3 Things Nobody Tells You About BDD

Your Cucumber suite takes forty minutes to run. You cannot explain what a single feature file tests without reading layers of code.

Many teams adopt BDD because business stakeholders need to read tests. Then, those stakeholders stop reading. You end up with a maintenance nightmare.

Here are three truths about BDD.

  1. Gherkin is not a programming language

Stop writing test scripts in Gherkin. If your scenarios list every click and every field, you are doing it wrong.

Bad Gherkin:

  • Given the user enters email "test@example.com"
  • And the user enters password "Password123!"
  • And the user clicks "Place Order"

Good Gherkin:

  • Given the user has items ready to purchase
  • When the user pays with a valid credit card
  • Then the order is confirmed

The "how" lives in your step definitions. The "what" lives in your feature files. Keep your feature files simple so a product manager can read them in seconds.

  1. Step definitions are not a dependency graph

Do not make step definitions import other step definitions. This creates a tangled web. If one step fails, it poisons the entire state.

The fix is simple:

  • Separate your page objects from your step definitions.
  • Use a shared domain layer.
  • Step definitions should be thin wrappers that call domain objects.

This makes your steps stateless. You can change one part of your code without breaking every other scenario.

  1. BDD is a documentation project

BDD is about communication, not just testing. The tests are a side effect.

If you optimize only for test coverage or execution speed, you lose the main goal. Your feature files should be the first thing a new engineer reads to understand your system.

If a person cannot understand your system by reading your feature files, your BDD suite has failed.

What to do tomorrow:

  • Pick your worst feature file.
  • Rewrite scenarios to be three to five lines long.
  • Move data into step definitions or factories.
  • Replace step-to-step imports with domain objects.

Can you explain your system to a new hire using only your feature files in five minutes? If not, start rewriting.

Source: https://dev.to/qawalah/3-things-nobody-tells-you-about-bdd-before-your-cucumber-suite-becomes-a-maintenance-nightmare-9c7

Optional learning community: https://t.me/GyaanSetuAi