LoginScreen.swift

class LoginScreen {
  var app: XCUIApplication
  
  let identifier = "german-icon"

  var usernameTextField: XCUIElement { return app.textFields["usernameTextField"] }
  var passwordTextField: XCUIElement { return app.secureTextFields["passwordTextField"] }
  var loginButton: XCUIElement { return app.buttons["loginButton"] }
  
  init(app: XCUIApplication) {
    self.app = app
  }

  func enter(username: String) {
    emailTextField.write(string: username)
  }

  func enter(password: String) {
    passwordTextField.write(string: password)
  }

  func tapLogin() {
    loginButton.tap()
  }

  func login(withUsername username: String, password: String) {
    enter(username: username)
    enter(password: password)
    tapLogin()
  }
}