Testing is one of the key building blocks in Software Engineering and this workshop will introduce you to the theory behind testing as well as the Test Driven Development (TDD) paradigm. Throughout the workshop, we will focus on the following subject areas: * Popular test frameworks: Jest vs. Mocha / Chai * Implementation of the Fibonacci function through TDD * The Red/Green/Refactor approach * Unit testing of the Fibonacci function * Stretch goal: Integration testing of APIs