XCTestCase

class UITests: XCTestCase {
          private var launched = false
          let app = XCUIApplication()
          override func setUp() {
              super.setUp()
              continueAfterFailure = false
              launchIfNecessary()
          }
          private func launchIfNecessary() {
              if !launched {
                  launched = true
                  app.launchEnvironment = [“animations”: “0”]
                  app.launch()
              }
          }
          func testDetail() { ... }
          func testPopover() { ... }
          func testActionSheet() { ... }
      }