@Test
public void testRetrieveDocumentSet() {

	// Arrange
	RetrieveDocumentSetRequest req = new RetrieveDocumentSetRequest();
	RetrieveDocumentSetResponse resp = new RetrieveDocumentSetResponse();
	RegistryResponseType regResp = new RegistryResponseType();
	regResp.setRequestId(TEST_REQUEST_ID);
	resp.setRegistryResponse(regResp);
	PepService service = new PepService(wsdlURL, serviceName);
	PepPortType port = service.getXDSHTTPEndpoint();
	when(pep.retrieveDocumentSet(isA(RetrieveDocumentSetRequest.class))).thenReturn(resp);
	
	// Act
	RetrieveDocumentSetResponse response = port.retrieveDocumentSet(req);
	// Assert
	assertEquals(resp.getRegistryResponse().getRequestId(), response.getRegistryResponse().getRequestId());
}