### Question:
KeyValueBackupReporter { IBackupObserver getObserver() { return mObserver; } KeyValueBackupReporter(
            UserBackupManagerService backupManagerService,
            IBackupObserver observer,
            @Nullable IBackupManagerMonitor monitor);   }### Answer:
@Test public void testGetObserver_returnsObserver() { IBackupObserver observer = mReporter.getObserver(); assertThat(observer).isEqualTo(mObserver); }