### Question:
PaymentApi { public static boolean isProcessingServiceInstalled(Context context) { return BaseApiClient.isProcessingServiceInstalled(context); } private  PaymentApi(); @NonNull static String getApiVersion(); static boolean isProcessingServiceInstalled(Context context); @NonNull static String getProcessingServiceVersion(Context context); @NonNull static PaymentClient getPaymentClient(Context context);  }### Answer:
@Test public void checkIsProcessingServiceInstalledReportsFalse() throws Exception { assertThat(PaymentApi.isProcessingServiceInstalled(RuntimeEnvironment.application)).isFalse(); }
@Test public void checkIsProcessingServiceInstalledFlagReportsTrue() throws RemoteException { setupMockBoundMessengerService(); assertThat(PaymentApi.isProcessingServiceInstalled(RuntimeEnvironment.application)).isTrue(); }