Welcome to "XCUITest - UI Test Framework in Swift"

The UI Test Automation Framework used in this sample project has the following prime compositions:

1. BaseClass

• extends XCTestCase class of XCTest framework
• serves as the universal Base Class to the entire UI Test framework
• All tests in the UI Test project shall follow the commands mentioned in BaseClass
• Invokes the following methods:
  • setUp()
  • tearDown()

2. TestClass

• extends the above mentioned BaseClass
• consists of tests

Each test follow Fluent Page Object Model design Pattern:

 func testCalculateSum() {
    let calculateScreen = CalculateScreen(app)
    
    calculateScreen
        .enter(number: two, in: calculateScreen.firstTextField)
        .enter(number: five, in: calculateScreen.secondTextField)
        .tapOn(button: calculateScreen.computeButton)
    
    XCTAssertEqual(seven, calculateScreen.actual)
 }

3. TestData enum

• Test Data management is essential in any test framework

• Agenda is to have all the test data in one place for better reuse

  enum TestData {
     static let one = 1
  } 
  

4. UniqueId enum

• Accessibility Identifiers

• Intention is to use the same accessibility identifiers in dev code and test code for all the elements

   enum UniqueId {
      static let computeButton = "ComputeSumButton"
   }
  

5. LandingPageElements class

• lists down all the elements in one place to avoid test code duplication & thus improves better reusability.

  lazy var computeButton = app.buttons[UniqueId.computeButton].firstMatch

  lazy var actual = Int(app.staticTexts[UniqueId.answerLabel].firstMatch.label)

6. UIStatus enum

• Wait for different kind of actions

7. CalculateScreen class

• basis of page objects
• consists of optimised test code
• concentrates on reusability
• helps in achieving fluent interface

Non Optimised:

func calculateSum(firstNumber: Int, secondNumber: Int) {
    firstTextField.tap()
    firstTextField.typeText(String(firstNumber))
    secondTextField.tap()
    secondTextField.typeText(String(secondNumber))
    computeButton.tap()
}

Optimised: Recommended way

func enter(number: Int, in field: XCUIElement) -> Self {
    field.tap()
    field.typeText(String(number))
    return self
}

func tapOn(button: XCUIElement) {
    expect(element: button, status: .hittable, withIn: 20)
    button.tap()
}