### Question:
ProcessManager implements IOFogModule { @Override public int getModuleIndex() { return PROCESS_MANAGER; } private  ProcessManager(); @Override int getModuleIndex(); @Override String getModuleName(); static ProcessManager getInstance(); void update(); void deleteRemainingMicroservices(); void stopRunningMicroservices(boolean withCleanUp, String iofogUuid); void instanceConfigUpdated(); void start();  }### Answer:
@Test public void testGetModuleIndex() { assertEquals(Constants.PROCESS_MANAGER, processManager.getModuleIndex()); }