Bank Tech Test

Challenge Description

Acceptance criteria:

Given a client makes a deposit of 1000 on 10-01-2023
And a deposit of 2000 on 13-01-2023
And a withdrawal of 500 on 14-01-2023
When she prints her bank statement
Then she would see

    date || credit || debit || balance
    14/01/2023 || || 500.00 || 2500.00
    13/01/2023 || 2000.00 || || 3000.00
    10/01/2023 || 1000.00 || || 1000.00

Approach

I started by creating a diagram to decide on the classes needed to create this programme. I decided that the programme needed two classes, one to record the transactions by handling the inputs, and the other to print these out as a statement. After planning the classes in my diagram, I created a new project in VSCode and installed jest as the testing framework for JavaScript. I began by writing the tests for the AccountTransaction class, then writing the code to pass these tests, I then repeated these steps for the AccountStatement class, finishing with an integration test for both.

Diagram

To run programme using node

1. Clone project into your local machine

2. Open terminal and go into the directory bank_tech_test

   cd bank_tech_test
   
   

3. Install dependencies by running npm install

   npm install
   
   

4. Run programme useing node

   node
   
   const AccountTransaction = require('./AccountTransaction');
   
   let account = new AccountTransaction();
   
   account.depositMoney(1000.00);
   
   account.depositMoney(2000.00);
   
   const transactions = account.withdrawMoney(500.00);
   
   const AccountStatement = require('./AccountStatement');
   
   let statement = new AccountStatement(transactions);
   
   statement.displayStatement();
   
   

Screenshot of Project Running

How to run the tests

Make sure you are in the bank_tech_test directory and then in your terminal, run jest:

cd bank_tech_test

jest

Screenshot of Passing Tests