java.lang.NullPointerException
    at com.google.firebase.analytics.FirebaseAnalytics.logEvent(Unknown Source)

PowerMockito.mockStatic(FirebaseAnalytics.class);
FirebaseAnalytics firebaseAnalytics = Mockito.mock(FirebaseAnalytics.class);

Mockito.when(FirebaseAnalytics.getInstance(any(Context.class))).thenReturn(firebaseAnalytics);
doNothing().when(firebaseAnalytics).logEvent(anyString(), any(Bundle.class));