Introduction to Testing
Understand the importance of automated testing and different testing methodologies.
Introduction to Testing is a free Ruby Academy lesson on CoddyKit — lesson 1 of 4. The first 2 pages are free to read below — then you write and run real code in the browser with a 24/7 AI tutor guiding you. It is part of the Ruby Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
This lesson is available in the CoddyKit app.
Frequently asked questions
Is the “Introduction to Testing” lesson free?
Yes. The first 2 pages of every CoddyKit lesson are free to read on both the web and the app, and the Ruby Academy course includes 4 lessons in total. You can unlock the full lesson and the entire Ruby Academy learning path with CoddyKit PRO.
What will I learn in “Introduction to Testing”?
Understand the importance of automated testing and different testing methodologies. You practise Ruby Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Ruby Academy?
No prior experience is required. Ruby Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 1 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Introduction to Testing” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Ruby Academy lesson?
Yes. Every Ruby Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Introduction to Testing
- Using Minitest
- Behavior-Driven Development (BDD) with RSpec
- Writing Effective Tests