mirror of
https://github.com/kubenetworks/kubevpn.git
synced 2025-12-24 11:51:13 +08:00
98c4a61ca1
* feat: mode sync modify kubeconfig apiserver to in cluster apiserver * feat: add ut for sync mode and run mode * fix: bugs
313 lines
7.3 KiB
Go
313 lines
7.3 KiB
Go
package util
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import (
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"context"
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"encoding/json"
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"fmt"
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"net"
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"reflect"
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"testing"
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"time"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/util/intstr"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/util/retry"
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"k8s.io/kubectl/pkg/cmd/util"
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"sigs.k8s.io/yaml"
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"github.com/wencaiwulue/kubevpn/v2/pkg/config"
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plog "github.com/wencaiwulue/kubevpn/v2/pkg/log"
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)
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type cidrUt struct {
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namespace string
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clientset *kubernetes.Clientset
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restclient *rest.RESTClient
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restconfig *rest.Config
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f util.Factory
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}
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func (u *cidrUt) init() {
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var err error
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configFlags := genericclioptions.NewConfigFlags(true)
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u.f = util.NewFactory(util.NewMatchVersionFlags(configFlags))
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if u.restconfig, err = u.f.ToRESTConfig(); err != nil {
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plog.G(context.Background()).Fatal(err)
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}
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if u.restclient, err = rest.RESTClientFor(u.restconfig); err != nil {
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plog.G(context.Background()).Fatal(err)
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}
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if u.clientset, err = kubernetes.NewForConfig(u.restconfig); err != nil {
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plog.G(context.Background()).Fatal(err)
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}
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if u.namespace, _, err = u.f.ToRawKubeConfigLoader().Namespace(); err != nil {
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plog.G(context.Background()).Fatal(err)
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}
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}
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func TestByDumpClusterInfo(t *testing.T) {
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u := &cidrUt{}
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u.init()
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info, err := GetCIDRByDumpClusterInfo(context.Background(), u.clientset)
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if err != nil {
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t.Log(err.Error())
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}
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for _, ipNet := range info {
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t.Log(ipNet.String())
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}
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}
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func TestByCreateSvc(t *testing.T) {
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u := &cidrUt{}
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u.init()
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info, err := GetServiceCIDRByCreateService(context.Background(), u.clientset.CoreV1().Services("default"))
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if err != nil {
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t.Log(err.Error())
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}
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if info != nil {
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t.Log(info.String())
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}
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}
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func TestElegant(t *testing.T) {
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u := &cidrUt{}
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u.init()
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elegant := GetCIDR(context.Background(), u.clientset, u.restconfig, u.namespace, config.Image)
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for _, ipNet := range elegant {
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t.Log(ipNet.String())
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}
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}
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func TestWaitBackoff(t *testing.T) {
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var last = time.Now()
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_ = retry.OnError(
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wait.Backoff{
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Steps: 10,
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Duration: time.Millisecond * 50,
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}, func(err error) bool {
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return err != nil
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}, func() error {
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now := time.Now()
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fmt.Println(now.Sub(last).String())
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last = now
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return fmt.Errorf("")
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})
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}
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func TestArray(t *testing.T) {
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s := []int{1, 2, 3, 1, 2, 3, 1, 2, 3}
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for i := 0; i < 3; i++ {
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ints := s[i*3 : i*3+3]
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println(ints[0], ints[1], ints[2])
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}
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}
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func TestPatch(t *testing.T) {
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var p = v1.Probe{
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ProbeHandler: v1.ProbeHandler{HTTPGet: &v1.HTTPGetAction{
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Path: "/health",
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Port: intstr.FromInt32(9080),
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Scheme: "HTTP",
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}},
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}
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marshal, err := json.Marshal(p)
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if err != nil {
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panic(err)
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}
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fmt.Println(string(marshal))
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var pp v1.Probe
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err = json.Unmarshal(marshal, &pp)
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if err != nil {
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panic(err)
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}
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bytes, err := yaml.Marshal(pp)
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if err != nil {
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panic(err)
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}
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fmt.Println(string(bytes))
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}
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func TestRemoveCIDRsContainingIPs(t *testing.T) {
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tests := []struct {
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name string
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cidrStrings []string
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ipStrings []string
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expectedCIDRs []string
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expectPanic bool
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}{
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{
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name: "Normal case - some overlaps",
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cidrStrings: []string{
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"10.140.45.0/24", "10.140.44.0/24", "10.31.0.0/24", "10.31.1.0/24", "10.31.2.0/24", "10.31.3.0/24", "10.140.47.0/24", "10.140.46.0/24",
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},
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ipStrings: []string{
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"10.140.45.1", "10.140.46.220", "10.140.45.180", "10.140.45.152",
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"10.140.46.183", "10.140.45.52", "10.140.47.148", "10.140.46.214",
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},
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expectedCIDRs: []string{
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"10.140.44.0/24", "10.31.0.0/24", "10.31.1.0/24", "10.31.2.0/24", "10.31.3.0/24",
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},
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expectPanic: false,
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},
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{
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name: "Empty CIDR list",
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cidrStrings: []string{},
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ipStrings: []string{
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"10.140.45.1",
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},
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expectedCIDRs: []string{},
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expectPanic: false,
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},
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{
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name: "Empty IP list",
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cidrStrings: []string{
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"10.140.45.0/24", "10.140.44.0/24",
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},
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ipStrings: []string{},
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expectedCIDRs: []string{
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"10.140.45.0/24", "10.140.44.0/24",
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},
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expectPanic: false,
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},
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{
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name: "All CIDRs removed",
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cidrStrings: []string{
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"10.140.45.0/24", "10.140.46.0/24",
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},
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ipStrings: []string{
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"10.140.45.1", "10.140.46.220",
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},
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expectedCIDRs: []string{},
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expectPanic: false,
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},
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{
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name: "Overlapping CIDRs",
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cidrStrings: []string{
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"10.140.45.0/24", "10.140.45.0/25", "10.140.45.128/25",
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},
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ipStrings: []string{
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"10.140.45.1", "10.140.45.129",
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},
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expectedCIDRs: []string{},
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expectPanic: false,
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},
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{
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name: "Invalid CIDR format",
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cidrStrings: []string{
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"10.140.45.0/24", "invalid-cidr",
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},
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ipStrings: []string{
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"10.140.45.1",
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},
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expectedCIDRs: nil, // Panic expected
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expectPanic: true,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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defer func() {
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if r := recover(); r != nil {
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if !test.expectPanic {
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t.Errorf("unexpected panic: %v", r)
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}
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} else if test.expectPanic {
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t.Errorf("expected panic but got none")
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}
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}()
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var cidrs []*net.IPNet
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for _, cidr := range test.cidrStrings {
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_, ipNet, err := net.ParseCIDR(cidr)
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if err != nil {
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if test.expectPanic {
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panic(err)
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}
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t.Fatalf("failed to parse CIDR %s: %v", cidr, err)
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}
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cidrs = append(cidrs, ipNet)
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}
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var ipList []net.IP
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for _, ip := range test.ipStrings {
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parsedIP := net.ParseIP(ip)
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if parsedIP == nil {
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t.Fatalf("failed to parse IP %s", ip)
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}
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ipList = append(ipList, parsedIP)
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}
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cidrs = RemoveCIDRsContainingIPs(cidrs, ipList)
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if !test.expectPanic {
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if len(cidrs) != len(test.expectedCIDRs) {
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t.Fatalf("unexpected number of remaining CIDRs: got %d, want %d", len(cidrs), len(test.expectedCIDRs))
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}
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for i, cidr := range cidrs {
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if cidr.String() != test.expectedCIDRs[i] {
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t.Errorf("unexpected CIDR at index %d: got %s, want %s", i, cidr.String(), test.expectedCIDRs[i])
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}
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}
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}
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})
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}
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}
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func TestRemoveLargerOverlappingCIDRs(t *testing.T) {
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type args struct {
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cidrNets []*net.IPNet
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}
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tests := []struct {
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name string
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args args
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want []*net.IPNet
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}{
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{
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name: "equal",
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args: args{
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cidrNets: []*net.IPNet{
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{IP: net.ParseIP("192.168.1.0"), Mask: net.CIDRMask(24, 32)},
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{IP: net.ParseIP("192.168.2.0"), Mask: net.CIDRMask(24, 32)},
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}},
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want: []*net.IPNet{
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{IP: net.ParseIP("192.168.1.0"), Mask: net.CIDRMask(24, 32)},
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{IP: net.ParseIP("192.168.2.0"), Mask: net.CIDRMask(24, 32)},
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},
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},
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{
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name: "larger",
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args: args{
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cidrNets: []*net.IPNet{
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{IP: net.ParseIP("192.168.1.0"), Mask: net.CIDRMask(24, 32)},
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{IP: net.ParseIP("192.168.2.0"), Mask: net.CIDRMask(16, 32)},
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}},
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want: []*net.IPNet{
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{IP: net.ParseIP("192.168.2.0"), Mask: net.CIDRMask(16, 32)},
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},
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},
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{
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name: "deduplicated",
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args: args{
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cidrNets: []*net.IPNet{
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{IP: net.ParseIP("192.168.1.0"), Mask: net.CIDRMask(24, 32)},
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{IP: net.ParseIP("192.168.1.0"), Mask: net.CIDRMask(24, 32)},
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}},
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want: []*net.IPNet{
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{IP: net.ParseIP("192.168.1.0"), Mask: net.CIDRMask(24, 32)},
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := RemoveLargerOverlappingCIDRs(tt.args.cidrNets); !reflect.DeepEqual(got, tt.want) {
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t.Errorf("RemoveLargerOverlappingCIDRs() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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