### Question:
ProcessManager implements IOFogModule { public static ProcessManager getInstance() { if (instance == null) { synchronized (ProcessManager.class) { if (instance == null) instance = new ProcessManager(); } } return instance; } 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 testGetInstanceIsSameAsMock() { assertSame(processManager, ProcessManager.getInstance()); }