All about testing code

Learn how and why to write automated tests for your code.

Open presentation slides

Focus of this lesson

This lesson is oriented around teaching you how write automated tests in Java. In order to get the most out of the lesson basic programming skills are required.

What you need

• IntelliJ Community Edition: IntelliJ Community Edition
• Java dev kit: Java SE Development Kit

How to get started

• Start by cloning this repository into a folder on your computer. If you've never used git before, you can alternatively use the the "Download ZIP" button to the right.
• Although you have this README.md file on your computer it's easier to read it on GitHub, so we recommend you keep this page open with the exercise tasks.

Helpful resources

• IntelliJ video tutorials
• IntelliJ for Eclipse users
• IntelliJ testing
• Error:java: javacTask: source release 8 requires target release 1.8

Exercises

This repository contains a set of exercises organized in folders. Each folder contains a README.md describing the exercise.

• Exercise 1 (start here)
• Exercise 2
• Exercise 3
• Exercise 4
• Exercise 5

Symbols and notations used in exercises

Icons with special meaning

✏️ - A task you should do
📖 - A section of text to read (no tasks, just information).
💡 - Additional information.
❗ - Something important.
❓ - Open-ended question for the reader ("What do you think would happen if...")
💩 - Bad practice (don't-do-this)
⭐ - A bonus task (not required)

Keyboard keys

Will look like this:

CTRL + ALT + C

Diff blocks

Emphasizes how lines of text should change.

- this text was removed
+ and replaced with this text