Robolectric與新版Google Play服務的問題

Question

我使用Robolectric進行單元測試，我在我的項目中使用了Google Play服務。這工作得很好，直到昨天，當Google Play服務更新到新版本。我得到這個錯誤：

java.lang.NullPointerException 
at com.google.android.gms.common.GooglePlayServicesUtil.zzh(Unknown Source) 
at com.google.android.gms.common.GooglePlayServicesUtil.zzd(Unknown Source) 
at com.google.android.gms.common.GoogleApiAvailability.isGooglePlayServicesAvailable(Unknown Source) 
at com.google.android.gms.common.api.zzg$zze.zznn(Unknown Source) 
at com.google.android.gms.common.api.zzg$zzi.run(Unknown Source) 
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
at java.lang.Thread.run(Thread.java:745) 

Process finished with exit code 255 

看來Shadow類沒有被調用，GooglePlayServicesUtil被稱爲給出NullPointerException。有沒有人看過這個？

我甚至沒有在測試中使用Google Play服務。

Answer 1

我已經添加了接下來的一種方法，它工作正常：

1. 提取所有PlayServices'相關代碼的實用工具類（對我來說，這只是可用性檢查）：

   public class PlayServicesUtils { 
   
       private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000; 
   
       public static final int AVAILABLE = 1; 
       public static final int ERROR_RESOLVABLE = 2; 
       public static final int ERROR_UNRESOLVABLE = 3; 
   
       @IntDef({AVAILABLE, ERROR_RESOLVABLE, ERROR_UNRESOLVABLE}) 
       @Retention(RetentionPolicy.SOURCE) 
       public @interface PlayServicesAvailability { 
       } 
   
       @PlayServicesAvailability 
       public static int checkPlayServices(@NonNull Activity activity) { 
        GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance(); 
        int resultCode = apiAvailability.isGooglePlayServicesAvailable(activity); 
        if (resultCode != ConnectionResult.SUCCESS) { 
         if (apiAvailability.isUserResolvableError(resultCode)) { 
          apiAvailability.getErrorDialog(activity, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST).show(); 
          return PlayServicesUtils.ERROR_RESOLVABLE; 
         } else { 
          CLog.e(Constants.TAG, "This device does not support Google Play services."); 
          return PlayServicesUtils.ERROR_UNRESOLVABLE; 
         } 
        } 
        return PlayServicesUtils.AVAILABLE; 
       } 
   } 
   

2. 此效用類的工具陰影：

   @Implements(PlayServicesUtils.class) 
   public class ShadowPlayServicesUtils { 
   
       @Implementation 
       @PlayServicesUtils.PlayServicesAvailability 
       public static int checkPlayServices(@NonNull Activity activity) { 
        return PlayServicesUtils.AVAILABLE; 
       } 
   } 
   

3. 添加陰影您的測試類（或基礎水平測試類）：

   @Ignore 
   @RunWith(TestRunner.class) 
   @Config(
        sdk = 18, 
        constants = BuildConfig.class, 
        shadows = { 
          ShadowPlayServicesUtils.class 
        } 
   ) 
   public abstract class BaseTest { 
       // some code, maybe 
   } 
   

4. 添加你的影子的TestRunner的InstrumentationConfiguration創作：

   public class TestRunner extends RobolectricGradleTestRunner { 
       public TestRunner(Class<?> klass) throws InitializationError { 
        super(klass); 
       } 
   
       @Override 
       public InstrumentationConfiguration createClassLoaderConfig() { 
        InstrumentationConfiguration.Builder builder = InstrumentationConfiguration.newBuilder(); 
   
        builder.addInstrumentedClass(PlayServicesUtils.class.getName()); 
   
        return builder.build(); 
       } 
   } 
   

原來的答覆：

我在Robolectric問題跟蹤器和工作上找到了similar issue在那裏提供 - 工作！

就迫使谷歌的成功初始化播放服務：

@Before public void setUp() { 
    // force success every time 
    ShadowGooglePlayServicesUtil.setIsGooglePlayServicesAvailable(ConnectionResult.SUCCESS); 
} 

編輯：

但還有另一種issue Play服務8.3和8.4。而這個問題仍然沒有解決。