Blog_Gherkin.swift

struct Step {
  
  @discardableResult
  init(I handler: () -> Void) {
    runActivity(for: handler)
  }
  
  @discardableResult
  init(I handler: @autoclosure () -> Void) {
    runActivity(for: handler)
  }
  
  private func runActivity(for handler: () -> Void) {
    let activityName = // Somehow turn the handler into a descriptive string for the activity name
    XCTContext.runActivity(named: activityName) { _ in
      handler()
    }
  }
  
}