"configClusterName": "config",
    "meta": {
      "fakeVM": false
    }
  },
  {
    "kind": "Kubernetes",
    "clusterName": "external",
    "podSubnet": "10.10.0.0/16",
    "svcSubnet": "10.255.10.0/24",
    "network": "network-1",
    "primaryClusterName": "external",
    "configClusterName": "config",
    "meta": {
      "fakeVM": false
    }
  }

  {
    "kind": "Kubernetes",
    "clusterName": "remote",
    "podSubnet": "10.20.0.0/16",
    "svcSubnet": "10.255.20.0/24",
    "network": "network-1",
    "primaryClusterName": "primary",
    "meta": {
      "fakeVM": false
    }
  },
  {
    "kind": "Kubernetes",
    "clusterName": "cross-network-primary",
    "podSubnet": "10.30.0.0/16",
    "svcSubnet": "10.255.30.0/24",
    "network": "network-2"
  }

    "podSubnet": "10.10.0.0/16",
    "svcSubnet": "10.255.10.0/24",
    "network": "network-1",
    "primaryClusterName": "external",
    "configClusterName": "config",
    "meta": {
      "fakeVM": false
    }
  }

	istioKube "istio.io/istio/pkg/kube"
	"istio.io/istio/pkg/test/framework/components/cluster"
	"istio.io/istio/pkg/test/util/file"
)

const (
	kubeconfigMetaKey = "kubeconfig"
	vmSupportMetaKey  = "fakeVM"
)

func BuildKube(origCfg cluster.Config, topology cluster.Topology) (cluster.Cluster, error) {
	cfg, err := validConfig(origCfg)
	if err != nil {
		return nil, err
	}

	"istio.io/istio/security/pkg/pki/util"
)

// FakeCA is a mock of CertificateAuthority.
type FakeCA struct {
	SignedCert    []byte
	SignErr       *caerror.Error
	KeyCertBundle *util.KeyCertBundle
	ReceivedIDs   []string
}

// Sign returns the SignErr if SignErr is not nil, otherwise, it returns SignedCert.
func (ca *FakeCA) Sign(csr []byte, certOpts ca.CertOpts) ([]byte, error) {

	ContainerID: "bbb-eee-www",
}

var (
	fakeIP                 = net.ParseIP("99.9.9.9")
	fakeGW                 = net.ParseIP("88.9.9.9")
	fakeIDX                = 0
	fakePrevResultIPConfig = cniv1.IPConfig{
		Interface: &fakeIDX,
		Address: net.IPNet{
			IP: fakeIP,
		},
		Gateway: fakeGW,
	}
)

func TestPushCNIAddEventSucceed(t *testing.T) {

	return nil
}

// fakeNs is a mock struct for testing
type fakeNs struct {
	closed *atomic.Bool
	fd     uintptr
	inode  uint64
}

func newFakeNs(fd uintptr) *fakeNs {
	// the fake inode is the fd! magic.
	return &fakeNs{closed: &atomic.Bool{}, fd: fd, inode: uint64(fd)}
}

func newFakeNsInode(fd uintptr, inode uint64) *fakeNs {
	return &fakeNs{closed: &atomic.Bool{}, fd: fd, inode: inode}
}

func (d *fakeDriver) getDB(name string) *fakeDB {
	d.mu.Lock()
	defer d.mu.Unlock()
	if d.dbs == nil {
		d.dbs = make(map[string]*fakeDB)
	}
	db, ok := d.dbs[name]
	if !ok {
		db = &fakeDB{name: name}
		d.dbs[name] = db
	}
	return db
}

func (db *fakeDB) wipe() {
	db.mu.Lock()
	defer db.mu.Unlock()
	db.tables = nil
}

func NewFake() *FakeInterface {
	fake := &FakeInterface{}
	fake.Reset()
	return fake
}

// Reset clears fake's sets/maps
func (fake *FakeInterface) Reset() {
	fake.ClearedIPs = sets.New[string]()
	fake.ClearedPorts = sets.New[int]()
	fake.ClearedNATs = make(map[string]string)
	fake.ClearedPortNATs = make(map[int]string)
}

// ClearEntriesForIP is part of Interface

	IDValue     string
}

func (f FakeEnvironment) ID() resource.ID {
	return resource.FakeID(f.IDValue)
}

func (f FakeEnvironment) IsMultiCluster() bool {
	return false
}

func (f FakeEnvironment) IsMultiNetwork() bool {
	return false
}

func (f FakeEnvironment) EnvironmentName() string {
	if len(f.Name) == 0 {
		return "fake"
	}
	return f.Name
}

func (f FakeEnvironment) AllClusters() cluster.Clusters {