protected void verifyOutput(String experimentId, String outputVerifyingString) throws Exception {
AiravataAPI airavataAPI = AiravataAPIFactory.getAPI(new URI(getRegistryURL()), getGatewayName(), getUserName(),
new PasswordCallbackImpl());
log.info("Experiment ID Returned : " + experimentId);
ExperimentData experimentData = airavataAPI.getProvenanceManager().getExperimentData(experimentId);
log.info("Verifying output ...");
List<WorkflowExecutionDataImpl> workflowInstanceData = experimentData.getWorkflowExecutionDataList();
Assert.assertFalse("Workflow instance data cannot be empty !", workflowInstanceData.isEmpty());
for (WorkflowExecutionDataImpl data : workflowInstanceData) {
List<NodeExecutionData> nodeDataList = data.getNodeDataList();