Defining data-driven testing

Data-driven testing is not unique to API tests. It can be used in other types of automation as well. For example, you could set up UI tests or even unit tests to use data-driven testing techniques. In this section, I will explain what data-driven testing is. I will also teach you some principles that you can use to create good inputs for data-driven tests. In addition, this section will cover how to set up good test comparisons and how to set up the outputs for data-driven tests. But what exactly is data-driven testing?

Essentially, this technique involves creating a table of inputs that map to expected outputs and then running those inputs through the system under test and checking whether the outputs of the tests match the outputs in the table. You may also hear this test technique described as table-driven testing or parameterized testing.

That is all a bit abstract, so let me try to explain it with an example to help you understand what this...