IOS UITest 初始化 ViewController

import XCTest
@testable import UITestDemo

class UITestDemoTests: XCTestCase
{

    var homevc:HomeViewController? ;
    override func setUp() {
        super.setUp()
        //
        let sb=UIStoryboard.init(name: "Main", bundle: nil);
        homevc = sb.instantiateViewControllerWithIdentifier("homeVC") as? HomeViewController;
        homevc?.loadView();//初始化viewController

    }

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

    }

    func testExample() {
        homevc!.ClickBtnSubmit("");//触发发点击事件
        XCTAssertEqual(homevc!.tfName.text ,"y");//断言文本框内的值是y
    }

　　主要是 下面这句. 这样就可以测试controller里的大部分逻辑了.

 homevc?.loadView();//初始化viewController