Quality Assurance Testing
There are many types of QA (quality assurance) testing, though for your purpose, you can focus on three: unit testing, automated functional testing, and integration testing.
Unit tests are usually created by the person writing the code, and they test that a particular feature performs as expected—for example, that correct input works and gives the right result and incorrect input fails appropriately.
Xcode comes with a unit-testing framework that is added to projects by default (at least as of the current Xcode 5 beta). With the addition of a Mac OS X server, you can run sophisticated continuous integration using unit tests and other tools such as static analysis. This is a powerful tool in finding problems while they ...
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