Upgrade to Pro — share decks privately, control downloads, hide ads and more …

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 :)

Paul Ardeleanu

March 30, 2017
Tweet

More Decks by Paul Ardeleanu

Other Decks in Programming

Transcript

  1. 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
  2. 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
  3. 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