Cyrille Giquello

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====== Behaviour-Driven Development pour Php ======

Le Behaviour-Driven Development ([/glossaire/BDD|BDD]]) est idéal pour les tests d'acceptation et la collaboration entre équipes techniques et métiers.

Le BDD est bien adapté pour les [[/informatique/ai_lm/ai_coding|assistants IA]] :
  * https://docs.behat.org/en/latest/behat_and_ai.html

**Behat**: Framework BDD le plus connu pour PHP, inspiré de [[https://cucumber.io|Cucumber]]. Permet de décrire le comportement de l'application en langage naturel (Gherkin). Intégration facile avec Symfony et Laravel. https://docs.behat.org, https://github.com/Behat/Behat


**Codeception**:  Framework de test PHP qui supporte le style BDD. provides high-level domain language for tests. Tests are represented as a set of user's actions. Symfony, Laravel, Zend Framework, Yii, Phalcon are supported. https://codeception.com

Abandonnés:
  * [[https://github.com/danielstjules/pho|Pho]] last commit 2017-04
  * [[https://github.com/olbrich/cuke4php|Cuke4php]] last commit 2013-12

===== Behat =====

How does Behat know what to do when it sees ''Given there is a "Sith Lord Lightsaber", which costs £5''?

You tell it: you write PHP code inside your context class (FeatureContext in our case) and tell Behat that this code represents a specific scenario step (via an attribute with a pattern):

<code php>
#[Given('there is a(n) :arg1, which costs £:arg2')]
public function thereIsAWhichCostsPs($arg1, $arg2)
{
    throw new PendingException();
}
</code>

Those patterns could be quite powerful, but at the same time, writing them for all possible steps manually could become extremely tedious and boring.

**That’s why Behat does it** for you :

<code>
--- FeatureContext has missing steps. Define them with these snippets:

    #[Given('there is a :arg1, which costs £:arg2')]
    public function thereIsAWhichCostsPs($arg1, $arg2)
    {
        throw new PendingException();
    }
</code>