README.md

Module 2: Intro To Test-Driven Development

This module will show you what TDD looks like in practice. The instructor will lead the group through a demonstration of TDD. Follow along!

Rules

How to play

👉 Fire up the tests by opening a new command window at the root of this project, and running npm run test-module-2.

👉 Write tests & code to implement the specifications, one at a time.

REMEMBER! Make sure you write a failing test before you implement each specification!

Specifications

1. Write a method FizzBuzz

2. that takes an integer between 1 and 100 as a parameter

3. and returns a string containing all integers from 1 to the value passed in

i.e. if 15 is passed in, it returns “1 2 3 4 5 6 7 8 9 10 11 12 13 14 15”

4. except for multiples of three, where the number is replaced with the word “Fizz”

i.e. “1 2 Fizz 4 5 Fizz 7 8 Fizz 10 11 Fizz 13 14 Fizz”

5. and for multiples of five, where the number is replaced with the word “Buzz”

i.e. “1 2 Fizz 4 Buzz Fizz 7 8 Fizz Buzz 11 Fizz 13 14 ??”

6. and for numbers that are multiples of both 3 and 5, where the number is replaced with the word “FizzBuzz”.

i.e. “1 2 Fizz 4 Buzz Fizz 7 8 Fizz Buzz 11 Fizz 13 14 FizzBuzz”

Helpful information

The lodash library has been installed in this project. You might find the functions isNumber and range useful when you're implementing the specs. To import them into a file, include this line at the top:

import { isNumber, range } from 'lodash';