iOS UI Unit Testing (XCode7)

问题

I'm a bit confused with the new UI Unit Testing scheme that apple released in their XCode7 Beta. I think it's an awesome idea, but I have a couple questions.

this is one testing method I have...

func testMetricsProperties() {
    // Used some of the metrics for testing for reference

    let app = XCUIApplication()
    app.scrollViews.descendantsMatchingType(.Unknown).containingType(.StaticText, identifier:"rim").childrenMatchingType(.Button).element.tap()
    app.textFields["_XCUI:Secure"].typeText("")
    app.typeText("\r")
    app.buttons["dash metrics"].tap()

    let element = app.descendantsMatchingType(.Unknown).containingType(.Image, identifier:"darkBackground.png").childrenMatchingType(.Unknown).element.childrenMatchingType(.Unknown).elementBoundByIndex(1).childrenMatchingType(.Unknown).element.childrenMatchingType(.Unknown).element
    let offPlanRevenue = element.childrenMatchingType(.Unknown).elementBoundByIndex(0).staticTexts["OFF PLAN REVENUE"]
    offPlanRevenue.tap()

    XCTAssert(offPlanRevenue.exists);
    XCTAssertEqual(offPlanRevenue.value as! String, "");
}

However, in the next testing method, it seems that I have to load the entire app again,

let app = XCUIApplication()
    app.scrollViews.descendantsMatchingType(.Unknown).containingType(.StaticText, identifier:"im").childrenMatchingType(.Button).element.tap()
    app.textFields["_XCUI:Secure"].typeText("")
    app.typeText("\r")
    app.buttons["dash metrics"].tap()
}

Is there anyway I can avoid this? This can be troublesome if i'm trying to run a full test on an entire suite.

回答1:

I believe what you are looking for is using the setUp() and tearDown() methods. setUp() gets called before each test method and tearDown() gets called after each test method for a class.

override func setUp() {
    super.setUp()
      // Put setup code here. This method is called before the invocation of each test method in the class.
  }

  override func tearDown() {
    // Put teardown code here. This method is called after the invocation of each test method in the class.
    super.tearDown()
  }

Use these to clean up between testing methods back to the app's original state.

来源：https://stackoverflow.com/questions/31521916/ios-ui-unit-testing-xcode7