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409 - TESTING IN XCODE
Gavin [email protected]
@IppoippoSftware
www.ippoippo-software.com
Sunday, 20 October 13
WHO AM I?
• Previously an Enterprise Java developer for 15 years for my day job
• Now work as Ruby developer for my day job
• Mac user since 2006, iOS devices since 2008.
• Dabbled with Obj-C since 2008, but started investing more time from start of this year.
Sunday, 20 October 13
WHY?
Sunday, 20 October 13
WHY?
WARNING
Generalisation and
Stereotypes
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WHY?
Sunday, 20 October 13
WHY?
• The Ruby development world has a strong testing ethos, typically ‘spec’ (or human readable) orientated. Leads the way, but sometimes tooling is fragile.
• Enterprise Java development world was slower to catch on, but JUnit is used heavily now. However, the tooling is solid.
• Despite xUnit coming from Smalltalk, historically Unit Testing was never big in ‘old’ Objective-C world.
• New generation of Obj-C devs are driving Unit Testing with 3rd party tools (Kiwi, Expecta, OCMock, OCMockito, Specta)
Sunday, 20 October 13
WHAT’S THE MAIN TOPIC IN THE VIDEO?
• Unit Testing basics (why and what) 04:14 to 07:15
• New Frameworks and Tools (XCTest and XCode updates) 07:15 to 33:20
• Continuous Integration 33:20 to 45:00
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WHAT KIND OF VALUE FROM WATCHING IT?
• New Objective-C developers who have not experienced Unit Testing elsewhere get an overview of the ‘why’?
• Understand that Apple is adopting ‘best practice’ as used elsewhere in the industry.
• For experienced ‘unit testers’, understand what improvements Apple has added to tools (and to understand what is still missing)
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MOST INTERESTING POINTS?
• 1:18 - “Why Test?” According to Apple
• Catch ‘crashers’ - No1 reason why apps are rejected.
• Helps development in teams
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MOST INTERESTING POINTS?
• 7:09 - “Where to start testing”
• Using out of the box XCode tools, Models and Controllers are ‘easier’ to test.
Sunday, 20 October 13
MOST INTERESTING POINTS?
• 10:25 - Test Navigator
• For previous IntelliJ, RubyMine, Eclipse etc users... IDE tools
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MOST INTERESTING POINTS?• 20:00 - Checklist for what
you should test for
• For people experience in Unit Testing in other languages, but new to Objective-C...
• The failures to check for list is very useful as Objective-C specific
Sunday, 20 October 13
MOST INTERESTING POINTS?• 21:22 - setUp
• ‘shim’ ==> Ohh, you mean a mock object!
• So, XCTest comes with Mocking support, No? Dammit!
• We rely on 3rd-parties still, like OCMock, or OCMockito (or Kiwi)
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MOST INTERESTING POINTS?
• 23:35 - iOS6
• If you want to support iOS6, you need to use the older OCTest still!
Sunday, 20 October 13
MOST INTERESTING POINTS?• 33:20 - CI with an Apple
flavour
• Relies on OS X Server, rather than support for existing tools (like Jenkins etc).
• Allows testing of software on• Multiple connected iOS Devices
• Multiple iOS Sims
• Multiple iOS VersionsFailing on iPad mini iOS6,working on iPhone iOS7
Sunday, 20 October 13
MOST INTERESTING POINTS?
• 46:42 - Already have CI (example, company doing non Obj-C work as well as iOS Apps)?
• Use the command line tools, and integrate that way rather than rely on OS X Server
Sunday, 20 October 13
OTHER RESOURCES• http://iosunittesting.com
• http://qualitycoding.org
• http://pragprog.com/magazines/2012-10/its-not-about-the-unit-tests• “iOS developers generally don’t unit test. So why then do they as a community seem to
enjoy a reputation for quality? No unit tests. No continuous integration. No TDD.”
• An out of date quote now? Unit Testing does not guarantee quality. However, it’s a tool that helps you get there if you are already in the right ‘quality’ mindset.
Sunday, 20 October 13
