在棉花糖

Question

檢測祝酒詞我正在寫與咖啡一些用戶界面測試，我想斷言敬酒消息。我遇到的問題是我的代碼在棒棒糖上工作，但在棉花糖上失敗，我不明白爲什麼。

我的代碼基本上是打開一個對話框，填寫電子郵件，點擊一個按鈕。這應該提出一個敬酒和它（確認在設備上的視覺檢查），但我的測試未能檢測到吐司。

爲此，我創建了祝酒自定義匹配類：

import android.os.IBinder; 
import android.support.test.espresso.Root; 
import android.view.WindowManager; 

import org.hamcrest.Description; 
import org.hamcrest.Matcher; 
import org.hamcrest.TypeSafeMatcher; 

import static com.google.android.exoplayer.util.Assertions.checkArgument; 
import static com.google.android.exoplayer.util.Assertions.checkNotNull; 
import static org.hamcrest.CoreMatchers.equalTo; 

public class ToastMatcher{ 

    public static Matcher<Root> withToastText(String toastText) { 
     // use preconditions to fail fast when a test is creating an invalid matcher. 
     checkArgument(!(toastText.equals(null))); 
     return withToastText(equalTo(toastText)); 
    } 

    public static Matcher<Root> withToastText(final Matcher<String> matcherText) { 

     // use preconditions to fail fast when a test is creating an invalid matcher. 
     checkNotNull(matcherText); 
     return new TypeSafeMatcher<Root>() { 

      public void describeTo(Description description) { 
       description.appendText("is toast"); 
      } 

      @Override 
      public boolean matchesSafely(Root root) { 
       int type = root.getWindowLayoutParams().get().type; 
       if ((type == WindowManager.LayoutParams.TYPE_TOAST)) { 
        IBinder windowToken = root.getDecorView().getWindowToken(); 
        IBinder appToken = root.getDecorView().getApplicationWindowToken(); 
        if (windowToken == appToken) { 
         // windowToken == appToken means this window isn't contained by any other windows. 
         // if it was a window for an activity, it would have TYPE_BASE_APPLICATION. 
         return true; 
        } 
       } 
       return false; 
      } 

     }; 
    } 
} 

至於我的測試案例

@Test 
public void success() { 
    String successMessage = mActivityRule.getActivity().getResources().getString(R.string.info_recover_instructions); 
    String ok = mActivityRule.getActivity().getResources().getString(android.R.string.ok); 
    // Click forgot button 
    onView(withId(R.id.lg_forgot)).perform(click()); 
    // Fill email 
    onView(withClassName(endsWith("EditText"))).perform(typeText(USERNAME)); 
    // Click OK button 
    onView(withText(ok)) 
      .check(matches(isEnabled())) 
      .perform(click()); 
    // Assert Toast 
    onView(withText(successMessage)).inRoot(ToastMatcher.withToastText(successMessage)).check(matches(isDisplayed())); 
} 

正如我以前說過，這適用於棒棒糖就好了，但是棉花糖它給我以下錯誤：

android.support.test.espresso.NoMatchingRootException: Matcher 'is toast' did not match any of the following roots: [Root{application-window-token=android.view.ViewRootImpl$W@a66b932, window-token=android.view.ViewRootImpl$W@a66b932, has-window-focus=true, layout-params-type=2, layout-params-string=WM.LayoutParams{(0,0)(wrapxwrap) gr=#11 sim=#20 ty=2 fl=#1820002 fmt=-3 wanim=0x103045c needsMenuKey=2}, decor-view-string=DecorView{id=-1, visibility=VISIBLE, width=1026, height=483, has-focus=false, has-focusable=false, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}, Root{application-window-token=android.view.ViewRootImpl$W@8d64683, window-token=android.view.ViewRootImpl$W@8d64683, has-window-focus=false, layout-params-type=2, layout-params-string=WM.LayoutParams{(0,0)(wrapxwrap) gr=#11 sim=#20 ty=2 fl=#1800002 fmt=-3 wanim=0x103045c needsMenuKey=2}, decor-view-string=DecorView{id=-1, visibility=VISIBLE, width=1026, height=598, has-focus=true, has-focusable=true, has-window-focus=false, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}, Root{application-window-token=android.view.ViewRootImpl$W@90a2000, window-token=android.view.ViewRootImpl$W@90a2000, has-window-focus=false, layout-params-type=1, layout-params-string=WM.LayoutParams{(0,0)(fillxfill) ty=1 fl=#81810100 wanim=0x103045b needsMenuKey=2}, decor-view-string=DecorView{id=-1, visibility=VISIBLE, width=1080, height=1920, has-focus=true, has-focusable=true, has-window-focus=false, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=3}}] 

我是否做錯了什麼或應該不要不同的Android棉花糖？

Answer 1

嘗試了這一點。不知道它是否會在棉花糖上工作：

onView(withText(R.string.toastText))  
    .inRoot(withDecorView(not(is(mActivityRule.getActivity().getWindow().getDecorView())))) 
     .check(matches(isDisplayed()));