Agile Swift: Swift Programming Using Agile Tools and by Godfrey Nolan

By Godfrey Nolan

This brief step-by-step consultant walks you thru unit trying out, mocking and non-stop integration and the way to get those key constituents working on your speedy initiatives. This ebook additionally appears at easy methods to write your quick apps utilizing attempt pushed improvement (TDD).
Agile practices have made significant inroads in iOS improvement, in spite of the fact that it’s very strange to work out whatever as easy as unit checking out on a rapid software. performed thoroughly, Agile improvement ends up in an important bring up in improvement potency and a discount within the variety of defects.
Apple has published unit checking out and code assurance frameworks for fast improvement in XCode. Up before getting unit trying out up and operating in fast used to be now not for the faint-hearted. fortunately now, there isn't any excuse except an absence of knowledge on the place to get started.
iOS builders are confronted with their very own set of difficulties akin to tightly coupled code, fragmentation, immature checking out instruments all of which are solved utilizing latest Agile instruments and methods. After utilizing this e-book, you will how to make your fast apps agile and sound.
What you'll Learn:

  • How to write down unit exams in Swift
  • How to write down an software utilizing try out pushed Development
  • Refactoring
  • Mocking frameworks
  • How to establish and configure a continuing Integration Server
  • How to degree code coverage
  • GUI Testing

Who This booklet Is For:
Swift builders and will be cellular app testers will enjoy the tips during this book.

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Extra info for Agile Swift: Swift Programming Using Agile Tools and Techniques

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Connect the Clear button 11. Finally, we connect the text field where we are going to place the results of our calculations. 12. Hold control and drag the text field to the ViewController code. 13. In the menu that pops up, choose the following and click Connect; see Figure 2-14. • Connection: Outlet • Name: resultsFld • Type: UITextField • Storage: Strong Figure 2-14. Connecting the Clear button 40 Chapter 2 ■ Swift Unit Testing Completing the ViewController Code Listing 2-7 shows the complete code for our ViewController, including the compute, operation, and clear fields.

We’ll talk about how to do that in the chapter on mocking. 44 Chapter 2 ■ Swift Unit Testing Unit tests should be repeatable and give you the same result each time. Users will lose confidence if your tests start to produce random behavior. Unit tests should be self-verifying. We’re familiar with the concept of assertions and we know that they are part of the Setup-Record-Verify process of unit testing. But are we sure that our unit tests are testing our code adequately? Are they only testing happy paths or are they also testing enough edge cases so we can be confident when we add new features?

At its most basic, a unit test should have the following “first” qualities, which were first coined by Tim Ottinger and Brett Schuchert: • Fast • Isolated • Repeatable • Self-verifying • Timely FIRST Unit Tests There’s no point in writing unit tests unless they finish fast. If they’re too slow then over time they will get skipped as people get bored. Unit tests should be isolated so that your tests don’t have to worry about whether a third-party server is running or not or if the WiFi is down. We’ll talk about how to do that in the chapter on mocking.

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