Testing Testing Testing!

Up to this point, we've spoken about some of the tools we can use to move application code from ideas through compilation and into deployment. But how do we know the stuff we've built is actually working as we expect it to? If we create a pipeline that just compiles code and moves it to production – is it done? No, there are testing quality steps and gates that we need to introduce into our software pipelines!

The Test Automation Pyramid

How do we know our feature works as we expect it to? We should test it and see! It is not always clear how we should test our feature, nor is it clear when we have done too much or not enough testing. Should we create test instructions and manually test the feature? Should we test the feature in isolation? Should we test all its constituent parts or just the whole thing? What is a definition of a unit test exactly?

Let's face it, testing is complicated. We are going to advocate for creating not...