}{
		{set.NewStringSet(), set.NewStringSet()},
		{set.CreateStringSet("localhost"), set.NewStringSet()},
		{set.CreateStringSet("localhost", "10.0.0.1"), set.CreateStringSet("10.0.0.1:9000")},
		{set.CreateStringSet("localhost:9001", "10.0.0.1"), set.CreateStringSet("10.0.0.1:9000")},
		{set.CreateStringSet("localhost", "10.0.0.1:9001"), set.CreateStringSet("10.0.0.1:9001")},

			set.CreateStringSet("dep1", "dep2", "dep3"),
			set.CreateStringSet("dep1", "dep2", "dep3", "dep4"),
			[]string{},
		},
		// Test3: not currently under site replication.
		{
			[]madmin.PeerInfo{},
			set.CreateStringSet(),
			set.CreateStringSet("dep1", "dep2", "dep3", "dep4"),
			[]string{},
		},
	}

	for i, tc := range testCases {

	gi, ok := cache.iamGroupsMap[group]
	if !ok {
		return updatedAt, errNoSuchGroup
	}

	s := set.CreateStringSet(gi.Members...)
	d := set.CreateStringSet(members...)
	gi.Members = s.Difference(d).ToSlice()

	if !updateCacheOnly {
		err := store.saveGroupInfo(ctx, group, gi)
		if err != nil {
			return updatedAt, err
		}
	}

			Principal: miniogopolicy.User{AWS: set.CreateStringSet("*")},
			Resources: set.CreateStringSet(policy.NewResource(bucketName).String()),
			Actions:   set.CreateStringSet("s3:GetBucketLocation", "s3:ListBucket"),
		},
		{
			Effect:    string(policy.Allow),
			Principal: miniogopolicy.User{AWS: set.CreateStringSet("*")},
			Resources: set.CreateStringSet(policy.NewResource(bucketName + "/" + prefix).String()),

	}{
		{[]string{"localhost:" + casePorts[0]}, set.CreateStringSet("127.0.0.1:" + casePorts[0])},
		{[]string{nonLoopBackIP + ":" + casePorts[1]}, set.CreateStringSet(nonLoopBackIP + ":" + casePorts[1])},
		{[]string{"127.0.0.1:" + casePorts[2], nonLoopBackIP + ":" + casePorts[2]}, set.CreateStringSet("127.0.0.1:"+casePorts[2], nonLoopBackIP+":"+casePorts[2])},
		{[]string{"localhost:" + casePorts[3]}, set.CreateStringSet("127.0.0.1:" + casePorts[3])},

var NotifySubSystems = set.CreateStringSet(
	NotifyKafkaSubSys,
	NotifyMQTTSubSys,
	NotifyMySQLSubSys,
	NotifyNATSSubSys,
	NotifyNSQSubSys,
	NotifyESSubSys,
	NotifyAMQPSubSys,
	NotifyPostgresSubSys,
	NotifyRedisSubSys,
	NotifyWebhookSubSys,
)

// LambdaSubSystems - all lambda sub-systems
var LambdaSubSystems = set.CreateStringSet(
	LambdaWebhookSubSys,
)

		}
	}
}

func TestMustGetLocalIP4(t *testing.T) {
	testCases := []struct {
		expectedIPList set.StringSet
	}{
		{set.CreateStringSet("127.0.0.1")},
	}

	for _, testCase := range testCases {
		ipList := mustGetLocalIP4()
		if testCase.expectedIPList != nil && testCase.expectedIPList.Intersection(ipList).IsEmpty() {

		c.Fatalf("group list err: %v", err)
	}
	if !set.CreateStringSet(groups...).Contains(group) {
		c.Fatalf("created group not present!")
	}
	groupInfo, err := s.adm.GetGroupDescription(ctx, group)
	if err != nil {
		c.Fatalf("group desc err: %v", err)
	}
	c.Assert(groupInfo.Name, group)
	c.Assert(set.CreateStringSet(groupInfo.Members...), set.CreateStringSet(accessKey))
	c.Assert(groupInfo.Policy, policy)

			r, ok := dnsBuckets[bucket.Name]
			if !ok {
				bucketsToBeUpdated.Add(bucket.Name)
				continue
			}
			if !globalDomainIPs.Intersection(set.CreateStringSet(getHostsSlice(r)...)).IsEmpty() {
				if globalDomainIPs.Difference(set.CreateStringSet(getHostsSlice(r)...)).IsEmpty() && !domainMissing {
					// No difference in terms of domainIPs and nothing
					// has changed so we don't change anything on the etcd.
					//

		username := userDNToUsernameMap[userDistName]
		groups, err := l.LDAP.SearchForUserGroups(conn, username, userDistName)
		if err != nil {
			return nil, err
		}
		res[userDistName] = set.CreateStringSet(groups...)
	}

	return res, nil