单元测试Interface Builder和Storyboard开发

Question

Does this kind of unit testing makes sense?

func testPreferencesTabViewControllerNotNil() {
    var sb = NSStoryboard(name: "Main", bundle: nil)
    var window = sb?.instantiateControllerWithIdentifier("pref") as NSWindowController

    var tabs = window.window?.contentViewController as NSTabViewController
    XCTAssertNotNil(tabs, "Preferences window NSTabViewController must not be nil.")

}

func testPreferencesTabViewStyleIsToolBar() {
    var sb = NSStoryboard(name: "Main", bundle: nil)
    var window = sb?.instantiateControllerWithIdentifier("pref") as NSWindowController

    var tabs = window.window?.contentViewController as NSTabViewController
    XCTAssert(tabs.tabStyle == NSTabViewControllerTabStyle.Toolbar, "Preferences window NSTabViewController tab style must be Toolbar.")
}

func testFirstPreferencesTabViewIsGeneral() {
    var sb = NSStoryboard(name: "Main", bundle: nil)
    var window = sb?.instantiateControllerWithIdentifier("pref") as NSWindowController
    var tvc = window.window?.contentViewController as NSTabViewController
    var tvi = tvc.tabViewItems[0] as NSTabViewItem

    XCTAssert(tvi.viewController? is GeneralPreferencesViewController, "First Preferences Tab must be General Preferences")
    XCTAssert(tvi.label == "General" , "First Preferences Tab must have title ")

}

This is testing mostly Interface Builder configurations, so, should we make the supposition that everything is properly configured?

Answer 1

To me this looks like you are trying to validate and test your user interface. I think the better way for this is to use UIAutomation instrument . Also, I highly recommend using the brilliant tuneup_js library with it.