ios - 单元测试 - 来自 viewcontroller 的调用导航为零

Question

当我从 View Controller 调用导航 Controller 时，导航 Controller 变为零。 如何访问导航 Controller ？

override func setUp() {
    self.viewController = storyboard.instantiateViewControllerWithIdentifier("FirstViewController") as! FirstViewController
    self.viewController.loadView()
    XCTAssertNotNil(self.viewController.navigationController,"Navigation is nil")
}

Answer 1

要测试 navigationController，您需要将它添加到 View Controller 数组中。

func testViewControllerShouldHaveNavigationController() {
    let viewController = UIViewController()
    let navigation = UINavigationController()
    navigation.viewControllers = [viewController]
    XCTAssertNotNil(viewController.navigationController)
}