Unit Testing
Unit TestingResponsable#4
Unique#5
Atomique#1Les bonnes pratiques des projets Agiles5
Descriptif#3
Consistent#2
A propos
Denis Voituron
Ingnieur civil (Mons)Foundateur de BMindDveloppeur VB3, VB.Net,
C#Principal .Net ArchitectCrateur DevApps.be Blogger
www.dvoituron.be
2012 Microsoft Corporation. All rights reserved. Microsoft,
Windows, and other product names are or may be registered
trademarks and/or trademarks in the U.S. and/or other countries.The
information herein is for informational purposes only and
represents the current view of Microsoft Corporation as of the date
of this presentation. Because Microsoft must respond to changing
market conditions, it should not be interpreted to be a commitment
on the part of Microsoft, and Microsoft cannot guarantee the
accuracy of any information provided after the date of this
presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY, AS TO THE INFORMATION IN THIS
PRESENTATION.5/21/20162
AgendaConcepts et dfinitionPourquoi tester ?Quoi tester ?Comment
tester ?Les cinq bonnes pratiques des Unit TestsDmonstration
ScrumCadre de travail pour rpondre des problmes changeants, tout
en livrant des produits de qualit.TransparenceTous les processus
doivent tre visibles des participants.Dfinition dun standard commun
(ex. dfinir Termin).InspectionLquipe doit frquemment inspecter
lavancement et les artfacts Scrum.AdaptationAjuster, ds que
possible, les drives dtectes.
Participants
Product OwnerScrum MasterDevelopment Team
1 personneOriente Business2 9 personnesProfessionnels
auto-organiss1 personneFacilitateur Coach Scrum
Product Backlog(Carnet de produit)
Incrment(Produit chaque Sprint)
vnements Users Storieshttp://scrum-poster.comEn tant que
[personne], je voudrais [faire quelque chose], ainsi [bnfice]
vnements Sprint Planninghttp://scrum-poster.com
vnements Sprint http://scrum-poster.com
vnements Daily Scrumhttp://scrum-poster.com
vnements Sprint Reviewhttp://scrum-poster.com
vnementshttp://scrum-poster.comIncrment
vnementshttp://scrum-poster.com
Unit Tests
ConceptsProcdure permettant de vrifier le bon fonctionnement
d'une partie prcise d'un logiciel
Mise en production
Comment mettre en Production dans les annes 2000Fonce, on verra
aprs !
AgilePlanifier les tests sur la route AgileDfinir une stratgie
de testDfinir le cadre des testsRouvrir frquemment les
testsIdentifier les risquesRcuprer des retours frquents
https://www.3pillarglobal.com/insights/5-rules-to-the-road-for-test-planning-in-agile
Pourquoi ?Trouver les erreurs rapidementEcrire les tests en mme
temps, ou mme avant la fonction testerScurise la maintenanceLors
d'une modification d'un programme les tests unitaires signalent les
ventuelles rgressionsDocumentationIl est trs utile de lire les
tests pour comprendre comment s'utilise une mthodewikipedia.org
Quoi ?
Un par assembly, package
Un par classe
Un par unit (pas ncessairement par mthode)@smithderekm
Quoi ?Business EntityData LayerData Access LayerUser
Interface
Unit Testing tests one layer
Integration Testing tests across layers.A Mock allows a
dependency to be imitated so the Unit test can be isolated.
@smithderekmLes mocks sont des objets permettant de simuler un
objet rel de faon contrle.
Ractions
Les dveloppeurs qui doivent crire des Tests Unitaires
Bonnes Pratiques
Cinq Bonnes pratiques#1.Consistent
Toujours retourner la mme valeur, condition que le code soit
identique.DateTime currentDate = DateTime.Now;int value = new
Random().Next();
Cinq Bonnes pratiques#2.Atomique
Ne tester quun petit morceau de fonctionnalit.
Cinq Bonnes pratiques#3.Responsabilit uniqueDoit tre responsable
que d'un seul scnario.void TestMethod(){ Assert.IsTrue(behavior1);
Assert.IsTrue(behavior2);}void TestMethodCheckBehavior1(){
Assert.IsTrue(behavior1);}void TestMethodCheckBehavior2(){
Assert.IsTrue(behavior2);}
Cinq Bonnes pratiques#4.Auto Descriptif
Doit tre facile lire et comprendre
Variable NamesMethod NamesClass Namesvoid CanMakeReservation(){
... }void TotalBillEqualsSumOfMenuItemPrices(){ ... }
Auto Descriptif
Cinq Bonnes pratiques#5.Pas de conditions ou de boucles
Il ne peut pas y avoir dincertitude.void TestBeforeOrAfter(){ if
(before) { Assert.IsTrue(behavior1); } else if (after) {
Assert.IsTrue(behavior2); }}void TestBefore(){
Assert.IsTrue(behavior1);}void TestAfter(){
Assert.IsTrue(behavior2);}
Demo
2012 Microsoft Corporation. All rights reserved. Microsoft,
Windows, and other product names are or may be registered
trademarks and/or trademarks in the U.S. and/or other countries.The
information herein is for informational purposes only and
represents the current view of Microsoft Corporation as of the date
of this presentation. Because Microsoft must respond to changing
market conditions, it should not be interpreted to be a commitment
on the part of Microsoft, and Microsoft cannot guarantee the
accuracy of any information provided after the date of this
presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY, AS TO THE INFORMATION IN THIS
PRESENTATION.5/21/201630
2012 Microsoft Corporation. All rights reserved. Microsoft,
Windows, and other product names are or may be registered
trademarks and/or trademarks in the U.S. and/or other countries.The
information herein is for informational purposes only and
represents the current view of Microsoft Corporation as of the date
of this presentation. Because Microsoft must respond to changing
market conditions, it should not be interpreted to be a commitment
on the part of Microsoft, and Microsoft cannot guarantee the
accuracy of any information provided after the date of this
presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY, AS TO THE INFORMATION IN THIS
PRESENTATION.5/21/201631
Concepts et DfinitionPourquoi Tester ?Quoi Tester ?Comment
Tester ?ConsistentAtomiqueResponsabilit uniqueAuto DescriptifPas de
conditions ou de bouclesUnit Testing
