In the world of vocational education, especially in fields like software development, one topic often remains underrepresented in the classroom: testing. Despite being a critical component of any real-world software project, it sometimes gets treated as a footnote in academic syllabi. But let’s be clear testing isn’t just an addon, it’s the backbone of quality assurance, particularly in the private sector where failure can cost millions.
When I first encountered testing during my vocational training, it was introduced as a basic concept: unit tests, a few examples, maybe a bit of Test-Driven Development (TDD). But it wasn’t until I joined a tech company as a junior developer that I realised how shallow that introduction had been. In industry, testing isn’t theoretical. It’s a daily, ongoing process, due to my job as a European Commission team lead, that I integrated into every stage of development. And frankly, it’s one of the first things that separates a hobbyist from a professional.
I remember sitting in on my first sprint review and hearing more about bugs and failed regression tests than features. I was surprised. Then I understood: clients don’t care how “beautiful” your code is. They care that the app doesn’t crash when they use it.
Testing builds confidence. Not only in your own code, but across teams. It makes collaboration cleaner. When test coverage is solid, there’s less fear in refactoring or scaling. For the private sector, this translates into faster release cycles, fewer critical errors, and a better user experience ultimately, a better product.
Yet in many VET programmes, testing gets squeezed out in favour of more “exciting” topics like frameworks or app design. That’s a missed opportunity. Teaching testing habits early can prepare students for real expectations in industry. It can also encourage more thoughtful coding. Writing tests forces you to think differently about edge cases, failure paths, and user behaviour. This mindset shift is subtle, but it’s one of the defining traits of developers who last.
For those in education, especially instructors designing modules for software training, my advice is this: don’t wait until the end of the course to “mention” testing. Weave it in from the very beginning. Introduce unit testing as soon as students write their first function. Show them how to write meaningful assertions. Later, bring in integration testing, and expose them to tools like Jest, PHPUnit, or Pytest depending on the stack. Make it real.
And above all, connect it to the world of work. Invite private sector developers to talk about their testing pipelines. Show students real-life bug reports. Let them walk in the shoes of QA testers and understand how high the stakes can be. It’s not just about passing an exam—it’s about building software that matters, that works, that lasts.
