### Question:
StubFactory { public static VirtualIps getVirtualIpsDetails() { VirtualIp vip1 = new VirtualIp(); vip1.setClusterId(rndInt(0, 1000)); vip1.setAddress(rndIp()); vip1.setType((VipType) rndChoice(VipType.values())); vip1.setId(rndInt(0, 1000)); vip1.setLoadBalancerId(rndInt(0, 1000)); VirtualIp vip2 = new VirtualIp(); vip2.setClusterId(2); vip2.setLoadBalancerId(2); vip2.setType(VipType.SERVICENET); vip2.setId(1); VirtualIps vips = new VirtualIps(); vips.getVirtualIps().add(vip2); vips.getVirtualIps().add(vip1); return vips; }  static Clusters getClustersDetails(); static VirtualIps getVirtualIpsDetails(); static VirtualIpAvailabilityReport retrieveRndVipsAvailabilityReport(); static VirtualIpAvailabilityReport retrieveVipsAvailabilityReport(int id); static VirtualIpAvailabilityReports retrieveRndVipsAvailabilityReports(int max); static VirtualIpAvailabilityReports retrieveVipsAvailabilityReports(int id); static VirtualIp getClusterVirtualIpDetails(int id, int lbid, int cid, String address, IpVersion version, VipType vipType); static Suspension getLoadBalancerSuspensionDetails(String reason, int ticketId, String user); static Backup getLoadbalancerBackupDetails(); static Host getHostDetails(); static VirtualIp getLoadbalancerVirtualIpDetails(int id, int loadBalancerId, int clusterId, String address, VipType vipType); static RateLimit getRateLimitDetails(int ticketId, int maxRequestsPerSecond); static Integer rndInt(int lo, int hi); static Long rndLong(int lo, int hi); static String rndIp(); static Double rndDouble(double lo, double hi); static Object rndChoice(List oList); static Object rndChoice(Object[] oArray); static Backup rndBackup(); static Backups rndBackups(); static HostMachineDetails newHostMachineDetails(); static HostCapacityReport rndHostCapacityReport(); static Host rndHostPut(); static HostCapacityReports rndHostCapacityReports(int max); static Host rndHostPost(); static ConnectionThrottle rndConnectionThrottle(); static LoadBalancerUsageRecord rndCurrentUsage(); static Hosts rndHosts(int max); static Node rndNode(); static Nodes rndNodes(int max); static RateLimit rndRateLimit(); static SessionPersistence rndSessionPersistance(); static LoadBalancer rndLoadBalancer(); static VirtualIpBlock getVirtualIpBlock(String lo, String hi); static VirtualIpBlocks getVirtualIpBlocks(); static NetInterface newNetInterface(String name, String... blocks); static CertInfo newCertInfo(int i, ZonedDateTime notBefore, ZonedDateTime notAfter);  }### Answer:
@Test public void testGetClusterVirtualIpsDetails() { Object obj = StubFactory.getVirtualIpsDetails(); assertTrue("Expected VirtualIps", obj instanceof VirtualIps); }