未能完成Android Espresso JUnitTest

Question

我試圖在我的應用程序中創建一個ui測試，但沒有運氣。 每次我得到的錯誤：

android.support.test.espresso.NoActivityResumedException: No activities in stage RESUMED. Did you forget to launch the activity. (test.getActivity() or similar)?

這裏是我的測試代碼：

@RunWith(AndroidJUnit4.class) 
public class UITestApp { 

    @ClassRule 
    public static final LocaleTestRule localeTestRule = new LocaleTestRule(); 


    @Rule 
    public ActivityTestRule<SplashActivity> mainActivityTestRule = new ActivityTestRule<>(MainActivity.class); 


    @Test 
    public void testMainActivity(){ 

     onView(withId(R.id.imageView)).check(matches(isDisplayed())); 
     Screengrab.screenshot("screenshot"); 

    } 
} 

我運行我的模擬器測試，並gradle.build似乎是好的。

Answer 1

痕跡說這一切 - 你需要getActivity。 嘗試添加這代碼：

private SplashActivity splashActivity; 
@Before 
public void setActivity() { 
     splashActivity = mainActivityTestRule.getActivity(); 
}