How to run one-time setup code before executing any XCTest

Question

I have the following problem. I want to execute a piece of code before all test classes are executed. For instance: I don\'t want my game to use the SoundEngine singleton du

Answer 1

If you build a superclass for your test case to be based on, then you can run a universal setup in the superclass and do whatever specific setup you might need to in the subclasses. I'm more familiar with Obj-C than Swift and haven't had a chance to test this yet, but this should be close.

// superclass
class SuperClass : XCTestCase {        
    override func setUp() {
        SilentSoundEngine.activate () // SoundEngine is a singleton
    }
}

// subclass
class Subclass : Superclass {
    override func setUp() {
        super.setup()
    }
}