IOS -NSRunLoop in XCTest: How Do I Get A Run Loop to Work in A Unit Test?

Question

OK. I looked around, and didn\'t find an exact answer to my issue.

I am trying to test a timeout handler in a unit test (not the main run).

The issue seems t

Answer 1

Looks something like this in Swift 3.0 with XCTest.

// somebody has to call the .fulfill() method on this variable 
// to the expectation will fail after 25 seconds
var asyncExpectation : XCTestExpectation!

func testExample() {
    asyncExpectation = expectation(description: "longRunningFunction")
    self.waitForExpectations(timeout: 25.0) { (error) in
        if let error = error {
            print("Error \(error)")
        }
    }
    // more stuff here
}