Rspec Essentials

Test-driven development

It seems to make sense to write your code first and then to test it, as we did in our AddressValidator example above. Many people follow this approach. However, many others follow a process called TDD, where the tests are written first. Why do this? Let's take a brief aside before answering the question.

If you look at RSpec's official documentation, you will find that instead of the word test, the word example is used to describe the individual assertions to be found within the it block. Although it may appear less natural than test, in some ways example is more accurate. Automated tests rarely provide conclusive proof that a software system, or even just one of its functions, works. Most often, they contain a few test ...