UIテストにおける割り込みやアラート処理 – WWDC2020

override func setUpWithError() throws {
  addUIInterruptionMonitor(withDescription: "Handle recipe update failures") { element -> Bool in
    let retryButton = element.buttons["Retry"].firstMatch
    
    // 割り込み要素がアラートで、「再試行」ボタンがあれば再試行を押下する
    if element.elementType == .alert && retryButton.exists {
        retryButton.tap()
        return true
    } else {
        return false
    }
  }
}

func testRecipeDetailsNavigation() throws {

    let app = XCUIApplication()
    app.launch()

    let pancakeRecipe = app.cells.staticTexts["Fluffy Pancakes"].firstMatch
    pancakeRecipe.tap()

    // In the detail view
    let detailTitle = app.navigationBars.staticTexts["Fluffy Pancakes"].firstMatch
    XCTAssert(detailTitle.waitForExistence(timeout: 30))

    let expectedImage = app.images["Fluffy Pancakes Image"].firstMatch
    XCTAssert(expectedImage.exists)

    let ingredientsTitle = app.staticTexts["Ingredients Title"].firstMatch
    XCTAssert(ingredientsTitle.exists)

    let ingredientsContent = app.textViews["Ingredients Content"].firstMatch
    XCTAssert(ingredientsContent.exists)
    XCTAssert((ingredientsContent.value as! String).count > 0)

    let instructionsTitle = app.staticTexts["Instructions Title"].firstMatch
    XCTAssert(instructionsTitle.exists)

    let instructionsTextView = app.textViews["Instructions Content"].firstMatch
    XCTAssert(instructionsTextView.exists)
    XCTAssert((instructionsTextView.value as! String).count > 0)

    // Make sure we received the latest instructions:
    let expectedInstructions = """
                               1. Mix the flour, sugar, baking powder and salt.

                               2. Pour the milk, melted butter and egg into a well in the center and mix.

                               3. Heat a frying pan (don't forget to add a little bit of oil, grandson!), and fry until they're golden.

                               4. Optionally add maple syrup and/or fruits (they're healthy!).
                               """
    XCTAssertEqual((instructionsTextView.value as! String), expectedInstructions)

    // Go back to the list of recipes
    let backButton = app.navigationBars.buttons["Grandma's Recipes"].firstMatch
    backButton.tap()

    XCTAssert(pancakeRecipe.waitForExistence(timeout: 30))
}

func testAddingPhotosFirstTime() throws {
    let app = XCUIApplication()
　　 
    // ここで写真へのアクセスをリセットしている
    app.resetAuthorizationStatus(for: .photos)

    app.launch() // 再起動する

    // Test code…
}