mirror of
https://github.com/aauren/tailscale-bind-ddns.git
synced 2026-10-25 13:19:34 +00:00
Aaron U'Ren
771 lines
16 KiB
Go
771 lines
16 KiB
Go
package bind
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import (
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"context"
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"fmt"
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"net"
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"testing"
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"time"
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"github.com/aauren/tailscale-bind-ddns/pkg/config"
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"github.com/stretchr/testify/assert"
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)
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func TestNewClient(t *testing.T) {
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tests := []struct {
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name string
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server string
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port int
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zone string
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keyName string
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keySecret string
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algorithm string
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ttl time.Duration
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wantErr bool
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wantError string
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}{
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{
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name: "valid client",
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server: "dns.example.com",
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port: 53,
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zone: "test.example.com",
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300 * time.Second,
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wantErr: false,
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},
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{
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name: "missing server",
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server: "",
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port: 53,
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zone: "test.example.com",
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300 * time.Second,
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wantErr: true,
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wantError: "server is required",
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},
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{
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name: "missing zone",
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server: "dns.example.com",
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port: 53,
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zone: "",
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300 * time.Second,
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wantErr: true,
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wantError: "zone is required",
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},
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{
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name: "missing key name",
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server: "dns.example.com",
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port: 53,
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zone: "test.example.com",
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keyName: "",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300 * time.Second,
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wantErr: true,
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wantError: "key name is required",
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},
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{
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name: "missing key secret",
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server: "dns.example.com",
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port: 53,
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zone: "test.example.com",
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keyName: "test-key",
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keySecret: "",
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algorithm: "hmac-sha256",
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ttl: 300 * time.Second,
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wantErr: true,
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wantError: "key secret is required",
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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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client, err := NewClient(tt.server, tt.port, tt.zone, tt.keyName, tt.keySecret, tt.algorithm, tt.ttl, nil)
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if tt.wantErr {
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assert.Error(t, err)
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assert.Nil(t, client)
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if tt.wantError != "" {
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assert.Contains(t, err.Error(), tt.wantError)
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}
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} else {
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assert.NoError(t, err)
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assert.NotNil(t, client)
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assert.Equal(t, tt.server, client.server)
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assert.Equal(t, tt.port, client.port)
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assert.Equal(t, tt.zone, client.zone)
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assert.Equal(t, tt.keyName, client.keyName)
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assert.Equal(t, tt.keySecret, client.keySecret)
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assert.Equal(t, tt.algorithm, client.algorithm)
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assert.Equal(t, uint32(tt.ttl.Seconds()), client.ttl)
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}
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})
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}
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}
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func TestCreateTSIGKey(t *testing.T) {
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client := &Client{
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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}
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tests := []struct {
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name string
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algorithm string
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wantErr bool
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wantError string
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}{
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{
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name: "valid hmac-sha256",
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algorithm: "hmac-sha256",
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wantErr: false,
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},
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{
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name: "valid hmac-sha1",
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algorithm: "hmac-sha1",
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wantErr: false,
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},
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{
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name: "valid hmac-md5",
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algorithm: "hmac-md5",
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wantErr: false,
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},
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{
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name: "valid hmac-sha384",
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algorithm: "hmac-sha384",
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wantErr: false,
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},
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{
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name: "valid hmac-sha512",
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algorithm: "hmac-sha512",
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wantErr: false,
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},
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{
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name: "invalid algorithm",
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algorithm: "invalid-algorithm",
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wantErr: true,
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wantError: "unsupported TSIG algorithm",
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},
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{
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name: "empty algorithm uses default",
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algorithm: "",
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wantErr: false,
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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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client.algorithm = tt.algorithm
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key, err := client.createTSIGKey()
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if tt.wantErr {
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assert.Error(t, err)
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assert.Nil(t, key)
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if tt.wantError != "" {
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assert.Contains(t, err.Error(), tt.wantError)
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}
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} else {
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assert.NoError(t, err)
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assert.NotNil(t, key)
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assert.Equal(t, client.keyName, key.Hdr.Name)
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expectedAlgorithm := tt.algorithm
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if expectedAlgorithm == "" {
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expectedAlgorithm = "hmac-sha256."
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} else {
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expectedAlgorithm = fmt.Sprintf("%s.", tt.algorithm)
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}
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assert.Equal(t, expectedAlgorithm, key.Algorithm)
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}
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})
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}
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}
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func TestUpdateRecordsDryRun(t *testing.T) {
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client := &Client{
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server: "dns.example.com",
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port: 53,
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zone: "test.example.com",
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300,
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}
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records := []DNSRecord{
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{
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Name: "machine1",
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Value: "100.64.1.1",
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TTL: 300,
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},
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{
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Name: "machine2",
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Value: "100.64.1.2",
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TTL: 300,
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},
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}
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ctx := context.Background()
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err := client.UpdateRecords(ctx, records, true) // dry run = true
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// Dry run should not return an error
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assert.NoError(t, err)
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}
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func TestUpdateRecordsEmpty(t *testing.T) {
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client := &Client{
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server: "dns.example.com",
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port: 53,
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zone: "test.example.com",
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300,
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}
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ctx := context.Background()
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err := client.UpdateRecords(ctx, []DNSRecord{}, false)
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// Empty records should not return an error
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assert.NoError(t, err)
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}
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func TestDNSRecordValidation(t *testing.T) {
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tests := []struct {
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name string
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record DNSRecord
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wantErr bool
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}{
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{
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name: "valid IPv4 record",
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record: DNSRecord{
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Name: "test.example.com",
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Value: "192.168.1.1",
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TTL: 300,
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},
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wantErr: false,
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},
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{
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name: "valid IPv6 record",
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record: DNSRecord{
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Name: "test.example.com",
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Value: "2001:db8::1",
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TTL: 300,
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},
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wantErr: false,
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},
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{
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name: "invalid IP address",
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record: DNSRecord{
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Name: "test.example.com",
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Value: "invalid-ip",
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TTL: 300,
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},
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wantErr: true,
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},
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{
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name: "empty name",
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record: DNSRecord{
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Name: "",
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Value: "192.168.1.1",
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TTL: 300,
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},
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wantErr: false, // Empty name is valid, will be handled by DNS library
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},
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{
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name: "zero TTL",
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record: DNSRecord{
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Name: "test.example.com",
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Value: "192.168.1.1",
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TTL: 0,
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},
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wantErr: false, // Zero TTL is valid
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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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// Test IP address parsing
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ip := net.ParseIP(tt.record.Value)
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if tt.wantErr {
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assert.Nil(t, ip, "Expected invalid IP address")
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} else {
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assert.NotNil(t, ip, "Expected valid IP address")
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}
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})
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}
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}
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func TestStartUpdating(t *testing.T) {
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client := &Client{
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server: "dns.example.com",
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port: 53,
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zone: "test.example.com",
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300,
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}
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ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
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defer cancel()
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recordChan := make(chan []DNSRecord, 1)
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// Send some test records
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testRecords := []DNSRecord{
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{
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Name: "test-machine",
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Value: "100.64.1.1",
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TTL: 300,
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},
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}
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go func() {
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recordChan <- testRecords
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}()
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// Start updating with a very short interval
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go client.StartUpdating(ctx, 10*time.Millisecond, recordChan, true) // dry run
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// Wait for context cancellation
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<-ctx.Done()
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}
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func TestClientFields(t *testing.T) {
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client := &Client{
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server: "dns.example.com",
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port: 53,
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zone: "test.example.com",
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keyName: "test-key",
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keySecret: "test-secret",
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algorithm: "hmac-sha256",
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ttl: 300,
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}
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assert.Equal(t, "dns.example.com", client.server)
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assert.Equal(t, 53, client.port)
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assert.Equal(t, "test.example.com", client.zone)
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assert.Equal(t, "test-key", client.keyName)
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assert.Equal(t, "test-secret", client.keySecret)
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assert.Equal(t, "hmac-sha256", client.algorithm)
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assert.Equal(t, uint32(300), client.ttl)
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}
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func TestCreatePTRRecord(t *testing.T) {
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tests := []struct {
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name string
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ipStr string
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hostname string
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ptrConfig *config.PTRConfig
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wantRecord bool
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wantErr bool
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wantError string
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}{
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{
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name: "IPv4 PTR record enabled",
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ipStr: "100.64.1.1",
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hostname: "test.example.com",
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ptrConfig: &config.PTRConfig{
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Enabled: true,
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IPv4Zone: "64.100.in-addr.arpa",
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IPv4Subnet: "100.64.0.0/10",
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},
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wantRecord: true,
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wantErr: false,
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},
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{
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name: "IPv4 PTR record disabled",
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ipStr: "100.64.1.1",
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hostname: "test.example.com",
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ptrConfig: &config.PTRConfig{
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Enabled: false,
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},
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wantRecord: false,
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wantErr: false,
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},
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{
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name: "IPv4 address not in subnet",
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ipStr: "192.168.1.1",
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hostname: "test.example.com",
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ptrConfig: &config.PTRConfig{
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Enabled: true,
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IPv4Zone: "64.100.in-addr.arpa",
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IPv4Subnet: "100.64.0.0/10",
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},
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wantRecord: false,
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wantErr: false,
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},
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{
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name: "IPv6 PTR record enabled",
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ipStr: "fd7a:115c:a1e0::1",
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hostname: "test.example.com",
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ptrConfig: &config.PTRConfig{
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Enabled: true,
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IPv6Enabled: true,
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IPv6Zone: "0.e.1.a.1.c.5.1.1.a.7.d.f.ip6.arpa",
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IPv6Subnet: "fd7a:115c:a1e0::/64",
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},
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wantRecord: true,
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wantErr: false,
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},
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{
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name: "IPv6 PTR record disabled",
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ipStr: "fd7a:115c:a1e0::1",
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hostname: "test.example.com",
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ptrConfig: &config.PTRConfig{
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Enabled: true,
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IPv6Enabled: false,
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},
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wantRecord: false,
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wantErr: false,
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},
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{
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name: "Invalid IP address",
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ipStr: "invalid-ip",
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hostname: "test.example.com",
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ptrConfig: &config.PTRConfig{
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Enabled: true,
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},
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wantRecord: false,
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wantErr: true,
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wantError: "invalid IP address",
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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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client := &Client{
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ptrConfig: tt.ptrConfig,
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ttl: 300,
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}
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record, err := client.CreatePTRRecord(tt.ipStr, tt.hostname)
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if tt.wantErr {
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assert.Error(t, err)
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assert.Nil(t, record)
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if tt.wantError != "" {
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assert.Contains(t, err.Error(), tt.wantError)
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}
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} else {
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assert.NoError(t, err)
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if tt.wantRecord {
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assert.NotNil(t, record)
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assert.Equal(t, "PTR", record.Type)
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assert.Equal(t, tt.hostname, record.Value)
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assert.Equal(t, uint32(300), record.TTL)
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} else {
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assert.Nil(t, record)
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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 TestIsIPInSubnet(t *testing.T) {
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tests := []struct {
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name string
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ipStr string
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subnet string
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want bool
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}{
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{
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name: "IPv4 in subnet",
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ipStr: "100.64.1.1",
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subnet: "100.64.0.0/10",
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want: true,
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},
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{
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name: "IPv4 not in subnet",
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ipStr: "192.168.1.1",
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subnet: "100.64.0.0/10",
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want: false,
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},
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{
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name: "IPv6 in subnet",
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ipStr: "fd7a:115c:a1e0::1",
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subnet: "fd7a:115c:a1e0::/64",
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want: true,
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},
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{
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name: "IPv6 not in subnet",
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ipStr: "2001:db8::1",
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subnet: "fd7a:115c:a1e0::/64",
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want: false,
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},
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{
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name: "Invalid IP",
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ipStr: "invalid-ip",
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subnet: "100.64.0.0/10",
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want: false,
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},
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{
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name: "Empty subnet",
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ipStr: "100.64.1.1",
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subnet: "",
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want: false,
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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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result := isIPInSubnet(tt.ipStr, tt.subnet)
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assert.Equal(t, tt.want, result)
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})
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}
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}
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func TestIPv6ToReverseDNS(t *testing.T) {
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tests := []struct {
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name string
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ipStr string
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want string
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wantErr bool
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}{
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{
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name: "Valid IPv6",
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ipStr: "2001:db8::1",
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want: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.",
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},
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{
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name: "Invalid IPv6",
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ipStr: "invalid-ipv6",
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want: "",
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wantErr: true,
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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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result := ipv6ToReverseDNS(tt.ipStr)
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if tt.wantErr {
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assert.Empty(t, result)
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} else {
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assert.Equal(t, tt.want, result)
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}
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})
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}
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}
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func TestGenerateIPv4PTRZone(t *testing.T) {
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tests := []struct {
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name string
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ipStr string
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subnetSize int
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want string
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wantErr bool
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}{
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{
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name: "IPv4 /8 subnet",
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ipStr: "100.64.0.1",
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subnetSize: 8,
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want: "100.in-addr.arpa",
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wantErr: false,
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},
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{
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name: "IPv4 /16 subnet",
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ipStr: "100.64.0.1",
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|
subnetSize: 16,
|
|
want: "64.100.in-addr.arpa",
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "IPv4 /24 subnet",
|
|
ipStr: "100.64.0.1",
|
|
subnetSize: 24,
|
|
want: "0.64.100.in-addr.arpa",
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "Invalid subnet size",
|
|
ipStr: "100.64.0.1",
|
|
subnetSize: 32,
|
|
want: "",
|
|
wantErr: true,
|
|
},
|
|
{
|
|
name: "Invalid IP address",
|
|
ipStr: "invalid",
|
|
subnetSize: 16,
|
|
want: "",
|
|
wantErr: true,
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
client := &Client{}
|
|
result, err := client.generateIPv4PTRZone(tt.ipStr, tt.subnetSize)
|
|
if tt.wantErr {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, tt.want, result)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGenerateIPv6PTRZone(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
ipStr string
|
|
subnetSize int
|
|
want string
|
|
wantErr bool
|
|
}{
|
|
{
|
|
name: "IPv6 /32 subnet",
|
|
ipStr: "2001:db8::1",
|
|
subnetSize: 32,
|
|
want: "8.b.d.0.1.0.0.2.ip6.arpa",
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "IPv6 /48 subnet",
|
|
ipStr: "2001:db8::1",
|
|
subnetSize: 48,
|
|
want: "0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa",
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "IPv6 /64 subnet",
|
|
ipStr: "2001:db8::1",
|
|
subnetSize: 64,
|
|
want: "0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa",
|
|
wantErr: false,
|
|
},
|
|
{
|
|
name: "Invalid subnet size",
|
|
ipStr: "2001:db8::1",
|
|
subnetSize: 128,
|
|
want: "",
|
|
wantErr: true,
|
|
},
|
|
{
|
|
name: "Invalid IPv6 address",
|
|
ipStr: "192.168.1.1",
|
|
subnetSize: 64,
|
|
want: "",
|
|
wantErr: true,
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
client := &Client{}
|
|
result, err := client.generateIPv6PTRZone(tt.ipStr, tt.subnetSize)
|
|
if tt.wantErr {
|
|
assert.Error(t, err)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, tt.want, result)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestExtractIPv4ZoneFromPTRName(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
ptrName string
|
|
subnetSize int
|
|
want string
|
|
}{
|
|
{
|
|
name: "IPv4 /8 PTR name",
|
|
ptrName: "1.0.64.100.in-addr.arpa.",
|
|
subnetSize: 8,
|
|
want: "100.in-addr.arpa",
|
|
},
|
|
{
|
|
name: "IPv4 /16 PTR name",
|
|
ptrName: "1.0.64.100.in-addr.arpa.",
|
|
subnetSize: 16,
|
|
want: "64.100.in-addr.arpa",
|
|
},
|
|
{
|
|
name: "IPv4 /24 PTR name",
|
|
ptrName: "1.0.64.100.in-addr.arpa.",
|
|
subnetSize: 24,
|
|
want: "0.64.100.in-addr.arpa",
|
|
},
|
|
{
|
|
name: "Invalid PTR name",
|
|
ptrName: "invalid",
|
|
subnetSize: 16,
|
|
want: "",
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
client := &Client{
|
|
ptrConfig: &config.PTRConfig{
|
|
Enabled: true,
|
|
IPv4SubnetSize: tt.subnetSize,
|
|
},
|
|
}
|
|
result := client.extractIPv4ZoneFromPTRName(tt.ptrName)
|
|
assert.Equal(t, tt.want, result)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestExtractIPv6ZoneFromPTRName(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
ptrName string
|
|
subnetSize int
|
|
want string
|
|
}{
|
|
{
|
|
name: "IPv6 /32 PTR name",
|
|
ptrName: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.",
|
|
subnetSize: 32,
|
|
want: "8.b.d.0.1.0.0.2.ip6.arpa",
|
|
},
|
|
{
|
|
name: "IPv6 /48 PTR name",
|
|
ptrName: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.",
|
|
subnetSize: 48,
|
|
want: "0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa",
|
|
},
|
|
{
|
|
name: "IPv6 /64 PTR name",
|
|
ptrName: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.",
|
|
subnetSize: 64,
|
|
want: "0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa",
|
|
},
|
|
{
|
|
name: "Invalid PTR name",
|
|
ptrName: "invalid",
|
|
subnetSize: 64,
|
|
want: "",
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
client := &Client{
|
|
ptrConfig: &config.PTRConfig{
|
|
Enabled: true,
|
|
IPv6Enabled: true,
|
|
IPv6SubnetSize: tt.subnetSize,
|
|
},
|
|
}
|
|
result := client.extractIPv6ZoneFromPTRName(tt.ptrName)
|
|
assert.Equal(t, tt.want, result)
|
|
})
|
|
}
|
|
}
|