import Foundation import XCTest let defaultHandler: XCWaitCompletionHandler = { (err: Error?) -> Void in if let e = err { print("Timeout expired with error \(e)") } } extension XCTestCase { public func wmf_waitForExpectations(_ timeout: TimeInterval = WMFDefaultExpectationTimeout, handler: XCWaitCompletionHandler? = nil) { self.waitForExpectations(timeout: timeout, handler: handler != nil ? handler : defaultHandler) } }