More and more companies are shifting toward having their developers responsible for product quality. But how do you conduct good testing when there are no testers? The key is to optimize efforts. Here are some of the fundamentals of testing that your developers should understand, as well as some skills they'll need.

Some say test-driven development may work well initially, but as soon as we start to refactor our code, it breaks old tests and requires us to write new ones. This is not the fault of TDD; it’s the way we’re using it. TDD remains a valuable way to verify code as we write it, so we need to repair our test-driven damage.

Continuous testing can help you achieve the optimal balance between speed and risk and deliver high-quality products faster. But what exactly does continuous testing entail? Is it just shifting testing left in a DevOps environment? And where does automation fit in? Here's a breakdown of all these testing concepts.