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Fruit shop techdays 2015

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Bruno Boucard
Bruno Boucard

Techdays 2015: Atelier FruitShop : Venez vivre pendant 1 heure, une expérience de développement vivifiante !Atelier FruitShop : Venez vivre pendant 1 heure, une expérience de développement vivifiante !

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HOW TO TURN YOUR DEVELOPERS IN LESS THAN 6 MONTHS IN PERFECT SOFTWARE CRAFTSMEN? Jean-Laurent de Morlhon Programmeur Java @morlhon Bruno Boucard Programmeur C# @brunoboucard 10 Février 2015 -14h FRUITSHOP.IO WE SELL FRUITS!! YEAH!!
ITERATION 0 learn.tocraft.fr • Trouver un binôme • Une machine par binôme • Langage au choix • Programme qui lit/écrit depuis la entrée/sortie standard • Projet disponible sur http://github.com/jeanlaurent/basicloop Formations pour programmeurs par des programmeurs learn.tocraft.fr
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 1 • Faire une caisse enregistreuse simple pour les clients en magasin • 3 produits: Pommes ( 1€ ), Bananes ( 1,5€ ), Cerises ( 0,75€ ). • 1 article par ligne & afficher le total du panier en centimes à chaque fois. Tests Vérifications > Pommes -> 100 > Cerises -> 175 > Cerises -> 250 > Cerises -> 75 > Pommes -> 175 > Cerises -> 250 > Bananes -> 400 > Pommes -> 500 10 minutes
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 2 • Même entrée et sortie que dans l’itération 1 • Prendre en compte des réductions • Pour 2 lots de cerises achetés on applique 20 centimes de réduction. Tests Vérifications > Pommes -> 100 > Cerises -> 175 > Cerises -> 230 > Cerises -> 75 > Pommes -> 175 > Cerises -> 230 > Bananes -> 380 > Cerises -> 455 > Cerises -> 510 > Pommes -> 610 10 minutes
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 3 • Support du format CSV en entrée • Les articles doivent être séparés par des virgules • Même prix & réductions que pour l’itération 2 Tests > Pommes, Cerises, Bananes -> 325 > Pommes -> 425 10 minutes
Formations pour programmeurs par des programmeurs learn.tocraft.fr
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 3’ • Support du format CSV repoussé à plus tard, Même deadline !!! • On revient à une entrée par ligne. • La réduction pour les cerises passe à 30 centimes. • Un lot de bananes acheté, le second est offert. Tests Vérifications > Cerises -> 75 > Cerises -> 120 > Bananes -> 270 > Bananes -> 270 > Cerises -> 75 > Pommes -> 175 > Cerises -> 220 > Bananes -> 370 > Pommes -> 470 > Bananes -> 470 > Cerises -> 545 10 minutes
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 4 • Support de la localisation • La réduction pour les cerises repassent à 0,20 € • On doit supporter les mots "Apples" et "Mele" pour "Pommes" Tests > Cerises -> 75 > Apples -> 175 > Cerises -> 230 > Bananes -> 380 > Bananes -> 380 10 minutes Vérifications > Cerises -> 75 > Apples -> 175 > Cerises -> 230 > Bananes -> 380 > Pommes -> 480 > Mele -> 580
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 5 • Support de la localisation par article • Le support du CSV est pour la prochaine itération • 3 lots de "Apples" valent 2 € • 2 lots de "Mele" valent 1,50 € Tests > Mele -> 100 > Apples -> 200 > Apples -> 300 > Pommes -> 400 > Apples -> 400 > Mele -> 450 > Cerises -> 525 > Cerises -> 580 10 minutes
Formations pour programmeurs par des programmeurs learn.tocraft.fr
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 5’ • On a déployé du nouveau Hardware, faut redeployer asap. • Même deadline • 3 lots de "Apples" valent 2 € • 2 lots de "Mele" valent 1 € Tests Vérifications > Mele, Apples, Apples, Pommes, Apples, Mele, Cerises, Cerises, Bananes -> 680 > Cerises, Apples -> 175 > Cerises -> 230 > Apples, Pommes, Bananes -> 580 > Apples, Pommes -> 680 > Mele -> 780 > Pommes -> 880 10 minutes
Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 6 • Fix Bug + Créer les super réductions • Bug: Support du CSV ET d’une entrée par ligne • 4 pommes achetées, 1 € de réduction • 5 fruits achetés, 2 € de réduction Tests Vérifications > Mele, Apples, Apples, Mele -> 200 > Bananes -> 150 > Mele, Apples, Apples, Pommes, Mele -> 150 > Mele, Apples, Apples, Pommes, Mele -> 100 > Bananes -> 250 10 minutes
Formations pour programmeurs par des programmeurs learn.tocraft.fr CONCLUSION • Qui a utilisé un système de gestion de version ? • Qui a utilisé des tests, a partir de quelle itération ? • Qui a écrit et maintenu des tests d’acceptance ? • Quid du code de CSV lorsqu’il n’était plus nécessaire • Est-ce que votre code est propre ? • Est-ce que votre code répond au besoin ?

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Fruit shop techdays 2015

  • 1. HOW TO TURN YOUR DEVELOPERS IN LESS THAN 6 MONTHS IN PERFECT SOFTWARE CRAFTSMEN? Jean-Laurent de Morlhon Programmeur Java @morlhon Bruno Boucard Programmeur C# @brunoboucard 10 Février 2015 -14h FRUITSHOP.IO WE SELL FRUITS!! YEAH!!
  • 2.
  • 3. ITERATION 0 learn.tocraft.fr • Trouver un binôme • Une machine par binôme • Langage au choix • Programme qui lit/écrit depuis la entrée/sortie standard • Projet disponible sur http://github.com/jeanlaurent/basicloop Formations pour programmeurs par des programmeurs learn.tocraft.fr
  • 4. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 1 • Faire une caisse enregistreuse simple pour les clients en magasin • 3 produits: Pommes ( 1€ ), Bananes ( 1,5€ ), Cerises ( 0,75€ ). • 1 article par ligne & afficher le total du panier en centimes à chaque fois. Tests Vérifications > Pommes -> 100 > Cerises -> 175 > Cerises -> 250 > Cerises -> 75 > Pommes -> 175 > Cerises -> 250 > Bananes -> 400 > Pommes -> 500 10 minutes
  • 5. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 2 • Même entrée et sortie que dans l’itération 1 • Prendre en compte des réductions • Pour 2 lots de cerises achetés on applique 20 centimes de réduction. Tests Vérifications > Pommes -> 100 > Cerises -> 175 > Cerises -> 230 > Cerises -> 75 > Pommes -> 175 > Cerises -> 230 > Bananes -> 380 > Cerises -> 455 > Cerises -> 510 > Pommes -> 610 10 minutes
  • 6. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 3 • Support du format CSV en entrée • Les articles doivent être séparés par des virgules • Même prix & réductions que pour l’itération 2 Tests > Pommes, Cerises, Bananes -> 325 > Pommes -> 425 10 minutes
  • 7. Formations pour programmeurs par des programmeurs learn.tocraft.fr
  • 8. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 3’ • Support du format CSV repoussé à plus tard, Même deadline !!! • On revient à une entrée par ligne. • La réduction pour les cerises passe à 30 centimes. • Un lot de bananes acheté, le second est offert. Tests Vérifications > Cerises -> 75 > Cerises -> 120 > Bananes -> 270 > Bananes -> 270 > Cerises -> 75 > Pommes -> 175 > Cerises -> 220 > Bananes -> 370 > Pommes -> 470 > Bananes -> 470 > Cerises -> 545 10 minutes
  • 9. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 4 • Support de la localisation • La réduction pour les cerises repassent à 0,20 € • On doit supporter les mots "Apples" et "Mele" pour "Pommes" Tests > Cerises -> 75 > Apples -> 175 > Cerises -> 230 > Bananes -> 380 > Bananes -> 380 10 minutes Vérifications > Cerises -> 75 > Apples -> 175 > Cerises -> 230 > Bananes -> 380 > Pommes -> 480 > Mele -> 580
  • 10. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 5 • Support de la localisation par article • Le support du CSV est pour la prochaine itération • 3 lots de "Apples" valent 2 € • 2 lots de "Mele" valent 1,50 € Tests > Mele -> 100 > Apples -> 200 > Apples -> 300 > Pommes -> 400 > Apples -> 400 > Mele -> 450 > Cerises -> 525 > Cerises -> 580 10 minutes
  • 11. Formations pour programmeurs par des programmeurs learn.tocraft.fr
  • 12. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 5’ • On a déployé du nouveau Hardware, faut redeployer asap. • Même deadline • 3 lots de "Apples" valent 2 € • 2 lots de "Mele" valent 1 € Tests Vérifications > Mele, Apples, Apples, Pommes, Apples, Mele, Cerises, Cerises, Bananes -> 680 > Cerises, Apples -> 175 > Cerises -> 230 > Apples, Pommes, Bananes -> 580 > Apples, Pommes -> 680 > Mele -> 780 > Pommes -> 880 10 minutes
  • 13. Formations pour programmeurs par des programmeurs learn.tocraft.fr ITERATION 6 • Fix Bug + Créer les super réductions • Bug: Support du CSV ET d’une entrée par ligne • 4 pommes achetées, 1 € de réduction • 5 fruits achetés, 2 € de réduction Tests Vérifications > Mele, Apples, Apples, Mele -> 200 > Bananes -> 150 > Mele, Apples, Apples, Pommes, Mele -> 150 > Mele, Apples, Apples, Pommes, Mele -> 100 > Bananes -> 250 10 minutes
  • 14. Formations pour programmeurs par des programmeurs learn.tocraft.fr CONCLUSION • Qui a utilisé un système de gestion de version ? • Qui a utilisé des tests, a partir de quelle itération ? • Qui a écrit et maintenu des tests d’acceptance ? • Quid du code de CSV lorsqu’il n’était plus nécessaire • Est-ce que votre code est propre ? • Est-ce que votre code répond au besoin ?