### Question:
WSCXMLServiceProvider implements ServiceProvider<String> { @Override public Operation<String> getOperation(String operationID) { Service<String> service = getService(operationID.substring(0, operationID.indexOf(operationSuffix))); if (service != null){ return service.getOperations().iterator().next(); } return null; } WSCXMLServiceProvider(InputStream serviceStream);  WSCXMLServiceProvider(File xmlServices); Service<String> getService(String serviceID); @Override Operation<String> getOperation(String operationID); @Override Iterable<Operation<String>> getOperationsWithInput(String inputInstance); @Override Iterable<Operation<String>> getOperationsWithOutput(String outputInstance); @Override Iterable<Operation<String>> getOperations(); @Override Iterable<Service<String>> getServices(); @Override Set<String> listOperations(); @Override Set<String> listServices(); static final String operationSuffix; }### Answer:
@Test public void testGetOperation() throws Exception { Operation<String> op = provider.getOperation("serv699915007Operation"); assertNotNull(op); assertEquals("serv699915007", op.getServiceOwner().getID()); Set<String> expectedInputs = Sets.newHashSet("inst1716616603", "inst1689375842", "inst102675811"); Set<String> expectedOutputs = Sets.newHashSet("inst725927364", "inst731046963", "inst1631413303"); assertEquals(expectedInputs, op.getSignature().getInputs()); assertEquals(expectedOutputs, op.getSignature().getOutputs()); }