### Question:
DeployActivitySpecs { public static void main(String[] args) throws Exception { if (args == null || args.length == 0) { logger.info("Please specify hostname argument"); return; } String hostname = args[0]; File dir = new File(ACTIVITY_FILE_LOCATION); if (!dir.isDirectory()) { logger.debug("ActivitySpec store is not a directory"); return; } if (dir.listFiles() != null) { for (File f : dir.listFiles()) { String activitySpecName = f.getName(); String errorMessage = deployActivitySpec(hostname, activitySpecName); if (errorMessage == null) { logger.debug("Deployed Activity Spec: " + activitySpecName); } else { logger.error("Error deploying Activity Spec: " + activitySpecName + " : " + errorMessage); } } } else { logger.error("Null file list for Activity Specs."); } }  static void main(String[] args);  }### Answer:
@Test public void DeployActivitySpecsMain_Test() throws Exception { String HOSTNAME = createURLWithPort(""); ProtocolVersion protocolVersion = new ProtocolVersion("", 1, 1); HttpResponse response = new BasicHttpResponse(protocolVersion, 1, ""); response.setStatusCode(404); response.setStatusLine(protocolVersion, 1, ""); HttpClient clientMock = mock(HttpClient.class); when(clientMock.execute(any(HttpPost.class))).thenReturn(response); String[] args = new String[] {HOSTNAME}; DeployActivitySpecs.main(args); assertNotNull(HOSTNAME); }