsNone(errors)
        self.assertEqual(expenseRes.getId(), 1010906976)
        self.assertEqual(expenseRes.getGroupId(), 19433671)
        self.assertEqual(expenseRes.getFriendshipId(), None)
        self.assertEqual(expenseRes.getExpenseBundleId(), None)
        self.assertEqual(expenseRes.getDescription(), "Testing")
        self.assertEqual(expenseRes.getRepeatInterval(), "never")
        self.assertEqual(expenseRes.getEmailReminderInAdvance(), -1)

def test_createExpense_error(self, mockMakeRequest):
        mockMakeRequest.return_value = '{"expenses":[],"errors":{"base":["An unknown error occurred. Please try again or contact support@splitwise.com if you experience repeated issues. Sorry for the trouble!"]}}'  # noqa: E501
        expense = Expense()
        expense.setCost('10')
        expense.setDescription("Testing")
        user1 = ExpenseUser()
        user1.setId(79774)
        user1.setPaidShare('10.00')
        user1.setOwedShare('2.0')
        user2 = ExpenseUser()
        user2.setId(281236)
        user2.setPaidShare('0.00')
        user2.setOwedShare('8.00')
        users = []
        users.append(user1)
        users.append(user2)
        expense.setUsers(users)
        expenseRes, errors = self.sObj.createExpense(expense)
        mockMakeRequest.assert_called_with(

def test_createExpense_exception(self, mockMakeRequest):
        mockMakeRequest.side_effect = Exception(
            "Invalid response %s. Please check your consumer key and secret." % 404)
        expense = Expense()
        expense.setCost('10')
        expense.setDescription("Testing")
        user1 = ExpenseUser()
        user1.setId(79774)
        user1.setPaidShare('10.00')
        user1.setOwedShare('2.0')
        user2 = ExpenseUser()
        user2.setId(281236)
        user2.setPaidShare('0.00')
        user2.setOwedShare('8.00')
        users = []
        users.append(user1)
        users.append(user2)
        expense.setUsers(users)
        with self.assertRaises(Exception):
            expenseRes, errors = self.sObj.createExpense(expense)

def test_createExpense_split_manually_success(self, mockMakeRequest):
        mockMakeRequest.return_value = '{"expenses":[{"id":1010934284,"group_id":null,"friendship_id":null,"expense_bundle_id":null,"description":"Testing","repeats":false,"repeat_interval":"never","email_reminder":false,"email_reminder_in_advance":-1,"next_repeat":null,"details":null,"comments_count":0,"payment":false,"creation_method":null,"transaction_method":"offline","transaction_confirmed":false,"transaction_id":null,"cost":"10.0","currency_code":"SGD","repayments":[{"from":281236,"to":79774,"amount":"8.0"}],"date":"2020-06-24T08:14:07Z","created_at":"2020-06-24T08:14:07Z","created_by":{"id":79774,"first_name":"Naman","last_name":"Aggarwal","picture":{"medium":"https://splitwise.s3.amazonaws.com/uploads/user/avatar/79774/medium_mypic.jpg"},"custom_picture":true},"updated_at":"2020-06-24T08:14:07Z","updated_by":null,"deleted_at":null,"deleted_by":null,"category":{"id":18,"name":"General"},"receipt":{"large":null,"original":null},"users":[{"user":{"id":79774,"first_name":"Naman","last_name":"Aggarwal","picture":{"medium":"https://splitwise.s3.amazonaws.com/uploads/user/avatar/79774/medium_mypic.jpg"}},"user_id":79774,"paid_share":"10.0","owed_share":"2.0","net_balance":"8.0"},{"user":{"id":281236,"first_name":"Siddharth","last_name":"Goel","picture":{"medium":"https://splitwise.s3.amazonaws.com/uploads/user/avatar/281236/medium_f5fccc37-0a88-4519-9398-59c8c19b92aa.jpeg"}},"user_id":281236,"paid_share":"0.0","owed_share":"8.0","net_balance":"-8.0"}]}],"errors":{}}'  # noqa: E501
        expense = Expense()
        expense.setCost('10')
        expense.setDescription("Testing")
        user1 = ExpenseUser()
        user1.setId(79774)
        user1.setPaidShare('10.00')
        user1.setOwedShare('2.0')
        user2 = ExpenseUser()
        user2.setId(281236)
        user2.setPaidShare('0.00')
        user2.setOwedShare('8.00')
        users = []
        users.append(user1)
        users.append(user2)
        expense.setUsers(users)
        expenseRes, errors = self.sObj.createExpense(expense)
        mockMakeRequest.assert_called_with(

# Add user values to expense_data
            Splitwise.setUserArray(expense_users, expense_data)

        category = expense.getCategory()
        if category:
            expense_data["category_id"] = category.getId()

        content = self.__makeRequest(
            Splitwise.CREATE_EXPENSE_URL, "POST", expense_data)
        content = json.loads(content)
        expense = None
        errors = None

        if 'expenses' in content:
            if len(content['expenses']) > 0:
                expense = Expense(content["expenses"][0])

        if 'errors' in content:
            if len(content['errors']) != 0:
                errors = SplitwiseError(content['errors'])

        return expense, errors

def getExpense(self, id):
        """ Gets the detail of the expense given the expense id.

        Args:
            id(long, optional): ID of the expense.

        Returns:
            :obj:`splitwise.expense.Expense`: Object representing an expense
        """
        content = self.__makeRequest(Splitwise.GET_EXPENSE_URL+"/"+str(id))
        content = json.loads(content)
        expense = None
        if "expense" in content:
            expense = Expense(content["expense"])

        return expense

# error is thrown. Refer to bug #2 on Github
        localCopy = dict(locals())
        params = localCopy.keys()
        for param in params:
            if param != 'self' and param != 'options' and localCopy.get(param) is not None:
                options[param] = localCopy.get(param)

        url = Splitwise.GET_EXPENSES_URL

        url += self.__prepareOptionsUrl(options)
        content = self.__makeRequest(url)
        content = json.loads(content)
        expenses = []
        if "expenses" in content:
            for e in content["expenses"]:
                expenses.append(Expense(e))

        return expenses