What is the purpose of XCTestCase's setUp method?

Question

Per the comment within the default template for XCTestCase regarding setUp :

Put setup code here; it will be run once, before the fir

Answer 1

I came here with almost the same problem: how to perform the setUp just once and in Swift. Here is the solution:

override class func setUp() {
    super.setUp()    
    // ...
}

override class func tearDown() {    
    // ...
    super.tearDown()
}

Right now I'm still looking for a solution for an asynchronous setUp!