TDD in iOS Development by examples Marko Čičak Igor Stojanović.
71
TDD in iOS Development by examples Marko Čičak Igor Stojanović
-
Upload
maude-stafford -
Category
Documents
-
view
240 -
download
0
Transcript of TDD in iOS Development by examples Marko Čičak Igor Stojanović.
TDDin
iOSDevelopment
by examples
Marko ČičakIgor Stojanović
AGENDA1: TDD - how we started with
2: A full cup of TDD
3: Conclusion
4: Questions
TDD – HOW WE STARTED
- Java testing tools:
- JUnit
- TestNG
- Checkstyle
- FindBugs
- DbUnit
- Sonar
......
TDD – HOW WE STARTED
- Do you write tests for your iOS applications?
“The best testing is when I see how application works on my mobile device.”
MOBILE DEV. IS HARDComplex applications
MOBILE DEV. IS HARDLots of code
MOBILE DEV. IS HARDSmooth scrolling
MOBILE DEV. IS HARDOffline mode
MOBILE DEV. IS HARDState restoration
MOBILE DEV. IS HARD
MOBILE DEV. IS HARD
- Lots of code.
- No tests.
- Hard to develop and maintain.
- “It doesn’t work but it worked in previous versions.”
- Why didn’t you write tests?
“We didn’t have time”
TDD – HOW WE STARTEDNovember 2013 – CenterDevice iPhone client
- How to test?
- KIF, Frank, Appium, Zucchini, Calabash, UIAutomation...
- Guidelines:
Objective-C
Small learning curve
Easy to write and maintain
Fast execution
TDD – HOW WE STARTEDNovember 2013 – CenterDevice iPhone client
TDD – HOW WE STARTED
TDD
APP DEMO
TDD – NEW PROJECT
TDD – NEW PROJECT
TDD – NEW PROJECT
TDD – NEW PROJECT
TEST APP DELEGATE
TEST APP DELEGATE
TEST APP DELEGATE
TEST APP DELEGATE
TEST APP DELEGATE
TEST APP DELEGATE
SINGLETONS
SINGLETONS
SINGLETONS
SINGLETONS
XCTESTCASE
VIEW MODEL
VIEW MODEL
VIEW MODEL
VIEW MODEL
VIEW MODEL
CORE DATA
CORE DATA
CORE DATA
DATA PROVIDER
DATA PROVIDER
DATA PROVIDER
DATA PROVIDER
PROBLEM WITH ANIMATIONS
PROBLEM WITH ANIMATIONS
PROBLEM WITH ANIMATIONSWhat’s wrong with this code?
PROBLEM WITH ANIMATIONS
PROBLEM WITH ANIMATIONS
LOCALISATION
LOCALISATION
LOCALISATION
MODAL VIEWS
MODAL VIEWS
MODAL VIEWS
ALERT VIEWS
ALERT VIEWS
BENEFITS
- Early recognition if something is missing or not well specified.
- Tells you whether your last change or refactoring broke existing functionality.
- Prevents regression and future bugs
- New developer can figure out business logic through tests.
- Less time spent in debugging.
- Forces you to write small classes etc...
DISADVANTAGES
- It’s not trivial to learn because we didn’t used to write tests firsts.
- Could impact design.
- Code refactoring may impact tests.
- Can be short sighted.
OTHER TOOLS FOR TDD
- Expecta – XCTest extension
- OCMock – Helper for easier creation of stub objects
- Specta – TDD/BDD framework for Objective-C
- FBSnapshotTestCase – Snapshot view unit tests for iOS
- OCHamcrest - Hamcrest for Objective-C
- OCMockito
.....
CONCLUSIONTDD IS ONE MORE TOOL
IN YOUR DEVELOPER TOOLBOX
TESTING TOOLS
- KIF - https://github.com/kif-framework/KIF
- Zucchini - https://github.com/playup/zucchini
- Appium - http://appium.io
- Calabash - https://github.com/calabash/calabash-ios
- OCMock - http://ocmock.org
- Expecta - https://github.com/specta/expecta
- Specta - https://github.com/specta/specta
- FBSnapshotTestCase - https://github.com/facebook/ios-snapshot-test-case
- OCHamcrest - https://github.com/hamcrest/OCHamcrest
- OCMockito - https://github.com/jonreid/OCMockito
INTERESTING READ- Test-Driven iOS Developmet by Graham Lee
http://www.amazon.com/Test-Driven-iOS-Development-Developers-Library/dp/0321774183
- Test-Driven Development by Example by Kent Beck
http://www.amazon.com/Test-Driven-Development-By-Example/dp/0321146530
- Pseudo-Localization for Cocoa Apps – blog by Daniel Schneller
https://blog.codecentric.de/en/2013/10/pseudo-localization-cocoa-apps/
- Test-driven development - wikipedia
http://en.wikipedia.org/wiki/Test-driven_development
- Unit Testing Notification Observing on iOS – blog by Nikola Lajic
https://blog.codecentric.de/en/2014/09/unit-testing-notification-observing-ios/
QUESTIONS
