JavaScript Testing Practice

This project is a practice exercise focused on writing unit tests using Jest for common JavaScript functions and operations. The goal is to demonstrate skills in Test-Driven Development (TDD) and writing tests for basic JavaScript functions.

Features

• capitalize: Capitalizes the first letter of a string.
• reverseString: Reverses a given string.
• caesarCipher: Implements the Caesar cipher with shift functionality, preserving case and handling non-alphabet characters.
• analyzeArray: Analyzes an array of numbers and returns an object with average, min, max, and length.
• Calculator: A simple calculator that can perform addition, subtraction, multiplication, and division (with error handling for division by zero).

Testing

The project uses Jest for unit testing. The following tests are implemented:

• Functionality tests for capitalize, reverseString, caesarCipher, and analyzeArray.
• Tests for basic calculator operations: addition, subtraction, multiplication, and division (with zero error handling).

Installation

1. Clone this repository:

git clone https://github.com/john-walter-munene/Project-Testing-Practice

2. Install the required dependencies:

npm install

3. Run the tests:

npm test

Test results (Image attached)