How Tests Work in Xcode

Testing functionality was introduced in Xcode 5. Apple based many of its built-in functions on accepted and open source frameworks and has been working very hard to make testing a vital and useful tool in your developer utility belt.

We are going to go over several aspects of testing in Xcode in this chapter. Since we have spent a great deal of time creating and developing the PragmaticTweets app, let’s run it through some tests to see how it works.

images/testing/xcode-test-files.png

Let’s direct our attention to the File Navigator, shown in this figure. There is a group titled PragmaticTweetsTests. Xcode has conveniently created this group and sample ...

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