What tools or approaches have you used in creating automated tests?

The following tools and approaches are often used when creating automated tests for iOS:

• XCTest — the standard framework for writing unit and UI tests in Swift or Objective-C.
• XCUITest — an extension of XCTest for UI testing, allowing automation of interactions with the app's interface.
• Fastlane — a tool for automating the building, testing, and deployment of applications.
• Appium — a cross-platform tool for automating mobile applications, supporting iOS.

Approaches:

• Separating tests into unit tests and UI tests.
• Using mocks and stubs to isolate tested components.
• Running tests in parallel to speed up the process.
• Integrating tests into CI/CD pipelines.

Example of a simple UI test in Swift with XCTest:

func testLoginButtonExists() {
    let app = XCUIApplication()
    app.launch()
    XCTAssertTrue(app.buttons["Login"].exists)
}