November 2024
Intermediate to advanced
540 pages
21h 17m
French
Content preview from L'art du développement agile, 2e édition
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Des tests rapides et fiables
AUDIENCE
Programmeurs
Nos tests ne se mettent pas en travers de notre chemin.
Les équipes qui adoptent le développement piloté par les tests accumulent des milliers de tests. Plus tu as de tests, plus la vitesse et la fiabilité deviennent importantes. Avec le TDD, tu exécutes les tests aussi souvent qu'une ou deux fois par minute. Ils doivent être rapides et produire la même réponse à chaque fois. Si ce n'est pas le cas, tu ne pourras pas obtenir de retour d'information dans les 1 à 5 secondes, ce qui est crucial pour que la boucle TDD fonctionne efficacement. Tu cesseras d'exécuter les tests aussi fréquemment, ce qui signifie que tu n'attraperas pas les erreurs aussi rapidement, ce qui te ralentira.
Tu peux contourner le problème en programmant ton script watch pour qu'il n'exécute qu'un sous-ensemble de tests, mais les tests lents finiront par causer des problèmes lors de l'intégration également. Au lieu d'obtenir un retour d'information en cinq minutes, il faudra attendre des dizaines de minutes, voire des heures. Pour ajouter l'insulte à l'injure, les tests échoueront souvent de façon aléatoire, ce qui t'obligera à recommencer le long processus, ce qui ajoutera de la friction et amènera les gens à ignorer les véritables échecs.
Lestests rapides et fiables changent la donne. Ils nécessitent de la pratique et une bonne conception, mais une fois que tu connais leurs secrets, ils sont plus faciles et plus rapides à écrire que les tests lents et instables. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.