TDD in Xcode Playgrounds

TDD in Xcode Playgrounds

Apart from being an awesome code prototyping tool, the Xcode Playgrounds can also be used for Test Driven Development.

In this short talk, Paul will show you how to unit test your code using Playgrounds, how to make use 3rd party libraries and generally how to avoid the excuse of testing being too hard :)

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Paul Ardeleanu

March 30, 2017
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  1. TDD using Xcode Playgrounds  Paul Ardeleanu @pardel

  2. TDD using Xcode Playgrounds - London, March 2017 @pardel Test

    Driven Development 
  3. TDD using Xcode Playgrounds - London, March 2017  @pardel

    TDD according to Wikipedia “Test-driven development (TDD) is a software development process that relies on the repetition of a very short development cycle: requirements are turned into very specific test cases, then the software is improved to pass the new tests, only. This is opposed to software development that allows software to be added that is not proven to meet requirements.” https://en.wikipedia.org/wiki/Test-driven_development
  4. TDD using Xcode Playgrounds - London, March 2017 @pardel Test

    Driven Development 
  5. TDD using Xcode Playgrounds - London, March 2017  @pardel

    Pick a feature to implement making sure it’s a small enough unit. FEATURE Change any of the existing code making sure ALL tests are passing. REFACTOR Write a failing test. Stop as soon as you get a failure. RED Write code to pass the test. Write as little code as possible. GREEN L ( ) TDD lifecycle Feature, Red, Green, Refactor
  6. TDD using Xcode Playgrounds - London, March 2017  @pardel

    New feature create test enough code to make it pass successful test execution No anything to refactor Yes Yes refactoring No Ya Ain’t Gonna Need It TDD lifecycle Feature, Red, Green, Refactor
  7. TDD using Xcode Playgrounds - London, March 2017 @pardel Testing

    in iOS 
  8. TDD using Xcode Playgrounds - London, March 2017  @pardel

    Testing in iOS XCTest - Xcode 5
  9. TDD using Xcode Playgrounds - London, March 2017  @pardel

    Testing in iOS XCTest - Xcode 5
  10. TDD using Xcode Playgrounds - London, March 2017 @pardel Demo

  11. TDD using Xcode Playgrounds - London, March 2017 @pardel Unit

    tests 
  12. TDD using Xcode Playgrounds - London, March 2017 @pardel 

    m.pardel.net
  13. TDD using Xcode Playgrounds - London, March 2017 @pardel leanpub.com/test-gtfo

  14. TDD using Xcode Playgrounds - London, March 2017 @pardel

  15. TDD using Xcode Playgrounds - London, March 2017  @pardel

    TDD Workshop
  16. TDD using Xcode Playgrounds - London, March 2017 @pardel Thank

    you! paul@lupo.uk